/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0b0f1a;
            --primary-light: #151e2f;
            --accent: #e63946;
            --accent-hover: #c52d39;
            --accent-glow: rgba(230, 57, 70, 0.25);
            --gold: #f0b429;
            --gold-light: #f7d674;
            --text-main: #f1f3f8;
            --text-secondary: #9aa3b8;
            --text-muted: #6b7490;
            --bg-dark: #080b14;
            --bg-card: #111827;
            --bg-card-hover: #1a2335;
            --border-color: #1e2a3f;
            --border-light: #2a3a55;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 40px rgba(230, 57, 70, 0.10);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --nav-height: 72px;
            --container-max: 1200px;
            --container-pad: 24px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text-main);
            background: var(--bg-dark);
            min-height: 100vh;
        }
        a {
            color: var(--gold);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--gold-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-pad);
        }
        .container-wide {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 var(--container-pad);
        }
        .container-narrow {
            max-width: 860px;
            margin: 0 auto;
            padding: 0 var(--container-pad);
        }

        /* ===== 玻璃导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(8, 11, 20, 0.55);
            backdrop-filter: blur(18px) saturate(1.6);
            -webkit-backdrop-filter: blur(18px) saturate(1.6);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: background var(--transition), box-shadow var(--transition);
        }
        .site-header.scrolled {
            background: rgba(8, 11, 20, 0.88);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-pad);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.3px;
            flex-shrink: 0;
        }
        .logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--accent);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            font-family: var(--font-mono);
        }
        .logo span {
            background: linear-gradient(135deg, var(--gold), var(--gold-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
            letter-spacing: 0.2px;
        }
        .main-nav a:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.06);
        }
        .main-nav a.active {
            color: var(--text-main);
            background: rgba(230, 57, 70, 0.15);
            box-shadow: inset 0 -2px 0 var(--accent);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 22px;
            border-radius: var(--radius-sm);
            background: var(--accent);
            color: #fff !important;
            font-weight: 600;
            font-size: 14px;
            transition: all var(--transition);
            margin-left: 12px;
        }
        .nav-cta:hover {
            background: var(--accent-hover);
            box-shadow: 0 0 30px var(--accent-glow);
            transform: translateY(-1px);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 6px;
            background: transparent;
            border: none;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 140px 0 100px;
            overflow: hidden;
            background: var(--bg-dark);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.55;
            z-index: 0;
            will-change: transform;
        }
        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(8, 11, 20, 0.30) 0%, rgba(8, 11, 20, 0.85) 70%, var(--bg-dark) 100%);
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 40%, rgba(230, 57, 70, 0.07) 0%, transparent 70%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 820px;
            padding: 0 24px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: 100px;
            background: rgba(230, 57, 70, 0.12);
            border: 1px solid rgba(230, 57, 70, 0.25);
            font-size: 13px;
            font-weight: 500;
            color: var(--accent);
            letter-spacing: 0.5px;
            margin-bottom: 28px;
            backdrop-filter: blur(6px);
        }
        .hero-badge i {
            font-size: 12px;
        }
        .hero-title {
            font-size: clamp(40px, 8vw, 72px);
            font-weight: 800;
            line-height: 1.08;
            letter-spacing: -1.5px;
            background: linear-gradient(135deg, #ffffff 20%, var(--gold-light) 80%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 20px;
        }
        .hero-sub {
            font-size: clamp(17px, 2.2vw, 22px);
            color: var(--text-secondary);
            line-height: 1.6;
            max-width: 660px;
            margin: 0 auto 36px;
            font-weight: 400;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            align-items: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            font-size: 16px;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            box-shadow: 0 0 40px var(--accent-glow);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-main);
            font-weight: 600;
            font-size: 16px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            cursor: pointer;
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.10);
            border-color: var(--border-light);
            transform: translateY(-2px);
            color: var(--text-main);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px 60px;
            justify-content: center;
            margin-top: 56px;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .hero-stat-item {
            text-align: center;
        }
        .hero-stat-number {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .hero-stat-number .accent {
            color: var(--accent);
        }
        .hero-stat-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-dark {
            background: var(--primary);
        }
        .section-darker {
            background: var(--bg-dark);
        }
        .section-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 60px 48px;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1.2px;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .section-title {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.8px;
            color: var(--text-main);
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.7;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-desc {
            margin: 0 auto;
        }

