/* roulang page: index */
:root {
            --bg: #15131A;
            --bg-alt: #1E1B26;
            --bg-card: #201D2A;
            --bg-card-hover: #282436;
            --brand-1: #FF3D4A;
            --brand-2: #FF8A3D;
            --brand-gradient: linear-gradient(135deg, #FF3D4A 0%, #FF8A3D 100%);
            --brand-gradient-soft: linear-gradient(135deg, rgba(255,61,74,0.15) 0%, rgba(255,138,61,0.15) 100%);
            --military: #3E5C50;
            --navy-slate: #353B4D;
            --text: #F7F5F0;
            --text-weak: #A8A4B3;
            --text-muted: #7C7888;
            --border: rgba(247,245,240,0.08);
            --border-light: rgba(247,245,240,0.14);
            --radius-lg: 24px;
            --radius-md: 18px;
            --radius-sm: 14px;
            --radius-pill: 999px;
            --shadow-card: 0 12px 32px rgba(0,0,0,0.25);
            --shadow-card-hover: 0 20px 44px rgba(0,0,0,0.4);
            --shadow-btn: 0 6px 20px rgba(255,61,74,0.3);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 48px;
            --spacing-xl: 72px;
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: var(--font-stack);
            background: var(--bg);
            color: var(--text);
            line-height: 1.65;
            margin: 0;
            padding: 0;
            font-size: 16px;
            overflow-x: hidden;
        }

        a {
            color: var(--brand-1);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover, a:focus {
            color: var(--brand-2);
            outline: none;
        }

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

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

        button, .btn {
            font-family: var(--font-stack);
        }

        .container {
            max-width: 1200px;
            padding-left: var(--spacing-sm);
            padding-right: var(--spacing-sm);
        }

        @media (min-width: 768px) {
            .container {
                padding-left: var(--spacing-md);
                padding-right: var(--spacing-md);
            }
        }

        /* ========== 顶部信息条 ========== */
        .top-bar {
            background: #0F0D14;
            border-bottom: 1px solid rgba(247,245,240,0.05);
            height: 36px;
            display: flex;
            align-items: center;
            font-size: 13px;
            position: relative;
            z-index: 1050;
        }

        .top-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .top-bar-left {
            color: var(--text-muted);
            letter-spacing: 0.5px;
        }

        .top-bar-right {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }

        .top-bar-right a {
            color: var(--text-weak);
            font-size: 13px;
            transition: var(--transition);
            padding: 4px 8px;
            border-radius: 6px;
        }

        .top-bar-right a:hover {
            color: var(--text);
            background: rgba(247,245,240,0.06);
        }

        .top-bar-sep {
            width: 1px;
            height: 14px;
            background: rgba(247,245,240,0.15);
            margin: 0 4px;
        }

        /* ========== 主导航 ========== */
        .main-header {
            background: rgba(21,19,26,0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1040;
            transition: var(--transition);
        }

        .main-header.scrolled {
            box-shadow: 0 8px 32px rgba(0,0,0,0.5);
        }

        .navbar-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: var(--spacing-sm);
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.3px;
            white-space: nowrap;
            transition: var(--transition);
        }

        .navbar-brand-custom:hover {
            color: var(--text);
            opacity: 0.88;
        }

        .brand-icon {
            width: 36px;
            height: 36px;
            background: var(--brand-gradient);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }

        .nav-links .nav-link-custom {
            color: var(--text-weak);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: 10px;
            transition: var(--transition);
            position: relative;
            letter-spacing: 0.3px;
        }

        .nav-links .nav-link-custom:hover,
        .nav-links .nav-link-custom:focus {
            color: var(--text);
            background: rgba(247,245,240,0.06);
        }

        .nav-links .nav-link-custom.active {
            color: #fff;
            background: rgba(255,61,74,0.12);
        }

        .nav-links .nav-link-custom.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background: var(--brand-gradient);
            border-radius: 2px;
        }

        .nav-cta {
            background: var(--brand-gradient);
            color: #fff !important;
            padding: 9px 20px !important;
            border-radius: var(--radius-pill) !important;
            font-weight: 600;
            box-shadow: var(--shadow-btn);
        }

        .nav-cta:hover, .nav-cta:focus {
            opacity: 0.9;
            transform: translateY(-1px);
            box-shadow: 0 8px 28px rgba(255,61,74,0.4);
        }

        .navbar-toggler-custom {
            display: none;
            background: transparent;
            border: 1px solid var(--border-light);
            border-radius: 10px;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            color: var(--text);
            font-size: 20px;
            cursor: pointer;
            transition: var(--transition);
        }

        .navbar-toggler-custom:hover {
            background: rgba(247,245,240,0.06);
        }

        /* ========== Hero ========== */
        .hero-section {
            position: relative;
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            overflow: hidden;
            background: var(--bg);
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: -120px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255,61,74,0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255,138,61,0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
        }

        .hero-text-wrap {
            max-width: 560px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--brand-gradient-soft);
            border: 1px solid rgba(255,61,74,0.25);
            color: var(--brand-2);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.5px;
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            background: var(--brand-1);
            border-radius: 50%;
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { transform: scale(1); opacity: 1; }
            50% { transform: scale(1.5); opacity: 0.5; }
        }

        .hero-title {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: 0.3px;
            margin-bottom: var(--spacing-sm);
            color: #fff;
        }

        .hero-title span {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }

        .hero-subtitle {
            font-size: 16px;
            color: var(--text-weak);
            line-height: 1.8;
            margin-bottom: var(--spacing-md);
            max-width: 520px;
        }

        .hero-cta-group {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
            margin-bottom: var(--spacing-md);
        }

        .btn-brand {
            background: var(--brand-gradient);
            color: #fff;
            border: none;
            padding: 13px 28px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.3px;
            cursor: pointer;
            box-shadow: var(--shadow-btn);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-brand:hover, .btn-brand:focus {
            opacity: 0.9;
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(255,61,74,0.45);
            color: #fff;
        }

        .btn-outline-brand {
            background: transparent;
            color: var(--text);
            border: 1.5px solid var(--border-light);
            padding: 12px 26px;
            border-radius: var(--radius-pill);
            font-weight: 500;
            font-size: 15px;
            letter-spacing: 0.3px;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline-brand:hover, .btn-outline-brand:focus {
            background: rgba(247,245,240,0.06);
            border-color: var(--brand-2);
            color: var(--brand-2);
            transform: translateY(-2px);
        }

        /* Hero 问卷卡片 */
        .hero-quiz-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-card);
            position: relative;
            z-index: 2;
        }

        .hero-quiz-title {
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
        }

        .hero-quiz-subtitle {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: var(--spacing-sm);
        }

        .quiz-progress {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: var(--spacing-sm);
        }

        .quiz-progress-bar {
            flex: 1;
            height: 6px;
            background: rgba(247,245,240,0.08);
            border-radius: 3px;
            overflow: hidden;
        }

        .quiz-progress-bar .fill {
            height: 100%;
            width: 40%;
            background: var(--brand-gradient);
            border-radius: 3px;
            transition: width 0.5s ease;
        }

        .quiz-progress-text {
            font-size: 12px;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .quiz-question {
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            margin-bottom: var(--spacing-sm);
        }

        .quiz-options {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px;
            margin-bottom: var(--spacing-sm);
        }

        .quiz-option {
            background: rgba(247,245,240,0.04);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            font-size: 13px;
            color: var(--text-weak);
            cursor: pointer;
            transition: var(--transition);
            text-align: left;
        }

        .quiz-option:hover, .quiz-option:focus {
            background: rgba(255,61,74,0.08);
            border-color: rgba(255,61,74,0.3);
            color: var(--text);
        }

        .quiz-option.selected {
            background: var(--brand-gradient-soft);
            border-color: var(--brand-1);
            color: var(--text);
        }

        .quiz-result-preview {
            background: rgba(247,245,240,0.03);
            border: 1px dashed var(--border-light);
            border-radius: var(--radius-sm);
            padding: var(--spacing-sm);
            margin-top: var(--spacing-sm);
        }

