/* roulang page: index */
/* ========= 设计变量 ========= */
        :root {
            --color-primary: #D95A3E;
            --color-primary-dark: #C04A30;
            --color-primary-light: #F5E6E0;
            --color-secondary: #2C3E50;
            --color-secondary-light: #3D5166;
            --color-accent: #E8A87C;
            --color-bg: #FFFFFF;
            --color-bg-warm: #F5F0EB;
            --color-bg-light: #FAF8F6;
            --color-text: #2C3E50;
            --color-text-weak: #7F8C8D;
            --color-text-inverse: #FFFFFF;
            --color-border: #E8E0DA;
            --color-border-light: #F0EBE6;
            --color-success: #4CAF50;
            --color-shadow: rgba(44, 62, 80, 0.08);
            --color-shadow-hover: rgba(44, 62, 80, 0.16);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 4px 20px var(--color-shadow);
            --shadow-card-hover: 0 12px 40px var(--color-shadow-hover);
            --shadow-nav: 0 2px 16px rgba(44, 62, 80, 0.06);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

        /* ========= 基础 Reset ========= */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
        }
        a { color: var(--color-primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--color-primary-dark); }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; width: 100%; }

        /* ========= Foundation 覆盖 ========= */
        .grid-container { max-width: var(--container-max); padding-left: 24px; padding-right: 24px; }
        .grid-x { margin-left: -12px; margin-right: -12px; }
        .cell { padding-left: 12px; padding-right: 12px; }

        /* ========= 导航 ========= */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            height: var(--nav-height); background: rgba(255,255,255,0.92);
            backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-nav); transition: var(--transition);
        }
        .site-header .container {
            display: flex; align-items: center; justify-content: space-between;
            height: 100%;
        }
        .nav-left { display: flex; align-items: center; gap: 40px; flex: 1; }
        .nav-logo { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 24px; color: var(--color-secondary); letter-spacing: -0.5px; }
        .nav-logo i { color: var(--color-primary); font-size: 28px; }
        .nav-logo span { background: linear-gradient(135deg, var(--color-primary), var(--color-accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .nav-links { display: flex; align-items: center; gap: 8px; }
        .nav-links a {
            padding: 8px 18px; border-radius: var(--radius-sm); font-size: 15px; font-weight: 500;
            color: var(--color-text); transition: var(--transition); position: relative;
        }
        .nav-links a:hover { color: var(--color-primary); background: var(--color-primary-light); }
        .nav-links a.active { color: var(--color-primary); background: var(--color-primary-light); font-weight: 600; }
        .nav-links a.active::after { content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; background: var(--color-primary); border-radius: 4px; }
        .nav-right { display: flex; align-items: center; gap: 16px; }
        .nav-cta {
            padding: 10px 28px; background: var(--color-primary); color: #fff !important;
            border-radius: var(--radius-xl); font-size: 14px; font-weight: 600;
            transition: var(--transition); border: none; cursor: pointer;
        }
        .nav-cta:hover { background: var(--color-primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(217, 90, 62, 0.3); }
        .nav-toggle { display: none; background: none; border: none; font-size: 26px; color: var(--color-secondary); cursor: pointer; padding: 4px; }

        /* 移动端导航 */
        .mobile-menu {
            display: none; position: fixed; top: var(--nav-height); left: 0; right: 0;
            background: rgba(255,255,255,0.98); backdrop-filter: blur(20px);
            padding: 20px 24px; border-bottom: 1px solid var(--color-border);
            box-shadow: 0 12px 40px rgba(0,0,0,0.08); z-index: 999;
        }
        .mobile-menu.open { display: block; }
        .mobile-menu a {
            display: block; padding: 14px 16px; font-size: 17px; font-weight: 500;
            color: var(--color-text); border-radius: var(--radius-sm); transition: var(--transition);
        }
        .mobile-menu a:hover { background: var(--color-primary-light); color: var(--color-primary); }
        .mobile-menu a.active { background: var(--color-primary-light); color: var(--color-primary); font-weight: 600; }
        .mobile-menu .nav-cta { margin-top: 12px; text-align: center; }

        /* ========= Hero 分屏 ========= */
        .hero-section {
            margin-top: var(--nav-height); min-height: calc(100vh - var(--nav-height));
            display: flex; align-items: stretch; background: var(--color-bg-warm);
            overflow: hidden; position: relative;
        }
        .hero-inner {
            display: flex; width: 100%; max-width: var(--container-max);
            margin: 0 auto; padding: 0 24px; align-items: center;
        }
        .hero-content {
            flex: 1; padding: 80px 60px 80px 0; max-width: 580px;
        }
        .hero-content .badge {
            display: inline-block; padding: 6px 18px; background: var(--color-primary-light);
            color: var(--color-primary); border-radius: var(--radius-xl); font-size: 13px; font-weight: 600;
            margin-bottom: 20px; letter-spacing: 0.3px;
        }
        .hero-content h1 {
            font-size: 52px; font-weight: 800; line-height: 1.15; letter-spacing: -1.5px;
            color: var(--color-secondary); margin-bottom: 20px;
        }
        .hero-content h1 .highlight { color: var(--color-primary); }
        .hero-content p {
            font-size: 18px; color: var(--color-text-weak); line-height: 1.8;
            margin-bottom: 36px; max-width: 480px;
        }
        .hero-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
        .hero-actions .btn-primary {
            padding: 16px 40px; background: var(--color-primary); color: #fff;
            border-radius: var(--radius-xl); font-size: 16px; font-weight: 600;
            border: none; cursor: pointer; transition: var(--transition);
            box-shadow: 0 8px 28px rgba(217, 90, 62, 0.25);
        }
        .hero-actions .btn-primary:hover { background: var(--color-primary-dark); transform: translateY(-3px); box-shadow: 0 14px 40px rgba(217, 90, 62, 0.35); }
        .hero-actions .btn-secondary {
            padding: 14px 32px; background: transparent; color: var(--color-secondary);
            border-radius: var(--radius-xl); font-size: 16px; font-weight: 600;
            border: 2px solid var(--color-border); cursor: pointer; transition: var(--transition);
        }
        .hero-actions .btn-secondary:hover { border-color: var(--color-primary); color: var(--color-primary); background: rgba(217, 90, 62, 0.04); }
        .hero-visual {
            flex: 1; position: relative; min-height: 500px;
            display: flex; align-items: center; justify-content: center;
            border-radius: var(--radius-lg); overflow: hidden;
        }
        .hero-visual .bg-img {
            position: absolute; inset: 0; width: 100%; height: 100%;
            object-fit: cover; border-radius: var(--radius-lg);
        }
        .hero-visual .overlay {
            position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(217,90,62,0.10) 0%, rgba(232,168,124,0.20) 100%);
            border-radius: var(--radius-lg);
        }
        .hero-visual .floating-tag {
            position: relative; z-index: 2; background: rgba(255,255,255,0.92);
            backdrop-filter: blur(12px); padding: 20px 28px; border-radius: var(--radius-md);
            box-shadow: 0 12px 40px rgba(0,0,0,0.10); text-align: center;
        }
        .hero-visual .floating-tag i { font-size: 40px; color: var(--color-primary); margin-bottom: 8px; }
        .hero-visual .floating-tag h3 { font-size: 20px; font-weight: 700; color: var(--color-secondary); }
        .hero-visual .floating-tag p { font-size: 14px; color: var(--color-text-weak); margin: 4px 0 0; }

        /* ========= 通用板块 ========= */
        .section { padding: 96px 0; }
        .section-bg { background: var(--color-bg-warm); }
        .section-bg-alt { background: var(--color-bg-light); }
        .section-header { text-align: center; margin-bottom: 56px; }
        .section-header .tag {
            display: inline-block; padding: 4px 16px; background: var(--color-primary-light);
            color: var(--color-primary); border-radius: var(--radius-xl); font-size: 13px; font-weight: 600;
            margin-bottom: 16px; letter-spacing: 0.5px;
        }
        .section-header h2 {
            font-size: 38px; font-weight: 800; color: var(--color-secondary);
            letter-spacing: -0.5px; line-height: 1.25; margin-bottom: 16px;
        }
        .section-header p {
            font-size: 17px; color: var(--color-text-weak); max-width: 560px;
            margin: 0 auto; line-height: 1.8;
        }
        .section-header.light h2 { color: #fff; }
        .section-header.light p { color: rgba(255,255,255,0.8); }

