/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f1a2e;
            --primary-light: #1a2a4a;
            --primary-dark: #080f1a;
            --secondary: #d4a847;
            --secondary-light: #e4b85e;
            --secondary-dark: #b88d2e;
            --accent: #f0c040;
            --bg: #f5f6f8;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0f1a2e;
            --text: #1a2a3a;
            --text-light: #6b7a8f;
            --text-muted: #9aabbb;
            --text-white: #ffffff;
            --border: #e2e6ea;
            --border-light: #f0f2f5;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow: 0 4px 24px rgba(15, 26, 46, 0.08);
            --shadow-hover: 0 12px 40px rgba(15, 26, 46, 0.14);
            --shadow-lg: 0 20px 60px rgba(15, 26, 46, 0.16);
            --transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-height: 76px;
        }

        /* ===== 基础重置 ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--primary);
        }
        ::selection {
            background: var(--secondary);
            color: var(--primary-dark);
        }

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

        /* ===== 头部与导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 26, 46, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(212, 168, 71, 0.15);
            height: var(--header-height);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: var(--primary-dark);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            font-size: 26px;
            font-weight: 800;
            letter-spacing: 1px;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary);
            font-size: 28px;
        }
        .logo span {
            background: linear-gradient(135deg, var(--secondary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav a {
            color: rgba(255, 255, 255, 0.75);
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        .main-nav a:hover {
            color: var(--text-white);
            background: rgba(212, 168, 71, 0.12);
        }
        .main-nav a.active {
            color: var(--text-white);
            background: rgba(212, 168, 71, 0.18);
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--secondary);
        }
        .nav-cta {
            background: linear-gradient(135deg, var(--secondary), var(--accent)) !important;
            color: var(--primary-dark) !important;
            font-weight: 700 !important;
            padding: 10px 28px !important;
            border-radius: 30px !important;
            box-shadow: 0 4px 16px rgba(212, 168, 71, 0.3);
            transition: var(--transition) !important;
        }
        .nav-cta:hover {
            transform: translateY(-2px) !important;
            box-shadow: 0 8px 28px rgba(212, 168, 71, 0.45) !important;
            background: linear-gradient(135deg, var(--secondary-light), var(--accent)) !important;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 26px;
            padding: 4px 8px;
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            color: var(--secondary);
        }
        @media (max-width: 868px) {
            .main-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(8, 15, 26, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px 30px;
                gap: 6px;
                border-bottom: 2px solid rgba(212, 168, 71, 0.2);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.4s ease;
                border-radius: 0 0 20px 20px;
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .main-nav a {
                padding: 12px 20px;
                width: 100%;
                text-align: center;
                font-size: 16px;
            }
            .main-nav a.active::after {
                display: none;
            }
            .main-nav a.active {
                background: rgba(212, 168, 71, 0.15);
            }
            .nav-cta {
                margin-top: 8px;
                width: auto;
                padding: 12px 36px !important;
                text-align: center;
            }
            .nav-toggle {
                display: block;
            }
        }

        /* ===== 首屏 Hero ===== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, #1a2a4a 100%);
            overflow: hidden;
            padding: 120px 24px 80px;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.18;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(212, 168, 71, 0.06) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(15, 26, 46, 0.4) 0%, transparent 50%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 860px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(212, 168, 71, 0.12);
            border: 1px solid rgba(212, 168, 71, 0.2);
            color: var(--secondary-light);
            padding: 6px 20px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 24px;
            backdrop-filter: blur(6px);
        }
        .hero-badge i {
            font-size: 12px;
        }
        .hero-title {
            font-size: clamp(40px, 7vw, 72px);
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.1;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero-title .highlight {
            background: linear-gradient(135deg, var(--secondary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-sub {
            font-size: clamp(17px, 2.2vw, 22px);
            color: rgba(255, 255, 255, 0.7);
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.6;
            font-weight: 400;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--secondary), var(--accent));
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 17px;
            padding: 16px 40px;
            border-radius: 40px;
            box-shadow: 0 8px 30px rgba(212, 168, 71, 0.35);
            transition: var(--transition);
            border: none;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(212, 168, 71, 0.5);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-white);
            font-weight: 600;
            font-size: 17px;
            padding: 16px 36px;
            border-radius: 40px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(6px);
            transition: var(--transition);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            justify-content: center;
            margin-top: 56px;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .hero-stat-item {
            text-align: center;
        }
        .hero-stat-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: 1px;
        }
        .hero-stat-num span {
            color: var(--secondary);
        }
        .hero-stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .hero {
                padding: 100px 16px 60px;
                min-height: 90vh;
            }
            .hero-stats {
                gap: 24px;
                padding-top: 28px;
                margin-top: 36px;
            }
            .hero-stat-num {
                font-size: 26px;
            }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-dark {
            background: var(--primary);
            color: var(--text-white);
        }
        .section-dark h2,
        .section-dark h3 {
            color: var(--text-white);
        }
        .section-light {
            background: var(--bg-white);
        }
        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 52px;
        }
        .section-header h2 {
            font-size: clamp(30px, 4vw, 42px);
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-header p {
            font-size: 17px;
            color: var(--text-light);
            line-height: 1.7;
        }
        .section-header .subtitle {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--secondary);
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-header .subtitle i {
            font-size: 12px;
        }
        .section-dark .section-header p {
            color: rgba(255, 255, 255, 0.6);
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-header {
                margin-bottom: 36px;
            }
        }

