/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #6c3bff;
            --color-primary-dark: #5429cc;
            --color-primary-light: #8f66ff;
            --color-secondary: #ff7a00;
            --color-secondary-dark: #e66a00;
            --color-accent: #ffd700;
            --color-bg: #f8f7fc;
            --color-bg-alt: #f0eef8;
            --color-bg-dark: #1a1a2e;
            --color-bg-card: #ffffff;
            --color-text: #1a1a2e;
            --color-text-light: #6b6b80;
            --color-text-inverse: #f0f0f0;
            --color-border: #e0dce8;
            --color-border-light: #f0eef5;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(108, 59, 255, 0.06);
            --shadow-md: 0 6px 24px rgba(108, 59, 255, 0.10);
            --shadow-lg: 0 16px 48px rgba(108, 59, 255, 0.12);
            --shadow-glow: 0 0 30px rgba(108, 59, 255, 0.15);
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', sans-serif;
            --font-mono: 'SF Mono', 'Fira Code', monospace;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --space-xs: 0.5rem;
            --space-sm: 1rem;
            --space-md: 2rem;
            --space-lg: 4rem;
            --space-xl: 6rem;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        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 {
            margin-top: 0;
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-text);
        }

        p {
            margin-top: 0;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--space-sm);
        }

        .container-wide {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 var(--space-sm);
        }

        /* ===== 板块间距 ===== */
        .section {
            padding: var(--space-lg) 0;
        }
        .section-alt {
            background: var(--color-bg-alt);
        }
        .section-dark {
            background: var(--color-bg-dark);
            color: var(--color-text-inverse);
        }
        .section-dark h2,
        .section-dark h3,
        .section-dark .section-title {
            color: var(--color-text-inverse);
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 0.5rem;
            letter-spacing: -0.02em;
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--color-text-light);
            max-width: 640px;
            margin: 0 auto var(--space-md);
            text-align: center;
        }
        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.65);
        }

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

        /* ===== 导航 - SaaS 命令栏风格 ===== */
        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            padding: 0 var(--space-sm);
            max-width: 1200px;
            margin: 0 auto;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: -0.03em;
            flex-shrink: 0;
        }
        .logo i {
            color: var(--color-primary);
            font-size: 1.5rem;
        }
        .logo span {
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo:hover {
            opacity: 0.9;
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
        }
        .nav-main a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-light);
            padding: 0.4rem 0.8rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            position: relative;
        }
        .nav-main a:hover {
            color: var(--color-primary);
            background: rgba(108, 59, 255, 0.06);
        }
        .nav-main a.active {
            color: var(--color-primary);
            background: rgba(108, 59, 255, 0.10);
            font-weight: 600;
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 4px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            flex-shrink: 0;
        }

        .search-toggle {
            background: none;
            border: none;
            font-size: 1.1rem;
            color: var(--color-text-light);
            cursor: pointer;
            padding: 0.4rem 0.6rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .search-toggle:hover {
            color: var(--color-primary);
            background: rgba(108, 59, 255, 0.06);
        }

        .btn-cta-nav {
            background: var(--color-primary);
            color: #fff !important;
            padding: 0.55rem 1.4rem !important;
            border-radius: 50px !important;
            font-weight: 600 !important;
            font-size: 0.9rem !important;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .btn-cta-nav:hover {
            background: var(--color-primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(108, 59, 255, 0.30);
            color: #fff !important;
        }
        .btn-cta-nav:active {
            transform: translateY(0);
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--color-text);
            cursor: pointer;
            padding: 0.3rem;
        }

        /* 移动端导航 */
        .mobile-nav {
            display: none;
            background: var(--color-bg-card);
            border-top: 1px solid var(--color-border-light);
            padding: var(--space-sm);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
        }
        .mobile-nav.open {
            display: block;
        }
        .mobile-nav a {
            display: block;
            padding: 0.75rem var(--space-sm);
            font-size: 1rem;
            font-weight: 500;
            color: var(--color-text-light);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .mobile-nav a:hover {
            background: rgba(108, 59, 255, 0.06);
            color: var(--color-primary);
        }
        .mobile-nav a.active {
            color: var(--color-primary);
            background: rgba(108, 59, 255, 0.10);
        }
        .mobile-nav .btn-cta-nav {
            margin-top: var(--space-sm);
            text-align: center;
            justify-content: center;
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            padding: var(--space-xl) 0 var(--space-lg);
            position: relative;
            overflow: hidden;
            background: linear-gradient(160deg, #f8f7fc 0%, #f0eef8 50%, #e8e4f8 100%);
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(108, 59, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 122, 0, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .hero-content h1 {
            font-size: 3.2rem;
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -0.03em;
            margin-bottom: 1rem;
        }
        .hero-content h1 .highlight {
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-content p {
            font-size: 1.15rem;
            color: var(--color-text-light);
            max-width: 520px;
            margin-bottom: 1.8rem;
            line-height: 1.8;
        }

        .hero-buttons {
            display: flex;
            gap: var(--space-sm);
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--color-primary);
            color: #fff;
            padding: 0.8rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(108, 59, 255, 0.25);
        }
        .btn-primary:hover {
            background: var(--color-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(108, 59, 255, 0.35);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--color-text);
            padding: 0.8rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid var(--color-border);
            cursor: pointer;
            transition: all var(--transition);
        }
        .btn-secondary:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(108, 59, 255, 0.04);
            transform: translateY(-2px);
        }