        /* ========= 卡片系统 ========= */
        .card-grid { display: grid; gap: 28px; }
        .card-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
        .card-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
        .card-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

        .card {
            background: var(--color-bg); border-radius: var(--radius-md);
            box-shadow: var(--shadow-card); overflow: hidden;
            transition: var(--transition); border: 1px solid var(--color-border-light);
            display: flex; flex-direction: column;
        }
        .card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-6px); }
        .card-img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
        .card-body { padding: 28px; flex: 1; display: flex; flex-direction: column; }
        .card-body h3 { font-size: 20px; font-weight: 700; color: var(--color-secondary); margin-bottom: 10px; }
        .card-body p { font-size: 15px; color: var(--color-text-weak); line-height: 1.7; flex: 1; }
        .card-body .card-tag {
            display: inline-block; padding: 3px 12px; background: var(--color-primary-light);
            color: var(--color-primary); border-radius: var(--radius-sm); font-size: 12px; font-weight: 600;
            margin-top: 16px; align-self: flex-start;
        }
        .card-link { margin-top: 16px; font-weight: 600; color: var(--color-primary); display: inline-flex; align-items: center; gap: 6px; }
        .card-link i { font-size: 14px; transition: var(--transition); }
        .card-link:hover i { transform: translateX(4px); }

        /* ========= 按钮 ========= */
        .btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 36px; border-radius: var(--radius-xl); font-weight: 600; font-size: 15px; border: none; cursor: pointer; transition: var(--transition); text-align: center; justify-content: center; }
        .btn-primary { background: var(--color-primary); color: #fff; box-shadow: 0 6px 20px rgba(217,90,62,0.20); }
        .btn-primary:hover { background: var(--color-primary-dark); transform: translateY(-2px); box-shadow: 0 10px 32px rgba(217,90,62,0.30); color: #fff; }
        .btn-secondary { background: transparent; color: var(--color-secondary); border: 2px solid var(--color-border); }
        .btn-secondary:hover { border-color: var(--color-primary); color: var(--color-primary); background: rgba(217,90,62,0.04); }
        .btn-white { background: #fff; color: var(--color-primary); }
        .btn-white:hover { background: var(--color-bg-warm); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.10); }

        /* ========= 标签/徽章 ========= */
        .badge { display: inline-block; padding: 4px 14px; border-radius: var(--radius-xl); font-size: 12px; font-weight: 600; background: var(--color-primary-light); color: var(--color-primary); }
        .badge.outline { background: transparent; border: 1.5px solid var(--color-primary); }
        .badge.success { background: #E8F5E9; color: #2E7D32; }
        .badge.info { background: #E3F2FD; color: #1565C0; }

        /* ========= 统计数字 ========= */
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
        .stat-item { padding: 20px; }
        .stat-item .num { font-size: 48px; font-weight: 800; color: var(--color-primary); line-height: 1.1; letter-spacing: -1px; }
        .stat-item .num .suffix { font-size: 24px; font-weight: 700; }
        .stat-item .label { font-size: 15px; color: var(--color-text-weak); margin-top: 8px; font-weight: 500; }

        /* ========= 资讯列表（CMS） ========= */
        .news-list { display: grid; gap: 20px; }
        .news-item {
            display: flex; align-items: center; gap: 24px;
            background: var(--color-bg); padding: 24px 28px;
            border-radius: var(--radius-md); box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light); transition: var(--transition);
        }
        .news-item:hover { box-shadow: var(--shadow-card-hover); transform: translateX(4px); }
        .news-item .news-cat {
            padding: 4px 14px; background: var(--color-primary-light); color: var(--color-primary);
            border-radius: var(--radius-sm); font-size: 12px; font-weight: 600; flex-shrink: 0;
        }
        .news-item .news-title { flex: 1; font-size: 17px; font-weight: 600; color: var(--color-secondary); }
        .news-item .news-title a { color: inherit; }
        .news-item .news-title a:hover { color: var(--color-primary); }
        .news-item .news-date { font-size: 14px; color: var(--color-text-weak); flex-shrink: 0; }
        .news-empty { text-align: center; padding: 40px; color: var(--color-text-weak); font-size: 16px; background: var(--color-bg); border-radius: var(--radius-md); box-shadow: var(--shadow-card); }

        /* ========= 流程步骤 ========= */
        .steps-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; position: relative; }
        .steps-grid::before {
            content: ''; position: absolute; top: 48px; left: 10%; right: 10%;
            height: 3px; background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
            border-radius: 4px; z-index: 0;
        }
        .step-item { text-align: center; position: relative; z-index: 1; }
        .step-item .step-icon {
            width: 80px; height: 80px; margin: 0 auto 16px;
            background: var(--color-bg); border-radius: 50%;
            display: flex; align-items: center; justify-content: center;
            font-size: 32px; color: var(--color-primary);
            box-shadow: 0 8px 24px var(--color-shadow);
            border: 3px solid var(--color-primary-light); transition: var(--transition);
        }
        .step-item:hover .step-icon { border-color: var(--color-primary); transform: scale(1.05); box-shadow: 0 12px 36px var(--color-shadow-hover); }
        .step-item .step-num { font-size: 13px; font-weight: 700; color: var(--color-primary); margin-bottom: 4px; }
        .step-item h4 { font-size: 16px; font-weight: 700; color: var(--color-secondary); }
        .step-item p { font-size: 14px; color: var(--color-text-weak); margin-top: 4px; }

        /* ========= FAQ ========= */
        .faq-list { max-width: 760px; margin: 0 auto; }
        .faq-item {
            background: var(--color-bg); border-radius: var(--radius-md);
            box-shadow: var(--shadow-card); border: 1px solid var(--color-border-light);
            margin-bottom: 16px; overflow: hidden; transition: var(--transition);
        }
        .faq-item:hover { box-shadow: var(--shadow-card-hover); }
        .faq-question {
            padding: 22px 28px; display: flex; align-items: center; justify-content: space-between;
            cursor: pointer; font-size: 17px; font-weight: 600; color: var(--color-secondary);
            transition: var(--transition); user-select: none;
        }
        .faq-question i { color: var(--color-primary); font-size: 14px; transition: var(--transition); }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 28px 22px; font-size: 15px; color: var(--color-text-weak);
            line-height: 1.8; display: none;
        }
        .faq-item.open .faq-answer { display: block; }

        /* ========= CTA 区域 ========= */
        .cta-section {
            background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-light) 100%);
            padding: 80px 0; text-align: center; position: relative; overflow: hidden;
        }
        .cta-section::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.08; mix-blend-mode: overlay;
        }
        .cta-section .container { position: relative; z-index: 1; }
        .cta-section h2 { font-size: 40px; font-weight: 800; color: #fff; margin-bottom: 16px; letter-spacing: -0.5px; }
        .cta-section p { font-size: 18px; color: rgba(255,255,255,0.75); margin-bottom: 36px; max-width: 520px; margin-left: auto; margin-right: auto; }
        .cta-section .btn-white { padding: 16px 48px; font-size: 17px; }

        /* ========= 页脚 ========= */
        .site-footer {
            background: var(--color-secondary); color: rgba(255,255,255,0.7);
            padding: 64px 0 32px; border-top: 1px solid rgba(255,255,255,0.06);
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
        .footer-brand .nav-logo { color: #fff; margin-bottom: 12px; }
        .footer-brand .nav-logo i { color: var(--color-accent); }
        .footer-brand .nav-logo span { -webkit-text-fill-color: #fff; color: #fff; }
        .footer-brand p { font-size: 14px; line-height: 1.8; max-width: 300px; }
        .footer-col h4 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 16px; }
        .footer-col a { display: block; padding: 4px 0; font-size: 14px; color: rgba(255,255,255,0.6); transition: var(--transition); }
        .footer-col a:hover { color: var(--color-accent); padding-left: 4px; }
        .footer-bottom {
            margin-top: 48px; padding-top: 24px;
            border-top: 1px solid rgba(255,255,255,0.08);
            display: flex; justify-content: space-between; align-items: center;
            font-size: 14px; color: rgba(255,255,255,0.5);
        }
        .footer-bottom a { color: rgba(255,255,255,0.6); }
        .footer-bottom a:hover { color: var(--color-accent); }