        /* ===== 卡片网格 ===== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        /* ===== 卡片 ===== */
        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }
        .card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-card);
            transform: translateY(-4px);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
            background: var(--primary-light);
        }
        .card-body {
            padding: 22px 24px 26px;
        }
        .card-tag {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 100px;
            background: rgba(230, 57, 70, 0.12);
            color: var(--accent);
            font-size: 11px;
            font-weight: 600;
            letter-spacing: 0.4px;
            margin-bottom: 10px;
        }
        .card-title {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-main);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .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-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 14px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .card-meta i {
            margin-right: 4px;
            font-size: 12px;
        }
        .card-link {
            color: var(--gold);
            font-weight: 500;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            transition: all var(--transition);
        }
        .card-link:hover {
            color: var(--gold-light);
            gap: 10px;
        }

        /* ===== 特色图文区块 ===== */
        .feature-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .feature-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--primary-light);
            aspect-ratio: 4 / 3;
            object-fit: cover;
            width: 100%;
            border: 1px solid var(--border-color);
        }
        .feature-content .section-label {
            margin-bottom: 10px;
        }
        .feature-content .section-title {
            margin-bottom: 20px;
        }
        .feature-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 24px;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.5;
        }
        .feature-list li i {
            color: var(--accent);
            font-size: 14px;
            margin-top: 4px;
            flex-shrink: 0;
        }

        /* ===== 分类入口 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            cursor: pointer;
            min-height: 200px;
            display: flex;
            align-items: flex-end;
        }
        .category-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-card);
            transform: translateY(-3px);
        }
        .category-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.35;
            transition: opacity var(--transition), transform var(--transition);
        }
        .category-card:hover img {
            opacity: 0.50;
            transform: scale(1.04);
        }
        .category-overlay {
            position: relative;
            z-index: 1;
            padding: 28px 24px;
            width: 100%;
            background: linear-gradient(0deg, rgba(8, 11, 20, 0.92) 40%, transparent 100%);
        }
        .category-overlay h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .category-overlay p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.5;
        }
        .category-overlay .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            padding: 6px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            color: var(--text-main);
            font-size: 13px;
            font-weight: 500;
            transition: all var(--transition);
        }
        .category-overlay .btn-outline:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--gold);
            color: var(--gold);
        }

        /* ===== 资讯列表（CMS） ===== */
        .post-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .post-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 18px 22px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .post-item:hover {
            border-color: var(--border-light);
            background: var(--bg-card-hover);
            box-shadow: var(--shadow-card);
        }
        .post-item .post-thumb {
            width: 80px;
            height: 80px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--primary-light);
        }
        .post-item .post-info {
            flex: 1;
            min-width: 0;
        }
        .post-item .post-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-item .post-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-item .post-foot {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 10px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .post-item .post-foot .cat {
            color: var(--accent);
            font-weight: 500;
        }
        .empty-msg {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-muted);
            font-size: 15px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px dashed var(--border-color);
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .stat-card {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            transition: all var(--transition);
        }
        .stat-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }
        .stat-icon {
            font-size: 32px;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .stat-number {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-main);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        .faq-question i {
            color: var(--text-muted);
            transition: transform var(--transition);
            font-size: 14px;
            flex-shrink: 0;
            margin-left: 12px;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }
        .cta-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(8, 11, 20, 0.92), rgba(11, 15, 26, 0.96));
        }
        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .cta-content .section-title {
            color: #fff;
        }
        .cta-content .section-desc {
            color: var(--text-secondary);
            margin: 0 auto 32px;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--gold);
        }
        .footer-bottom {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-muted);
            font-size: 15px;
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .feature-block {
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --container-pad: 16px;
                --nav-height: 64px;
            }
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                flex-direction: column;
                background: rgba(8, 11, 20, 0.97);
                backdrop-filter: blur(20px);
                padding: 20px 24px 28px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-110%);
                opacity: 0;
                transition: all 0.35s ease;
                pointer-events: none;
                gap: 6px;
                box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .main-nav a {
                padding: 12px 16px;
                font-size: 16px;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav-cta {
                margin-left: 0;
                justify-content: center;
                margin-top: 8px;
                width: 100%;
            }
            .hero {
                padding: 120px 0 80px;
                min-height: auto;
            }
            .hero-title {
                font-size: clamp(32px, 10vw, 48px);
            }
            .hero-stats {
                gap: 20px 36px;
                margin-top: 36px;
                padding-top: 28px;
            }
            .hero-stat-number {
                font-size: 26px;
            }
            .section {
                padding: 56px 0;
            }
            .grid-3,
            .grid-2 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .grid-4 {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-card {
                padding: 24px 16px;
            }
            .stat-number {
                font-size: 28px;
            }
            .feature-block {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .feature-image {
                aspect-ratio: 16 / 10;
            }
            .section-card {
                padding: 32px 20px;
            }
            .post-item {
                flex-direction: column;
                gap: 14px;
                padding: 16px;
            }
            .post-item .post-thumb {
                width: 100%;
                height: 180px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .category-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 28px;
            }
            .hero-sub {
                font-size: 15px;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .cta-actions .btn-primary,
            .cta-actions .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .section-title {
                font-size: 24px;
            }
            .post-item .post-thumb {
                height: 140px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-answer {
                font-size: 14px;
            }
        }