        .quiz-result-preview .preview-label {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 6px;
        }

        .quiz-result-preview .preview-content {
            font-size: 14px;
            color: var(--text-weak);
        }

        /* ========== 通用 Section ========== */
        .section-standard {
            padding: var(--spacing-xl) 0;
            position: relative;
        }

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

        .section-header {
            margin-bottom: var(--spacing-lg);
            max-width: 680px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--brand-2);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            line-height: 1.35;
            letter-spacing: 0.3px;
            margin-bottom: var(--spacing-xs);
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.8;
            max-width: 600px;
            margin-bottom: 0;
        }

        /* ========== 数据徽章 ========== */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-sm);
        }

        .stat-badge {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            text-align: center;
            transition: var(--transition);
        }

        .stat-badge:hover {
            border-color: rgba(255,138,61,0.3);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .stat-number {
            font-size: 32px;
            font-weight: 700;
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
            line-height: 1.2;
            letter-spacing: 1px;
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-weak);
            margin-top: 6px;
            letter-spacing: 0.5px;
        }

        /* ========== 片库轨道 ========== */
        .library-track {
            display: flex;
            gap: var(--spacing-sm);
            overflow-x: auto;
            padding-bottom: var(--spacing-sm);
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--brand-2) transparent;
        }

        .library-track::-webkit-scrollbar {
            height: 6px;
        }

        .library-track::-webkit-scrollbar-track {
            background: transparent;
        }

        .library-track::-webkit-scrollbar-thumb {
            background: var(--brand-2);
            border-radius: 3px;
        }

        .library-card {
            flex: 0 0 260px;
            scroll-snap-align: start;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            cursor: pointer;
            position: relative;
        }

        .library-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(255,138,61,0.35);
        }

        .library-card .lib-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            background: var(--navy-slate);
            transition: var(--transition);
        }

        .library-card:hover .lib-img {
            opacity: 0.85;
        }

        .library-card .lib-body {
            padding: var(--spacing-sm);
        }

        .library-card .lib-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.4;
        }

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

        .library-card .lib-cta-overlay {
            position: absolute;
            top: 10px;
            right: 10px;
            background: var(--brand-gradient);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: var(--radius-pill);
            opacity: 0;
            transform: translateY(-4px);
            transition: var(--transition);
        }

        .library-card:hover .lib-cta-overlay {
            opacity: 1;
            transform: translateY(0);
        }

        /* ========== 功能卡片 ========== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-sm);
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--brand-gradient);
            opacity: 0;
            transition: var(--transition);
        }

        .feature-card:hover {
            border-color: rgba(255,138,61,0.3);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            background: var(--brand-gradient-soft);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--brand-2);
            margin-bottom: var(--spacing-sm);
        }

        .feature-num {
            font-size: 12px;
            font-weight: 700;
            color: var(--text-muted);
            letter-spacing: 1px;
            margin-bottom: 6px;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ========== 使用场景 ========== */
        .scenario-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-md);
        }

        .scenario-panel {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            transition: var(--transition);
        }

        .scenario-panel:hover {
            border-color: rgba(255,138,61,0.3);
            box-shadow: var(--shadow-card-hover);
        }

        .scenario-panel h3 {
            font-size: 20px;
            font-weight: 600;
            color: #fff;
            margin-bottom: var(--spacing-sm);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .scenario-panel h3 .icon {
            color: var(--brand-2);
            font-size: 22px;
        }

        .scenario-panel p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.8;
            margin-bottom: var(--spacing-sm);
        }

        .scenario-tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .scenario-tag {
            background: rgba(247,245,240,0.05);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            padding: 5px 12px;
            font-size: 12px;
            color: var(--text-weak);
        }

        /* ========== 播放器演示 ========== */
        .player-demo-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .player-frame {
            aspect-ratio: 16/9;
            background: #0F0D14;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .player-frame .player-bg {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.5;
        }

        .player-frame .player-center-btn {
            position: relative;
            z-index: 2;
            width: 72px;
            height: 72px;
            background: var(--brand-gradient);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: #fff;
            cursor: pointer;
            box-shadow: 0 8px 32px rgba(255,61,74,0.5);
            transition: var(--transition);
        }

        .player-frame .player-center-btn:hover {
            transform: scale(1.1);
            box-shadow: 0 12px 40px rgba(255,61,74,0.6);
        }

        .player-controls {
            padding: var(--spacing-sm) var(--spacing-md);
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }

        .player-progress {
            flex: 1;
            height: 6px;
            background: rgba(247,245,240,0.1);
            border-radius: 3px;
            overflow: hidden;
            min-width: 120px;
        }

        .player-progress .fill {
            height: 100%;
            width: 35%;
            background: var(--brand-gradient);
            border-radius: 3px;
        }

        .player-time {
            font-size: 12px;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .player-btn {
            background: transparent;
            border: none;
            color: var(--text-weak);
            font-size: 16px;
            cursor: pointer;
            padding: 6px;
            transition: var(--transition);
            border-radius: 8px;
        }

        .player-btn:hover {
            color: var(--text);
            background: rgba(247,245,240,0.06);
        }

        .player-danmaku {
            padding: var(--spacing-xs) var(--spacing-md) var(--spacing-sm);
            border-top: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            flex-wrap: wrap;
        }

        .danmaku-msg {
            font-size: 12px;
            color: var(--text-muted);
            background: rgba(247,245,240,0.04);
            padding: 4px 10px;
            border-radius: var(--radius-pill);
        }

        /* ========== 成功案例 ========== */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-sm);
        }

        .case-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            transition: var(--transition);
        }

        .case-card:hover {
            border-color: rgba(255,61,74,0.3);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        .case-card .case-number {
            font-size: 40px;
            font-weight: 700;
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
            line-height: 1.1;
        }

        .case-card .case-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-top: 4px;
        }

        .case-card p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.6;
            margin-top: 6px;
            margin-bottom: 0;
        }

        /* ========== 套餐价格 ========== */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
            align-items: stretch;
        }

        .pricing-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .pricing-card:hover {
            border-color: rgba(255,138,61,0.35);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .pricing-card.featured {
            border: 2px solid var(--brand-1);
            background: linear-gradient(180deg, rgba(255,61,74,0.05) 0%, var(--bg-card) 60%);
        }

        .pricing-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--brand-gradient);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
        }

        .pricing-name {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 12px;
        }

        .pricing-price {
            font-size: 36px;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
        }

        .pricing-price .currency {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-weak);
            margin-right: 2px;
        }

        .pricing-price .period {
            font-size: 13px;
            font-weight: 400;
            color: var(--text-muted);
            margin-left: 4px;
        }

        .pricing-features {
            list-style: none;
            padding: 0;
            margin: var(--spacing-sm) 0 var(--spacing-md);
            flex: 1;
        }

        .pricing-features li {
            font-size: 13px;
            color: var(--text-weak);
            padding: 6px 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .pricing-features li i {
            color: var(--brand-2);
            font-size: 12px;
            flex-shrink: 0;
        }

        /* ========== 评价墙 ========== */
        .review-summary {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-md);
            flex-wrap: wrap;
        }

        .review-score {
            font-size: 56px;
            font-weight: 700;
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
            line-height: 1;
        }

        .review-stars {
            color: var(--brand-2);
            font-size: 18px;
            letter-spacing: 2px;
        }

        .review-count {
            font-size: 14px;
            color: var(--text-muted);
        }

        .review-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-sm);
        }

        .review-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            transition: var(--transition);
        }

        .review-card:hover {
            border-color: rgba(255,138,61,0.3);
            transform: translateY(-3px);
        }

        .review-card .reviewer {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
        }

        .reviewer-avatar {
            width: 40px;
            height: 40px;
            background: var(--navy-slate);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--text);
            flex-shrink: 0;
        }

        .reviewer-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
        }

        .reviewer-info {
            font-size: 12px;
            color: var(--text-muted);
        }

        .review-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ========== 用户口碑 ========== */
        .word-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-sm);
        }

        .word-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            text-align: center;
            transition: var(--transition);
        }

        .word-card:hover {
            border-color: rgba(255,138,61,0.3);
            transform: translateY(-3px);
        }