        /* ========= 响应式 ========= */
        @media (max-width: 1024px) {
            .hero-content h1 { font-size: 40px; }
            .hero-content { padding: 60px 40px 60px 0; }
            .card-grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: repeat(3, 1fr); }
            .steps-grid::before { display: none; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            :root { --nav-height: 64px; }
            .nav-links { display: none; }
            .nav-toggle { display: block; }
            .nav-right .nav-cta { display: none; }
            .hero-inner { flex-direction: column; padding: 40px 24px; }
            .hero-content { padding: 0; max-width: 100%; text-align: center; }
            .hero-content h1 { font-size: 34px; }
            .hero-content p { margin-left: auto; margin-right: auto; }
            .hero-actions { justify-content: center; }
            .hero-visual { min-height: 320px; width: 100%; margin-top: 32px; }
            .section { padding: 64px 0; }
            .section-header h2 { font-size: 30px; }
            .card-grid.cols-3, .card-grid.cols-2 { grid-template-columns: 1fr; }
            .card-grid.cols-4 { grid-template-columns: 1fr 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-item .num { font-size: 36px; }
            .steps-grid { grid-template-columns: repeat(2, 1fr); }
            .news-item { flex-direction: column; align-items: flex-start; gap: 12px; padding: 20px; }
            .news-item .news-date { align-self: flex-end; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
            .cta-section h2 { font-size: 30px; }
            .cta-section p { font-size: 16px; }
        }

        @media (max-width: 520px) {
            .hero-content h1 { font-size: 28px; }
            .hero-actions .btn-primary, .hero-actions .btn-secondary { width: 100%; text-align: center; }
            .card-grid.cols-4 { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr 1fr; }
            .steps-grid { grid-template-columns: 1fr; }
            .step-item { max-width: 260px; margin: 0 auto; }
            .section-header h2 { font-size: 26px; }
            .faq-question { font-size: 15px; padding: 18px 20px; }
            .faq-answer { padding: 0 20px 18px; }
        }

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

        /* 图片占位优雅降级 */
        .card-img-bg {
            width: 100%; aspect-ratio: 16/10; background: var(--color-bg-warm);
            display: flex; align-items: center; justify-content: center;
            color: var(--color-text-weak); font-size: 14px;
        }

/* roulang page: article */
/* ============================================================
           :root 设计变量 — 完整视觉主题
           ============================================================ */
        :root {
            --primary: #c44536;
            --primary-dark: #a83628;
            --primary-light: #e86b5a;
            --primary-bg: #fef6f4;
            --secondary: #2d6a4f;
            --secondary-light: #40916c;
            --accent: #f4a261;
            --accent-light: #f9c78a;
            --bg-body: #faf8f6;
            --bg-card: #ffffff;
            --bg-alt: #f5f1ed;
            --bg-dark: #1e1e24;
            --text-primary: #2b2b2b;
            --text-secondary: #555555;
            --text-light: #8a8a8a;
            --text-white: #fefefe;
            --border: #e2ddd7;
            --border-light: #f0ebe5;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --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 16px 48px rgba(0,0,0,0.10);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.12);
            --transition: 0.28s cubic-bezier(0.22, 1, 0.36, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --font-serif: 'Noto Serif SC', Georgia, 'Times New Roman', serif;
            --max-width: 1200px;
            --header-h: 72px;
            --space-section: 5.6rem;
            --space-block: 2.8rem;
        }

        /* ============================================================
           Reset & Base
           ============================================================ */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-h);
        }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-dark); }
        a:focus-visible { outline: 3px solid var(--primary-light); outline-offset: 2px; border-radius: 4px; }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }

        /* ============================================================
           Container
           ============================================================ */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-narrow { max-width: 860px; margin: 0 auto; padding: 0 24px; }
        .container-wide { max-width: 1400px; margin: 0 auto; padding: 0 24px; }

        /* ============================================================
           Site Header — 分屏联动导航
           ============================================================ */
        .site-header {
            position: fixed;
            top: 0; left: 0; right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(255,255,255,0.94);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled { box-shadow: var(--shadow-sm); }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .nav-left {
            display: flex;
            align-items: center;
            gap: 2.4rem;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            transition: opacity var(--transition);
        }
        .nav-logo i { color: var(--primary); font-size: 1.4rem; }
        .nav-logo span { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .nav-logo:hover { opacity: 0.85; color: var(--text-primary); }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.2rem;
        }
        .nav-links a {
            padding: 0.5rem 1.1rem;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            position: relative;
        }
        .nav-links a:hover { color: var(--primary); background: var(--primary-bg); }
        .nav-links a.active {
            color: var(--primary);
            background: var(--primary-bg);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px; left: 50%;
            transform: translateX(-50%);
            width: 20px; height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 1.2rem;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 0.55rem 1.4rem;
            background: var(--primary);
            color: #fff !important;
            border-radius: 50px;
            font-size: 0.88rem;
            font-weight: 600;
            transition: all var(--transition);
            box-shadow: 0 4px 12px rgba(196,69,54,0.25);
        }
        .nav-cta i { font-size: 0.85rem; }
        .nav-cta:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(196,69,54,0.35); }
        .nav-toggle { display: none; font-size: 1.4rem; color: var(--text-primary); padding: 6px 10px; border-radius: var(--radius-sm); transition: background var(--transition); }
        .nav-toggle:hover { background: var(--bg-alt); }

        /* ============================================================
           Mobile Nav
           ============================================================ */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--header-h); left: 0; right: 0;
            background: rgba(255,255,255,0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            padding: 1.2rem 1.6rem 2rem;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            z-index: 999;
            flex-direction: column;
            gap: 0.6rem;
        }
        .mobile-nav.open { display: flex; }
        .mobile-nav a {
            padding: 0.7rem 1rem;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .mobile-nav a:hover { color: var(--primary); background: var(--primary-bg); }
        .mobile-nav a.active { color: var(--primary); background: var(--primary-bg); font-weight: 600; }
        .mobile-nav .nav-cta {
            margin-top: 0.6rem;
            justify-content: center;
        }

        /* ============================================================
           Page Banner (内页横幅)
           ============================================================ */
        .page-banner {
            position: relative;
            padding: 5.6rem 0 4rem;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            overflow: hidden;
            text-align: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .page-banner .container { position: relative; z-index: 2; }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 0.6rem;
            letter-spacing: -0.5px;
        }
        .page-banner p {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.85);
            max-width: 620px;
            margin: 0 auto;
        }
        .page-banner .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 0.4rem 1.2rem;
            flex-wrap: wrap;
            margin-bottom: 1.6rem;
            font-size: 0.92rem;
            color: rgba(255,255,255,0.7);
        }
        .page-banner .breadcrumb a { color: rgba(255,255,255,0.85); }
        .page-banner .breadcrumb a:hover { color: #fff; }
        .page-banner .breadcrumb span { color: rgba(255,255,255,0.6); }

        /* ============================================================
           Article Detail
           ============================================================ */
        .article-detail {
            padding: var(--space-section) 0;
        }
        .article-header {
            margin-bottom: 2.8rem;
            text-align: center;
        }
        .article-header .category-tag {
            display: inline-block;
            padding: 0.25rem 1rem;
            background: var(--primary-bg);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.82rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }
        .article-header h1 {
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 1rem;
            letter-spacing: -0.3px;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1.2rem 2rem;
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .article-meta i { margin-right: 6px; color: var(--primary-light); }
        .article-cover {
            margin-bottom: 2.8rem;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .article-cover img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
        .article-body {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-primary);
        }
        .article-body p { margin-bottom: 1.6rem; }
        .article-body h2 { font-size: 1.6rem; font-weight: 700; margin: 2.4rem 0 1rem; color: var(--text-primary); }
        .article-body h3 { font-size: 1.25rem; font-weight: 600; margin: 2rem 0 0.8rem; color: var(--text-primary); }
        .article-body ul, .article-body ol { margin: 1rem 0 1.6rem 1.6rem; list-style: disc; }
        .article-body li { margin-bottom: 0.4rem; }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 1rem 1.6rem;
            margin: 1.6rem 0;
            background: var(--primary-bg);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body img { border-radius: var(--radius-md); margin: 1.6rem 0; box-shadow: var(--shadow-sm); }
        .article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 2px; }

