/* roulang page: index */
:root {
            --ink-deep: #0E1116;
            --ink-card: #161A20;
            --ink-body: #2D323A;
            --ink-muted: #5A6470;
            --ink-soft: #6B7480;
            --accent: #00E5A0;
            --accent-dark: #00C78F;
            --violet: #7C5CFF;
            --bg: #F5F6F8;
            --white: #FFFFFF;
            --border-light: #E4E7ED;
            --border-dark: #2A313B;
            --text-dark-bg: #FFFFFF;
            --text-dark-bg-muted: #B0B8C2;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 4px 16px rgba(0,0,0,0.06);
            --shadow-hover: 0 4px 8px rgba(0,0,0,0.06), 0 12px 32px rgba(0,0,0,0.10);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition: all 0.2s ease-in-out;
            --section-pad-desktop: 80px 0;
            --section-pad-tablet: 64px 0;
            --section-pad-mobile: 48px 0;
            --container-max: 1200px;
        }

        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--ink-body);
            background-color: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover, a:focus-visible {
            color: var(--accent-dark);
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-stack);
            line-height: 1.25;
            color: var(--ink-deep);
            margin: 0 0 0.5rem;
            font-weight: 700;
        }

        h1 {
            font-size: clamp(2rem, 4.5vw, 3.5rem);
            font-weight: 800;
            letter-spacing: -0.01em;
        }
        h2 {
            font-size: clamp(1.6rem, 3vw, 2.25rem);
            font-weight: 700;
        }
        h3 {
            font-size: clamp(1.15rem, 2vw, 1.45rem);
            font-weight: 600;
        }
        h4 {
            font-size: 1.05rem;
            font-weight: 600;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .section-pad {
            padding: var(--section-pad-desktop);
        }
        .section-pad-sm {
            padding: 56px 0;
        }
        .section-dark {
            background: var(--ink-deep);
            color: var(--text-dark-bg);
        }
        .section-dark h1,
        .section-dark h2,
        .section-dark h3 {
            color: var(--text-dark-bg);
        }
        .section-alt {
            background: var(--white);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-dark);
            margin-bottom: 12px;
        }
        .section-label::before {
            content: "";
            display: inline-block;
            width: 20px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .text-muted {
            color: var(--ink-muted);
        }
        .text-soft {
            color: var(--ink-soft);
        }
        .text-dark-muted {
            color: var(--text-dark-bg-muted);
        }
        .text-accent {
            color: var(--accent-dark);
        }
        .text-violet {
            color: var(--violet);
        }

        .lead {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--ink-muted);
        }

        .mt-1 { margin-top: 0.5rem; }
        .mt-2 { margin-top: 1rem; }
        .mt-3 { margin-top: 1.5rem; }
        .mt-4 { margin-top: 2rem; }
        .mb-1 { margin-bottom: 0.5rem; }
        .mb-2 { margin-bottom: 1rem; }
        .mb-3 { margin-bottom: 1.5rem; }
        .mb-4 { margin-bottom: 2rem; }
        .text-center { text-align: center; }

        /* ===== Header ===== */
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(0,0,0,0.04);
        }
        .brand-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            padding: 12px 0;
            gap: 16px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--ink-deep);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }
        .brand-logo .logo-mark {
            width: 38px;
            height: 38px;
            background: var(--ink-deep);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .brand-logo:hover {
            color: var(--ink-deep);
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-trigger {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid var(--border-light);
            background: var(--white);
            color: var(--ink-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-trigger:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
        }
        .subscribe-btn-header {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: 8px;
            background: var(--ink-deep);
            color: var(--white);
            font-size: 0.9rem;
            font-weight: 600;
            border: 1px solid var(--ink-deep);
            transition: var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }
        .subscribe-btn-header:hover {
            background: var(--ink-card);
            color: var(--accent);
            border-color: var(--ink-card);
            transform: translateY(-2px);
        }
        .nav-trigger {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            border: 1px solid var(--border-light);
            background: var(--white);
            color: var(--ink-deep);
            font-size: 1.2rem;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-trigger:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
        }

        .icon-nav {
            border-top: 1px solid var(--border-light);
            background: var(--white);
            padding: 8px 0;
        }
        .icon-nav-grid {
            display: flex;
            align-items: stretch;
            justify-content: space-between;
            gap: 4px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .icon-nav-grid::-webkit-scrollbar {
            display: none;
        }
        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 12px;
            min-width: 76px;
            border-radius: 10px;
            color: var(--ink-muted);
            font-size: 0.82rem;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
            text-align: center;
        }
        .nav-item .nav-icon {
            font-size: 1.35rem;
            line-height: 1;
            color: var(--ink-muted);
            transition: var(--transition);
        }
        .nav-item:hover {
            color: var(--accent-dark);
            background: rgba(0, 229, 160, 0.06);
        }
        .nav-item:hover .nav-icon {
            color: var(--accent-dark);
            transform: scale(1.08);
        }
        .nav-item.active {
            color: var(--accent-dark);
        }
        .nav-item.active .nav-icon {
            color: var(--accent-dark);
        }
        .nav-item.active::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        /* Mobile Nav Drawer */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(14, 17, 22, 0.6);
            z-index: 199;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .mobile-nav-overlay.open {
            opacity: 1;
        }
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -320px;
            width: 280px;
            height: 100vh;
            background: var(--white);
            z-index: 200;
            transition: right 0.32s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            padding: 20px 16px 32px;
            overflow-y: auto;
            box-shadow: -4px 0 24px rgba(0,0,0,0.1);
        }
        .mobile-drawer.open {
            right: 0;
        }
        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
        }
        .drawer-close {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid var(--border-light);
            background: transparent;
            color: var(--ink-deep);
            font-size: 1.2rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        .drawer-close:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
        }
        .drawer-nav-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px;
        }
        .drawer-nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            padding: 14px 8px;
            border-radius: 12px;
            background: var(--bg);
            color: var(--ink-deep);
            font-size: 0.82rem;
            font-weight: 500;
            transition: var(--transition);
            text-align: center;
        }
        .drawer-nav-item .nav-icon {
            font-size: 1.4rem;
            color: var(--ink-muted);
        }
        .drawer-nav-item:hover {
            background: rgba(0, 229, 160, 0.08);
            color: var(--accent-dark);
        }
        .drawer-nav-item.active {
            background: rgba(0, 229, 160, 0.12);
            color: var(--accent-dark);
        }
        .drawer-nav-item.active .nav-icon {
            color: var(--accent-dark);
        }

        /* ===== Hero Coupon Wall ===== */
        .hero-section {
            background: var(--ink-deep);
            background-image: linear-gradient(rgba(14,17,22,0.94), rgba(14,17,22,0.97)), url('/assets/images/7b1d5e48e96a238c.jpg');
            background-size: cover;
            background-position: center;
            color: var(--text-dark-bg);
            padding: 72px 0 80px;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: "";
            position: absolute;
            top: -120px;
            right: -120px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0,229,160,0.06), transparent 70%);
            pointer-events: none;
        }
        .hero-section::after {
            content: "";
            position: absolute;
            bottom: -80px;
            left: -80px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(124,92,255,0.08), transparent 70%);
            pointer-events: none;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-copy .hero-h1 {
            color: var(--white);
            font-size: clamp(2rem, 4vw, 3.2rem);
            margin-bottom: 16px;
        }
        .hero-subtitle {
            font-size: 1.08rem;
            line-height: 1.8;
            color: var(--text-dark-bg-muted);
            max-width: 520px;
            margin-bottom: 28px;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-align: center;
            white-space: nowrap;
        }
        .btn-accent {
            background: var(--accent);
            color: var(--ink-deep);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            color: var(--ink-deep);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0,229,160,0.3);
        }
        .btn-outline-light {
            background: transparent;
            color: var(--white);
            border: 1px solid rgba(255,255,255,0.4);
        }
        .btn-outline-light:hover {
            background: rgba(255,255,255,0.08);
            border-color: var(--white);
            color: var(--white);
            transform: translateY(-2px);
        }
        .btn-dark {
            background: var(--ink-deep);
            color: var(--white);
            border: 1px solid var(--ink-deep);
        }
        .btn-dark:hover {
            background: var(--ink-card);
            border-color: var(--ink-card);
            color: var(--accent);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 0.85rem;
            border-radius: 8px;
        }

        .coupon-wall {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .coupon-card-main {
            background: var(--ink-card);
            border: 2px dashed var(--accent);
            border-radius: var(--radius-lg);
            padding: 24px 22px;
            position: relative;
            transition: var(--transition);
            color: var(--white);
        }
        .coupon-card-main:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(0,229,160,0.15);
            border-color: var(--accent-dark);
        }
        .coupon-card-main .coupon-tag {
            position: absolute;
            top: -11px;
            left: 20px;
            background: var(--accent);
            color: var(--ink-deep);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }
        .coupon-card-main .coupon-project {
            font-size: 0.85rem;
            color: var(--text-dark-bg-muted);
            margin-bottom: 4px;
        }
        .coupon-card-main .coupon-matchup {
            font-size: 1.4rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin-bottom: 6px;
        }
        .coupon-card-main .coupon-time {
            font-size: 0.88rem;
            color: var(--accent);
            font-weight: 500;
            margin-bottom: 14px;
        }
        .coupon-card-main .coupon-action {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .coupon-card-main .coupon-action .btn {
            padding: 8px 16px;
            font-size: 0.85rem;
            border-radius: 8px;
        }
        .coupon-perforation {
            border-top: 1px dashed rgba(255,255,255,0.15);
            margin: 12px 0 8px;
            position: relative;
        }
        .coupon-perforation::before,
        .coupon-perforation::after {
            content: "";
            position: absolute;
            top: -7px;
            width: 14px;
            height: 14px;
            background: var(--ink-deep);
            border-radius: 50%;
        }
        .coupon-perforation::before {
            left: -8px;
        }
        .coupon-perforation::after {
            right: -8px;
        }
        .coupon-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        .coupon-card-mini {
            background: var(--ink-card);
            border: 1px dashed rgba(255,255,255,0.2);
            border-radius: var(--radius-md);
            padding: 14px 16px;
            color: var(--white);
            transition: var(--transition);
            position: relative;
        }
        .coupon-card-mini:hover {
            border-color: var(--accent);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(0,0,0,0.3);
        }
        .coupon-card-mini .coupon-project {
            font-size: 0.72rem;
            color: var(--text-dark-bg-muted);
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }
        .coupon-card-mini .coupon-matchup {
            font-size: 1rem;
            font-weight: 600;
            margin: 2px 0 6px;
        }
        .coupon-card-mini .coupon-time {
            font-size: 0.8rem;
            color: var(--accent);
        }
        .coupon-card-mini .coupon-btn-mini {
            position: absolute;
            right: 12px;
            bottom: 12px;
            font-size: 0.75rem;
            color: var(--accent);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            background: none;
            border: none;
            padding: 0;
        }
        .coupon-card-mini .coupon-btn-mini:hover {
            color: var(--accent-dark);
            text-decoration: underline;
        }

        /* ===== Content Calendar ===== */
        .calendar-scroll {
            display: flex;
            gap: 14px;
            overflow-x: auto;
            padding-bottom: 8px;
            scrollbar-width: thin;
            scrollbar-color: var(--border-light) transparent;
        }
        .calendar-scroll::-webkit-scrollbar {
            height: 5px;
        }
        .calendar-scroll::-webkit-scrollbar-thumb {
            background: var(--border-light);
            border-radius: 10px;
        }
        .calendar-day {
            flex: 0 0 180px;
            background: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 16px 14px;
            transition: var(--transition);
            cursor: default;
        }
        .calendar-day:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .calendar-day .cal-date {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--ink-soft);
            margin-bottom: 8px;
            letter-spacing: 0.03em;
        }
        .calendar-day .cal-event {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--ink-deep);
            margin-bottom: 4px;
        }
        .calendar-day .cal-match {
            font-size: 0.85rem;
            color: var(--ink-muted);
            margin-bottom: 6px;
        }
        .calendar-day .cal-tag {
            display: inline-block;
            font-size: 0.72rem;
            color: var(--accent-dark);
            background: rgba(0,229,160,0.1);
            padding: 3px 10px;
            border-radius: 20px;
            font-weight: 600;
        }

        /* ===== Hot Topics ===== */
        .topic-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .topic-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: 30px;
            background: var(--white);
            border: 1px solid var(--border-light);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--ink-body);
            transition: var(--transition);
            cursor: pointer;
        }
        .topic-chip:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }

        /* ===== Opinion / Deep Read ===== */
        .opinion-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 24px;
        }
        .opinion-main-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .opinion-main-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .opinion-main-card .opinion-img {
            height: 240px;
            overflow: hidden;
        }
        .opinion-main-card .opinion-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }
        .opinion-main-card:hover .opinion-img img {
            transform: scale(1.03);
        }
        .opinion-main-card .opinion-body {
            padding: 22px 26px 26px;
        }
        .opinion-main-card .opinion-body h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
        }
        .opinion-side-card {
            background: var(--white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 18px 20px;
            transition: var(--transition);
            margin-bottom: 12px;
            cursor: pointer;
        }
        .opinion-side-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }
        .opinion-side-card .side-label {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--violet);
            letter-spacing: 0.05em;
            margin-bottom: 6px;
        }
        .opinion-side-card h4 {
            font-size: 1rem;
            margin-bottom: 4px;
        }

        /* ===== News Section ===== */
        .news-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }
        .news-item {
            background: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--border-light);
            transform: translateY(-3px);
        }
        .news-item .news-date {
            font-size: 0.78rem;
            color: var(--ink-soft);
            letter-spacing: 0.03em;
            margin-bottom: 8px;
        }
        .news-item .news-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--ink-deep);
            margin-bottom: 6px;
            transition: var(--transition);
        }
        .news-item:hover .news-title {
            color: var(--accent-dark);
        }
        .news-item .news-excerpt {
            font-size: 0.9rem;
            color: var(--ink-muted);
            line-height: 1.7;
            flex-grow: 1;
            margin-bottom: 12px;
        }
        .btn-read-more {
            align-self: flex-start;
            padding: 7px 14px;
            font-size: 0.82rem;
            font-weight: 600;
            border-radius: 7px;
            background: var(--ink-deep);
            color: var(--white);
            border: 1px solid var(--ink-deep);
            transition: var(--transition);
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .btn-read-more:hover {
            background: var(--ink-card);
            border-color: var(--ink-card);
            color: var(--accent);
            transform: translateY(-2px);
        }

        /* ===== Media Selection ===== */
        .media-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .media-card {
            background: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            text-align: center;
            transition: var(--transition);
        }
        .media-card:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--accent);
            transform: translateY(-4px);
        }
        .media-card .media-logo {
            width: 56px;
            height: 56px;
            background: var(--bg);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 10px;
            font-size: 1.5rem;
            color: var(--ink-deep);
        }
        .media-card .media-name {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--ink-deep);
        }
        .media-card .media-desc {
            font-size: 0.8rem;
            color: var(--ink-soft);
            margin-top: 4px;
        }

        /* ===== Data Analysis ===== */
        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .data-block {
            text-align: center;
            padding: 28px 16px;
            background: var(--ink-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-dark);
            transition: var(--transition);
        }
        .data-block:hover {
            transform: translateY(-4px);
            border-color: var(--accent);
        }
        .data-block .data-num {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            letter-spacing: -0.02em;
        }
        .data-block .data-unit {
            font-size: 1rem;
            font-weight: 600;
            color: var(--accent);
            margin-left: 2px;
        }
        .data-block .data-label {
            font-size: 0.9rem;
            color: var(--text-dark-bg-muted);
            margin-top: 8px;
        }

