/* roulang page: index */
:root {
            --color-primary: #1B7A43;
            --color-primary-dark: #145A32;
            --color-primary-light: #E8F3EC;
            --color-accent: #E8A33D;
            --color-danger: #C8432F;
            --color-bg: #F7F9F8;
            --color-surface: #FFFFFF;
            --color-surface-alt: #F0F5F1;
            --color-text: #1F2A37;
            --color-text-secondary: #5B6B73;
            --color-border: #E3EAE5;
            --color-dark-section: #1F2A37;
            --shadow-card: 0 4px 20px rgba(31, 42, 55, 0.06);
            --shadow-card-hover: 0 12px 32px rgba(31, 42, 55, 0.12);
            --shadow-float: 0 12px 40px rgba(27, 122, 67, 0.18);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --space-section: clamp(64px, 8vw, 112px);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: color .2s ease; }
        a:hover { color: var(--color-primary); }
        ul { list-style: none; }
        input, textarea, select, button { font-family: inherit; font-size: inherit; outline: none; }

        .grid-container { max-width: 1280px; }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 24px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: 1.5px solid transparent;
            cursor: pointer;
            transition: all .25s ease;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
        }
        .btn-primary:hover { background: var(--color-primary-dark); color: #fff; transform: translateY(-1px); }
        .btn-outline {
            background: #fff;
            color: var(--color-primary);
            border-color: var(--color-primary);
        }
        .btn-outline:hover { background: var(--color-primary-light); color: var(--color-primary-dark); }
        .btn-white {
            background: #fff;
            color: var(--color-primary);
        }
        .btn-white:hover { background: var(--color-primary-light); transform: translateY(-1px); }
        .btn-lg { height: 52px; padding: 0 40px; font-size: 16px; }
        .btn-sm { height: 36px; padding: 0 16px; font-size: 14px; }
        .btn:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

        /* 工具条 */
        .topbar {
            background: var(--color-surface-alt);
            height: 36px;
            display: flex;
            align-items: center;
            font-size: 12px;
            color: var(--color-text-secondary);
            border-bottom: 1px solid var(--color-border);
        }
        .topbar-inner {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        .topbar-links a { margin-left: 16px; color: var(--color-text-secondary); }
        .topbar-links a:hover { color: var(--color-primary); }

        /* 主导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--color-surface);
            box-shadow: var(--shadow-card);
        }
        .main-nav-container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
            height: 76px;
            display: flex;
            align-items: center;
            gap: 24px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .site-logo svg { width: 34px; height: 34px; }
        .site-logo .logo-text { font-size: 22px; font-weight: 700; color: var(--color-primary); letter-spacing: 1px; }
        .nav-menu {
            display: flex;
            gap: 6px;
            align-items: center;
        }
        .nav-menu a {
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            border-bottom: 2px solid transparent;
            border-radius: 0;
            transition: all .2s ease;
        }
        .nav-menu a:hover { color: var(--color-primary); }
        .nav-menu a.active { color: var(--color-primary); border-bottom-color: var(--color-primary); }
        .nav-search {
            flex: 1;
            max-width: 420px;
            position: relative;
            margin: 0 auto;
        }
        .nav-search svg {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            width: 16px;
            height: 16px;
            color: var(--color-text-secondary);
            pointer-events: none;
        }
        .nav-search input {
            width: 100%;
            height: 44px;
            border-radius: 16px;
            background: var(--color-surface-alt);
            border: 2px solid transparent;
            padding: 0 16px 0 40px;
            font-size: 14px;
            color: var(--color-text);
            transition: all .25s ease;
        }
        .nav-search input::placeholder { color: var(--color-text-secondary); }
        .nav-search input:focus {
            background: #fff;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(27, 122, 67, 0.12);
        }
        .nav-cta { flex-shrink: 0; }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            width: 40px;
            height: 40px;
            justify-content: center;
            align-items: center;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--color-text);
            border-radius: 2px;
            transition: all .25s ease;
        }

        /* 移动端抽屉 */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(15, 25, 20, 0.5);
            z-index: 200;
            opacity: 0;
            pointer-events: none;
            transition: opacity .3s ease;
        }
        .mobile-drawer.open { opacity: 1; pointer-events: auto; }
        .mobile-drawer-panel {
            position: absolute;
            top: 0;
            right: 0;
            width: 86%;
            max-width: 400px;
            height: 100%;
            background: #fff;
            padding: 24px;
            display: flex;
            flex-direction: column;
            transform: translateX(100%);
            transition: transform .3s ease;
            box-shadow: -12px 0 40px rgba(0, 0, 0, 0.1);
        }
        .mobile-drawer.open .mobile-drawer-panel { transform: translateX(0); }
        .mobile-drawer-close {
            width: 40px;
            height: 40px;
            background: none;
            border: none;
            font-size: 28px;
            color: var(--color-text);
            cursor: pointer;
            align-self: flex-end;
            line-height: 1;
        }
        .mobile-drawer-search { margin-bottom: 20px; }
        .mobile-drawer-search input {
            width: 100%;
            height: 44px;
            border-radius: 12px;
            background: var(--color-surface-alt);
            border: 1px solid var(--color-border);
            padding: 0 16px;
            font-size: 14px;
        }
        .mobile-drawer-search input:focus { border-color: var(--color-primary); }
        .mobile-drawer-menu { display: flex; flex-direction: column; gap: 4px; margin-bottom: 24px; }
        .mobile-drawer-menu a {
            padding: 14px 8px;
            font-size: 16px;
            font-weight: 500;
            color: var(--color-text);
            border-bottom: 1px solid var(--color-border);
        }
        .mobile-drawer-menu a:hover { color: var(--color-primary); }
        .mobile-drawer-cta { margin-top: auto; }

