/* roulang page: index */
:root {
            --bg-page: #0C0B0E;
            --bg-section: #141216;
            --bg-card: #1B141A;
            --bg-sidebar: #08070A;
            --primary: #D92045;
            --primary-hover: #F03258;
            --accent: #EB9C2B;
            --text-strong: #F5EDF0;
            --text-mid: #B09BA4;
            --text-weak: #6E5C64;
            --border-subtle: #2A1D24;
            --border-active: rgba(217, 32, 69, 0.6);
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.45);
            --shadow-hover: 0 14px 34px rgba(0, 0, 0, 0.6);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-chip: 4px;
            --radius-full: 100px;
            --font-cn: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-en: "Oswald", "Bebas Neue", "Roboto Condensed", "Arial Narrow", sans-serif;
            --transition: 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-cn);
            background-color: var(--bg-page);
            color: var(--text-strong);
            font-size: 15px;
            line-height: 1.8;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--primary);
        }

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid rgba(217, 32, 69, 0.5);
            outline-offset: 2px;
        }

        h1,
        h2,
        h3,
        h4 {
            line-height: 1.35;
            font-weight: 700;
        }

        h1 {
            font-size: 40px;
            letter-spacing: -0.5px;
        }
        h2 {
            font-size: 30px;
            letter-spacing: -0.3px;
        }
        h3 {
            font-size: 18px;
            font-weight: 600;
        }
        p {
            color: var(--text-mid);
        }

        .english,
        .num {
            font-family: var(--font-en);
            letter-spacing: 0.5px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 40px;
            padding-right: 40px;
        }

        /* ============ APP SHELL LAYOUT ============ */
        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        /* ============ SIDEBAR NAV ============ */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: 250px;
            height: 100vh;
            background-color: var(--bg-sidebar);
            border-right: 1px solid var(--border-subtle);
            display: flex;
            flex-direction: column;
            z-index: 1000;
        }

        .sidebar-logo {
            padding: 28px 20px 20px;
            border-bottom: 1px solid var(--border-subtle);
        }

        .sidebar-logo .logo-en {
            font-family: var(--font-en);
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--text-strong);
            display: block;
            line-height: 1.2;
        }

        .sidebar-logo .logo-cn {
            font-size: 12px;
            color: var(--text-mid);
            letter-spacing: 1px;
            margin-top: 4px;
            display: block;
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 0;
            overflow-y: auto;
        }

        .nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 20px;
            font-size: 15px;
            color: var(--text-mid);
            position: relative;
            transition: all var(--transition);
            border-left: 3px solid transparent;
        }

        .nav-item i {
            width: 20px;
            text-align: center;
            font-size: 16px;
        }

        .nav-item:hover {
            color: var(--text-strong);
            background: rgba(255, 255, 255, 0.03);
            border-left-color: var(--primary);
        }

        .nav-item.active {
            color: var(--text-strong);
            border-left-color: var(--primary);
            background: linear-gradient(to right, rgba(217, 32, 69, 0.1), transparent);
        }

        .sidebar-footer {
            padding: 16px 20px 24px;
            border-top: 1px solid var(--border-subtle);
        }

        .sidebar-search {
            width: 100%;
            height: 40px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            color: var(--text-strong);
            padding: 0 12px;
            font-size: 13px;
            transition: border-color var(--transition);
            margin-bottom: 12px;
        }

        .sidebar-search::placeholder {
            color: var(--text-weak);
        }
        .sidebar-search:focus {
            border-color: var(--primary);
            outline: none;
        }

        .vip-entry {
            display: block;
            text-align: center;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            padding: 10px 16px;
            border-radius: var(--radius-btn);
            transition: all var(--transition);
        }

        .vip-entry:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
        }

        /* ============ MAIN CONTENT ============ */
        .main-content {
            flex: 1;
            margin-left: 250px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ============ MOBILE TOP BAR ============ */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: var(--bg-sidebar);
            border-bottom: 1px solid var(--border-subtle);
            z-index: 999;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
        }