        .word-card .word-icon {
            font-size: 28px;
            color: var(--brand-2);
            margin-bottom: 8px;
        }

        .word-card .word-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }

        .word-card p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ========== CMS 资讯列表 ========== */
        .cms-news-section .cms-list-container {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: var(--spacing-md);
        }

        .cms-main-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .cms-card-row {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: var(--spacing-sm);
            display: flex;
            gap: var(--spacing-sm);
            transition: var(--transition);
            cursor: pointer;
        }

        .cms-card-row:hover {
            border-color: rgba(255,138,61,0.3);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        .cms-card-row .cms-thumb {
            width: 120px;
            aspect-ratio: 16/10;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
            background: var(--navy-slate);
        }

        .cms-card-row .cms-info {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .cms-card-row .cms-cat {
            font-size: 12px;
            font-weight: 600;
            color: var(--brand-2);
            margin-bottom: 4px;
        }

        .cms-card-row .cms-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 4px;
        }

        .cms-card-row .cms-excerpt {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.6;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .cms-card-row .cms-meta {
            font-size: 12px;
            color: var(--text-muted);
        }

        .cms-sidebar {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .cms-side-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: var(--spacing-sm);
            transition: var(--transition);
            cursor: pointer;
        }

        .cms-side-card:hover {
            border-color: rgba(255,138,61,0.3);
            transform: translateY(-3px);
        }

        .cms-side-card .cms-side-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 6px;
        }

        .cms-side-card .cms-side-meta {
            font-size: 12px;
            color: var(--text-muted);
        }

        .cms-empty {
            text-align: center;
            padding: var(--spacing-lg);
            color: var(--text-muted);
            font-size: 15px;
        }

        /* ========== FAQ 手风琴 ========== */
        .faq-accordion .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md) !important;
            margin-bottom: var(--spacing-xs);
            overflow: hidden;
        }

        .faq-accordion .accordion-button {
            background: var(--bg-card);
            color: var(--text);
            font-weight: 600;
            font-size: 15px;
            padding: var(--spacing-md);
            border: none;
            box-shadow: none;
            border-radius: var(--radius-md) !important;
            transition: var(--transition);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(255,61,74,0.08);
            color: var(--brand-2);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: var(--brand-2);
        }

        .faq-accordion .accordion-button::after {
            filter: invert(1);
            opacity: 0.6;
        }

        .faq-accordion .accordion-body {
            background: var(--bg-card);
            color: var(--text-weak);
            font-size: 14px;
            line-height: 1.8;
            padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
        }

        /* ========== CTA ========== */
        .cta-card {
            background: var(--brand-gradient);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl) var(--spacing-lg);
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: 0 16px 48px rgba(255,61,74,0.3);
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: rgba(255,255,255,0.08);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-card::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 300px;
            height: 300px;
            background: rgba(255,255,255,0.06);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-card .cta-inner {
            position: relative;
            z-index: 2;
        }

        .cta-card h2 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-xs);
            letter-spacing: 0.3px;
        }

        .cta-card p {
            font-size: 15px;
            color: rgba(255,255,255,0.85);
            line-height: 1.8;
            max-width: 520px;
            margin: 0 auto var(--spacing-md);
        }

        .cta-btn-white {
            background: #fff;
            color: var(--brand-1);
            border: none;
            padding: 14px 32px;
            border-radius: var(--radius-pill);
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.3px;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 6px 20px rgba(0,0,0,0.2);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .cta-btn-white:hover, .cta-btn-white:focus {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(0,0,0,0.3);
            color: var(--brand-1);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #0F0D14;
            border-top: 1px solid var(--border);
            padding: var(--spacing-xl) 0 var(--spacing-sm);
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }

        .footer-brand-col .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: var(--spacing-sm);
        }

        .footer-brand-col .footer-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.3px;
        }

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

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

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

        .footer-col ul li a:hover {
            color: var(--brand-2);
        }

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

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1199px) {
            .hero-title {
                font-size: 34px;
            }
            .section-title {
                font-size: 24px;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .review-cards {
                grid-template-columns: repeat(2, 1fr);
            }
            .word-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cms-news-section .cms-list-container {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 991px) {
            .navbar-toggler-custom {
                display: flex;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(21,19,26,0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--border);
                padding: var(--spacing-sm);
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                box-shadow: 0 16px 40px rgba(0,0,0,0.5);
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links .nav-link-custom {
                padding: 12px 16px;
                text-align: left;
                border-radius: 10px;
            }

            .nav-links .nav-link-custom.active::after {
                display: none;
            }

            .nav-cta {
                text-align: center;
                margin-top: 6px;
            }

            .hero-content {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }

            .hero-text-wrap {
                max-width: 100%;
            }

            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-xs);
            }

            .scenario-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
            }

            .pricing-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
            }

            .case-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
            }
        }

        @media (max-width: 767px) {
            .hero-title {
                font-size: 28px;
                line-height: 1.35;
            }

            .hero-subtitle {
                font-size: 14px;
            }

            .section-title {
                font-size: 22px;
            }

            .section-standard {
                padding: var(--spacing-lg) 0;
            }

            .feature-grid {
                grid-template-columns: 1fr;
            }

            .review-cards {
                grid-template-columns: 1fr;
            }

            .word-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .quiz-options {
                grid-template-columns: 1fr;
            }

            .library-card {
                flex: 0 0 220px;
            }

            .cms-card-row {
                flex-direction: column;
            }

            .cms-card-row .cms-thumb {
                width: 100%;
                aspect-ratio: 16/9;
            }

            .cta-card h2 {
                font-size: 22px;
            }

            .stat-number {
                font-size: 26px;
            }

            .btn-brand, .btn-outline-brand, .cta-btn-white {
                width: 100%;
                justify-content: center;
                min-height: 44px;
            }

            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }

            .top-bar {
                font-size: 12px;
                height: 32px;
            }

            .top-bar-right {
                gap: 4px;
            }

            .top-bar-right a {
                font-size: 12px;
                padding: 2px 4px;
            }
        }

        @media (max-width: 575px) {
            .hero-title {
                font-size: 24px;
            }

            .section-title {
                font-size: 20px;
            }

            .stats-bar {
                grid-template-columns: 1fr 1fr;
                gap: 6px;
            }

            .stat-number {
                font-size: 22px;
            }

            .word-grid {
                grid-template-columns: 1fr 1fr;
                gap: 6px;
            }

            .word-card {
                padding: var(--spacing-xs);
            }

            .hero-quiz-card {
                padding: var(--spacing-md);
            }

            .container {
                padding-left: 12px;
                padding-right: 12px;
            }
        }