        /* ===== 优势卡片 ===== */
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .advantage-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 36px 28px 32px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            text-align: center;
        }
        .advantage-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(212, 168, 71, 0.2);
        }
        .advantage-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(212, 168, 71, 0.12), rgba(212, 168, 71, 0.05));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 28px;
            color: var(--secondary);
            transition: var(--transition);
        }
        .advantage-card:hover .advantage-icon {
            background: linear-gradient(135deg, var(--secondary), var(--accent));
            color: var(--primary-dark);
            transform: scale(1.05);
        }
        .advantage-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--primary);
        }
        .advantage-card p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.6;
        }
        @media (max-width: 1024px) {
            .advantage-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 560px) {
            .advantage-grid {
                grid-template-columns: 1fr;
            }
            .advantage-card {
                padding: 28px 20px 24px;
            }
        }

        /* ===== 分类入口 ===== */
        .category-section {
            background: var(--bg-white);
        }
        .category-card {
            display: flex;
            align-items: center;
            gap: 40px;
            background: var(--bg);
            border-radius: var(--radius);
            padding: 48px 52px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            overflow: hidden;
            position: relative;
        }
        .category-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--secondary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }
        .category-card:hover::before {
            opacity: 1;
        }
        .category-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .category-info {
            flex: 1;
        }
        .category-info .tag {
            display: inline-block;
            background: rgba(212, 168, 71, 0.12);
            color: var(--secondary-dark);
            font-weight: 600;
            font-size: 13px;
            padding: 4px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .category-info h3 {
            font-size: 26px;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--primary);
        }
        .category-info p {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.7;
            max-width: 520px;
        }
        .category-info .btn-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--secondary-dark);
            font-weight: 600;
            margin-top: 18px;
            font-size: 15px;
            transition: var(--transition);
        }
        .category-info .btn-link:hover {
            gap: 14px;
            color: var(--secondary);
        }
        .category-image {
            flex-shrink: 0;
            width: 200px;
            height: 160px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--border-light);
        }
        .category-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        @media (max-width: 768px) {
            .category-card {
                flex-direction: column;
                padding: 32px 24px;
                gap: 20px;
                text-align: center;
            }
            .category-info p {
                max-width: 100%;
            }
            .category-image {
                width: 100%;
                height: 180px;
                order: -1;
            }
            .category-info h3 {
                font-size: 22px;
            }
        }

        /* ===== 最新资讯 (CMS列表) ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }
        .news-thumb {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
            flex-shrink: 0;
        }
        .news-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .news-meta .cat {
            background: rgba(212, 168, 71, 0.1);
            color: var(--secondary-dark);
            padding: 2px 12px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 12px;
        }
        .news-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--primary);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-body .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--secondary-dark);
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition);
        }
        .news-body .read-more:hover {
            gap: 12px;
            color: var(--secondary);
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            color: var(--text-light);
            font-size: 16px;
        }
        .news-empty i {
            font-size: 48px;
            color: var(--border);
            margin-bottom: 16px;
        }
        @media (max-width: 1024px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 620px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
            .news-thumb {
                height: 180px;
            }
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            text-align: center;
            padding: 40px 20px 36px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }
        .stat-card:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
        }
        .stat-number {
            font-size: 44px;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.6);
            font-weight: 400;
        }
        .stat-icon {
            font-size: 32px;
            color: rgba(212, 168, 71, 0.3);
            margin-bottom: 16px;
        }
        @media (max-width: 868px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-number {
                font-size: 34px;
            }
        }
        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stat-card {
                padding: 28px 16px 24px;
            }
        }