        /* ============================================================
           Article Footer (分享/标签/导航)
           ============================================================ */
        .article-footer {
            margin-top: 3.6rem;
            padding-top: 2rem;
            border-top: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
        }
        .article-tags .tag {
            padding: 0.3rem 1rem;
            background: var(--bg-alt);
            color: var(--text-secondary);
            border-radius: 50px;
            font-size: 0.82rem;
            transition: all var(--transition);
        }
        .article-tags .tag:hover { background: var(--primary-bg); color: var(--primary); }
        .article-share {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .article-share span { font-size: 0.9rem; color: var(--text-light); }
        .article-share a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px; height: 36px;
            border-radius: 50%;
            background: var(--bg-alt);
            color: var(--text-secondary);
            transition: all var(--transition);
        }
        .article-share a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

        /* ============================================================
           Related Articles
           ============================================================ */
        .related-section {
            padding: var(--space-section) 0;
            background: var(--bg-alt);
        }
        .related-section .section-title {
            text-align: center;
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 2.4rem;
            color: var(--text-primary);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.6rem;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
        .related-card img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
        .related-card .card-body { padding: 1.2rem 1.4rem 1.4rem; }
        .related-card .card-body h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 0.4rem; }
        .related-card .card-body h3 a { color: var(--text-primary); }
        .related-card .card-body h3 a:hover { color: var(--primary); }
        .related-card .card-body .meta { font-size: 0.82rem; color: var(--text-light); }

        /* ============================================================
           CTA Section
           ============================================================ */
        .cta-section {
            padding: 4rem 0;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            text-align: center;
            color: #fff;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
        }
        .cta-section p {
            font-size: 1.1rem;
            opacity: 0.9;
            max-width: 540px;
            margin: 0 auto 1.6rem;
        }
        .cta-section .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 0.85rem 2.4rem;
            background: #fff;
            color: var(--primary) !important;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 700;
            transition: all var(--transition);
            box-shadow: 0 6px 24px rgba(0,0,0,0.15);
        }
        .cta-section .cta-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 32px rgba(0,0,0,0.2); }

        /* ============================================================
           Site Footer — 已定义风格
           ============================================================ */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.75);
            padding: 4rem 0 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 2.4rem;
            padding-bottom: 2.4rem;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .site-footer .footer-brand .nav-logo { color: #fff; margin-bottom: 0.8rem; }
        .site-footer .footer-brand .nav-logo span { -webkit-text-fill-color: #fff; background: none; }
        .site-footer .footer-brand p { font-size: 0.92rem; line-height: 1.6; max-width: 280px; color: rgba(255,255,255,0.6); }
        .site-footer .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-col a {
            display: block;
            padding: 0.3rem 0;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
            transition: all var(--transition);
        }
        .site-footer .footer-col a:hover { color: var(--accent-light); padding-left: 4px; }
        .site-footer .footer-col a i { width: 20px; margin-right: 6px; }
        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.8rem;
            padding: 1.6rem 0;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }
        .site-footer .footer-bottom a { color: rgba(255,255,255,0.5); }
        .site-footer .footer-bottom a:hover { color: var(--accent-light); }

        /* ============================================================
           Not Found State
           ============================================================ */
        .not-found-article {
            text-align: center;
            padding: 4rem 2rem;
        }
        .not-found-article i { font-size: 3.6rem; color: var(--text-light); margin-bottom: 1.2rem; }
        .not-found-article h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 0.8rem; }
        .not-found-article p { color: var(--text-secondary); margin-bottom: 1.6rem; }
        .not-found-article .back-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 0.7rem 1.8rem;
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            font-weight: 600;
            transition: all var(--transition);
        }
        .not-found-article .back-home:hover { background: var(--primary-dark); transform: translateY(-2px); }

        /* ============================================================
           Responsive — 完整断点
           ============================================================ */
        @media (max-width: 1024px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .site-footer .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 900px) {
            .nav-links { display: none; }
            .nav-toggle { display: block; }
            .nav-cta { display: none; }
            .nav-right .nav-cta { display: none; }
            .mobile-nav .nav-cta { display: flex; }
            :root { --header-h: 64px; }
            .page-banner h1 { font-size: 2rem; }
            .article-header h1 { font-size: 1.7rem; }
        }
        @media (max-width: 768px) {
            .page-banner { padding: 4rem 0 2.8rem; }
            .page-banner h1 { font-size: 1.7rem; }
            .page-banner p { font-size: 0.95rem; }
            .article-detail { padding: var(--space-block) 0; }
            .article-header h1 { font-size: 1.5rem; }
            .article-body { font-size: 1rem; }
            .related-grid { grid-template-columns: 1fr; }
            .article-footer { flex-direction: column; align-items: flex-start; }
            .cta-section h2 { font-size: 1.6rem; }
            .site-footer .footer-grid { grid-template-columns: 1fr; gap: 1.6rem; }
            .site-footer .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .container-narrow { padding: 0 16px; }
            .page-banner h1 { font-size: 1.4rem; }
            .article-header h1 { font-size: 1.3rem; }
            .article-meta { font-size: 0.82rem; gap: 0.6rem 1rem; }
            .article-body { font-size: 0.95rem; }
            .cta-section h2 { font-size: 1.3rem; }
            .cta-section p { font-size: 0.95rem; }
        }

        /* ============================================================
           Foundation Overrides — 融入定制主题
           ============================================================ */
        .grid-container { max-width: var(--max-width); padding-left: 24px; padding-right: 24px; }
        .cell { margin-bottom: 0; }
        .button { border-radius: 50px; font-weight: 600; transition: all var(--transition); }
        .button:hover { transform: translateY(-1px); }
        .card { border-radius: var(--radius-md); box-shadow: var(--shadow-sm); border: 1px solid var(--border-light); transition: all var(--transition); }
        .card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
        .badge { border-radius: 50px; font-weight: 600; padding: 0.25rem 0.9rem; }
        label { font-weight: 500; color: var(--text-primary); }
        input, textarea, select { border-radius: var(--radius-sm); border: 1px solid var(--border); }
        input:focus, textarea:focus, select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(196,69,54,0.12); }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #1a2a4a;
            --color-primary-light: #2a3f6a;
            --color-primary-dark: #0d1526;
            --color-accent: #e86a33;
            --color-accent-hover: #d55a26;
            --color-accent-light: #fdf0ea;
            --color-bg: #f8f6f3;
            --color-bg-alt: #f0ede8;
            --color-white: #ffffff;
            --color-text: #1a1a2e;
            --color-text-weak: #5a5a72;
            --color-text-light: #8a8aa0;
            --color-border: #e2ddd6;
            --color-border-light: #efeae4;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(26, 42, 74, 0.06);
            --shadow-md: 0 6px 24px rgba(26, 42, 74, 0.08);
            --shadow-lg: 0 12px 40px rgba(26, 42, 74, 0.10);
            --shadow-hover: 0 16px 48px rgba(26, 42, 74, 0.14);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', -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; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-h);
        }
        a { color: var(--color-accent); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--color-accent-hover); }
        a:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-md); }
        ul, ol { list-style: none; }
        button { cursor: pointer; font-family: inherit; border: none; background: none; }
        input, textarea { font-family: inherit; font-size: 1rem; }
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
        .section { padding: 80px 0; }
        .section-alt { background: var(--color-bg-alt); }
        .section-white { background: var(--color-white); }

