/* roulang page: index */
:root {
            --primary: #0F3A2F;
            --primary-dark: #0A2A22;
            --secondary: #C8956C;
            --secondary-dark: #B07F52;
            --background: #F7F3EC;
            --surface: #FFFFFF;
            --alt-surface: #ECEFEA;
            --text-primary: #10261E;
            --text-secondary: #5C6B63;
            --border: #E0D9CD;
            --border-copper: rgba(200, 149, 108, 0.35);
            --shadow-sm: 0 2px 12px rgba(15, 58, 47, 0.06);
            --shadow-md: 0 8px 24px rgba(15, 58, 47, 0.12);
            --radius: 10px;
            --radius-sm: 6px;
            --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --container-width: 1200px;
            --section-padding: 80px 0;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--background);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--secondary);
            text-decoration: none;
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
        }

        a:hover {
            color: var(--secondary-dark);
        }

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            outline: none;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(200, 149, 108, 0.2);
        }

        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 导航栏 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(247, 243, 236, 0.98);
            border-bottom: 1px solid var(--border-copper);
            height: 72px;
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: var(--text-primary);
        }

        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            border-radius: 8px;
            letter-spacing: 1px;
        }

        .logo-text {
            font-family: var(--font-serif);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .main-nav a {
            color: var(--text-primary);
            font-size: 15px;
            font-weight: 500;
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
        }

        .main-nav a:hover,
        .main-nav a.active {
            color: var(--secondary);
        }

        .main-nav a.active::after,
        .main-nav a:hover::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--secondary);
            border-radius: 1px;
        }

        .header-cta {
            display: inline-block;
            background-color: var(--secondary);
            color: #fff;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.5px;
            transition: background-color 0.2s ease;
        }

        .header-cta:hover {
            background-color: var(--secondary-dark);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
            transition: transform 0.25s ease, opacity 0.25s ease;
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Hero */
        .hero {
            position: relative;
            background-color: var(--background);
            background-image: linear-gradient(rgba(15, 58, 47, 0.04) 1px, transparent 1px),
                              linear-gradient(90deg, rgba(15, 58, 47, 0.04) 1px, transparent 1px);
            background-size: 32px 32px;
            padding: 80px 0 70px;
        }

        .hero-wrapper {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content h1 {
            font-family: var(--font-serif);
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.35;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 30px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 26px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.5px;
            transition: all 0.25s ease;
            border: 1px solid transparent;
            cursor: pointer;
        }

        .btn-primary {
            background-color: var(--secondary);
            color: #fff;
            border-color: var(--secondary);
        }

        .btn-primary:hover {
            background-color: var(--secondary-dark);
            border-color: var(--secondary-dark);
            color: #fff;
            transform: translateY(-1px);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--secondary);
            border-color: var(--secondary);
        }

        .btn-secondary:hover {
            background-color: rgba(200, 149, 108, 0.1);
            color: var(--secondary-dark);
            transform: translateY(-1px);
        }

        .hero-image {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 4 / 3;
        }
        .hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 12px;
        }

        /* Section 通用 */
        section {
            padding: var(--section-padding);
        }

        .section-alt {
            background-color: var(--alt-surface);
        }

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

        .section-title {
            font-family: var(--font-serif);
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1rem;
            max-width: 720px;
            margin: 0 auto;
        }

        /* 数据信任条 */
        .trust-bar {
            background-color: var(--primary);
            padding: 32px 0;
        }

        .trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }

        .trust-item .trust-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.2;
            font-family: var(--font-serif);
        }

        .trust-item .trust-label {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.9rem;
            margin-top: 6px;
        }

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

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .service-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .service-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--border-copper);
        }

        .service-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            background-color: rgba(15, 58, 47, 0.08);
            border-radius: 8px;
            margin-bottom: 18px;
            color: var(--primary);
            font-weight: 700;
            font-size: 1.3rem;
        }

        .service-card h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
            color: var(--primary);
        }

        .service-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            flex-grow: 1;
            margin-bottom: 16px;
        }

        .card-link {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--secondary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .card-link:hover {
            gap: 8px;
        }

        /* 杠杆方案对比 */
        .leverage-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 24px;
            transition: all 0.3s ease;
            position: relative;
            height: 100%;
            box-shadow: var(--shadow-sm);
        }

        .leverage-card.featured {
            border: 2px solid var(--secondary);
            box-shadow: 0 8px 24px rgba(200, 149, 108, 0.18);
        }

        .leverage-card h3 {
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 16px;
            text-align: center;
        }

        .leverage-card ul {
            list-style: none;
            padding: 0;
            margin-top: 16px;
        }

        .leverage-card ul li {
            padding: 10px 0;
            border-bottom: 1px solid #f0ede8;
            color: var(--text-secondary);
            font-size: 0.95rem;
            display: flex;
            gap: 8px;
        }

        .leverage-card ul li::before {
            content: '●';
            color: var(--secondary);
            font-size: 0.7rem;
            flex-shrink: 0;
            margin-top: 6px;
        }

        .leverage-card .suggestion {
            margin-top: 18px;
            background-color: var(--alt-surface);
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            color: var(--primary);
            font-weight: 500;
        }

        /* 流程步骤 */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            position: relative;
        }

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

        .step-circle {
            width: 68px;
            height: 68px;
            border-radius: 50%;
            background-color: var(--secondary);
            color: #fff;
            font-size: 1.5rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            box-shadow: 0 4px 14px rgba(200, 149, 108, 0.3);
        }

        .step-item h4 {
            color: var(--primary);
            margin-bottom: 8px;
            font-size: 1.1rem;
        }

        .step-item p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        /* 新手入门 */
        .beginner-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .beginner-steps {
            list-style: none;
            counter-reset: step;
        }

        .beginner-steps li {
            counter-increment: step;
            display: flex;
            gap: 16px;
            margin-bottom: 24px;
            align-items: flex-start;
        }

        .beginner-steps li::before {
            content: counter(step);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background-color: var(--primary);
            color: #fff;
            border-radius: 50%;
            font-weight: 700;
            font-size: 1rem;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .beginner-steps li h5 {
            color: var(--primary);
            font-size: 1.05rem;
            margin-bottom: 4px;
        }

        .beginner-steps li p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        .beginner-image {
            aspect-ratio: 4 / 3;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .beginner-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 12px;
        }

        /* 资讯列表 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .news-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .news-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .news-card .news-body {
            padding: 22px 20px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .news-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }

        .tag {
            display: inline-block;
            background-color: rgba(200, 149, 108, 0.15);
            color: var(--secondary-dark);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        .news-card h4 {
            color: var(--primary);
            font-size: 1.1rem;
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .news-card p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            flex-grow: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .empty-state {
            background: var(--surface);
            border: 1px dashed var(--border-copper);
            border-radius: var(--radius);
            padding: 40px 24px;
            text-align: center;
            color: var(--text-secondary);
            font-size: 0.95rem;
            grid-column: 1 / -1;
        }