        /* ===== 实用工具 ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mt-40 {
            margin-top: 40px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }

        /* ===== 滚动条 ===== */
        ::-webkit-scrollbar {
            width: 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-muted);
        }

        /* ===== 选中 ===== */
        ::selection {
            background: var(--accent);
            color: #fff;
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e60012;
            --primary-dark: #b8000a;
            --primary-light: #ff4d4d;
            --accent: #ff8c00;
            --accent-dark: #e67e00;
            --bg-dark: #0b0f1a;
            --bg-card: #141a2b;
            --bg-card-hover: #1c2340;
            --bg-section: #0f1422;
            --bg-light: #f5f7fc;
            --text-light: #f0f2f8;
            --text-muted: #8a94b0;
            --text-dark: #1a1f2e;
            --border-color: rgba(230, 0, 18, 0.25);
            --border-light: rgba(255, 255, 255, 0.08);
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 12px 40px rgba(230, 0, 18, 0.25);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1200px;
            --header-h: 72px;
        }

        /* ===== 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-sans);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text-light);
            background: var(--bg-dark);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        a:hover,
        a:focus-visible {
            color: var(--primary-light);
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            transition: var(--transition);
        }

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

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

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

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

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(11, 15, 26, 0.75);
            backdrop-filter: blur(16px) saturate(1.4);
            -webkit-backdrop-filter: blur(16px) saturate(1.4);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }

        .site-header.scrolled {
            background: rgba(11, 15, 26, 0.92);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.6);
        }

        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--text-light);
            letter-spacing: -0.5px;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .logo:hover {
            color: var(--primary);
            transform: scale(1.02);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 900;
            font-size: 1rem;
            letter-spacing: 0;
            box-shadow: 0 2px 12px rgba(230, 0, 18, 0.4);
        }

        .logo span:last-child {
            font-weight: 700;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .main-nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-muted);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.06);
        }

        .main-nav a.active {
            color: var(--primary);
            background: rgba(230, 0, 18, 0.12);
            font-weight: 600;
        }

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

        .main-nav a.nav-cta {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            padding: 8px 22px;
            border-radius: var(--radius-sm);
            box-shadow: 0 2px 12px rgba(230, 0, 18, 0.3);
        }

        .main-nav a.nav-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(230, 0, 18, 0.4);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 6px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }

        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-light);
            border-radius: 4px;
            transition: var(--transition);
        }

        .nav-toggle:hover span {
            background: var(--primary);
        }

        /* ===== Mobile Nav ===== */
        @media (max-width: 820px) {
            .main-nav {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(11, 15, 26, 0.97);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px 30px;
                gap: 6px;
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-bottom: 1px solid var(--border-light);
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            }

            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }

            .main-nav a {
                padding: 14px 18px;
                font-size: 1.05rem;
                width: 100%;
                text-align: center;
                border-radius: var(--radius-sm);
            }

            .main-nav a.active::after {
                display: none;
            }

            .main-nav a.nav-cta {
                margin-top: 8px;
                text-align: center;
            }

            .nav-toggle {
                display: flex;
            }
        }

        /* ===== Page Banner (Hero interno) ===== */
        .page-banner {
            padding-top: calc(var(--header-h) + 40px);
            padding-bottom: 60px;
            position: relative;
            background: var(--bg-dark);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 15, 26, 0.88) 0%, rgba(11, 15, 26, 0.6) 60%, rgba(230, 0, 18, 0.15) 100%);
            z-index: 1;
        }

        .banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .banner-content h1 {
            font-size: 3rem;
            font-weight: 900;
            letter-spacing: -1px;
            line-height: 1.2;
            margin-bottom: 16px;
            color: #fff;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
        }

        .banner-content h1 span {
            color: var(--primary);
        }

        .banner-content p {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(230, 0, 18, 0.15);
            border: 1px solid rgba(230, 0, 18, 0.3);
            padding: 6px 20px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary-light);
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }

        .banner-badge i {
            font-size: 0.75rem;
        }

        @media (max-width: 768px) {
            .page-banner {
                min-height: 240px;
                padding-top: calc(var(--header-h) + 24px);
                padding-bottom: 40px;
            }