        /* ===== 标题层级 ===== */
        .heading-xl { font-size: 3rem; font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }
        .heading-lg { font-size: 2.25rem; font-weight: 700; line-height: 1.25; letter-spacing: -0.01em; }
        .heading-md { font-size: 1.5rem; font-weight: 600; line-height: 1.35; }
        .heading-sm { font-size: 1.125rem; font-weight: 600; line-height: 1.5; }
        .text-lead { font-size: 1.125rem; color: var(--color-text-weak); line-height: 1.7; }
        .text-small { font-size: 0.875rem; color: var(--color-text-light); }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            height: var(--header-h);
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: 0 1px 8px rgba(26,42,74,0.04);
        }
        .site-header .container {
            display: flex; align-items: center; justify-content: space-between;
            height: 100%;
        }
        .nav-left { display: flex; align-items: center; gap: 40px; }
        .nav-logo {
            display: flex; align-items: center; gap: 10px;
            font-size: 1.35rem; font-weight: 700; color: var(--color-primary) !important;
            letter-spacing: -0.01em;
        }
        .nav-logo i { font-size: 1.5rem; color: var(--color-accent); }
        .nav-logo span { background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .nav-links { display: flex; align-items: center; gap: 8px; }
        .nav-links a {
            padding: 6px 18px; border-radius: 40px;
            font-size: 0.9375rem; font-weight: 500; color: var(--color-text-weak);
            transition: all var(--transition); position: relative;
        }
        .nav-links a:hover { color: var(--color-primary); background: rgba(26,42,74,0.05); }
        .nav-links a.active { color: var(--color-white); background: var(--color-primary); font-weight: 600; }
        .nav-links a.active::after { display: none; }
        .nav-right { display: flex; align-items: center; gap: 16px; }
        .nav-cta {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 10px 24px; border-radius: 40px;
            background: var(--color-accent); color: var(--color-white) !important;
            font-size: 0.9375rem; font-weight: 600;
            transition: all var(--transition); box-shadow: 0 4px 14px rgba(232,106,51,0.25);
        }
        .nav-cta:hover { background: var(--color-accent-hover); box-shadow: 0 6px 20px rgba(232,106,51,0.35); transform: translateY(-1px); }
        .nav-cta i { font-size: 0.875rem; }
        .nav-toggle { display: none; font-size: 1.4rem; color: var(--color-primary); padding: 6px 10px; border-radius: var(--radius-sm); }
        .nav-toggle:hover { background: rgba(26,42,74,0.05); }

        /* ===== 移动端导航 ===== */
        @media (max-width: 820px) {
            .nav-links { display: none; }
            .nav-links.open { display: flex; flex-direction: column; position: absolute; top: var(--header-h); left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(12px); padding: 16px 24px 24px; border-bottom: 1px solid var(--color-border-light); box-shadow: var(--shadow-md); gap: 4px; }
            .nav-links.open a { padding: 12px 18px; width: 100%; border-radius: var(--radius-sm); }
            .nav-links.open a.active { background: var(--color-primary); color: var(--color-white); }
            .nav-toggle { display: block; }
            .nav-cta span { display: none; }
            .nav-cta { padding: 10px 16px; }
            .nav-left { gap: 16px; }
        }
        @media (max-width: 480px) {
            .nav-logo span { font-size: 1.1rem; }
            .nav-logo i { font-size: 1.2rem; }
            .nav-cta { font-size: 0.8125rem; padding: 8px 12px; }
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative; padding: 100px 0 80px;
            background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 60%, var(--color-primary-light) 100%);
            overflow: hidden; min-height: 320px;
            display: flex; align-items: center;
        }
        .page-hero::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.15; mix-blend-mode: overlay;
        }
        .page-hero::after {
            content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 80px;
            background: linear-gradient(to top, var(--color-bg), transparent);
        }
        .page-hero .container { position: relative; z-index: 2; text-align: center; }
        .page-hero h1 {
            font-size: 3rem; font-weight: 700; color: var(--color-white);
            letter-spacing: -0.02em; margin-bottom: 16px;
        }
        .page-hero p {
            font-size: 1.2rem; color: rgba(255,255,255,0.8);
            max-width: 640px; margin: 0 auto; line-height: 1.7;
        }
        .page-hero .breadcrumb {
            margin-top: 20px; font-size: 0.875rem; color: rgba(255,255,255,0.6);
        }
        .page-hero .breadcrumb a { color: rgba(255,255,255,0.8); }
        .page-hero .breadcrumb a:hover { color: var(--color-white); }
        .page-hero .breadcrumb span { color: rgba(255,255,255,0.9); }

        @media (max-width: 768px) {
            .page-hero { padding: 80px 0 60px; min-height: 240px; }
            .page-hero h1 { font-size: 2.2rem; }
            .page-hero p { font-size: 1rem; }
        }
        @media (max-width: 480px) {
            .page-hero h1 { font-size: 1.8rem; }
            .page-hero p { font-size: 0.9375rem; }
        }

        /* ===== 服务标签 ===== */
        .service-tabs-wrap { margin-top: -40px; position: relative; z-index: 3; }
        .service-tabs {
            display: flex; flex-wrap: wrap; gap: 12px; justify-content: center;
            background: var(--color-white); border-radius: var(--radius-lg);
            padding: 20px 28px; box-shadow: var(--shadow-md);
        }
        .service-tabs .tab-btn {
            padding: 10px 28px; border-radius: 40px;
            font-size: 0.9375rem; font-weight: 500; color: var(--color-text-weak);
            background: var(--color-bg); transition: all var(--transition);
            border: 1px solid var(--color-border-light);
        }
        .service-tabs .tab-btn:hover { color: var(--color-primary); border-color: var(--color-primary); background: rgba(26,42,74,0.04); }
        .service-tabs .tab-btn.active { background: var(--color-primary); color: var(--color-white); border-color: var(--color-primary); box-shadow: 0 4px 12px rgba(26,42,74,0.16); }

        @media (max-width: 768px) {
            .service-tabs-wrap { margin-top: -20px; }
            .service-tabs { padding: 16px 20px; gap: 8px; }
            .service-tabs .tab-btn { padding: 8px 18px; font-size: 0.8125rem; }
        }

        /* ===== 服务卡片 ===== */
        .service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 48px; }
        .service-card {
            background: var(--color-white); border-radius: var(--radius-lg);
            padding: 32px 24px 28px; box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition); text-align: center;
        }
        .service-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: transparent; }
        .service-card .card-icon {
            width: 64px; height: 64px; margin: 0 auto 18px;
            background: var(--color-accent-light); border-radius: 16px;
            display: flex; align-items: center; justify-content: center;
            font-size: 1.6rem; color: var(--color-accent); transition: all var(--transition);
        }
        .service-card:hover .card-icon { background: var(--color-accent); color: var(--color-white); }
        .service-card h3 { font-size: 1.125rem; font-weight: 600; margin-bottom: 10px; color: var(--color-primary); }
        .service-card p { font-size: 0.9375rem; color: var(--color-text-weak); line-height: 1.6; margin-bottom: 16px; }
        .service-card .tag-list { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; }
        .service-card .tag-list .tag {
            padding: 3px 12px; border-radius: 20px; font-size: 0.75rem;
            background: var(--color-bg); color: var(--color-text-weak);
            border: 1px solid var(--color-border-light);
        }

        @media (max-width: 1024px) { .service-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 560px) { .service-grid { grid-template-columns: 1fr; } }

        /* ===== 核心产品展示 ===== */
        .product-showcase { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
        .product-showcase.reverse { direction: rtl; }
        .product-showcase.reverse > * { direction: ltr; }
        .showcase-img img { width: 100%; border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }
        .showcase-content h2 { font-size: 1.75rem; font-weight: 700; margin-bottom: 16px; color: var(--color-primary); }
        .showcase-content p { color: var(--color-text-weak); line-height: 1.7; margin-bottom: 20px; }
        .showcase-content ul li {
            display: flex; align-items: flex-start; gap: 10px; margin-bottom: 10px;
            font-size: 0.9375rem; color: var(--color-text-weak);
        }
        .showcase-content ul li i { color: var(--color-accent); margin-top: 3px; font-size: 0.875rem; }

        @media (max-width: 860px) {
            .product-showcase { grid-template-columns: 1fr; gap: 28px; }
            .product-showcase.reverse { direction: ltr; }
            .showcase-content h2 { font-size: 1.4rem; }
        }