        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
        }

        .hero-card-stack {
            width: 100%;
            max-width: 480px;
            aspect-ratio: 4/3;
            position: relative;
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg), var(--shadow-glow);
            padding: var(--space-md);
            border: 1px solid rgba(108, 59, 255, 0.08);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }
        .hero-card-stack .big-icon {
            font-size: 3.5rem;
            color: var(--color-primary);
            margin-bottom: 0.8rem;
        }
        .hero-card-stack h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 0.3rem;
        }
        .hero-card-stack p {
            color: var(--color-text-light);
            font-size: 0.95rem;
        }
        .hero-card-stack .badge-row {
            display: flex;
            gap: 0.6rem;
            margin-top: var(--space-sm);
            flex-wrap: wrap;
            justify-content: center;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            background: rgba(108, 59, 255, 0.08);
            color: var(--color-primary);
            padding: 0.3rem 0.9rem;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            border: 1px solid rgba(108, 59, 255, 0.12);
        }
        .badge i {
            font-size: 0.7rem;
        }
        .badge-hot {
            background: rgba(255, 122, 0, 0.10);
            color: var(--color-secondary);
            border-color: rgba(255, 122, 0, 0.15);
        }
        .badge-new {
            background: rgba(0, 200, 150, 0.10);
            color: #00c896;
            border-color: rgba(0, 200, 150, 0.15);
        }

        /* ===== 核心优势 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-md);
            margin-top: var(--space-sm);
        }

        .feature-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: var(--space-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(108, 59, 255, 0.12);
        }
        .feature-card .icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            font-size: 1.4rem;
            color: #fff;
        }
        .icon-purple {
            background: linear-gradient(135deg, #6c3bff, #8f66ff);
        }
        .icon-orange {
            background: linear-gradient(135deg, #ff7a00, #ff9a40);
        }
        .icon-teal {
            background: linear-gradient(135deg, #00c896, #00e0a8);
        }
        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .feature-card p {
            font-size: 0.95rem;
            color: var(--color-text-light);
            margin-bottom: 0;
        }

        /* ===== 分类入口 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--space-md);
            margin-top: var(--space-sm);
        }

        .category-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: var(--space-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            text-align: center;
            transition: all var(--transition);
            cursor: pointer;
        }
        .category-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(108, 59, 255, 0.12);
        }
        .category-card .cat-icon {
            font-size: 2.2rem;
            color: var(--color-primary);
            margin-bottom: 0.6rem;
        }
        .category-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.3rem;
        }
        .category-card p {
            font-size: 0.85rem;
            color: var(--color-text-light);
            margin-bottom: 0;
        }
        .category-card .cat-count {
            font-size: 0.75rem;
            color: var(--color-text-light);
            background: var(--color-bg-alt);
            padding: 0.15rem 0.6rem;
            border-radius: 50px;
            display: inline-block;
            margin-top: 0.4rem;
        }

        /* ===== 最新资讯列表 (CMS) ===== */
        .cms-list-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--space-md);
            margin-top: var(--space-sm);
        }

        .cms-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: var(--space-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .cms-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: rgba(108, 59, 255, 0.10);
        }
        .cms-card .cms-meta {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            font-size: 0.8rem;
            color: var(--color-text-light);
            margin-bottom: 0.5rem;
        }
        .cms-card .cms-meta .cat-tag {
            background: rgba(108, 59, 255, 0.08);
            color: var(--color-primary);
            padding: 0.1rem 0.6rem;
            border-radius: 50px;
            font-weight: 500;
        }
        .cms-card .cms-meta .cat-tag.hot {
            background: rgba(255, 122, 0, 0.10);
            color: var(--color-secondary);
        }
        .cms-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
            line-height: 1.4;
        }
        .cms-card h3 a {
            color: var(--color-text);
        }
        .cms-card h3 a:hover {
            color: var(--color-primary);
        }
        .cms-card .cms-excerpt {
            font-size: 0.92rem;
            color: var(--color-text-light);
            margin-bottom: 0.8rem;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .cms-card .cms-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--color-text-light);
            border-top: 1px solid var(--color-border-light);
            padding-top: 0.7rem;
        }
        .cms-card .cms-footer a {
            font-weight: 500;
            font-size: 0.85rem;
        }

        .empty-state {
            grid-column: 1 / -1;
            text-align: center;
            padding: var(--space-lg);
            color: var(--color-text-light);
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--color-border);
        }
        .empty-state i {
            font-size: 2.5rem;
            margin-bottom: 0.8rem;
            opacity: 0.4;
        }
        .empty-state p {
            font-size: 1rem;
            margin-bottom: 0;
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--space-md);
            margin-top: var(--space-sm);
        }

        .stat-item {
            text-align: center;
            padding: var(--space-md);
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(4px);
        }
        .stat-item .stat-number {
            font-size: 2.6rem;
            font-weight: 900;
            color: var(--color-accent);
            line-height: 1.1;
            letter-spacing: -0.03em;
        }
        .stat-item .stat-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 0.3rem;
        }

        /* ===== 使用流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--space-md);
            margin-top: var(--space-sm);
            position: relative;
        }
        .steps-grid::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary), var(--color-primary));
            opacity: 0.2;
        }

        .step-item {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .step-item .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            margin: 0 auto 1rem;
            box-shadow: 0 4px 16px rgba(108, 59, 255, 0.25);
        }
        .step-item:nth-child(2) .step-number {
            background: var(--color-secondary);
        }
        .step-item:nth-child(3) .step-number {
            background: #00c896;
        }
        .step-item:nth-child(4) .step-number {
            background: var(--color-accent);
            color: #1a1a2e;
        }
        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.3rem;
        }
        .step-item p {
            font-size: 0.88rem;
            color: var(--color-text-light);
            margin-bottom: 0;
        }
        .section-dark .step-item p {
            color: rgba(255, 255, 255, 0.65);
        }
        .section-dark .step-item h4 {
            color: #fff;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 800px;
            margin: var(--space-sm) auto 0;
        }