        .mobile-topbar .hamburger {
            font-size: 22px;
            color: var(--text-strong);
            background: none;
            border: none;
            padding: 4px;
        }

        .mobile-topbar .mobile-logo {
            font-family: var(--font-en);
            font-size: 18px;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--text-strong);
        }

        .mobile-topbar .mobile-vip {
            font-size: 20px;
            color: var(--primary);
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 998;
        }

        .drawer-overlay.open {
            display: block;
        }

        /* ============ SECTIONS ============ */
        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-subtle);
        }

        section:nth-child(odd) {
            background-color: var(--bg-page);
        }
        section:nth-child(even) {
            background-color: var(--bg-section);
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header h2 {
            color: var(--text-strong);
            margin-bottom: 12px;
        }

        .section-header .section-subtitle {
            font-size: 15px;
            color: var(--text-mid);
            max-width: 680px;
            line-height: 1.8;
        }

        .section-tag {
            display: inline-block;
            font-size: 12px;
            color: var(--primary);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }

        /* ============ HERO ============ */
        .hero-section {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/c3892ef5af2adac7.webp');
            background-size: cover;
            background-position: center;
            padding: 100px 0 80px;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(8, 7, 10, 0.75);
            z-index: 1;
        }

        .hero-section .container {
            position: relative;
            z-index: 2;
        }

        .hero-content {
            max-width: 600px;
        }

        .hero-content h1 {
            font-size: 42px;
            color: var(--text-strong);
            margin-bottom: 20px;
            line-height: 1.25;
        }

        .hero-content .hero-subtitle {
            font-size: 17px;
            color: var(--text-mid);
            margin-bottom: 28px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
            margin-bottom: 28px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            color: #fff;
        }
        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-ghost {
            background: transparent;
            border: 1px solid var(--text-mid);
            color: var(--text-mid);
            padding: 13px 26px;
            border-radius: var(--radius-btn);
            font-weight: 500;
            font-size: 15px;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-ghost:hover {
            border-color: var(--primary);
            color: var(--text-strong);
        }

        .hero-search {
            display: flex;
            gap: 10px;
            max-width: 480px;
        }

        .hero-search input {
            flex: 1;
            height: 48px;
            background: rgba(0, 0, 0, 0.7);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            color: var(--text-strong);
            padding: 0 16px;
            font-size: 14px;
            transition: border-color var(--transition);
        }

        .hero-search input::placeholder {
            color: var(--text-weak);
        }
        .hero-search input:focus {
            border-color: var(--primary);
            outline: none;
        }

        .hero-search .btn-primary {
            height: 48px;
            padding: 0 24px;
        }

        .hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

        .hero-stat {
            text-align: left;
        }

        .hero-stat .stat-number {
            font-family: var(--font-en);
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            display: block;
            line-height: 1.2;
        }

        .hero-stat .stat-label {
            font-size: 13px;
            color: var(--text-mid);
        }

        /* ============ TRUST BAR ============ */
        .trust-bar {
            padding: 40px 0;
            background: var(--bg-section);
            border-bottom: 1px solid var(--border-subtle);
        }

        .trust-bar .trust-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            text-align: center;
        }

        .trust-item .trust-number {
            font-family: var(--font-en);
            font-size: 32px;
            font-weight: 700;
            color: var(--text-strong);
            display: block;
            line-height: 1.2;
        }

        .trust-item .trust-desc {
            font-size: 14px;
            color: var(--text-mid);
            margin-top: 4px;
        }

        /* ============ SEARCH ENTRY / CATEGORY MATRIX ============ */
        .category-matrix .matrix-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .matrix-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: all var(--transition);
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }

        .matrix-card:hover {
            border-color: var(--border-active);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .matrix-card .matrix-icon {
            width: 44px;
            height: 44px;
            flex-shrink: 0;
            border-radius: var(--radius-btn);
            background: rgba(217, 32, 69, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
        }

        .matrix-card h3 {
            font-size: 16px;
            color: var(--text-strong);
            margin-bottom: 6px;
        }
        .matrix-card p {
            font-size: 13px;
            color: var(--text-mid);
            line-height: 1.6;
        }