            .banner-content h1 {
                font-size: 2rem;
            }

            .banner-content p {
                font-size: 1rem;
            }
        }

        @media (max-width: 520px) {
            .banner-content h1 {
                font-size: 1.6rem;
            }

            .banner-badge {
                font-size: 0.75rem;
                padding: 4px 14px;
            }
        }

        /* ===== Sections ===== */
        .section {
            padding: 72px 0;
        }

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

        .section-card {
            background: var(--bg-card);
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fff;
            margin-bottom: 12px;
        }

        .section-header h2 span {
            color: var(--primary);
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .section-header .badge-group {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }

        .badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(230, 0, 18, 0.1);
            border: 1px solid rgba(230, 0, 18, 0.2);
            padding: 4px 16px;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--primary-light);
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }

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

            .section-header h2 {
                font-size: 1.6rem;
            }

            .section-header p {
                font-size: 0.95rem;
            }
        }

        /* ===== Card Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .card-grid.grid-2 {
            grid-template-columns: repeat(2, 1fr);
        }

        .card-grid.grid-4 {
            grid-template-columns: repeat(4, 1fr);
        }

        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .card-grid.grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .card-grid,
            .card-grid.grid-2,
            .card-grid.grid-4 {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ===== Card ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
        }

        .card:hover {
            transform: translateY(-6px);
            border-color: rgba(230, 0, 18, 0.3);
            box-shadow: var(--shadow-hover);
            background: var(--bg-card-hover);
        }

        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .card:hover .card-img {
            transform: scale(1.02);
        }

        .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-body .card-tag {
            display: inline-block;
            background: rgba(230, 0, 18, 0.12);
            color: var(--primary-light);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 40px;
            margin-bottom: 10px;
            align-self: flex-start;
            letter-spacing: 0.3px;
            border: 1px solid rgba(230, 0, 18, 0.15);
        }

        .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.4;
            transition: var(--transition);
        }

        .card:hover .card-body h3 {
            color: var(--primary-light);
        }

        .card-body p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 14px;
            flex: 1;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.82rem;
            color: var(--text-muted);
            padding-top: 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }

        .card-meta span i {
            margin-right: 4px;
        }

        .card-meta a {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.85rem;
        }

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

        /* ===== Featured Card (large) ===== */
        .card-featured {
            display: grid;
            grid-template-columns: 1fr 1fr;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .card-featured:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(230, 0, 18, 0.25);
        }

        .card-featured .card-img {
            aspect-ratio: auto;
            height: 100%;
            min-height: 300px;
            object-fit: cover;
            border-bottom: none;
            border-right: 1px solid var(--border-light);
        }

        .card-featured .card-body {
            padding: 32px 36px;
        }

        .card-featured .card-body h3 {
            font-size: 1.6rem;
            margin-bottom: 14px;
        }

        .card-featured .card-body p {
            font-size: 1rem;
            margin-bottom: 20px;
        }

        @media (max-width: 820px) {
            .card-featured {
                grid-template-columns: 1fr;
            }

            .card-featured .card-img {
                min-height: 200px;
                border-right: none;
                border-bottom: 1px solid var(--border-light);
            }

            .card-featured .card-body {
                padding: 24px 20px;
            }

            .card-featured .card-body h3 {
                font-size: 1.3rem;
            }
        }

        /* ===== List Group ===== */
        .list-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .list-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            cursor: default;
        }

        .list-item:hover {
            background: var(--bg-card-hover);
            border-color: rgba(230, 0, 18, 0.2);
            transform: translateX(4px);
        }

        .list-item .rank {
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(230, 0, 18, 0.1);
            border-radius: 50%;
            font-weight: 800;
            font-size: 0.85rem;
            color: var(--primary);
            flex-shrink: 0;
        }

        .list-item .rank.gold {
            background: var(--primary);
            color: #fff;
        }

        .list-item .content {
            flex: 1;
        }

        .list-item .content h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 2px;
        }

        .list-item .content span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .list-item .badge {
            background: rgba(230, 0, 18, 0.1);
            color: var(--primary-light);
            font-size: 0.7rem;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 40px;
            border: 1px solid rgba(230, 0, 18, 0.15);
            flex-shrink: 0;
        }

        /* ===== Stats / Data ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            padding: 28px 20px;
            text-align: center;
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-4px);
            border-color: rgba(230, 0, 18, 0.25);
            box-shadow: var(--shadow-hover);
        }

        .stat-card .stat-number {
            font-size: 2.6rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -1px;
        }