        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            margin-bottom: var(--space-sm);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-item .faq-question {
            padding: var(--space-sm) var(--space-md);
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-sm);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--color-text);
            transition: background var(--transition);
        }
        .faq-item .faq-question:hover {
            background: rgba(108, 59, 255, 0.03);
        }
        .faq-item .faq-question i {
            color: var(--color-primary);
            font-size: 0.9rem;
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 var(--space-md) var(--space-sm);
            font-size: 0.95rem;
            color: var(--color-text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-box {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            border-radius: var(--radius-lg);
            padding: var(--space-lg) var(--space-md);
            text-align: center;
            color: #fff;
            box-shadow: 0 16px 48px rgba(108, 59, 255, 0.25);
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
        }
        .cta-box h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 0.5rem;
        }
        .cta-box p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto var(--space-md);
        }
        .cta-box .btn-cta-big {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: #fff;
            color: var(--color-primary-dark) !important;
            padding: 0.9rem 2.4rem;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.10);
        }
        .cta-box .btn-cta-big:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.15);
            color: var(--color-primary) !important;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: var(--space-lg) 0 var(--space-md);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--space-md);
            margin-bottom: var(--space-md);
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 0.6rem;
        }
        .footer-brand .logo i {
            color: var(--color-accent);
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
            line-height: 1.7;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.88rem;
            padding: 0.25rem 0;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: var(--space-sm);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: var(--space-sm);
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.40);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.50);
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* ===== 移动端响应式 ===== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .hero-content p {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-content h1 {
                font-size: 2.6rem;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero-visual {
                order: -1;
            }
            .hero-card-stack {
                max-width: 380px;
                margin: 0 auto;
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid::before {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cms-list-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-main {
                display: none;
            }
            .menu-toggle {
                display: block;
            }
            .mobile-nav {
                display: none;
            }
            .mobile-nav.open {
                display: block;
            }
            .header-inner {
                height: 60px;
            }
            .logo {
                font-size: 1.1rem;
            }
            .hero {
                padding: var(--space-md) 0 var(--space-md);
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .hero-content p {
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .category-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-sm);
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-sm);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--space-md);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-box h2 {
                font-size: 1.5rem;
            }
            .cta-box p {
                font-size: 0.95rem;
            }
            .nav-actions .btn-cta-nav {
                padding: 0.5rem 1rem !important;
                font-size: 0.8rem !important;
            }
            .hero-card-stack {
                max-width: 300px;
                padding: var(--space-sm);
            }
            .hero-card-stack .big-icon {
                font-size: 2.5rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 0.75rem;
            }
            .hero-content h1 {
                font-size: 1.6rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.6rem;
            }
            .stat-item {
                padding: var(--space-sm);
            }
            .stat-item .stat-number {
                font-size: 1.6rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .btn-primary,
            .btn-secondary {
                padding: 0.6rem 1.4rem;
                font-size: 0.9rem;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            .cms-card {
                padding: var(--space-sm);
            }
            .cms-card h3 {
                font-size: 1rem;
            }
            .faq-item .faq-question {
                font-size: 0.95rem;
                padding: var(--space-sm);
            }
            .faq-item .faq-answer {
                padding: 0 var(--space-sm) var(--space-sm);
                font-size: 0.9rem;
            }
            .cta-box {
                padding: var(--space-md) var(--space-sm);
            }
            .cta-box .btn-cta-big {
                padding: 0.7rem 1.6rem;
                font-size: 0.95rem;
            }
        }

        /* ===== 辅助类 ===== */
        .mt-1 {
            margin-top: var(--space-sm);
        }
        .mt-2 {
            margin-top: var(--space-md);
        }
        .mb-1 {
            margin-bottom: var(--space-sm);
        }
        .mb-2 {
            margin-bottom: var(--space-md);
        }
        .gap-1 {
            gap: var(--space-sm);
        }
        .gap-2 {
            gap: var(--space-md);
        }

        /* Foundation 覆盖 - 更现代 */
        .grid-container {
            max-width: 1200px;
        }
        .button {
            border-radius: 50px;
            transition: all var(--transition);
        }
        .button.primary {
            background: var(--color-primary);
        }
        .button.primary:hover {
            background: var(--color-primary-dark);
            transform: translateY(-1px);
        }

        /* 滚动条美化 */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--color-bg-alt);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--color-border);
            border-radius: 8px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--color-text-light);
        }

        /* 选中文本 */
        ::selection {
            background: rgba(108, 59, 255, 0.18);
            color: var(--color-text);
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #b8860b;
            --primary-dark: #8b6508;
            --primary-light: #daa520;
            --accent: #cd5c5c;
            --accent-dark: #8b3a3a;
            --bg-dark: #1a1614;
            --bg-card: #231e1b;
            --bg-surface: #2a2420;
            --bg-input: #1e1a17;
            --text-main: #e8e0d5;
            --text-strong: #f5efe8;
            --text-muted: #a69888;
            --text-dim: #7a6e60;
            --border-color: #3d342e;
            --border-light: #4d423b;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.5);
            --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.6);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --font-body: 'Georgia', 'Noto Serif SC', 'Source Han Serif SC', serif;
            --font-heading: 'Georgia', 'Noto Serif SC', 'Source Han Serif SC', serif;
            --font-mono: 'Courier New', monospace;
            --transition: 0.25s ease;
            --spacing-section: 5rem;
            --spacing-block: 3rem;
        }

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

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

        body {
            font-family: var(--font-body);
            background: var(--bg-dark);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

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

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

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            color: var(--text-strong);
            line-height: 1.3;
            font-weight: 700;
        }

        /* ===== Container ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 1rem;
            }
        }

        /* ===== Foundation Overrides ===== */
        .grid-container {
            max-width: 1200px;
            padding: 0 1.5rem;
        }

        .grid-x,
        .grid-y,
        .grid-padding-x,
        .grid-padding-y {
            margin: 0;
        }

        .cell {
            padding: 0;
        }

        /* ===== Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(26, 22, 20, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            padding: 0.6rem 0;
        }

        .nav-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            flex-wrap: nowrap;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-family: var(--font-heading);
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-strong);
            flex-shrink: 0;
        }

        .nav-logo i {
            color: var(--primary-light);
            font-size: 1.6rem;
        }

        .nav-logo span {
            color: var(--text-strong);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex: 1;
            justify-content: center;
        }