        /* 行情解读 */
        .market-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-left: 4px solid var(--secondary);
            border-radius: var(--radius);
            padding: 24px;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-sm);
        }

        .market-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }
        .market-card .market-date {
            color: var(--secondary);
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 8px;
        }
        .market-card h4 {
            color: var(--primary);
            margin-bottom: 10px;
            font-size: 1.15rem;
        }
        .market-card p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .market-card a {
            font-weight: 600;
            margin-top: 12px;
            display: inline-block;
        }

        /* 操盘技巧 */
        .skills-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .skill-item {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 24px 16px;
            text-align: center;
            transition: all 0.25s ease;
            border: 1px solid transparent;
            cursor: pointer;
        }
        .skill-item:hover {
            border-color: var(--border-copper);
            background-color: #fff;
        }
        .skill-item .skill-icon {
            font-size: 2rem;
            margin-bottom: 12px;
        }
        .skill-item h5 {
            color: var(--primary);
            font-size: 1rem;
            margin-bottom: 6px;
        }
        .skill-item p {
            color: var(--text-secondary);
            font-size: 0.8rem;
            line-height: 1.6;
        }

        /* 用户见证 */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .testimonial-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .testimonial-header {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 16px;
        }
        .testimonial-avatar {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            overflow: hidden;
            background-color: var(--alt-surface);
        }
        .testimonial-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 50%;
        }
        .testimonial-user {
            font-weight: 600;
            color: var(--primary);
        }
        .testimonial-stars {
            color: var(--secondary);
            font-size: 1rem;
            letter-spacing: 2px;
        }
        .testimonial-text {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.25s ease;
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            color: var(--primary);
            font-size: 1rem;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: background-color 0.2s ease;
        }
        .faq-question:hover {
            background-color: rgba(200, 149, 108, 0.06);
        }
        .faq-icon {
            font-size: 1.2rem;
            color: var(--secondary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
            margin-left: 12px;
        }
        .faq-answer {
            max-height: 0;
            padding: 0 22px;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            background-color: var(--alt-surface);
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.8;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 18px 22px;
        }
        .faq-item.active .faq-icon {
            transform: rotate(180deg);
        }

        /* 转化区 */
        .cta-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 48px;
            box-shadow: var(--shadow-sm);
        }
        .cta-form label {
            display: block;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .cta-form input,
        .cta-form select {
            width: 100%;
            padding: 12px 14px;
            background-color: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 18px;
            font-size: 0.95rem;
        }
        .cta-form input:focus,
        .cta-form select:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(200, 149, 108, 0.15);
        }
        .cta-assurances {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .cta-assurances h3 {
            font-family: var(--font-serif);
            color: var(--primary);
            font-size: 1.6rem;
            margin-bottom: 20px;
        }
        .assurance-list {
            list-style: none;
            margin-bottom: 20px;
        }
        .assurance-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 0;
            color: var(--text-primary);
            font-weight: 500;
            font-size: 1rem;
        }
        .assurance-list li::before {
            content: '✓';
            color: var(--secondary);
            font-weight: 700;
            font-size: 1.2rem;
        }
        .form-success {
            display: none;
            margin-top: 12px;
            padding: 12px 16px;
            background-color: rgba(15, 58, 47, 0.08);
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
        }

        /* 合规区 */
        .compliance-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            justify-content: center;
            margin-bottom: 32px;
        }
        .badge-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            color: var(--primary);
            font-size: 0.95rem;
        }
        .badge-item .badge-dot {
            width: 12px;
            height: 12px;
            background-color: var(--secondary);
            border-radius: 50%;
        }
        .risk-warning {
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
            color: var(--text-secondary);
            font-size: 0.82rem;
            line-height: 1.8;
            background-color: var(--alt-surface);
            padding: 24px;
            border-radius: var(--radius);
            border: 1px solid var(--border);
        }

        /* 页脚 */
        .site-footer {
            background-color: var(--primary);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 40px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1.05rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            transition: color 0.2s ease;
        }
        .footer-col a:hover {
            color: var(--secondary);
        }
        .footer-contact p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 8px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .grid-4, .grid-3, .news-grid, .testimonial-grid, .skills-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .trust-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-padding: 40px 0;
            }
            .site-header {
                height: auto;
                padding: 12px 0;
                position: relative;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                order: 3;
                background-color: var(--background);
                padding: 20px 0;
                gap: 12px;
                border-top: 1px solid var(--border);
                margin-top: 12px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 8px 0;
                width: 100%;
            }
            .header-cta {
                display: none;
            }
            .hero-wrapper,
            .beginner-wrapper,
            .cta-wrapper {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-content h1 {
                font-size: 1.9rem;
            }
            .grid-4, .grid-3, .news-grid, .testimonial-grid, .skills-grid,
            .steps-grid, .trust-grid, .footer-grid {
                grid-template-columns: 1fr;
            }
            .trust-item .trust-number {
                font-size: 1.8rem;
            }
            .market-card:hover {
                transform: none;
            }
            .cta-wrapper {
                padding: 28px 20px;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.6rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .btn {
                padding: 10px 20px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }
            .hero-actions {
                flex-direction: column;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0F3A2F;
            --primary-dark: #0A2A22;
            --secondary: #C8956C;
            --secondary-dark: #B07F52;
            --background: #F7F3EC;
            --surface: #FFFFFF;
            --alt-surface: #ECEFEA;
            --text-primary: #10261E;
            --text-secondary: #5C6B63;
            --border: #E0D9CD;
            --border-copper: rgba(200, 149, 108, 0.35);
            --shadow-sm: 0 2px 12px rgba(15, 58, 47, 0.06);
            --shadow-md: 0 8px 24px rgba(15, 58, 47, 0.12);
            --radius: 10px;
            --radius-sm: 6px;
            --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --container-width: 1200px;
            --section-padding: 40px 0;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--background);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--secondary);
            text-decoration: none;
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
        }

        a:hover {
            color: var(--secondary-dark);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            outline: none;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(200, 149, 108, 0.2);
        }

        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Bootstrap 覆盖 */
        .btn:focus {
            box-shadow: none;
        }

        /* 导航栏 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(247, 243, 236, 0.98);
            border-bottom: 1px solid var(--border-copper);
            height: 72px;
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: var(--text-primary);
        }

        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            border-radius: 8px;
            letter-spacing: 1px;
            flex-shrink: 0;
        }

        .logo-text {
            font-family: var(--font-serif);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .main-nav a {
            color: var(--text-primary);
            font-size: 15px;
            font-weight: 500;
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
        }

