/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f0f1a;
            --primary-light: #1a1a2e;
            --primary-hover: #252540;
            --secondary: #c9a84c;
            --secondary-light: #e0c06a;
            --secondary-dark: #a8882e;
            --accent: #e8505b;
            --accent-light: #f06a74;
            --dark: #0a0a0f;
            --darker: #050508;
            --light: #f8f5f0;
            --light-alt: #f0ebe4;
            --text: #e8e0d8;
            --text-light: #f5f0eb;
            --text-muted: #8a7e74;
            --text-muted-dark: #6a5e54;
            --border: #2a2a3a;
            --border-light: #3a3a4e;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 40px rgba(201, 168, 76, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --nav-height: 72px;
            --max-width: 1200px;
            --section-spacing: 100px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--dark);
            overflow-x: hidden;
        }
        a {
            color: var(--secondary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-light);
            text-decoration: none;
        }
        a:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 4px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-light);
            margin-top: 0;
            margin-bottom: 0.5em;
        }
        p {
            margin-top: 0;
            margin-bottom: 1em;
            color: var(--text-muted);
        }
        ul,
        ol {
            padding-left: 1.5em;
        }
        .container {
            max-width: var(--max-width);
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }
        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== 导航 Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1080;
            height: var(--nav-height);
            background: rgba(10, 10, 15, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(42, 42, 58, 0.5);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(5, 5, 8, 0.95);
            border-bottom-color: var(--border);
            box-shadow: var(--shadow-md);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: -0.5px;
            transition: var(--transition);
        }
        .site-logo:hover {
            color: var(--secondary);
        }
        .site-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--dark);
            font-weight: 900;
            flex-shrink: 0;
        }
        .site-logo .logo-text {
            background: linear-gradient(135deg, var(--text-light), var(--secondary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .main-nav .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .main-nav .nav-link:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.05);
        }
        .main-nav .nav-link.active {
            color: var(--secondary);
            background: rgba(201, 168, 76, 0.1);
        }
        .main-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--secondary);
            border-radius: 2px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 6px 14px;
            transition: var(--transition);
        }
        .nav-search:focus-within {
            border-color: var(--secondary);
            background: rgba(255, 255, 255, 0.08);
            box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.1);
        }
        .nav-search input {
            background: none;
            border: none;
            outline: none;
            color: var(--text);
            font-size: 0.85rem;
            width: 140px;
            padding: 2px 0;
        }
        .nav-search input::placeholder {
            color: var(--text-muted-dark);
        }
        .nav-search button {
            background: none;
            border: none;
            color: var(--text-muted);
            padding: 0 0 0 8px;
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-search button:hover {
            color: var(--secondary);
        }
        .nav-toggler {
            display: none;
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 1.5rem;
            padding: 6px 10px;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .nav-toggler:hover {
            background: rgba(255, 255, 255, 0.05);
        }
        .nav-hot {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-left: 8px;
            padding-left: 12px;
            border-left: 1px solid var(--border);
        }
        .nav-hot .hot-label {
            font-size: 0.75rem;
            color: var(--accent);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .nav-hot .hot-link {
            font-size: 0.78rem;
            color: var(--text-muted);
            padding: 2px 10px;
            border-radius: 20px;
            background: rgba(232, 80, 91, 0.08);
            border: 1px solid rgba(232, 80, 91, 0.15);
            transition: var(--transition);
        }
        .nav-hot .hot-link:hover {
            color: var(--accent-light);
            background: rgba(232, 80, 91, 0.15);
        }

        /* ===== 移动端导航 ===== */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.7);
            z-index: 1070;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .mobile-nav-overlay.show {
            opacity: 1;
        }
        .mobile-nav-panel {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100%;
            background: var(--primary);
            border-left: 1px solid var(--border);
            z-index: 1090;
            transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            padding: 24px 20px;
            overflow-y: auto;
            box-shadow: -8px 0 40px rgba(0, 0, 0, 0.5);
        }
        .mobile-nav-panel.open {
            right: 0;
        }
        .mobile-nav-panel .close-btn {
            background: none;
            border: none;
            color: var(--text-muted);
            font-size: 1.5rem;
            float: right;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .mobile-nav-panel .close-btn:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.05);
        }
        .mobile-nav-list {
            list-style: none;
            padding: 0;
            margin: 40px 0 0 0;
        }
        .mobile-nav-list li {
            margin-bottom: 4px;
        }
        .mobile-nav-list a {
            display: block;
            padding: 14px 16px;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .mobile-nav-list a:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.05);
        }
        .mobile-nav-list a.active {
            color: var(--secondary);
            background: rgba(201, 168, 76, 0.1);
        }
        .mobile-nav-list .mobile-hot {
            margin-top: 20px;
            padding: 16px;
            background: rgba(232, 80, 91, 0.05);
            border-radius: var(--radius-md);
            border: 1px solid rgba(232, 80, 91, 0.1);
        }
        .mobile-nav-list .mobile-hot span {
            font-size: 0.75rem;
            color: var(--accent);
            font-weight: 600;
            text-transform: uppercase;
        }
        .mobile-nav-list .mobile-hot a {
            display: inline-block;
            padding: 4px 14px;
            font-size: 0.85rem;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.04);
            border-radius: 20px;
            margin: 6px 6px 0 0;
        }

        /* ===== Hero 首屏 ===== */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding-top: var(--nav-height);
            overflow: hidden;
            background: var(--darker);
        }
        .hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center center;
            background-repeat: no-repeat;
            filter: brightness(0.4) saturate(1.1);
            transform: scale(1.02);
            transition: transform 8s ease;
        }
        .hero-section:hover .hero-bg {
            transform: scale(1.05);
        }
        .hero-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(10, 10, 15, 0.3) 0%, rgba(10, 10, 15, 0.7) 50%, var(--dark) 100%);
        }
        .hero-particles {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: radial-gradient(circle at 25% 50%, rgba(201, 168, 76, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 75% 30%, rgba(232, 80, 91, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 50% 70%, rgba(201, 168, 76, 0.04) 0%, transparent 50%);
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
            padding: 40px 24px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 20px;
            background: rgba(201, 168, 76, 0.12);
            border: 1px solid rgba(201, 168, 76, 0.2);
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--secondary-light);
            margin-bottom: 28px;
            letter-spacing: 0.5px;
            backdrop-filter: blur(10px);
        }
        .hero-badge i {
            font-size: 0.7rem;
        }
        .hero-title {
            font-size: clamp(2.6rem, 7vw, 5rem);
            font-weight: 900;
            line-height: 1.1;
            letter-spacing: -1.5px;
            margin-bottom: 20px;
            background: linear-gradient(135deg, var(--text-light) 0%, var(--secondary-light) 50%, var(--text-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-subtitle {
            font-size: clamp(1.05rem, 2vw, 1.35rem);
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 36px auto;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
            align-items: center;
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            color: var(--dark);
            font-weight: 700;
            font-size: 1rem;
            border: none;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(201, 168, 76, 0.3);
        }
        .btn-primary-custom:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(201, 168, 76, 0.4);
            color: var(--dark);
        }
        .btn-primary-custom:active {
            transform: translateY(0);
        }
        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            background: transparent;
            color: var(--text-light);
            font-weight: 600;
            font-size: 1rem;
            border: 1.5px solid var(--border-light);
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
        }
        .btn-outline-custom:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            background: rgba(201, 168, 76, 0.06);
            transform: translateY(-2px);
        }
        .hero-scroll {
            position: absolute;
            bottom: 32px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            color: var(--text-muted-dark);
            font-size: 0.75rem;
            letter-spacing: 1px;
            text-transform: uppercase;
            animation: bounceDown 2s infinite;
        }
        .hero-scroll i {
            font-size: 1.1rem;
        }
        @keyframes bounceDown {
            0%,
            100% {
                transform: translateX(-50%) translateY(0);
            }
            50% {
                transform: translateX(-50%) translateY(8px);
            }
        }

