/* roulang page: index */
:root {
            --bg-dark: #0D0A12;
            --bg-panel: #17131F;
            --bg-secondary: #100A18;
            --c-primary: #FF2E63;
            --c-secondary: #FFB800;
            --c-accent: #00E5FF;
            --c-success: #2EE59D;
            --grad-main: linear-gradient(135deg, #FF2E63, #FFB800);
            --grad-dark: linear-gradient(180deg, #0D0A12, #1B1230);
            --text-primary: #F5F1FA;
            --text-secondary: rgba(245, 241, 250, 0.72);
            --text-muted: rgba(245, 241, 250, 0.48);
            --border-subtle: rgba(255, 255, 255, 0.06);
            --border-highlight: rgba(255, 46, 99, 0.6);
            --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 28px 70px rgba(0, 0, 0, 0.5);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, 'Segoe UI', sans-serif;
            --font-mono: 'Roboto Mono', 'IBM Plex Mono', 'SFMono-Regular', 'Consolas', 'Courier New', monospace;
            --radius-lg: 22px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --radius-pill: 999px;
            --section-padding: 80px 0;
            --container-width: 1320px;
            --nav-brand-height: 68px;
            --nav-cat-height: 56px;
            --fixed-bar-height: 64px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease;
        }
        a:hover {
            color: var(--c-primary);
        }
        a:focus-visible {
            outline: 2px solid var(--c-accent);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button, input, select {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus-visible, input:focus-visible, select:focus-visible {
            outline: 2px solid var(--c-accent);
            outline-offset: 2px;
        }

        /* 容器 */
        .container-custom {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 1400px) {
            .container-custom { max-width: 1200px; }
        }
        @media (max-width: 992px) {
            .container-custom { max-width: 100%; padding: 0 20px; }
        }
        @media (max-width: 576px) {
            .container-custom { padding: 0 16px; }
        }

        /* Section 通用 */
        .section-block {
            padding: var(--section-padding);
            position: relative;
        }
        .section-block--dark {
            background-color: var(--bg-dark);
        }
        .section-block--panel {
            background-color: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }
        .section-heading {
            margin-bottom: 40px;
        }
        .section-heading h2 {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: 0.5px;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .section-heading p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 720px;
            margin-bottom: 0;
        }
        @media (max-width: 576px) {
            .section-heading h2 { font-size: 22px; }
            .section-heading p { font-size: 15px; }
            .section-block { padding: 56px 0; }
        }

        /* 导航 */
        .navbar-custom {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(13, 10, 18, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-subtle);
        }
        .navbar-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 14px 0;
            min-height: var(--nav-brand-height);
        }
        .navbar-logo {
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .navbar-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--grad-main);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            flex-shrink: 0;
        }
        .navbar-logo span {
            background: var(--grad-main);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .navbar-search {
            display: flex;
            align-items: center;
            gap: 10px;
            flex: 1;
            max-width: 420px;
            min-width: 180px;
        }
        .navbar-search input {
            width: 100%;
            background: var(--bg-panel);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-pill);
            padding: 9px 18px;
            color: var(--text-primary);
            font-size: 14px;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }
        .navbar-search input::placeholder {
            color: var(--text-muted);
        }
        .navbar-search input:focus {
            border-color: var(--c-primary);
            box-shadow: 0 0 0 3px rgba(255, 46, 99, 0.2);
            outline: none;
        }
        .navbar-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn-login {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: var(--text-primary);
            border-radius: var(--radius-pill);
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.25s ease;
            cursor: pointer;
        }
        .btn-login:hover {
            border-color: var(--c-primary);
            color: #fff;
        }
        .btn-join {
            background: var(--grad-main);
            border: none;
            color: #fff;
            border-radius: var(--radius-pill);
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.25s ease;
            box-shadow: 0 4px 16px rgba(255, 46, 99, 0.35);
        }
        .btn-join:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 46, 99, 0.5);
        }
        .btn-menu-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-subtle);
            color: var(--text-primary);
            border-radius: 10px;
            padding: 8px 12px;
            font-size: 18px;
            cursor: pointer;
        }
        .navbar-cat-row {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
            border-top: 1px solid var(--border-subtle);
        }
        .navbar-cat-row::-webkit-scrollbar { display: none; }
        .nav-cat-item {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all 0.25s ease;
            cursor: pointer;
            border: 1px solid transparent;
        }
        .nav-cat-item i {
            font-size: 14px;
        }
        .nav-cat-item:hover, .nav-cat-item.active {
            color: var(--text-primary);
            background: var(--bg-panel);
            border-color: var(--border-subtle);
        }
        .nav-cat-item.active {
            color: var(--c-primary);
            border-color: var(--border-highlight);
        }
        @media (max-width: 992px) {
            .navbar-search { max-width: 260px; }
            .nav-cat-item { padding: 6px 12px; font-size: 12px; }
            .nav-cat-item span { display: none; }
            .nav-cat-item i { font-size: 16px; }
        }
        @media (max-width: 768px) {
            .btn-menu-toggle { display: block; }
            .navbar-actions .btn-login, .navbar-actions .btn-join { display: none; }
            .navbar-search { display: none; }
            .navbar-brand-row { min-height: 56px; padding: 10px 0; }
            .navbar-logo { font-size: 17px; }
            .navbar-logo .logo-icon { width: 30px; height: 30px; font-size: 14px; }
        }