        /* ===== 流程指南 ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step;
        }
        .process-step {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 24px 28px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            position: relative;
            transition: var(--transition);
            counter-increment: step;
        }
        .process-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .process-step::before {
            content: counter(step);
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 48px;
            font-weight: 900;
            color: rgba(212, 168, 71, 0.08);
            line-height: 1;
            font-family: var(--font);
        }
        .process-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 24px;
            color: var(--secondary);
        }
        .process-step h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--primary);
        }
        .process-step p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
        }
        .process-connector {
            display: none;
        }
        @media (max-width: 1024px) {
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 560px) {
            .process-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .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(212, 168, 71, 0.15);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            background: none;
            text-align: left;
            transition: var(--transition);
            gap: 16px;
        }
        .faq-question:hover {
            color: var(--secondary-dark);
        }
        .faq-question i {
            font-size: 14px;
            color: var(--secondary);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        @media (max-width: 768px) {
            .faq-question {
                padding: 16px 18px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 18px;
                font-size: 14px;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.06;
        }
        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 80px 24px;
        }
        .cta-inner h2 {
            font-size: clamp(32px, 4.5vw, 48px);
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .cta-inner p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.65);
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-inner .btn-primary {
            font-size: 18px;
            padding: 18px 52px;
        }
        @media (max-width: 768px) {
            .cta-inner {
                padding: 56px 16px;
            }
            .cta-inner h2 {
                font-size: 28px;
            }
            .cta-inner p {
                font-size: 16px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.6);
            padding: 60px 24px 32px;
            border-top: 1px solid rgba(212, 168, 71, 0.06);
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
        }
        .footer-brand .logo {
            font-size: 22px;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.45);
            max-width: 300px;
            line-height: 1.7;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .footer-bottom {
            max-width: var(--max-width);
            margin: 40px auto 0;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a:hover {
            color: var(--secondary);
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.4);
            font-size: 15px;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--secondary);
            color: var(--primary-dark);
        }
        @media (max-width: 868px) {
            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }
        @media (max-width: 560px) {
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer {
                padding: 40px 16px 24px;
            }
        }

        /* ===== 回到顶部 ===== */
        .back-top {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--secondary);
            color: var(--primary-dark);
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 20px rgba(212, 168, 71, 0.3);
            opacity: 0;
            transform: translateY(20px);
            pointer-events: none;
            transition: var(--transition);
            z-index: 999;
        }
        .back-top.visible {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
        .back-top:hover {
            background: var(--secondary-light);
            transform: translateY(-4px);
            box-shadow: 0 8px 30px rgba(212, 168, 71, 0.45);
        }
        @media (max-width: 560px) {
            .back-top {
                bottom: 20px;
                right: 20px;
                width: 42px;
                height: 42px;
                font-size: 16px;
            }
        }

        /* ===== 辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a1a2e;
            --primary-light: #16213e;
            --primary-dark: #0f0f1a;
            --accent: #f5a623;
            --accent-light: #ffc04d;
            --accent-dark: #d4891a;
            --accent-gradient: linear-gradient(135deg, #f5a623, #ff7e5f);
            --bg: #f8f9fc;
            --bg-alt: #ffffff;
            --bg-dark: #1a1a2e;
            --text: #2d2d3f;
            --text-light: #6b6b80;
            --text-white: #ffffff;
            --text-muted: #9a9ab0;
            --border: #e8e8f0;
            --border-light: #f0f0f5;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.1);
            --shadow-glow: 0 0 30px rgba(245, 166, 35, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            --container: 1200px;
            --header-h: 76px;
        }

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

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

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

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text);
        }
        h1 {
            font-size: clamp(2rem, 4.5vw, 3.2rem);
        }
        h2 {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
        }
        h3 {
            font-size: clamp(1.2rem, 2vw, 1.6rem);
        }
        h4 {
            font-size: 1.1rem;
        }
        p {
            margin-bottom: 1rem;
            color: var(--text-light);
        }
        p:last-child {
            margin-bottom: 0;
        }