        /* ============ FEATURED LIST ============ */
        .featured-section .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .video-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition);
        }

        .video-card:hover {
            border-color: var(--border-active);
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .video-card .card-cover {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #2a1d24;
        }

        .video-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }

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

        .video-card .duration-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(0, 0, 0, 0.75);
            color: #fff;
            font-family: var(--font-en);
            font-size: 12px;
            padding: 4px 8px;
            border-radius: var(--radius-chip);
            letter-spacing: 0.5px;
        }

        .video-card .play-overlay {
            position: absolute;
            bottom: 12px;
            right: 12px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.7);
            border: 2px solid rgba(255, 255, 255, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            transition: all var(--transition);
        }

        .video-card:hover .play-overlay {
            border-color: var(--primary);
            transform: scale(1.08);
        }

        .video-card .card-body {
            padding: 16px;
        }

        .video-card .card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .video-card .card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 8px;
        }

        .tag-chip {
            font-size: 11px;
            padding: 4px 8px;
            border-radius: var(--radius-chip);
            background: rgba(217, 32, 69, 0.12);
            color: var(--primary);
            font-weight: 500;
        }

        .video-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-weak);
        }

        .video-card .card-meta .play-count {
            color: var(--accent);
            font-family: var(--font-en);
        }

        .vip-tag {
            font-size: 10px;
            padding: 3px 6px;
            border-radius: var(--radius-full);
            background: rgba(235, 156, 43, 0.2);
            color: var(--accent);
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        /* ============ NEWS LIST ============ */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .news-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            transition: all var(--transition);
        }

        .news-item:hover {
            background: var(--bg-section);
            border-color: var(--border-active);
        }
        .news-item .news-title {
            flex: 1;
            font-weight: 600;
            color: var(--text-strong);
            font-size: 15px;
        }
        .news-item .news-date {
            font-size: 13px;
            color: var(--text-weak);
            font-family: var(--font-en);
        }

        /* ============ RANKING ============ */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 18px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            transition: all var(--transition);
        }

        .rank-item:hover {
            background: var(--bg-section);
            border-color: var(--border-active);
        }

        .rank-number {
            font-family: var(--font-en);
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            width: 40px;
            text-align: center;
            flex-shrink: 0;
        }
        .rank-item:nth-child(1) .rank-number {
            color: var(--accent);
        }
        .rank-item:nth-child(2) .rank-number {
            color: #c0c0c0;
        }
        .rank-item:nth-child(3) .rank-number {
            color: #cd7f32;
        }

        .rank-cover {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-btn);
            overflow: hidden;
            flex-shrink: 0;
            background: #2a1d24;
        }
        .rank-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .rank-info {
            flex: 1;
            min-width: 0;
        }
        .rank-info .rank-title {
            font-weight: 600;
            color: var(--text-strong);
            font-size: 15px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .rank-info .rank-tags {
            font-size: 12px;
            color: var(--text-weak);
            margin-top: 2px;
        }
        .rank-heat {
            font-family: var(--font-en);
            color: var(--accent);
            font-size: 14px;
            font-weight: 600;
            flex-shrink: 0;
        }

        /* ============ SCENE DEMO ============ */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .scene-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition);
        }
        .scene-card:hover {
            border-color: var(--border-active);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .scene-card .scene-icon {
            font-size: 36px;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .scene-card h3 {
            font-size: 17px;
            color: var(--text-strong);
            margin-bottom: 8px;
        }
        .scene-card p {
            font-size: 13px;
            color: var(--text-mid);
            line-height: 1.7;
        }