        /* 移动端抽屉 */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            right: -100%;
            width: 82%;
            max-width: 360px;
            height: 100vh;
            background: var(--bg-panel);
            z-index: 1060;
            transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: -20px 0 60px rgba(0, 0, 0, 0.6);
            padding: 20px;
            overflow-y: auto;
            border-left: 1px solid var(--border-subtle);
        }
        .mobile-drawer.open {
            right: 0;
        }
        .mobile-drawer .close-drawer {
            background: transparent;
            border: 1px solid var(--border-subtle);
            color: var(--text-primary);
            border-radius: 10px;
            padding: 8px 12px;
            font-size: 16px;
            cursor: pointer;
        }
        .mobile-drawer .drawer-logo {
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-drawer .drawer-cat-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-top: 16px;
        }
        .mobile-drawer .drawer-cat-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            padding: 14px 8px;
            background: var(--bg-dark);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-subtle);
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all 0.25s ease;
            text-align: center;
        }
        .mobile-drawer .drawer-cat-item i {
            font-size: 20px;
            color: var(--c-primary);
        }
        .mobile-drawer .drawer-cat-item:hover {
            border-color: var(--border-highlight);
            color: var(--text-primary);
        }
        .mobile-drawer .drawer-actions {
            margin-top: 20px;
            display: flex;
            gap: 10px;
        }
        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(0, 0, 0, 0.6);
            z-index: 1050;
            backdrop-filter: blur(2px);
        }
        .drawer-overlay.show { display: block; }
        @media (max-width: 768px) {
            .mobile-drawer { display: block; }
        }

        /* 按钮 */
        .btn-primary-custom {
            background: var(--grad-main);
            border: none;
            color: #fff;
            border-radius: var(--radius-pill);
            padding: 10px 24px;
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.25s ease;
            box-shadow: 0 8px 24px rgba(255, 46, 99, 0.35);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.3px;
        }
        .btn-primary-custom:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 32px rgba(255, 46, 99, 0.5);
            color: #fff;
        }
        .btn-primary-custom:active {
            transform: translateY(1px);
            box-shadow: 0 4px 12px rgba(255, 46, 99, 0.3);
        }
        .btn-secondary-custom {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.35);
            color: var(--text-primary);
            border-radius: var(--radius-pill);
            padding: 10px 24px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.25s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-secondary-custom:hover {
            border-color: var(--c-primary);
            color: #fff;
        }
        .btn-sm {
            padding: 7px 16px;
            font-size: 13px;
        }

        /* 数据徽章 */
        .badge-data {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 10px;
            border-radius: 8px;
            background: rgba(13, 10, 18, 0.85);
            font-family: var(--font-mono);
            font-size: 12px;
            font-weight: 600;
            color: var(--c-accent);
            letter-spacing: 0.5px;
            line-height: 1.2;
            border: 1px solid rgba(0, 229, 255, 0.3);
        }
        .badge-data--gold {
            color: var(--c-secondary);
            border-color: rgba(255, 184, 0, 0.4);
        }
        .badge-data--pink {
            color: var(--c-primary);
            border-color: var(--border-highlight);
        }
        .badge-data--green {
            color: var(--c-success);
            border-color: rgba(46, 229, 157, 0.4);
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            padding: 60px 0 80px;
            background-image: url('/assets/images/ce0e3c7d83a2c57c.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13,10,18,0.82) 0%, rgba(13,10,18,0.65) 50%, rgba(13,10,18,0.92) 100%);
            z-index: 1;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 40%, rgba(255,46,99,0.2) 0%, transparent 60%),
                        radial-gradient(ellipse at 75% 30%, rgba(255,184,0,0.15) 0%, transparent 55%),
                        radial-gradient(ellipse at 60% 80%, rgba(0,229,255,0.1) 0%, transparent 50%);
            z-index: 2;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 3;
            display: flex;
            align-items: center;
            gap: 48px;
            width: 100%;
        }
        .hero-left {
            flex: 1;
            max-width: 580px;
        }
        .hero-right {
            flex: 0 0 380px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .hero-flash-bar {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            background: rgba(255, 46, 99, 0.15);
            border: 1px solid rgba(255, 46, 99, 0.4);
            font-size: 13px;
            font-weight: 700;
            color: var(--c-primary);
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .hero-flash-bar .flash-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--c-primary);
            animation: pulse-dot 1.2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(0.8); }
        }
        .hero-countdown {
            display: flex;
            gap: 8px;
            margin-bottom: 20px;
            align-items: center;
            flex-wrap: wrap;
        }
        .hero-countdown .cd-item {
            background: var(--bg-panel);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            text-align: center;
            min-width: 56px;
        }
        .hero-countdown .cd-item .cd-num {
            font-family: var(--font-mono);
            font-size: 22px;
            font-weight: 700;
            color: var(--c-secondary);
            line-height: 1.1;
        }
        .hero-countdown .cd-item .cd-label {
            font-size: 11px;
            color: var(--text-muted);
            letter-spacing: 1px;
        }
        .hero-countdown .cd-sep {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-muted);
        }
        .hero-title {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .hero-title .highlight-text {
            background: var(--grad-main);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 28px;
            max-width: 520px;
        }
        .hero-cta {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }
        .hero-stats {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .hero-stat-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .hero-stat-item .stat-icon {
            color: var(--c-accent);
            font-size: 16px;
        }
        .hero-card-main {
            background: var(--bg-panel);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            cursor: pointer;
        }
        .hero-card-main:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-highlight);
        }
        .hero-card-main .card-img-wrap {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        .hero-card-main .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .hero-card-main .card-img-overlay-custom {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(13,10,18,0.9) 0%, transparent 50%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 16px;
        }
        .hero-card-main .card-body-custom {
            padding: 14px 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .hero-card-main .card-title {
            font-size: 16px;
            font-weight: 700;
            margin: 0;
            color: var(--text-primary);
        }
        .hero-card-main .card-meta {
            font-size: 12px;
            color: var(--text-muted);
        }
        .hero-play-btn {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--grad-main);
            border: none;
            color: #fff;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            flex-shrink: 0;
            transition: all 0.25s ease;
            box-shadow: 0 4px 16px rgba(255, 46, 99, 0.4);
        }
        .hero-play-btn:hover {
            transform: scale(1.1);
            box-shadow: 0 8px 24px rgba(255, 46, 99, 0.6);
        }
        .hero-side-badge {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            background: var(--bg-panel);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-subtle);
            font-size: 13px;
            color: var(--text-secondary);
            transition: border-color 0.25s ease;
        }
        .hero-side-badge:hover {
            border-color: var(--border-highlight);
        }
        .hero-side-badge .side-badge-icon {
            color: var(--c-secondary);
            font-size: 18px;
        }
        @media (max-width: 992px) {
            .hero-section { min-height: auto; padding: 60px 0; }
            .hero-content { flex-direction: column; gap: 32px; }
            .hero-right { flex: 0 0 auto; width: 100%; max-width: 420px; margin: 0 auto; }
            .hero-title { font-size: 32px; }
        }
        @media (max-width: 576px) {
            .hero-title { font-size: 26px; }
            .hero-subtitle { font-size: 15px; }
            .hero-cta { flex-direction: column; }
            .hero-cta .btn { width: 100%; justify-content: center; }
            .hero-countdown .cd-item { min-width: 44px; padding: 6px 8px; }
            .hero-countdown .cd-item .cd-num { font-size: 18px; }
        }