        /* Hero */
        .hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            background: var(--color-bg) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: var(--space-section) 0;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(247, 249, 248, 0.75);
        }
        .hero .grid-container { position: relative; z-index: 1; }
        .hero-breadcrumb {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-bottom: 16px;
        }
        .hero-breadcrumb span { margin: 0 8px; color: var(--color-border); }
        .hero h1 {
            font-size: clamp(32px, 5vw, 52px);
            font-weight: 700;
            line-height: 1.25;
            color: var(--color-text);
            margin-bottom: 16px;
            max-width: 640px;
        }
        .hero-subtitle {
            font-size: 16px;
            color: var(--color-text-secondary);
            line-height: 1.8;
            max-width: 520px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
        }
        .hero-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-primary);
        }
        .hero-link:hover { color: var(--color-primary-dark); }
        .hero-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card-hover);
            background: #fff;
            border: 1px solid var(--color-border);
        }
        .hero-image img { width: 100%; height: 100%; object-fit: cover; min-height: 320px; }

        /* 通用板块 */
        .section { padding: var(--space-section) 0; }
        .section-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            margin-bottom: 40px;
            flex-wrap: wrap;
            gap: 16px;
        }
        .section-header h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            color: var(--color-text);
            margin: 0;
        }
        .section-header .sub-title {
            color: var(--color-text-secondary);
            font-size: 15px;
            margin-top: 4px;
        }
        .more-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            padding: 6px 0;
            border-bottom: 2px solid transparent;
        }
        .more-link:hover { border-bottom-color: var(--color-primary); }

        /* 资讯卡片 */
        .news-card-wrap { margin-bottom: 24px; }
        .news-card {
            display: block;
            background: var(--color-surface);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            transition: all .25s ease;
            height: 100%;
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            color: var(--color-text);
        }
        .news-thumb { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--color-surface-alt); }
        .news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
        .news-card:hover .news-thumb img { transform: scale(1.03); }
        .news-badge {
            position: absolute;
            left: 12px;
            top: 12px;
            background: #FDF3E7;
            color: #B5791E;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        }
        .news-body { padding: 16px 20px 20px; }
        .news-body h3 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 48px;
        }
        .news-body p {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .news-meta {
            display: flex;
            justify-content: space-between;
            font-size: 12px;
            color: #9AA5A0;
            border-top: 1px solid var(--color-border);
            padding-top: 12px;
        }

        /* 空态 */
        .news-empty {
            border: 2px dashed var(--color-border);
            border-radius: var(--radius-md);
            padding: 64px 24px;
            text-align: center;
            background: var(--color-surface);
        }
        .news-empty svg { width: 48px; height: 48px; color: var(--color-border); margin-bottom: 12px; }
        .news-empty p { color: var(--color-text-secondary); font-size: 15px; margin-bottom: 8px; }
        .news-empty a { color: var(--color-primary); font-size: 14px; font-weight: 500; }

        /* 卖点区 Features */
        .features-section { background: var(--color-surface); }
        .section-header-center { text-align: center; justify-content: center; flex-direction: column; align-items: center; }
        .feature-item {
            display: grid;
            grid-template-columns: 1fr 2fr 5fr;
            gap: 24px;
            align-items: start;
            padding: 36px 0;
            border-bottom: 1px solid var(--color-border);
        }
        .feature-item:last-child { border-bottom: none; }
        .feature-num {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-accent);
            opacity: .7;
            padding-top: 4px;
        }
        .feature-icon {
            width: 40px;
            height: 40px;
            color: var(--color-primary);
            margin-top: 4px;
        }
        .feature-content h3 { font-size: 20px; font-weight: 600; margin-bottom: 8px; }
        .feature-content p { font-size: 15px; color: var(--color-text-secondary); max-width: 640px; line-height: 1.8; }

        /* 演示区 */
        .demo-section {
            background: var(--color-dark-section);
            padding: var(--space-section) 0;
        }
        .demo-section .section-header h2 { color: #fff; }
        .demo-section .section-header .sub-title { color: rgba(255, 255, 255, 0.6); }
        .demo-visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-bottom: 48px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
            border: 1px solid rgba(255, 255, 255, 0.08);
            background: rgba(255, 255, 255, 0.02);
        }
        .demo-visual img { width: 100%; height: auto; min-height: 240px; object-fit: cover; }
        .demo-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .step {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 24px;
            position: relative;
        }
        .step-num {
            font-size: 13px;
            font-weight: 700;
            color: var(--color-accent);
            background: rgba(232, 163, 61, 0.12);
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            margin-bottom: 12px;
        }
        .step h4 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 6px; }
        .step p { color: rgba(255, 255, 255, 0.6); font-size: 13px; line-height: 1.6; }