        /* ============ PRICING ============ */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: stretch;
        }
        .price-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 32px 24px;
            text-align: center;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .price-card:hover {
            border-color: var(--border-active);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .price-card.featured {
            border-color: var(--primary);
            position: relative;
        }
        .price-card .price-name {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 12px;
        }
        .price-card .price-amount {
            font-family: var(--font-en);
            font-size: 36px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 4px;
        }
        .price-card .price-unit {
            font-size: 14px;
            color: var(--text-mid);
            margin-bottom: 16px;
        }
        .price-card .price-features {
            list-style: none;
            text-align: left;
            margin-bottom: 24px;
            flex: 1;
        }
        .price-card .price-features li {
            padding: 8px 0;
            font-size: 14px;
            color: var(--text-mid);
            border-bottom: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .price-card .price-features li i {
            color: var(--primary);
            font-size: 13px;
        }

        /* ============ TESTIMONIALS ============ */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .review-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: all var(--transition);
        }
        .review-card:hover {
            border-color: var(--border-active);
        }
        .review-stars {
            color: var(--accent);
            margin-bottom: 12px;
            font-size: 14px;
        }
        .review-text {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .review-author {
            font-size: 13px;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .review-author .review-avatar {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-section);
            border: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--text-mid);
        }

        /* ============ RESOURCE CENTER / CALENDAR ============ */
        .calendar-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .calendar-day {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            padding: 16px;
            text-align: center;
            transition: all var(--transition);
        }
        .calendar-day:hover {
            border-color: var(--border-active);
        }
        .calendar-day .day-name {
            font-size: 13px;
            color: var(--text-mid);
            margin-bottom: 4px;
        }
        .calendar-day .day-date {
            font-family: var(--font-en);
            font-size: 20px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 8px;
        }
        .calendar-day .day-event {
            font-size: 11px;
            color: var(--primary);
            font-weight: 500;
        }

        /* ============ SECURITY ============ */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .security-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition);
        }
        .security-card:hover {
            border-color: var(--border-active);
        }
        .security-card .security-icon {
            font-size: 28px;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .security-card h3 {
            font-size: 15px;
            color: var(--text-strong);
            margin-bottom: 6px;
        }
        .security-card p {
            font-size: 12px;
            color: var(--text-mid);
            line-height: 1.6;
        }

        /* ============ FINAL CTA ============ */
        .final-cta {
            background-image: url('/assets/images/3ee91c5ccc28a2b7.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 100px 0;
        }
        .final-cta::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(8, 7, 10, 0.8);
            z-index: 1;
        }
        .final-cta .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .final-cta h2 {
            color: var(--text-strong);
            font-size: 32px;
            margin-bottom: 16px;
        }
        .final-cta p {
            color: var(--text-mid);
            font-size: 16px;
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .final-cta .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ============ FOOTER ============ */
        footer {
            background: var(--bg-sidebar);
            padding: 48px 0 32px;
            border-top: 1px solid var(--border-subtle);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .footer-logo {
            font-family: var(--font-en);
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 1.5px;
            color: var(--text-strong);
            margin-bottom: 4px;
        }
        .footer-brand .footer-cn {
            font-size: 12px;
            color: var(--text-mid);
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.7;
        }
        .footer-col h4 {
            font-size: 14px;
            color: var(--text-strong);
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-mid);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--text-strong);
        }
        .footer-copyright {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
            text-align: center;
            font-size: 12px;
            color: var(--text-weak);
        }
        .footer-copyright .domain {
            font-family: var(--font-en);
            color: var(--text-mid);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .sidebar {
                transform: translateX(-100%);
                transition: transform 0.3s ease;
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-topbar {
                display: flex;
            }
            .main-content {
                padding-top: 56px;
            }
            .container {
                padding-left: 24px;
                padding-right: 24px;
            }
            section {
                padding: 56px 0;
            }
            h1 {
                font-size: 32px;
            }
            h2 {
                font-size: 24px;
            }
            .hero-content h1 {
                font-size: 32px;
            }
            .category-matrix .matrix-grid,
            .featured-section .card-grid,
            .scene-grid,
            .pricing-grid,
            .review-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .security-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .calendar-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .trust-bar .trust-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            section {
                padding: 40px 0;
            }
            .hero-section {
                min-height: auto;
                padding: 60px 0 50px;
            }
            .hero-content h1 {
                font-size: 26px;
            }
            .hero-content .hero-subtitle {
                font-size: 15px;
            }
            .hero-search {
                flex-direction: column;
                max-width: 100%;
            }
            .hero-search .btn-primary {
                width: 100%;
                justify-content: center;
            }
            .hero-stats {
                gap: 20px;
            }
            .category-matrix .matrix-grid,
            .featured-section .card-grid,
            .scene-grid,
            .pricing-grid,
            .review-grid,
            .security-grid,
            .calendar-grid {
                grid-template-columns: 1fr;
            }
            .trust-bar .trust-grid {
                grid-template-columns: 1fr;
                gap: 16px;
                text-align: center;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .final-cta {
                padding: 60px 0;
            }
            .final-cta h2 {
                font-size: 24px;
            }
            .rank-item {
                flex-wrap: wrap;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-ghost {
                width: 100%;
                justify-content: center;
            }
            .final-cta .cta-buttons .btn-primary,
            .final-cta .cta-buttons .btn-ghost {
                width: 100%;
                justify-content: center;
            }
            .video-card .card-title {
                font-size: 14px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-page: #0C0B0E;
            --bg-section: #141216;
            --bg-card: #1B141A;
            --bg-sidebar: #08070A;
            --primary: #D92045;
            --primary-hover: #F03258;
            --accent: #EB9C2B;
            --text-strong: #F5EDF0;
            --text-mid: #B09BA4;
            --text-weak: #6E5C64;
            --border-subtle: #2A1D24;
            --border-active: rgba(217, 32, 69, 0.6);
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.45);
            --shadow-hover: 0 14px 34px rgba(0, 0, 0, 0.6);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-chip: 4px;
            --radius-full: 100px;
            --font-cn: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-en: "Oswald", "Bebas Neue", "Roboto Condensed", "Arial Narrow", sans-serif;
            --transition: 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-cn);
            background-color: var(--bg-page);
            color: var(--text-strong);
            font-size: 15px;
            line-height: 1.8;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--primary);
        }