        .stat-card .stat-label {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-top: 6px;
            font-weight: 500;
        }

        @media (max-width: 820px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .stat-card .stat-number {
                font-size: 2rem;
            }
        }

        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .stat-card {
                padding: 20px 12px;
            }

            .stat-card .stat-number {
                font-size: 1.6rem;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(230, 0, 18, 0.2);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 22px;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            text-align: left;
            transition: var(--transition);
        }

        .faq-question:hover {
            color: var(--primary-light);
        }

        .faq-question i {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 22px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 22px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-card) 0%, #0f1422 100%);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            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: 0.08;
            z-index: 0;
        }

        .cta-section>* {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            letter-spacing: 0.3px;
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(230, 0, 18, 0.3);
        }

        .btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230, 0, 18, 0.4);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: var(--text-light);
            border: 2px solid rgba(255, 255, 255, 0.2);
            box-shadow: none;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--primary);
            color: var(--primary-light);
            box-shadow: none;
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 0.85rem;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 36px 24px;
            }

            .cta-section h2 {
                font-size: 1.5rem;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }

            .btn {
                width: 100%;
                max-width: 280px;
                justify-content: center;
            }
        }

        /* ===== Filter / Tabs ===== */
        .filter-bar {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            justify-content: center;
            margin-bottom: 36px;
        }

        .filter-btn {
            padding: 8px 22px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 500;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-muted);
            cursor: pointer;
            transition: var(--transition);
        }

        .filter-btn:hover {
            border-color: rgba(230, 0, 18, 0.3);
            color: var(--text-light);
            background: rgba(230, 0, 18, 0.05);
        }

        .filter-btn.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 12px rgba(230, 0, 18, 0.3);
        }

        /* ===== Footer (shared) ===== */
        .site-footer {
            background: #080b14;
            border-top: 1px solid var(--border-light);
            padding: 56px 0 28px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand .logo {
            margin-bottom: 14px;
            font-size: 1.2rem;
        }

        .footer-brand p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.88rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .footer-col ul li a:hover {
            color: var(--primary-light);
            transform: translateX(4px);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .footer-social {
            display: flex;
            gap: 14px;
        }

        .footer-social a {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-muted);
            font-size: 1rem;
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(230, 0, 18, 0.3);
        }

        @media (max-width: 820px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }

            .footer-brand p {
                max-width: 100%;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

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

        /* ===== Utilities ===== */
        .text-center {
            text-align: center;
        }

        .mt-24 {
            margin-top: 24px;
        }
        .mt-36 {
            margin-top: 36px;
        }
        .mt-48 {
            margin-top: 48px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .mb-36 {
            margin-bottom: 36px;
        }

        .gap-16 {
            gap: 16px;
        }

        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .divider {
            width: 60px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
            margin: 16px auto;
        }

        /* ===== Responsive fine-tune ===== */
        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                padding: 0 16px;
            }

            .logo {
                font-size: 1.1rem;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.85rem;
            }
        }

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

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

        ::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 10px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary-dark);
        }

        /* ===== Animation ===== */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-in {
            animation: fadeUp 0.6s ease forwards;
        }

        .delay-1 {
            animation-delay: 0.1s;
        }
        .delay-2 {
            animation-delay: 0.2s;
        }
        .delay-3 {
            animation-delay: 0.3s;
        }
        .delay-4 {
            animation-delay: 0.4s;
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --clr-primary: #E83131;
            --clr-primary-dark: #C41E1E;
            --clr-primary-light: #FF4D4D;
            --clr-accent: #FF6B35;
            --clr-accent-dark: #E55A2B;
            --clr-bg: #0A0E17;
            --clr-bg-alt: #0F1623;
            --clr-bg-card: #131B2A;
            --clr-bg-card-hover: #1A2438;
            --clr-bg-nav: rgba(10, 14, 23, 0.85);
            --clr-text: #F0F2F5;
            --clr-text-muted: #8E9AAB;
            --clr-text-dim: #5E6B7E;
            --clr-border: rgba(232, 49, 49, 0.15);
            --clr-border-light: rgba(255, 255, 255, 0.06);
            --clr-success: #2ECC71;
            --clr-warning: #F39C12;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 30px rgba(232, 49, 49, 0.15);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --nav-height: 70px;
        }

        /* ===== 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-sans);
            background: var(--clr-bg);
            color: var(--clr-text);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }
        a {
            color: var(--clr-primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--clr-accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: 1rem;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: #fff;
        }