        .nav-links a {
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            color: var(--text-muted);
            transition: background var(--transition), color var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--text-strong);
            background: rgba(218, 165, 32, 0.08);
        }

        .nav-links a.active {
            color: var(--primary-light);
            background: rgba(218, 165, 32, 0.12);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 2px;
            background: var(--primary-light);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-input);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 0.3rem 0.8rem;
            gap: 0.5rem;
            transition: border-color var(--transition), box-shadow var(--transition);
            min-width: 180px;
        }

        .search-box:focus-within {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(218, 165, 32, 0.15);
        }

        .search-box i {
            color: var(--text-dim);
            font-size: 0.85rem;
        }

        .search-box input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--text-main);
            width: 100%;
            font-size: 0.9rem;
            padding: 0.2rem 0;
        }

        .search-box input::placeholder {
            color: var(--text-dim);
        }

        .btn-cta-nav {
            background: var(--primary);
            color: #1a1614;
            padding: 0.5rem 1.2rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            transition: background var(--transition), transform var(--transition);
            white-space: nowrap;
            font-family: var(--font-body);
        }

        .btn-cta-nav:hover {
            background: var(--primary-light);
            color: #1a1614;
            transform: translateY(-1px);
        }

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

        /* Mobile toggle */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-strong);
            font-size: 1.5rem;
            padding: 0.25rem;
            cursor: pointer;
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(26, 22, 20, 0.98);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 1rem 1.5rem;
                border-bottom: 1px solid var(--border-color);
                gap: 0.25rem;
                box-shadow: var(--shadow-lg);
            }

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

            .nav-links a {
                padding: 0.75rem 1rem;
                width: 100%;
                text-align: center;
            }

            .nav-links a.active::after {
                bottom: 4px;
                width: 40%;
            }

            .nav-toggle {
                display: block;
            }

            .nav-actions .search-box {
                display: none;
            }

            .nav-actions .btn-cta-nav {
                font-size: 0.8rem;
                padding: 0.4rem 0.9rem;
            }
        }

        @media (max-width: 520px) {
            .nav-logo {
                font-size: 1.1rem;
            }
            .nav-logo i {
                font-size: 1.3rem;
            }
            .nav-actions .btn-cta-nav {
                font-size: 0.75rem;
                padding: 0.35rem 0.7rem;
            }
            .site-header {
                padding: 0.4rem 0;
            }
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            padding: 5rem 0 4rem;
            text-align: center;
            border-bottom: 1px solid var(--border-color);
            background: linear-gradient(180deg, rgba(26, 22, 20, 1) 0%, rgba(35, 30, 27, 1) 100%);
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: repeating-linear-gradient(45deg,
                    transparent,
                    transparent 40px,
                    rgba(218, 165, 32, 0.02) 40px,
                    rgba(218, 165, 32, 0.02) 80px);
            pointer-events: none;
        }

        .page-hero .container {
            position: relative;
            z-index: 1;
        }

        .page-hero h1 {
            font-size: 3.2rem;
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
            color: var(--text-strong);
        }

        .page-hero h1 i {
            color: var(--primary-light);
            margin-right: 0.5rem;
        }

        .page-hero .hero-sub {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto 1.5rem;
            line-height: 1.8;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(218, 165, 32, 0.12);
            border: 1px solid rgba(218, 165, 32, 0.25);
            color: var(--primary-light);
            padding: 0.3rem 1.2rem;
            border-radius: var(--radius-xl);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 1rem;
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 3.5rem 0 2.8rem;
            }
            .page-hero h1 {
                font-size: 2.2rem;
            }
            .page-hero .hero-sub {
                font-size: 1rem;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .page-hero .hero-sub {
                font-size: 0.9rem;
            }
        }

        /* ===== Section Shared ===== */
        .section-block {
            padding: var(--spacing-section) 0;
            border-bottom: 1px solid var(--border-color);
        }

        .section-block:last-of-type {
            border-bottom: none;
        }

        .section-title {
            font-size: 2.2rem;
            text-align: center;
            margin-bottom: 0.75rem;
            color: var(--text-strong);
        }

        .section-desc {
            text-align: center;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto var(--spacing-block);
            font-size: 1.05rem;
            line-height: 1.7;
        }

        .section-desc i {
            color: var(--primary-light);
        }

        @media (max-width: 768px) {
            .section-block {
                padding: 3rem 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .section-desc {
                font-size: 0.95rem;
                padding: 0 1rem;
            }
        }

        @media (max-width: 520px) {
            .section-title {
                font-size: 1.5rem;
            }
        }

        /* ===== Game Cards Grid ===== */
        .game-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.8rem;
        }

        .game-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .game-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-light);
        }

        .game-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
            background: var(--bg-surface);
            border-bottom: 1px solid var(--border-color);
        }

        .game-card .card-body {
            padding: 1.2rem 1.4rem 1.4rem;
        }

        .game-card .card-body h3 {
            font-size: 1.2rem;
            margin-bottom: 0.4rem;
            color: var(--text-strong);
        }

        .game-card .card-body p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0.8rem;
        }

        .game-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            margin-bottom: 0.9rem;
        }

        .game-card .card-tags span {
            background: rgba(218, 165, 32, 0.1);
            border: 1px solid rgba(218, 165, 32, 0.2);
            color: var(--primary-light);
            padding: 0.15rem 0.7rem;
            border-radius: var(--radius-xl);
            font-size: 0.78rem;
            font-weight: 500;
        }

        .game-card .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border-color);
            padding-top: 0.8rem;
            margin-top: 0.2rem;
        }

        .game-card .card-footer .rating {
            color: var(--primary-light);
            font-size: 0.9rem;
            letter-spacing: 0.05em;
        }

        .game-card .card-footer .rating i {
            margin-right: 0.2rem;
        }

        .game-card .card-footer .btn-detail {
            background: transparent;
            border: 1px solid var(--border-light);
            color: var(--text-muted);
            padding: 0.3rem 1rem;
            border-radius: var(--radius-sm);
            font-size: 0.82rem;
            transition: background var(--transition), color var(--transition), border-color var(--transition);
            font-weight: 600;
        }