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

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(26, 26, 46, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            height: var(--header-h);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(26, 26, 46, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            max-width: var(--container);
            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;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: 0.5px;
            transition: var(--transition);
        }
        .logo i {
            color: var(--accent);
            font-size: 1.6rem;
        }
        .logo:hover {
            color: var(--accent);
            transform: scale(1.02);
        }
        .logo span {
            background: var(--accent-gradient);
            -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: 0.95rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.75);
            transition: var(--transition);
            position: relative;
            letter-spacing: 0.3px;
        }
        .main-nav a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.08);
        }
        .main-nav a.active {
            color: var(--text-white);
            background: rgba(245, 166, 35, 0.15);
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }
        .main-nav a.nav-cta {
            background: var(--accent-gradient);
            color: #fff;
            font-weight: 600;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 15px rgba(245, 166, 35, 0.3);
            margin-left: 8px;
        }
        .main-nav a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(245, 166, 35, 0.4);
            background: linear-gradient(135deg, #ffb84d, #ff7e5f);
        }
        .main-nav a.nav-cta i {
            margin-right: 6px;
        }

        .nav-toggle {
            display: none;
            color: var(--text-white);
            font-size: 1.5rem;
            padding: 8px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.15);
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(26, 26, 46, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 24px 24px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                gap: 4px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                padding: 14px 18px;
                font-size: 1rem;
                border-radius: 10px;
            }
            .main-nav a.nav-cta {
                margin-left: 0;
                margin-top: 8px;
                text-align: center;
            }
            .main-nav a.active::after {
                display: none;
            }
            .main-nav a.active {
                background: rgba(245, 166, 35, 0.2);
                border-left: 3px solid var(--accent);
            }
            .nav-toggle {
                display: block;
            }
        }

        /* ===== Page Banner ===== */
        .page-banner {
            padding: 140px 0 80px;
            background: var(--bg-dark);
            position: relative;
            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;
            mix-blend-mode: overlay;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 46, 0.92), rgba(22, 33, 62, 0.85));
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            color: var(--text-white);
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .page-banner h1 i {
            color: var(--accent);
            margin-right: 12px;
        }
        .page-banner .breadcrumb {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }
        .page-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
        }
        .page-banner .breadcrumb a:hover {
            color: var(--accent);
        }
        .page-banner .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.3);
        }
        .page-banner .breadcrumb .current {
            color: var(--accent);
        }
        .page-banner p {
            color: rgba(255, 255, 255, 0.8);
            max-width: 680px;
            margin: 0 auto;
            font-size: 1.1rem;
        }
        @media (max-width: 768px) {
            .page-banner {
                padding: 110px 0 60px;
                min-height: 240px;
            }
            .page-banner p {
                font-size: 1rem;
            }
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-dark h2,
        .section-dark h3 {
            color: var(--text-white);
        }
        .section-dark p {
            color: rgba(255, 255, 255, 0.75);
        }
        .section-title {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-title h2 {
            margin-bottom: 12px;
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--accent-gradient);
            border-radius: 4px;
            margin: 12px auto 0;
        }
        .section-title p {
            max-width: 560px;
            margin: 0 auto;
            font-size: 1.05rem;
        }
        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-title {
                margin-bottom: 40px;
            }
        }

        /* ===== Card Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .card-grid-2 {
            grid-template-columns: repeat(2, 1fr);
        }
        .card-grid-4 {
            grid-template-columns: repeat(4, 1fr);
        }
        @media (max-width: 1024px) {
            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .card-grid-2 {
                grid-template-columns: 1fr;
            }
            .card-grid-4 {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Card ===== */
        .card {
            background: var(--bg-alt);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .card .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
            transition: var(--transition);
        }
        .card:hover .card-img {
            transform: scale(1.03);
        }
        .card .card-body {
            padding: 24px;
        }
        .card .card-body h3 {
            margin-bottom: 8px;
            font-size: 1.2rem;
        }
        .card .card-body h3 a {
            color: var(--text);
        }
        .card .card-body h3 a:hover {
            color: var(--accent);
        }
        .card .card-body p {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-bottom: 12px;
        }
        .card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 12px;
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
        }
        .card .card-meta i {
            margin-right: 4px;
        }
        .card .card-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(245, 166, 35, 0.12);
            color: var(--accent-dark);
            margin-bottom: 12px;
        }
        .card-dark {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.1);
        }
        .card-dark .card-body h3 {
            color: var(--text-white);
        }
        .card-dark .card-body p {
            color: rgba(255, 255, 255, 0.7);
        }
        .card-dark .card-meta {
            color: rgba(255, 255, 255, 0.5);
            border-top-color: rgba(255, 255, 255, 0.1);
        }
        .card-dark .card-tag {
            background: rgba(245, 166, 35, 0.2);
            color: var(--accent-light);
        }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            background: rgba(245, 166, 35, 0.12);
            color: var(--accent-dark);
        }
        .badge i {
            font-size: 0.9rem;
        }
        .badge-primary {
            background: var(--accent-gradient);
            color: #fff;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-accent {
            background: var(--accent-gradient);
            color: #fff;
            box-shadow: 0 4px 15px rgba(245, 166, 35, 0.3);
        }
        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(245, 166, 35, 0.4);
            color: #fff;
        }
        .btn-outline {
            border: 2px solid var(--accent);
            color: var(--accent);
            background: transparent;
        }
        .btn-outline:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-white {
            background: var(--text-white);
            color: var(--primary);
        }
        .btn-white:hover {
            background: var(--accent-light);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
        }