        /* ===== 特色优势 ===== */
        .features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 48px; }
        .feature-item {
            text-align: center; padding: 32px 20px;
            background: var(--color-white); border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm); border: 1px solid var(--color-border-light);
            transition: all var(--transition);
        }
        .feature-item:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
        .feature-item .fi-icon {
            width: 56px; height: 56px; margin: 0 auto 16px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            border-radius: 16px; display: flex; align-items: center; justify-content: center;
            font-size: 1.4rem; color: var(--color-white);
        }
        .feature-item h4 { font-size: 1.0625rem; font-weight: 600; margin-bottom: 8px; color: var(--color-primary); }
        .feature-item p { font-size: 0.875rem; color: var(--color-text-weak); line-height: 1.6; }

        @media (max-width: 1024px) { .features-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 560px) { .features-grid { grid-template-columns: 1fr; } }

        /* ===== 服务流程 ===== */
        .process-steps { display: flex; gap: 0; margin-top: 48px; position: relative; }
        .process-steps::before {
            content: ''; position: absolute; top: 40px; left: 10%; right: 10%;
            height: 3px; background: linear-gradient(to right, var(--color-accent), var(--color-primary));
            border-radius: 4px; z-index: 0;
        }
        .step-item { flex: 1; text-align: center; position: relative; z-index: 1; padding: 0 12px; }
        .step-num {
            width: 80px; height: 80px; margin: 0 auto 20px;
            background: var(--color-white); border-radius: 50%;
            display: flex; align-items: center; justify-content: center;
            font-size: 1.6rem; font-weight: 700; color: var(--color-accent);
            box-shadow: 0 0 0 4px var(--color-accent-light), var(--shadow-md);
            transition: all var(--transition);
        }
        .step-item:hover .step-num { box-shadow: 0 0 0 4px var(--color-accent), var(--shadow-md); color: var(--color-primary); }
        .step-item h4 { font-size: 1rem; font-weight: 600; margin-bottom: 6px; color: var(--color-primary); }
        .step-item p { font-size: 0.875rem; color: var(--color-text-weak); line-height: 1.5; max-width: 160px; margin: 0 auto; }

        @media (max-width: 768px) {
            .process-steps { flex-direction: column; gap: 32px; }
            .process-steps::before { display: none; }
            .step-item { display: flex; align-items: center; gap: 20px; text-align: left; padding: 0; }
            .step-num { width: 60px; height: 60px; font-size: 1.2rem; margin: 0; flex-shrink: 0; }
            .step-item p { max-width: none; }
        }

        /* ===== 数据统计 ===== */
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .stat-item {
            text-align: center; padding: 36px 20px;
            background: var(--color-white); border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm); border: 1px solid var(--color-border-light);
        }
        .stat-item .stat-num { font-size: 2.8rem; font-weight: 700; color: var(--color-accent); line-height: 1.1; margin-bottom: 6px; }
        .stat-item .stat-label { font-size: 0.9375rem; color: var(--color-text-weak); }

        @media (max-width: 860px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 480px) { .stat-item .stat-num { font-size: 2rem; } }

        /* ===== FAQ ===== */
        .faq-list { max-width: 780px; margin: 40px auto 0; }
        .faq-item {
            border-bottom: 1px solid var(--color-border-light);
            padding: 20px 0;
        }
        .faq-question {
            display: flex; justify-content: space-between; align-items: center;
            font-size: 1.0625rem; font-weight: 600; color: var(--color-primary);
            cursor: pointer; padding: 4px 0; transition: color var(--transition);
            background: none; width: 100%; text-align: left;
        }
        .faq-question:hover { color: var(--color-accent); }
        .faq-question i { font-size: 0.875rem; transition: transform var(--transition); color: var(--color-text-light); }
        .faq-question.open i { transform: rotate(180deg); color: var(--color-accent); }
        .faq-answer {
            max-height: 0; overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            color: var(--color-text-weak); line-height: 1.7; font-size: 0.9375rem;
        }
        .faq-answer.open { max-height: 240px; padding-top: 12px; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
            padding: 80px 0; text-align: center; position: relative; overflow: hidden;
        }
        .cta-section::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.06; mix-blend-mode: overlay;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { font-size: 2.4rem; font-weight: 700; color: var(--color-white); margin-bottom: 16px; }
        .cta-section p { font-size: 1.1rem; color: rgba(255,255,255,0.8); max-width: 560px; margin: 0 auto 32px; }
        .cta-section .cta-btn {
            display: inline-flex; align-items: center; gap: 10px;
            padding: 16px 40px; border-radius: 50px;
            background: var(--color-accent); color: var(--color-white);
            font-size: 1.0625rem; font-weight: 600;
            transition: all var(--transition); box-shadow: 0 6px 20px rgba(232,106,51,0.3);
        }
        .cta-section .cta-btn:hover { background: var(--color-accent-hover); box-shadow: 0 8px 28px rgba(232,106,51,0.4); transform: translateY(-2px); color: var(--color-white); }

        @media (max-width: 768px) {
            .cta-section { padding: 60px 0; }
            .cta-section h2 { font-size: 1.8rem; }
            .cta-section p { font-size: 1rem; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-primary-dark); color: rgba(255,255,255,0.8);
            padding: 64px 0 32px;
        }
        .site-footer .nav-logo span { -webkit-text-fill-color: var(--color-white); color: var(--color-white); }
        .site-footer .nav-logo i { color: var(--color-accent); }
        .footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand p { font-size: 0.9375rem; line-height: 1.7; margin-top: 16px; color: rgba(255,255,255,0.6); }
        .footer-col h4 { font-size: 1rem; font-weight: 600; color: var(--color-white); margin-bottom: 16px; }
        .footer-col a {
            display: block; font-size: 0.9rem; color: rgba(255,255,255,0.6);
            padding: 5px 0; transition: all var(--transition);
        }
        .footer-col a:hover { color: var(--color-accent); padding-left: 4px; }
        .footer-col a i { width: 20px; margin-right: 6px; color: var(--color-accent); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 24px; display: flex; justify-content: space-between;
            font-size: 0.8125rem; color: rgba(255,255,255,0.4); flex-wrap: wrap; gap: 12px;
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--color-accent); }

        @media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
        @media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } .footer-bottom { flex-direction: column; text-align: center; } }

        /* ===== 通用组件 ===== */
        .section-title { text-align: center; margin-bottom: 16px; }
        .section-title h2 { font-size: 2rem; font-weight: 700; color: var(--color-primary); }
        .section-title p { font-size: 1.0625rem; color: var(--color-text-weak); max-width: 580px; margin: 12px auto 0; }
        .section-divider { width: 60px; height: 4px; background: var(--color-accent); border-radius: 4px; margin: 16px auto 0; }

        .btn-primary {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 12px 32px; border-radius: 40px;
            background: var(--color-accent); color: var(--color-white);
            font-weight: 600; font-size: 1rem;
            transition: all var(--transition); box-shadow: 0 4px 14px rgba(232,106,51,0.2);
        }
        .btn-primary:hover { background: var(--color-accent-hover); box-shadow: 0 6px 20px rgba(232,106,51,0.3); transform: translateY(-2px); color: var(--color-white); }
        .btn-outline {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 12px 32px; border-radius: 40px;
            border: 2px solid var(--color-primary); color: var(--color-primary);
            font-weight: 600; font-size: 1rem; transition: all var(--transition);
        }
        .btn-outline:hover { background: var(--color-primary); color: var(--color-white); transform: translateY(-2px); }

        /* ===== 响应式微调 ===== */
        @media (max-width: 1024px) {
            .section { padding: 60px 0; }
            .heading-xl { font-size: 2.4rem; }
            .heading-lg { font-size: 1.8rem; }
        }
        @media (max-width: 768px) {
            .section { padding: 48px 0; }
            .heading-xl { font-size: 1.8rem; }
            .heading-lg { font-size: 1.5rem; }
            .container { padding: 0 20px; }
            .section-title h2 { font-size: 1.5rem; }
        }
        @media (max-width: 480px) {
            .section { padding: 36px 0; }
            .heading-xl { font-size: 1.5rem; }
            .heading-lg { font-size: 1.3rem; }
            .container { padding: 0 16px; }
        }