        /* ===== 通用板块样式 ===== */
        .section {
            padding: var(--section-spacing) 0;
            position: relative;
        }
        .section-alt {
            background: var(--primary);
        }
        .section-dark {
            background: var(--darker);
        }
        .section-divider {
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border), transparent);
            margin: 0;
            border: none;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--secondary);
            margin-bottom: 14px;
        }
        .section-label::before {
            content: '';
            width: 24px;
            height: 1.5px;
            background: var(--secondary);
        }
        .section-title {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: var(--text-light);
        }
        .section-desc {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 48px;
            line-height: 1.7;
        }
        .text-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }
        .text-center {
            text-align: center;
        }

        /* ===== 分类卡片 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--primary-light);
            border: 1px solid var(--border);
            transition: var(--transition);
            cursor: pointer;
            min-height: 340px;
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            transform: translateY(-6px);
            border-color: var(--secondary);
            box-shadow: var(--shadow-glow);
        }
        .category-card .card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .category-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .category-card:hover .card-img img {
            transform: scale(1.08);
        }
        .category-card .card-img .img-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60%;
            background: linear-gradient(0deg, var(--primary-light) 0%, transparent 100%);
        }
        .category-card .card-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .category-card .card-tag {
            display: inline-block;
            padding: 3px 14px;
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--secondary);
            background: rgba(201, 168, 76, 0.12);
            border-radius: 50px;
            margin-bottom: 10px;
            align-self: flex-start;
            letter-spacing: 0.3px;
        }
        .category-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-light);
        }
        .category-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            flex: 1;
            margin-bottom: 14px;
            line-height: 1.6;
        }
        .category-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--secondary);
            transition: var(--transition);
        }
        .category-card .card-link i {
            font-size: 0.75rem;
            transition: var(--transition);
        }
        .category-card:hover .card-link i {
            transform: translateX(4px);
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 32px 20px;
            background: var(--primary-light);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .stat-item:hover {
            border-color: var(--secondary);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: clamp(2.2rem, 4vw, 3.2rem);
            font-weight: 900;
            color: var(--secondary);
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .stat-number .stat-plus {
            font-size: 0.6em;
            vertical-align: super;
            color: var(--secondary-light);
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ===== 最新资讯列表 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .news-card {
            display: flex;
            flex-direction: column;
            background: var(--primary-light);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .news-card:hover {
            transform: translateY(-4px);
            border-color: var(--secondary);
            box-shadow: var(--shadow-glow);
        }
        .news-card .news-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .news-card .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .news-card:hover .news-img img {
            transform: scale(1.06);
        }
        .news-card .news-img .news-cat {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 4px 14px;
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--dark);
            background: var(--secondary);
            border-radius: 50px;
            letter-spacing: 0.3px;
        }
        .news-card .news-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .news-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.78rem;
            color: var(--text-muted-dark);
            margin-bottom: 10px;
        }
        .news-card .news-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .news-card .news-meta i {
            font-size: 0.7rem;
        }
        .news-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-light);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            flex: 1;
            margin-bottom: 12px;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .news-readmore {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--secondary);
            transition: var(--transition);
        }
        .news-card .news-readmore i {
            font-size: 0.7rem;
            transition: var(--transition);
        }
        .news-card:hover .news-readmore i {
            transform: translateX(4px);
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            color: var(--text-muted);
            background: var(--primary-light);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border);
        }
        .news-empty i {
            font-size: 2.4rem;
            color: var(--text-muted-dark);
            margin-bottom: 16px;
        }
        .news-empty p {
            font-size: 1rem;
        }

        /* ===== 特色功能 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            padding: 32px 28px;
            background: var(--primary-light);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            transition: var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px auto;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(201, 168, 76, 0.15), rgba(201, 168, 76, 0.05));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--secondary);
            border: 1px solid rgba(201, 168, 76, 0.15);
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: linear-gradient(135deg, rgba(201, 168, 76, 0.25), rgba(201, 168, 76, 0.08));
            transform: scale(1.05);
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-light);
        }
        .feature-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: grid;
            gap: 12px;
        }
        .faq-item {
            background: var(--primary-light);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 1rem;
            font-weight: 600;
            text-align: left;
            cursor: pointer;
            transition: var(--transition);
            gap: 16px;
        }
        .faq-question:hover {
            color: var(--secondary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(201, 168, 76, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            color: var(--secondary);
            transition: var(--transition);
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            background: var(--secondary);
            color: var(--dark);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px 24px;
        }
        .faq-answer p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-bg {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            filter: brightness(0.25) saturate(0.8);
        }
        .cta-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(10, 10, 15, 0.8), rgba(26, 26, 46, 0.7));
        }
        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-light);
        }
        .cta-content p {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 32px;
            line-height: 1.7;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--darker);
            border-top: 1px solid var(--border);
            padding: 60px 0 30px 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .site-logo {
            font-size: 1.2rem;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-muted-dark);
            max-width: 320px;
            line-height: 1.7;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            font-size: 0.85rem;
            color: var(--text-muted-dark);
            transition: var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }
        .footer-bottom p {
            font-size: 0.8rem;
            color: var(--text-muted-dark);
            margin-bottom: 0;
        }
        .footer-bottom .footer-links {
            display: flex;
            gap: 20px;
        }
        .footer-bottom .footer-links a {
            font-size: 0.8rem;
            color: var(--text-muted-dark);
        }
        .footer-bottom .footer-links a:hover {
            color: var(--secondary);
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted-dark);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: rgba(201, 168, 76, 0.1);
            border-color: var(--secondary);
            color: var(--secondary);
            transform: translateY(-2px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-spacing: 64px;
            }
            .main-nav {
                display: none;
            }
            .nav-hot {
                display: none;
            }
            .nav-search {
                display: none;
            }
            .nav-toggler {
                display: block;
            }
            .hero-title {
                font-size: clamp(2rem, 8vw, 3rem);
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn-primary-custom,
            .hero-actions .btn-outline-custom {
                justify-content: center;
            }
            .category-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom .footer-links {
                flex-wrap: wrap;
                justify-content: center;
            }
            .site-header .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .section-desc {
                font-size: 0.95rem;
                margin-bottom: 32px;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 0.92rem;
            }
            .cta-section {
                padding: 56px 0;
            }
            .news-card .news-img {
                height: 160px;
            }
            .category-card {
                min-height: 280px;
            }
            .category-card .card-img {
                height: 160px;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-item {
                padding: 16px 10px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .hero-content {
                padding: 24px 16px;
            }
            .hero-badge {
                font-size: 0.7rem;
                padding: 4px 14px;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .news-card .news-body {
                padding: 16px 18px 18px;
            }
            .feature-card {
                padding: 24px 20px;
            }
        }

        /* ===== 辅助 ===== */
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        .gap-8 {
            gap: 8px;
        }
        .gap-12 {
            gap: 12px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a56db;
            --primary-dark: #0f3a8e;
            --primary-light: #3b82f6;
            --primary-gradient: linear-gradient(135deg, #1a56db 0%, #0f3a8e 100%);
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --accent-gradient: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            --surface: #ffffff;
            --surface-alt: #f8fafc;
            --surface-card: #ffffff;
            --bg-dark: #0b1124;
            --bg-section: #f1f5f9;
            --text-primary: #0b1124;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --text-white: #ffffff;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 24px 60px rgba(0, 0, 0, 0.16);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--surface);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-primary);
        }
        p {
            margin-bottom: 0;
        }