        .game-card .card-footer .btn-detail:hover {
            background: var(--primary);
            color: #1a1614;
            border-color: var(--primary);
        }

        @media (max-width: 1024px) {
            .game-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .game-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .game-card .card-img {
                height: 180px;
            }
            .game-card .card-body {
                padding: 1rem 1.1rem 1.2rem;
            }
        }

        /* ===== Rank List ===== */
        .rank-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            padding: 1rem 1.2rem;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 0.75rem;
            transition: background var(--transition), border-color var(--transition), transform var(--transition);
        }

        .rank-item:hover {
            background: var(--bg-surface);
            border-color: var(--border-light);
            transform: translateX(4px);
        }

        .rank-number {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary-light);
            min-width: 2.4rem;
            text-align: center;
            font-family: var(--font-mono);
        }

        .rank-item .rank-info {
            flex: 1;
        }

        .rank-item .rank-info h4 {
            font-size: 1.05rem;
            margin-bottom: 0.15rem;
            color: var(--text-strong);
        }

        .rank-item .rank-info p {
            font-size: 0.85rem;
            color: var(--text-dim);
            margin: 0;
        }

        .rank-item .rank-score {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary-light);
            font-family: var(--font-mono);
        }

        @media (max-width: 520px) {
            .rank-item {
                flex-wrap: wrap;
                gap: 0.6rem;
                padding: 0.8rem 1rem;
            }
            .rank-number {
                font-size: 1.3rem;
                min-width: 1.8rem;
            }
            .rank-item .rank-info h4 {
                font-size: 0.95rem;
            }
            .rank-item .rank-score {
                font-size: 0.95rem;
            }
        }

        /* ===== Testimonials / Reviews ===== */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .review-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.6rem 1.4rem;
            transition: box-shadow var(--transition), transform var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .review-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .review-card .review-stars {
            color: var(--primary-light);
            font-size: 0.9rem;
            margin-bottom: 0.6rem;
            letter-spacing: 0.1em;
        }

        .review-card .review-text {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0.8rem;
            font-style: italic;
        }

        .review-card .review-author {
            font-size: 0.85rem;
            color: var(--text-dim);
            font-weight: 600;
            border-top: 1px solid var(--border-color);
            padding-top: 0.6rem;
        }

        .review-card .review-author i {
            color: var(--primary-light);
            margin-right: 0.3rem;
        }

        @media (max-width: 768px) {
            .review-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .review-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Tag Cloud ===== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.6rem;
            max-width: 700px;
            margin: 0 auto;
        }

        .tag-cloud a {
            display: inline-block;
            padding: 0.4rem 1.2rem;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
        }

        .tag-cloud a:hover {
            background: var(--primary);
            color: #1a1614;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .tag-cloud a i {
            margin-right: 0.3rem;
            font-size: 0.8rem;
        }

        @media (max-width: 520px) {
            .tag-cloud a {
                font-size: 0.8rem;
                padding: 0.3rem 1rem;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.2rem 1.5rem;
            margin-bottom: 0.75rem;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-sm);
        }

        .faq-item .faq-q {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 700;
            color: var(--text-strong);
            font-size: 1.02rem;
            gap: 1rem;
        }

        .faq-item .faq-q i {
            color: var(--primary-light);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }

        .faq-item .faq-a {
            margin-top: 0.8rem;
            color: var(--text-muted);
            font-size: 0.94rem;
            line-height: 1.7;
            display: none;
            border-top: 1px solid var(--border-color);
            padding-top: 0.8rem;
        }

        .faq-item.open .faq-a {
            display: block;
        }

        @media (max-width: 520px) {
            .faq-item {
                padding: 1rem 1.1rem;
            }
            .faq-item .faq-q {
                font-size: 0.95rem;
            }
        }

        /* ===== CTA ===== */
        .cta-block {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 3.5rem 2.5rem;
            text-align: center;
            box-shadow: var(--shadow-md);
            position: relative;
            overflow: hidden;
        }

        .cta-block::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(218, 165, 32, 0.04) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-block h3 {
            font-size: 2rem;
            margin-bottom: 0.8rem;
            color: var(--text-strong);
        }

        .cta-block p {
            color: var(--text-muted);
            max-width: 520px;
            margin: 0 auto 1.8rem;
            font-size: 1.02rem;
            line-height: 1.7;
        }

        .cta-block .cta-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #1a1614;
            padding: 0.75rem 2rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-family: var(--font-body);
        }

        .btn-primary:hover {
            background: var(--primary-light);
            color: #1a1614;
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(218, 165, 32, 0.25);
        }

        .btn-secondary {
            background: transparent;
            border: 1px solid var(--border-light);
            color: var(--text-muted);
            padding: 0.75rem 2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-family: var(--font-body);
        }

        .btn-secondary:hover {
            background: var(--bg-surface);
            color: var(--text-strong);
            border-color: var(--text-muted);
            transform: translateY(-2px);
        }

        @media (max-width: 520px) {
            .cta-block {
                padding: 2.2rem 1.5rem;
            }
            .cta-block h3 {
                font-size: 1.5rem;
            }
            .btn-primary,
            .btn-secondary {
                padding: 0.6rem 1.4rem;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            padding: 3.5rem 0 1.5rem;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 1.5rem;
        }

        .footer-brand .logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 0.8rem;
            font-family: var(--font-heading);
        }

        .footer-brand .logo i {
            color: var(--primary-light);
        }

        .footer-brand p {
            color: var(--text-dim);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 1rem;
            color: var(--text-strong);
            margin-bottom: 0.8rem;
            font-weight: 700;
        }

        .footer-col a {
            display: block;
            color: var(--text-dim);
            font-size: 0.88rem;
            padding: 0.25rem 0;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.8rem;
            font-size: 0.82rem;
            color: var(--text-dim);
        }