/* roulang page: article */
:root {
        --bg: #15131A;
        --bg-alt: #1E1B26;
        --bg-card: #201D2A;
        --bg-card-hover: #282436;
        --brand-1: #FF3D4A;
        --brand-2: #FF8A3D;
        --brand-gradient: linear-gradient(135deg, #FF3D4A 0%, #FF8A3D 100%);
        --brand-gradient-soft: linear-gradient(135deg, rgba(255,61,74,0.15) 0%, rgba(255,138,61,0.15) 100%);
        --military: #3E5C50;
        --navy-slate: #353B4D;
        --text: #F7F5F0;
        --text-weak: #A8A4B3;
        --text-muted: #7C7888;
        --border: rgba(247,245,240,0.08);
        --border-light: rgba(247,245,240,0.14);
        --radius-lg: 24px;
        --radius-md: 18px;
        --radius-sm: 14px;
        --radius-pill: 999px;
        --shadow-card: 0 12px 32px rgba(0,0,0,0.25);
        --shadow-card-hover: 0 20px 44px rgba(0,0,0,0.4);
        --shadow-btn: 0 6px 20px rgba(255,61,74,0.3);
        --spacing-xs: 8px;
        --spacing-sm: 16px;
        --spacing-md: 24px;
        --spacing-lg: 48px;
        --spacing-xl: 72px;
        --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
        --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    html {
        scroll-behavior: smooth;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    body {
        font-family: var(--font-stack);
        background: var(--bg);
        color: var(--text);
        line-height: 1.65;
        margin: 0;
        padding: 0;
        font-size: 16px;
        overflow-x: hidden;
    }
    a {
        color: var(--brand-1);
        text-decoration: none;
        transition: var(--transition);
    }
    a:hover, a:focus {
        color: var(--brand-2);
        outline: none;
    }
    a:focus-visible {
        outline: 2px solid var(--brand-2);
        outline-offset: 4px;
        border-radius: 4px;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    button, .btn {
        font-family: var(--font-stack);
    }
    .container {
        max-width: 1200px;
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
    .top-bar {
        background: #0F0D14;
        border-bottom: 1px solid var(--border);
        font-size: 13px;
        padding: 6px 0;
    }
    .top-bar .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .top-bar-left {
        color: var(--text-muted);
    }
    .top-bar-right {
        display: flex;
        gap: 4px;
        flex-wrap: wrap;
    }
    .top-bar-right a {
        color: var(--text-weak);
        padding: 4px 10px;
        border-radius: 6px;
        transition: var(--transition);
    }
    .top-bar-right a:hover {
        color: var(--text);
        background: rgba(247,245,240,0.06);
    }
    .main-header {
        background: rgba(21,19,26,0.92);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border);
        position: sticky;
        top: 0;
        z-index: 1040;
        transition: var(--transition);
    }
    .main-header.scrolled {
        box-shadow: 0 8px 32px rgba(0,0,0,0.5);
    }
    .navbar-content {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 68px;
        gap: var(--spacing-sm);
    }
    .navbar-brand-custom {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 20px;
        font-weight: 700;
        color: var(--text);
        letter-spacing: 0.3px;
        white-space: nowrap;
        transition: var(--transition);
    }
    .navbar-brand-custom:hover {
        color: var(--text);
        opacity: 0.88;
    }
    .brand-icon {
        width: 36px;
        height: 36px;
        background: var(--brand-gradient);
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 16px;
        color: #fff;
        flex-shrink: 0;
    }
    .nav-links {
        display: flex;
        align-items: center;
        gap: 4px;
        flex-wrap: wrap;
    }
    .nav-links .nav-link-custom {
        color: var(--text-weak);
        font-size: 15px;
        font-weight: 500;
        padding: 8px 14px;
        border-radius: 10px;
        transition: var(--transition);
        position: relative;
        letter-spacing: 0.3px;
    }
    .nav-links .nav-link-custom:hover,
    .nav-links .nav-link-custom:focus {
        color: var(--text);
        background: rgba(247,245,240,0.06);
    }
    .nav-links .nav-link-custom.active {
        color: #fff;
        background: rgba(255,61,74,0.12);
    }
    .nav-links .nav-link-custom.active::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 24px;
        height: 2px;
        background: var(--brand-gradient);
        border-radius: 2px;
    }
    .nav-cta {
        background: var(--brand-gradient);
        color: #fff !important;
        padding: 9px 20px !important;
        border-radius: var(--radius-pill) !important;
        font-weight: 600;
        box-shadow: var(--shadow-btn);
    }
    .navbar-toggler-custom {
        background: transparent;
        border: 1px solid var(--border-light);
        border-radius: 10px;
        padding: 8px 12px;
        color: var(--text);
        display: none;
        font-size: 20px;
    }
    .navbar-toggler-custom:hover {
        background: rgba(247,245,240,0.06);
    }
    .main {
        min-height: 60vh;
    }
    .article-section {
        padding: var(--spacing-lg) 0;
    }
    .article-section-alt {
        background: var(--bg-alt);
    }
    .section-title {
        font-size: 28px;
        font-weight: 700;
        margin-bottom: var(--spacing-sm);
        letter-spacing: 0.5px;
        color: var(--text);
    }
    .section-subtitle {
        font-size: 16px;
        color: var(--text-weak);
        margin-bottom: var(--spacing-md);
    }
    .breadcrumb {
        background: transparent;
        padding: 0;
        margin: 0 0 var(--spacing-sm) 0;
        display: flex;
        flex-wrap: wrap;
    }
    .breadcrumb ol {
        list-style: none;
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        padding: 0;
        margin: 0;
        font-size: 14px;
    }
    .breadcrumb li {
        display: flex;
        align-items: center;
        gap: 8px;
        color: var(--text-muted);
    }
    .breadcrumb li:not(:last-child)::after {
        content: '/';
        color: var(--text-muted);
        margin-left: 4px;
    }
    .breadcrumb a {
        color: var(--text-weak);
    }
    .breadcrumb a:hover {
        color: var(--text);
    }
    .article-head-card {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: var(--spacing-lg);
        margin-bottom: var(--spacing-md);
    }
    .article-head-card h1 {
        font-size: 34px;
        font-weight: 700;
        line-height: 1.3;
        margin: 0 0 var(--spacing-sm);
        color: var(--text);
        letter-spacing: 0.3px;
    }
    .article-excerpt {
        font-size: 17px;
        color: var(--text-weak);
        margin: 0 0 var(--spacing-md);
        line-height: 1.7;
    }
    .article-meta {
        display: flex;
        flex-wrap: wrap;
        gap: var(--spacing-sm);
        font-size: 14px;
        color: var(--text-muted);
        border-top: 1px solid var(--border);
        padding-top: var(--spacing-md);
    }
    .article-meta span {
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .article-meta i {
        color: var(--brand-2);
    }
    .article-content {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: var(--spacing-lg);
        max-width: 800px;
        margin: 0 auto var(--spacing-md);
        font-size: 17px;
        line-height: 1.8;
        color: var(--text);
    }
    .article-content h2 {
        font-size: 26px;
        font-weight: 700;
        margin: 1.2em 0 0.5em;
        color: var(--text);
    }
    .article-content h3 {
        font-size: 22px;
        font-weight: 600;
        margin: 1.1em 0 0.4em;
        color: var(--text);
    }
    .article-content p {
        margin: 0 0 1em;
    }
    .article-content blockquote {
        border-left: 4px solid var(--brand-1);
        padding-left: var(--spacing-md);
        color: var(--text-weak);
        font-style: italic;
        margin: 1em 0;
    }
    .article-content ul,
    .article-content ol {
        margin: 0 0 1em 1.5em;
    }
    .article-content img {
        border-radius: var(--radius-md);
        margin: var(--spacing-sm) 0;
    }
    .article-content a {
        color: var(--brand-2);
        text-decoration: underline;
    }
    .article-cover-section {
        max-width: 800px;
        margin: 0 auto var(--spacing-md);
    }
    .article-cover-section img {
        width: 100%;
        border-radius: var(--radius-lg);
        border: 1px solid var(--border);
    }
    .article-tags {
        max-width: 800px;
        margin: 0 auto var(--spacing-md);
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        align-items: center;
    }
    .tag-label {
        color: var(--text-muted);
        font-size: 14px;
        font-weight: 600;
    }
    .tag-link {
        background: var(--bg-card);
        border: 1px solid var(--border);
        color: var(--text-weak);
        padding: 6px 14px;
        border-radius: var(--radius-pill);
        font-size: 14px;
        transition: var(--transition);
    }
    .tag-link:hover {
        color: #fff;
        background: var(--brand-gradient-soft);
        border-color: rgba(255,61,74,0.4);
    }
    .tag-plain {
        cursor: default;
    }
    .related-section {
        padding: var(--spacing-lg) 0;
    }
    .related-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: var(--spacing-md);
    }
    .related-card {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        overflow: hidden;
        transition: var(--transition);
        box-shadow: var(--shadow-card);
    }
    .related-card:hover {
        background: var(--bg-card-hover);
        box-shadow: var(--shadow-card-hover);
        transform: translateY(-4px);
    }
    .related-card-link {
        display: block;
        color: var(--text);
    }
    .related-card-link:hover {
        color: var(--text);
    }
    .related-card-img {
        width: 100%;
        aspect-ratio: 16/9;
        object-fit: cover;
        border-bottom: 1px solid var(--border);
    }
    .related-card-body {
        padding: var(--spacing-sm);
    }
    .related-card-cat {
        display: inline-block;
        background: var(--brand-gradient-soft);
        color: var(--brand-2);
        font-size: 13px;
        font-weight: 600;
        padding: 4px 10px;
        border-radius: var(--radius-pill);
        margin-bottom: 8px;
    }
    .related-card-body h3 {
        font-size: 18px;
        font-weight: 700;
        margin: 0 0 6px;
        color: var(--text);
        line-height: 1.4;
    }
    .related-card-body p {
        font-size: 14px;
        color: var(--text-weak);
        margin: 0 0 8px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .related-card-time {
        font-size: 13px;
        color: var(--text-muted);
    }
    .toolbar-card {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: var(--spacing-md);
        max-width: 800px;
        margin: 0 auto var(--spacing-md);
        display: flex;
        flex-wrap: wrap;
        gap: var(--spacing-sm);
        align-items: center;
    }
    .btn {
        border-radius: var(--radius-pill);
        padding: 10px 22px;
        font-weight: 600;
        font-size: 15px;
        transition: var(--transition);
        display: inline-flex;
        align-items: center;
        gap: 8px;
    }
    .btn-brand {
        background: var(--brand-gradient);
        color: #fff;
        border: none;
        box-shadow: var(--shadow-btn);
    }
    .btn-brand:hover, .btn-brand:focus {
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 10px 28px rgba(255,61,74,0.5);
    }
    .btn-outline-brand {
        background: transparent;
        color: var(--text);
        border: 1px solid var(--border-light);
    }
    .btn-outline-brand:hover, .btn-outline-brand:focus {
        background: rgba(247,245,240,0.06);
        color: var(--text);
        border-color: var(--brand-2);
    }
    .btn-ghost {
        background: transparent;
        color: var(--text-muted);
        border: 1px solid var(--border);
    }
    .btn-ghost:hover {
        background: rgba(247,245,240,0.06);
        color: var(--text);
    }
    .toolbar-tip {
        color: var(--text-muted);
        font-size: 14px;
        margin-left: auto;
    }
    .follow-card {
        background: var(--brand-gradient);
        border-radius: var(--radius-lg);
        padding: var(--spacing-lg);
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }
    .follow-card h2 {
        font-size: 26px;
        font-weight: 700;
        color: #fff;
        margin: 0 0 6px;
    }
    .follow-card p {
        color: rgba(255,255,255,0.9);
        margin: 0;
        font-size: 16px;
    }
    .follow-card .btn {
        background: #fff;
        color: var(--brand-1);
        border: none;
    }
    .follow-card .btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 10px 28px rgba(0,0,0,0.25);
    }
    .article-cta {
        text-align: center;
        padding: var(--spacing-lg) 0 var(--spacing-sm);
    }
    .article-cta h2 {
        font-size: 28px;
        font-weight: 700;
        margin-bottom: var(--spacing-sm);
        color: var(--text);
    }
    .article-cta .btn {
        margin: 0 6px;
    }
    .empty-state {
        text-align: center;
        padding: var(--spacing-xl) 0;
        color: var(--text-muted);
    }
    .empty-state a {
        color: var(--brand-2);
    }
    .site-footer {
        background: #0F0D14;
        border-top: 1px solid var(--border);
        padding: var(--spacing-lg) 0 var(--spacing-sm);
        margin-top: var(--spacing-lg);
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr 1fr;
        gap: var(--spacing-lg);
        margin-bottom: var(--spacing-lg);
    }
    .footer-brand {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 20px;
        font-weight: 700;
        margin-bottom: var(--spacing-sm);
        color: var(--text);
    }
    .footer-desc {
        color: var(--text-weak);
        font-size: 14px;
        line-height: 1.7;
        margin: 0;
    }
    .footer-col h4 {
        color: var(--text);
        font-size: 16px;
        font-weight: 600;
        margin-bottom: var(--spacing-sm);
    }
    .footer-col ul {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    .footer-col li {
        margin-bottom: 8px;
    }
    .footer-col a {
        color: var(--text-weak);
        font-size: 14px;
    }
    .footer-col a:hover {
        color: var(--text);
    }
    .footer-bottom {
        border-top: 1px solid var(--border);
        padding-top: var(--spacing-md);
        text-align: center;
        color: var(--text-muted);
        font-size: 13px;
        display: flex;
        flex-direction: column;
        gap: 6px;
    }
    @media (max-width: 991px) {
        .nav-links {
            position: absolute;
            top: 68px;
            left: 0;
            right: 0;
            background: var(--bg);
            flex-direction: column;
            gap: 0;
            border-bottom: 1px solid var(--border);
            padding: var(--spacing-sm);
            display: none;
        }
        .nav-links.show {
            display: flex;
        }
        .navbar-toggler-custom {
            display: inline-flex;
        }
        .nav-links .nav-link-custom {
            width: 100%;
            padding: 12px 14px;
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-md);
        }
    }
    @media (max-width: 767px) {
        .article-head-card h1 {
            font-size: 28px;
        }
        .article-content {
            padding: var(--spacing-md);
            font-size: 16px;
        }
        .related-grid {
            grid-template-columns: 1fr;
        }
        .toolbar-card {
            flex-direction: column;
            align-items: stretch;
            text-align: center;
        }
        .toolbar-tip {
            margin-left: 0;
        }
        .follow-card {
            flex-direction: column;
            text-align: center;
        }
    }
    @media (max-width: 575px) {
        .container {
            padding-left: var(--spacing-sm);
            padding-right: var(--spacing-sm);
        }
        .top-bar .container {
            flex-direction: column;
            gap: 6px;
            align-items: flex-start;
        }
        .article-head-card {
            padding: var(--spacing-md);
        }
        .article-head-card h1 {
            font-size: 26px;
        }
        .footer-grid {
            grid-template-columns: 1fr;
        }
        .article-cta .btn {
            margin: 6px 0;
            display: block;
            width: 100%;
        }
    }