        /* 数据与口碑 */
        .proof-section { background: var(--color-bg); }
        .proof-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
            margin-bottom: 56px;
        }
        .stat-num {
            font-size: clamp(36px, 4vw, 48px);
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
        }
        .stat-label { font-size: 14px; color: var(--color-text-secondary); margin-top: 8px; }
        .testimonials {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .testimonial {
            background: var(--color-surface);
            border: 1px solid rgba(27, 122, 67, 0.2);
            border-radius: var(--radius-md);
            padding: 28px;
            position: relative;
        }
        .testimonial::before {
            content: '"';
            font-size: 64px;
            color: var(--color-primary-light);
            line-height: 1;
            position: absolute;
            top: 16px;
            left: 24px;
            font-family: Georgia, serif;
        }
        .testimonial p {
            font-size: 15px;
            color: var(--color-text);
            line-height: 1.8;
            margin-bottom: 16px;
            padding-top: 20px;
        }
        .testimonial .testimonial-author { font-size: 13px; color: var(--color-text-secondary); }

        /* 定价区 */
        .pricing-section { background: var(--color-surface); }
        .pricing-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: stretch;
        }
        .pricing-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            display: flex;
            flex-direction: column;
            position: relative;
            transition: all .25s ease;
        }
        .pricing-card:hover { box-shadow: var(--shadow-card); }
        .pricing-card.featured {
            border: 2px solid var(--color-primary);
            box-shadow: var(--shadow-float);
            transform: scale(1.02);
        }
        .pricing-card.featured:hover { box-shadow: var(--shadow-float); transform: scale(1.02); }
        .featured-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-primary);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 20px;
            white-space: nowrap;
        }
        .pricing-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
        .pricing-card .price {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .pricing-card .price span { font-size: 14px; font-weight: 400; color: var(--color-text-secondary); margin-left: 4px; }
        .pricing-card ul { margin: 0 0 24px; padding: 0; }
        .pricing-card ul li {
            padding: 8px 0;
            font-size: 14px;
            color: var(--color-text-secondary);
            border-bottom: 1px solid var(--color-border);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .pricing-card ul li::before {
            content: '';
            width: 6px;
            height: 6px;
            background: var(--color-primary);
            border-radius: 50%;
            flex-shrink: 0;
        }
        .pricing-card ul li:last-child { border-bottom: none; }
        .pricing-card .btn { margin-top: auto; width: 100%; }
        .pricing-note {
            text-align: center;
            font-size: 14px;
            color: var(--color-text-secondary);
            margin-top: 28px;
        }

        /* FAQ */
        .faq-section { background: var(--color-bg); }
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0 48px;
        }
        .accordion { background: transparent; border: none; margin: 0; border-radius: 0; }
        .accordion-item {
            background: transparent;
            border: none;
            border-bottom: 1px solid var(--color-border);
            margin-bottom: 0 !important;
        }
        .accordion-title {
            background: transparent !important;
            border: none;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            padding: 20px 0;
            line-height: 1.6;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .accordion-title:hover, .accordion-title:focus {
            background: transparent;
            color: var(--color-primary);
        }
        .accordion-title::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--color-primary);
            transition: transform .2s ease;
            flex-shrink: 0;
            line-height: 1;
        }
        .accordion-item.is-active > .accordion-title::after { content: '×'; }
        .accordion-content {
            background: transparent !important;
            border: none;
            padding: 0 0 20px;
            color: var(--color-text-secondary);
            font-size: 14px;
            line-height: 1.8;
            border-bottom: none;
        }

        /* CTA区 */
        .contact-section {
            background: var(--color-primary);
            padding: var(--space-section) 0;
        }
        .contact-section h2 { color: #fff; font-size: clamp(24px, 3vw, 32px); margin-bottom: 8px; }
        .contact-section .contact-desc { color: rgba(255, 255, 255, 0.8); font-size: 15px; margin-bottom: 32px; }
        .contact-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .contact-info-list { margin-bottom: 24px; }
        .contact-info-list li {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            padding: 8px 0;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .contact-info-list svg { width: 18px; height: 18px; color: var(--color-accent); flex-shrink: 0; }
        .contact-form {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
        }
        .form-group { margin-bottom: 20px; }
        .form-group label { display: block; font-size: 13px; font-weight: 500; color: var(--color-text); margin-bottom: 6px; }
        .form-group input,
        .form-group textarea {
            width: 100%;
            height: 44px;
            border-radius: 8px;
            border: 1px solid var(--color-border);
            padding: 0 14px;
            font-size: 14px;
            transition: all .2s ease;
            background: var(--color-bg);
        }
        .form-group textarea { height: 100px; padding: 12px 14px; resize: vertical; }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(27, 122, 67, 0.12);
            background: #fff;
        }
        .form-group .error-msg { font-size: 12px; color: var(--color-danger); margin-top: 4px; display: none; }