        /* ===== Platform Guarantee ===== */
        .guarantee-row {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            justify-content: space-between;
            align-items: center;
            background: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
        }
        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .guarantee-item .guarantee-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(0,229,160,0.09);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--accent-dark);
            flex-shrink: 0;
        }
        .guarantee-item .guarantee-text {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--ink-deep);
        }

        /* ===== Brand Intro ===== */
        .brand-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .brand-intro-grid .brand-intro-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 340px;
        }
        .brand-intro-grid .brand-intro-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .brand-intro-grid .brand-intro-body h2 {
            margin-bottom: 16px;
        }
        .brand-intro-grid .brand-intro-body p {
            font-size: 1rem;
            line-height: 1.9;
            color: var(--ink-muted);
            margin-bottom: 12px;
        }

        /* ===== Service Matrix ===== */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .service-card {
            background: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            transition: var(--transition);
            text-align: left;
        }
        .service-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
            transform: translateY(-5px);
        }
        .service-card .service-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(0,229,160,0.09);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent-dark);
            margin-bottom: 14px;
        }
        .service-card h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }
        .service-card p {
            font-size: 0.9rem;
            color: var(--ink-muted);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .service-card .service-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-dark);
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .service-card .service-link:hover {
            text-decoration: underline;
        }

        /* ===== Hot Ranking ===== */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .ranking-item {
            background: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            transition: var(--transition);
        }
        .ranking-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--accent);
            transform: translateX(4px);
        }
        .ranking-item .rank-num {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--ink-soft);
            width: 44px;
            flex-shrink: 0;
            text-align: center;
        }
        .ranking-item:nth-child(1) .rank-num {
            color: var(--accent-dark);
        }
        .ranking-item:nth-child(2) .rank-num {
            color: var(--violet);
        }
        .ranking-item .rank-info {
            flex: 1;
        }
        .ranking-item .rank-info .rank-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--ink-deep);
            margin-bottom: 2px;
        }
        .ranking-item .rank-info .rank-desc {
            font-size: 0.82rem;
            color: var(--ink-soft);
        }
        .ranking-item .rank-metric {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--accent-dark);
            white-space: nowrap;
        }

        /* ===== Tactical Topics ===== */
        .tactical-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 22px;
        }
        .tactical-card {
            background: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
        }
        .tactical-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .tactical-card .tactical-img {
            height: 200px;
            overflow: hidden;
        }
        .tactical-card .tactical-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }
        .tactical-card:hover .tactical-img img {
            transform: scale(1.03);
        }
        .tactical-card .tactical-body {
            padding: 18px 22px 22px;
        }
        .tactical-card .tactical-body .tactical-tag {
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--violet);
            letter-spacing: 0.05em;
            margin-bottom: 8px;
        }
        .tactical-card .tactical-body h3 {
            font-size: 1.05rem;
            margin-bottom: 6px;
        }
        .tactical-card .tactical-body .tactical-reads {
            font-size: 0.8rem;
            color: var(--ink-soft);
        }

        /* ===== Partners ===== */
        .partners-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 18px;
        }
        .partner-logo {
            background: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px 12px;
            text-align: center;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            cursor: default;
            filter: grayscale(100%);
            opacity: 0.75;
        }
        .partner-logo:hover {
            filter: grayscale(0%);
            opacity: 1;
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
            transform: translateY(-3px);
        }
        .partner-logo .partner-icon {
            font-size: 2rem;
            color: var(--ink-deep);
        }
        .partner-logo .partner-name {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--ink-muted);
        }

        /* ===== Community Reviews ===== */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .review-card {
            background: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            transition: var(--transition);
        }
        .review-card:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--accent);
            transform: translateY(-4px);
        }
        .review-card .review-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--ink-card);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .review-card .review-text {
            font-size: 0.95rem;
            color: var(--ink-body);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .review-card .review-meta {
            font-size: 0.8rem;
            color: var(--ink-soft);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .review-card .review-meta .review-name {
            font-weight: 600;
            color: var(--ink-deep);
        }
        .review-card .review-meta .review-source {
            font-style: normal;
        }

        /* ===== Subscribe CTA ===== */
        .subscribe-section {
            background: var(--ink-deep);
            color: var(--white);
            padding: 64px 0;
        }
        .subscribe-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }
        .subscribe-section h2 {
            color: var(--white);
            margin-bottom: 12px;
        }
        .subscribe-section .subscribe-desc {
            color: var(--text-dark-bg-muted);
            font-size: 1rem;
            line-height: 1.75;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .subscribe-form input[type="email"] {
            flex: 1;
            min-width: 180px;
            padding: 13px 16px;
            border-radius: 10px;
            border: 1px solid var(--border-dark);
            background: var(--ink-card);
            color: var(--white);
            font-size: 0.95rem;
            outline: none;
            transition: var(--transition);
        }
        .subscribe-form input[type="email"]::placeholder {
            color: var(--text-dark-bg-muted);
        }
        .subscribe-form input[type="email"]:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(0,229,160,0.18);
        }
        .subscribe-form .btn-accent {
            flex-shrink: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--accent);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            color: var(--ink-deep);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--accent-dark);
        }
        .faq-question .faq-arrow {
            flex-shrink: 0;
            font-size: 0.9rem;
            color: var(--ink-soft);
            transition: transform 0.3s ease;
        }
        .faq-item.active .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent-dark);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            background: var(--bg);
            border-top: 0 solid var(--border-light);
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            border-top-width: 1px;
        }
        .faq-answer p {
            padding: 16px 22px;
            font-size: 0.92rem;
            color: var(--ink-muted);
            line-height: 1.75;
            margin: 0;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--ink-deep);
            color: var(--text-dark-bg-muted);
            padding: 56px 0 28px;
            border-top: 1px solid var(--border-dark);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand .brand-logo {
            color: var(--white);
            margin-bottom: 12px;
            font-size: 1.3rem;
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: var(--text-dark-bg-muted);
            margin-bottom: 16px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            border: 1px solid var(--border-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--text-dark-bg-muted);
            transition: var(--transition);
        }
        .footer-social a:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }
        .footer-col h4 {
            color: var(--white);
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 0.86rem;
            color: var(--text-dark-bg-muted);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            padding-top: 22px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.8rem;
        }
        .footer-bottom a {
            color: var(--text-dark-bg-muted);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .footer-bottom .footer-legal {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .opinion-grid {
                grid-template-columns: 1fr;
            }
            .media-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .partners-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .section-pad {
                padding: var(--section-pad-tablet);
            }
            .brand-actions .subscribe-btn-header {
                display: none;
            }
            .nav-trigger {
                display: flex;
            }
            .icon-nav {
                display: none;
            }
            .mobile-nav-overlay {
                display: block;
            }
            .hero-section {
                padding: 48px 0 56px;
            }
            .hero-h1 {
                font-size: 1.8rem;
            }
            .coupon-row {
                grid-template-columns: 1fr;
            }
            .news-list {
                grid-template-columns: 1fr;
            }
            .brand-intro-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .brand-intro-grid .brand-intro-img {
                height: 220px;
            }
            .tactical-grid {
                grid-template-columns: 1fr;
            }
            .reviews-grid {
                grid-template-columns: 1fr;
            }
            .subscribe-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .service-grid {
                grid-template-columns: 1fr;
            }
            .data-strip {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .guarantee-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
                padding: 20px;
            }
            .partners-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .ranking-item {
                flex-wrap: wrap;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .section-pad {
                padding: var(--section-pad-mobile);
            }
            .hero-h1 {
                font-size: 1.5rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-buttons {
                flex-direction: column;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .coupon-card-main .coupon-matchup {
                font-size: 1.15rem;
            }
            .coupon-card-main .coupon-action {
                flex-direction: column;
                align-items: stretch;
            }
            .media-grid {
                grid-template-columns: 1fr;
            }
            .data-block .data-num {
                font-size: 1.8rem;
            }
            .service-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
        }

/* roulang page: category1 */
:root {
            --ink-deep: #0E1116;
            --ink-card: #161A20;
            --ink-body: #2D323A;
            --ink-muted: #5A6470;
            --ink-soft: #6B7480;
            --accent: #00E5A0;
            --accent-dark: #00C78F;
            --violet: #7C5CFF;
            --bg: #F5F6F8;
            --white: #FFFFFF;
            --border-light: #E4E7ED;
            --border-dark: #2A313B;
            --text-dark-bg: #FFFFFF;
            --text-dark-bg-muted: #B0B8C2;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 4px 16px rgba(0,0,0,0.06);
            --shadow-hover: 0 4px 8px rgba(0,0,0,0.06), 0 12px 32px rgba(0,0,0,0.10);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition: all 0.2s ease-in-out;
            --section-pad-desktop: 80px 0;
            --section-pad-tablet: 64px 0;
            --section-pad-mobile: 48px 0;
            --container-max: 1200px;
        }
        html {
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--ink-body);
            background-color: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover, a:focus-visible {
            color: var(--accent-dark);
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .section-pad {
            padding: var(--section-pad-desktop);
        }
        .section-pad-sm {
            padding: 56px 0;
        }
        .section-dark {
            background: var(--ink-deep);
            color: var(--text-dark-bg);
        }
        .section-dark h1,
        .section-dark h2,
        .section-dark h3 {
            color: var(--text-dark-bg);
        }
        .section-alt {
            background: var(--white);
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-dark);
            margin-bottom: 12px;
        }
        .section-label::before {
            content: "";
            display: inline-block;
            width: 20px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .text-muted { color: var(--ink-muted); }
        .text-soft { color: var(--ink-soft); }
        .text-dark-muted { color: var(--text-dark-bg-muted); }
        .text-accent { color: var(--accent-dark); }
        .text-violet { color: var(--violet); }
        .lead {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--ink-muted);
        }
        .text-center { text-align: center; }

        /* Header */
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(0,0,0,0.04);
        }
        .brand-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            padding: 12px 0;
            gap: 16px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--ink-deep);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }
        .brand-logo .logo-mark {
            width: 38px;
            height: 38px;
            background: var(--ink-deep);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .brand-logo:hover { color: var(--ink-deep); }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-trigger {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid var(--border-light);
            background: var(--white);
            color: var(--ink-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-trigger:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
        }
        .subscribe-btn-header {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: 8px;
            background: var(--ink-deep);
            color: var(--white);
            font-size: 0.92rem;
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: var(--transition);
        }
        .subscribe-btn-header:hover {
            background: var(--accent-dark);
            color: var(--ink-deep);
            transform: translateY(-2px);
        }
        .nav-trigger {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border-light);
            background: var(--white);
            color: var(--ink-body);
            font-size: 1.1rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .icon-nav {
            background: var(--white);
            border-top: 1px solid var(--border-light);
        }
        .icon-nav-grid {
            display: grid;
            grid-template-columns: repeat(8, auto);
            gap: 4px;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
        }
        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            padding: 8px 12px;
            border-radius: 8px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--ink-muted);
            transition: var(--transition);
            min-width: 72px;
        }
        .nav-item .nav-icon {
            font-size: 1.3rem;
            color: var(--ink-soft);
        }
        .nav-item:hover {
            color: var(--accent-dark);
            background: rgba(0,229,160,0.05);
        }
        .nav-item:hover .nav-icon {
            color: var(--accent);
        }
        .nav-item.active {
            color: var(--accent-dark);
            background: rgba(0,229,160,0.08);
        }
        .nav-item.active .nav-icon {
            color: var(--accent);
        }
        .nav-item.active::after {
            content: "";
            display: block;
            width: 20px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            margin-top: 2px;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--ink-deep);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            color: var(--ink-deep);
        }
        .btn-secondary {
            background: transparent;
            color: var(--ink-body);
            border: 1px solid var(--border-light);
        }
        .btn-secondary:hover {
            background: var(--ink-deep);
            color: var(--white);
            border-color: var(--ink-deep);
            transform: translateY(-2px);
        }
        .btn-dark {
            background: var(--ink-deep);
            color: var(--white);
        }
        .btn-dark:hover {
            background: var(--accent-dark);
            color: var(--ink-deep);
            transform: translateY(-2px);
        }

        /* Category Page Header */
        .cat-header {
            background: var(--ink-deep);
            color: var(--text-dark-bg);
            padding: 48px 0 56px;
            position: relative;
            overflow: hidden;
        }
        .cat-header::before {
            content: "";
            position: absolute;
            top: -20%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0,229,160,0.12) 0%, transparent 65%);
            pointer-events: none;
        }
        .cat-header::after {
            content: "";
            position: absolute;
            bottom: -30%;
            left: -5%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(124,92,255,0.15) 0%, transparent 60%);
            pointer-events: none;
        }
        .cat-header .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-dark-bg-muted);
            margin-bottom: 20px;
        }
        .breadcrumb a {
            color: var(--text-dark-bg-muted);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .separator {
            color: #3A414A;
        }
        .cat-header h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 16px;
            line-height: 1.2;
        }
        .cat-header .cat-desc {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--text-dark-bg-muted);
            max-width: 720px;
            margin-bottom: 0;
        }

        /* Main Category Content */
        .cat-main {
            padding: var(--section-pad-desktop);
        }
        .cat-main .section-head {
            margin-bottom: 32px;
        }
        .section-head h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--ink-deep);
            margin-bottom: 8px;
        }
        .section-head p {
            color: var(--ink-muted);
            margin-bottom: 0;
        }

        /* Card Grid */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .content-card {
            background: var(--white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .content-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
        }
        .content-card .card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
        }
        .content-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .content-card:hover .card-img img {
            transform: scale(1.03);
        }
        .content-card .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: var(--ink-deep);
            font-size: 0.72rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 20px;
            letter-spacing: 0.03em;
        }
        .content-card .card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .content-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--ink-deep);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .content-card h3 a:hover {
            color: var(--accent-dark);
        }
        .content-card .card-date {
            font-size: 0.8rem;
            color: var(--ink-soft);
            margin-bottom: 8px;
        }
        .content-card .card-excerpt {
            font-size: 0.9rem;
            line-height: 1.7;
            color: var(--ink-muted);
            margin-bottom: 16px;
            flex-grow: 1;
        }
        .content-card .card-link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--accent-dark);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .content-card .card-link i {
            transition: transform 0.2s ease;
        }
        .content-card .card-link:hover i {
            transform: translateX(4px);
        }

        /* Featured Section */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .featured-card {
            background: var(--white);
            border-radius: var(--radius-md);
            padding: 18px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .featured-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .featured-card .fc-img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
        }
        .featured-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--ink-deep);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .featured-card .fc-meta {
            font-size: 0.78rem;
            color: var(--ink-soft);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .featured-card .fc-meta i {
            color: var(--accent-dark);
        }

        /* Stats Section */
        .stats-section {
            background: var(--ink-deep);
            color: var(--white);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .stat-item .stat-unit {
            font-size: 1rem;
            color: var(--accent);
            font-weight: 600;
            margin-left: 2px;
        }
        .stat-item .stat-label {
            font-size: 0.9rem;
            color: var(--text-dark-bg-muted);
        }