/* roulang page: category1 */
:root {
            --bg: #15131A;
            --bg-alt: #1E1B26;
            --bg-card: #201D2A;
            --bg-card-hover: #282436;
            --brand-1: #FF3D4A;
            --brand-2: #FF8A3D;
            --brand-gradient: linear-gradient(135deg, #FF3D4A 0%, #FF8A3D 100%);
            --brand-gradient-soft: linear-gradient(135deg, rgba(255,61,74,0.15) 0%, rgba(255,138,61,0.15) 100%);
            --military: #3E5C50;
            --navy-slate: #353B4D;
            --text: #F7F5F0;
            --text-weak: #A8A4B3;
            --text-muted: #7C7888;
            --border: rgba(247,245,240,0.08);
            --border-light: rgba(247,245,240,0.14);
            --radius-lg: 24px;
            --radius-md: 18px;
            --radius-sm: 14px;
            --radius-pill: 999px;
            --shadow-card: 0 12px 32px rgba(0,0,0,0.25);
            --shadow-card-hover: 0 20px 44px rgba(0,0,0,0.4);
            --shadow-btn: 0 6px 20px rgba(255,61,74,0.3);
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 48px;
            --spacing-xl: 72px;
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-stack);
            background: var(--bg);
            color: var(--text);
            line-height: 1.65;
            margin: 0;
            padding: 0;
            font-size: 16px;
            overflow-x: hidden;
        }
        a {
            color: var(--brand-1);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--brand-2);
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--brand-2);
            outline-offset: 4px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        .btn {
            font-family: var(--font-stack);
        }
        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .container {
            max-width: 1200px;
            padding-left: var(--spacing-sm);
            padding-right: var(--spacing-sm);
        }
        @media (min-width: 576px) {
            .container {
                padding-left: var(--spacing-md);
                padding-right: var(--spacing-md);
            }
        }
        @media (min-width: 992px) {
            .container {
                padding-left: var(--spacing-md);
                padding-right: var(--spacing-md);
            }
        }
        @media (min-width: 1200px) {
            .container {
                padding-left: var(--spacing-lg);
                padding-right: var(--spacing-lg);
            }
        }