        .main-nav a:hover,
        .main-nav a.active {
            color: var(--secondary);
        }

        .main-nav a.active::after,
        .main-nav a:hover::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--secondary);
            border-radius: 1px;
        }

        .header-cta {
            display: inline-block;
            background-color: var(--secondary);
            color: #fff;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.5px;
            transition: background-color 0.2s ease;
            white-space: nowrap;
        }

        .header-cta:hover {
            background-color: var(--secondary-dark);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
            transition: transform 0.25s ease, opacity 0.25s ease;
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* 分类头部区 */
        .category-hero {
            background-color: var(--alt-surface);
            padding: 48px 0 40px;
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 360px;
            height: 100%;
            background-image: url('/assets/images/a88d81a5fbda53a3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            pointer-events: none;
            border-radius: 0;
        }

        .category-hero-content {
            position: relative;
            z-index: 1;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 18px;
        }

        .breadcrumb-nav a {
            color: var(--text-secondary);
        }

        .breadcrumb-nav a:hover {
            color: var(--secondary);
        }

        .breadcrumb-sep {
            color: var(--border);
            font-size: 12px;
        }

        .category-hero h1 {
            font-family: var(--font-serif);
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 14px;
            line-height: 1.3;
            letter-spacing: 0.5px;
        }

        .category-hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.85;
            margin: 0;
        }

        /* 分类要点区 */
        .category-points {
            padding: var(--section-padding);
            background-color: var(--surface);
            border-bottom: 1px solid var(--border);
        }

        .points-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .point-card {
            background-color: var(--background);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 20px;
            text-align: center;
            transition: box-shadow 0.25s ease, transform 0.25s ease;
        }

        .point-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .point-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background-color: var(--primary);
            color: #fff;
            font-size: 20px;
            margin-bottom: 14px;
            font-weight: 700;
        }

        .point-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 8px;
        }

        .point-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        /* 文章列表主体区 */
        .content-list-section {
            padding: var(--section-padding);
            background-color: var(--background);
        }

        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .section-header h2 {
            font-family: var(--font-serif);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            margin: 0;
            letter-spacing: 0.3px;
        }

        .section-header .view-more {
            font-size: 14px;
            font-weight: 500;
            color: var(--secondary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .section-header .view-more:hover {
            color: var(--secondary-dark);
        }

        .content-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .content-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 22px 24px;
            transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
            position: relative;
            overflow: hidden;
        }

        .content-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background-color: var(--secondary);
            border-radius: 2px 0 0 2px;
            opacity: 0;
            transition: opacity 0.25s ease;
        }

        .content-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--border-copper);
        }

        .content-card:hover::before {
            opacity: 1;
        }

        .content-card-link {
            display: block;
            text-decoration: none;
            color: inherit;
            position: relative;
            z-index: 1;
        }

        .content-card-link:hover {
            color: inherit;
        }

        .content-meta-row {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .content-tag {
            display: inline-block;
            background-color: var(--alt-surface);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            padding: 2px 10px;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }

        .content-date {
            font-size: 13px;
            color: var(--text-secondary);
        }

        .content-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 8px;
            line-height: 1.5;
            letter-spacing: 0.2px;
            transition: color 0.2s ease;
        }

        .content-card:hover h3 {
            color: var(--secondary);
        }

        .content-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.75;
        }

        /* 空态 */
        .empty-state {
            text-align: center;
            padding: 40px 20px;
            background-color: var(--surface);
            border: 1px dashed var(--border);
            border-radius: var(--radius);
            color: var(--text-secondary);
            font-size: 15px;
        }

        /* 热门文章横栏区 */
        .popular-section {
            padding: var(--section-padding);
            background-color: var(--surface);
            border-bottom: 1px solid var(--border);
        }

        .popular-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .popular-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 18px;
            background-color: var(--background);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

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

        .popular-index {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background-color: var(--secondary);
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .popular-item a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            line-height: 1.5;
            flex: 1;
        }

        .popular-item a:hover {
            color: var(--secondary);
        }

        /* 相关专题入口区 */
        .related-topics {
            padding: var(--section-padding);
            background-color: var(--background);
            border-bottom: 1px solid var(--border);
        }

        .topics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .topic-card {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 10px;
            padding: 22px 20px;
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            text-decoration: none;
            color: var(--text-primary);
            transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
        }

        .topic-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--border-copper);
            color: var(--text-primary);
        }

        .topic-card .topic-arrow {
            align-self: flex-end;
            color: var(--secondary);
            font-size: 20px;
            transition: transform 0.25s ease;
        }

        .topic-card:hover .topic-arrow {
            transform: translateX(4px);
        }

        .topic-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0;
        }

        .topic-card p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.65;
        }

        /* 订阅 CTA 区 */
        .subscribe-section {
            padding: var(--section-padding);
            background-color: var(--alt-surface);
        }

        .subscribe-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            background-color: var(--surface);
            border: 1px solid var(--border-copper);
            border-radius: var(--radius);
            padding: 28px 32px;
            flex-wrap: wrap;
        }

        .subscribe-text h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin: 0 0 6px;
        }

        .subscribe-text p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-shrink: 0;
        }

        .subscribe-form input {
            width: 260px;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background-color: var(--background);
            font-size: 14px;
            color: var(--text-primary);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .subscribe-form input::placeholder {
            color: #9AA8A0;
        }

        .subscribe-form input:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(200, 149, 108, 0.2);
        }

        .btn-subscribe {
            display: inline-block;
            background-color: var(--secondary);
            color: #fff;
            padding: 12px 24px;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 0.3px;
            cursor: pointer;
            transition: background-color 0.2s ease;
            white-space: nowrap;
        }

        .btn-subscribe:hover {
            background-color: var(--secondary-dark);
            color: #fff;
        }

        /* 返回入口区 */
        .back-section {
            padding: 32px 0 56px;
            background-color: var(--background);
        }

        .back-buttons {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background-color: transparent;
            color: var(--secondary);
            border: 1px solid var(--secondary);
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            transition: background-color 0.2s ease, color 0.2s ease;
        }

        .btn-back:hover {
            background-color: rgba(200, 149, 108, 0.1);
            color: var(--secondary-dark);
        }

        .btn-text-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--secondary);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 4px;
            border-bottom: 1px solid var(--border-copper);
            transition: color 0.2s ease, border-color 0.2s ease;
        }

        .btn-text-link:hover {
            color: var(--secondary-dark);
            border-bottom-color: var(--secondary);
        }

        /* 页脚 */
        .site-footer {
            background-color: var(--primary-dark);
            color: #D8DEDB;
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 16px;
            letter-spacing: 0.5px;
        }

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: #B8C4BE;
            font-size: 14px;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .footer-col ul li a:hover {
            color: var(--secondary);
        }