        /* 页脚 */
        .site-footer {
            background: var(--color-primary-dark);
            color: rgba(255, 255, 255, 0.85);
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-brand .footer-logo svg { width: 32px; height: 32px; }
        .footer-brand .footer-logo span { font-size: 22px; font-weight: 700; color: #fff; }
        .footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, 0.7); max-width: 260px; }
        .footer-col h4 { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 16px; }
        .footer-col ul li { margin-bottom: 8px; }
        .footer-col ul a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            transition: color .2s ease;
        }
        .footer-col ul a:hover { color: var(--color-accent); }
        .footer-contact-list li {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            padding: 6px 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-contact-list svg { width: 16px; height: 16px; color: var(--color-accent); flex-shrink: 0; }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            flex-wrap: wrap;
            gap: 8px;
        }

        /* 浮动CTA */
        .float-cta {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-primary);
            border: none;
            color: #fff;
            cursor: pointer;
            box-shadow: var(--shadow-float);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 100;
            transition: all .25s ease;
        }
        .float-cta:hover { transform: scale(1.05); background: var(--color-primary-dark); }
        .float-cta svg { width: 22px; height: 22px; }
        .float-box {
            position: fixed;
            bottom: 100px;
            right: 32px;
            width: 340px;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
            padding: 24px;
            z-index: 101;
            display: none;
        }
        .float-box.open { display: block; animation: floatIn .25s ease; }
        @keyframes floatIn {
            from { opacity: 0; transform: translateY(12px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .float-box h4 { font-size: 16px; margin-bottom: 16px; }
        .float-box .form-group { margin-bottom: 12px; }
        .float-box .form-group input,
        .float-box .form-group textarea {
            width: 100%;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--color-border);
            padding: 0 12px;
            font-size: 13px;
        }
        .float-box .form-group textarea { height: 80px; padding: 10px 12px; }
        .float-box .form-group input:focus,
        .float-box .form-group textarea:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(27, 122, 67, 0.12);
        }
        .float-box .btn { width: 100%; height: 40px; font-size: 14px; }
        .float-box-close {
            position: absolute;
            top: 12px;
            right: 12px;
            width: 32px;
            height: 32px;
            border: none;
            background: none;
            font-size: 22px;
            cursor: pointer;
            color: var(--color-text-secondary);
            line-height: 1;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .float-box-close:hover { color: var(--color-text); }

        /* 响应式 */
        @media (max-width: 1024px) {
            .demo-steps { grid-template-columns: repeat(2, 1fr); }
            .pricing-cards { grid-template-columns: 1fr 1fr; }
            .pricing-card.featured { order: -1; grid-column: 1 / -1; }
            .proof-stats { grid-template-columns: repeat(2, 1fr); }
            .contact-row { grid-template-columns: 1fr; gap: 32px; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 840px) {
            .nav-menu { display: none; }
            .nav-search { display: none; }
            .nav-cta { display: none; }
            .nav-toggle { display: flex; }
            .mobile-drawer { display: block; }
            .main-nav-container { justify-content: space-between; }
        }
        @media (max-width: 640px) {
            .topbar-inner { padding: 0 16px; }
            .main-nav-container { padding: 0 16px; height: 64px; }
            .hero { min-height: auto; padding: 64px 0; }
            .hero-actions { flex-direction: column; align-items: flex-start; }
            .feature-item { grid-template-columns: 1fr; gap: 8px; padding: 24px 0; }
            .feature-num { font-size: 16px; }
            .demo-steps { grid-template-columns: 1fr; }
            .testimonials { grid-template-columns: 1fr; }
            .pricing-cards { grid-template-columns: 1fr; }
            .pricing-card.featured { grid-column: auto; order: 0; transform: none; }
            .pricing-card.featured:hover { transform: none; }
            .proof-stats { grid-template-columns: 2, 1fr; grid-template-columns: repeat(2, 1fr); gap: 24px; }
            .faq-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .float-cta { width: 48px; height: 48px; bottom: 16px; right: 16px; }
            .float-box { width: auto; left: 16px; right: 16px; bottom: 80px; }
            .section-header { flex-direction: column; align-items: flex-start; }
        }

/* roulang page: category1 */
:root {
            --color-primary: #1B7A43;
            --color-primary-dark: #145A32;
            --color-primary-light: #E8F3EC;
            --color-accent: #E8A33D;
            --color-danger: #C8432F;
            --color-bg: #F7F9F8;
            --color-surface: #FFFFFF;
            --color-surface-alt: #F0F5F1;
            --color-text: #1F2A37;
            --color-text-secondary: #5B6B73;
            --color-border: #E3EAE5;
            --color-dark-section: #1F2A37;
            --shadow-card: 0 4px 20px rgba(31,42,55,0.06);
            --shadow-card-hover: 0 12px 32px rgba(31,42,55,0.12);
            --shadow-float: 0 12px 40px rgba(27,122,67,0.18);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --space-section: clamp(64px, 8vw, 112px);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, background-color 0.25s ease, border-color 0.25s ease;
        }

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

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

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

        .grid-container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* 顶部工具条 */
        .top-toolbar {
            background: var(--color-surface-alt);
            height: 36px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid var(--color-border);
        }

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

        .toolbar-text {
            font-size: 12px;
            color: var(--color-text-secondary);
            letter-spacing: 0.5px;
        }

        .toolbar-links {
            display: flex;
            gap: 20px;
        }

        .toolbar-links a {
            font-size: 12px;
            color: var(--color-text-secondary);
        }