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid rgba(217, 32, 69, 0.5);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 40px;
            padding-right: 40px;
        }

        /* ============ SIDEBAR NAV ============ */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: 250px;
            height: 100vh;
            background-color: var(--bg-sidebar);
            border-right: 1px solid var(--border-subtle);
            display: flex;
            flex-direction: column;
            z-index: 1000;
        }

        .sidebar-logo {
            padding: 28px 20px 20px;
            border-bottom: 1px solid var(--border-subtle);
        }

        .sidebar-logo .logo-en {
            font-family: var(--font-en);
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--text-strong);
            display: block;
            line-height: 1.2;
        }

        .sidebar-logo .logo-cn {
            font-size: 12px;
            color: var(--text-mid);
            letter-spacing: 1px;
            margin-top: 4px;
            display: block;
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 0;
            overflow-y: auto;
        }

        .nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 20px;
            font-size: 15px;
            color: var(--text-mid);
            position: relative;
            transition: all var(--transition);
            border-left: 3px solid transparent;
        }

        .nav-item i {
            width: 20px;
            text-align: center;
            font-size: 16px;
        }

        .nav-item:hover {
            color: var(--text-strong);
            background: rgba(255, 255, 255, 0.03);
            border-left-color: var(--primary);
        }

        .nav-item.active {
            color: var(--text-strong);
            border-left-color: var(--primary);
            background: linear-gradient(to right, rgba(217, 32, 69, 0.1), transparent);
        }

        .sidebar-footer {
            padding: 16px 20px 24px;
            border-top: 1px solid var(--border-subtle);
        }

        .sidebar-search {
            width: 100%;
            height: 40px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-btn);
            color: var(--text-strong);
            padding: 0 12px;
            font-size: 13px;
            transition: border-color var(--transition);
            margin-bottom: 12px;
        }

        .sidebar-search::placeholder {
            color: var(--text-weak);
        }

        .sidebar-search:focus {
            border-color: var(--primary);
            outline: none;
        }

        .sidebar-vip-link {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            padding: 10px;
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            transition: all var(--transition);
        }