        /* ========== 顶部信息条 ========== */
        .top-bar {
            background: #0E0C13;
            border-bottom: 1px solid rgba(247,245,240,0.05);
            font-size: 13px;
            color: var(--text-muted);
            height: 38px;
            display: flex;
            align-items: center;
        }
        .top-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }
        .top-bar-left {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            white-space: nowrap;
        }
        .top-bar-left i {
            color: var(--brand-2);
            font-size: 12px;
        }
        .top-bar-right {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .top-bar-right a {
            color: var(--text-weak);
            font-size: 13px;
            transition: var(--transition);
            padding: 4px 10px;
            border-radius: 6px;
            white-space: nowrap;
        }
        .top-bar-right a:hover {
            color: var(--text);
            background: rgba(247,245,240,0.06);
        }
        .top-bar-right .top-divider {
            color: rgba(247,245,240,0.15);
            padding: 0 2px;
        }

        /* ========== 主导航 ========== */
        .main-header {
            background: rgba(21,19,26,0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1040;
            transition: var(--transition);
        }
        .main-header.scrolled {
            box-shadow: 0 8px 32px rgba(0,0,0,0.5);
        }
        .navbar-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: var(--spacing-sm);
            position: relative;
        }
        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 19px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.3px;
            white-space: nowrap;
            transition: var(--transition);
            line-height: 1.3;
        }
        .navbar-brand-custom:hover {
            color: var(--text);
            opacity: 0.88;
        }
        .navbar-brand-custom .brand-text {
            max-width: 260px;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .brand-icon {
            width: 36px;
            height: 36px;
            background: var(--brand-gradient);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            color: #fff;
            flex-shrink: 0;
            box-shadow: var(--shadow-btn);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .nav-links .nav-link-custom {
            color: var(--text-weak);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: 10px;
            transition: var(--transition);
            position: relative;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .nav-links .nav-link-custom:hover,
        .nav-links .nav-link-custom:focus {
            color: var(--text);
            background: rgba(247,245,240,0.06);
        }
        .nav-links .nav-link-custom.active {
            color: #fff;
            background: rgba(255,61,74,0.12);
        }
        .nav-links .nav-link-custom.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background: var(--brand-gradient);
            border-radius: 2px;
        }
        .nav-cta {
            background: var(--brand-gradient);
            color: #fff !important;
            padding: 9px 20px !important;
            border-radius: var(--radius-pill) !important;
            font-weight: 600;
            box-shadow: var(--shadow-btn);
        }
        .nav-cta:hover {
            opacity: 0.9;
            transform: translateY(-1px);
            color: #fff !important;
        }
        .navbar-toggler-custom {
            display: none;
            background: rgba(247,245,240,0.06);
            border: 1px solid var(--border);
            color: var(--text);
            width: 42px;
            height: 42px;
            border-radius: 12px;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            cursor: pointer;
            transition: var(--transition);
        }
        .navbar-toggler-custom:hover {
            background: rgba(255,61,74,0.15);
            color: #fff;
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-section {
            padding: var(--spacing-md) 0 0;
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb-custom a {
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb-custom a:hover {
            color: var(--text);
        }
        .breadcrumb-custom .breadcrumb-sep {
            color: rgba(247,245,240,0.2);
        }
        .breadcrumb-custom .breadcrumb-current {
            color: var(--brand-2);
            font-weight: 500;
        }

        /* ========== 分类头区 ========== */
        .category-head {
            padding: var(--spacing-lg) 0 var(--spacing-md);
            position: relative;
        }
        .category-head::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 40%;
            height: 100%;
            background: var(--brand-gradient-soft);
            border-radius: var(--radius-lg) 0 0 var(--radius-lg);
            z-index: 0;
        }
        .category-head .container {
            position: relative;
            z-index: 1;
        }
        .category-head-wrap {
            display: flex;
            align-items: flex-end;
            gap: var(--spacing-lg);
            flex-wrap: wrap;
        }
        .category-head-text {
            flex: 1 1 500px;
        }
        .category-head-text h1 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            margin: 0 0 var(--spacing-sm);
            color: var(--text);
            letter-spacing: 0.5px;
        }
        .category-head-text h1 .highlight {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .category-head-text p {
            font-size: 16px;
            color: var(--text-weak);
            margin: 0 0 var(--spacing-md);
            max-width: 680px;
            line-height: 1.75;
        }
        .category-stats-row {
            display: flex;
            gap: var(--spacing-md);
            flex-wrap: wrap;
            margin-top: var(--spacing-sm);
        }
        .stat-badge {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 14px 20px;
            display: flex;
            flex-direction: column;
            gap: 2px;
            min-width: 110px;
        }
        .stat-badge .stat-number {
            font-size: 26px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.2;
            letter-spacing: 0.5px;
        }
        .stat-badge .stat-number span {
            font-size: 14px;
            font-weight: 500;
            color: var(--brand-2);
            margin-left: 2px;
        }
        .stat-badge .stat-label {
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.3px;
        }
        .category-head-visual {
            flex: 0 0 280px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            position: relative;
            min-height: 180px;
            background: var(--bg-card);
        }
        .category-head-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 180px;
        }
        .category-head-visual .visual-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 30%, rgba(21,19,26,0.75) 100%);
            display: flex;
            align-items: flex-end;
            padding: var(--spacing-sm);
        }
        .visual-overlay .overlay-tag {
            background: rgba(21,19,26,0.85);
            backdrop-filter: blur(12px);
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            color: var(--brand-2);
            display: flex;
            align-items: center;
            gap: 6px;
            border: 1px solid rgba(255,138,61,0.25);
        }

        /* ========== 通用板块 ========== */
        .section-block {
            padding: var(--spacing-lg) 0;
            position: relative;
        }
        .section-block.alt-bg {
            background: var(--bg-alt);
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
            color: var(--brand-2);
            margin-bottom: var(--spacing-xs);
        }
        .section-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--brand-gradient);
            border-radius: 2px;
        }
        .section-title {
            font-size: 26px;
            font-weight: 800;
            color: var(--text);
            margin: 0 0 var(--spacing-sm);
            line-height: 1.35;
            letter-spacing: 0.4px;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-weak);
            margin: 0 0 var(--spacing-lg);
            max-width: 720px;
            line-height: 1.75;
        }

        /* ========== 筛选工具条 ========== */
        .filter-toolbar {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: var(--spacing-sm) var(--spacing-md);
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
            margin-bottom: var(--spacing-lg);
            box-shadow: var(--shadow-card);
        }
        .filter-toolbar .filter-label {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
            font-weight: 500;
        }
        .filter-toolbar .form-select,
        .filter-toolbar .form-control {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            color: var(--text);
            border-radius: var(--radius-sm);
            font-size: 14px;
            padding: 8px 14px;
            min-width: 130px;
            flex: 0 0 auto;
        }
        .filter-toolbar .form-select:focus,
        .filter-toolbar .form-control:focus {
            border-color: var(--brand-2);
            box-shadow: 0 0 0 3px rgba(255,138,61,0.15);
            outline: none;
        }
        .filter-toolbar .form-select option {
            background: var(--bg-card);
            color: var(--text);
        }
        .filter-toolbar .filter-btn {
            background: var(--brand-gradient);
            border: none;
            color: #fff;
            border-radius: var(--radius-sm);
            padding: 8px 20px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
            box-shadow: var(--shadow-btn);
        }
        .filter-toolbar .filter-btn:hover {
            opacity: 0.9;
            transform: translateY(-1px);
        }
        .filter-toolbar .active-filters {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ========== 列表卡片 ========== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }
        .video-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .video-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(255,138,61,0.2);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .video-card .card-thumb {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--bg-alt);
        }
        .video-card .card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .video-card:hover .card-thumb img {
            transform: scale(1.05);
        }
        .video-card .thumb-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(21,19,26,0.2) 0%, transparent 50%, rgba(21,19,26,0.6) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: var(--transition);
        }
        .video-card:hover .thumb-overlay {
            opacity: 1;
        }
        .video-card .play-circle {
            width: 52px;
            height: 52px;
            background: rgba(247,245,240,0.2);
            backdrop-filter: blur(12px);
            border: 2px solid rgba(247,245,240,0.5);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            transition: var(--transition);
        }
        .video-card .play-circle:hover {
            background: var(--brand-gradient);
            border-color: transparent;
            transform: scale(1.05);
        }
        .video-card .card-tag {
            position: absolute;
            top: 10px;
            left: 10px;
            background: rgba(21,19,26,0.85);
            backdrop-filter: blur(12px);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            color: var(--brand-2);
            font-weight: 500;
            border: 1px solid rgba(255,138,61,0.2);
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .video-card .card-time {
            position: absolute;
            bottom: 10px;
            right: 10px;
            background: rgba(21,19,26,0.8);
            backdrop-filter: blur(8px);
            padding: 3px 10px;
            border-radius: 6px;
            font-size: 12px;
            color: var(--text-weak);
            letter-spacing: 0.5px;
        }
        .video-card .card-body {
            padding: var(--spacing-sm);
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-xs);
        }
        .video-card .card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin: 0;
            line-height: 1.45;
            letter-spacing: 0.3px;
        }
        .video-card .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-muted);
        }
        .video-card .card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .video-card .card-excerpt {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.6;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .video-card .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
            padding-top: var(--spacing-xs);
            border-top: 1px solid rgba(247,245,240,0.05);
        }
        .video-card .card-btn {
            font-size: 13px;
            color: var(--brand-2);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition);
        }
        .video-card .card-btn:hover {
            color: #fff;
            gap: 8px;
        }
        .video-card .card-progress {
            height: 3px;
            background: rgba(247,245,240,0.08);
            border-radius: 2px;
            overflow: hidden;
            flex: 1;
            max-width: 70px;
        }
        .video-card .card-progress-bar {
            height: 100%;
            background: var(--brand-gradient);
            border-radius: 2px;
        }