        /* Deep Dive Section */
        .deep-dive {
            background: var(--white);
        }
        .deep-dive-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            background: var(--bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .deep-dive-card .dd-img {
            height: 100%;
            min-height: 300px;
        }
        .deep-dive-card .dd-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .deep-dive-card .dd-body {
            padding: 36px;
        }
        .deep-dive-card .dd-tag {
            display: inline-block;
            background: var(--violet);
            color: var(--white);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 16px;
        }
        .deep-dive-card h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--ink-deep);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .deep-dive-card p {
            color: var(--ink-muted);
            margin-bottom: 20px;
        }

        /* Tag Chips */
        .tag-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 24px;
            background: var(--white);
            border: 1px solid var(--border-light);
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--ink-body);
            transition: var(--transition);
        }
        .chip:hover {
            border-color: var(--accent);
            background: rgba(0,229,160,0.06);
            color: var(--accent-dark);
            transform: translateY(-2px);
        }
        .chip i {
            color: var(--accent-dark);
            font-size: 0.8rem;
        }

        /* Subscribe CTA */
        .cta-section {
            background: var(--ink-deep);
            color: var(--white);
            padding: 56px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 50%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0,229,160,0.08) 0%, transparent 60%);
            transform: translateX(-50%);
            pointer-events: none;
        }
        .cta-inner {
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 40px;
            align-items: center;
        }
        .cta-inner h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 8px;
        }
        .cta-inner p {
            color: var(--text-dark-bg-muted);
            margin-bottom: 0;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            align-items: center;
        }
        .cta-form input[type="email"] {
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid var(--border-dark);
            background: var(--ink-card);
            color: var(--white);
            min-width: 280px;
            font-size: 0.95rem;
            outline: none;
            transition: var(--transition);
        }
        .cta-form input[type="email"]::placeholder {
            color: #5A6470;
        }
        .cta-form input[type="email"]:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(0,229,160,0.25);
        }
        .cta-form .btn-primary {
            white-space: nowrap;
        }

        /* Footer */
        .site-footer {
            background: var(--ink-deep);
            color: var(--text-dark-bg-muted);
            padding: 64px 0 24px;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 48px;
        }
        .footer-brand p {
            margin: 16px 0 20px;
            line-height: 1.8;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--ink-card);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-dark-bg-muted);
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--accent);
            color: var(--ink-deep);
            transform: translateY(-2px);
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 20px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-dark-bg-muted);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--ink-soft);
        }
        .footer-legal {
            display: flex;
            gap: 16px;
            align-items: center;
        }
        .footer-legal a {
            color: var(--ink-soft);
        }
        .footer-legal a:hover {
            color: var(--accent);
        }

        /* Responsive */
        @media screen and (min-width: 1024px) {
            .icon-nav-grid {
                grid-template-columns: repeat(8, auto);
            }
        }
        @media screen and (max-width: 1023px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
            .cta-inner {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media screen and (max-width: 767px) {
            .card-grid {
                grid-template-columns: 1fr;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .deep-dive-card {
                grid-template-columns: 1fr;
            }
            .deep-dive-card .dd-img {
                min-height: 200px;
            }
            .brand-actions .subscribe-btn-header {
                display: none;
            }
            .nav-trigger {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .icon-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: var(--white);
                border-bottom: 1px solid var(--border-light);
                box-shadow: 0 8px 24px rgba(0,0,0,0.08);
                z-index: 99;
            }
            .icon-nav.is-open {
                display: block;
            }
            .icon-nav-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
                padding: 16px;
            }
            .nav-item {
                flex-direction: row;
                gap: 10px;
                padding: 12px 16px;
                border: 1px solid var(--border-light);
                border-radius: 8px;
                min-width: auto;
                justify-content: flex-start;
            }
            .nav-item.active::after {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media screen and (max-width: 480px) {
            .cat-header h1 {
                font-size: 2rem;
            }
            .cta-form {
                flex-direction: column;
                width: 100%;
            }
            .cta-form input[type="email"] {
                min-width: 100%;
                width: 100%;
            }
            .btn {
                padding: 12px 20px;
            }
        }

/* roulang page: category3 */
:root {
            --ink-deep: #0E1116;
            --ink-card: #161A20;
            --ink-body: #2D323A;
            --ink-muted: #5A6470;
            --ink-soft: #6B7480;
            --accent: #00E5A0;
            --accent-dark: #00C78F;
            --violet: #7C5CFF;
            --bg: #F5F6F8;
            --white: #FFFFFF;
            --border-light: #E4E7ED;
            --border-dark: #2A313B;
            --text-dark-bg: #FFFFFF;
            --text-dark-bg-muted: #B0B8C2;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 4px 16px rgba(0,0,0,0.06);
            --shadow-hover: 0 4px 8px rgba(0,0,0,0.06), 0 12px 32px rgba(0,0,0,0.10);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition: all 0.2s ease-in-out;
            --section-pad-desktop: 80px 0;
            --section-pad-tablet: 64px 0;
            --section-pad-mobile: 48px 0;
            --container-max: 1200px;
        }

        html {
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--ink-body);
            background-color: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover,
        a:focus-visible {
            color: var(--accent-dark);
            outline: none;
        }

        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .section-pad {
            padding: var(--section-pad-desktop);
        }

        .section-pad-sm {
            padding: 56px 0;
        }

        .section-pad-xs {
            padding: 36px 0;
        }

        .section-dark {
            background: var(--ink-deep);
            color: var(--text-dark-bg);
        }

        .section-dark h1,
        .section-dark h2,
        .section-dark h3 {
            color: var(--text-dark-bg);
        }

        .section-alt {
            background: var(--white);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-dark);
            margin-bottom: 12px;
        }

        .section-label::before {
            content: "";
            display: inline-block;
            width: 20px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .text-muted {
            color: var(--ink-muted);
        }
        .text-soft {
            color: var(--ink-soft);
        }
        .text-dark-muted {
            color: var(--text-dark-bg-muted);
        }
        .text-accent {
            color: var(--accent-dark);
        }
        .text-violet {
            color: var(--violet);
        }
        .lead {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--ink-muted);
        }
        .text-center {
            text-align: center;
        }
        .mt-0 { margin-top: 0; }
        .mb-0 { margin-bottom: 0; }

        /* ===== Header ===== */
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(0,0,0,0.04);
        }

        .brand-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            padding: 12px 0;
            gap: 16px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--ink-deep);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }

        .brand-logo .logo-mark {
            width: 38px;
            height: 38px;
            background: var(--ink-deep);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .brand-logo:hover {
            color: var(--ink-deep);
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .search-trigger {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid var(--border-light);
            background: var(--white);
            color: var(--ink-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }

        .search-trigger:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
        }

        .subscribe-btn-header {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: 8px;
            background: var(--ink-deep);
            color: var(--white);
            font-size: 0.88rem;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .subscribe-btn-header:hover {
            background: var(--accent-dark);
            color: var(--ink-deep);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
        }

        .nav-trigger {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border-light);
            background: var(--white);
            color: var(--ink-deep);
            display: none;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
        }

        .nav-trigger:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
        }

        /* Icon Nav */
        .icon-nav {
            background: var(--ink-deep);
            padding: 10px 0;
            border-bottom: 1px solid var(--border-dark);
        }

        .icon-nav-grid {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 6px;
        }

        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            padding: 8px 10px;
            min-width: 72px;
            border-radius: var(--radius-sm);
            color: var(--text-dark-bg-muted);
            font-size: 0.78rem;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }

        .nav-item .nav-icon {
            font-size: 1.25rem;
            line-height: 1;
            color: var(--text-dark-bg-muted);
            transition: var(--transition);
        }

        .nav-item:hover,
        .nav-item:focus-visible {
            color: var(--accent);
            background: rgba(0, 229, 160, 0.08);
        }

        .nav-item:hover .nav-icon,
        .nav-item:focus-visible .nav-icon {
            color: var(--accent);
            transform: scale(1.1);
        }

        .nav-item.active {
            color: var(--accent);
            background: rgba(0, 229, 160, 0.1);
        }

        .nav-item.active .nav-icon {
            color: var(--accent);
        }

        .nav-item.active::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-bar {
            background: var(--bg);
            border-bottom: 1px solid var(--border-light);
            padding: 14px 0;
        }

        .breadcrumb {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--ink-soft);
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb li + li::before {
            content: "/";
            color: var(--border-light);
            margin-right: 8px;
        }

        .breadcrumb a {
            color: var(--ink-muted);
            font-weight: 500;
        }

        .breadcrumb a:hover {
            color: var(--accent-dark);
        }

        .breadcrumb .current {
            color: var(--ink-deep);
            font-weight: 600;
        }

        /* ===== Category Header ===== */
        .category-header {
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
            padding: 48px 0 40px;
        }

        .category-header h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--ink-deep);
            margin: 0 0 12px;
            letter-spacing: -0.01em;
            line-height: 1.15;
        }

        .category-header .cat-desc {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--ink-muted);
            max-width: 780px;
            margin: 0;
        }

        .cat-meta-row {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 16px;
        }

        .cat-meta-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            color: var(--ink-soft);
            background: var(--bg);
            padding: 6px 12px;
            border-radius: 20px;
            border: 1px solid var(--border-light);
        }

        .cat-meta-chip i {
            color: var(--accent-dark);
            font-size: 0.85rem;
        }

        /* ===== Guide Cards Grid ===== */
        .guide-grid-section {
            background: var(--bg);
        }

        .section-head-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 32px;
        }

        .section-head-row h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--ink-deep);
            margin: 0;
            line-height: 1.25;
        }

        .section-head-row .head-note {
            font-size: 0.88rem;
            color: var(--ink-soft);
        }

        .guide-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
            border: 1px solid var(--border-light);
        }

        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 229, 160, 0.3);
        }

        .guide-card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--ink-card);
        }

        .guide-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease-in-out;
        }

        .guide-card:hover .guide-card-img-wrap img {
            transform: scale(1.04);
        }

        .guide-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: var(--ink-deep);
            font-size: 0.72rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 20px;
            letter-spacing: 0.02em;
        }

        .guide-card-body {
            padding: 20px 20px 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .guide-card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--ink-deep);
            margin: 0 0 8px;
            line-height: 1.4;
            transition: var(--transition);
        }

        .guide-card:hover .guide-card-title {
            color: var(--accent-dark);
        }

        .guide-card-summary {
            font-size: 0.85rem;
            line-height: 1.65;
            color: var(--ink-muted);
            margin: 0 0 14px;
            flex: 1;
        }

        .guide-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            border-top: 1px solid var(--border-light);
            padding-top: 12px;
            font-size: 0.78rem;
            color: var(--ink-soft);
        }

        .guide-card-date {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .guide-card-date i {
            font-size: 0.75rem;
            color: var(--ink-soft);
        }

        .guide-card-read {
            color: var(--accent-dark);
            font-weight: 600;
            font-size: 0.8rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .guide-card-read i {
            transition: transform 0.2s ease;
        }

        .guide-card:hover .guide-card-read i {
            transform: translateX(3px);
        }

        /* ===== Featured Section ===== */
        .featured-section {
            background: var(--ink-deep);
        }

        .featured-section h2 {
            color: var(--text-dark-bg);
        }

        .featured-section .head-note {
            color: var(--text-dark-bg-muted);
        }

        .featured-card {
            background: var(--ink-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .featured-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 229, 160, 0.4);
            box-shadow: 0 8px 24px rgba(0,0,0,0.3);
        }

        .featured-card-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--ink-deep);
        }

        .featured-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .featured-card:hover .featured-card-img img {
            transform: scale(1.03);
        }

        .featured-card-body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .featured-card-eyebrow {
            font-size: 0.72rem;
            font-weight: 700;
            color: var(--violet);
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 6px;
        }

        .featured-card-title {
            font-size: 0.98rem;
            font-weight: 700;
            color: var(--text-dark-bg);
            line-height: 1.4;
            margin: 0 0 6px;
            transition: var(--transition);
        }

        .featured-card:hover .featured-card-title {
            color: var(--accent);
        }

        .featured-card-desc {
            font-size: 0.82rem;
            line-height: 1.6;
            color: var(--text-dark-bg-muted);
            margin: 0;
        }

        /* ===== Stats Strip ===== */
        .stats-section {
            background: var(--white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-item {
            text-align: center;
            padding: 20px 16px;
            background: var(--bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .stat-item:hover {
            border-color: rgba(0, 229, 160, 0.3);
            box-shadow: var(--shadow-sm);
        }

        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--ink-deep);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .stat-number .stat-unit {
            font-size: 1rem;
            font-weight: 600;
            color: var(--accent-dark);
            margin-left: 3px;
        }

        .stat-label {
            font-size: 0.82rem;
            color: var(--ink-muted);
            margin-top: 4px;
        }

        /* ===== Deep Dive ===== */
        .deepdive-section {
            background: var(--bg);
        }

        .deepdive-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            transition: var(--transition);
        }

        .deepdive-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 229, 160, 0.25);
        }

        .deepdive-img {
            position: relative;
            min-height: 320px;
            background: var(--ink-card);
            overflow: hidden;
        }

        .deepdive-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
            transition: transform 0.4s ease;
        }

        .deepdive-card:hover .deepdive-img img {
            transform: scale(1.03);
        }

        .deepdive-img .dd-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--violet);
            color: var(--white);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 5px 12px;
            border-radius: 20px;
            letter-spacing: 0.02em;
            z-index: 2;
        }

        .deepdive-body {
            padding: 36px 36px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .deepdive-body h3 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--ink-deep);
            margin: 0 0 12px;
            line-height: 1.3;
        }

        .deepdive-body p {
            font-size: 0.95rem;
            line-height: 1.8;
            color: var(--ink-muted);
            margin: 0 0 18px;
        }

        .deepdive-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--ink-soft);
            flex-wrap: wrap;
        }

        .deepdive-meta i {
            color: var(--accent-dark);
        }

        /* ===== Tags Section ===== */
        .tags-section {
            background: var(--white);
            border-top: 1px solid var(--border-light);
        }

        .tags-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .tag-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 30px;
            background: var(--bg);
            border: 1px solid var(--border-light);
            color: var(--ink-muted);
            font-size: 0.88rem;
            font-weight: 500;
            transition: var(--transition);
            cursor: pointer;
        }

        .tag-chip i {
            color: var(--accent-dark);
            font-size: 0.78rem;
        }

        .tag-chip:hover {
            background: var(--ink-deep);
            color: var(--accent);
            border-color: var(--ink-deep);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        /* ===== CTA Subscribe ===== */
        .cta-subscribe {
            background: var(--ink-deep);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
            position: relative;
            overflow: hidden;
        }

        .cta-subscribe::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(0, 229, 160, 0.15), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-subscribe .cta-text h3 {
            color: var(--text-dark-bg);
            font-size: 1.4rem;
            font-weight: 800;
            margin: 0 0 8px;
            line-height: 1.3;
        }

        .cta-subscribe .cta-text p {
            color: var(--text-dark-bg-muted);
            font-size: 0.92rem;
            margin: 0;
            line-height: 1.7;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .cta-form input[type="email"] {
            width: 280px;
            max-width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-dark);
            background: var(--ink-card);
            color: var(--text-dark-bg);
            font-size: 0.92rem;
            outline: none;
            transition: var(--transition);
        }

        .cta-form input[type="email"]::placeholder {
            color: var(--text-dark-bg-muted);
        }