        .footer-bottom a {
            color: var(--text-dim);
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.8rem;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer {
                padding: 2.5rem 0 1rem;
            }
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            padding: 0.8rem 0 0;
            font-size: 0.88rem;
            color: var(--text-dim);
            display: flex;
            align-items: center;
            gap: 0.4rem;
            flex-wrap: wrap;
        }

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

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

        .breadcrumb span {
            color: var(--text-muted);
        }

        .breadcrumb i {
            font-size: 0.65rem;
            color: var(--text-dim);
        }

        /* ===== Utility ===== */
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .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;
        }

        /* ===== Decorative vintage accents ===== */
        .vintage-divider {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1rem;
            margin: 2rem 0;
            color: var(--text-dim);
            font-size: 0.85rem;
            letter-spacing: 0.12em;
        }

        .vintage-divider::before,
        .vintage-divider::after {
            content: '';
            flex: 1;
            max-width: 120px;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border-color), transparent);
        }

        .vintage-border {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 0.2rem;
            background: var(--bg-card);
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }

        ::-webkit-scrollbar-track {
            background: var(--bg-dark);
        }

        ::-webkit-scrollbar-thumb {
            background: var(--border-light);
            border-radius: 3px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-dim);
        }

/* roulang page: article */
:root {
            --clr-primary: #5c3d2e;
            --clr-primary-dark: #3d2b1f;
            --clr-secondary: #b85c4a;
            --clr-accent: #c4956a;
            --clr-bg: #f5efe8;
            --clr-bg-card: #ffffff;
            --clr-bg-dark: #2c1810;
            --clr-text: #2c1810;
            --clr-text-weak: #8a7a6a;
            --clr-border: #d4c5b0;
            --clr-white: #ffffff;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --space-xs: 0.5rem;
            --space-sm: 1rem;
            --space-md: 2rem;
            --space-lg: 3.5rem;
            --space-xl: 5rem;
            --font-body: 'Noto Serif SC', 'Georgia', 'Times New Roman', serif;
            --font-heading: 'Noto Serif SC', 'Georgia', serif;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --transition: 0.25s ease;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-body);
            background: var(--clr-bg);
            color: var(--clr-text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--clr-secondary); text-decoration: none; transition: color var(--transition); }
        a:hover, a:focus { color: var(--clr-primary); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        input, button, textarea { font-family: inherit; font-size: inherit; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 var(--space-sm); }
        .grid-container { max-width: 1200px; }

        /* 导航 (SaaS 命令栏风格) */
        .site-header {
            background: var(--clr-bg-dark);
            border-bottom: 2px solid var(--clr-accent);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 0 var(--space-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-family: var(--font-heading);
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--clr-accent);
            letter-spacing: 1px;
        }
        .logo i { font-size: 1.6rem; color: var(--clr-secondary); }
        .logo span { color: var(--clr-white); }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 2rem;
            margin-left: 2rem;
        }
        .nav-main a {
            color: rgba(255,255,255,0.7);
            font-family: var(--font-sans);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.4rem 0;
            border-bottom: 2px solid transparent;
            transition: all var(--transition);
            position: relative;
        }
        .nav-main a:hover,
        .nav-main a:focus-visible {
            color: var(--clr-white);
            border-bottom-color: var(--clr-accent);
        }
        .nav-main a.active {
            color: var(--clr-white);
            border-bottom-color: var(--clr-secondary);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            margin-left: auto;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: rgba(255,255,255,0.1);
            border: 1px solid rgba(255,255,255,0.15);
            border-radius: 30px;
            padding: 0.3rem 1rem;
            transition: all var(--transition);
        }
        .search-box:focus-within {
            background: rgba(255,255,255,0.18);
            border-color: var(--clr-accent);
            box-shadow: 0 0 0 3px rgba(196,149,106,0.25);
        }
        .search-box input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--clr-white);
            font-size: 0.9rem;
            padding: 0.3rem 0;
            width: 140px;
            font-family: var(--font-sans);
        }
        .search-box input::placeholder { color: rgba(255,255,255,0.4); }
        .search-box i { color: rgba(255,255,255,0.4); font-size: 0.9rem; margin-left: 0.4rem; }
        .btn-header {
            background: var(--clr-secondary);
            color: var(--clr-white);
            border: none;
            border-radius: 30px;
            padding: 0.5rem 1.4rem;
            font-family: var(--font-sans);
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
            letter-spacing: 0.3px;
        }
        .btn-header:hover {
            background: #a34e3e;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(184,92,74,0.4);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--clr-white);
            font-size: 1.4rem;
            cursor: pointer;
            padding: 0.3rem;
        }

        /* 移动端导航 */
        .mobile-nav {
            display: none;
            background: var(--clr-bg-dark);
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 0.8rem var(--space-sm);
            flex-direction: column;
            gap: 0.6rem;
        }
        .mobile-nav.open { display: flex; }
        .mobile-nav a {
            color: rgba(255,255,255,0.7);
            font-family: var(--font-sans);
            font-size: 1rem;
            padding: 0.5rem 0.8rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .mobile-nav a:hover { background: rgba(255,255,255,0.08); color: var(--clr-white); }
        .mobile-nav a.active { color: var(--clr-accent); background: rgba(196,149,106,0.12); }