        .sidebar-vip-link:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ============ MAIN CONTENT ============ */
        .main-content {
            flex: 1;
            margin-left: 250px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ============ MOBILE TOP BAR ============ */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: var(--bg-sidebar);
            border-bottom: 1px solid var(--border-subtle);
            z-index: 999;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
        }

        .mobile-topbar .hamburger {
            font-size: 22px;
            color: var(--text-strong);
            background: none;
            border: none;
            padding: 4px;
        }

        .mobile-topbar .mobile-logo {
            font-family: var(--font-en);
            font-size: 18px;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--text-strong);
        }

        .mobile-topbar .mobile-vip {
            font-size: 20px;
            color: var(--primary);
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 998;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .drawer-overlay.show {
            opacity: 1;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            left: -280px;
            width: 280px;
            height: 100vh;
            background: var(--bg-sidebar);
            border-right: 1px solid var(--border-subtle);
            z-index: 1001;
            transition: left 0.3s ease;
            display: flex;
            flex-direction: column;
            padding-top: 16px;
        }

        .mobile-drawer.open {
            left: 0;
        }

        .drawer-close {
            position: absolute;
            top: 16px;
            right: 16px;
            font-size: 20px;
            color: var(--text-mid);
            background: none;
            border: none;
        }

        .drawer-close:hover {
            color: var(--text-strong);
        }

        /* ============ BUTTONS ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            transition: all var(--transition);
            line-height: 1.5;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-secondary {
            background: transparent;
            border: 1px solid var(--text-mid);
            color: var(--text-mid);
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--text-strong);
        }

        .btn-ghost {
            background: transparent;
            border: 1px solid rgba(245, 237, 240, 0.5);
            color: var(--text-strong);
        }

        .btn-ghost:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
        }

        /* ============ BADGES & CHIPS ============ */
        .chip {
            display: inline-flex;
            align-items: center;
            padding: 4px 10px;
            border-radius: var(--radius-chip);
            font-size: 12px;
            font-weight: 500;
            line-height: 1.4;
            background: rgba(217, 32, 69, 0.12);
            color: var(--primary);
            border: 1px solid rgba(217, 32, 69, 0.25);
        }

        .chip-accent {
            background: rgba(235, 156, 43, 0.12);
            color: var(--accent);
            border-color: rgba(235, 156, 43, 0.25);
        }

        .chip-muted {
            background: rgba(176, 155, 164, 0.1);
            color: var(--text-mid);
            border-color: var(--border-subtle);
        }

        .badge-vip {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 3px 8px;
            border-radius: var(--radius-full);
            font-size: 11px;
            font-weight: 700;
            background: rgba(235, 156, 43, 0.15);
            color: var(--accent);
            border: 1px solid rgba(235, 156, 43, 0.3);
            letter-spacing: 0.5px;
        }

        /* ============ SECTION COMMON ============ */
        .section {
            padding-top: 64px;
            padding-bottom: 64px;
        }

        .section-alt {
            background: var(--bg-section);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .section-header {
            margin-bottom: 32px;
        }

        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-strong);
            letter-spacing: 0.5px;
        }

        .section-header p {
            font-size: 15px;
            color: var(--text-mid);
            margin-top: 8px;
        }

        /* ============ CATEGORY H1 AREA ============ */
        .category-header {
            padding: 40px 0 24px;
            border-bottom: 1px solid var(--border-subtle);
            background: var(--bg-section);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-mid);
            transition: color var(--transition);
        }

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

        .breadcrumb .separator {
            color: var(--text-weak);
        }

        .breadcrumb .current {
            color: var(--text-strong);
            font-weight: 500;
        }

        .category-header h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-strong);
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }

        .category-header .header-sub {
            font-size: 16px;
            color: var(--text-mid);
        }

        .category-header .header-sub strong {
            color: var(--accent);
            font-weight: 600;
        }

        /* ============ FILTER TOOLBAR ============ */
        .filter-toolbar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            padding: 16px 0;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            margin-top: 24px;
        }