        .footer-contact p {
            font-size: 14px;
            color: #B8C4BE;
            margin: 0 0 8px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 18px;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: #8A9A92;
            margin: 0;
            letter-spacing: 0.3px;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 18px;
            }
            .main-nav a {
                font-size: 14px;
            }
            .points-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .popular-list {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                height: auto;
                min-height: 64px;
                padding: 12px 0;
            }
            .header-inner {
                flex-wrap: wrap;
                gap: 10px;
            }
            .nav-toggle {
                display: flex;
                order: 3;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                width: 100%;
                order: 10;
                padding: 16px 0 8px;
                border-top: 1px solid var(--border);
                background-color: var(--background);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                display: block;
                width: 100%;
                padding: 12px 0;
                font-size: 15px;
                border-bottom: 1px solid rgba(224, 217, 205, 0.5);
            }
            .main-nav a.active::after,
            .main-nav a:hover::after {
                display: none;
            }
            .header-cta {
                order: 2;
                padding: 8px 16px;
                font-size: 14px;
            }
            .logo-text {
                font-size: 1.15rem;
            }
            .logo-mark {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }
            .category-hero {
                padding: 32px 0 28px;
            }
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .category-hero-desc {
                font-size: 14px;
            }
            .category-hero::before {
                width: 200px;
                opacity: 0.08;
            }
            .points-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .point-card {
                padding: 18px 16px;
            }
            .content-list {
                gap: 12px;
            }
            .content-card {
                padding: 18px 16px;
            }
            .content-card h3 {
                font-size: 16px;
            }
            .topics-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .subscribe-bar {
                padding: 20px 16px;
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }
            .subscribe-form {
                width: 100%;
                flex-direction: column;
            }
            .subscribe-form input {
                width: 100%;
            }
            .btn-subscribe {
                width: 100%;
                text-align: center;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .back-section {
                padding: 24px 0 40px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .section-header h2 {
                font-size: 1.35rem;
            }
            .category-hero h1 {
                font-size: 1.35rem;
            }
            .back-buttons {
                flex-direction: column;
                align-items: flex-start;
            }
            .btn-back {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: article */
:root {
            --primary: #0F3A2F;
            --primary-dark: #0A2A22;
            --secondary: #C8956C;
            --secondary-dark: #B07F52;
            --background: #F7F3EC;
            --surface: #FFFFFF;
            --alt-surface: #ECEFEA;
            --text-primary: #10261E;
            --text-secondary: #5C6B63;
            --border: #E0D9CD;
            --border-copper: rgba(200, 149, 108, 0.35);
            --shadow-sm: 0 2px 12px rgba(15, 58, 47, 0.06);
            --shadow-md: 0 8px 24px rgba(15, 58, 47, 0.12);
            --radius: 10px;
            --radius-sm: 6px;
            --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --container-width: 1200px;
            --section-padding: 40px 0;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--background);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        a {
            color: var(--secondary);
            text-decoration: none;
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
        }
        a:hover {
            color: var(--secondary-dark);
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            outline: none;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(200, 149, 108, 0.2);
        }
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(247, 243, 236, 0.98);
            border-bottom: 1px solid var(--border-copper);
            height: 72px;
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: var(--text-primary);
            flex-shrink: 0;
        }
        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            border-radius: 8px;
            letter-spacing: 1px;
        }
        .logo-text {
            font-family: var(--font-serif);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 24px;
            margin: 0 auto;
        }
        .main-nav a {
            color: var(--text-primary);
            font-size: 15px;
            font-weight: 500;
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--secondary);
        }
        .main-nav a.active::after,
        .main-nav a:hover::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--secondary);
            border-radius: 1px;
        }
        .header-cta {
            display: inline-block;
            background-color: var(--secondary);
            color: #fff;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.5px;
            transition: background-color 0.2s ease;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .header-cta:hover {
            background-color: var(--secondary-dark);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
            transition: transform 0.25s ease, opacity 0.25s ease;
        }
        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        main {
            min-height: 50vh;
        }
        .breadcrumb-wrap {
            background-color: var(--alt-surface);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--secondary);
        }
        .breadcrumb .sep {
            color: var(--border);
            user-select: none;
        }
        .breadcrumb .current {
            color: var(--text-primary);
            font-weight: 500;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 300px;
        }
        .article-hero {
            background-color: var(--background);
            padding: 48px 0 32px;
            border-bottom: 1px solid var(--border);
        }
        .article-hero-inner {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }
        .article-hero h1 {
            font-family: var(--font-serif);
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 16px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 14px;
            color: var(--text-secondary);
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border-copper);
        }
        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta .meta-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--secondary);
            display: inline-block;
        }
        .article-meta .category-tag {
            background-color: var(--primary);
            color: #fff;
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
        }
        .article-body-section {
            padding: 40px 0 56px;
            background-color: var(--background);
        }
        .article-body {
            max-width: 720px;
            margin: 0 auto;
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-primary);
        }
        .article-body p {
            margin-bottom: 1.5em;
        }
        .article-body h2,
        .article-body h3,
        .article-body h4 {
            font-family: var(--font-serif);
            color: var(--primary);
            margin-top: 2em;
            margin-bottom: 1em;
            line-height: 1.4;
            font-weight: 700;
            padding-left: 14px;
            border-left: 3px solid var(--secondary);
        }
        .article-body h2 {
            font-size: 1.5rem;
        }
        .article-body h3 {
            font-size: 1.25rem;
        }
        .article-body h4 {
            font-size: 1.1rem;
        }
        .article-body img {
            margin: 1.5em 0;
            width: 100%;
            height: auto;
            border-radius: var(--radius);
        }
        .article-body blockquote {
            background-color: var(--alt-surface);
            border-left: 4px solid var(--secondary);
            padding: 16px 20px;
            margin: 1.5em 0;
            border-radius: 0 var(--radius) var(--radius) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body ul,
        .article-body ol {
            margin: 1em 0 1.5em;
            padding-left: 1.5em;
        }
        .article-body li {
            margin-bottom: 0.5em;
        }
        .article-body a {
            color: var(--secondary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-body a:hover {
            color: var(--secondary-dark);
        }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5em 0;
            font-size: 15px;
        }
        .article-body table th,
        .article-body table td {
            padding: 10px 14px;
            border: 1px solid var(--border);
            text-align: left;
        }
        .article-body table th {
            background-color: var(--alt-surface);
            font-weight: 600;
            color: var(--primary);
        }
        .article-body pre {
            background-color: #1a1f1d;
            color: #e0e0e0;
            padding: 16px;
            border-radius: var(--radius-sm);
            overflow-x: auto;
            font-size: 14px;
            line-height: 1.6;
            margin: 1.5em 0;
        }
        .article-body code {
            background-color: var(--alt-surface);
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--primary);
        }
        .article-disclaimer {
            padding: 32px 0;
            background-color: var(--alt-surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .article-disclaimer-inner {
            max-width: 720px;
            margin: 0 auto;
            background-color: #f0e9df;
            border: 1px solid var(--border-copper);
            border-radius: var(--radius);
            padding: 20px 24px;
        }
        .article-disclaimer h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .article-disclaimer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .related-section {
            padding: 48px 0 56px;
            background-color: var(--background);
        }
        .section-title {
            font-family: var(--font-serif);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            text-align: center;
            margin-bottom: 32px;
            position: relative;
        }
        .section-title::after {
            content: '';
            display: block;
            width: 48px;
            height: 3px;
            background-color: var(--secondary);
            margin: 12px auto 0;
            border-radius: 2px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            max-width: 960px;
            margin: 0 auto;
        }
        .related-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }
        .related-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .related-card .card-image {
            height: 160px;
            overflow: hidden;
            background-color: var(--alt-surface);
        }
        .related-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card .card-body {
            padding: 16px 18px;
        }
        .related-card .card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-excerpt {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-date {
            font-size: 12px;
            color: var(--text-secondary);
        }
        .return-section {
            padding: 32px 0 56px;
            background-color: var(--background);
        }
        .return-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            max-width: 600px;
            margin: 0 auto;
        }
        .btn {
            display: inline-block;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.3px;
            cursor: pointer;
            transition: all 0.2s ease;
            text-align: center;
            border: none;
        }
        .btn-outline {
            background-color: transparent;
            border: 1px solid var(--secondary);
            color: var(--secondary);
        }
        .btn-outline:hover {
            background-color: rgba(200, 149, 108, 0.1);
            color: var(--secondary-dark);
            border-color: var(--secondary-dark);
        }
        .btn-text {
            background-color: transparent;
            border: none;
            color: var(--secondary);
            text-decoration: underline;
            text-underline-offset: 2px;
            padding: 12px 8px;
        }
        .btn-text:hover {
            color: var(--secondary-dark);
            text-decoration-thickness: 2px;
        }
        .empty-state {
            text-align: center;
            padding: 60px 20px;
            background-color: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            max-width: 600px;
            margin: 0 auto;
        }
        .empty-state p {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }
        .site-footer {
            background-color: var(--primary);
            color: #f0e9df;
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: #d0ccc4;
            font-size: 14px;
            transition: color 0.2s ease;
        }
        .footer-col ul li a:hover {
            color: var(--secondary);
        }
        .footer-contact p {
            font-size: 14px;
            color: #d0ccc4;
            margin-bottom: 8px;
            line-height: 1.6;
        }
        .footer-bottom {
            border-top: 1px solid rgba(200, 149, 108, 0.2);
            padding-top: 20px;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 13px;
            color: #a8a49c;
            line-height: 1.6;
        }
        @media (max-width: 1024px) {
            .main-nav {
                gap: 16px;
            }
            .main-nav a {
                font-size: 14px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 768px) {
            .site-header {
                height: auto;
                min-height: 60px;
                padding: 10px 0;
            }
            .header-inner {
                flex-wrap: wrap;
                position: relative;
            }
            .nav-toggle {
                display: flex;
                order: 2;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                width: 100%;
                order: 3;
                padding: 12px 0;
                background-color: var(--surface);
                border-radius: var(--radius);
                margin-top: 12px;
                box-shadow: var(--shadow-md);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 16px;
                border-bottom: 1px solid var(--border);
                font-size: 15px;
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .header-cta {
                order: 1;
                padding: 8px 16px;
                font-size: 14px;
            }
            .article-hero {
                padding: 32px 0 24px;
            }
            .article-hero h1 {
                font-size: 1.5rem;
            }
            .article-meta {
                gap: 12px;
                font-size: 13px;
            }
            .article-body {
                font-size: 15px;
            }
            .article-body h2 {
                font-size: 1.3rem;
            }
            .article-body h3 {
                font-size: 1.15rem;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .breadcrumb .current {
                max-width: 180px;
            }
        }
        @media (max-width: 520px) {
            .article-hero h1 {
                font-size: 1.3rem;
            }
            .article-meta {
                flex-direction: column;
                gap: 6px;
            }
            .article-body {
                font-size: 14px;
                line-height: 1.75;
            }
            .related-card .card-image {
                height: 140px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }
            .return-buttons {
                gap: 8px;
            }
            .logo-text {
                font-size: 1.1rem;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #0F3A2F;
            --primary-dark: #0A2A22;
            --secondary: #C8956C;
            --secondary-dark: #B07F52;
            --background: #F7F3EC;
            --surface: #FFFFFF;
            --alt-surface: #ECEFEA;
            --text-primary: #10261E;
            --text-secondary: #5C6B63;
            --border: #E0D9CD;
            --border-copper: rgba(200, 149, 108, 0.35);
            --shadow-sm: 0 2px 12px rgba(15, 58, 47, 0.06);
            --shadow-md: 0 8px 24px rgba(15, 58, 47, 0.12);
            --radius: 10px;
            --radius-sm: 6px;
            --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --container-width: 1200px;
            --section-padding: 80px 0;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--background);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--secondary);
            text-decoration: none;
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
        }