        /* 文章 Hero */
        .article-hero {
            background: linear-gradient(135deg, var(--clr-bg-dark) 0%, #3d2b1f 100%);
            padding: var(--space-xl) 0 var(--space-lg);
            border-bottom: 3px solid var(--clr-accent);
            position: relative;
        }
        .article-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 6px;
            background: repeating-linear-gradient(90deg, var(--clr-accent) 0px, var(--clr-accent) 20px, transparent 20px, transparent 30px);
        }
        .article-hero .container { position: relative; z-index: 1; }
        .article-meta-top {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: var(--space-md);
            flex-wrap: wrap;
        }
        .category-badge {
            display: inline-block;
            background: var(--clr-secondary);
            color: var(--clr-white);
            font-family: var(--font-sans);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.3rem 1rem;
            border-radius: 30px;
            letter-spacing: 0.5px;
            border: 1px solid rgba(255,255,255,0.2);
        }
        .article-date {
            color: rgba(255,255,255,0.6);
            font-family: var(--font-sans);
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .article-date i { font-size: 0.8rem; }
        .article-hero h1 {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--clr-white);
            line-height: 1.25;
            max-width: 900px;
            margin-bottom: var(--space-sm);
            text-shadow: 0 2px 12px rgba(0,0,0,0.3);
        }
        .article-hero .article-byline {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            color: rgba(255,255,255,0.6);
            font-family: var(--font-sans);
            font-size: 0.9rem;
            flex-wrap: wrap;
        }
        .article-hero .article-byline i { margin-right: 0.3rem; color: var(--clr-accent); }

        /* 文章正文 */
        .article-body {
            padding: var(--space-xl) 0;
            background: var(--clr-bg);
        }
        .article-body article {
            max-width: 820px;
            margin: 0 auto;
            background: var(--clr-bg-card);
            padding: var(--space-lg) var(--space-md);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--clr-border);
            position: relative;
        }
        .article-body article::before {
            content: '';
            position: absolute;
            top: 0;
            left: 2rem;
            right: 2rem;
            height: 4px;
            background: linear-gradient(90deg, var(--clr-secondary), var(--clr-accent), var(--clr-secondary));
            border-radius: 0 0 4px 4px;
        }
        .article-body article p {
            font-size: 1.05rem;
            line-height: 1.9;
            margin-bottom: 1.4rem;
            color: var(--clr-text);
        }
        .article-body article h2 {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            margin: 2rem 0 1rem;
            color: var(--clr-primary);
            border-left: 4px solid var(--clr-secondary);
            padding-left: 1rem;
        }
        .article-body article h3 {
            font-family: var(--font-heading);
            font-size: 1.25rem;
            margin: 1.6rem 0 0.8rem;
            color: var(--clr-primary-dark);
        }
        .article-body article ul, .article-body article ol {
            margin: 1rem 0 1.4rem 1.8rem;
            line-height: 1.9;
        }
        .article-body article li { margin-bottom: 0.4rem; }
        .article-body article blockquote {
            border-left: 4px solid var(--clr-accent);
            background: rgba(196,149,106,0.08);
            padding: 1rem 1.6rem;
            margin: 1.6rem 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--clr-text-weak);
        }
        .article-body article img {
            border-radius: var(--radius-md);
            margin: 1.6rem auto;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--clr-border);
        }
        .article-body article pre {
            background: var(--clr-bg-dark);
            color: #e8dcc8;
            padding: 1.2rem 1.6rem;
            border-radius: var(--radius-md);
            overflow-x: auto;
            font-family: 'Fira Code', monospace;
            font-size: 0.9rem;
            margin: 1.6rem 0;
            border: 1px solid rgba(255,255,255,0.1);
        }
        .article-body article code {
            background: rgba(92,61,46,0.08);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-size: 0.9em;
            font-family: 'Fira Code', monospace;
        }

        /* 内容未找到 */
        .article-not-found {
            text-align: center;
            padding: var(--space-xl) var(--space-md);
            max-width: 600px;
            margin: 0 auto;
        }
        .article-not-found i {
            font-size: 3.5rem;
            color: var(--clr-accent);
            margin-bottom: var(--space-sm);
        }
        .article-not-found h2 {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            color: var(--clr-primary);
            margin-bottom: 0.6rem;
        }
        .article-not-found p {
            color: var(--clr-text-weak);
            margin-bottom: var(--space-md);
            font-size: 1.05rem;
        }
        .article-not-found .btn {
            display: inline-block;
            background: var(--clr-secondary);
            color: var(--clr-white);
            padding: 0.7rem 2rem;
            border-radius: 30px;
            font-family: var(--font-sans);
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
        }
        .article-not-found .btn:hover {
            background: #a34e3e;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(184,92,74,0.35);
        }

        /* 文章交互区 */
        .article-interaction {
            background: var(--clr-bg-card);
            border-top: 1px solid var(--clr-border);
            border-bottom: 1px solid var(--clr-border);
            padding: var(--space-md) 0;
        }
        .interaction-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: var(--space-sm);
            max-width: 820px;
            margin: 0 auto;
        }
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
        }
        .tag-item {
            display: inline-block;
            background: rgba(92,61,46,0.06);
            color: var(--clr-primary);
            font-family: var(--font-sans);
            font-size: 0.8rem;
            font-weight: 500;
            padding: 0.3rem 0.9rem;
            border-radius: 30px;
            border: 1px solid var(--clr-border);
            transition: all var(--transition);
        }
        .tag-item:hover {
            background: var(--clr-primary);
            color: var(--clr-white);
            border-color: var(--clr-primary);
        }
        .share-actions {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            font-family: var(--font-sans);
            font-size: 0.9rem;
            color: var(--clr-text-weak);
        }
        .share-actions a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(92,61,46,0.06);
            color: var(--clr-primary);
            border: 1px solid var(--clr-border);
            transition: all var(--transition);
            font-size: 1rem;
        }
        .share-actions a:hover {
            background: var(--clr-secondary);
            color: var(--clr-white);
            border-color: var(--clr-secondary);
            transform: translateY(-2px);
        }