        /* ===== Container ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 玻璃导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: var(--clr-bg-nav);
            backdrop-filter: blur(18px) saturate(1.2);
            -webkit-backdrop-filter: blur(18px) saturate(1.2);
            border-bottom: 1px solid var(--clr-border);
            transition: background var(--transition), border-color var(--transition);
        }
        .site-header.scrolled {
            background: rgba(10, 14, 23, 0.96);
            border-bottom-color: var(--clr-primary);
        }
        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: -0.5px;
            transition: opacity var(--transition);
        }
        .logo:hover {
            opacity: 0.85;
            color: #fff;
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 900;
            color: #fff;
            letter-spacing: -0.5px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--clr-text-muted);
            transition: all var(--transition);
            position: relative;
            letter-spacing: 0.3px;
        }
        .main-nav a:hover {
            color: #fff;
            background: rgba(232, 49, 49, 0.08);
        }
        .main-nav a.active {
            color: #fff;
            background: rgba(232, 49, 49, 0.15);
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--clr-primary);
            border-radius: 2px;
        }
        .main-nav a.nav-cta {
            background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-dark));
            color: #fff;
            padding: 8px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
            box-shadow: 0 4px 16px rgba(232, 49, 49, 0.3);
        }
        .main-nav a.nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 24px rgba(232, 49, 49, 0.45);
            background: linear-gradient(135deg, var(--clr-primary-light), var(--clr-primary));
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: #fff;
            border-radius: 2px;
            transition: all var(--transition);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        @media (max-width: 768px) {
            .main-nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(10, 14, 23, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 6px;
                transform: translateY(-120%);
                opacity: 0;
                transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
                border-bottom: 1px solid var(--clr-border);
                pointer-events: none;
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .main-nav a {
                width: 100%;
                padding: 14px 18px;
                font-size: 1rem;
                border-radius: var(--radius-sm);
            }
            .main-nav a.nav-cta {
                justify-content: center;
                margin-top: 8px;
            }
            .nav-toggle {
                display: flex;
            }
        }

        /* ===== 页面头部 ===== */
        .page-header {
            padding-top: calc(var(--nav-height) + 40px);
            padding-bottom: 40px;
            background: linear-gradient(135deg, var(--clr-bg) 0%, var(--clr-bg-alt) 100%);
            border-bottom: 1px solid var(--clr-border-light);
            position: relative;
            overflow: hidden;
        }
        .page-header::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 40%, rgba(232, 49, 49, 0.06), transparent 70%);
            pointer-events: none;
        }
        .page-header .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.85rem;
            color: var(--clr-text-dim);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--clr-text-muted);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--clr-primary-light);
        }
        .breadcrumb span {
            color: var(--clr-text-dim);
        }
        .breadcrumb .sep {
            color: var(--clr-text-dim);
            font-size: 0.7rem;
        }
        .article-meta-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px 24px;
            margin-top: 12px;
        }
        .article-meta-header .category-badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 14px;
            background: rgba(232, 49, 49, 0.15);
            color: var(--clr-primary-light);
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            border: 1px solid rgba(232, 49, 49, 0.2);
        }
        .article-meta-header .date {
            color: var(--clr-text-dim);
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta-header .date i {
            font-size: 0.75rem;
        }
        .page-header h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -1px;
            max-width: 900px;
            margin-top: 8px;
            background: linear-gradient(135deg, #fff 60%, var(--clr-primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        @media (max-width: 768px) {
            .page-header h1 {
                font-size: 1.8rem;
            }
            .page-header {
                padding-top: calc(var(--nav-height) + 24px);
                padding-bottom: 28px;
            }
        }
        @media (max-width: 520px) {
            .page-header h1 {
                font-size: 1.4rem;
            }
            .article-meta-header {
                gap: 10px;
            }
        }