        a:hover {
            color: var(--secondary-dark);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            outline: none;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(200, 149, 108, 0.2);
        }

        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 导航栏 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(247, 243, 236, 0.98);
            border-bottom: 1px solid var(--border-copper);
            height: 72px;
            display: flex;
            align-items: center;
            backdrop-filter: blur(8px);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: var(--text-primary);
            flex-shrink: 0;
        }

        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            border-radius: 8px;
            letter-spacing: 1px;
            flex-shrink: 0;
        }

        .logo-text {
            font-family: var(--font-serif);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .main-nav a {
            color: var(--text-primary);
            font-size: 14px;
            font-weight: 500;
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
        }

        .main-nav a:hover,
        .main-nav a.active {
            color: var(--secondary);
        }

        .main-nav a.active::after,
        .main-nav a:hover::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--secondary);
            border-radius: 1px;
        }

        .header-cta {
            display: inline-block;
            background-color: var(--secondary);
            color: #fff;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 0.5px;
            transition: background-color 0.2s ease;
            flex-shrink: 0;
            white-space: nowrap;
        }

        .header-cta:hover {
            background-color: var(--secondary-dark);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
            transition: transform 0.25s ease, opacity 0.25s ease;
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* 面包屑 */
        .breadcrumb-section {
            background-color: var(--alt-surface);
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            list-style: none;
            flex-wrap: wrap;
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb li:not(:last-child)::after {
            content: '>';
            color: var(--border);
            font-size: 12px;
        }

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

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

        .breadcrumb .current {
            color: var(--secondary);
            font-weight: 600;
        }