        /* 分类入口网格 */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(8, 1fr);
            gap: 14px;
        }
        .cat-grid-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 20px 10px;
            background: var(--bg-panel);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            text-align: center;
            font-size: 14px;
            font-weight: 700;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all 0.25s ease;
        }
        .cat-grid-item i {
            font-size: 26px;
            color: var(--c-primary);
            transition: color 0.25s ease;
        }
        .cat-grid-item:hover {
            border-color: var(--border-highlight);
            color: var(--text-primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .cat-grid-item:hover i {
            color: var(--c-secondary);
        }
        @media (max-width: 992px) {
            .cat-grid { grid-template-columns: repeat(4, 1fr); gap: 10px; }
        }
        @media (max-width: 576px) {
            .cat-grid { grid-template-columns: repeat(3, 1fr); gap: 8px; }
            .cat-grid-item { padding: 14px 6px; font-size: 12px; }
            .cat-grid-item i { font-size: 20px; }
        }

        /* 卖点三连 */
        .feature-trio {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 20px;
            align-items: stretch;
        }
        .feature-card {
            background: var(--bg-panel);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            padding: 28px 24px;
            transition: all 0.3s ease;
            cursor: default;
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover {
            border-color: var(--border-highlight);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .feature-card--wide {
            grid-column: span 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            gap: 20px;
        }
        .feature-card .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(255, 46, 99, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--c-primary);
            margin-bottom: 16px;
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 0;
        }
        .feature-card .badge-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-top: 14px;
        }
        @media (max-width: 992px) {
            .feature-trio { grid-template-columns: 1fr 1fr; }
            .feature-card--wide { grid-column: span 2; }
        }
        @media (max-width: 576px) {
            .feature-trio { grid-template-columns: 1fr; }
            .feature-card--wide { grid-column: span 1; }
        }

        /* 片库卡片流 */
        .film-scroll {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .film-card {
            background: var(--bg-panel);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            overflow: hidden;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .film-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-highlight);
        }
        .film-card .film-img {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        .film-card .film-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .film-card:hover .film-img img {
            transform: scale(1.05);
        }
        .film-card .film-img .badge-overlay {
            position: absolute;
            top: 10px;
            left: 10px;
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .film-card .film-body {
            padding: 14px 16px;
        }
        .film-card .film-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .film-card .film-meta {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            gap: 10px;
            align-items: center;
        }
        @media (max-width: 992px) {
            .film-scroll { grid-template-columns: repeat(2, 1fr); gap: 14px; }
        }
        @media (max-width: 576px) {
            .film-scroll { grid-template-columns: 1fr; }
        }

        /* 场景演示 */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .scene-card {
            background: var(--bg-panel);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            padding: 18px;
            text-align: center;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .scene-card:hover {
            border-color: var(--border-highlight);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .scene-card .scene-icon {
            font-size: 32px;
            color: var(--c-accent);
            margin-bottom: 10px;
        }
        .scene-card .scene-name {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .scene-card .scene-meta {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--c-secondary);
        }
        @media (max-width: 992px) {
            .scene-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
        }
        @media (max-width: 576px) {
            .scene-grid { grid-template-columns: 1fr; }
        }