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

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            flex-shrink: 0;
        }
        .site-logo:hover {
            text-decoration: none;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--primary-gradient);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 20px;
            letter-spacing: -0.5px;
            box-shadow: 0 4px 12px rgba(26, 86, 219, 0.3);
            transition: transform var(--transition);
        }
        .site-logo:hover .logo-icon {
            transform: scale(1.05);
        }
        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.3px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-link {
            padding: 8px 18px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(26, 86, 219, 0.06);
            text-decoration: none;
        }
        .nav-link.active {
            color: var(--primary);
            background: rgba(26, 86, 219, 0.10);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 2px;
            background: var(--primary-gradient);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: var(--surface-alt);
            border-radius: 10px;
            padding: 0 12px;
            border: 1px solid var(--border);
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .nav-search:focus-within {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.10);
        }
        .nav-search input {
            border: none;
            background: transparent;
            padding: 8px 8px;
            font-size: 14px;
            color: var(--text-primary);
            width: 140px;
            outline: none;
        }
        .nav-search input::placeholder {
            color: var(--text-muted);
        }
        .nav-search button {
            border: none;
            background: transparent;
            color: var(--text-muted);
            padding: 4px;
            cursor: pointer;
            transition: color var(--transition);
        }
        .nav-search button:hover {
            color: var(--primary);
        }
        .nav-hot {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(245, 158, 11, 0.10);
            padding: 4px 12px 4px 8px;
            border-radius: 20px;
            font-size: 13px;
        }
        .hot-label {
            color: var(--accent);
            font-size: 14px;
        }
        .hot-link {
            color: var(--accent);
            font-weight: 600;
            text-decoration: none;
        }
        .hot-link:hover {
            color: #d97706;
            text-decoration: underline;
        }
        .nav-toggler {
            display: none;
            border: none;
            background: transparent;
            font-size: 22px;
            color: var(--text-primary);
            padding: 4px 8px;
            cursor: pointer;
            border-radius: 8px;
            transition: background var(--transition);
        }
        .nav-toggler:hover {
            background: var(--surface-alt);
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            position: relative;
            background: var(--bg-dark);
            min-height: 340px;
            display: flex;
            align-items: center;
            overflow: hidden;
            isolation: isolate;
        }
        .category-hero .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.35;
            z-index: 0;
        }
        .category-hero .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 17, 36, 0.88) 0%, rgba(11, 17, 36, 0.60) 100%);
            z-index: 1;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
            padding: 60px 24px;
        }
        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 14px;
            color: var(--text-white);
            margin-bottom: 20px;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .category-hero .hero-badge i {
            color: var(--accent-light);
        }
        .category-hero h1 {
            font-size: 48px;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -1px;
            margin-bottom: 16px;
            line-height: 1.15;
        }
        .category-hero .hero-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.80);
            max-width: 620px;
            line-height: 1.6;
            margin-bottom: 28px;
        }
        .category-hero .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
        }
        .category-hero .hero-stat {
            display: flex;
            flex-direction: column;
        }
        .category-hero .hero-stat .num {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent-light);
            line-height: 1.2;
        }
        .category-hero .hero-stat .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.60);
        }

        /* ===== Section通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-section);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section .section-header .subtitle {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 8px;
            background: rgba(26, 86, 219, 0.08);
            padding: 4px 16px;
            border-radius: 20px;
        }
        .section .section-header h2 {
            font-size: 36px;
            font-weight: 700;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }
        .section .section-header p {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-dark .section-header h2 {
            color: var(--text-white);
        }
        .section-dark .section-header p {
            color: rgba(255, 255, 255, 0.70);
        }

        /* ===== Card 通用 ===== */
        .card-item {
            background: var(--surface-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            height: 100%;
        }
        .card-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .card-item .card-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            display: block;
        }
        .card-item .card-body {
            padding: 24px;
        }
        .card-item .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(26, 86, 219, 0.08);
            padding: 2px 12px;
            border-radius: 4px;
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }
        .card-item .card-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.35;
            color: var(--text-primary);
        }
        .card-item .card-title a {
            color: inherit;
        }
        .card-item .card-title a:hover {
            color: var(--primary);
        }
        .card-item .card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-item .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 14px;
            font-size: 13px;
            color: var(--text-muted);
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
        }
        .card-item .card-meta i {
            margin-right: 4px;
        }

        /* ===== Button ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            line-height: 1.4;
        }
        .btn:hover {
            text-decoration: none;
            transform: translateY(-2px);
        }
        .btn-primary {
            background: var(--primary-gradient);
            color: #fff;
            box-shadow: 0 4px 16px rgba(26, 86, 219, 0.30);
        }
        .btn-primary:hover {
            box-shadow: 0 8px 28px rgba(26, 86, 219, 0.40);
            color: #fff;
        }
        .btn-outline-light {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.30);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.10);
            border-color: rgba(255, 255, 255, 0.60);
            color: #fff;
        }
        .btn-accent {
            background: var(--accent-gradient);
            color: #fff;
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.30);
        }
        .btn-accent:hover {
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.40);
            color: #fff;
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
            border-radius: 8px;
        }
        .btn-link {
            color: var(--primary);
            background: transparent;
            padding: 0;
            font-weight: 600;
        }
        .btn-link:hover {
            color: var(--primary-dark);
            transform: none;
        }

        /* ===== Dimension Cards (评测维度) ===== */
        .dimension-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }
        .dimension-card {
            background: var(--surface-card);
            border-radius: var(--radius);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid var(--border);
            transition: all var(--transition);
            cursor: default;
        }
        .dimension-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .dimension-card .icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin: 0 auto 16px;
            color: #fff;
        }
        .dimension-card .icon.icon-perf {
            background: linear-gradient(135deg, #ef4444, #dc2626);
        }
        .dimension-card .icon.icon-camera {
            background: linear-gradient(135deg, #8b5cf6, #7c3aed);
        }
        .dimension-card .icon.icon-battery {
            background: linear-gradient(135deg, #10b981, #059669);
        }
        .dimension-card .icon.icon-screen {
            background: linear-gradient(135deg, #3b82f6, #2563eb);
        }
        .dimension-card .icon.icon-system {
            background: linear-gradient(135deg, #f59e0b, #d97706);
        }
        .dimension-card h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .dimension-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* ===== Data Block ===== */
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .data-block {
            background: var(--surface-card);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .data-block:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .data-block .num {
            font-size: 40px;
            font-weight: 800;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .data-block .num.accent {
            background: var(--accent-gradient);
            -webkit-background-clip: text;
            background-clip: text;
        }
        .data-block .label {
            font-size: 15px;
            color: var(--text-secondary);
            margin-top: 4px;
            font-weight: 500;
        }
        .data-block .desc {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 8px;
        }

        /* ===== Ranking List ===== */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--surface-card);
            border-radius: var(--radius-sm);
            padding: 16px 20px;
            border: 1px solid var(--border);
            transition: all var(--transition);
            cursor: default;
        }
        .ranking-item:hover {
            background: var(--surface-alt);
            border-color: var(--primary-light);
        }
        .ranking-item .rank {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            flex-shrink: 0;
            background: var(--bg-section);
            color: var(--text-muted);
        }
        .ranking-item:nth-child(1) .rank {
            background: linear-gradient(135deg, #f59e0b, #d97706);
            color: #fff;
        }
        .ranking-item:nth-child(2) .rank {
            background: linear-gradient(135deg, #94a3b8, #64748b);
            color: #fff;
        }
        .ranking-item:nth-child(3) .rank {
            background: linear-gradient(135deg, #cd7f32, #a0522d);
            color: #fff;
        }
        .ranking-item .rank-info {
            flex: 1;
        }
        .ranking-item .rank-info .rank-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
        }
        .ranking-item .rank-info .rank-meta {
            font-size: 13px;
            color: var(--text-muted);
        }
        .ranking-item .rank-score {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
        }