        /* 分类头部区 */
        .category-hero {
            background-color: var(--alt-surface);
            padding: 64px 0 56px;
            border-bottom: 1px solid var(--border);
        }

        .category-hero-wrapper {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        .category-hero-content h1 {
            font-family: var(--font-serif);
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            line-height: 1.4;
            letter-spacing: 1px;
        }

        .category-hero-content .hero-sub {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 560px;
        }

        .category-hero-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .category-hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius);
        }

        /* 要点区 */
        .key-points {
            padding: var(--section-padding);
            background-color: var(--background);
        }

        .key-points-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .key-point-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
            text-align: center;
        }

        .key-point-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--border-copper);
        }

        .key-point-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            background-color: var(--alt-surface);
            border-radius: 50%;
            margin-bottom: 16px;
            font-size: 1.4rem;
            color: var(--secondary);
            font-weight: 700;
        }

        .key-point-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .key-point-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* 方案对比区 */
        .plan-comparison {
            padding: var(--section-padding);
            background-color: var(--alt-surface);
        }

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

        .section-header h2 {
            font-family: var(--font-serif);
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .section-header p {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
        }

        .plan-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .plan-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 28px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
            position: relative;
            overflow: hidden;
        }

        .plan-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .plan-card.featured {
            border-color: var(--secondary);
            box-shadow: 0 4px 20px rgba(200, 149, 108, 0.18);
        }

        .plan-card.featured::before {
            content: '推荐方案';
            position: absolute;
            top: 16px;
            right: -32px;
            background-color: var(--secondary);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 36px;
            transform: rotate(45deg);
            letter-spacing: 1px;
        }

        .plan-badge {
            display: inline-block;
            background-color: var(--alt-surface);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .plan-card.featured .plan-badge {
            background-color: rgba(200, 149, 108, 0.15);
            color: var(--secondary-dark);
        }

        .plan-ratio {
            font-family: var(--font-serif);
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.2;
        }

        .plan-card.featured .plan-ratio {
            color: var(--secondary-dark);
        }

        .plan-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .plan-card ul {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }

        .plan-card ul li {
            font-size: 0.9rem;
            color: var(--text-primary);
            padding: 6px 0;
            padding-left: 20px;
            position: relative;
            border-bottom: 1px solid rgba(224, 217, 205, 0.5);
        }

        .plan-card ul li:last-child {
            border-bottom: none;
        }

        .plan-card ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 8px;
            height: 8px;
            background-color: var(--secondary);
            border-radius: 50%;
        }

        /* 适用场景区 */
        .scenarios {
            padding: var(--section-padding);
            background-color: var(--background);
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .scenario-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.25s ease, transform 0.25s ease;
        }

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

        .scenario-card .scenario-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            border-radius: var(--radius) var(--radius) 0 0;
        }

        .scenario-card .scenario-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius) var(--radius) 0 0;
            transition: transform 0.35s ease;
        }

        .scenario-card:hover .scenario-img img {
            transform: scale(1.04);
        }

        .scenario-body {
            padding: 24px;
        }

        .scenario-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .scenario-body p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 14px;
        }

        .scenario-tag {
            display: inline-block;
            background-color: rgba(200, 149, 108, 0.1);
            color: var(--secondary-dark);
            font-size: 12px;
            padding: 3px 10px;
            border-radius: 4px;
            font-weight: 500;
        }

        /* 流程步骤区 */
        .process-steps {
            padding: var(--section-padding);
            background-color: var(--alt-surface);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .steps-grid::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 12%;
            right: 12%;
            height: 2px;
            background: repeating-linear-gradient(90deg, var(--border) 0, var(--border) 6px, transparent 6px, transparent 12px);
            z-index: 0;
        }

        .step-item {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .step-circle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 80px;
            height: 80px;
            background-color: var(--surface);
            border: 2px solid var(--secondary);
            color: var(--secondary);
            border-radius: 50%;
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 20px;
            box-shadow: var(--shadow-sm);
            transition: background-color 0.25s ease, color 0.25s ease, transform 0.25s ease;
        }

        .step-circle:hover {
            background-color: var(--secondary);
            color: #fff;
            transform: scale(1.05);
        }

        .step-item h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 220px;
            margin: 0 auto;
        }

        /* 资讯列表 */
        .news-list-section {
            padding: var(--section-padding);
            background-color: var(--background);
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .news-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.25s ease, transform 0.25s ease;
            display: flex;
            flex-direction: column;
        }

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

        .news-card .news-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            border-radius: var(--radius) var(--radius) 0 0;
            background-color: var(--alt-surface);
        }

        .news-card .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius) var(--radius) 0 0;
            transition: transform 0.35s ease;
        }

        .news-card:hover .news-img img {
            transform: scale(1.04);
        }

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

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .news-meta .news-tag {
            background-color: rgba(200, 149, 108, 0.1);
            color: var(--secondary-dark);
            padding: 2px 10px;
            border-radius: 4px;
            font-weight: 500;
            font-size: 12px;
        }

        .news-card-body h3 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1.5;
            transition: color 0.2s ease;
        }

        .news-card:hover .news-card-body h3 {
            color: var(--secondary);
        }

        .news-card-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-empty {
            text-align: center;
            padding: 60px 20px;
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            font-size: 1rem;
            color: var(--text-secondary);
        }

        /* 相关专题入口 */
        .related-topics {
            padding: var(--section-padding);
            background-color: var(--alt-surface);
        }

        .topics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .topic-card {
            display: flex;
            align-items: center;
            gap: 14px;
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px 18px;
            transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
            color: var(--text-primary);
        }

        .topic-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--border-copper);
            color: var(--secondary);
        }

        .topic-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background-color: var(--alt-surface);
            border-radius: 8px;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--secondary);
            flex-shrink: 0;
        }

        .topic-info {
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .topic-info span {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--primary);
        }

        .topic-info small {
            font-size: 0.8rem;
            color: var(--text-secondary);
        }

        .topic-arrow {
            font-size: 1.2rem;
            color: var(--secondary);
            transition: transform 0.25s ease;
        }

        .topic-card:hover .topic-arrow {
            transform: translateX(4px);
        }

        /* 订阅 CTA */
        .subscribe-cta {
            padding: var(--section-padding);
            background-color: var(--background);
        }

        .subscribe-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            background-color: var(--primary);
            border-radius: var(--radius);
            padding: 40px 48px;
            box-shadow: var(--shadow-md);
            flex-wrap: wrap;
        }

        .subscribe-left {
            flex: 1;
            min-width: 260px;
        }

        .subscribe-left h2 {
            font-family: var(--font-serif);
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .subscribe-left p {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.7;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        .subscribe-form input {
            padding: 12px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            background-color: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 0.95rem;
            min-width: 240px;
            transition: border-color 0.2s ease, background-color 0.2s ease;
        }