        .cta-form input[type="email"]:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(0, 229, 160, 0.2);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            background: var(--accent);
            color: var(--ink-deep);
            font-size: 0.92rem;
            font-weight: 700;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 229, 160, 0.3);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--ink-deep);
            color: var(--text-dark-bg-muted);
            padding: 56px 0 24px;
            border-top: 1px solid var(--border-dark);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand .brand-logo {
            color: var(--text-dark-bg);
            margin-bottom: 14px;
        }

        .footer-brand .brand-logo:hover {
            color: var(--text-dark-bg);
        }

        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.75;
            color: var(--text-dark-bg-muted);
            margin: 0 0 18px;
            max-width: 320px;
        }

        .footer-social {
            display: flex;
            gap: 10px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--ink-card);
            border: 1px solid var(--border-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-dark-bg-muted);
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--accent);
            color: var(--ink-deep);
            border-color: var(--accent);
            transform: translateY(-2px);
        }

        .footer-col h4 {
            color: var(--text-dark-bg);
            font-size: 0.95rem;
            font-weight: 700;
            margin: 0 0 16px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: var(--text-dark-bg-muted);
            font-size: 0.88rem;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid var(--border-dark);
            font-size: 0.78rem;
            color: var(--ink-soft);
        }

        .footer-legal {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-legal a {
            color: var(--ink-soft);
            font-size: 0.78rem;
        }

        .footer-legal a:hover {
            color: var(--accent);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            :root {
                --section-pad-desktop: 64px 0;
            }
            .icon-nav-grid {
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .deepdive-card {
                grid-template-columns: 1fr;
            }
            .deepdive-img {
                min-height: 220px;
            }
            .deepdive-body {
                padding: 24px 24px 20px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad-desktop: 48px 0;
                --section-pad-tablet: 48px 0;
            }
            .subscribe-btn-header span {
                display: none;
            }
            .subscribe-btn-header {
                padding: 9px 12px;
                font-size: 0.85rem;
            }
            .nav-trigger {
                display: flex;
            }
            .icon-nav-grid {
                display: none;
                flex-direction: column;
                align-items: stretch;
                padding: 12px 0;
            }
            .icon-nav-grid.open {
                display: flex;
            }
            .nav-item {
                flex-direction: row;
                align-items: center;
                gap: 10px;
                padding: 12px 14px;
                min-width: auto;
                font-size: 0.9rem;
            }
            .nav-item .nav-icon {
                font-size: 1.1rem;
                width: 24px;
                text-align: center;
            }
            .nav-item.active::after {
                display: none;
            }
            .nav-item.active {
                background: rgba(0, 229, 160, 0.12);
                border-left: 3px solid var(--accent);
            }
            .category-header h1 {
                font-size: 2rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .cta-subscribe {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 22px;
            }
            .cta-form {
                width: 100%;
                flex-direction: column;
                align-items: stretch;
            }
            .cta-form input[type="email"] {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .section-head-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .brand-logo {
                font-size: 1.25rem;
            }
            .brand-logo .logo-mark {
                width: 32px;
                height: 32px;
                font-size: 0.95rem;
                border-radius: 8px;
            }
            .category-header h1 {
                font-size: 1.6rem;
            }
            .cat-desc {
                font-size: 0.95rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .deepdive-img {
                min-height: 180px;
            }
            .deepdive-body h3 {
                font-size: 1.2rem;
            }
            .deepdive-body p {
                font-size: 0.88rem;
            }
            .cta-subscribe .cta-text h3 {
                font-size: 1.15rem;
            }
            .btn-primary {
                width: 100%;
                justify-content: center;
            }
            .guide-card-title {
                font-size: 0.95rem;
            }
        }

/* roulang page: category2 */
:root {
            --ink-deep: #0E1116;
            --ink-card: #161A20;
            --ink-body: #2D323A;
            --ink-muted: #5A6470;
            --ink-soft: #6B7480;
            --accent: #00E5A0;
            --accent-dark: #00C78F;
            --violet: #7C5CFF;
            --bg: #F5F6F8;
            --white: #FFFFFF;
            --border-light: #E4E7ED;
            --border-dark: #2A313B;
            --text-dark-bg: #FFFFFF;
            --text-dark-bg-muted: #B0B8C2;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 4px 16px rgba(0,0,0,0.06);
            --shadow-hover: 0 4px 8px rgba(0,0,0,0.06), 0 12px 32px rgba(0,0,0,0.10);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition: all 0.2s ease-in-out;
            --section-pad-desktop: 80px 0;
            --section-pad-tablet: 64px 0;
            --section-pad-mobile: 48px 0;
            --container-max: 1200px;
        }

        html {
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--ink-body);
            background-color: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover, a:focus-visible {
            color: var(--accent-dark);
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .section-pad {
            padding: var(--section-pad-desktop);
        }
        .section-pad-sm {
            padding: 56px 0;
        }
        .section-dark {
            background: var(--ink-deep);
            color: var(--text-dark-bg);
        }
        .section-dark h1,
        .section-dark h2,
        .section-dark h3 {
            color: var(--text-dark-bg);
        }
        .section-alt {
            background: var(--white);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-dark);
            margin-bottom: 12px;
        }
        .section-label::before {
            content: "";
            display: inline-block;
            width: 20px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .text-muted { color: var(--ink-muted); }
        .text-soft { color: var(--ink-soft); }
        .text-dark-muted { color: var(--text-dark-bg-muted); }
        .text-accent { color: var(--accent-dark); }
        .text-violet { color: var(--violet); }
        .lead {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--ink-muted);
        }
        .text-center { text-align: center; }

        /* Header */
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(0,0,0,0.04);
        }
        .brand-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            padding: 12px 0;
            gap: 16px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--ink-deep);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }
        .brand-logo .logo-mark {
            width: 38px;
            height: 38px;
            background: var(--ink-deep);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .brand-logo:hover {
            color: var(--ink-deep);
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-trigger {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid var(--border-light);
            background: var(--white);
            color: var(--ink-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-trigger:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
        }
        .subscribe-btn-header {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: 8px;
            background: var(--ink-deep);
            color: var(--white);
            font-size: 0.9rem;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .subscribe-btn-header:hover {
            background: var(--accent-dark);
            color: var(--ink-deep);
            transform: translateY(-2px);
        }
        .nav-trigger {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border-light);
            background: var(--white);
            color: var(--ink-deep);
            display: none;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            font-size: 1.2rem;
        }
        .nav-trigger:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
        }

        .icon-nav {
            border-top: 1px solid var(--border-light);
            background: var(--white);
        }
        .icon-nav .container {
            display: flex;
            align-items: stretch;
        }
        .icon-nav-grid {
            display: flex;
            align-items: stretch;
            width: 100%;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border-light) transparent;
            gap: 0;
        }
        .icon-nav-grid::-webkit-scrollbar {
            height: 4px;
        }
        .icon-nav-grid::-webkit-scrollbar-thumb {
            background: var(--border-light);
            border-radius: 2px;
        }
        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 6px;
            min-width: 90px;
            padding: 14px 16px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--ink-muted);
            border-bottom: 2px solid transparent;
            text-align: center;
            flex-shrink: 0;
            transition: var(--transition);
            cursor: pointer;
        }
        .nav-item .nav-icon {
            font-size: 1.25rem;
            color: var(--ink-soft);
            transition: var(--transition);
        }
        .nav-item:hover {
            color: var(--accent-dark);
            border-bottom-color: var(--accent);
        }
        .nav-item:hover .nav-icon {
            color: var(--accent-dark);
        }
        .nav-item.active {
            color: var(--accent-dark);
            border-bottom-color: var(--accent);
            font-weight: 600;
        }
        .nav-item.active .nav-icon {
            color: var(--accent-dark);
        }

        /* Breadcrumb & category page head */
        .category-head {
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
            padding: 36px 0 40px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--ink-soft);
            margin-bottom: 20px;
        }
        .breadcrumb a {
            color: var(--ink-muted);
        }
        .breadcrumb a:hover {
            color: var(--accent-dark);
        }
        .breadcrumb .separator {
            color: var(--border-light);
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: var(--ink-deep);
            font-weight: 600;
        }
        .category-title {
            font-size: 2.5rem;
            font-weight: 700;
            line-height: 1.2;
            color: var(--ink-deep);
            margin: 0 0 12px 0;
            letter-spacing: -0.01em;
        }
        .category-desc {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--ink-muted);
            max-width: 720px;
            margin: 0;
        }

        /* Card grid */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .card-grid.two-col {
            grid-template-columns: repeat(2, 1fr);
        }
        .card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            position: relative;
            cursor: pointer;
        }
        .card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
        }
        .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--ink-card);
        }
        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease-in-out;
        }
        .card:hover .card-img-wrap img {
            transform: scale(1.03);
        }
        .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(14,17,22,0.85);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            backdrop-filter: blur(4px);
        }
        .card-tag.violet {
            color: var(--violet);
            background: rgba(124,92,255,0.15);
        }
        .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-date {
            font-size: 0.78rem;
            color: var(--ink-soft);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .card-title-link {
            font-size: 1.15rem;
            font-weight: 600;
            line-height: 1.4;
            color: var(--ink-deep);
            margin-bottom: 10px;
            display: block;
        }
        .card-title-link:hover {
            color: var(--accent-dark);
        }
        .card-summary {
            font-size: 0.9rem;
            line-height: 1.65;
            color: var(--ink-muted);
            margin-bottom: 16px;
            flex: 1;
        }
        .card-readmore {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--accent-dark);
            align-self: flex-start;
        }
        .card-readmore:hover {
            gap: 10px;
            color: var(--accent-dark);
        }

        /* Featured section */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .featured-card {
            background: var(--white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .featured-card-img {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--ink-card);
        }
        .featured-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease-in-out;
        }
        .featured-card:hover .featured-card-img img {
            transform: scale(1.04);
        }
        .featured-badge {
            position: absolute;
            top: 10px;
            right: 10px;
            background: var(--accent);
            color: var(--ink-deep);
            font-size: 0.72rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 20px;
            letter-spacing: 0.03em;
        }
        .featured-card-body {
            padding: 16px 18px 18px;
        }
        .featured-card-body h3 {
            font-size: 1rem;
            font-weight: 600;
            line-height: 1.4;
            color: var(--ink-deep);
            margin: 0 0 6px 0;
        }
        .featured-card-body .featured-card-meta {
            font-size: 0.78rem;
            color: var(--ink-soft);
        }

        /* Stats bar */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-item {
            background: var(--white);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--ink-deep);
            line-height: 1.1;
            letter-spacing: -0.02em;
        }
        .stat-number .accent-plus {
            color: var(--accent-dark);
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--ink-muted);
            margin-top: 6px;
            font-weight: 500;
        }

        /* Deep dive card */
        .deep-dive-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            background: var(--ink-deep);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
        }
        .deep-dive-img {
            position: relative;
            min-height: 320px;
            background: var(--ink-card);
            overflow: hidden;
        }
        .deep-dive-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }
        .deep-dive-body {
            padding: 36px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .deep-dive-tag {
            display: inline-block;
            background: rgba(0,229,160,0.15);
            color: var(--accent);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 14px;
            align-self: flex-start;
            letter-spacing: 0.04em;
        }
        .deep-dive-body h2 {
            font-size: 1.6rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark-bg);
            margin: 0 0 12px 0;
        }
        .deep-dive-body p {
            font-size: 0.95rem;
            line-height: 1.75;
            color: var(--text-dark-bg-muted);
            margin: 0 0 20px 0;
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 22px;
            border-radius: 8px;
            border: 1px solid rgba(255,255,255,0.4);
            color: var(--white);
            font-size: 0.95rem;
            font-weight: 600;
            background: transparent;
            transition: var(--transition);
            align-self: flex-start;
        }
        .btn-outline-light:hover {
            background: var(--accent);
            color: var(--ink-deep);
            border-color: var(--accent);
            transform: translateY(-2px);
        }

        /* Tags chips */
        .tags-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .tag-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 30px;
            background: var(--white);
            border: 1px solid var(--border-light);
            color: var(--ink-muted);
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
            cursor: pointer;
        }
        .tag-chip:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
            background: rgba(0,229,160,0.05);
            transform: translateY(-2px);
        }
        .tag-chip .chip-icon {
            font-size: 0.85rem;
            color: var(--violet);
        }
        .tag-chip:hover .chip-icon {
            color: var(--accent-dark);
        }

        /* CTA section */
        .cta-box {
            background: var(--ink-deep);
            border-radius: var(--radius-lg);
            padding: 42px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            flex-wrap: wrap;
        }
        .cta-box-left h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-dark-bg);
            margin: 0 0 8px 0;
        }
        .cta-box-left p {
            font-size: 0.95rem;
            color: var(--text-dark-bg-muted);
            margin: 0;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }
        .cta-form input[type="email"] {
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid rgba(255,255,255,0.25);
            background: rgba(255,255,255,0.08);
            color: var(--white);
            font-size: 0.95rem;
            min-width: 260px;
            transition: var(--transition);
            outline: none;
        }
        .cta-form input[type="email"]::placeholder {
            color: rgba(255,255,255,0.5);
        }
        .cta-form input[type="email"]:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(0,229,160,0.25);
            background: rgba(255,255,255,0.12);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 8px;
            background: var(--accent);
            color: var(--ink-deep);
            font-size: 0.95rem;
            font-weight: 700;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background: var(--ink-deep);
            color: var(--text-dark-bg-muted);
            padding-top: 64px;
            padding-bottom: 0;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .brand-logo {
            color: var(--white);
            margin-bottom: 16px;
            font-size: 1.4rem;
        }
        .footer-brand .brand-logo .logo-mark {
            background: rgba(255,255,255,0.1);
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: var(--text-dark-bg-muted);
            margin: 0 0 18px 0;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            border: 1px solid rgba(255,255,255,0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-dark-bg-muted);
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-3px);
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-dark-bg);
            margin: 0 0 16px 0;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul a {
            font-size: 0.88rem;
            color: var(--text-dark-bg-muted);
            transition: var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--ink-soft);
        }
        .footer-legal {
            display: flex;
            gap: 18px;
        }
        .footer-legal a {
            color: var(--ink-soft);
            font-size: 0.8rem;
        }
        .footer-legal a:hover {
            color: var(--accent);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1.4fr 1fr 1fr;
            }
            .deep-dive-card {
                grid-template-columns: 1fr;
            }
            .deep-dive-img {
                min-height: 240px;
            }
            .deep-dive-body {
                padding: 28px 24px;
            }
            .category-title {
                font-size: 2.1rem;
            }
        }