        /* ===== Stats Block ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 32px 16px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }
        .stat-item .stat-num {
            font-size: 2.6rem;
            font-weight: 800;
            background: var(--accent-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 8px;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item .stat-num {
                font-size: 2rem;
            }
        }
        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-alt);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--accent);
        }
        .faq-item .faq-q {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            gap: 12px;
        }
        .faq-item .faq-q i {
            color: var(--accent);
            transition: var(--transition);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }
        .faq-item .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-a {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-item .faq-a p {
            margin-bottom: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
            padding: 80px 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.1;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            color: var(--text-white);
            font-size: clamp(1.8rem, 3.5vw, 2.8rem);
            margin-bottom: 16px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 32px;
            font-size: 1.1rem;
        }
        .cta-section .btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== Process / Steps ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .process-step {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-alt);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
        }
        .process-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .process-step .step-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--accent-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.6rem;
            color: #fff;
            box-shadow: 0 8px 25px rgba(245, 166, 35, 0.25);
        }
        .process-step h4 {
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 0.9rem;
            margin-bottom: 0;
        }
        .process-step .step-num {
            position: absolute;
            top: -10px;
            right: -10px;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 0.85rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 2px solid var(--bg);
        }
        @media (max-width: 768px) {
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 480px) {
            .process-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Content List ===== */
        .content-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .content-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 20px 24px;
            background: var(--bg-alt);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .content-item:hover {
            border-color: var(--accent);
            transform: translateX(4px);
            box-shadow: var(--shadow);
        }
        .content-item .item-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(245, 166, 35, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--accent);
            flex-shrink: 0;
        }
        .content-item .item-body h4 {
            font-size: 1.05rem;
            margin-bottom: 4px;
        }
        .content-item .item-body p {
            font-size: 0.9rem;
            margin-bottom: 0;
            color: var(--text-muted);
        }
        .content-item .item-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 6px;
        }
        @media (max-width: 768px) {
            .content-item {
                padding: 16px 18px;
                gap: 14px;
            }
        }

        /* ===== Sidebar / Filter Tags ===== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 40px;
        }
        .tag-cloud a {
            padding: 8px 20px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            color: var(--text-light);
            transition: var(--transition);
        }
        .tag-cloud a:hover,
        .tag-cloud a.active {
            background: var(--accent-gradient);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 15px rgba(245, 166, 35, 0.25);
            transform: translateY(-2px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-inner {
            max-width: var(--container);
            margin: 0 auto;
            padding: 56px 24px 40px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
        }
        .footer-brand .logo {
            font-size: 1.4rem;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 8px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.6);
            padding: 0;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--accent-gradient);
            color: #fff;
            transform: translateY(-3px);
            padding-left: 0;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 20px 24px;
            max-width: var(--container);
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        @media (max-width: 768px) {
            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 32px 24px;
                padding: 40px 16px 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                padding: 16px;
            }
        }
        @media (max-width: 480px) {
            .footer-inner {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Utility ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-40 {
            margin-top: 40px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .gap-8 {
            gap: 8px;
        }
        .gap-12 {
            gap: 12px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }

        /* ===== Section: Guide Categories ===== */
        .guide-category {
            background: var(--bg-alt);
            border-radius: var(--radius);
            padding: 28px 32px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            margin-bottom: 24px;
        }
        .guide-category:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }
        .guide-category .cat-header {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 16px;
        }
        .guide-category .cat-header .cat-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(245, 166, 35, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent);
            flex-shrink: 0;
        }
        .guide-category .cat-header h3 {
            font-size: 1.2rem;
            margin-bottom: 2px;
        }
        .guide-category .cat-header .cat-count {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .guide-category .cat-body p {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-bottom: 12px;
        }
        .guide-category .cat-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .guide-category .cat-tags a {
            padding: 4px 14px;
            border-radius: 16px;
            font-size: 0.8rem;
            font-weight: 500;
            background: rgba(245, 166, 35, 0.08);
            color: var(--accent-dark);
            border: 1px solid rgba(245, 166, 35, 0.15);
            transition: var(--transition);
        }
        .guide-category .cat-tags a:hover {
            background: var(--accent-gradient);
            color: #fff;
            border-color: transparent;
        }