        /* ===== 文章主体 ===== */
        .article-main {
            padding: 48px 0 64px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 48px;
            align-items: start;
        }
        .article-content {
            background: var(--clr-bg-card);
            border-radius: var(--radius-lg);
            padding: 40px;
            border: 1px solid var(--clr-border-light);
            box-shadow: var(--shadow-md);
        }
        .article-content .post-body {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--clr-text);
        }
        .article-content .post-body p {
            margin-bottom: 1.5em;
        }
        .article-content .post-body h2 {
            font-size: 1.6rem;
            margin-top: 2em;
            margin-bottom: 0.8em;
            color: #fff;
            font-weight: 700;
        }
        .article-content .post-body h3 {
            font-size: 1.25rem;
            margin-top: 1.8em;
            margin-bottom: 0.6em;
            color: #fff;
            font-weight: 600;
        }
        .article-content .post-body ul,
        .article-content .post-body ol {
            margin-bottom: 1.5em;
            padding-left: 1.8em;
        }
        .article-content .post-body li {
            margin-bottom: 0.5em;
            list-style: disc;
        }
        .article-content .post-body ol li {
            list-style: decimal;
        }
        .article-content .post-body blockquote {
            border-left: 4px solid var(--clr-primary);
            padding: 16px 24px;
            margin: 1.5em 0;
            background: rgba(232, 49, 49, 0.05);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--clr-text-muted);
            font-style: italic;
        }
        .article-content .post-body img {
            margin: 2em 0;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
        }
        .article-content .post-body a {
            color: var(--clr-primary-light);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-content .post-body a:hover {
            color: var(--clr-accent);
        }
        .article-content .post-body .wp-block-table {
            overflow-x: auto;
            margin: 1.5em 0;
        }
        .article-content .post-body table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        .article-content .post-body th,
        .article-content .post-body td {
            padding: 12px 16px;
            border: 1px solid var(--clr-border-light);
            text-align: left;
        }
        .article-content .post-body th {
            background: rgba(232, 49, 49, 0.1);
            color: #fff;
            font-weight: 600;
        }
        .article-content .post-body td {
            color: var(--clr-text-muted);
        }

        /* 文章未找到 */
        .article-not-found {
            text-align: center;
            padding: 60px 20px;
        }
        .article-not-found .not-found-icon {
            font-size: 4rem;
            color: var(--clr-text-dim);
            margin-bottom: 20px;
        }
        .article-not-found h2 {
            font-size: 1.8rem;
            margin-bottom: 12px;
        }
        .article-not-found p {
            color: var(--clr-text-muted);
            margin-bottom: 24px;
            font-size: 1.05rem;
        }
        .article-not-found .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: var(--clr-primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            transition: all var(--transition);
        }
        .article-not-found .btn-back:hover {
            background: var(--clr-primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            color: #fff;
        }

        /* ===== 侧边栏 ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .sidebar-card {
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--clr-border-light);
            box-shadow: var(--shadow-sm);
            transition: border-color var(--transition);
        }
        .sidebar-card:hover {
            border-color: var(--clr-border);
        }
        .sidebar-card h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--clr-border-light);
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
        }
        .sidebar-card h3 i {
            color: var(--clr-primary);
        }
        .sidebar-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .sidebar-list li a {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.03);
            transition: all var(--transition);
        }
        .sidebar-list li a:hover {
            padding-left: 6px;
        }
        .sidebar-list li a .thumb {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--clr-bg-alt);
        }
        .sidebar-list li a .info {
            flex: 1;
            min-width: 0;
        }
        .sidebar-list li a .info .s-title {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--clr-text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.4;
            transition: color var(--transition);
        }
        .sidebar-list li a:hover .info .s-title {
            color: var(--clr-primary-light);
        }
        .sidebar-list li a .info .s-date {
            font-size: 0.75rem;
            color: var(--clr-text-dim);
            margin-top: 4px;
            display: block;
        }

        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .article-sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 640px) {
            .article-content {
                padding: 20px;
            }
            .article-sidebar {
                grid-template-columns: 1fr;
            }
            .article-content .post-body {
                font-size: 0.98rem;
            }
        }

        /* ===== 标签分享 ===== */
        .article-tags-share {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--clr-border-light);
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-tags .tag {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--clr-border-light);
            border-radius: 20px;
            font-size: 0.78rem;
            color: var(--clr-text-muted);
            transition: all var(--transition);
        }
        .article-tags .tag:hover {
            background: rgba(232, 49, 49, 0.1);
            border-color: var(--clr-primary);
            color: var(--clr-primary-light);
        }
        .share-buttons {
            display: flex;
            gap: 10px;
        }
        .share-buttons a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            color: var(--clr-text-muted);
            font-size: 1rem;
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .share-buttons a:hover {
            background: var(--clr-primary);
            color: #fff;
            border-color: var(--clr-primary);
            transform: translateY(-2px);
        }

        /* ===== 推荐文章 ===== */
        .related-section {
            padding: 48px 0;
            background: var(--clr-bg-alt);
        }
        .related-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 32px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-section .section-title i {
            color: var(--clr-primary);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--clr-border-light);
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .related-card:hover {
            transform: translateY(-4px);
            border-color: var(--clr-border);
            box-shadow: var(--shadow-lg);
        }
        .related-card .rc-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: var(--clr-bg-alt);
            border-radius: 0;
        }
        .related-card .rc-body {
            padding: 20px;
        }
        .related-card .rc-body .rc-cat {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--clr-primary-light);
            background: rgba(232, 49, 49, 0.1);
            padding: 2px 12px;
            border-radius: 12px;
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }
        .related-card .rc-body .rc-title {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition);
        }
        .related-card:hover .rc-body .rc-title {
            color: var(--clr-primary-light);
        }
        .related-card .rc-body .rc-date {
            font-size: 0.78rem;
            color: var(--clr-text-dim);
            margin-top: 8px;
            display: block;
        }