        @media (max-width: 768px) {
            .section-pad {
                padding: var(--section-pad-tablet);
            }
            .section-pad-sm {
                padding: 40px 0;
            }
            .brand-bar {
                min-height: 60px;
                padding: 10px 0;
            }
            .brand-logo {
                font-size: 1.25rem;
                gap: 8px;
            }
            .brand-logo .logo-mark {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
                border-radius: 8px;
            }
            .subscribe-btn-header {
                padding: 7px 14px;
                font-size: 0.82rem;
            }
            .search-trigger {
                width: 36px;
                height: 36px;
            }
            .nav-trigger {
                display: flex;
                width: 36px;
                height: 36px;
            }
            .icon-nav {
                display: none;
                border-top: 1px solid var(--border-light);
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            }
            .icon-nav.open {
                display: block;
                max-height: 420px;
            }
            .icon-nav .container {
                padding: 12px 20px 16px;
            }
            .icon-nav-grid {
                display: grid;
                grid-template-columns: repeat(4, 1fr);
                gap: 14px;
                overflow: visible;
            }
            .nav-item {
                min-width: 0;
                padding: 10px 6px;
                flex-shrink: 1;
                border-bottom: none;
                border-radius: var(--radius-sm);
                background: var(--bg);
                min-height: 64px;
            }
            .nav-item.active {
                background: rgba(0,229,160,0.1);
            }
            .nav-item .nav-icon {
                font-size: 1.1rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .card-grid.two-col {
                grid-template-columns: 1fr;
            }
            .featured-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-item {
                padding: 18px 14px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .deep-dive-body h2 {
                font-size: 1.3rem;
            }
            .tags-wrap {
                gap: 10px;
            }
            .tag-chip {
                padding: 8px 14px;
                font-size: 0.82rem;
            }
            .cta-box {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 22px;
            }
            .cta-box-left h3 {
                font-size: 1.25rem;
            }
            .cta-form {
                width: 100%;
                flex-direction: column;
                align-items: stretch;
            }
            .cta-form input[type="email"] {
                min-width: 0;
                width: 100%;
            }
            .btn-primary {
                justify-content: center;
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .category-head {
                padding: 24px 0 28px;
            }
            .category-title {
                font-size: 1.8rem;
            }
            .category-desc {
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .section-pad {
                padding: var(--section-pad-mobile);
            }
            .brand-bar {
                gap: 10px;
            }
            .subscribe-btn-header span {
                display: none;
            }
            .subscribe-btn-header {
                padding: 7px 10px;
                font-size: 0.9rem;
            }
            .icon-nav-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 10px;
            }
            .nav-item {
                font-size: 0.78rem;
                min-height: 58px;
                padding: 8px 4px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .stat-label {
                font-size: 0.75rem;
            }
            .card-body {
                padding: 16px 16px 18px;
            }
            .card-title-link {
                font-size: 1.05rem;
            }
            .deep-dive-body {
                padding: 20px 16px;
            }
            .deep-dive-body h2 {
                font-size: 1.15rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-brand {
                grid-column: auto;
            }
            .category-title {
                font-size: 1.5rem;
            }
            .breadcrumb {
                font-size: 0.78rem;
                gap: 6px;
            }
        }

/* roulang page: category5 */
:root {
      --ink-deep: #0E1116;
      --ink-card: #161A20;
      --ink-body: #2D323A;
      --ink-muted: #5A6470;
      --ink-soft: #6B7480;
      --accent: #00E5A0;
      --accent-dark: #00C78F;
      --violet: #7C5CFF;
      --bg: #F5F6F8;
      --white: #FFFFFF;
      --border-light: #E4E7ED;
      --border-dark: #2A313B;
      --text-dark-bg: #FFFFFF;
      --text-dark-bg-muted: #B0B8C2;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 4px 16px rgba(0,0,0,0.06);
      --shadow-hover: 0 4px 8px rgba(0,0,0,0.06), 0 12px 32px rgba(0,0,0,0.10);
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --transition: all 0.2s ease-in-out;
      --section-pad-desktop: 80px 0;
      --section-pad-tablet: 64px 0;
      --section-pad-mobile: 48px 0;
      --container-max: 1200px;
    }

    html {
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-stack);
      font-size: 16px;
      line-height: 1.75;
      color: var(--ink-body);
      background-color: var(--bg);
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }

    a:hover, a:focus-visible {
      color: var(--accent-dark);
      outline: none;
    }

    a:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 2px;
      border-radius: 4px;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    button, input, select, textarea {
      font-family: inherit;
      font-size: inherit;
      line-height: inherit;
    }

    .container {
      max-width: var(--container-max);
      margin: 0 auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    .section-pad {
      padding: var(--section-pad-desktop);
    }

    .section-pad-sm {
      padding: 56px 0;
    }

    .section-dark {
      background: var(--ink-deep);
      color: var(--text-dark-bg);
    }

    .section-dark h1,
    .section-dark h2,
    .section-dark h3 {
      color: var(--text-dark-bg);
    }

    .section-alt {
      background: var(--white);
    }

    .section-label {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.82rem;
      font-weight: 600;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      color: var(--accent-dark);
      margin-bottom: 12px;
    }

    .section-label::before {
      content: "";
      display: inline-block;
      width: 20px;
      height: 2px;
      background: var(--accent);
      border-radius: 2px;
    }

    .text-muted { color: var(--ink-muted); }
    .text-soft { color: var(--ink-soft); }
    .text-dark-muted { color: var(--text-dark-bg-muted); }
    .text-accent { color: var(--accent-dark); }
    .text-violet { color: var(--violet); }

    .lead {
      font-size: 1.05rem;
      line-height: 1.85;
      color: var(--ink-muted);
    }

    .text-center { text-align: center; }

    /* ===== Header ===== */
    .site-header {
      background: var(--white);
      border-bottom: 1px solid var(--border-light);
      position: sticky;
      top: 0;
      z-index: 100;
      box-shadow: 0 1px 4px rgba(0,0,0,0.04);
    }

    .brand-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 68px;
      padding: 12px 0;
      gap: 16px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--ink-deep);
      letter-spacing: -0.02em;
      white-space: nowrap;
    }

    .brand-logo .logo-mark {
      width: 38px;
      height: 38px;
      background: var(--ink-deep);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      font-size: 1.1rem;
      flex-shrink: 0;
    }

    .brand-logo:hover {
      color: var(--ink-deep);
    }

    .brand-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .search-trigger {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      border: 1px solid var(--border-light);
      background: var(--white);
      color: var(--ink-muted);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: var(--transition);
    }

    .search-trigger:hover {
      border-color: var(--accent);
      color: var(--accent-dark);
    }

    .subscribe-btn-header {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 9px 18px;
      border-radius: 8px;
      background: var(--ink-deep);
      color: var(--white);
      font-weight: 600;
      font-size: 0.95rem;
      border: none;
      cursor: pointer;
      transition: var(--transition);
    }

    .subscribe-btn-header:hover {
      background: var(--ink-card);
      color: var(--accent);
    }

    .nav-trigger {
      display: none;
      width: 40px;
      height: 40px;
      border-radius: 8px;
      border: 1px solid var(--border-light);
      background: var(--white);
      color: var(--ink-deep);
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
      cursor: pointer;
    }

    .icon-nav {
      background: var(--white);
      border-top: 1px solid var(--border-light);
    }

    .icon-nav-grid {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 8px;
      padding: 12px 0;
    }

    .nav-item {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 6px;
      padding: 6px 14px;
      min-height: 56px;
      border-radius: 10px;
      color: var(--ink-muted);
      font-size: 0.82rem;
      font-weight: 600;
      white-space: nowrap;
      transition: var(--transition);
      position: relative;
    }

    .nav-item .nav-icon {
      font-size: 1.25rem;
      line-height: 1;
    }

    .nav-item:hover {
      color: var(--accent-dark);
      background: #f0fbf7;
    }

    .nav-item.active {
      color: var(--accent-dark);
    }

    .nav-item.active::after {
      content: "";
      position: absolute;
      bottom: -1px;
      left: 50%;
      transform: translateX(-50%);
      width: 24px;
      height: 2px;
      background: var(--accent);
      border-radius: 2px;
    }

    /* ===== Category H1 ===== */
    .category-hero {
      background: var(--white);
      border-bottom: 1px solid var(--border-light);
      padding: 32px 0 28px;
    }

    .breadcrumb {
      font-size: 0.9rem;
      color: var(--ink-soft);
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 6px;
    }

    .breadcrumb a:hover {
      color: var(--accent-dark);
    }

    .breadcrumb .sep {
      color: #B9C1CC;
    }

    .category-hero h1 {
      font-size: 2.6rem;
      font-weight: 800;
      color: var(--ink-deep);
      letter-spacing: -0.02em;
      margin-bottom: 10px;
    }

    .category-hero .desc {
      font-size: 1.05rem;
      color: var(--ink-muted);
      max-width: 860px;
      line-height: 1.85;
    }

    /* ===== Article Card Grid ===== */
    .article-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }

    .article-card {
      background: var(--white);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      height: 100%;
      transition: var(--transition);
      border: 1px solid var(--border-light);
    }

    .article-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-6px);
      border-color: rgba(0,229,160,0.3);
    }

    .article-card .card-media {
      overflow: hidden;
      aspect-ratio: 16/9;
      background: var(--ink-card);
    }

    .article-card .card-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.35s ease;
    }

    .article-card:hover .card-media img {
      transform: scale(1.03);
    }

    .article-card .card-body {
      padding: 22px 22px 24px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }

    .article-card .tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.78rem;
      font-weight: 600;
      color: var(--violet);
      background: rgba(124,92,255,0.08);
      border-radius: 30px;
      padding: 4px 12px;
      margin-bottom: 12px;
      width: fit-content;
    }

    .article-card .tag .dot {
      width: 6px;
      height: 6px;
      background: var(--violet);
      border-radius: 50%;
    }

    .article-card .date {
      font-size: 0.8rem;
      color: var(--ink-soft);
      margin-bottom: 8px;
    }

    .article-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--ink-deep);
      line-height: 1.4;
      margin-bottom: 12px;
    }

    .article-card p {
      font-size: 0.95rem;
      color: var(--ink-muted);
      line-height: 1.7;
      margin-bottom: 18px;
      flex: 1;
    }

    .btn-text {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-weight: 600;
      color: var(--accent-dark);
      font-size: 0.95rem;
    }

    .btn-text i {
      font-size: 0.85rem;
      transition: transform 0.2s ease;
    }

    .btn-text:hover {
      color: var(--ink-deep);
    }

    .btn-text:hover i {
      transform: translateX(4px);
    }

    /* ===== Featured strip ===== */
    .featured-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .featured-item {
      background: var(--white);
      border-radius: var(--radius-md);
      padding: 18px;
      border: 1px solid var(--border-light);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .featured-item:hover {
      border-color: rgba(0,229,160,0.5);
      box-shadow: var(--shadow-sm);
    }

    .featured-item .featured-title {
      font-size: 0.98rem;
      font-weight: 700;
      color: var(--ink-deep);
      line-height: 1.45;
    }

    .featured-item .featured-meta {
      font-size: 0.78rem;
      color: var(--ink-soft);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* ===== Stats ===== */
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .stat-block {
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: var(--radius-md);
      padding: 26px 18px;
      text-align: center;
      transition: var(--transition);
    }

    .stat-block:hover {
      background: rgba(255,255,255,0.08);
      border-color: rgba(0,229,160,0.35);
    }

    .stat-block .stat-number {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--accent);
      line-height: 1.2;
      letter-spacing: -0.02em;
    }

    .stat-block .stat-label {
      font-size: 0.85rem;
      color: var(--text-dark-bg-muted);
      margin-top: 6px;
    }

    /* ===== Deep topics ===== */
    .deep-topics {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }

    .deep-card {
      background: var(--white);
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .deep-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-6px);
    }

    .deep-card .deep-media {
      aspect-ratio: 16/9;
      background: var(--ink-card);
      overflow: hidden;
    }

    .deep-card .deep-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.35s ease;
    }

    .deep-card:hover .deep-media img {
      transform: scale(1.03);
    }

    .deep-card .deep-body {
      padding: 24px;
    }

    .deep-card .deep-tag {
      font-size: 0.78rem;
      font-weight: 700;
      color: var(--accent-dark);
      background: rgba(0,229,160,0.08);
      padding: 4px 10px;
      border-radius: 30px;
      display: inline-block;
      margin-bottom: 12px;
    }

    .deep-card h3 {
      font-size: 1.6rem;
      font-weight: 700;
      color: var(--ink-deep);
      margin-bottom: 10px;
      line-height: 1.35;
    }

    .deep-card p {
      color: var(--ink-muted);
      font-size: 0.96rem;
      line-height: 1.75;
    }

    /* ===== Tag chips ===== */
    .tag-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
    }

    .chip {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: var(--white);
      border: 1px solid var(--border-light);
      border-radius: 30px;
      padding: 10px 20px;
      font-weight: 600;
      color: var(--ink-deep);
      transition: var(--transition);
      font-size: 0.92rem;
    }

    .chip:hover {
      border-color: var(--accent);
      color: var(--accent-dark);
      transform: translateY(-2px);
    }

    /* ===== Subscribe CTA ===== */
    .subscribe-box {
      display: flex;
      align-items: center;
      gap: 40px;
      background: var(--ink-deep);
      border-radius: var(--radius-lg);
      padding: 36px 40px;
      flex-wrap: wrap;
    }

    .subscribe-box .subscribe-text {
      flex: 1;
    }

    .subscribe-box .subscribe-text h2 {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--white);
      margin-bottom: 8px;
    }

    .subscribe-box .subscribe-text p {
      color: var(--text-dark-bg-muted);
      font-size: 0.98rem;
    }

    .subscribe-form {
      display: flex;
      gap: 12px;
      flex: 1;
      min-width: 300px;
    }

    .subscribe-form input[type="email"] {
      flex: 1;
      padding: 14px 18px;
      border-radius: 8px;
      border: 1px solid var(--border-dark);
      background: var(--ink-card);
      color: var(--white);
      font-size: 0.95rem;
      outline: none;
      transition: var(--transition);
    }

    .subscribe-form input[type="email"]::placeholder {
      color: #7A8491;
    }

    .subscribe-form input[type="email"]:focus {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(0,229,160,0.18);
    }

    .btn-primary {
      background: var(--accent);
      color: var(--ink-deep);
      border: none;
      border-radius: 8px;
      padding: 14px 28px;
      font-weight: 700;
      font-size: 0.95rem;
      cursor: pointer;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-primary:hover {
      background: var(--accent-dark);
      transform: translateY(-2px);
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--ink-deep);
      color: var(--text-dark-bg-muted);
      padding-top: 56px;
      font-size: 0.92rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 32px;
      padding-bottom: 40px;
      border-bottom: 1px solid var(--border-dark);
    }

    .footer-brand .brand-logo {
      color: var(--white);
      margin-bottom: 14px;
    }

    .footer-brand .brand-logo .logo-mark {
      background: var(--ink-card);
    }

    .footer-brand p {
      color: var(--text-dark-bg-muted);
      line-height: 1.7;
      margin-bottom: 18px;
      font-size: 0.88rem;
    }

    .footer-social {
      display: flex;
      gap: 12px;
    }

    .footer-social a {
      width: 34px;
      height: 34px;
      border-radius: 50%;
      background: var(--ink-card);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-dark-bg-muted);
      transition: var(--transition);
      border: 1px solid var(--border-dark);
    }

    .footer-social a:hover {
      background: var(--accent);
      color: var(--ink-deep);
      border-color: var(--accent);
    }

    .footer-col h4 {
      color: var(--white);
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .footer-col ul {
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .footer-col li {
      margin-bottom: 10px;
    }

    .footer-col a {
      color: var(--text-dark-bg-muted);
      font-size: 0.9rem;
      transition: var(--transition);
    }

    .footer-col a:hover {
      color: var(--accent);
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      padding: 20px 0;
      flex-wrap: wrap;
      font-size: 0.8rem;
      color: var(--ink-soft);
    }

    .footer-legal {
      display: flex;
      gap: 18px;
    }

    .footer-legal a {
      color: var(--ink-soft);
    }

    .footer-legal a:hover {
      color: var(--accent);
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
      .article-grid,
      .deep-topics {
        grid-template-columns: repeat(2, 1fr);
      }
      .featured-row {
        grid-template-columns: repeat(2, 1fr);
      }
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .icon-nav-grid {
        gap: 4px;
      }
      .nav-item {
        padding: 6px 8px;
        font-size: 0.75rem;
      }
      .category-hero h1 {
        font-size: 2.2rem;
      }
    }