        /* ===== Responsive extras ===== */
        @media (max-width: 1024px) {
            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .header-inner {
                padding: 0 16px;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .page-banner .breadcrumb {
                font-size: 0.8rem;
                flex-wrap: wrap;
            }
            .tag-cloud a {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
            .guide-category {
                padding: 20px;
            }
            .guide-category .cat-header {
                flex-wrap: wrap;
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 0.95rem;
            }
            .content-item {
                flex-direction: column;
                gap: 10px;
            }
            .content-item .item-icon {
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
        }

        /* ===== Focus accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Smooth image loading ===== */
        .card-img,
        .banner-img {
            background: var(--border-light);
        }

        /* ===== Filter bar ===== */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            padding: 16px 0 32px;
            justify-content: center;
        }
        .filter-bar .filter-label {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text);
        }
        .filter-bar select {
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            background: var(--bg-alt);
            font-size: 0.9rem;
            color: var(--text);
            cursor: pointer;
            min-width: 160px;
        }
        .filter-bar select:focus {
            border-color: var(--accent);
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e8a020;
            --primary-dark: #c4881a;
            --primary-light: #f5c542;
            --secondary: #1e2a4a;
            --secondary-light: #2a3a5c;
            --accent: #f0f4f8;
            --bg-body: #f8fafc;
            --bg-white: #ffffff;
            --bg-dark: #0f1724;
            --text-primary: #1a1a2e;
            --text-secondary: #4a5568;
            --text-weak: #8899aa;
            --text-white: #f0f4f8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.10);
            --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.05);
            --transition: cubic-bezier(0.25, 0.1, 0.25, 1);
            --font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --max-width: 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);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
        }
        a { color: var(--primary); text-decoration: none; transition: color 0.25s var(--transition); }
        a:hover { color: var(--primary-dark); }
        a:focus-visible { outline: 3px solid var(--primary-light); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-md); }
        button, input, textarea { font-family: var(--font); font-size: 1rem; }
        button { cursor: pointer; border: none; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            z-index: 1000;
            transition: box-shadow 0.3s var(--transition);
        }
        .site-header.scrolled { box-shadow: var(--shadow-md); }
        .header-inner {
            max-width: var(--max-width);
            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;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--secondary);
        }
        .logo i { color: var(--primary); font-size: 1.6rem; }
        .logo span { background: linear-gradient(135deg, var(--secondary), var(--primary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .logo:hover span { -webkit-text-fill-color: var(--primary); }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav a {
            position: relative;
            padding: 8px 18px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all 0.25s var(--transition);
            font-size: 0.95rem;
        }
        .main-nav a:hover { color: var(--primary); background: rgba(232, 160, 32, 0.06); }
        .main-nav a.active { color: var(--primary); font-weight: 600; }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .main-nav a.nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 10px 24px;
            border-radius: 40px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
            box-shadow: 0 4px 12px rgba(232, 160, 32, 0.30);
        }
        .main-nav a.nav-cta:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 6px 18px rgba(232, 160, 32, 0.40); color: #fff; }
        .nav-toggle { display: none; font-size: 1.6rem; color: var(--secondary); padding: 4px; }

        /* ===== Article Breadcrumb ===== */
        .article-breadcrumb {
            padding-top: calc(var(--header-h) + 28px);
            padding-bottom: 16px;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
        }
        .breadcrumb-list {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-weak);
            flex-wrap: wrap;
        }
        .breadcrumb-list a { color: var(--text-weak); }
        .breadcrumb-list a:hover { color: var(--primary); }
        .breadcrumb-list .sep { color: var(--border); font-weight: 300; }

        /* ===== Article Header ===== */
        .article-header {
            background: var(--bg-white);
            padding: 40px 0 32px;
        }
        .article-header .container {
            max-width: 880px;
            margin: 0 auto;
        }
        .article-category {
            display: inline-block;
            padding: 4px 16px;
            background: rgba(232, 160, 32, 0.10);
            color: var(--primary-dark);
            font-weight: 600;
            font-size: 0.85rem;
            border-radius: 40px;
            margin-bottom: 16px;
        }
        .article-title {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 18px;
            color: var(--secondary);
            letter-spacing: -0.01em;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            color: var(--text-weak);
            font-size: 0.9rem;
            flex-wrap: wrap;
        }
        .article-meta i { margin-right: 6px; color: var(--primary); }
        .article-meta span { display: flex; align-items: center; }