        /* ===== Process / Timeline ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .process-step {
            text-align: center;
            position: relative;
            padding: 0 12px;
        }
        .process-step::after {
            content: '';
            position: absolute;
            top: 28px;
            left: 60%;
            width: 80%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-light), transparent);
            pointer-events: none;
        }
        .process-step:last-child::after {
            display: none;
        }
        .process-step .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: #fff;
            font-size: 22px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 4px 16px rgba(26, 86, 219, 0.25);
        }
        .process-step h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .process-step p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.5;
        }
        .section-dark .process-step h4 {
            color: var(--text-white);
        }
        .section-dark .process-step p {
            color: rgba(255, 255, 255, 0.65);
        }
        .section-dark .process-step .step-num {
            box-shadow: 0 4px 20px rgba(26, 86, 219, 0.40);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--surface-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-item .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: background var(--transition);
            user-select: none;
        }
        .faq-item .faq-question:hover {
            background: var(--surface-alt);
        }
        .faq-item .faq-question .faq-icon {
            font-size: 18px;
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 18px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
            isolation: isolate;
        }
        .cta-section .cta-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 80px 24px;
        }
        .cta-section h2 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.70);
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-section .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.80);
            padding: 60px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-brand .site-logo {
            margin-bottom: 16px;
        }
        .footer-brand .site-logo .logo-text {
            color: var(--text-white);
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 18px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.50);
            font-size: 18px;
            transition: all var(--transition);
            text-decoration: none;
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            text-decoration: none;
            transition: color var(--transition);
            display: inline-flex;
            align-items: center;
        }
        .footer-col ul li a:hover {
            color: var(--primary-light);
        }
        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
            letter-spacing: 0.3px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .dimension-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
            .process-step::after {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .site-header .container {
                padding: 0 16px;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
            }
            .main-nav.open {
                display: flex;
            }
            .nav-link {
                width: 100%;
                padding: 12px 16px;
                font-size: 16px;
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-toggler {
                display: block;
            }
            .nav-search {
                display: none;
            }
            .nav-hot {
                display: none;
            }
            .category-hero {
                min-height: 260px;
            }
            .category-hero h1 {
                font-size: 32px;
            }
            .category-hero .hero-sub {
                font-size: 16px;
            }
            .category-hero .hero-stats {
                gap: 20px;
            }
            .category-hero .hero-stat .num {
                font-size: 22px;
            }
            .section {
                padding: 56px 0;
            }
            .section .section-header h2 {
                font-size: 28px;
            }
            .dimension-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .data-block .num {
                font-size: 32px;
            }
            .process-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .cta-section .container {
                padding: 56px 16px;
            }
            .cta-section h2 {
                font-size: 28px;
            }
        }

        @media (max-width: 520px) {
            .logo-text {
                font-size: 16px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .category-hero .hero-sub {
                font-size: 14px;
            }
            .section .section-header h2 {
                font-size: 24px;
            }
            .dimension-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .dimension-card {
                padding: 20px 12px;
            }
            .dimension-card .icon {
                width: 44px;
                height: 44px;
                font-size: 18px;
            }
            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-block {
                padding: 24px 16px;
            }
            .data-block .num {
                font-size: 28px;
            }
            .process-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .ranking-item {
                padding: 12px 16px;
                flex-wrap: wrap;
            }
            .faq-item .faq-question {
                padding: 14px 16px;
                font-size: 15px;
            }
            .faq-item .faq-answer {
                padding: 0 16px 14px;
                font-size: 14px;
            }
            .cta-section h2 {
                font-size: 24px;
            }
            .cta-section p {
                font-size: 15px;
            }
            .btn {
                padding: 10px 20px;
                font-size: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--surface-alt);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 3px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-muted);
        }

        /* ===== Focus ===== */
        :focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: 4px;
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a3a;
            --primary-light: #2c4258;
            --primary-dark: #0e1a26;
            --accent: #d4a853;
            --accent-light: #e8c87a;
            --accent-dark: #b8913a;
            --bg: #f5f7fa;
            --bg-card: #ffffff;
            --bg-dark: #0e1a26;
            --text: #2d3748;
            --text-light: #718096;
            --text-white: #f0f4f8;
            --border: #e2e8f0;
            --border-light: #f0f2f5;
            --shadow: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
        }

        /* ===== Reset / Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { list-style: none; padding: 0; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; letter-spacing: -0.01em; }
        .container { max-width: 1200px; padding: 0 24px; margin: 0 auto; }

        /* ===== Header / Nav (资讯门户吸顶) ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(26, 42, 58, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(212, 168, 83, 0.15);
            box-shadow: 0 2px 24px rgba(0,0,0,0.20);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 10px;
            padding-bottom: 10px;
            flex-wrap: nowrap;
        }
        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary-dark);
            font-weight: 800;
            font-size: 22px;
            border-radius: 10px;
            box-shadow: 0 4px 12px rgba(212, 168, 83, 0.3);
        }
        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-white);
            letter-spacing: 1px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            margin: 0 20px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(240, 244, 248, 0.75);
            transition: var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .nav-link:hover {
            color: var(--accent-light);
            background: rgba(212, 168, 83, 0.12);
        }
        .nav-link.active,
        .nav-link:active {
            color: #fff;
            background: rgba(212, 168, 83, 0.20);
            box-shadow: inset 0 0 0 1px rgba(212, 168, 83, 0.25);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.10);
            border-radius: 30px;
            padding: 0 6px 0 16px;
            transition: var(--transition);
        }
        .nav-search:focus-within {
            background: rgba(255,255,255,0.15);
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(212, 168, 83, 0.15);
        }
        .nav-search input {
            background: none;
            border: none;
            outline: none;
            padding: 7px 0;
            font-size: 14px;
            color: var(--text-white);
            width: 120px;
            transition: var(--transition);
        }
        .nav-search input::placeholder { color: rgba(240, 244, 248, 0.4); }
        .nav-search button {
            background: none;
            border: none;
            color: rgba(240, 244, 248, 0.5);
            padding: 6px 10px;
            border-radius: 50%;
            transition: var(--transition);
            cursor: pointer;
        }
        .nav-search button:hover { color: var(--accent); }
        .nav-hot {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .hot-label { color: var(--accent); font-size: 14px; }
        .hot-link {
            color: rgba(240, 244, 248, 0.7);
            font-size: 13px;
            font-weight: 500;
            padding: 4px 10px;
            border-radius: 20px;
            background: rgba(212, 168, 83, 0.10);
            transition: var(--transition);
        }
        .hot-link:hover { color: #fff; background: rgba(212, 168, 83, 0.25); }
        .nav-toggler {
            display: none;
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 22px;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .nav-toggler:hover { background: rgba(255,255,255,0.08); }

        /* ===== 文章 Banner ===== */
        .article-banner {
            position: relative;
            padding: 80px 0 60px;
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            color: var(--text-white);
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(14,26,38,0.92) 0%, rgba(26,42,58,0.70) 50%, rgba(212,168,83,0.15) 100%);
            z-index: 1;
        }
        .article-banner .container { position: relative; z-index: 2; }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(240, 244, 248, 0.6);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .article-breadcrumb a { color: rgba(240, 244, 248, 0.7); }
        .article-breadcrumb a:hover { color: var(--accent-light); }
        .article-breadcrumb .sep { color: rgba(240, 244, 248, 0.3); }
        .article-breadcrumb .current { color: var(--accent-light); }
        .article-category-badge {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 30px;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }
        .article-title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            max-width: 860px;
            text-shadow: 0 2px 16px rgba(0,0,0,0.3);
            margin-bottom: 20px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 24px;
            font-size: 15px;
            color: rgba(240, 244, 248, 0.7);
            flex-wrap: wrap;
        }
        .article-meta i { margin-right: 6px; color: var(--accent); }
        .article-meta .author { font-weight: 500; color: rgba(240, 244, 248, 0.85); }

        /* ===== 文章正文区 ===== */
        .article-body-section {
            padding: 60px 0 40px;
            background: var(--bg);
        }
        .article-content-wrap {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 48px 52px;
            border: 1px solid var(--border);
        }
        .article-content {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text);
        }
        .article-content p {
            margin-bottom: 1.4em;
        }
        .article-content h2, .article-content h3 {
            margin-top: 1.6em;
            margin-bottom: 0.6em;
            color: var(--primary);
        }
        .article-content h2 { font-size: 26px; border-bottom: 2px solid var(--border-light); padding-bottom: 10px; }
        .article-content h3 { font-size: 21px; }
        .article-content ul, .article-content ol {
            margin-bottom: 1.4em;
            padding-left: 24px;
        }
        .article-content ul li { list-style: disc; margin-bottom: 6px; }
        .article-content ol li { list-style: decimal; margin-bottom: 6px; }
        .article-content img {
            border-radius: var(--radius);
            margin: 24px 0;
            box-shadow: var(--shadow);
        }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            padding: 16px 24px;
            margin: 24px 0;
            background: rgba(212, 168, 83, 0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
            font-style: italic;
        }
        .article-content a { color: var(--accent-dark); text-decoration: underline; }
        .article-content a:hover { color: var(--accent); }

        /* ===== 文章信息栏 ===== */
        .article-info-bar {
            padding: 28px 0 8px;
            border-top: 1px solid var(--border);
            margin-top: 36px;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 16px;
        }
        .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 30px;
            font-size: 13px;
            color: var(--text-light);
            transition: var(--transition);
        }
        .tag-item:hover {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .tag-item i { font-size: 12px; }
        .share-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 12px;
        }
        .share-actions span { font-size: 14px; color: var(--text-light); font-weight: 500; }
        .share-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text-light);
            font-size: 16px;
            transition: var(--transition);
            cursor: pointer;
        }
        .share-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); transform: translateY(-2px); }