        /* 相关推荐 */
        .related-section {
            padding: var(--space-xl) 0;
            background: var(--clr-bg);
        }
        .related-section h2 {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            color: var(--clr-primary);
            text-align: center;
            margin-bottom: var(--space-sm);
            position: relative;
        }
        .related-section h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 3px;
            background: var(--clr-secondary);
            margin: 0.6rem auto 0;
            border-radius: 2px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: var(--space-md);
            margin-top: var(--space-md);
        }
        .related-card {
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            padding: var(--space-md);
            border: 1px solid var(--clr-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--clr-accent);
        }
        .related-card .card-cat {
            font-family: var(--font-sans);
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--clr-secondary);
            letter-spacing: 0.5px;
            margin-bottom: 0.4rem;
        }
        .related-card h3 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--clr-primary);
            line-height: 1.4;
            margin-bottom: 0.5rem;
            flex: 1;
        }
        .related-card h3 a { color: inherit; }
        .related-card h3 a:hover { color: var(--clr-secondary); }
        .related-card .card-excerpt {
            color: var(--clr-text-weak);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: var(--space-sm);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-meta {
            font-family: var(--font-sans);
            font-size: 0.8rem;
            color: var(--clr-text-weak);
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid var(--clr-border);
            padding-top: 0.8rem;
            margin-top: auto;
        }
        .related-empty {
            text-align: center;
            color: var(--clr-text-weak);
            font-size: 0.95rem;
            padding: var(--space-md);
            grid-column: 1 / -1;
        }

        /* CTA 区块 */
        .cta-block {
            background: linear-gradient(135deg, var(--clr-bg-dark) 0%, #3d2b1f 100%);
            padding: var(--space-xl) 0;
            text-align: center;
            border-top: 3px solid var(--clr-accent);
            border-bottom: 3px solid var(--clr-accent);
            position: relative;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 6px;
            background: repeating-linear-gradient(90deg, var(--clr-accent) 0px, var(--clr-accent) 20px, transparent 20px, transparent 30px);
            transform: translateY(-3px);
        }
        .cta-block h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            color: var(--clr-white);
            margin-bottom: 0.6rem;
        }
        .cta-block p {
            color: rgba(255,255,255,0.7);
            font-size: 1.05rem;
            max-width: 500px;
            margin: 0 auto var(--space-md);
        }
        .cta-block .btn-cta {
            display: inline-block;
            background: var(--clr-secondary);
            color: var(--clr-white);
            padding: 0.8rem 2.4rem;
            border-radius: 30px;
            font-family: var(--font-sans);
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(184,92,74,0.3);
        }
        .cta-block .btn-cta:hover {
            background: #a34e3e;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(184,92,74,0.45);
        }

        /* 文章底部导航 */
        .article-bottom-nav {
            background: var(--clr-bg-card);
            padding: var(--space-md) 0;
            border-top: 1px solid var(--clr-border);
        }
        .bottom-nav-inner {
            display: flex;
            justify-content: center;
            gap: var(--space-md);
            flex-wrap: wrap;
            max-width: 820px;
            margin: 0 auto;
        }
        .bottom-nav-inner .btn-nav {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--clr-primary);
            padding: 0.6rem 1.6rem;
            border-radius: 30px;
            font-family: var(--font-sans);
            font-weight: 500;
            font-size: 0.9rem;
            border: 2px solid var(--clr-border);
            transition: all var(--transition);
        }
        .bottom-nav-inner .btn-nav:hover {
            background: var(--clr-primary);
            color: var(--clr-white);
            border-color: var(--clr-primary);
            transform: translateY(-2px);
        }
        .bottom-nav-inner .btn-nav i { font-size: 0.85rem; }

        /* 页脚 */
        .site-footer {
            background: var(--clr-bg-dark);
            color: rgba(255,255,255,0.7);
            padding: var(--space-xl) 0 var(--space-md);
            border-top: 3px solid var(--clr-accent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: var(--space-lg);
            margin-bottom: var(--space-lg);
        }
        .footer-brand .logo { margin-bottom: var(--space-sm); }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.55); max-width: 340px; }
        .footer-col h4 {
            color: var(--clr-white);
            font-family: var(--font-sans);
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: var(--space-sm);
            letter-spacing: 0.5px;
        }
        .footer-col a {
            display: block;
            color: rgba(255,255,255,0.55);
            font-size: 0.88rem;
            padding: 0.3rem 0;
            transition: all var(--transition);
            font-family: var(--font-sans);
        }
        .footer-col a:hover { color: var(--clr-accent); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: var(--space-md);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: var(--space-sm);
            font-size: 0.82rem;
            color: rgba(255,255,255,0.4);
            font-family: var(--font-sans);
        }
        .footer-bottom a { color: rgba(255,255,255,0.4); }
        .footer-bottom a:hover { color: var(--clr-accent); }

        /* 响应式 */
        @media (max-width: 1024px) {
            .nav-main { gap: 1.2rem; margin-left: 1.2rem; }
            .search-box input { width: 100px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-md); }
        }
        @media (max-width: 768px) {
            .nav-main, .nav-actions { display: none; }
            .nav-toggle { display: block; }
            .header-inner { height: 60px; }
            .logo { font-size: 1.2rem; }
            .article-hero h1 { font-size: 1.8rem; }
            .article-hero { padding: var(--space-lg) 0 var(--space-md); }
            .article-body article { padding: var(--space-md) var(--space-sm); }
            .article-body article p { font-size: 1rem; }
            .interaction-inner { flex-direction: column; align-items: flex-start; }
            .related-grid { grid-template-columns: 1fr; }
            .cta-block h2 { font-size: 1.5rem; }
            .footer-grid { grid-template-columns: 1fr; gap: var(--space-md); }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .article-hero h1 { font-size: 1.4rem; }
            .article-body article { padding: var(--space-sm); }
            .container { padding: 0 0.8rem; }
            .bottom-nav-inner { flex-direction: column; align-items: center; }
        }

        /* 可访问性 */
        :focus-visible {
            outline: 2px solid var(--clr-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .skip-link {
            position: absolute;
            top: -100%;
            left: 1rem;
            background: var(--clr-secondary);
            color: var(--clr-white);
            padding: 0.5rem 1rem;
            border-radius: 0 0 8px 8px;
            z-index: 200;
            font-family: var(--font-sans);
        }
        .skip-link:focus { top: 0; }