        /* ========== 数据徽章墙 ========== */
        .badge-wall {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }
        .badge-wall-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            text-align: center;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
        }
        .badge-wall-item:hover {
            background: var(--bg-card-hover);
            border-color: rgba(255,61,74,0.2);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card);
        }
        .badge-wall-item .badge-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--brand-gradient-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--brand-2);
            margin-bottom: 4px;
        }
        .badge-wall-item .badge-number-large {
            font-size: 30px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.2;
            letter-spacing: 0.5px;
        }
        .badge-wall-item .badge-label {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ========== 热门推荐横向卡 ========== */
        .hot-picks-row {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .hot-pick-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: var(--spacing-sm);
            display: flex;
            gap: var(--spacing-sm);
            align-items: center;
            transition: var(--transition);
            flex-wrap: wrap;
        }
        .hot-pick-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(255,138,61,0.2);
            box-shadow: var(--shadow-card);
            transform: translateX(4px);
        }
        .hot-pick-card .pick-thumb {
            flex: 0 0 160px;
            aspect-ratio: 16/9;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--bg-alt);
            position: relative;
        }
        .hot-pick-card .pick-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .hot-pick-card .pick-thumb .pick-rank {
            position: absolute;
            top: 8px;
            left: 8px;
            background: var(--brand-gradient);
            color: #fff;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-btn);
        }
        .hot-pick-card .pick-info {
            flex: 1;
            min-width: 200px;
        }
        .hot-pick-card .pick-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 6px;
            line-height: 1.4;
        }
        .hot-pick-card .pick-desc {
            font-size: 13px;
            color: var(--text-weak);
            margin: 0 0 8px;
            line-height: 1.6;
        }
        .hot-pick-card .pick-meta {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-muted);
        }
        .hot-pick-card .pick-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .hot-pick-card .pick-action {
            flex: 0 0 auto;
            align-self: center;
        }
        .hot-pick-card .pick-btn {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            color: var(--text);
            border-radius: var(--radius-pill);
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 600;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
            cursor: pointer;
        }
        .hot-pick-card .pick-btn:hover {
            background: var(--brand-gradient);
            border-color: transparent;
            color: #fff;
            box-shadow: var(--shadow-btn);
            transform: translateY(-1px);
        }

        /* ========== FAQ 手风琴 ========== */
        .faq-accordion .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md) !important;
            overflow: hidden;
            margin-bottom: var(--spacing-sm);
            transition: var(--transition);
        }
        .faq-accordion .accordion-item:hover {
            border-color: rgba(255,138,61,0.2);
        }
        .faq-accordion .accordion-header .accordion-button {
            background: transparent;
            color: var(--text);
            font-size: 15px;
            font-weight: 600;
            padding: var(--spacing-sm) var(--spacing-md);
            border: none;
            box-shadow: none;
            letter-spacing: 0.3px;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-sm);
            width: 100%;
            text-align: left;
        }
        .faq-accordion .accordion-button:focus {
            outline: 2px solid var(--brand-2);
            outline-offset: -2px;
            box-shadow: none;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--brand-2);
            background: rgba(255,61,74,0.06);
        }
        .faq-accordion .accordion-button::after {
            display: none;
        }
        .faq-accordion .accordion-button .faq-icon {
            flex-shrink: 0;
            transition: transform 0.3s ease;
            color: var(--brand-2);
            font-size: 14px;
        }
        .faq-accordion .accordion-button:not(.collapsed) .faq-icon {
            transform: rotate(180deg);
        }
        .faq-accordion .accordion-body {
            padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.75;
            border-top: 1px solid rgba(247,245,240,0.05);
        }
        .faq-accordion .accordion-body p {
            margin: 0 0 var(--spacing-xs);
        }
        .faq-accordion .accordion-body p:last-child {
            margin-bottom: 0;
        }
        .faq-accordion .accordion-body ul {
            padding-left: 18px;
            list-style: disc;
            margin: var(--spacing-xs) 0;
        }
        .faq-accordion .accordion-body li {
            margin-bottom: 4px;
        }

        /* ========== 资讯列表 ========== */
        .news-list-section .news-list-wrap {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: var(--spacing-sm);
            display: flex;
            gap: var(--spacing-sm);
            align-items: center;
            transition: var(--transition);
            color: var(--text);
            flex-wrap: wrap;
        }
        .news-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(255,61,74,0.2);
            box-shadow: var(--shadow-card);
            color: var(--text);
            transform: translateY(-2px);
        }
        .news-card .news-thumb {
            flex: 0 0 120px;
            aspect-ratio: 16/9;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--bg-alt);
            position: relative;
        }
        .news-card .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-card .news-body {
            flex: 1;
            min-width: 220px;
        }
        .news-card .news-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 6px;
            line-height: 1.45;
        }
        .news-card .news-summary {
            font-size: 13px;
            color: var(--text-weak);
            margin: 0 0 6px;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .news-meta {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-muted);
        }
        .news-card .news-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .news-card .news-meta .meta-tag {
            background: var(--brand-gradient-soft);
            padding: 2px 10px;
            border-radius: var(--radius-pill);
            color: var(--brand-2);
            font-weight: 500;
            font-size: 11px;
            letter-spacing: 0.3px;
        }
        .news-empty {
            background: var(--bg-card);
            border: 1px dashed var(--border-light);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            text-align: center;
            color: var(--text-muted);
            font-size: 15px;
        }