        .toolbar-links a:hover {
            color: var(--color-primary);
        }

        /* 主导航 */
        .site-header {
            background: var(--color-surface);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-card);
        }

        .header-main {
            display: flex;
            align-items: center;
            gap: 28px;
            height: 76px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo svg {
            width: 36px;
            height: 36px;
        }

        .logo span {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 1px;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 24px;
            margin-left: 8px;
        }

        .nav-menu a {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            padding: 8px 2px;
            border-bottom: 2px solid transparent;
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .nav-menu a:hover {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary-light);
        }

        .nav-menu a.active {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
            font-weight: 600;
        }

        .header-search {
            flex: 0 1 380px;
            margin-left: auto;
            position: relative;
        }

        .header-search .search-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            width: 16px;
            height: 16px;
            color: var(--color-text-secondary);
            pointer-events: none;
        }

        .header-search input {
            width: 100%;
            height: 44px;
            border: 1px solid transparent;
            background: var(--color-surface-alt);
            border-radius: 22px;
            padding: 0 48px 0 40px;
            font-size: 14px;
            color: var(--color-text);
            outline: none;
            transition: all 0.3s ease;
        }

        .header-search input::placeholder {
            color: var(--color-text-secondary);
        }

        .header-search input:focus {
            border-color: var(--color-primary);
            background: var(--color-surface);
            box-shadow: 0 0 0 4px rgba(27, 122, 67, 0.12);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 24px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: 1.5px solid transparent;
            cursor: pointer;
            transition: all 0.25s ease;
            white-space: nowrap;
            line-height: 44px;
            text-align: center;
        }

        .btn-sm {
            height: 40px;
            line-height: 40px;
            padding: 0 20px;
            font-size: 14px;
        }

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

        .btn-primary:hover {
            background: var(--color-primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(27, 122, 67, 0.22);
        }

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

        .btn-outline:hover {
            background: var(--color-primary-light);
            color: var(--color-primary-dark);
        }

        .btn-white {
            background: #fff;
            color: var(--color-primary);
            height: 52px;
            line-height: 52px;
            padding: 0 40px;
            font-size: 16px;
        }

        .btn-white:hover {
            background: var(--color-surface-alt);
            color: var(--color-primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
        }

        .btn:focus-visible,
        a:focus-visible,
        input:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        .btn-header {
            flex-shrink: 0;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .hamburger svg {
            width: 22px;
            height: 22px;
            color: var(--color-text);
        }

        /* 移动端抽屉 */
        .mobile-drawer {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 2000;
            background: rgba(15, 25, 20, 0.5);
            backdrop-filter: blur(2px);
        }

        .mobile-drawer.open {
            display: block;
        }

        .mobile-drawer-panel {
            position: absolute;
            top: 0;
            right: 0;
            width: min(360px, 88%);
            height: 100%;
            background: var(--color-surface);
            box-shadow: -8px 0 30px rgba(0, 0, 0, 0.1);
            padding: 24px;
            overflow-y: auto;
        }

        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 30px;
        }

        .drawer-close {
            width: 40px;
            height: 40px;
            background: var(--color-surface-alt);
            border: none;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 18px;
            color: var(--color-text);
        }

        .drawer-search {
            margin-bottom: 24px;
            position: relative;
        }

        .drawer-search .search-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            width: 16px;
            height: 16px;
            color: var(--color-text-secondary);
        }

        .drawer-search input {
            width: 100%;
            height: 48px;
            border: 1px solid var(--color-border);
            background: var(--color-surface-alt);
            border-radius: 12px;
            padding: 0 16px 0 44px;
            font-size: 15px;
            outline: none;
        }

        .drawer-search input:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(27, 122, 67, 0.12);
        }

        .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            margin-bottom: 30px;
        }

        .drawer-nav a {
            padding: 12px 14px;
            border-radius: 10px;
            font-size: 16px;
            font-weight: 500;
            color: var(--color-text);
            background: transparent;
        }

        .drawer-nav a:hover {
            background: var(--color-primary-light);
            color: var(--color-primary);
        }

        .drawer-nav a.active {
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-weight: 600;
        }

        /* 分类页横幅 */
        .page-category .category-banner {
            position: relative;
            background: var(--color-surface-alt);
            padding: 60px 0 56px;
            border-bottom: 1px solid var(--color-border);
            overflow: hidden;
        }

        .page-category .category-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.14;
            z-index: 0;
        }

        .category-banner-inner {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 40px;
        }

        .category-banner-text {
            max-width: 720px;
        }

        .category-banner .banner-badge {
            display: inline-block;
            background: rgba(232, 163, 61, 0.16);
            color: #b97b1a;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .category-banner h1 {
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 700;
            line-height: 1.25;
            color: var(--color-text);
            margin-bottom: 12px;
        }

        .category-banner h1 .brand {
            color: var(--color-primary);
        }

        .category-banner .banner-desc {
            font-size: 16px;
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .category-banner .banner-meta {
            font-size: 13px;
            color: var(--color-text-secondary);
            opacity: 0.85;
        }

        .banner-stats {
            display: flex;
            gap: 48px;
            flex-shrink: 0;
            padding-bottom: 8px;
        }