        /* ===== 上下篇导航 ===== */
        .article-nav-section {
            padding: 24px 0 48px;
            background: var(--bg);
        }
        .article-nav-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .article-nav-card {
            display: flex;
            flex-direction: column;
            padding: 24px 28px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .article-nav-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--accent);
        }
        .article-nav-card .nav-label {
            font-size: 13px;
            color: var(--text-light);
            font-weight: 500;
            margin-bottom: 6px;
        }
        .article-nav-card .nav-label i { margin-right: 6px; color: var(--accent); }
        .article-nav-card .nav-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary);
            line-height: 1.4;
        }
        .article-nav-card:hover .nav-title { color: var(--accent-dark); }
        .article-nav-card.next { text-align: right; }
        .article-nav-card.next .nav-label i { margin-right: 0; margin-left: 6px; }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-subtitle {
            font-size: 14px;
            color: var(--accent);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 3px;
            margin-bottom: 8px;
        }
        .section-header h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
        }
        .section-header p {
            color: var(--text-light);
            max-width: 520px;
            margin: 12px auto 0;
            font-size: 16px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .related-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card .card-body {
            padding: 18px 20px 22px;
        }
        .related-card .card-category {
            font-size: 12px;
            color: var(--accent);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 6px;
        }
        .related-card .card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.35;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card:hover .card-title { color: var(--accent-dark); }
        .related-card .card-meta {
            font-size: 13px;
            color: var(--text-light);
        }
        .related-card .card-meta i { margin-right: 4px; }

        /* ===== CTA ===== */
        .cta-section {
            padding: 70px 0;
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(14,26,38,0.90) 0%, rgba(26,42,58,0.75) 100%);
            z-index: 1;
        }
        .cta-section .container { position: relative; z-index: 2; text-align: center; }
        .cta-section h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section p {
            color: rgba(240, 244, 248, 0.7);
            max-width: 560px;
            margin: 0 auto 28px;
            font-size: 17px;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 36px;
            font-size: 16px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-cta.primary {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary-dark);
            box-shadow: 0 8px 24px rgba(212, 168, 83, 0.35);
        }
        .btn-cta.primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(212, 168, 83, 0.45);
            color: var(--primary-dark);
        }
        .btn-cta.outline {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(240, 244, 248, 0.25);
        }
        .btn-cta.outline:hover {
            border-color: var(--accent);
            color: var(--accent-light);
            transform: translateY(-3px);
            background: rgba(212, 168, 83, 0.10);
        }

        /* ===== 内容未找到 ===== */
        .not-found-block {
            text-align: center;
            padding: 60px 20px;
        }
        .not-found-block .nf-icon {
            font-size: 64px;
            color: var(--accent);
            margin-bottom: 20px;
        }
        .not-found-block h3 {
            font-size: 26px;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .not-found-block p {
            color: var(--text-light);
            margin-bottom: 24px;
        }
        .not-found-block .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            background: var(--accent);
            color: var(--primary-dark);
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-block .btn-back:hover { background: var(--accent-light); transform: translateY(-2px); }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(240, 244, 248, 0.7);
            padding: 60px 0 30px;
            border-top: 1px solid rgba(212, 168, 83, 0.10);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .site-logo { margin-bottom: 16px; }
        .footer-brand p { font-size: 15px; line-height: 1.7; max-width: 340px; }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            color: rgba(240, 244, 248, 0.6);
            font-size: 18px;
            margin-right: 10px;
            transition: var(--transition);
        }
        .footer-social a:hover { background: var(--accent); color: var(--primary-dark); }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 18px;
        }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a {
            color: rgba(240, 244, 248, 0.6);
            font-size: 15px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover { color: var(--accent-light); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 24px;
            text-align: center;
            font-size: 14px;
            color: rgba(240, 244, 248, 0.4);
        }
        .footer-bottom a { color: rgba(240, 244, 248, 0.5); }
        .footer-bottom a:hover { color: var(--accent-light); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .article-title { font-size: 30px; }
        }
        @media (max-width: 768px) {
            .main-nav { display: none; }
            .nav-toggler { display: block; }
            .nav-search input { width: 80px; }
            .nav-search { padding: 0 4px 0 12px; }
            .nav-hot .hot-link { display: none; }
            .article-title { font-size: 26px; }
            .article-content-wrap { padding: 28px 24px; }
            .article-content { font-size: 16px; }
            .article-nav-grid { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: 1fr 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .section-header h2 { font-size: 26px; }
            .cta-section h2 { font-size: 26px; }
            .article-banner { padding: 60px 0 40px; }
        }
        @media (max-width: 520px) {
            .site-header .container { padding-top: 8px; padding-bottom: 8px; }
            .logo-text { font-size: 16px; }
            .logo-icon { width: 34px; height: 34px; font-size: 18px; }
            .nav-search { display: none; }
            .article-title { font-size: 22px; }
            .article-content-wrap { padding: 20px 16px; border-radius: var(--radius); }
            .article-meta { gap: 12px; font-size: 13px; flex-wrap: wrap; }
            .related-grid { grid-template-columns: 1fr; }
            .cta-buttons { flex-direction: column; align-items: center; }
            .btn-cta { width: 100%; justify-content: center; }
            .section-header h2 { font-size: 22px; }
            .article-breadcrumb { font-size: 12px; }
        }

        /* ===== 移动端导航抽屉 (由 nav-toggler 控制) ===== */
        .mobile-nav-open .main-nav {
            display: flex;
            flex-direction: column;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: rgba(14, 26, 38, 0.98);
            backdrop-filter: blur(16px);
            padding: 16px 24px;
            gap: 4px;
            border-bottom: 2px solid rgba(212, 168, 83, 0.20);
            box-shadow: 0 20px 40px rgba(0,0,0,0.4);
            z-index: 1040;
        }
        .mobile-nav-open .main-nav .nav-link {
            padding: 12px 20px;
            border-radius: 10px;
            font-size: 16px;
        }

/* roulang page: category3 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a1a2e;
            --primary-light: #2d2d44;
            --primary-dark: #0f0f1a;
            --accent: #e94560;
            --accent-hover: #d63850;
            --accent-light: rgba(233, 69, 96, 0.12);
            --gold: #f5a623;
            --gold-light: rgba(245, 166, 35, 0.15);
            --bg-body: #f4f5f9;
            --bg-card: #ffffff;
            --bg-dark: #16213e;
            --bg-darker: #0f1a2e;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5a;
            --text-light: #7a7a8a;
            --text-white: #f0f0f5;
            --border-color: #e2e4ea;
            --border-light: #f0f1f5;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.14);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.28s cubic-bezier(0.22, 1, 0.36, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-family);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.65;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-hover);
            text-decoration: none;
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 头部导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 1px 12px rgba(0, 0, 0, 0.04);
            transition: var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }

        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none !important;
        }

        .site-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 20px;
            letter-spacing: -0.5px;
            box-shadow: 0 2px 10px rgba(233, 69, 96, 0.30);
        }

        .site-logo .logo-text {
            font-weight: 700;
            font-size: 20px;
            color: var(--primary);
            letter-spacing: -0.3px;
        }

        @media (max-width: 600px) {
            .site-logo .logo-text {
                font-size: 17px;
            }
            .site-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 16px;
            }
        }

        /* 主导航 */
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .main-nav .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 15px;
            padding: 6px 16px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
            text-decoration: none !important;
        }

        .main-nav .nav-link:hover {
            color: var(--primary);
            background: var(--border-light);
        }

        .main-nav .nav-link.active {
            color: var(--accent);
            background: var(--accent-light);
            font-weight: 600;
        }