        .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .subscribe-form input:focus {
            border-color: var(--secondary);
            background-color: rgba(255, 255, 255, 0.15);
            box-shadow: 0 0 0 3px rgba(200, 149, 108, 0.3);
        }

        .subscribe-form button {
            background-color: var(--secondary);
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background-color 0.25s ease;
            white-space: nowrap;
        }

        .subscribe-form button:hover {
            background-color: var(--secondary-dark);
        }

        /* 返回入口 */
        .back-entry {
            padding: 40px 0;
            background-color: var(--alt-surface);
            border-top: 1px solid var(--border);
        }

        .back-entry-inner {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 24px;
            flex-wrap: wrap;
        }

        .btn-secondary {
            display: inline-block;
            background-color: transparent;
            color: var(--secondary);
            border: 1px solid var(--secondary);
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: background-color 0.25s ease, color 0.25s ease;
        }

        .btn-secondary:hover {
            background-color: rgba(200, 149, 108, 0.1);
            color: var(--secondary-dark);
        }

        .btn-text {
            display: inline-block;
            color: var(--secondary);
            font-weight: 600;
            font-size: 0.95rem;
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: color 0.2s ease;
        }

        .btn-text:hover {
            color: var(--secondary-dark);
            text-decoration-thickness: 2px;
        }

        /* 页脚 */
        .site-footer {
            background-color: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: color 0.2s ease;
        }

        .footer-col ul li a:hover {
            color: var(--secondary);
        }

        .footer-col p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 8px;
            line-height: 1.7;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
            margin: 0;
            line-height: 1.7;
        }

        /* 按钮 */
        .btn-primary {
            display: inline-block;
            background-color: var(--secondary);
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.5px;
            transition: background-color 0.25s ease;
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background-color: var(--secondary-dark);
            color: #fff;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 14px;
            }

            .main-nav a {
                font-size: 13px;
            }

            .header-cta {
                padding: 8px 16px;
                font-size: 13px;
            }

            .category-hero-wrapper {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

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

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

            .plan-card.featured {
                grid-column: span 2;
            }

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

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }

            .steps-grid::before {
                display: none;
            }

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

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

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

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

            .site-header {
                height: 64px;
            }

            .nav-toggle {
                display: flex;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background-color: var(--background);
                flex-direction: column;
                align-items: flex-start;
                padding: 20px;
                gap: 4px;
                border-bottom: 1px solid var(--border-copper);
                box-shadow: var(--shadow-md);
                z-index: 1000;
            }

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

            .main-nav a {
                display: block;
                width: 100%;
                padding: 12px 0;
                font-size: 15px;
                border-bottom: 1px solid rgba(224, 217, 205, 0.4);
            }

            .main-nav a:last-child {
                border-bottom: none;
            }

            .header-cta {
                display: none;
            }

            .category-hero {
                padding: 40px 0;
            }

            .category-hero-content h1 {
                font-size: 1.7rem;
            }

            .key-points-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .plan-grid {
                grid-template-columns: 1fr;
            }

            .plan-card.featured {
                grid-column: span 1;
            }

            .scenario-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .steps-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .news-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .topics-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .subscribe-bar {
                padding: 28px 20px;
                flex-direction: column;
                align-items: flex-start;
            }

            .subscribe-form {
                width: 100%;
            }

            .subscribe-form input {
                flex: 1;
                min-width: 100%;
            }

            .subscribe-form button {
                width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .back-entry-inner {
                flex-direction: column;
                gap: 12px;
            }

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

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

            .logo-text {
                font-size: 1.15rem;
            }

            .category-hero-content h1 {
                font-size: 1.45rem;
            }

            .key-point-card {
                padding: 20px 16px;
            }

            .plan-card {
                padding: 24px 18px;
            }

            .plan-ratio {
                font-size: 2rem;
            }

            .step-circle {
                width: 64px;
                height: 64px;
                font-size: 1.3rem;
            }