        /* ===== Foundation 覆盖 ===== */
        .grid-x { margin: 0; }
        .cell { padding: 0; }
        .button { transition: all var(--transition); }
        .button:hover { transform: translateY(-1px); }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --primary-dark: #0f1a3e;
            --secondary: #e8a87c;
            --secondary-light: #f0c8a8;
            --accent: #41b3a3;
            --accent-light: #6ecfc0;
            --bg-light: #f9f7f4;
            --bg-white: #ffffff;
            --text-dark: #1e1e2a;
            --text-main: #3a3a4a;
            --text-weak: #7a7a8a;
            --border-light: #e8e6e0;
            --border-medium: #d0cec8;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(26, 42, 108, 0.06);
            --shadow-md: 0 6px 24px rgba(26, 42, 108, 0.08);
            --shadow-lg: 0 14px 40px rgba(26, 42, 108, 0.12);
            --shadow-hover: 0 18px 48px rgba(26, 42, 108, 0.16);
            --transition: 0.28s cubic-bezier(0.22, 1, 0.36, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, 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;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-light);
            padding-top: var(--header-h);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-dark);
            line-height: 1.3;
            font-weight: 700;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 18px;
            }
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: background var(--transition), box-shadow var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .nav-left {
            display: flex;
            align-items: center;
            gap: 40px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.3px;
        }
        .nav-logo i {
            font-size: 26px;
            color: var(--secondary);
            transition: transform var(--transition);
        }
        .nav-logo:hover i {
            transform: rotate(-8deg) scale(1.05);
        }
        .nav-logo:hover {
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            color: var(--text-main);
            transition: background var(--transition), color var(--transition);
            position: relative;
        }
        .nav-links a:hover {
            background: rgba(26, 42, 108, 0.06);
            color: var(--primary);
        }
        .nav-links a.active {
            color: var(--primary);
            background: rgba(26, 42, 108, 0.08);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--secondary);
            border-radius: 4px;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            background: var(--primary);
            color: #fff !important;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .nav-cta:hover {
            background: var(--primary-light);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
            color: #fff !important;
        }
        .nav-cta i {
            font-size: 15px;
        }
        .nav-toggle {
            display: none;
            font-size: 26px;
            color: var(--text-dark);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(26, 42, 108, 0.06);
        }

        /* 移动端导航 */
        @media (max-width: 900px) {
            .nav-left {
                gap: 16px;
                flex: 1;
            }
            .nav-links {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(18px);
                -webkit-backdrop-filter: blur(18px);
                flex-direction: column;
                padding: 20px 24px 28px;
                gap: 6px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.3s ease;
                z-index: 999;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links a {
                padding: 14px 18px;
                width: 100%;
                border-radius: var(--radius-sm);
                font-size: 17px;
            }
            .nav-links a.active::after {
                bottom: 6px;
                width: 28px;
            }
            .nav-toggle {
                display: block;
            }
            .nav-cta span {
                display: none;
            }
        }
        @media (max-width: 520px) {
            :root {
                --header-h: 64px;
            }
            .nav-logo {
                font-size: 18px;
            }
            .nav-logo i {
                font-size: 20px;
            }
            .nav-cta {
                padding: 8px 14px;
                font-size: 13px;
            }
            .nav-cta i {
                font-size: 13px;
            }
            .nav-links {
                padding: 16px 18px 22px;
            }
            .nav-links a {
                padding: 12px 14px;
                font-size: 15px;
            }
        }

        /* ===== Banner ===== */
        .page-banner {
            position: relative;
            padding: 80px 0 90px;
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 30%;
            background-blend-mode: overlay;
            color: #fff;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 26, 62, 0.82) 30%, rgba(26, 42, 108, 0.55) 70%, rgba(65, 179, 163, 0.25) 100%);
            z-index: 1;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .page-banner h1 {
            font-size: 48px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .page-banner .banner-sub {
            font-size: 20px;
            color: rgba(255, 255, 255, 0.85);
            font-weight: 400;
            max-width: 620px;
            line-height: 1.6;
            margin-bottom: 28px;
        }
        .page-banner .banner-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px 32px;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
        }
        .page-banner .banner-meta i {
            margin-right: 6px;
            color: var(--secondary);
        }
        .page-banner .banner-meta span {
            display: inline-flex;
            align-items: center;
        }
        @media (max-width: 900px) {
            .page-banner {
                padding: 60px 0 70px;
            }
            .page-banner h1 {
                font-size: 36px;
            }
            .page-banner .banner-sub {
                font-size: 17px;
            }
        }
        @media (max-width: 520px) {
            .page-banner {
                padding: 44px 0 54px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner .banner-sub {
                font-size: 15px;
            }
            .page-banner .banner-meta {
                font-size: 13px;
                gap: 12px 20px;
            }
        }

        /* ===== Section通用 ===== */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        .section-header p {
            font-size: 17px;
            color: var(--text-weak);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .section-header .section-tag {
            display: inline-block;
            padding: 4px 18px;
            background: rgba(232, 168, 124, 0.18);
            color: var(--primary);
            border-radius: 40px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.4px;
            margin-bottom: 12px;
        }
        @media (max-width: 900px) {
            .section {
                padding: 52px 0;
            }
            .section-header h2 {
                font-size: 28px;
            }
            .section-header p {
                font-size: 15px;
            }
            .section-header {
                margin-bottom: 36px;
            }
        }
        @media (max-width: 520px) {
            .section {
                padding: 40px 0;
            }
            .section-header h2 {
                font-size: 24px;
            }
        }

        /* ===== 分类筛选 ===== */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-bottom: 8px;
        }
        .filter-bar .filter-btn {
            padding: 10px 26px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 500;
            background: var(--bg-white);
            color: var(--text-main);
            border: 1.5px solid var(--border-light);
            transition: all var(--transition);
            cursor: pointer;
            box-shadow: var(--shadow-sm);
        }
        .filter-bar .filter-btn:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .filter-bar .filter-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 14px rgba(26, 42, 108, 0.25);
        }
        @media (max-width: 520px) {
            .filter-bar .filter-btn {
                padding: 8px 18px;
                font-size: 13px;
            }
        }

        /* ===== 卡片网格 ===== */
        .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 {
                gap: 22px;
            }
            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .card-grid-2 {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 520px) {
            .card-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .card-grid-4 {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 资讯卡片 ===== */
        .news-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
            display: flex;
            flex-direction: column;
            border: 1px solid var(--border-light);
        }
        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }
        .news-card .card-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--border-light);
            position: relative;
        }
        .news-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .news-card:hover .card-img img {
            transform: scale(1.05);
        }
        .news-card .card-img .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 4px 16px;
            background: var(--primary);
            color: #fff;
            border-radius: 40px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            box-shadow: 0 2px 10px rgba(26, 42, 108, 0.2);
        }
        .news-card .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .card-body .card-date {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .news-card .card-body .card-date i {
            font-size: 12px;
        }
        .news-card .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
            line-height: 1.4;
        }
        .news-card .card-body p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
        }
        .news-card .card-body .card-link {
            font-weight: 600;
            font-size: 14px;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }
        .news-card .card-body .card-link:hover {
            gap: 12px;
            color: var(--primary-light);
        }
        .news-card .card-body .card-link i {
            font-size: 12px;
            transition: transform var(--transition);
        }
        .news-card .card-body .card-link:hover i {
            transform: translateX(4px);
        }
        @media (max-width: 520px) {
            .news-card .card-body {
                padding: 16px 18px 20px;
            }
            .news-card .card-body h3 {
                font-size: 16px;
            }
            .news-card .card-body p {
                font-size: 13px;
            }
        }