    @media (max-width: 768px) {
      :root {
        --section-pad-desktop: var(--section-pad-tablet);
      }
      .nav-trigger {
        display: flex;
      }
      .icon-nav-grid {
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 8px 0;
      }
      .icon-nav-grid.is-open {
        display: flex;
      }
      .nav-item {
        flex-direction: row;
        justify-content: flex-start;
        gap: 12px;
        padding: 12px 16px;
        min-height: 44px;
        border-bottom: 1px solid var(--border-light);
      }
      .nav-item:last-child {
        border-bottom: none;
      }
      .nav-item.active::after {
        left: 0;
        bottom: auto;
        top: 50%;
        transform: translateY(-50%);
        width: 3px;
        height: 24px;
      }
      .article-grid,
      .deep-topics {
        grid-template-columns: 1fr;
      }
      .featured-row {
        grid-template-columns: 1fr;
      }
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .subscribe-box {
        flex-direction: column;
        padding: 28px 24px;
      }
      .subscribe-form {
        flex-direction: column;
        min-width: 0;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 28px;
      }
      .brand-actions .subscribe-btn-header {
        display: none;
      }
      .category-hero h1 {
        font-size: 1.9rem;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding-left: 16px;
        padding-right: 16px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
      .brand-logo {
        font-size: 1.3rem;
      }
      .brand-logo .logo-mark {
        width: 32px;
        height: 32px;
        font-size: 0.95rem;
      }
      .article-card .card-body {
        padding: 18px;
      }
      .category-hero h1 {
        font-size: 1.6rem;
      }
      .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
      }
      .stat-block .stat-number {
        font-size: 1.8rem;
      }
    }

/* roulang page: category4 */
:root {
            --ink-deep: #0E1116;
            --ink-card: #161A20;
            --ink-body: #2D323A;
            --ink-muted: #5A6470;
            --ink-soft: #6B7480;
            --accent: #00E5A0;
            --accent-dark: #00C78F;
            --violet: #7C5CFF;
            --bg: #F5F6F8;
            --white: #FFFFFF;
            --border-light: #E4E7ED;
            --border-dark: #2A313B;
            --text-dark-bg: #FFFFFF;
            --text-dark-bg-muted: #B0B8C2;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 4px 16px rgba(0,0,0,0.06);
            --shadow-hover: 0 4px 8px rgba(0,0,0,0.06), 0 12px 32px rgba(0,0,0,0.10);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition: all 0.2s ease-in-out;
            --section-pad-desktop: 80px 0;
            --section-pad-tablet: 64px 0;
            --section-pad-mobile: 48px 0;
            --container-max: 1200px;
        }
        html {
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--ink-body);
            background-color: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover, a:focus-visible {
            color: var(--accent-dark);
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .section-pad {
            padding: var(--section-pad-desktop);
        }
        .section-pad-sm {
            padding: 56px 0;
        }
        .section-dark {
            background: var(--ink-deep);
            color: var(--text-dark-bg);
        }
        .section-dark h1,
        .section-dark h2,
        .section-dark h3 {
            color: var(--text-dark-bg);
        }
        .section-alt {
            background: var(--white);
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-dark);
            margin-bottom: 12px;
        }
        .section-label::before {
            content: "";
            display: inline-block;
            width: 20px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .text-muted { color: var(--ink-muted); }
        .text-soft { color: var(--ink-soft); }
        .text-dark-muted { color: var(--text-dark-bg-muted); }
        .text-accent { color: var(--accent-dark); }
        .text-violet { color: var(--violet); }
        .lead { font-size: 1.05rem; line-height: 1.85; color: var(--ink-muted); }
        .text-center { text-align: center; }
        h1, h2, h3, h4, h5, h6 {
            color: var(--ink-deep);
            font-weight: 700;
            line-height: 1.2;
            margin-top: 0;
        }
        .section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4 {
            color: var(--text-dark-bg);
        }
        h1 { font-size: 2.5rem; }
        h2 { font-size: 2rem; margin-bottom: 20px; }
        h3 { font-size: 1.35rem; }
        p { margin: 0 0 16px; }
        .mt-0 { margin-top: 0; }
        .mb-8 { margin-bottom: 8px; }
        .mb-16 { margin-bottom: 16px; }
        .mb-24 { margin-bottom: 24px; }
        .mb-40 { margin-bottom: 40px; }
        .mt-24 { margin-top: 24px; }
        .mt-40 { margin-top: 40px; }

        /* ===== Header ===== */
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(0,0,0,0.04);
        }
        .brand-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            padding: 12px 0;
            gap: 16px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--ink-deep);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }
        .brand-logo .logo-mark {
            width: 38px;
            height: 38px;
            background: var(--ink-deep);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .brand-logo:hover { color: var(--ink-deep); }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-trigger {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid var(--border-light);
            background: var(--white);
            color: var(--ink-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-trigger:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
        }
        .subscribe-btn-header {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: 8px;
            background: var(--ink-deep);
            color: var(--white);
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .subscribe-btn-header:hover {
            background: var(--accent-dark);
            color: var(--white);
            transform: translateY(-1px);
        }
        .nav-trigger {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border-light);
            background: var(--white);
            color: var(--ink-muted);
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-trigger:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
        }

        /* Icon nav */
        .icon-nav {
            background: var(--white);
            border-top: 1px solid var(--border-light);
            padding: 10px 0;
        }
        .icon-nav-grid {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 6px;
            flex-wrap: wrap;
        }
        .nav-item {
            flex: 1 1 auto;
            min-width: 64px;
            text-align: center;
            padding: 10px 4px 12px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--ink-muted);
            border-bottom: 2px solid transparent;
            transition: var(--transition);
            position: relative;
        }
        .nav-item .nav-icon {
            font-size: 1.25rem;
            color: var(--ink-soft);
        }
        .nav-item:hover {
            color: var(--ink-deep);
            background: #F8F9FB;
        }
        .nav-item:hover .nav-icon {
            color: var(--accent-dark);
        }
        .nav-item.active {
            color: var(--accent-dark);
            border-bottom-color: var(--accent);
        }
        .nav-item.active .nav-icon {
            color: var(--accent-dark);
        }

        /* Mobile nav drawer */
        @media (max-width: 767px) {
            .nav-trigger { display: flex; align-items: center; justify-content: center; }
            .subscribe-btn-header { display: none; }
            .icon-nav {
                display: none;
                padding: 0;
                border-top: 1px solid var(--border-light);
            }
            .icon-nav.open {
                display: block;
                animation: slideDown 0.25s ease;
            }
            .icon-nav-grid {
                flex-direction: row;
                flex-wrap: wrap;
                align-items: stretch;
                justify-content: center;
                padding: 12px 0;
                gap: 4px;
            }
            .nav-item {
                flex: 0 0 calc(33.333% - 8px);
                min-width: 0;
                border-bottom: 1px solid var(--border-light);
                border-radius: 8px;
                padding: 14px 4px;
                background: #FAFBFD;
                margin-bottom: 4px;
            }
            .nav-item.active {
                background: rgba(0,229,160,0.08);
                border-bottom-color: var(--accent);
            }
        }
        @keyframes slideDown {
            from { opacity: 0; transform: translateY(-8px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--ink-deep);
            color: var(--text-dark-bg-muted);
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .brand-logo {
            color: var(--white);
            margin-bottom: 12px;
        }
        .footer-brand .brand-logo .logo-mark {
            background: var(--white);
            color: var(--ink-deep);
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.75;
            color: var(--text-dark-bg-muted);
            max-width: 280px;
        }
        .footer-social {
            display: flex;
            gap: 14px;
            margin-top: 16px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            color: var(--text-dark-bg-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--accent);
            color: var(--ink-deep);
        }
        .footer-col h4 {
            color: var(--white);
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-dark-bg-muted);
            font-size: 0.9rem;
        }
        .footer-col ul li a:hover { color: var(--accent); }
        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.8rem;
            color: var(--ink-soft);
        }
        .footer-legal {
            display: flex;
            gap: 16px;
        }
        .footer-legal a {
            color: var(--ink-soft);
            font-size: 0.8rem;
        }
        .footer-legal a:hover { color: var(--accent); }

        /* ===== Buttons & Cards ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 8px;
            border: 1px solid transparent;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--ink-deep);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            color: var(--ink-deep);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            border-color: rgba(255,255,255,0.4);
            color: var(--white);
        }
        .btn-outline:hover {
            background: rgba(255,255,255,0.08);
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 14px;
            font-size: 0.85rem;
        }
        .btn-link {
            background: none;
            border: none;
            color: var(--accent-dark);
            font-weight: 600;
            cursor: pointer;
            padding: 0;
        }
        .btn-link:hover {
            text-decoration: underline;
        }
        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 999px;
            background: #EEF0F3;
            color: var(--ink-muted);
            font-size: 0.8rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .chip:hover {
            background: var(--accent);
            color: var(--ink-deep);
            transform: translateY(-1px);
        }
        .card {
            background: var(--white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-8px);
        }
        .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: #EDEFF2;
        }
        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }
        .card:hover .card-img-wrap img {
            transform: scale(1.03);
        }
        .card-body {
            padding: 18px 18px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .card-tag {
            display: inline-flex;
            align-items: center;
            padding: 3px 10px;
            border-radius: 6px;
            background: rgba(0,229,160,0.10);
            color: #009C78;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: 10px;
            width: fit-content;
        }
        .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            line-height: 1.45;
            color: var(--ink-deep);
            margin-bottom: 8px;
        }
        .card-title a:hover { color: var(--accent-dark); }
        .card-summary {
            font-size: 0.85rem;
            line-height: 1.65;
            color: var(--ink-muted);
            margin-bottom: 14px;
        }
        .card-footer {
            margin-top: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            font-size: 0.75rem;
            color: var(--ink-soft);
            border-top: 1px solid var(--border-light);
            padding-top: 12px;
        }
        .card-link {
            font-weight: 600;
            color: var(--accent-dark);
            font-size: 0.8rem;
        }
        .card-link:hover {
            text-decoration: underline;
        }
        .grid {
            display: grid;
            gap: 24px;
        }
        .grid-2 { grid-template-columns: repeat(2, 1fr); }
        .grid-3 { grid-template-columns: repeat(3, 1fr); }
        .grid-4 { grid-template-columns: repeat(4, 1fr); }
        .grid-stat { grid-template-columns: repeat(4, 1fr); }

        /* ===== Page specific ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--ink-soft);
            margin-bottom: 18px;
            flex-wrap: wrap;
        }
        .breadcrumb a { color: var(--ink-muted); }
        .breadcrumb a:hover { color: var(--accent-dark); }
        .breadcrumb .separator { color: #C2C7CF; }
        .category-hero {
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
            padding: 40px 0;
        }
        .category-hero h1 {
            font-size: 2.6rem;
            margin-bottom: 12px;
        }
        .category-hero .category-desc {
            font-size: 1.05rem;
            color: var(--ink-muted);
            max-width: 820px;
            line-height: 1.8;
        }
        .stat-card {
            background: var(--ink-card);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            text-align: center;
            color: var(--text-dark-bg);
            border: 1px solid var(--border-dark);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.1;
            letter-spacing: -0.02em;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-dark-bg-muted);
            margin-top: 6px;
        }
        .deep-feature {
            background: var(--ink-deep);
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: flex;
            flex-wrap: wrap;
            align-items: stretch;
            color: var(--text-dark-bg);
            border: 1px solid var(--border-dark);
        }
        .deep-feature-img {
            flex: 1 1 45%;
            min-height: 260px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .deep-feature-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(14,17,22,0.9) 0%, rgba(14,17,22,0.2) 100%);
        }
        .deep-feature-content {
            flex: 1 1 55%;
            padding: 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            z-index: 1;
        }
        .deep-feature-content h3 {
            color: var(--white);
            font-size: 1.6rem;
            margin-bottom: 10px;
        }
        .deep-feature-content p {
            color: var(--text-dark-bg-muted);
            font-size: 0.95rem;
            line-height: 1.75;
            margin-bottom: 18px;
        }
        .faq-item {
            background: var(--white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            margin-bottom: 14px;
            overflow: hidden;
            border: 1px solid var(--border-light);
        }
        .faq-question {
            padding: 18px 20px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--ink-deep);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            background: var(--white);
            transition: var(--transition);
        }
        .faq-question:hover { color: var(--accent-dark); }
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.25s ease;
            background: #F8F9FB;
            color: var(--ink-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            border-top: 0 solid var(--border-light);
        }
        .faq-item.active .faq-answer {
            padding: 16px 20px 20px;
            max-height: 300px;
            border-top: 1px solid var(--border-light);
        }
        .faq-item.active .faq-question {
            background: rgba(0,229,160,0.06);
        }
        .faq-arrow {
            transition: transform 0.25s ease;
            color: var(--accent-dark);
        }
        .faq-item.active .faq-arrow {
            transform: rotate(45deg);
        }
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .cta-strip {
            background: var(--ink-deep);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            color: var(--text-dark-bg);
            border: 1px solid var(--border-dark);
        }
        .cta-strip h3 {
            color: var(--white);
            font-size: 1.5rem;
            margin-bottom: 8px;
        }
        .cta-strip p {
            color: var(--text-dark-bg-muted);
            margin: 0;
            max-width: 560px;
        }
        .cta-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .cta-form input {
            border-radius: 8px;
            border: 1px solid var(--border-dark);
            background: rgba(255,255,255,0.08);
            padding: 12px 16px;
            color: var(--white);
            min-width: 260px;
            flex: 1;
        }
        .cta-form input:focus {
            outline: 2px solid var(--accent);
            border-color: var(--accent);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .section-pad { padding: var(--section-pad-tablet); }
            .grid-4, .grid-stat { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .brand-action-text { display: none; }
        }
        @media (max-width: 767px) {
            :root {
                --section-pad-desktop: 48px 0;
                --section-pad-tablet: 48px 0;
                --section-pad-mobile: 40px 0;
            }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
            .category-hero h1 { font-size: 2.2rem; }
            .grid-2, .grid-3, .grid-4, .grid-stat { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .deep-feature { flex-direction: column; }
            .deep-feature-img { min-height: 200px; flex: 1 1 100%; }
            .deep-feature-content { flex: 1 1 100%; padding: 24px 20px; }
            .cta-strip { flex-direction: column; align-items: flex-start; }
            .cta-form { width: 100%; }
            .cta-form input { min-width: 100%; }
            .stat-number { font-size: 1.8rem; }
        }
        @media (max-width: 480px) {
            .brand-logo { font-size: 1.2rem; }
            .brand-logo .logo-mark { width: 32px; height: 32px; font-size: 0.9rem; }
            .search-trigger, .nav-trigger { width: 34px; height: 34px; }
            .section-pad-sm { padding: 32px 0; }
        }