        .banner-stats .stat-item {
            text-align: center;
        }

        .banner-stats .stat-num {
            font-size: 36px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
        }

        .banner-stats .stat-label {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-top: 4px;
        }

        /* 热门标签 */
        .category-tags {
            padding: 28px 0;
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
        }

        .category-tags .tags-wrapper {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .category-tags .tags-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            margin-right: 4px;
        }

        .category-tags .tag {
            display: inline-block;
            padding: 5px 14px;
            background: var(--color-surface-alt);
            border: 1px solid var(--color-border);
            border-radius: 20px;
            font-size: 13px;
            color: var(--color-text-secondary);
            transition: all 0.25s ease;
        }

        .category-tags .tag:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: var(--color-primary-light);
        }

        /* 分类主体布局 */
        .category-main {
            padding: var(--space-section) 0 0;
        }

        .category-index {
            position: sticky;
            top: 100px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-card);
        }

        .category-index .index-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--color-border);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .category-index .index-title .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-primary);
            display: inline-block;
        }

        .category-index .index-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .category-index .index-list a {
            display: block;
            padding: 9px 12px;
            border-radius: 8px;
            font-size: 14px;
            color: var(--color-text-secondary);
            border-left: 3px solid transparent;
            transition: all 0.2s ease;
        }

        .category-index .index-list a:hover,
        .category-index .index-list a.active {
            color: var(--color-primary);
            background: var(--color-primary-light);
            border-left-color: var(--color-primary);
            font-weight: 500;
        }

        .category-index .index-note {
            margin-top: 20px;
            padding-top: 16px;
            border-top: 1px solid var(--color-border);
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* 内容卡片区 */
        .content-cards {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

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

        .news-card:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card);
        }

        .news-card .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            background: var(--color-surface-alt);
        }

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

        .news-card .card-badge {
            display: inline-block;
            align-self: flex-start;
            background: rgba(232, 163, 61, 0.14);
            color: #b97b1a;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
            margin-bottom: 10px;
        }

        .news-card .card-title {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--color-text);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 48px;
        }

        .news-card .card-title a {
            display: block;
        }

        .news-card .card-title a:hover {
            color: var(--color-primary);
        }

        .news-card .card-summary {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
        }

        .news-card .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 12px;
            color: #9aa5ad;
            border-top: 1px solid var(--color-border);
            padding-top: 12px;
        }

        .news-card .card-meta .meta-date {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .news-card .card-meta .meta-read {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: auto;
        }

        .news-card .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            margin-top: 12px;
        }

        .news-card .card-link:hover {
            color: var(--color-primary-dark);
            text-decoration: underline;
        }

        /* 分页 */
        .pagination-wrap {
            padding: 48px 0 64px;
            text-align: center;
        }

        .pagination {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }

        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text);
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            transition: all 0.25s ease;
        }

        .pagination a:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: var(--color-primary-light);
        }

        .pagination .current {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }

        .pagination .disabled {
            opacity: 0.45;
            pointer-events: none;
        }

        /* FAQ 简约区 */
        .cat-faq {
            padding: var(--space-section) 0;
            background: var(--color-surface);
        }

        .cat-faq .section-title {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            color: var(--color-text);
            text-align: center;
            margin-bottom: 8px;
        }

        .cat-faq .section-subtitle {
            font-size: 15px;
            color: var(--color-text-secondary);
            text-align: center;
            margin-bottom: 40px;
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--color-border);
            padding: 20px 0;
        }

        .faq-item:first-child {
            border-top: 1px solid var(--color-border);
        }

        .faq-question {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            padding: 0;
        }

        .faq-question .faq-icon {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            position: relative;
            transition: transform 0.3s ease;
        }

        .faq-question .faq-icon::before,
        .faq-question .faq-icon::after {
            content: "";
            position: absolute;
            background: var(--color-primary);
            border-radius: 1px;
        }

        .faq-question .faq-icon::before {
            width: 12px;
            height: 2px;
            top: 11px;
            left: 6px;
        }

        .faq-question .faq-icon::after {
            width: 2px;
            height: 12px;
            top: 6px;
            left: 11px;
            transition: opacity 0.2s ease;
        }

        .faq-item.active .faq-question .faq-icon::after {
            opacity: 0;
        }

        .faq-item.active .faq-question {
            color: var(--color-primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0;
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding-top: 14px;
        }

        /* CTA 窄横幅 */
        .cat-cta {
            padding: 0 0 72px;
        }

        .cat-cta-inner {
            background: var(--color-primary-light);
            border-left: 4px solid var(--color-primary);
            border-radius: var(--radius-md);
            padding: 40px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .cat-cta-inner .cta-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 6px;
        }

        .cat-cta-inner .cta-desc {
            font-size: 15px;
            color: var(--color-text-secondary);
        }

        .cat-cta-inner .btn {
            flex-shrink: 0;
        }

        /* 页脚 */
        .site-footer {
            background: var(--color-primary-dark);
            color: #fff;
            padding: 64px 0 0;
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand .footer-logo svg {
            width: 38px;
            height: 38px;
        }

        .footer-brand .footer-logo span {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.8;
            max-width: 320px;
            margin-bottom: 0;
        }