        /* 数据规格参数 */
        .spec-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 14px;
        }
        .spec-item {
            background: var(--bg-panel);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            padding: 20px 16px;
            text-align: center;
            transition: border-color 0.25s ease;
        }
        .spec-item:hover {
            border-color: var(--border-highlight);
        }
        .spec-item .spec-value {
            font-family: var(--font-mono);
            font-size: 20px;
            font-weight: 700;
            color: var(--c-accent);
            margin-bottom: 6px;
            line-height: 1.2;
        }
        .spec-item .spec-label {
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 1px;
        }
        @media (max-width: 992px) {
            .spec-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
        }
        @media (max-width: 576px) {
            .spec-grid { grid-template-columns: repeat(2, 1fr); }
            .spec-item .spec-value { font-size: 16px; }
        }

        /* 用户口碑 */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }
        .review-card {
            background: var(--bg-panel);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            padding: 24px 20px;
            transition: all 0.3s ease;
        }
        .review-card:hover {
            border-color: var(--border-highlight);
            box-shadow: var(--shadow-hover);
        }
        .review-card .review-stars {
            display: flex;
            gap: 4px;
            color: var(--c-secondary);
            font-size: 14px;
            margin-bottom: 12px;
        }
        .review-card .review-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            min-height: 70px;
        }
        .review-card .review-author {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-primary);
        }
        .review-card .review-avatar {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--grad-main);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
            flex-shrink: 0;
        }
        @media (max-width: 992px) {
            .review-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 576px) {
            .review-grid { grid-template-columns: 1fr; }
        }

        /* 对比差异 */
        .compare-table-wrap {
            background: var(--bg-panel);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            overflow: hidden;
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
        }
        .compare-table th, .compare-table td {
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid var(--border-subtle);
        }
        .compare-table th {
            font-weight: 700;
            font-size: 13px;
            color: var(--text-muted);
            letter-spacing: 0.5px;
            background: var(--bg-secondary);
        }
        .compare-table td {
            color: var(--text-secondary);
        }
        .compare-table tr:last-child td {
            border-bottom: none;
        }
        .compare-table .highlight-col {
            color: var(--c-primary);
            font-weight: 700;
            background: rgba(255, 46, 99, 0.06);
        }
        .compare-table .check-icon {
            color: var(--c-success);
            margin-right: 6px;
        }
        @media (max-width: 576px) {
            .compare-table th, .compare-table td {
                padding: 12px 10px;
                font-size: 12px;
            }
        }

        /* 资讯证据 */
        .news-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }
        .news-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-panel);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            padding: 16px 18px;
            cursor: pointer;
            transition: all 0.25s ease;
        }
        .news-item:hover {
            border-color: var(--border-highlight);
            transform: translateX(4px);
        }
        .news-item .news-date {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--c-accent);
            flex-shrink: 0;
            min-width: 74px;
        }
        .news-item .news-text {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
        }
        @media (max-width: 576px) {
            .news-list { grid-template-columns: 1fr; }
        }

        /* 更新计划 */
        .timeline-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
        }
        .timeline-item {
            background: var(--bg-panel);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            padding: 18px 16px;
            text-align: center;
            transition: border-color 0.25s ease;
        }
        .timeline-item:hover {
            border-color: var(--border-highlight);
        }
        .timeline-item .tl-time {
            font-family: var(--font-mono);
            font-size: 18px;
            font-weight: 700;
            color: var(--c-secondary);
            margin-bottom: 6px;
        }
        .timeline-item .tl-desc {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 600;
        }
        @media (max-width: 992px) {
            .timeline-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 576px) {
            .timeline-grid { grid-template-columns: 1fr; }
        }

        /* FAQ */
        .accordion-custom .accordion-item {
            background: transparent;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 10px;
            overflow: hidden;
        }
        .accordion-custom .accordion-button {
            background: var(--bg-panel);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 15px;
            padding: 16px 20px;
            border: none;
            border-radius: 0;
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            background: var(--bg-panel);
            color: var(--c-primary);
            border-left: 3px solid var(--c-primary);
            box-shadow: none;
        }
        .accordion-custom .accordion-button::after {
            filter: invert(1) brightness(0.8);
        }
        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--c-accent);
            outline-offset: -2px;
        }
        .accordion-custom .accordion-body {
            background: var(--bg-panel);
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
            padding: 16px 20px;
            border-top: 1px solid var(--border-subtle);
        }

        /* 会员方案 */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            align-items: stretch;
        }
        .pricing-card {
            background: var(--bg-panel);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            padding: 28px 24px;
            text-align: center;
            transition: all 0.3s ease;
            position: relative;
            display: flex;
            flex-direction: column;
        }
        .pricing-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .pricing-card--featured {
            border-color: var(--border-highlight);
            background: linear-gradient(180deg, rgba(255, 46, 99, 0.08), var(--bg-panel) 60%);
            box-shadow: 0 20px 50px rgba(255, 46, 99, 0.2);
        }
        .pricing-card--featured::before {
            content: '最受欢迎';
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--grad-main);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.5px;
        }
        .pricing-card .price-name {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .pricing-card .price-amount {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .pricing-card .price-amount .price-unit {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-muted);
        }
        .pricing-card .price-desc {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .pricing-card .price-badge {
            margin-bottom: 16px;
            display: flex;
            gap: 6px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .pricing-card .btn {
            margin-top: auto;
            width: 100%;
        }
        @media (max-width: 992px) {
            .pricing-grid { grid-template-columns: 1fr 1fr; }
            .pricing-card--featured { grid-column: span 2; }
        }
        @media (max-width: 576px) {
            .pricing-grid { grid-template-columns: 1fr; }
            .pricing-card--featured { grid-column: span 1; }
        }