        .main-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }

        /* 导航右侧 */
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: var(--border-light);
            border-radius: 40px;
            padding: 0 12px;
            border: 1px solid transparent;
            transition: var(--transition);
        }
        .nav-search:focus-within {
            border-color: var(--accent);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(233, 69, 96, 0.10);
        }
        .nav-search input {
            border: none;
            background: transparent;
            padding: 7px 6px 7px 0;
            font-size: 14px;
            color: var(--text-primary);
            width: 120px;
            outline: none;
        }
        .nav-search input::placeholder {
            color: var(--text-light);
        }
        .nav-search button {
            border: none;
            background: transparent;
            color: var(--text-light);
            padding: 4px 2px;
            cursor: pointer;
            transition: var(--transition);
            font-size: 14px;
        }
        .nav-search button:hover {
            color: var(--accent);
        }

        .nav-hot {
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
        }
        .nav-hot .hot-label {
            color: var(--accent);
        }
        .nav-hot .hot-link {
            color: var(--text-secondary);
            font-weight: 500;
            padding: 2px 8px;
            border-radius: 20px;
            background: var(--gold-light);
            font-size: 13px;
            text-decoration: none !important;
        }
        .nav-hot .hot-link:hover {
            background: var(--gold);
            color: #fff;
        }

        .nav-toggler {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--primary);
            padding: 4px 8px;
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-toggler:hover {
            color: var(--accent);
        }

        /* 移动端导航 */
        @media (max-width: 992px) {
            .main-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px 28px;
                gap: 8px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-bottom: 2px solid var(--border-color);
                align-items: stretch;
                z-index: 1040;
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .main-nav .nav-link {
                padding: 12px 16px;
                font-size: 16px;
                border-radius: var(--radius-sm);
                text-align: center;
            }
            .main-nav .nav-link.active::after {
                display: none;
            }
            .nav-toggler {
                display: block;
            }
            .nav-search input {
                width: 90px;
            }
            .nav-hot .hot-link {
                font-size: 12px;
                padding: 0 6px;
            }
        }

        @media (max-width: 520px) {
            .nav-search input {
                width: 70px;
                font-size: 13px;
            }
            .nav-actions {
                gap: 6px;
            }
            .nav-hot .hot-link {
                display: none;
            }
            .site-logo .logo-text {
                font-size: 15px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-white);
            padding: 60px 0 0;
            margin-top: 0;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .site-footer .footer-brand p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            line-height: 1.7;
            margin-top: 14px;
        }

        .site-footer .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.7);
            font-size: 16px;
            margin-right: 10px;
            transition: var(--transition);
            text-decoration: none !important;
        }
        .site-footer .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-3px);
        }

        .site-footer .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }

        .site-footer .footer-col ul li {
            margin-bottom: 10px;
        }
        .site-footer .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            transition: var(--transition);
            text-decoration: none !important;
        }
        .site-footer .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .site-footer .footer-bottom {
            padding: 24px 0;
            text-align: center;
            color: rgba(255, 255, 255, 0.35);
            font-size: 13px;
        }
        .site-footer .footer-bottom p {
            margin: 0;
        }

        @media (max-width: 992px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 640px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer {
                padding: 40px 0 0;
            }
        }

        /* ===== 页面通用 ===== */
        .page-hero {
            background: var(--bg-dark);
            position: relative;
            padding: 60px 0 70px;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            background-color: rgba(15, 26, 46, 0.78);
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 26, 46, 0.88) 0%, rgba(26, 26, 46, 0.70) 100%);
            z-index: 1;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-hero h1 {
            font-size: 42px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .page-hero p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 680px;
            margin: 0 auto 20px;
            line-height: 1.6;
        }
        .page-hero .hero-badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 18px;
            border-radius: 40px;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }
        .page-hero .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .page-hero .hero-stats .stat-item {
            text-align: center;
        }
        .page-hero .hero-stats .stat-num {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .page-hero .hero-stats .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 44px 0 50px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero p {
                font-size: 16px;
            }
            .page-hero .hero-stats {
                gap: 24px;
            }
            .page-hero .hero-stats .stat-num {
                font-size: 26px;
            }
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 70px 0;
        }
        .section-alt {
            background: #fff;
        }
        .section-dark {
            background: var(--bg-dark);
            color: #fff;
        }
        .section-sm {
            padding: 50px 0;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }
        .section-sub {
            font-size: 16px;
            color: var(--text-light);
            max-width: 600px;
            margin-bottom: 36px;
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-dark .section-sub {
            color: rgba(255, 255, 255, 0.6);
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .section-sub {
                font-size: 15px;
                margin-bottom: 24px;
            }
        }

        /* ===== 卡片 ===== */
        .card-modern {
            background: var(--bg-card);
            border: none;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
        }
        .card-modern:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .card-modern .card-img-top {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            border-bottom: 1px solid var(--border-light);
        }
        .card-modern .card-body {
            padding: 20px 22px 24px;
        }
        .card-modern .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            background: var(--accent-light);
            padding: 2px 12px;
            border-radius: 20px;
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }
        .card-modern .card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-modern .card-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-modern .card-meta {
            font-size: 13px;
            color: var(--text-light);
            margin-top: 12px;
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .card-modern .card-meta i {
            margin-right: 4px;
        }

        /* ===== 按钮 ===== */
        .btn-milan {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 28px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            border-radius: 40px;
            background: var(--accent);
            color: #fff;
            transition: var(--transition);
            cursor: pointer;
            text-decoration: none !important;
            box-shadow: 0 4px 16px rgba(233, 69, 96, 0.30);
        }
        .btn-milan:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(233, 69, 96, 0.40);
            color: #fff;
        }
        .btn-milan:active {
            transform: translateY(0);
        }

        .btn-outline-milan {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 9px 26px;
            font-size: 15px;
            font-weight: 600;
            border: 2px solid var(--accent);
            border-radius: 40px;
            background: transparent;
            color: var(--accent);
            transition: var(--transition);
            cursor: pointer;
            text-decoration: none !important;
        }
        .btn-outline-milan:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(233, 69, 96, 0.25);
        }

        .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 28px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            border-radius: 40px;
            background: #fff;
            color: var(--primary);
            transition: var(--transition);
            cursor: pointer;
            text-decoration: none !important;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.10);
        }
        .btn-white:hover {
            background: #f0f0f5;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.15);
            color: var(--primary);
        }

        /* ===== 标签 ===== */
        .badge-milan {
            display: inline-block;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 20px;
            background: var(--accent-light);
            color: var(--accent);
            letter-spacing: 0.3px;
        }
        .badge-gold {
            background: var(--gold-light);
            color: var(--gold);
        }
        .badge-dark {
            background: rgba(26, 26, 46, 0.08);
            color: var(--primary);
        }

        /* ===== 分类过滤 ===== */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 32px;
            justify-content: center;
        }
        .filter-bar .filter-btn {
            padding: 6px 20px;
            border-radius: 40px;
            border: 1px solid var(--border-color);
            background: #fff;
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            cursor: pointer;
        }
        .filter-bar .filter-btn:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: var(--accent-light);
        }
        .filter-bar .filter-btn.active {
            border-color: var(--accent);
            background: var(--accent);
            color: #fff;
        }

        /* ===== 特色文章 ===== */
        .feature-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-dark);
            min-height: 320px;
            display: flex;
            align-items: flex-end;
        }
        .feature-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.55;
        }
        .feature-card .feature-overlay {
            position: relative;
            z-index: 2;
            padding: 32px 28px;
            background: linear-gradient(0deg, rgba(15, 26, 46, 0.92) 40%, transparent 100%);
            width: 100%;
        }
        .feature-card .feature-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: #fff;
            background: var(--accent);
            padding: 2px 14px;
            border-radius: 20px;
            margin-bottom: 10px;
        }
        .feature-card .feature-title {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
            line-height: 1.3;
        }
        .feature-card .feature-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 500px;
        }