/* roulang page: category6 */
:root {
            --ink-deep: #0E1116;
            --ink-card: #161A20;
            --ink-body: #2D323A;
            --ink-muted: #5A6470;
            --ink-soft: #6B7480;
            --accent: #00E5A0;
            --accent-dark: #00C78F;
            --violet: #7C5CFF;
            --bg: #F5F6F8;
            --white: #FFFFFF;
            --border-light: #E4E7ED;
            --border-dark: #2A313B;
            --text-dark-bg: #FFFFFF;
            --text-dark-bg-muted: #B0B8C2;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 4px 16px rgba(0,0,0,0.06);
            --shadow-hover: 0 4px 8px rgba(0,0,0,0.06), 0 12px 32px rgba(0,0,0,0.10);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition: all 0.2s ease-in-out;
            --section-pad-desktop: 80px 0;
            --section-pad-tablet: 64px 0;
            --section-pad-mobile: 48px 0;
            --container-max: 1200px;
        }
        html {
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--ink-body);
            background-color: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover, a:focus-visible {
            color: var(--accent-dark);
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .section-pad {
            padding: var(--section-pad-desktop);
        }
        .section-pad-sm {
            padding: 56px 0;
        }
        .section-dark {
            background: var(--ink-deep);
            color: var(--text-dark-bg);
        }
        .section-dark h1,
        .section-dark h2,
        .section-dark h3,
        .section-dark h4 {
            color: var(--text-dark-bg);
        }
        .section-alt {
            background: var(--white);
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-dark);
            margin-bottom: 12px;
        }
        .section-label::before {
            content: "";
            display: inline-block;
            width: 20px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .text-muted { color: var(--ink-muted); }
        .text-soft { color: var(--ink-soft); }
        .text-dark-muted { color: var(--text-dark-bg-muted); }
        .text-accent { color: var(--accent-dark); }
        .text-violet { color: var(--violet); }
        .lead {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--ink-muted);
        }
        .text-center { text-align: center; }

        /* ===== Header ===== */
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(0,0,0,0.04);
        }
        .brand-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            padding: 12px 0;
            gap: 16px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--ink-deep);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }
        .brand-logo .logo-mark {
            width: 38px;
            height: 38px;
            background: var(--ink-deep);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .brand-logo:hover {
            color: var(--ink-deep);
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-trigger {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid var(--border-light);
            background: var(--white);
            color: var(--ink-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-trigger:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
        }
        .subscribe-btn-header {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: 8px;
            background: var(--ink-deep);
            color: var(--white);
            font-size: 0.9rem;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .subscribe-btn-header:hover {
            background: var(--ink-card);
            transform: translateY(-1px);
            color: var(--accent);
        }
        .nav-trigger {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border-light);
            background: var(--white);
            color: var(--ink-muted);
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-trigger:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
        }

        /* Icon Nav */
        .icon-nav {
            border-top: 1px solid var(--border-light);
            background: var(--white);
        }
        .icon-nav-grid {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            min-height: 80px;
            padding: 8px 0;
        }
        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 8px 12px;
            border-radius: var(--radius-md);
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--ink-muted);
            min-width: 70px;
            min-height: 56px;
            position: relative;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-item .nav-icon {
            font-size: 1.25rem;
            line-height: 1;
            color: var(--ink-soft);
            transition: var(--transition);
        }
        .nav-item::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-item:hover {
            background: #F0FAF7;
            color: var(--ink-deep);
        }
        .nav-item:hover .nav-icon {
            color: var(--accent-dark);
        }
        .nav-item.active {
            color: var(--accent-dark);
        }
        .nav-item.active .nav-icon {
            color: var(--accent);
        }
        .nav-item.active::after {
            width: 28px;
        }

        /* ===== Category Hero / Search Hero ===== */
        .category-hero {
            background: var(--ink-deep);
            position: relative;
            overflow: hidden;
            padding: 48px 0 56px;
        }
        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(rgba(14,17,22,0.88), rgba(14,17,22,0.94)), url('/assets/images/911d0714d59bf44f.webp') center/cover no-repeat;
            z-index: 0;
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.85rem;
            color: var(--text-dark-bg-muted);
            margin-bottom: 18px;
        }
        .breadcrumb a {
            color: var(--text-dark-bg-muted);
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .separator {
            color: #3A434E;
        }
        .breadcrumb .current {
            color: var(--accent);
            font-weight: 600;
        }
        .category-hero h1 {
            font-size: clamp(2rem, 5vw, 2.75rem);
            font-weight: 800;
            color: var(--text-dark-bg);
            margin: 0 0 12px;
            letter-spacing: -0.01em;
            line-height: 1.2;
        }
        .category-hero .hero-desc {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-dark-bg-muted);
            max-width: 720px;
            margin: 0 0 28px;
        }
        .hero-search-wrap {
            max-width: 620px;
            margin: 0 auto 28px;
        }
        .hero-search-form {
            display: flex;
            align-items: center;
            gap: 10px;
            background: var(--white);
            border-radius: var(--radius-md);
            padding: 6px;
            box-shadow: 0 8px 24px rgba(0,0,0,0.28);
        }
        .hero-search-form input {
            flex: 1;
            border: none;
            padding: 14px 18px;
            font-size: 1rem;
            color: var(--ink-body);
            background: transparent;
            outline: none;
            min-width: 0;
        }
        .hero-search-form input::placeholder {
            color: var(--ink-soft);
        }
        .hero-search-form button {
            padding: 12px 24px;
            background: var(--accent);
            color: var(--ink-deep);
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .hero-search-form button:hover {
            background: var(--accent-dark);
            transform: translateY(-1px);
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 10px;
            margin-top: 8px;
        }
        .hero-tags .tag-label {
            color: var(--text-dark-bg-muted);
            font-size: 0.85rem;
            letter-spacing: 0.03em;
        }
        .hero-tag-chip {
            padding: 6px 16px;
            border-radius: 20px;
            border: 1px solid var(--border-dark);
            color: var(--text-dark-bg-muted);
            font-size: 0.85rem;
            font-weight: 500;
            transition: var(--transition);
            background: rgba(255,255,255,0.04);
        }
        .hero-tag-chip:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(0,229,160,0.06);
        }

        /* ===== News cards ===== */
        .news-card {
            background: var(--white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
            border: 1px solid var(--border-light);
        }
        .news-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(0,229,160,0.3);
        }
        .news-card-img {
            display: block;
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: #EDEFF2;
        }
        .news-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }
        .news-card:hover .news-card-img img {
            transform: scale(1.03);
        }
        .news-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(14,17,22,0.82);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            z-index: 2;
        }
        .news-card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .news-card-date {
            font-size: 0.8rem;
            color: var(--ink-soft);
            margin-bottom: 8px;
        }
        .news-card-title {
            font-size: 1.1rem;
            font-weight: 700;
            line-height: 1.45;
            color: var(--ink-deep);
            margin: 0 0 10px;
        }
        .news-card-summary {
            font-size: 0.9rem;
            line-height: 1.65;
            color: var(--ink-muted);
            margin: 0 0 16px;
            flex: 1;
        }
        .news-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--accent-dark);
            transition: var(--transition);
        }
        .news-card-link i {
            font-size: 0.8rem;
        }
        .news-card-link:hover {
            gap: 10px;
            color: var(--ink-deep);
        }

        /* ===== Featured row ===== */
        .featured-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .featured-item {
            background: var(--white);
            border-radius: var(--radius-md);
            padding: 18px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .featured-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .featured-item .fi-tag {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--violet);
            letter-spacing: 0.04em;
        }
        .featured-item .fi-title {
            font-size: 1rem;
            font-weight: 700;
            line-height: 1.5;
            color: var(--ink-deep);
        }
        .featured-item .fi-desc {
            font-size: 0.85rem;
            line-height: 1.6;
            color: var(--ink-muted);
            margin: 0;
        }

        /* ===== Stats strip ===== */
        .stats-strip {
            background: var(--ink-deep);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-block {
            text-align: center;
            padding: 8px 4px;
        }
        .stat-number {
            font-size: clamp(2rem, 4vw, 2.75rem);
            font-weight: 800;
            color: var(--accent);
            line-height: 1.1;
            letter-spacing: -0.02em;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-dark-bg-muted);
            margin-top: 8px;
        }

        /* ===== Deep feature ===== */
        .deep-feature-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .deep-feature-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .deep-feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .dfc-img {
            aspect-ratio: 16 / 8;
            overflow: hidden;
            position: relative;
        }
        .dfc-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }
        .deep-feature-card:hover .dfc-img img {
            transform: scale(1.03);
        }
        .dfc-body {
            padding: 22px 24px 26px;
        }
        .dfc-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 4px;
            background: rgba(124,92,255,0.12);
            color: var(--violet);
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            margin-bottom: 12px;
        }
        .dfc-title {
            font-size: 1.35rem;
            font-weight: 700;
            line-height: 1.4;
            color: var(--ink-deep);
            margin: 0 0 10px;
        }
        .dfc-summary {
            font-size: 0.95rem;
            line-height: 1.75;
            color: var(--ink-muted);
            margin: 0 0 14px;
        }
        .dfc-link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--accent-dark);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .dfc-link:hover {
            gap: 10px;
        }

        /* ===== Tag chips zone ===== */
        .tag-zone {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
        }
        .tag-zone-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }
        .tz-chip {
            padding: 10px 20px;
            border-radius: 24px;
            border: 1px solid var(--border-light);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--ink-muted);
            background: var(--bg);
            transition: var(--transition);
        }
        .tz-chip:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
            background: #F0FAF7;
        }

        /* ===== Subscribe CTA ===== */
        .subscribe-cta {
            background: var(--ink-deep);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .subscribe-cta .sc-text h3 {
            color: var(--text-dark-bg);
            font-size: 1.5rem;
            font-weight: 700;
            margin: 0 0 6px;
        }
        .subscribe-cta .sc-text p {
            color: var(--text-dark-bg-muted);
            margin: 0;
            font-size: 0.95rem;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            flex: 1;
            max-width: 420px;
            min-width: 280px;
        }
        .subscribe-form input {
            flex: 1;
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid var(--border-dark);
            background: var(--ink-card);
            color: var(--text-dark-bg);
            outline: none;
            transition: var(--transition);
            min-width: 0;
        }
        .subscribe-form input::placeholder {
            color: var(--ink-soft);
        }
        .subscribe-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(0,229,160,0.15);
        }
        .subscribe-form button {
            padding: 12px 24px;
            background: var(--accent);
            color: var(--ink-deep);
            border: none;
            border-radius: 8px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .subscribe-form button:hover {
            background: var(--accent-dark);
            transform: translateY(-1px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--ink-deep);
            color: var(--text-dark-bg-muted);
            padding: 56px 0 0;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 40px;
        }
        .footer-brand .brand-logo {
            color: var(--text-dark-bg);
            font-size: 1.4rem;
            margin-bottom: 16px;
            display: inline-flex;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.75;
            color: var(--text-dark-bg-muted);
            max-width: 280px;
            margin: 0 0 18px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            border: 1px solid var(--border-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-dark-bg-muted);
            font-size: 1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(0,229,160,0.06);
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-dark-bg);
            margin: 0 0 16px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--text-dark-bg-muted);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            padding: 18px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.8rem;
            color: var(--ink-soft);
        }
        .footer-legal {
            display: flex;
            gap: 18px;
        }
        .footer-legal a {
            color: var(--ink-soft);
            transition: var(--transition);
        }
        .footer-legal a:hover {
            color: var(--accent);
        }

        /* ===== Animations ===== */
        @keyframes slideDown {
            from { opacity: 0; transform: translateY(-8px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .icon-nav-grid {
                justify-content: flex-start;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
            }
            .icon-nav-grid::-webkit-scrollbar { display: none; }
            .nav-item {
                min-width: 64px;
                flex-shrink: 0;
            }
            .featured-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-pad-desktop: 64px 0;
            }
            .brand-actions .subscribe-btn-header {
                display: none;
            }
            .nav-trigger {
                display: flex;
            }
            .icon-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--white);
                border-top: 1px solid var(--border-light);
                box-shadow: 0 12px 24px rgba(0,0,0,0.08);
            }
            .icon-nav.is-open {
                display: block;
                animation: slideDown 0.25s cubic-bezier(0.4,0,0.2,1);
            }
            .icon-nav-grid {
                display: grid;
                grid-template-columns: repeat(4, 1fr);
                gap: 4px;
                padding: 12px 0;
                overflow: visible;
            }
            .nav-item {
                min-height: 64px;
                min-width: 0;
            }
            .category-hero {
                padding: 32px 0 40px;
            }
            .deep-feature-grid {
                grid-template-columns: 1fr;
            }
            .featured-row {
                grid-template-columns: 1fr;
            }
            .subscribe-cta {
                flex-direction: column;
                text-align: center;
            }
            .subscribe-form {
                max-width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 520px) {
            .brand-logo {
                font-size: 1.25rem;
            }
            .brand-logo .logo-mark {
                width: 34px;
                height: 34px;
                font-size: 0.95rem;
            }
            .category-hero h1 {
                font-size: 1.75rem;
            }
            .hero-search-form {
                flex-direction: column;
                gap: 8px;
                padding: 12px;
            }
            .hero-search-form button {
                width: 100%;
                justify-content: center;
            }
            .stats-strip {
                grid-template-columns: 1fr 1fr;
                padding: 24px 16px;
                gap: 16px;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .icon-nav-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category7 */
:root {
            --ink-deep: #0E1116;
            --ink-card: #161A20;
            --ink-body: #2D323A;
            --ink-muted: #5A6470;
            --ink-soft: #6B7480;
            --accent: #00E5A0;
            --accent-dark: #00C78F;
            --violet: #7C5CFF;
            --bg: #F5F6F8;
            --white: #FFFFFF;
            --border-light: #E4E7ED;
            --border-dark: #2A313B;
            --text-dark-bg: #FFFFFF;
            --text-dark-bg-muted: #B0B8C2;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 4px 16px rgba(0,0,0,0.06);
            --shadow-hover: 0 4px 8px rgba(0,0,0,0.06), 0 12px 32px rgba(0,0,0,0.10);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition: all 0.2s ease-in-out;
            --section-pad-desktop: 80px 0;
            --section-pad-tablet: 64px 0;
            --section-pad-mobile: 48px 0;
            --container-max: 1200px;
        }
        html {
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--ink-body);
            background-color: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover, a:focus-visible {
            color: var(--accent-dark);
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .section-pad {
            padding: var(--section-pad-desktop);
        }
        .section-pad-sm {
            padding: 56px 0;
        }
        .section-dark {
            background: var(--ink-deep);
            color: var(--text-dark-bg);
        }
        .section-dark h1,
        .section-dark h2,
        .section-dark h3 {
            color: var(--text-dark-bg);
        }
        .section-alt {
            background: var(--white);
        }
        .text-muted {
            color: var(--ink-muted);
        }
        .text-soft {
            color: var(--ink-soft);
        }
        .text-dark-muted {
            color: var(--text-dark-bg-muted);
        }
        .text-accent {
            color: var(--accent-dark);
        }
        .lead {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--ink-muted);
        }
        .text-center {
            text-align: center;
        }

        /* ===== Header ===== */
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(0,0,0,0.04);
        }
        .brand-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            padding: 12px 0;
            gap: 16px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--ink-deep);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }
        .brand-logo .logo-mark {
            width: 38px;
            height: 38px;
            background: var(--ink-deep);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .brand-logo:hover {
            color: var(--ink-deep);
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-trigger {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid var(--border-light);
            background: var(--white);
            color: var(--ink-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-trigger:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
        }
        .subscribe-btn-header {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: 8px;
            background: var(--ink-deep);
            color: var(--white);
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .subscribe-btn-header:hover {
            background: var(--ink-card);
            color: var(--accent);
            transform: translateY(-1px);
        }
        .nav-trigger {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border-light);
            background: var(--white);
            color: var(--ink-muted);
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-trigger:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
        }