        @media (max-width: 900px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 560px) {
            .related-grid {
                grid-template-columns: 1fr;
            }
            .related-card .rc-img {
                height: 160px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 64px 0;
            background: linear-gradient(135deg, var(--clr-bg) 0%, var(--clr-bg-alt) 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 50%, rgba(232, 49, 49, 0.08), transparent 60%);
            pointer-events: none;
        }
        .cta-box {
            position: relative;
            z-index: 1;
            max-width: 720px;
            margin: 0 auto;
            text-align: center;
            padding: 48px 40px;
            background: var(--clr-bg-card);
            border-radius: var(--radius-xl);
            border: 1px solid var(--clr-border);
            box-shadow: var(--shadow-lg);
        }
        .cta-box h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #fff 60%, var(--clr-primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .cta-box p {
            color: var(--clr-text-muted);
            font-size: 1.05rem;
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-box .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-dark));
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            box-shadow: 0 4px 20px rgba(232, 49, 49, 0.3);
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(232, 49, 49, 0.45);
            color: #fff;
            background: linear-gradient(135deg, var(--clr-primary-light), var(--clr-primary));
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: transparent;
            color: var(--clr-text);
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            border: 1px solid var(--clr-border);
            transition: all var(--transition);
            cursor: pointer;
        }
        .btn-secondary:hover {
            border-color: var(--clr-primary);
            color: var(--clr-primary-light);
            background: rgba(232, 49, 49, 0.05);
            transform: translateY(-2px);
        }

        @media (max-width: 640px) {
            .cta-box {
                padding: 32px 20px;
            }
            .cta-box h2 {
                font-size: 1.4rem;
            }
            .cta-box .btn-group {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 56px 0;
            background: var(--clr-bg);
        }
        .faq-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 32px;
            display: flex;
            align-items: center;
            gap: 12px;
            justify-content: center;
            text-align: center;
        }
        .faq-section .section-title i {
            color: var(--clr-primary);
        }
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--clr-border-light);
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item:hover {
            border-color: var(--clr-border);
        }
        .faq-item summary {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: #fff;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 12px;
            user-select: none;
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::before {
            content: '\f059';
            font-family: 'Font Awesome 6 Free';
            font-weight: 400;
            color: var(--clr-primary);
            font-size: 1rem;
            flex-shrink: 0;
        }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            margin-left: auto;
            font-size: 0.8rem;
            color: var(--clr-text-dim);
            transition: transform var(--transition);
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 18px 48px;
            color: var(--clr-text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        @media (max-width: 640px) {
            .faq-item summary {
                padding: 14px 16px;
                font-size: 0.92rem;
            }
            .faq-item .faq-answer {
                padding: 0 16px 14px 40px;
                font-size: 0.88rem;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--clr-bg-alt);
            border-top: 1px solid var(--clr-border-light);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            font-size: 1.2rem;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.88rem;
            color: var(--clr-text-muted);
            line-height: 1.7;
            max-width: 280px;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            font-size: 0.85rem;
            color: var(--clr-text-muted);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .footer-col ul li a:hover {
            color: var(--clr-primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid var(--clr-border-light);
            font-size: 0.82rem;
            color: var(--clr-text-dim);
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            color: var(--clr-text-muted);
            font-size: 1rem;
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .footer-social a:hover {
            background: var(--clr-primary);
            color: #fff;
            border-color: var(--clr-primary);
            transform: translateY(-2px);
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 通用 ===== */
        .section-subtitle {
            text-align: center;
            color: var(--clr-text-muted);
            font-size: 1rem;
            margin-top: -20px;
            margin-bottom: 36px;
        }
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .hidden {
            display: none !important;
        }
        .pulse-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            background: var(--clr-primary);
            border-radius: 50%;
            animation: pulse 1.8s ease-in-out infinite;
        }
        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.4);
            }
        }

        /* ===== 滚动条 ===== */
        ::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--clr-bg);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--clr-text-dim);
            border-radius: 3px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--clr-text-muted);
        }

        /* ===== 选中 ===== */
        ::selection {
            background: rgba(232, 49, 49, 0.35);
            color: #fff;
        }