        /* ===== 列表样式 ===== */
        .list-group-milan {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .list-group-milan .list-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: #fff;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            cursor: default;
        }
        .list-group-milan .list-item:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-md);
        }
        .list-group-milan .list-item .item-index {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--accent-light);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
        }
        .list-group-milan .list-item .item-content {
            flex: 1;
        }
        .list-group-milan .list-item .item-title {
            font-weight: 600;
            font-size: 16px;
            color: var(--primary);
        }
        .list-group-milan .list-item .item-desc {
            font-size: 13px;
            color: var(--text-light);
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: #fff;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-item .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 16px;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            user-select: none;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-item .faq-question:hover {
            color: var(--accent);
        }
        .faq-item .faq-question i {
            transition: transform 0.3s ease;
            color: var(--text-light);
        }
        .faq-item .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 22px 18px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-item .faq-answer.open {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            background-color: rgba(15, 26, 46, 0.82);
            padding: 70px 0;
            text-align: center;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 26, 46, 0.88) 0%, rgba(26, 26, 46, 0.72) 100%);
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 34px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 580px;
            margin: 0 auto 28px;
        }
        .cta-section .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        @media (max-width: 768px) {
            .cta-section h2 {
                font-size: 24px;
            }
            .cta-section p {
                font-size: 15px;
            }
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-milan {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-light);
            padding: 16px 0;
            flex-wrap: wrap;
        }
        .breadcrumb-milan a {
            color: var(--text-light);
            text-decoration: none;
        }
        .breadcrumb-milan a:hover {
            color: var(--accent);
        }
        .breadcrumb-milan .sep {
            color: var(--border-color);
        }
        .breadcrumb-milan .current {
            color: var(--primary);
            font-weight: 500;
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 576px) {
            .feature-card {
                min-height: 240px;
            }
            .feature-card .feature-title {
                font-size: 19px;
            }
            .feature-card .feature-overlay {
                padding: 20px 18px;
            }
            .card-modern .card-body {
                padding: 16px 16px 20px;
            }
            .card-modern .card-title {
                font-size: 16px;
            }
            .list-group-milan .list-item {
                padding: 12px 14px;
            }
            .filter-bar .filter-btn {
                font-size: 13px;
                padding: 4px 14px;
            }
        }

        /* ===== 辅助类 ===== */
        .text-accent {
            color: var(--accent);
        }
        .text-gold {
            color: var(--gold);
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mt-1 {
            margin-top: 8px;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mt-3 {
            margin-top: 24px;
        }
        .gap-2 {
            gap: 12px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a5c;
            --primary-dark: #0f2640;
            --primary-light: #2a5a8c;
            --primary-lighter: #e8f0fa;
            --accent: #f0a500;
            --accent-dark: #d49100;
            --accent-light: #fff2d6;
            --bg-body: #f5f7fa;
            --bg-white: #ffffff;
            --bg-dark: #0d1b2a;
            --bg-card: #ffffff;
            --bg-section-alt: #f0f4f9;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-weak: #8a8aaa;
            --text-inverse: #f5f7fa;
            --text-accent: #f0a500;
            --border-light: #e2e8f0;
            --border-medium: #cbd5e0;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 14px 40px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 24px 60px rgba(0, 0, 0, 0.14);
            --font-sans: 'Noto Sans SC', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --header-height: 72px;
            --nav-top-bg: rgba(13, 27, 42, 0.96);
            --nav-blur: blur(12px);
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }

        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / 导航 (吸顶) ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: var(--nav-top-bg);
            backdrop-filter: var(--nav-blur);
            -webkit-backdrop-filter: var(--nav-blur);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: background var(--transition), box-shadow var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            flex-wrap: nowrap;
            gap: 16px;
        }

        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
            color: #fff !important;
            text-decoration: none;
        }
        .site-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), #e88300);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 20px;
            color: #0d1b2a;
            box-shadow: 0 2px 12px rgba(240, 165, 0, 0.3);
            transition: transform var(--transition);
        }
        .site-logo:hover .logo-icon {
            transform: rotate(-8deg) scale(1.05);
        }
        .site-logo .logo-text {
            font-weight: 700;
            font-size: 18px;
            letter-spacing: 0.5px;
            color: #fff;
        }

        /* 主导航 */
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .main-nav::-webkit-scrollbar {
            display: none;
        }
        .main-nav .nav-link {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 20px;
            transition: all var(--transition);
            white-space: nowrap;
            background: transparent;
            border: none;
            text-decoration: none;
        }
        .main-nav .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        .main-nav .nav-link.active {
            color: #0d1b2a;
            background: var(--accent);
            font-weight: 600;
            box-shadow: 0 2px 12px rgba(240, 165, 0, 0.25);
        }

        /* 右侧操作区 */
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 20px;
            padding: 0 12px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition);
        }
        .nav-search:focus-within {
            background: rgba(255, 255, 255, 0.14);
            border-color: var(--accent);
        }
        .nav-search input {
            background: none;
            border: none;
            padding: 6px 8px;
            font-size: 13px;
            color: #fff;
            width: 120px;
            outline: none;
            font-family: var(--font-sans);
        }
        .nav-search input::placeholder {
            color: rgba(255, 255, 255, 0.35);
        }
        .nav-search button {
            background: none;
            border: none;
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
            padding: 4px;
            cursor: pointer;
            transition: color var(--transition);
        }
        .nav-search button:hover {
            color: var(--accent);
        }

        .nav-hot {
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            background: rgba(240, 165, 0, 0.12);
            padding: 4px 12px 4px 8px;
            border-radius: 16px;
            color: var(--accent);
        }
        .nav-hot .hot-label {
            display: flex;
            align-items: center;
            font-size: 12px;
        }
        .nav-hot .hot-link {
            color: var(--accent);
            font-weight: 600;
            font-size: 12px;
            text-decoration: none;
        }
        .nav-hot .hot-link:hover {
            color: #fff;
        }

        .nav-toggler {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 22px;
            padding: 4px 8px;
            cursor: pointer;
            transition: color var(--transition);
        }
        .nav-toggler:hover {
            color: var(--accent);
        }

        /* ===== 移动端导航折叠 ===== */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(13, 27, 42, 0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            z-index: 1040;
            padding: 32px 24px;
            flex-direction: column;
            gap: 12px;
            overflow-y: auto;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .mobile-nav-overlay.open {
            display: flex;
            opacity: 1;
        }
        .mobile-nav-overlay .nav-link {
            color: rgba(255, 255, 255, 0.75);
            font-size: 18px;
            font-weight: 500;
            padding: 14px 20px;
            border-radius: 12px;
            transition: all var(--transition);
            background: transparent;
            border: none;
            text-decoration: none;
            text-align: center;
        }
        .mobile-nav-overlay .nav-link:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }
        .mobile-nav-overlay .nav-link.active {
            color: #0d1b2a;
            background: var(--accent);
            font-weight: 700;
        }
        .mobile-search-row {
            display: flex;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 30px;
            padding: 0 16px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 12px;
        }
        .mobile-search-row input {
            background: none;
            border: none;
            padding: 14px 8px;
            font-size: 16px;
            color: #fff;
            flex: 1;
            outline: none;
            font-family: var(--font-sans);
        }
        .mobile-search-row input::placeholder {
            color: rgba(255, 255, 255, 0.3);
        }
        .mobile-search-row button {
            background: none;
            border: none;
            color: rgba(255, 255, 255, 0.5);
            font-size: 18px;
            padding: 8px;
            cursor: pointer;
        }

        /* ===== Hero 内页横幅 ===== */
        .page-hero {
            position: relative;
            padding: 80px 0 72px;
            background: var(--bg-dark);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.25;
            pointer-events: none;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.92) 0%, rgba(26, 58, 92, 0.70) 100%);
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-hero .hero-badge {
            display: inline-block;
            background: var(--accent);
            color: #0d1b2a;
            font-weight: 700;
            font-size: 12px;
            padding: 4px 16px;
            border-radius: 20px;
            letter-spacing: 1px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }
        .page-hero h1 {
            font-size: 44px;
            font-weight: 900;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .page-hero h1 span {
            color: var(--accent);
        }
        .page-hero p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 680px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }
        .page-hero .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 8px;
        }
        .page-hero .hero-stats .stat-item {
            text-align: center;
        }
        .page-hero .hero-stats .stat-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            display: block;
            line-height: 1.2;
        }
        .page-hero .hero-stats .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--bg-section-alt);
        }
        .section-white {
            background: var(--bg-white);
        }
        .section-dark {
            background: var(--bg-dark);
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 8px;
            letter-spacing: -0.3px;
            color: var(--text-primary);
        }
        .section-sub {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 600px;
            line-height: 1.7;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-sub {
            margin: 0 auto;
        }