        /* 设备兼容 */
        .device-grid {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .device-item {
            display: flex;
            align-items: center;
            gap: 10px;
            background: var(--bg-panel);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 14px 20px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            transition: all 0.25s ease;
            cursor: pointer;
        }
        .device-item:hover {
            border-color: var(--border-highlight);
            color: var(--text-primary);
        }
        .device-item i {
            font-size: 20px;
            color: var(--c-accent);
        }
        .device-item .device-tag {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--c-secondary);
            background: rgba(255, 184, 0, 0.12);
            padding: 2px 8px;
            border-radius: 6px;
            margin-left: 4px;
        }
        @media (max-width: 576px) {
            .device-item { padding: 10px 14px; font-size: 12px; }
        }

        /* 保障条 */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 14px;
        }
        .guarantee-item {
            text-align: center;
            padding: 16px 10px;
            background: var(--bg-panel);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            transition: border-color 0.25s ease;
        }
        .guarantee-item:hover {
            border-color: var(--border-highlight);
        }
        .guarantee-item i {
            font-size: 22px;
            color: var(--c-success);
            margin-bottom: 8px;
        }
        .guarantee-item .g-text {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
        }
        @media (max-width: 992px) {
            .guarantee-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
        }
        @media (max-width: 576px) {
            .guarantee-grid { grid-template-columns: repeat(2, 1fr); }
            .guarantee-item .g-text { font-size: 11px; }
        }

        /* 底部固定转化条 */
        .bottom-fixed-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(13, 10, 18, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            z-index: 1020;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 10px 24px;
            min-height: var(--fixed-bar-height);
        }
        .bottom-fixed-bar .bf-text {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
        }
        .bottom-fixed-bar .bf-text strong {
            color: var(--text-primary);
        }
        .bottom-fixed-bar .bf-actions {
            display: flex;
            gap: 10px;
            align-items: center;
        }
        @media (max-width: 768px) {
            .bottom-fixed-bar {
                padding: 8px 14px;
                min-height: 60px;
                gap: 10px;
            }
            .bottom-fixed-bar .bf-text {
                font-size: 12px;
            }
            .bottom-fixed-bar .btn {
                padding: 8px 14px;
                font-size: 13px;
            }
        }
        body.bottom-bar-visible {
            padding-bottom: var(--fixed-bar-height);
        }

        /* Footer */
        .footer-custom {
            background: #08060A;
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 24px;
            margin-bottom: var(--fixed-bar-height);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 32px;
        }
        .footer-brand-col .footer-logo {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .footer-brand-col p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color 0.25s ease;
        }
        .footer-col ul li a:hover {
            color: var(--c-primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
        }
        .footer-bottom .copyright {
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom .footer-links a {
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-bottom .footer-links a:hover {
            color: var(--c-primary);
        }
        @media (max-width: 992px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
        }
        @media (max-width: 576px) {
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* 装饰性网格线 */
        .grid-bg-overlay {
            background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                              linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 32px 32px;
        }

        /* 辅助类 */
        .text-gradient {
            background: var(--grad-main);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .mt-auto { margin-top: auto; }

/* roulang page: category1 */
:root {
    --bg-dark: #0D0A12;
    --bg-panel: #17131F;
    --bg-secondary: #100A18;
    --c-primary: #FF2E63;
    --c-secondary: #FFB800;
    --c-accent: #00E5FF;
    --c-success: #2EE59D;
    --grad-main: linear-gradient(135deg, #FF2E63, #FFB800);
    --grad-dark: linear-gradient(180deg, #0D0A12, #1B1230);
    --text-primary: #F5F1FA;
    --text-secondary: rgba(245, 241, 250, 0.72);
    --text-muted: rgba(245, 241, 250, 0.48);
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-highlight: rgba(255, 46, 99, 0.6);
    --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.35);
    --shadow-hover: 0 28px 70px rgba(0, 0, 0, 0.5);
    --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, 'Segoe UI', sans-serif;
    --font-mono: 'Roboto Mono', 'IBM Plex Mono', 'SFMono-Regular', 'Consolas', 'Courier New', monospace;
    --radius-lg: 22px;
    --radius-md: 16px;
    --radius-sm: 10px;
    --radius-pill: 999px;
    --section-padding: 80px 0;
    --container-width: 1320px;
    --nav-brand-height: 68px;
    --nav-cat-height: 56px;
    --fixed-bar-height: 64px;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.25s ease, border-color 0.25s ease;
}

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

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

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

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

button:focus-visible, input:focus-visible, select:focus-visible {
    outline: 2px solid var(--c-accent);
    outline-offset: 2px;
}

.container-custom {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section-block {
    padding: var(--section-padding);
    position: relative;
}

.section-block--dark {
    background-color: var(--bg-dark);
}

.section-block--panel {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

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

.section-heading h2 {
    font-size: 28px;
    font-weight: 800;
    line-height: 1.3;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.section-heading p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 720px;
    margin-bottom: 0;
}

/* 导航 */
.navbar-custom {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: rgba(13, 10, 18, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
}

.navbar-brand-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 0;
    min-height: var(--nav-brand-height);
}

.navbar-logo {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 0.5px;
    color: var(--text-primary);
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 10px;
}

.navbar-logo .logo-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--grad-main);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: #fff;
    flex-shrink: 0;
}

.navbar-logo span {
    background: var(--grad-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-search {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    max-width: 420px;
    min-width: 180px;
}