            .section-header h2 {
                font-size: 1.3rem;
            }

            .news-card-body h3 {
                font-size: 1rem;
            }

            .footer-col h4 {
                font-size: 0.95rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #0F3A2F;
            --primary-dark: #0A2A22;
            --secondary: #C8956C;
            --secondary-dark: #B07F52;
            --background: #F7F3EC;
            --surface: #FFFFFF;
            --alt-surface: #ECEFEA;
            --text-primary: #10261E;
            --text-secondary: #5C6B63;
            --border: #E0D9CD;
            --border-copper: rgba(200, 149, 108, 0.35);
            --shadow-sm: 0 2px 12px rgba(15, 58, 47, 0.06);
            --shadow-md: 0 8px 24px rgba(15, 58, 47, 0.12);
            --radius: 10px;
            --radius-sm: 6px;
            --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --container-width: 1200px;
            --section-padding: 64px 0;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--background);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        a {
            color: var(--secondary);
            text-decoration: none;
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
        }
        a:hover {
            color: var(--secondary-dark);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            outline: none;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(200, 149, 108, 0.2);
        }
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        /* 导航栏 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(247, 243, 236, 0.98);
            border-bottom: 1px solid var(--border-copper);
            height: 72px;
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: var(--text-primary);
        }
        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            border-radius: 8px;
            letter-spacing: 1px;
        }
        .logo-text {
            font-family: var(--font-serif);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            color: var(--text-primary);
            font-size: 15px;
            font-weight: 500;
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--secondary);
        }
        .main-nav a.active::after,
        .main-nav a:hover::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--secondary);
            border-radius: 1px;
        }
        .header-cta {
            display: inline-block;
            background-color: var(--secondary);
            color: #fff;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.5px;
            transition: background-color 0.2s ease;
        }
        .header-cta:hover {
            background-color: var(--secondary-dark);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
            transition: transform 0.25s ease, opacity 0.25s ease;
        }
        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        /* 面包屑 */
        .breadcrumb-wrap {
            background-color: var(--alt-surface);
            padding: 16px 0;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '/';
            color: var(--border);
            margin-left: 4px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--secondary);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }
        /* 分类页头部 */
        .category-hero {
            background: var(--alt-surface);
            padding: 56px 0 48px;
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(200, 149, 108, 0.08);
            pointer-events: none;
        }
        .category-hero-inner {
            position: relative;
            z-index: 1;
        }
        .category-h1 {
            font-family: var(--font-serif);
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--primary);
            margin: 12px 0 16px;
            line-height: 1.35;
        }
        .category-h1 .highlight {
            color: var(--secondary);
        }
        .category-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 780px;
            line-height: 1.8;
            margin: 0;
        }
        /* 通用 section */
        .section {
            padding: var(--section-padding);
        }
        .section-alt {
            background-color: var(--alt-surface);
        }
        .section-white {
            background-color: var(--surface);
        }
        .section-title {
            font-family: var(--font-serif);
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .section-subtitle {
            color: var(--text-secondary);
            font-size: 15px;
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .section-divider {
            width: 60px;
            height: 3px;
            background-color: var(--secondary);
            border-radius: 2px;
            margin-bottom: 24px;
        }
        /* 要点卡片 */
        .point-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .point-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
        }
        .point-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--border-copper);
        }
        .point-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: rgba(200, 149, 108, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 14px;
            color: var(--secondary);
        }
        .point-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .point-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        /* 文章列表 */
        .post-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .post-item {
            display: flex;
            gap: 20px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.25s ease, transform 0.25s ease, border-left 0.25s ease;
            border-left: 4px solid transparent;
        }
        .post-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
            border-left: 4px solid var(--secondary);
        }
        .post-item-body {
            flex: 1;
            min-width: 0;
        }
        .post-item-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-item-title a {
            color: var(--primary);
            text-decoration: none;
        }
        .post-item-title a:hover {
            color: var(--secondary);
        }
        .post-item-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-item-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .post-tag {
            display: inline-block;
            padding: 3px 10px;
            background-color: rgba(200, 149, 108, 0.12);
            color: var(--secondary-dark);
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.3px;
        }
        .post-item-thumb {
            width: 120px;
            height: 90px;
            flex-shrink: 0;
            border-radius: 8px;
            overflow: hidden;
            background-color: var(--alt-surface);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .post-item-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 8px;
        }
        /* 热门文章横栏 */
        .hot-articles {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .hot-article-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 16px 18px;
            display: flex;
            align-items: flex-start;
            gap: 12px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
        }
        .hot-article-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--border-copper);
        }
        .hot-num {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: var(--primary);
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hot-article-item:nth-child(2) .hot-num,
        .hot-article-item:nth-child(3) .hot-num {
            background-color: var(--secondary);
        }
        .hot-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .hot-title a {
            color: var(--primary);
        }
        .hot-title a:hover {
            color: var(--secondary);
        }
        /* 相关专题入口 */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .topic-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.25s ease, transform 0.25s ease, background-color 0.25s ease, border-color 0.25s ease;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            background-color: rgba(200, 149, 108, 0.05);
            border-color: var(--border-copper);
        }
        .topic-card-label {
            font-size: 1rem;
            font-weight: 700;
            color: var(--primary);
        }
        .topic-card-arrow {
            color: var(--secondary);
            font-size: 1.3rem;
            flex-shrink: 0;
            transition: transform 0.2s ease;
        }
        .topic-card:hover .topic-card-arrow {
            transform: translateX(4px);
        }
        /* 订阅CTA */
        .subscribe-cta {
            background: var(--primary);
            border-radius: var(--radius);
            padding: 40px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .subscribe-text {
            flex: 1;
            min-width: 260px;
        }
        .subscribe-text h3 {
            color: #fff;
            font-family: var(--font-serif);
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .subscribe-text p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            margin: 0;
            line-height: 1.7;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-wrap: wrap;
        }
        .subscribe-form input {
            padding: 10px 16px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 14px;
            min-width: 240px;
            outline: none;
            transition: border-color 0.2s ease, background-color 0.2s ease;
        }
        .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .subscribe-form input:focus {
            border-color: var(--secondary);
            background: rgba(255, 255, 255, 0.15);
        }
        .btn-primary-copper {
            display: inline-block;
            background-color: var(--secondary);
            color: #fff;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            border: none;
            cursor: pointer;
            letter-spacing: 0.3px;
            transition: background-color 0.2s ease, transform 0.2s ease;
        }
        .btn-primary-copper:hover {
            background-color: var(--secondary-dark);
            transform: translateY(-1px);
        }
        /* 返回入口 */
        .back-entry {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .btn-outline-copper {
            display: inline-block;
            background: transparent;
            color: var(--secondary);
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            border: 1px solid var(--secondary);
            cursor: pointer;
            letter-spacing: 0.3px;
            transition: background-color 0.2s ease, color 0.2s ease;
        }
        .btn-outline-copper:hover {
            background-color: rgba(200, 149, 108, 0.12);
            color: var(--secondary-dark);
        }
        .btn-link-copper {
            color: var(--secondary);
            font-weight: 600;
            font-size: 14px;
            text-decoration: none;
            border-bottom: 2px solid transparent;
            padding-bottom: 2px;
            transition: border-color 0.2s ease, color 0.2s ease;
        }
        .btn-link-copper:hover {
            color: var(--secondary-dark);
            border-bottom-color: var(--secondary);
        }
        /* 空态 */
        .empty-state {
            text-align: center;
            padding: 48px 20px;
            background: var(--surface);
            border: 1px dashed var(--border);
            border-radius: var(--radius);
            color: var(--text-secondary);
            font-size: 15px;
        }
        /* 页脚 */
        .site-footer {
            background-color: var(--primary-dark);
            color: #fff;
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            color: var(--secondary);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .footer-col ul li a:hover {
            color: var(--secondary);
        }
        .footer-contact p {
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
            margin-bottom: 8px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(200, 149, 108, 0.2);
            padding-top: 16px;
            text-align: center;
        }
        .footer-bottom p {
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
            margin: 0;
        }
        /* 响应式 */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 18px;
            }
            .main-nav a {
                font-size: 14px;
            }
            .point-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hot-articles {
                grid-template-columns: repeat(2, 1fr);
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .site-header {
                height: auto;
                min-height: 64px;
                padding: 12px 0;
            }
            .header-inner {
                flex-wrap: wrap;
                position: relative;
            }
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--background);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 12px 20px 20px;
                border-bottom: 1px solid var(--border-copper);
                box-shadow: var(--shadow-md);
                z-index: 999;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 0;
                border-bottom: 1px solid var(--border);
                font-size: 15px;
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .header-cta {
                padding: 8px 16px;
                font-size: 13px;
            }
            .category-h1 {
                font-size: 1.8rem;
            }
            .point-grid {
                grid-template-columns: 1fr;
            }
            .hot-articles {
                grid-template-columns: 1fr;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .post-item {
                flex-direction: column;
                padding: 16px;
            }
            .post-item-thumb {
                width: 100%;
                height: 160px;
                order: -1;
            }
            .subscribe-cta {
                flex-direction: column;
                align-items: stretch;
                padding: 24px 20px;
            }
            .subscribe-form {
                flex-direction: column;
                align-items: stretch;
            }
            .subscribe-form input {
                min-width: auto;
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .category-h1 {
                font-size: 1.5rem;
            }
            .post-item-meta {
                flex-wrap: wrap;
                gap: 8px;
            }
            .back-entry {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
            }
            .container {
                padding: 0 16px;
            }
        }