        /* icon nav */
        .icon-nav {
            border-top: 1px solid var(--border-light);
            background: var(--white);
        }
        .icon-nav-grid {
            display: flex;
            align-items: stretch;
            justify-content: space-between;
            gap: 4px;
            padding: 8px 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .icon-nav-grid::-webkit-scrollbar {
            display: none;
        }
        .nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 6px;
            min-width: 72px;
            padding: 12px 10px;
            border-radius: 10px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--ink-muted);
            position: relative;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .nav-item .nav-icon {
            width: 36px;
            height: 36px;
            border-radius: 9px;
            background: var(--bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--ink-soft);
            transition: var(--transition);
        }
        .nav-item:hover {
            color: var(--ink-deep);
            background: rgba(0,229,160,0.06);
        }
        .nav-item:hover .nav-icon {
            color: var(--accent-dark);
            background: rgba(0,229,160,0.12);
        }
        .nav-item.active {
            color: var(--accent-dark);
        }
        .nav-item.active .nav-icon {
            color: var(--accent-dark);
            background: rgba(0,229,160,0.15);
        }
        .nav-item.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 28px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            font-size: 0.88rem;
            color: var(--text-dark-bg-muted);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-dark-bg-muted);
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .separator {
            color: var(--ink-soft);
            font-size: 0.8rem;
        }
        .breadcrumb .current {
            color: var(--accent);
            font-weight: 600;
        }

        /* ===== Coupon Hero ===== */
        .coupon-hero {
            position: relative;
            background: var(--ink-deep);
            background-image: url('/assets/images/7b1d5e48e96a238c.jpg');
            background-size: cover;
            background-position: center;
            padding: 72px 0 64px;
            overflow: hidden;
        }
        .coupon-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(14,17,22,0.92) 0%, rgba(14,17,22,0.78) 50%, rgba(14,17,22,0.88) 100%);
            z-index: 1;
        }
        .coupon-hero .container {
            position: relative;
            z-index: 2;
        }
        .coupon-hero h1 {
            font-size: 2.75rem;
            font-weight: 800;
            color: var(--text-dark-bg);
            margin-bottom: 8px;
            letter-spacing: -0.02em;
        }
        .coupon-hero .hero-desc {
            font-size: 1.1rem;
            line-height: 1.75;
            color: var(--text-dark-bg-muted);
            max-width: 680px;
            margin-bottom: 32px;
        }
        .coupon-wall {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 20px;
            align-items: stretch;
        }
        .coupon-main {
            background: rgba(22,26,32,0.85);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            position: relative;
            overflow: hidden;
            backdrop-filter: blur(4px);
        }
        .coupon-main::before {
            content: "";
            position: absolute;
            top: -40px;
            right: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0,229,160,0.18) 0%, transparent 70%);
            pointer-events: none;
        }
        .coupon-main::after {
            content: "";
            position: absolute;
            bottom: -60px;
            left: -20px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(124,92,255,0.14) 0%, transparent 70%);
            pointer-events: none;
        }
        .coupon-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 12px;
            position: relative;
            z-index: 2;
        }
        .coupon-badge::before {
            content: "\f0e7";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 0.9rem;
        }
        .coupon-main .coupon-amount {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--text-dark-bg);
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 4px;
            position: relative;
            z-index: 2;
        }
        .coupon-main .coupon-amount span {
            color: var(--accent);
        }
        .coupon-main .coupon-desc {
            font-size: 0.95rem;
            color: var(--text-dark-bg-muted);
            margin-bottom: 12px;
            position: relative;
            z-index: 2;
        }
        .coupon-main .coupon-expire {
            font-size: 0.82rem;
            color: var(--ink-soft);
            margin-bottom: 20px;
            position: relative;
            z-index: 2;
        }
        .coupon-main .btn-primary {
            align-self: flex-start;
            position: relative;
            z-index: 2;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 8px;
            background: var(--accent);
            color: var(--ink-deep);
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            color: var(--ink-deep);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0,229,160,0.3);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }
        .btn-primary i {
            font-size: 0.9rem;
        }
        .coupon-side {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .coupon-mini {
            background: rgba(22,26,32,0.85);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: var(--radius-md);
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            backdrop-filter: blur(4px);
            transition: var(--transition);
        }
        .coupon-mini:hover {
            border-color: rgba(0,229,160,0.35);
            background: rgba(22,26,32,0.95);
        }
        .coupon-mini-info {
            flex: 1;
            min-width: 0;
        }
        .coupon-mini .mini-amount {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark-bg);
            margin-bottom: 2px;
        }
        .coupon-mini .mini-amount span {
            color: var(--accent);
        }
        .coupon-mini .mini-desc {
            font-size: 0.82rem;
            color: var(--text-dark-bg-muted);
        }
        .coupon-mini .btn-claim {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 8px 16px;
            border-radius: 6px;
            background: transparent;
            border: 1px solid var(--accent);
            color: var(--accent);
            font-size: 0.82rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .coupon-mini .btn-claim:hover {
            background: var(--accent);
            color: var(--ink-deep);
            transform: translateY(-1px);
        }

        /* ===== Section Headings ===== */
        .section-head {
            margin-bottom: 36px;
        }
        .section-head h2 {
            font-size: 1.85rem;
            font-weight: 700;
            color: var(--ink-deep);
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }
        .section-head .lead {
            margin-bottom: 0;
            max-width: 720px;
        }
        .section-head.dark h2 {
            color: var(--text-dark-bg);
        }
        .section-head.dark .lead {
            color: var(--text-dark-bg-muted);
        }

        /* ===== Cards Grid ===== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .content-card {
            background: var(--white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .content-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .content-card .card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--ink-card);
            position: relative;
        }
        .content-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }
        .content-card:hover .card-img img {
            transform: scale(1.04);
        }
        .content-card .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            display: inline-flex;
            align-items: center;
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 0.72rem;
            font-weight: 600;
            background: var(--accent);
            color: var(--ink-deep);
            letter-spacing: 0.03em;
            z-index: 2;
        }
        .content-card .card-tag.violet {
            background: var(--violet);
            color: var(--white);
        }
        .content-card .card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .content-card .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--ink-deep);
            margin-bottom: 8px;
            line-height: 1.4;
            transition: var(--transition);
        }
        .content-card:hover .card-title {
            color: var(--accent-dark);
        }
        .content-card .card-summary {
            font-size: 0.9rem;
            color: var(--ink-muted);
            line-height: 1.65;
            margin-bottom: 16px;
            flex: 1;
        }
        .content-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.82rem;
            color: var(--ink-soft);
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
        }
        .content-card .card-meta .card-date {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .content-card .card-meta .card-date i {
            font-size: 0.78rem;
        }
        .content-card .card-link {
            font-weight: 600;
            font-size: 0.86rem;
            color: var(--accent-dark);
            display: flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition);
        }
        .content-card .card-link i {
            font-size: 0.75rem;
        }
        .content-card .card-link:hover {
            color: var(--ink-deep);
            gap: 8px;
        }

        /* ===== Featured Cards Row ===== */
        .featured-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .featured-card {
            background: var(--white);
            border-radius: var(--radius-md);
            padding: 22px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .featured-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0,229,160,0.3);
        }
        .featured-card .feat-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            background: rgba(0,229,160,0.1);
            color: var(--accent-dark);
        }
        .featured-card .feat-icon.violet {
            background: rgba(124,92,255,0.12);
            color: var(--violet);
        }
        .featured-card .feat-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--ink-deep);
            line-height: 1.4;
        }
        .featured-card .feat-desc {
            font-size: 0.85rem;
            color: var(--ink-muted);
            line-height: 1.6;
        }
        .featured-card .feat-link {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--accent-dark);
            align-self: flex-start;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .featured-card .feat-link:hover {
            color: var(--ink-deep);
        }

        /* ===== Stats ===== */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .stat-block {
            background: var(--white);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .stat-block:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0,229,160,0.3);
        }
        .stat-block .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent-dark);
            line-height: 1.2;
            margin-bottom: 4px;
            letter-spacing: -0.02em;
        }
        .stat-block .stat-unit {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--ink-soft);
        }
        .stat-block .stat-label {
            font-size: 0.82rem;
            color: var(--ink-muted);
            margin-top: 4px;
        }

        /* ===== Deep Dive ===== */
        .deep-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .deep-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .deep-card .deep-img {
            aspect-ratio: 16/10;
            overflow: hidden;
            background: var(--ink-card);
            min-height: 100%;
        }
        .deep-card .deep-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .deep-card:hover .deep-img img {
            transform: scale(1.03);
        }
        .deep-card .deep-body {
            padding: 32px 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .deep-card .deep-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--violet);
            text-transform: uppercase;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }
        .deep-card .deep-title {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--ink-deep);
            margin-bottom: 10px;
            line-height: 1.35;
        }
        .deep-card .deep-summary {
            font-size: 0.95rem;
            color: var(--ink-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .deep-card .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: 8px;
            border: 1px solid var(--ink-deep);
            color: var(--ink-deep);
            font-weight: 600;
            font-size: 0.88rem;
            align-self: flex-start;
            transition: var(--transition);
        }
        .deep-card .btn-outline:hover {
            background: var(--ink-deep);
            color: var(--accent);
            transform: translateY(-2px);
        }

        /* ===== Tags ===== */
        .tags-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 25px;
            font-size: 0.86rem;
            font-weight: 500;
            background: var(--white);
            border: 1px solid var(--border-light);
            color: var(--ink-muted);
            transition: var(--transition);
        }
        .tag-chip:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
            background: rgba(0,229,160,0.05);
            transform: translateY(-2px);
        }
        .tag-chip i {
            font-size: 0.78rem;
            color: var(--accent-dark);
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--ink-deep);
            border-radius: var(--radius-lg);
            padding: 48px 44px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0,229,160,0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -100px;
            left: -40px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(124,92,255,0.1) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-info {
            flex: 1;
            min-width: 240px;
            position: relative;
            z-index: 2;
        }
        .cta-info h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-dark-bg);
            margin-bottom: 8px;
        }
        .cta-info p {
            font-size: 0.95rem;
            color: var(--text-dark-bg-muted);
            margin-bottom: 0;
        }
        .cta-action {
            position: relative;
            z-index: 2;
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
        }
        .cta-action .email-input {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.15);
            border-radius: 8px;
            padding: 4px 4px 4px 16px;
            transition: var(--transition);
        }
        .cta-action .email-input:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(0,229,160,0.18);
        }
        .cta-action .email-input input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--text-dark-bg);
            font-size: 0.9rem;
            padding: 10px 0;
            min-width: 220px;
        }
        .cta-action .email-input input::placeholder {
            color: var(--ink-soft);
        }
        .cta-action .btn-primary {
            white-space: nowrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--ink-deep);
            color: var(--text-dark-bg);
            padding: 56px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .brand-logo {
            color: var(--text-dark-bg);
            margin-bottom: 14px;
        }
        .footer-brand .brand-logo .logo-mark {
            background: rgba(255,255,255,0.08);
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-dark-bg-muted);
            line-height: 1.7;
            margin-bottom: 18px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-dark-bg-muted);
            font-size: 0.9rem;
            transition: var(--transition);
            border: 1px solid rgba(255,255,255,0.08);
        }
        .footer-social a:hover {
            background: var(--accent);
            color: var(--ink-deep);
            border-color: var(--accent);
            transform: translateY(-2px);
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-dark-bg);
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            font-size: 0.88rem;
            color: var(--text-dark-bg-muted);
            transition: var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.82rem;
            color: var(--ink-soft);
        }
        .footer-legal {
            display: flex;
            gap: 18px;
        }
        .footer-legal a {
            color: var(--ink-soft);
            transition: var(--transition);
        }
        .footer-legal a:hover {
            color: var(--accent);
        }

        /* ===== Mobile Nav Drawer ===== */
        .nav-drawer {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            bottom: 0;
            width: 280px;
            max-width: 85vw;
            background: var(--white);
            z-index: 200;
            box-shadow: -8px 0 32px rgba(0,0,0,0.18);
            padding: 20px;
            transform: translateX(100%);
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow-y: auto;
        }
        .nav-drawer.open {
            transform: translateX(0);
        }
        .nav-drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
        }
        .nav-drawer-header .brand-logo {
            font-size: 1.2rem;
        }
        .nav-drawer-header .brand-logo .logo-mark {
            width: 32px;
            height: 32px;
            font-size: 0.9rem;
        }
        .nav-drawer-close {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            border: 1px solid var(--border-light);
            background: var(--white);
            color: var(--ink-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-drawer-close:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
        }
        .nav-drawer-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
        }
        .nav-drawer-grid .nav-item {
            min-width: 0;
            padding: 14px 10px;
            background: var(--bg);
            border-radius: 10px;
        }
        .nav-drawer-grid .nav-item.active {
            background: rgba(0,229,160,0.1);
        }
        .nav-drawer-grid .nav-item.active::after {
            display: none;
        }
        .nav-drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(14,17,22,0.6);
            z-index: 150;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .nav-drawer-overlay.open {
            opacity: 1;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .icon-nav-grid {
                justify-content: flex-start;
                gap: 2px;
            }
            .nav-item {
                min-width: 64px;
                padding: 10px 8px;
                font-size: 0.78rem;
            }
            .nav-item .nav-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .coupon-wall {
                grid-template-columns: 1fr;
            }
            .featured-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .section-pad {
                padding: var(--section-pad-mobile);
            }
            .coupon-hero {
                padding: 48px 0 40px;
            }
            .coupon-hero h1 {
                font-size: 2rem;
            }
            .coupon-hero .hero-desc {
                font-size: 1rem;
            }
            .cards-grid {
                grid-template-columns: 1fr;
            }
            .featured-row {
                grid-template-columns: 1fr;
            }
            .deep-card {
                grid-template-columns: 1fr;
            }
            .deep-card .deep-img {
                aspect-ratio: 16/9;
                min-height: auto;
            }
            .deep-card .deep-body {
                padding: 24px 22px;
            }
            .cta-section {
                padding: 32px 24px;
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-action {
                width: 100%;
            }
            .cta-action .email-input {
                width: 100%;
            }
            .cta-action .email-input input {
                min-width: 0;
                flex: 1;
            }
            .nav-trigger {
                display: flex;
            }
            .icon-nav {
                display: none;
            }
            .brand-actions .subscribe-btn-header {
                display: none;
            }
            .nav-drawer,
            .nav-drawer-overlay {
                display: block;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .coupon-main {
                padding: 22px 20px;
            }
            .coupon-main .coupon-amount {
                font-size: 1.9rem;
            }
            .coupon-mini {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .coupon-mini .btn-claim {
                align-self: flex-start;
            }
        }
        @media (max-width: 520px) {
            .coupon-hero h1 {
                font-size: 1.7rem;
            }
            .coupon-hero .hero-desc {
                font-size: 0.9rem;
            }
            .coupon-main .coupon-amount {
                font-size: 1.6rem;
            }
            .stat-block .stat-number {
                font-size: 1.7rem;
            }
            .section-head h2 {
                font-size: 1.4rem;
            }
            .deep-card .deep-title {
                font-size: 1.15rem;
            }
            .cta-info h2 {
                font-size: 1.3rem;
            }
            .brand-bar {
                gap: 10px;
            }
            .brand-logo {
                font-size: 1.25rem;
            }
        }