.navbar-search input {
    width: 100%;
    background: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-pill);
    padding: 9px 18px;
    color: var(--text-primary);
    font-size: 14px;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.navbar-search input::placeholder {
    color: var(--text-muted);
}

.navbar-search input:focus {
    border-color: var(--c-primary);
    box-shadow: 0 0 0 3px rgba(255, 46, 99, 0.15);
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-brand-primary {
    background: var(--grad-main);
    color: #fff;
    border: none;
    border-radius: var(--radius-pill);
    padding: 10px 24px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(255, 46, 99, 0.35);
    transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.btn-brand-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(255, 46, 99, 0.5);
    filter: brightness(1.05);
    color: #fff;
}

.btn-brand-primary:active {
    transform: translateY(1px);
}

.btn-brand-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--radius-pill);
    padding: 9px 20px;
    font-weight: 500;
    font-size: 14px;
    cursor: pointer;
    transition: border-color 0.25s ease, color 0.25s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.btn-brand-outline:hover {
    border-color: var(--c-primary);
    color: var(--c-primary);
}

.navbar-cat-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 0;
    min-height: var(--nav-cat-height);
    overflow-x: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 46, 99, 0.4) transparent;
}

.navbar-cat-row::-webkit-scrollbar {
    height: 4px;
}

.navbar-cat-row::-webkit-scrollbar-thumb {
    background: rgba(255, 46, 99, 0.4);
    border-radius: 4px;
}

.nav-cat-item {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 16px;
    border-radius: var(--radius-pill);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid transparent;
    transition: all 0.25s ease;
    white-space: nowrap;
    flex-shrink: 0;
}

.nav-cat-item i {
    font-size: 14px;
    color: var(--text-muted);
    transition: color 0.25s ease;
}

.nav-cat-item:hover {
    color: var(--text-primary);
    background: var(--bg-panel);
    border-color: var(--border-subtle);
}

.nav-cat-item:hover i {
    color: var(--c-primary);
}

.nav-cat-item.active {
    background: rgba(255, 46, 99, 0.12);
    border-color: var(--border-highlight);
    color: var(--text-primary);
    font-weight: 600;
}

.nav-cat-item.active i {
    color: var(--c-primary);
}

/* 分类头部 C1 */
.cat-hero {
    position: relative;
    background-image: url('/assets/images/ce0e3c7d83a2c57c.webp');
    background-size: cover;
    background-position: center;
    min-height: 280px;
    display: flex;
    align-items: center;
    padding: 40px 0;
    overflow: hidden;
}

.cat-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(13, 10, 18, 0.75) 0%, rgba(13, 10, 18, 0.92) 70%, var(--bg-dark) 100%);
    z-index: 1;
}

.cat-hero::after {
    content: '';
    position: absolute;
    top: -60px;
    right: 10%;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 46, 99, 0.25), transparent 70%);
    z-index: 1;
    pointer-events: none;
}

.cat-hero-content {
    position: relative;
    z-index: 2;
    max-width: 820px;
}

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

.breadcrumb-custom a {
    color: var(--text-secondary);
    transition: color 0.25s ease;
}

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

.breadcrumb-custom .sep {
    color: var(--text-muted);
    font-size: 11px;
}

.breadcrumb-custom .current {
    color: var(--c-primary);
    font-weight: 500;
}

.cat-hero h1 {
    font-size: 36px;
    font-weight: 800;
    line-height: 1.3;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.cat-hero-desc {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 620px;
    margin-bottom: 20px;
}

.cat-hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.data-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(23, 19, 31, 0.85);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 6px 14px;
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.3px;
}

.data-badge i {
    color: var(--c-primary);
    font-size: 12px;
}

.data-badge strong {
    color: var(--c-secondary);
    font-weight: 600;
}

.cat-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

/* 分类入口图标网格 C2 */
.cat-nav-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 12px;
}

.cat-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 18px 12px;
    background: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.cat-nav-item .cat-nav-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.cat-nav-item .cat-nav-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
    transition: color 0.3s ease;
}

.cat-nav-item:hover {
    border-color: var(--border-highlight);
    transform: translateY(-3px);
    box-shadow: var(--shadow-card);
}

.cat-nav-item:hover .cat-nav-icon {
    background: rgba(255, 46, 99, 0.15);
    color: var(--c-primary);
}

.cat-nav-item:hover .cat-nav-label {
    color: var(--text-primary);
}

.cat-nav-item.active {
    border-color: var(--border-highlight);
    background: rgba(255, 46, 99, 0.08);
}

.cat-nav-item.active .cat-nav-icon {
    background: rgba(255, 46, 99, 0.15);
    color: var(--c-primary);
}

.cat-nav-item.active .cat-nav-label {
    color: var(--text-primary);
    font-weight: 600;
}

/* 筛选工具栏 C3 */
.filter-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    background: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 16px 20px;
}

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

.filter-group-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-right: 4px;
    white-space: nowrap;
}

.filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 7px 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-pill);
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.25s ease;
    white-space: nowrap;
}

.filter-btn:hover {
    border-color: var(--border-highlight);
    color: var(--text-primary);
}

.filter-btn.active {
    background: rgba(255, 46, 99, 0.12);
    border-color: var(--border-highlight);
    color: var(--text-primary);
    font-weight: 500;
}

.sort-select {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-pill);
    padding: 7px 16px;
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
    min-width: 140px;
    transition: border-color 0.25s ease;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='gray' viewBox='0 0 16 16'%3E%3Cpath d='M8 11.5L3 6.5h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 38px;
}