        .filter-group {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
        }

        .filter-label {
            font-size: 13px;
            color: var(--text-weak);
            margin-right: 4px;
        }

        .filter-chip {
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: 13px;
            color: var(--text-mid);
            background: transparent;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }

        .filter-chip:hover {
            border-color: var(--primary);
            color: var(--text-strong);
        }

        .filter-chip.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        .filter-divider {
            width: 1px;
            height: 28px;
            background: var(--border-subtle);
            margin: 0 8px;
        }

        .sort-group {
            display: flex;
            gap: 8px;
            margin-left: auto;
            flex-wrap: wrap;
        }

        .sort-btn {
            padding: 6px 14px;
            border-radius: var(--radius-chip);
            font-size: 13px;
            color: var(--text-mid);
            background: transparent;
            border: none;
            transition: all var(--transition);
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .sort-btn:hover {
            color: var(--text-strong);
        }

        .sort-btn.active {
            color: #fff;
            background: rgba(217, 32, 69, 0.3);
        }

        /* ============ VIDEO CARD GRID ============ */
        .video-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 32px;
        }

        .video-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition);
            position: relative;
        }

        .video-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-active);
            box-shadow: var(--shadow-hover);
        }

        .video-card .card-cover {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-section);
        }

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

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

        .card-duration {
            position: absolute;
            top: 10px;
            left: 10px;
            background: rgba(0, 0, 0, 0.75);
            color: #fff;
            font-size: 12px;
            padding: 3px 8px;
            border-radius: 4px;
            font-family: var(--font-en);
            letter-spacing: 0.5px;
        }

        .card-play-btn {
            position: absolute;
            bottom: 10px;
            right: 10px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.6);
            border: 2px solid rgba(255, 255, 255, 0.4);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            transition: all var(--transition);
            cursor: pointer;
        }

        .video-card:hover .card-play-btn {
            border-color: var(--primary);
            background: rgba(217, 32, 69, 0.8);
        }

        .card-vip-badge {
            position: absolute;
            top: 10px;
            right: 10px;
        }

        .card-body {
            padding: 16px;
        }

        .card-title {
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text-strong);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 45px;
        }

        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 10px;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-weak);
        }

        .card-meta .views {
            color: var(--accent);
            font-family: var(--font-en);
            font-weight: 600;
            letter-spacing: 0.3px;
        }

        /* ============ CALENDAR ============ */
        .calendar-grid {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
            gap: 12px;
            margin-top: 8px;
        }

        .calendar-day {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 16px 12px;
            text-align: center;
            transition: all var(--transition);
        }

        .calendar-day:hover {
            border-color: var(--border-active);
            transform: translateY(-3px);
        }

        .calendar-day .day-label {
            font-size: 12px;
            color: var(--text-weak);
            margin-bottom: 6px;
            letter-spacing: 1px;
        }

        .calendar-day .day-num {
            font-family: var(--font-en);
            font-size: 22px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.2;
            margin-bottom: 8px;
        }

        .calendar-day .day-item {
            font-size: 12px;
            color: var(--text-mid);
            line-height: 1.5;
            padding: 4px 0;
            border-top: 1px dashed var(--border-subtle);
        }

        .calendar-day .day-item.highlight {
            color: var(--primary);
            font-weight: 600;
        }

        .calendar-day.today {
            border-color: var(--primary);
            background: rgba(217, 32, 69, 0.08);
        }

        /* ============ TOPIC HORIZONTAL SCROLL ============ */
        .topic-scroll {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding-bottom: 12px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }

        .topic-scroll::-webkit-scrollbar {
            height: 6px;
        }

        .topic-scroll::-webkit-scrollbar-track {
            background: var(--bg-section);
            border-radius: 3px;
        }

        .topic-scroll::-webkit-scrollbar-thumb {
            background: var(--border-subtle);
            border-radius: 3px;
        }

        .topic-card {
            flex: 0 0 260px;
            scroll-snap-align: start;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition);
        }

        .topic-card:hover {
            border-color: var(--border-active);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .topic-card .topic-cover {
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }

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

        .topic-card:hover .topic-cover img {
            transform: scale(1.05);
        }

        .topic-card .topic-body {
            padding: 14px 16px;
        }

        .topic-card .topic-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-strong);
            line-height: 1.4;
        }

        .topic-card .topic-count {
            font-size: 12px;
            color: var(--text-weak);
            margin-top: 4px;
        }

        /* ============ RATING SUMMARY ============ */
        .rating-summary {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: start;
        }

        .rating-overall {
            text-align: center;
            padding: 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
        }

        .rating-overall .rating-score {
            font-family: var(--font-en);
            font-size: 48px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.1;
        }

        .rating-overall .rating-stars {
            color: var(--accent);
            font-size: 18px;
            margin: 8px 0;
            letter-spacing: 2px;
        }

        .rating-overall .rating-label {
            font-size: 13px;
            color: var(--text-weak);
        }

        .rating-bars {
            display: flex;
            flex-direction: column;
            gap: 10px;
            justify-content: center;
        }

        .rating-bar-row {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 12px;
            color: var(--text-mid);
        }

        .rating-bar-row .bar-label {
            width: 36px;
            text-align: right;
            flex-shrink: 0;
        }

        .rating-bar-row .bar-track {
            flex: 1;
            height: 8px;
            background: var(--bg-section);
            border-radius: 4px;
            overflow: hidden;
        }

        .rating-bar-row .bar-fill {
            height: 100%;
            border-radius: 4px;
            background: var(--accent);
            transition: width 0.6s ease;
        }

        .rating-bar-row .bar-count {
            width: 44px;
            flex-shrink: 0;
            color: var(--text-weak);
        }

        .short-reviews {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 20px;
        }

        .short-review-item {
            padding: 14px 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.6;
        }

        .short-review-item .review-stars {
            color: var(--accent);
            font-size: 12px;
            letter-spacing: 2px;
            margin-bottom: 4px;
        }

        .short-review-item .review-text {
            color: var(--text-mid);
        }

        /* ============ MEMBER CTA BANNER ============ */
        .member-cta-banner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding: 32px;
            background: var(--bg-card);
            border: 1px solid var(--border-active);
            border-radius: var(--radius-card);
            flex-wrap: wrap;
        }

        .member-cta-banner .cta-text h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 6px;
        }

        .member-cta-banner .cta-text p {
            font-size: 14px;
            color: var(--text-mid);
        }

        /* ============ LOAD MORE ============ */
        .load-more-area {
            text-align: center;
            padding: 16px 0 8px;
        }

        /* ============ FOOTER ============ */
        #footer {
            background: var(--bg-sidebar);
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 24px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .footer-logo {
            font-family: var(--font-en);
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--text-strong);
            margin-bottom: 4px;
        }

        .footer-brand .footer-cn {
            font-size: 13px;
            color: var(--text-mid);
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

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

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

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-mid);
            transition: color var(--transition);
        }

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

        .footer-copyright {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
            font-size: 13px;
            color: var(--text-weak);
            text-align: center;
        }

        .footer-copyright .domain {
            color: var(--text-mid);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .sidebar {
                display: none;
            }
            .mobile-topbar {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: 56px;
            }
            .drawer-overlay.show {
                display: block;
            }
            .video-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .calendar-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 8px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section {
                padding-top: 40px;
                padding-bottom: 40px;
            }
            .category-header h1 {
                font-size: 26px;
            }
            .video-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .calendar-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .rating-summary {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .member-cta-banner {
                flex-direction: column;
                text-align: center;
                padding: 24px 20px;
            }
            .filter-toolbar {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
                padding: 14px 16px;
            }
            .filter-divider {
                display: none;
            }
            .sort-group {
                margin-left: 0;
            }
        }

        @media (max-width: 520px) {
            .video-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .card-title {
                font-size: 14px;
                min-height: 40px;
            }
            .calendar-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 6px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .topic-card {
                flex: 0 0 220px;
            }
            .rating-overall .rating-score {
                font-size: 36px;
            }
        }