        /* ===== Article Featured Image ===== */
        .article-image-wrap {
            background: var(--bg-white);
            padding-bottom: 32px;
        }
        .article-image-wrap .container {
            max-width: 960px;
            margin: 0 auto;
        }
        .article-image-wrap img {
            width: 100%;
            max-height: 520px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
        }

        /* ===== Article Content ===== */
        .article-content-wrap {
            background: var(--bg-white);
            padding: 40px 0 48px;
        }
        .article-content-wrap .container {
            max-width: 820px;
            margin: 0 auto;
        }
        .article-body {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-primary);
        }
        .article-body h2, .article-body h3 {
            margin-top: 36px;
            margin-bottom: 16px;
            color: var(--secondary);
        }
        .article-body h2 { font-size: 1.7rem; border-bottom: 2px solid var(--border-light); padding-bottom: 10px; }
        .article-body h3 { font-size: 1.3rem; }
        .article-body p { margin-bottom: 18px; }
        .article-body ul, .article-body ol { margin-bottom: 18px; padding-left: 24px; }
        .article-body li { margin-bottom: 8px; list-style: disc; }
        .article-body a { color: var(--primary); font-weight: 500; text-decoration: underline; text-underline-offset: 3px; }
        .article-body a:hover { color: var(--primary-dark); }
        .article-body img { margin: 24px 0; border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            margin: 24px 0;
            background: rgba(232, 160, 32, 0.04);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body code {
            background: var(--accent);
            padding: 2px 10px;
            border-radius: 4px;
            font-size: 0.9em;
            font-family: 'SF Mono', 'Fira Code', monospace;
        }

        /* ===== Article Tags ===== */
        .article-tags {
            background: var(--bg-white);
            padding: 8px 0 32px;
            border-top: 1px solid var(--border-light);
        }
        .article-tags .container {
            max-width: 820px;
            margin: 0 auto;
        }
        .tags-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
        }
        .tags-list .label { font-weight: 600; color: var(--text-secondary); font-size: 0.9rem; }
        .tag-item {
            padding: 6px 16px;
            background: var(--accent);
            border-radius: 40px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: all 0.2s var(--transition);
        }
        .tag-item:hover { background: var(--primary); color: #fff; }

        /* ===== Article Pagination ===== */
        .article-pagination {
            background: var(--bg-body);
            padding: 40px 0;
            border-top: 1px solid var(--border);
        }
        .article-pagination .container {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .pagination-link {
            flex: 1;
            min-width: 200px;
            padding: 18px 24px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all 0.25s var(--transition);
            border: 1px solid var(--border-light);
        }
        .pagination-link:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); border-color: var(--primary-light); }
        .pagination-link .dir { font-size: 0.8rem; color: var(--text-weak); text-transform: uppercase; letter-spacing: 1px; }
        .pagination-link .title { font-weight: 600; color: var(--text-primary); margin-top: 4px; display: block; }
        .pagination-link.next { text-align: right; }

        /* ===== Related Articles ===== */
        .related-articles {
            background: var(--bg-white);
            padding: 56px 0;
        }
        .related-articles .container { max-width: var(--max-width); margin: 0 auto; }
        .section-title {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 32px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .section-title i { color: var(--primary); font-size: 1.6rem; }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 24px;
        }
        .related-card {
            background: var(--bg-body);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.3s var(--transition);
            border: 1px solid var(--border-light);
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .related-card img { width: 100%; height: 180px; object-fit: cover; border-radius: 0; }
        .related-card .card-body { padding: 18px 20px 22px; }
        .related-card .card-body h4 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; color: var(--secondary); }
        .related-card .card-body p { font-size: 0.9rem; color: var(--text-weak); line-height: 1.6; }
        .related-card .card-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 14px; font-size: 0.8rem; color: var(--text-weak); }
        .related-card .card-meta .cat { padding: 2px 12px; background: rgba(232, 160, 32, 0.08); color: var(--primary-dark); border-radius: 40px; font-weight: 500; }