        /* ===== 图文区块 (行业洞察) ===== */
        .feature-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            margin-bottom: 40px;
        }
        .feature-block:last-child {
            margin-bottom: 0;
        }
        .feature-block .feat-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 4 / 3;
            background: var(--border-light);
        }
        .feature-block .feat-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .feature-block .feat-img:hover img {
            transform: scale(1.04);
        }
        .feature-block .feat-text h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-dark);
        }
        .feature-block .feat-text p {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .feature-block .feat-text .feat-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 28px;
            font-size: 14px;
            color: var(--text-weak);
        }
        .feature-block .feat-text .feat-meta i {
            color: var(--secondary);
            margin-right: 4px;
        }
        .feature-block .feat-text .feat-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 8px;
            padding: 10px 24px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
        }
        .feature-block .feat-text .feat-btn:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            color: #fff;
        }
        .feature-block .feat-text .feat-btn i {
            font-size: 13px;
            transition: transform var(--transition);
        }
        .feature-block .feat-text .feat-btn:hover i {
            transform: translateX(4px);
        }
        @media (max-width: 900px) {
            .feature-block {
                grid-template-columns: 1fr;
                gap: 24px;
                margin-bottom: 32px;
            }
            .feature-block .feat-img {
                aspect-ratio: 16 / 9;
            }
            .feature-block .feat-text h3 {
                font-size: 20px;
            }
        }
        @media (max-width: 520px) {
            .feature-block {
                gap: 18px;
                margin-bottom: 24px;
            }
            .feature-block .feat-text h3 {
                font-size: 18px;
            }
            .feature-block .feat-text p {
                font-size: 14px;
            }
            .feature-block .feat-text .feat-meta {
                font-size: 13px;
                gap: 10px 18px;
            }
        }

        /* ===== 案例卡片 (案例分享) ===== */
        .case-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }
        .case-card .case-img {
            aspect-ratio: 16 / 11;
            overflow: hidden;
            background: var(--border-light);
            position: relative;
        }
        .case-card .case-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .case-card:hover .case-img img {
            transform: scale(1.05);
        }
        .case-card .case-img .case-brand {
            position: absolute;
            bottom: 14px;
            left: 14px;
            padding: 6px 18px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(6px);
            border-radius: 40px;
            font-size: 13px;
            font-weight: 700;
            color: var(--text-dark);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
        }
        .case-card .case-body {
            padding: 20px 22px 24px;
        }
        .case-card .case-body h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-dark);
        }
        .case-card .case-body p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
        }
        .case-card .case-body .case-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 12px;
        }
        .case-card .case-body .case-tags span {
            padding: 3px 12px;
            background: rgba(232, 168, 124, 0.14);
            border-radius: 40px;
            font-size: 12px;
            font-weight: 500;
            color: var(--primary);
        }
        @media (max-width: 520px) {
            .case-card .case-body {
                padding: 16px 18px 20px;
            }
            .case-card .case-body h3 {
                font-size: 15px;
            }
        }

        /* ===== 趋势列表 (设计趋势) ===== */
        .trend-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px 32px;
        }
        .trend-item {
            display: flex;
            gap: 18px;
            align-items: flex-start;
            padding: 18px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .trend-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .trend-item .trend-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1;
            min-width: 44px;
            opacity: 0.7;
        }
        .trend-item .trend-content h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text-dark);
        }
        .trend-item .trend-content p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .trend-list {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .trend-item .trend-num {
                font-size: 22px;
                min-width: 36px;
            }
        }
        @media (max-width: 520px) {
            .trend-item {
                padding: 14px 16px;
                gap: 14px;
            }
            .trend-item .trend-content h4 {
                font-size: 14px;
            }
            .trend-item .trend-content p {
                font-size: 13px;
            }
        }

        /* ===== 品牌故事特色区块 ===== */
        .story-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
        }
        .story-block .story-img {
            aspect-ratio: 1 / 1;
            overflow: hidden;
            background: var(--border-light);
            min-height: 320px;
        }
        .story-block .story-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .story-block:hover .story-img img {
            transform: scale(1.04);
        }
        .story-block .story-text {
            padding: 40px 44px 40px 0;
        }
        .story-block .story-text .story-label {
            display: inline-block;
            padding: 4px 18px;
            background: rgba(65, 179, 163, 0.14);
            color: var(--accent);
            border-radius: 40px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .story-block .story-text h3 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 14px;
            color: var(--text-dark);
        }
        .story-block .story-text p {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.7;
            margin-bottom: 18px;
        }
        .story-block .story-text .story-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
        }
        .story-block .story-text .story-btn:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            color: #fff;
        }
        .story-block .story-text .story-btn i {
            transition: transform var(--transition);
        }
        .story-block .story-text .story-btn:hover i {
            transform: translateX(4px);
        }
        @media (max-width: 900px) {
            .story-block {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .story-block .story-img {
                aspect-ratio: 16 / 10;
                min-height: auto;
            }
            .story-block .story-text {
                padding: 32px 28px;
            }
            .story-block .story-text h3 {
                font-size: 24px;
            }
        }
        @media (max-width: 520px) {
            .story-block .story-text {
                padding: 24px 20px;
            }
            .story-block .story-text h3 {
                font-size: 20px;
            }
            .story-block .story-text p {
                font-size: 14px;
            }
        }

        /* ===== CTA订阅 ===== */
        .cta-section {
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 80px 0;
            color: #fff;
            text-align: center;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 26, 62, 0.8) 40%, rgba(26, 42, 108, 0.6) 70%, rgba(65, 179, 163, 0.2) 100%);
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 500px;
            margin: 0 auto 30px;
            line-height: 1.6;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form input[type="email"] {
            flex: 1;
            min-width: 220px;
            padding: 14px 22px;
            border-radius: var(--radius-sm);
            border: 1.5px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(6px);
            color: #fff;
            font-size: 15px;
            transition: border-color var(--transition), background var(--transition);
            font-family: inherit;
        }
        .cta-form input[type="email"]::placeholder {
            color: rgba(255, 255, 255, 0.55);
        }
        .cta-form input[type="email"]:focus {
            outline: none;
            border-color: var(--secondary);
            background: rgba(255, 255, 255, 0.18);
        }
        .cta-form button {
            padding: 14px 34px;
            background: var(--secondary);
            color: var(--text-dark);
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 15px;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            box-shadow: 0 4px 16px rgba(232, 168, 124, 0.3);
            font-family: inherit;
            border: none;
            cursor: pointer;
        }
        .cta-form button:hover {
            background: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(232, 168, 124, 0.35);
        }
        .cta-form button i {
            margin-right: 6px;
        }
        .cta-note {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 18px;
        }
        @media (max-width: 900px) {
            .cta-section {
                padding: 60px 0;
            }
            .cta-section h2 {
                font-size: 28px;
            }
            .cta-section p {
                font-size: 15px;
            }
        }
        @media (max-width: 520px) {
            .cta-section {
                padding: 44px 0;
            }
            .cta-section h2 {
                font-size: 24px;
            }
            .cta-form input[type="email"] {
                min-width: 160px;
                padding: 12px 18px;
                font-size: 14px;
            }
            .cta-form button {
                padding: 12px 24px;
                font-size: 14px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--text-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 0;
        }
        .site-footer .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .nav-logo {
            color: #fff;
            font-size: 22px;
            margin-bottom: 12px;
            display: inline-flex;
        }
        .footer-brand .nav-logo i {
            color: var(--secondary);
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            max-width: 300px;
            margin-top: 8px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            padding: 5px 0;
            transition: color var(--transition), padding-left var(--transition);
        }
        .footer-col a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .footer-col a i {
            width: 20px;
            color: var(--secondary);
            margin-right: 6px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding: 22px 0 28px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--secondary);
        }
        .footer-bottom span a {
            margin: 0 4px;
        }
        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px 28px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .site-footer {
                padding: 40px 0 0;
            }
            .site-footer .container {
                padding: 0 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                padding-bottom: 32px;
            }
            .footer-brand .nav-logo {
                font-size: 18px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                padding: 18px 0 22px;
                font-size: 12px;
            }
        }

        /* ===== 辅助类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 16px;
        }
        .mt-2 {
            margin-top: 32px;
        }
        .mb-1 {
            margin-bottom: 16px;
        }
        .mb-2 {
            margin-bottom: 32px;
        }
        .gap-1 {
            gap: 16px;
        }

        /* ===== Foundation 网格覆盖 ===== */
        .grid-container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 768px) {
            .grid-container {
                padding-left: 18px;
                padding-right: 18px;
            }
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 900px) {
            .hide-for-md-down {
                display: none !important;
            }
        }
        @media (min-width: 901px) {
            .hide-for-md-up {
                display: none !important;
            }
        }