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

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

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

        .footer-col ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.8;
        }

        .footer-col .footer-contact-list li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .footer-col .footer-contact-list svg {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
            margin-top: 4px;
            opacity: 0.85;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }

        /* 页面主体基础 */
        .page-category main {
            min-height: 60vh;
        }

        @media screen and (max-width: 1024px) {
            .header-main {
                gap: 16px;
            }

            .nav-menu {
                gap: 16px;
            }

            .header-search {
                flex-basis: 280px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }

            .banner-stats {
                gap: 28px;
            }

            .banner-stats .stat-num {
                font-size: 28px;
            }

            .category-banner-inner {
                flex-direction: column;
                align-items: flex-start;
            }

            .content-cards {
                gap: 18px;
            }
        }

        @media screen and (max-width: 840px) {
            .nav-menu {
                display: none;
            }

            .header-search {
                display: none;
            }

            .btn-header {
                display: none;
            }

            .hamburger {
                display: inline-flex;
                margin-left: auto;
            }

            .header-main {
                height: 64px;
            }

            .logo span {
                font-size: 20px;
            }

            .category-index {
                position: static;
                margin-bottom: 32px;
            }

            .category-index .index-list {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 8px;
            }

            .category-index .index-list a {
                border-left: none;
                border-bottom: 2px solid transparent;
                padding: 6px 12px;
            }

            .category-index .index-list a.active {
                border-bottom-color: var(--color-primary);
            }

            .category-index .index-note {
                display: none;
            }
        }

        @media screen and (max-width: 640px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .top-toolbar {
                height: 32px;
            }

            .toolbar-text {
                font-size: 11px;
            }

            .toolbar-links a {
                font-size: 11px;
            }

            .category-banner {
                padding: 40px 0 36px;
            }

            .category-banner h1 {
                font-size: 26px;
            }

            .category-banner .banner-desc {
                font-size: 14px;
            }

            .banner-stats {
                gap: 20px;
                width: 100%;
                justify-content: flex-start;
            }

            .banner-stats .stat-num {
                font-size: 24px;
            }

            .banner-stats .stat-label {
                font-size: 12px;
            }

            .content-cards {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .news-card .card-body {
                padding: 16px;
            }

            .pagination {
                gap: 4px;
            }

            .pagination a,
            .pagination span {
                min-width: 34px;
                height: 34px;
                font-size: 13px;
                padding: 0 8px;
            }

            .cat-faq .section-subtitle {
                font-size: 14px;
            }

            .cat-cta-inner {
                padding: 28px 20px;
                flex-direction: column;
                align-items: flex-start;
            }

            .cat-cta-inner .btn {
                width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

        @media screen and (min-width: 1440px) {
            .grid-container {
                max-width: 1360px;
            }
        }

/* roulang page: article */
:root {
            --color-primary: #1B7A43;
            --color-primary-dark: #145A32;
            --color-primary-light: #E8F3EC;
            --color-accent: #E8A33D;
            --color-danger: #C8432F;
            --color-bg: #F7F9F8;
            --color-surface: #FFFFFF;
            --color-surface-alt: #F0F5F1;
            --color-text: #1F2A37;
            --color-text-secondary: #5B6B73;
            --color-border: #E3EAE5;
            --color-dark-section: #1F2A37;
            --shadow-card: 0 4px 20px rgba(31,42,55,0.06);
            --shadow-card-hover: 0 12px 32px rgba(31,42,55,0.12);
            --shadow-float: 0 12px 40px rgba(27,122,67,0.18);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --space-section: clamp(64px, 8vw, 112px);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

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

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

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 1rem;
        }

        ul,
        ol {
            list-style: none;
        }

        .grid-container {
            max-width: 1280px;
            padding-left: 32px;
            padding-right: 32px;
        }

        @media (max-width: 640px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 24px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: 1.5px solid transparent;
            cursor: pointer;
            transition: all 0.25s ease;
            text-align: center;
            line-height: 1.2;
            white-space: nowrap;
        }

        .btn:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

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

        .btn-primary:hover {
            background: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(27, 122, 67, 0.2);
        }

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

        .btn-outline:hover {
            background: var(--color-primary-light);
        }

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

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

        .btn-block {
            width: 100%;
        }

        .btn-sm {
            height: 36px;
            padding: 0 16px;
            font-size: 14px;
        }

        .top-toolbar {
            background: var(--color-surface-alt);
            border-bottom: 1px solid var(--color-border);
            font-size: 13px;
            color: var(--color-text-secondary);
            height: 38px;
        }

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

        .toolbar-links {
            display: flex;
            align-items: center;
            gap: 20px;
        }

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

        .toolbar-links a:hover {
            color: var(--color-primary);
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-surface);
            box-shadow: 0 2px 12px rgba(31, 42, 55, 0.05);
            border-bottom: 1px solid var(--color-border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            min-height: 78px;
            gap: 24px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-mark {
            width: 38px;
            height: 38px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.02em;
            line-height: 1.1;
        }

        .logo-sub {
            font-size: 13px;
            font-weight: 400;
            color: var(--color-text-secondary);
            margin-left: 4px;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
            margin: 0;
            padding: 0;
            background: transparent;
            flex-wrap: nowrap;
        }