.sort-select:focus {
    border-color: var(--c-primary);
}

/* 视频卡片列表 C4 */
.video-card-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.video-card {
    background: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

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

.video-card-thumb {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

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

.video-card:hover .video-card-thumb img {
    transform: scale(1.04);
}

.video-card-thumb::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(13, 10, 18, 0.1) 0%, rgba(13, 10, 18, 0.5) 100%);
    pointer-events: none;
}

.video-card-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: rgba(13, 10, 18, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 6px;
    padding: 4px 10px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    color: var(--c-secondary);
    letter-spacing: 0.3px;
}

.video-card-badge--accent {
    color: var(--c-accent);
}

.video-card-badge--success {
    color: var(--c-success);
}

.video-card-body {
    padding: 16px 16px 18px;
    display: flex;
    flex-direction: column;
    flex: 1;
    gap: 10px;
}

.video-card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.45;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    font-size: 12px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.video-card-meta i {
    color: var(--text-muted);
    font-size: 11px;
}

.video-card-meta span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.video-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid var(--border-subtle);
    margin-top: auto;
    padding-top: 12px;
}

.video-card-rating {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    color: var(--c-secondary);
    font-weight: 600;
}

.video-card-link {
    font-size: 13px;
    color: var(--c-primary);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap 0.25s ease;
}

.video-card-link:hover {
    gap: 7px;
    color: var(--c-primary);
}

.load-more-wrap {
    display: flex;
    justify-content: center;
    margin-top: 32px;
}

/* 数据概览 C5 */
.overview-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 20px;
}

.overview-card {
    background: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    transition: all 0.3s ease;
}

.overview-card:hover {
    border-color: var(--border-highlight);
    transform: translateY(-3px);
    box-shadow: var(--shadow-card);
}

.overview-card--featured {
    background: linear-gradient(135deg, rgba(255, 46, 99, 0.08), rgba(255, 184, 0, 0.06)), var(--bg-panel);
    border-color: rgba(255, 46, 99, 0.25);
}

.overview-card .overview-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(255, 46, 99, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--c-primary);
    margin-bottom: 16px;
}

.overview-card h3 {
    font-size: 19px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.overview-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 14px;
}

.overview-stats {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.overview-stat {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.overview-stat .stat-value {
    font-family: var(--font-mono);
    font-size: 20px;
    font-weight: 700;
    color: var(--c-secondary);
    letter-spacing: 0.5px;
}

.overview-stat .stat-label {
    font-size: 12px;
    color: var(--text-muted);
}

/* 编辑精选 C6 */
.editor-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.editor-card {
    display: flex;
    gap: 18px;
    background: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 16px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.editor-card:hover {
    border-color: var(--border-highlight);
    transform: translateY(-3px);
    box-shadow: var(--shadow-card);
}

.editor-card-thumb {
    width: 160px;
    min-width: 160px;
    aspect-ratio: 16/9;
    border-radius: var(--radius-sm);
    overflow: hidden;
    position: relative;
}

.editor-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.editor-card-thumb::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(13, 10, 18, 0.6));
    pointer-events: none;
}

.editor-card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
    justify-content: center;
}

.editor-card-body h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.45;
}

.editor-card-body .editor-meta {
    display: flex;
    gap: 10px;
    align-items: center;
    font-size: 12px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.editor-card-body .editor-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 更新日志 C7 */
.update-timeline {
    position: relative;
    padding-left: 24px;
}

.update-timeline::before {
    content: '';
    position: absolute;
    left: 6px;
    top: 4px;
    bottom: 4px;
    width: 2px;
    background: linear-gradient(180deg, var(--c-primary), rgba(255, 46, 99, 0.1));
    border-radius: 2px;
}

.update-item {
    position: relative;
    padding: 0 0 20px 20px;
}

.update-item:last-child {
    padding-bottom: 0;
}

.update-item::before {
    content: '';
    position: absolute;
    left: -23px;
    top: 8px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--c-primary);
    border: 2px solid var(--bg-dark);
    box-shadow: 0 0 0 3px rgba(255, 46, 99, 0.2);
}

.update-item-content {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    flex-wrap: wrap;
    background: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 16px 18px;
    transition: all 0.25s ease;
}

.update-item-content:hover {
    border-color: var(--border-highlight);
}

.update-date {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
    padding-top: 3px;
}

.update-info {
    flex: 1;
    min-width: 180px;
}

.update-info h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 4px;
}

.update-info p {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 0;
}

.update-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: rgba(255, 46, 99, 0.1);
    border: 1px solid rgba(255, 46, 99, 0.3);
    border-radius: 6px;
    padding: 3px 10px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    color: var(--c-primary);
    white-space: nowrap;
}

/* FAQ C8 */
.faq-accordion-custom .accordion-item {
    background: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    overflow: hidden;
}

.faq-accordion-custom .accordion-header .accordion-button {
    background: var(--bg-panel);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 15px;
    padding: 16px 20px;
    border: none;
    box-shadow: none;
    position: relative;
    transition: all 0.25s ease;
}

.faq-accordion-custom .accordion-header .accordion-button:not(.collapsed) {
    background: rgba(255, 46, 99, 0.05);
    border-left: 3px solid var(--c-primary);
    padding-left: 20px;
}

.faq-accordion-custom .accordion-header .accordion-button:focus {
    box-shadow: none;
    border-color: var(--border-highlight);
}