        /* ===== FAQ Section ===== */
        .faq-section {
            background: var(--bg-body);
            padding: 56px 0;
        }
        .faq-section .container { max-width: 820px; margin: 0 auto; }
        .faq-list { display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: box-shadow 0.25s var(--transition);
        }
        .faq-item:hover { box-shadow: var(--shadow-md); }
        .faq-question {
            padding: 18px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            transition: background 0.2s;
        }
        .faq-question:hover { background: rgba(232, 160, 32, 0.04); }
        .faq-question i { color: var(--primary); transition: transform 0.3s var(--transition); font-size: 1.1rem; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s var(--transition), padding 0.3s;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--secondary);
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(232, 160, 32, 0.08) 0%, transparent 70%);
            border-radius: 50%;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(232, 160, 32, 0.05) 0%, transparent 70%);
            border-radius: 50%;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { font-size: 2rem; font-weight: 800; color: var(--text-white); margin-bottom: 16px; }
        .cta-section p { color: rgba(240, 248, 252, 0.75); font-size: 1.05rem; margin-bottom: 28px; max-width: 600px; margin-left: auto; margin-right: auto; }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 40px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            border-radius: 50px;
            box-shadow: 0 6px 24px rgba(232, 160, 32, 0.35);
            transition: all 0.3s var(--transition);
        }
        .cta-btn:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(232, 160, 32, 0.45); color: #fff; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(240, 248, 252, 0.65);
            padding: 48px 0 0;
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
        }
        .footer-brand .logo { margin-bottom: 14px; font-size: 1.3rem; }
        .footer-brand .logo span { -webkit-text-fill-color: #fff; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 320px; }
        .footer-col h4 { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 16px; }
        .footer-col a { display: block; color: rgba(240, 248, 252, 0.6); padding: 5px 0; font-size: 0.9rem; transition: color 0.2s; }
        .footer-col a:hover { color: var(--primary); }
        .footer-social { display: flex; gap: 14px; margin-top: 8px; }
        .footer-social a { font-size: 1.4rem; color: rgba(240, 248, 252, 0.5); padding: 0; }
        .footer-social a:hover { color: var(--primary); }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            margin-top: 40px;
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            max-width: var(--max-width);
            margin-left: auto;
            margin-right: auto;
            color: rgba(240, 248, 252, 0.4);
        }
        .footer-bottom a { color: rgba(240, 248, 252, 0.5); }
        .footer-bottom a:hover { color: var(--primary); }

        /* ===== Not Found ===== */
        .not-found-wrap {
            padding: 80px 0;
            text-align: center;
            min-height: 60vh;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .not-found-wrap .icon { font-size: 4rem; color: var(--text-weak); margin-bottom: 20px; }
        .not-found-wrap h2 { font-size: 2rem; color: var(--secondary); margin-bottom: 12px; }
        .not-found-wrap p { color: var(--text-weak); margin-bottom: 24px; }
        .not-found-wrap a { font-weight: 600; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
            .article-title { font-size: 2rem; }
        }

        @media (max-width: 768px) {
            .main-nav { display: none; position: absolute; top: var(--header-h); left: 0; width: 100%; background: rgba(255,255,255,0.98); backdrop-filter: blur(12px); flex-direction: column; padding: 16px 24px 24px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-lg); }
            .main-nav.open { display: flex; }
            .main-nav a { padding: 12px 16px; width: 100%; border-radius: var(--radius-sm); }
            .main-nav a.nav-cta { justify-content: center; margin-top: 8px; }
            .main-nav a.active::after { display: none; }
            .main-nav a.active { background: rgba(232, 160, 32, 0.06); }
            .nav-toggle { display: block; }

            .article-title { font-size: 1.6rem; }
            .article-header { padding: 24px 0 20px; }
            .article-content-wrap { padding: 24px 0 32px; }
            .article-body { font-size: 1rem; }
            .article-image-wrap img { max-height: 300px; }

            .related-grid { grid-template-columns: 1fr 1fr; }
            .section-title { font-size: 1.4rem; }

            .footer-inner { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }

            .cta-section h2 { font-size: 1.5rem; }
            .cta-btn { padding: 14px 32px; font-size: 1rem; }

            .article-pagination .container { flex-direction: column; }
            .pagination-link { min-width: auto; }
        }

        @media (max-width: 520px) {
            .related-grid { grid-template-columns: 1fr; }
            .article-title { font-size: 1.3rem; }
            .article-meta { gap: 12px; font-size: 0.8rem; flex-wrap: wrap; }
            .container { padding: 0 16px; }
            .header-inner { padding: 0 16px; }
            .article-breadcrumb .container { padding: 0 16px; }
        }