        .section-header-left {
            text-align: left;
            margin-bottom: 36px;
        }
        .section-header-left .section-sub {
            margin: 8px 0 0;
        }

        /* ===== 卡片通用 ===== */
        .card-custom {
            background: var(--bg-card);
            border: none;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .card-custom .card-img-top {
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            object-fit: cover;
            height: 200px;
            width: 100%;
        }
        .card-custom .card-body {
            padding: 20px 22px 24px;
        }
        .card-custom .card-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-custom .card-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .card-custom .card-meta {
            font-size: 12px;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .card-custom .card-meta i {
            margin-right: 4px;
        }
        .card-tag {
            display: inline-block;
            background: var(--primary-lighter);
            color: var(--primary);
            font-size: 11px;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 12px;
            letter-spacing: 0.3px;
            margin-bottom: 10px;
        }
        .card-tag.accent {
            background: var(--accent-light);
            color: var(--accent-dark);
        }

        /* ===== 按钮 ===== */
        .btn-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 15px;
            border: none;
            transition: all var(--transition);
            cursor: pointer;
            font-family: var(--font-sans);
            text-decoration: none;
            line-height: 1.4;
        }
        .btn-custom-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-custom-primary:hover {
            background: var(--primary-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 58, 92, 0.25);
        }
        .btn-custom-accent {
            background: var(--accent);
            color: #0d1b2a;
        }
        .btn-custom-accent:hover {
            background: var(--accent-dark);
            color: #0d1b2a;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(240, 165, 0, 0.30);
        }
        .btn-custom-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-custom-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-custom-sm {
            padding: 8px 20px;
            font-size: 13px;
        }

        /* ===== 分类标签组 ===== */
        .tag-group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }
        .tag-group .tag-item {
            display: inline-block;
            padding: 8px 20px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            color: var(--text-secondary);
            transition: all var(--transition);
            cursor: pointer;
            text-decoration: none;
        }
        .tag-group .tag-item:hover {
            border-color: var(--accent);
            color: var(--accent-dark);
            background: var(--accent-light);
            transform: translateY(-1px);
        }
        .tag-group .tag-item.active {
            background: var(--accent);
            color: #0d1b2a;
            border-color: var(--accent);
            font-weight: 600;
        }

        /* ===== 教程图文块 ===== */
        .tutorial-block {
            display: flex;
            gap: 40px;
            align-items: center;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
            margin-bottom: 28px;
            flex-wrap: wrap;
        }
        .tutorial-block:hover {
            box-shadow: var(--shadow-md);
        }
        .tutorial-block .tut-img {
            flex: 0 0 220px;
            border-radius: var(--radius-md);
            overflow: hidden;
        }
        .tutorial-block .tut-img img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: var(--radius-md);
        }
        .tutorial-block .tut-content {
            flex: 1;
            min-width: 240px;
        }
        .tutorial-block .tut-content h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .tutorial-block .tut-content .tut-meta {
            font-size: 13px;
            color: var(--text-weak);
            display: flex;
            gap: 20px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }
        .tutorial-block .tut-content p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 12px;
        }
        .tutorial-block .tut-content .tut-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .tutorial-block .tut-content .tut-tags span {
            background: var(--primary-lighter);
            color: var(--primary);
            font-size: 11px;
            padding: 2px 12px;
            border-radius: 12px;
            font-weight: 500;
        }

        /* ===== 功能网格 (系统功能亮点) ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--accent);
        }
        .feature-card .feat-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 16px;
            background: var(--primary-lighter);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
            transition: all var(--transition);
        }
        .feature-card:hover .feat-icon {
            background: var(--accent);
            color: #0d1b2a;
            transform: scale(1.05);
        }
        .feature-card h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .feature-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 20px 28px;
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
            border: 1px solid var(--border-light);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-item .faq-q {
            font-weight: 700;
            font-size: 16px;
            display: flex;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            color: var(--text-primary);
        }
        .faq-item .faq-q i {
            color: var(--accent);
            font-size: 18px;
            flex-shrink: 0;
        }
        .faq-item .faq-a {
            margin-top: 12px;
            padding-left: 32px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
            display: none;
        }
        .faq-item.open .faq-a {
            display: block;
        }
        .faq-item .faq-q .toggle-icon {
            margin-left: auto;
            transition: transform var(--transition);
            color: var(--text-weak);
        }
        .faq-item.open .faq-q .toggle-icon {
            transform: rotate(180deg);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.10;
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 16px;
            opacity: 0.8;
            max-width: 560px;
            margin: 0 auto 24px;
        }
        .cta-section .btn-custom-accent {
            font-size: 16px;
            padding: 14px 36px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 32px;
            margin-top: 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 12px;
        }
        .site-footer .footer-social a {
            display: inline-flex;
            width: 38px;
            height: 38px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            font-size: 16px;
            transition: all var(--transition);
            margin-right: 8px;
            text-decoration: none;
        }
        .site-footer .footer-social a:hover {
            background: var(--accent);
            color: #0d1b2a;
            transform: translateY(-2px);
        }
        .site-footer .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 10px;
        }
        .site-footer .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            transition: color var(--transition);
            text-decoration: none;
        }
        .site-footer .footer-col ul li a:hover {
            color: var(--accent);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
            text-decoration: none;
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            background: transparent;
            padding: 20px 0 8px;
            font-size: 13px;
            color: var(--text-weak);
        }
        .breadcrumb-wrap a {
            color: var(--text-weak);
            text-decoration: none;
        }
        .breadcrumb-wrap a:hover {
            color: var(--primary);
        }
        .breadcrumb-wrap span {
            color: var(--text-secondary);
        }
        .breadcrumb-wrap .sep {
            margin: 0 10px;
            color: var(--text-weak);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .page-hero h1 {
                font-size: 34px;
            }
            .tutorial-block .tut-img {
                flex: 0 0 180px;
            }
        }

        @media (max-width: 820px) {
            .nav-search {
                display: none;
            }
            .nav-hot {
                display: none;
            }
            .nav-toggler {
                display: block;
            }
            .main-nav {
                display: none;
            }
            .page-hero {
                padding: 60px 0 56px;
                min-height: 260px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero p {
                font-size: 15px;
            }
            .page-hero .hero-stats {
                gap: 20px;
            }
            .page-hero .hero-stats .stat-num {
                font-size: 22px;
            }
            .section {
                padding: 52px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .cta-section {
                padding: 40px 24px;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .tutorial-block {
                flex-direction: column;
                padding: 24px;
            }
            .tutorial-block .tut-img {
                flex: 0 0 auto;
                width: 100%;
            }
            .tutorial-block .tut-img img {
                height: 180px;
            }
            .feature-grid {
                grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            }
        }

        @media (max-width: 576px) {
            :root {
                --header-height: 62px;
            }
            .site-logo .logo-text {
                font-size: 15px;
            }
            .site-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 16px;
            }
            .page-hero h1 {
                font-size: 24px;
            }
            .page-hero .hero-stats .stat-item {
                min-width: 70px;
            }
            .section-title {
                font-size: 22px;
            }
            .section {
                padding: 40px 0;
            }
            .card-custom .card-img-top {
                height: 160px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer {
                padding: 40px 0 24px;
            }
            .cta-section {
                padding: 32px 18px;
                border-radius: var(--radius-md);
            }
            .cta-section h2 {
                font-size: 22px;
            }
            .faq-item {
                padding: 16px 18px;
            }
            .tutorial-block {
                padding: 18px;
            }
            .tutorial-block .tut-content h3 {
                font-size: 17px;
            }
            .tag-group .tag-item {
                font-size: 12px;
                padding: 6px 14px;
            }
            .feature-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .feature-card {
                padding: 20px 14px;
            }
            .feature-card .feat-icon {
                width: 44px;
                height: 44px;
                font-size: 18px;
            }
            .feature-card h4 {
                font-size: 14px;
            }
            .breadcrumb-wrap {
                font-size: 12px;
                padding: 14px 0 4px;
            }
            .mobile-nav-overlay .nav-link {
                font-size: 16px;
                padding: 12px 16px;
            }
        }

        @media (max-width: 380px) {
            .page-hero h1 {
                font-size: 20px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .container {
                padding: 0 14px;
            }
        }