.faq-accordion-custom .accordion-header .accordion-button::after {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='rgba(245,241,250,0.6)' viewBox='0 0 16 16'%3E%3Cpath d='M8 4v8M4 8h8' stroke='rgba(245,241,250,0.6)' stroke-width='1.5'/%3E%3C/svg%3E");
    transition: transform 0.3s ease;
}

.faq-accordion-custom .accordion-header .accordion-button:not(.collapsed)::after {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='rgba(245,241,250,0.6)' viewBox='0 0 16 16'%3E%3Cpath d='M8 4v8' stroke='rgba(245,241,250,0.6)' stroke-width='1.5'/%3E%3C/svg%3E");
}

.faq-accordion-custom .accordion-body {
    background: var(--bg-panel);
    border-top: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
    padding: 16px 20px;
}

/* 底部 CTA C9 */
.cta-banner {
    background: linear-gradient(135deg, rgba(255, 46, 99, 0.15), rgba(255, 184, 0, 0.1)), var(--bg-panel);
    border: 1px solid rgba(255, 46, 99, 0.3);
    border-radius: var(--radius-lg);
    padding: 40px 36px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -60px;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 46, 99, 0.25), transparent 70%);
    pointer-events: none;
}

.cta-banner-content {
    position: relative;
    z-index: 1;
}

.cta-banner h3 {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.cta-banner p {
    font-size: 15px;
    color: var(--text-secondary);
    margin: 0;
    max-width: 500px;
}

.cta-banner-actions {
    position: relative;
    z-index: 1;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* 页脚 */
.footer-custom {
    background: #08060C;
    border-top: 1px solid var(--border-subtle);
    padding: 48px 0 24px;
    margin-top: 0;
}

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

.footer-brand-col .footer-logo {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
    background: var(--grad-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-brand-col p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.7;
    margin: 0;
}

.footer-col h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 14px;
    letter-spacing: 0.5px;
}

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

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

.footer-col ul li a {
    font-size: 13px;
    color: var(--text-secondary);
    transition: color 0.25s ease;
}

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

.footer-bottom {
    border-top: 1px solid var(--border-subtle);
    padding-top: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.copyright {
    font-size: 13px;
    color: var(--text-muted);
}

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

.footer-links a {
    font-size: 13px;
    color: var(--text-secondary);
    transition: color 0.25s ease;
}

.footer-links a:hover {
    color: var(--c-primary);
}

/* 响应式 */
@media (max-width: 1200px) {
    .video-card-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .overview-grid {
        grid-template-columns: 1fr 1fr;
    }
    .overview-card--featured {
        grid-column: span 2;
    }
}

@media (max-width: 992px) {
    .cat-nav-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    .video-card-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .editor-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr 1fr;
    }
    .footer-brand-col {
        grid-column: span 3;
    }
    .cat-hero h1 {
        font-size: 28px;
    }
}

@media (max-width: 768px) {
    .navbar-brand-row {
        flex-wrap: wrap;
        gap: 10px;
    }
    .navbar-search {
        order: 3;
        max-width: 100%;
        flex-basis: 100%;
        min-width: calc(100% - 48px);
    }
    .navbar-logo {
        font-size: 17px;
    }
    .navbar-logo .logo-icon {
        width: 32px;
        height: 32px;
        font-size: 15px;
        border-radius: 8px;
    }
    .cat-nav-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
    }
    .cat-nav-item {
        padding: 12px 8px;
    }
    .cat-nav-item .cat-nav-icon {
        width: 36px;
        height: 36px;
        font-size: 15px;
    }
    .cat-nav-item .cat-nav-label {
        font-size: 12px;
    }
    .video-card-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    .overview-grid {
        grid-template-columns: 1fr;
    }
    .overview-card--featured {
        grid-column: span 1;
    }
    .editor-card {
        flex-direction: column;
    }
    .editor-card-thumb {
        width: 100%;
        min-width: auto;
    }
    .filter-toolbar {
        flex-direction: column;
        align-items: flex-start;
    }
    .cta-banner {
        flex-direction: column;
        text-align: center;
        align-items: center;
        padding: 28px 20px;
    }
    .cta-banner-actions {
        justify-content: center;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .footer-brand-col {
        grid-column: span 2;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        justify-content: center;
    }
    .section-block {
        padding: 56px 0;
    }
    .section-heading h2 {
        font-size: 22px;
    }
    .cat-hero {
        min-height: auto;
        padding: 28px 0;
    }
    .cat-hero h1 {
        font-size: 24px;
    }
    .cat-hero-desc {
        font-size: 14px;
    }
}

@media (max-width: 520px) {
    .video-card-grid {
        grid-template-columns: 1fr;
    }
    .cat-nav-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .navbar-cat-row {
        gap: 4px;
        padding: 6px 0;
    }
    .nav-cat-item {
        padding: 6px 12px;
        font-size: 12px;
        gap: 5px;
    }
    .nav-cat-item i {
        font-size: 12px;
    }
    .btn-brand-primary,
    .btn-brand-outline {
        padding: 8px 16px;
        font-size: 13px;
    }
    .cat-hero-badges {
        gap: 6px;
    }
    .data-badge {
        font-size: 11px;
        padding: 4px 10px;
    }
    .update-item-content {
        flex-direction: column;
        gap: 6px;
    }
    .update-date {
        padding-top: 0;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .footer-brand-col {
        grid-column: span 1;
    }
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}