        /* ========== 频道矩阵 ========== */
        .channel-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }
        .channel-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            text-align: center;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: var(--spacing-xs);
            color: var(--text);
        }
        .channel-item:hover {
            background: var(--bg-card-hover);
            border-color: rgba(255,138,61,0.25);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            color: var(--text);
        }
        .channel-item .channel-icon {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: var(--brand-gradient-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--brand-2);
            margin-bottom: 4px;
            transition: var(--transition);
        }
        .channel-item:hover .channel-icon {
            background: var(--brand-gradient);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }
        .channel-item .channel-name {
            font-size: 15px;
            font-weight: 700;
            margin: 0;
        }
        .channel-item .channel-count {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ========== CTA ========== */
        .cta-section .cta-card {
            background: var(--brand-gradient);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl) var(--spacing-lg);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-lg);
            flex-wrap: wrap;
            box-shadow: 0 24px 56px rgba(255,61,74,0.25);
            position: relative;
            overflow: hidden;
        }
        .cta-section .cta-card::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(247,245,240,0.08);
            pointer-events: none;
        }
        .cta-section .cta-card::before {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -5%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(21,19,26,0.12);
            pointer-events: none;
        }
        .cta-section .cta-text {
            flex: 1 1 300px;
            position: relative;
            z-index: 1;
        }
        .cta-section .cta-title {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            margin: 0 0 var(--spacing-xs);
            line-height: 1.35;
            letter-spacing: 0.5px;
        }
        .cta-section .cta-desc {
            font-size: 15px;
            color: rgba(255,255,255,0.9);
            margin: 0;
            line-height: 1.7;
        }
        .cta-section .cta-actions {
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .cta-section .cta-btn-white {
            background: #fff;
            color: #B71C1C;
            border: none;
            border-radius: var(--radius-pill);
            padding: 14px 32px;
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 8px 24px rgba(0,0,0,0.2);
        }
        .cta-section .cta-btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(0,0,0,0.3);
        }
        .cta-section .cta-btn-ghost {
            background: transparent;
            border: 2px solid rgba(255,255,255,0.6);
            color: #fff;
            border-radius: var(--radius-pill);
            padding: 14px 28px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .cta-section .cta-btn-ghost:hover {
            background: rgba(255,255,255,0.12);
            border-color: #fff;
            transform: translateY(-2px);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0E0C13;
            border-top: 1px solid var(--border);
            padding: var(--spacing-lg) 0 var(--spacing-sm);
            margin-top: var(--spacing-lg);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-lg);
            padding-bottom: var(--spacing-lg);
            border-bottom: 1px solid rgba(247,245,240,0.06);
        }
        .footer-brand-col .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: var(--spacing-sm);
        }
        .footer-brand-col .footer-brand .brand-icon {
            width: 32px;
            height: 32px;
            font-size: 14px;
            border-radius: 8px;
        }
        .footer-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 var(--spacing-sm);
            letter-spacing: 0.3px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            color: var(--text-weak);
            font-size: 13px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--brand-2);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-xs);
            justify-content: space-between;
            align-items: center;
            padding-top: var(--spacing-sm);
        }
        .footer-bottom p {
            font-size: 12px;
            color: var(--text-muted);
            margin: 0;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1199px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .badge-wall {
                grid-template-columns: repeat(2, 1fr);
            }
            .channel-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-lg) var(--spacing-md);
            }
            .category-head-wrap {
                flex-direction: column;
                align-items: stretch;
            }
            .category-head-visual {
                flex: 0 0 auto;
            }
        }
        @media (max-width: 991px) {
            .navbar-brand-custom {
                font-size: 17px;
            }
            .navbar-brand-custom .brand-text {
                max-width: 180px;
            }
            .nav-links .nav-link-custom {
                font-size: 14px;
                padding: 8px 10px;
            }
            .nav-cta {
                padding: 8px 16px !important;
                font-size: 14px !important;
            }
            .section-title {
                font-size: 24px;
            }
            .category-head-text h1 {
                font-size: 28px;
            }
            .hot-pick-card .pick-thumb {
                flex: 0 0 140px;
            }
            .cta-section .cta-card {
                padding: var(--spacing-lg);
            }
            .cta-section .cta-title {
                font-size: 24px;
            }
        }
        @media (max-width: 767px) {
            .top-bar {
                height: auto;
                min-height: 36px;
                padding: 4px 0;
            }
            .top-bar .container {
                justify-content: center;
                gap: 4px;
            }
            .top-bar-right a {
                padding: 4px 6px;
                font-size: 12px;
            }
            .navbar-content {
                height: 60px;
            }
            .navbar-toggler-custom {
                display: flex;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: rgba(21,19,26,0.97);
                backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--border);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                padding: var(--spacing-sm);
                flex-direction: column;
                gap: 4px;
                box-shadow: 0 16px 40px rgba(0,0,0,0.5);
                z-index: 1030;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links .nav-link-custom {
                width: 100%;
                text-align: center;
                padding: 12px 16px;
                font-size: 15px;
                border-radius: 10px;
            }
            .nav-links .nav-link-custom.active::after {
                display: none;
            }
            .nav-cta {
                width: 100%;
                text-align: center;
                margin-top: 4px;
            }
            .category-head {
                padding: var(--spacing-md) 0;
            }
            .category-head-text h1 {
                font-size: 24px;
            }
            .category-head-text p {
                font-size: 14px;
            }
            .category-stats-row {
                gap: var(--spacing-xs);
            }
            .stat-badge {
                padding: 10px 14px;
                min-width: 90px;
            }
            .stat-badge .stat-number {
                font-size: 20px;
            }
            .category-head-visual {
                min-height: 160px;
            }
            .category-head-visual img {
                min-height: 160px;
            }
            .filter-toolbar {
                flex-direction: column;
                align-items: stretch;
                gap: var(--spacing-xs);
                padding: var(--spacing-sm);
            }
            .filter-toolbar .form-select,
            .filter-toolbar .form-control {
                width: 100%;
                min-width: auto;
                flex: 1;
            }
            .filter-toolbar .filter-btn {
                justify-content: center;
            }
            .category-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
            }
            .badge-wall {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-xs);
            }
            .badge-wall-item {
                padding: var(--spacing-sm);
            }
            .badge-wall-item .badge-number-large {
                font-size: 24px;
            }
            .hot-pick-card {
                flex-direction: column;
                align-items: stretch;
            }
            .hot-pick-card .pick-thumb {
                flex: 0 0 auto;
                width: 100%;
            }
            .hot-pick-card .pick-action {
                align-self: stretch;
            }
            .hot-pick-card .pick-btn {
                width: 100%;
                justify-content: center;
            }
            .channel-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-xs);
            }
            .channel-item {
                padding: var(--spacing-sm);
            }
            .channel-item .channel-icon {
                width: 44px;
                height: 44px;
                font-size: 18px;
            }
            .news-card {
                flex-direction: column;
                align-items: stretch;
            }
            .news-card .news-thumb {
                flex: 0 0 auto;
                width: 100%;
            }
            .cta-section .cta-card {
                padding: var(--spacing-md);
                flex-direction: column;
                align-items: stretch;
                text-align: center;
            }
            .cta-section .cta-title {
                font-size: 22px;
            }
            .cta-section .cta-desc {
                font-size: 14px;
            }
            .cta-section .cta-actions {
                justify-content: center;
            }
            .cta-section .cta-btn-white,
            .cta-section .cta-btn-ghost {
                width: 100%;
                justify-content: center;
                padding: 12px 20px;
                font-size: 15px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .section-title {
                font-size: 22px;
            }
            .section-desc {
                font-size: 14px;
            }
        }
        @media (max-width: 575px) {
            .navbar-brand-custom {
                font-size: 15px;
                gap: 8px;
            }
            .navbar-brand-custom .brand-text {
                max-width: 130px;
            }
            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 13px;
                border-radius: 8px;
            }
            .category-head-text h1 {
                font-size: 21px;
                line-height: 1.4;
            }
            .stat-badge {
                min-width: 70px;
                padding: 8px 10px;
                border-radius: var(--radius-sm);
            }
            .stat-badge .stat-number {
                font-size: 18px;
            }
            .stat-badge .stat-label {
                font-size: 11px;
            }
            .badge-wall {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .badge-wall-item .badge-icon {
                width: 40px;
                height: 40px;
                font-size: 17px;
                border-radius: 12px;
            }
            .badge-wall-item .badge-number-large {
                font-size: 22px;
            }
            .video-card .card-title {
                font-size: 14px;
            }
            .hot-pick-card .pick-title {
                font-size: 14px;
            }
            .channel-grid {
                grid-template-columns: 1fr 1fr;
                gap: 6px;
            }
            .channel-item .channel-name {
                font-size: 13px;
            }
            .faq-accordion .accordion-header .accordion-button {
                font-size: 14px;
                padding: var(--spacing-sm);
            }
            .faq-accordion .accordion-body {
                font-size: 13px;
                padding: var(--spacing-sm);
            }
        }

/* 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}