        .nav-menu li {
            margin: 0;
        }

        .nav-menu a {
            display: block;
            position: relative;
            padding: 10px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            border-radius: var(--radius-sm);
            transition: color 0.2s ease;
        }

        .nav-menu a:hover {
            color: var(--color-primary);
        }

        .nav-menu a.active {
            color: var(--color-primary);
            font-weight: 600;
        }

        .nav-menu a.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: -4px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
        }

        .search-area {
            display: flex;
            align-items: center;
            gap: 14px;
            flex: 1;
            justify-content: center;
        }

        .search-box {
            flex: 0 1 360px;
            min-width: 200px;
            display: flex;
            align-items: center;
            gap: 8px;
            height: 44px;
            background: var(--color-surface-alt);
            border: 2px solid transparent;
            border-radius: 22px;
            padding: 0 16px;
            transition: all 0.25s ease;
        }

        .search-box:focus-within {
            background: #fff;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 4px rgba(27, 122, 67, 0.12);
        }

        .search-icon {
            width: 16px;
            height: 16px;
            color: var(--color-text-secondary);
            flex-shrink: 0;
        }

        .search-box input {
            flex: 1;
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            color: var(--color-text);
            min-width: 0;
        }

        .search-box input::placeholder {
            color: #8A989F;
        }

        .header-cta {
            flex-shrink: 0;
        }

        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            background: none;
            border: none;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }

        .menu-toggle span {
            width: 22px;
            height: 2px;
            background: var(--color-text);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

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

        .mobile-drawer {
            position: fixed;
            top: 0;
            right: 0;
            bottom: 0;
            width: min(380px, 88vw);
            background: #fff;
            z-index: 1100;
            padding: 80px 28px 32px;
            transform: translateX(100%);
            transition: transform 0.35s ease;
            box-shadow: -8px 0 32px rgba(31, 42, 55, 0.12);
            overflow-y: auto;
        }

        .mobile-drawer.open {
            transform: translateX(0);
        }

        .drawer-close {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 44px;
            height: 44px;
            background: none;
            border: none;
            font-size: 30px;
            cursor: pointer;
            color: var(--color-text-secondary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.2s ease, color 0.2s ease;
        }

        .drawer-close:hover {
            background: var(--color-surface-alt);
            color: var(--color-primary);
        }

        .drawer-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--color-surface-alt);
            border-radius: 8px;
            padding: 0 14px;
            height: 48px;
            margin-bottom: 32px;
            border: 2px solid transparent;
            transition: all 0.2s ease;
        }

        .drawer-search:focus-within {
            border-color: var(--color-primary);
            background: #fff;
        }

        .drawer-search input {
            border: none;
            outline: none;
            background: transparent;
            flex: 1;
            font-size: 15px;
            min-width: 0;
        }

        .drawer-search svg {
            width: 18px;
            height: 18px;
            color: var(--color-text-secondary);
            flex-shrink: 0;
        }

        .drawer-menu {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .drawer-menu a {
            font-size: 17px;
            padding: 14px 12px;
            color: var(--color-text);
            border-radius: var(--radius-sm);
            font-weight: 500;
            transition: all 0.2s ease;
        }

        .drawer-menu a:hover,
        .drawer-menu a.active {
            background: var(--color-primary-light);
            color: var(--color-primary);
        }

        .drawer-cta {
            margin-top: 32px;
            width: 100%;
        }

        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(15, 25, 20, 0.5);
            z-index: 1050;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.35s ease;
        }

        .drawer-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }

        .article-banner {
            position: relative;
            padding: 64px 0 56px;
            background: linear-gradient(180deg, rgba(247, 249, 248, 0.93) 0%, rgba(247, 249, 248, 0.88) 100%), url('/assets/images/backpic/back-1.webp') center / cover;
            border-bottom: 1px solid var(--color-border);
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            font-size: 13px;
            color: var(--color-text-secondary);
            gap: 8px;
            margin-bottom: 20px;
        }

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

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

        .breadcrumb .sep {
            color: #B9C2C8;
        }

        .breadcrumb .current {
            color: var(--color-text);
            max-width: 300px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .article-badge {
            display: inline-flex;
            padding: 5px 14px;
            background: rgba(232, 163, 61, 0.15);
            color: #B9770E;
            font-size: 13px;
            font-weight: 600;
            border-radius: 4px;
            letter-spacing: 0.02em;
            margin-bottom: 16px;
        }

        .article-banner h1 {
            font-size: clamp(30px, 4vw, 42px);
            line-height: 1.3;
            color: var(--color-text);
            font-weight: 700;
            margin-bottom: 18px;
            max-width: 760px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 0;
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-bottom: 28px;
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
        }

        .article-meta span + span {
            margin-left: 16px;
        }

        .article-meta span + span::before {
            content: "";
            display: inline-block;
            width: 3px;
            height: 3px;
            background: #B9C2C8;
            border-radius: 50%;
            margin-right: 16px;
        }

        .article-summary {
            font-size: 16px;
            line-height: 1.9;
            color: var(--color-text-secondary);
            border-left: 3px solid var(--color-primary);
            background: rgba(255, 255, 255, 0.72);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            padding: 18px 24px;
            max-width: 760px;
        }

        .article-body-wrap {
            background: var(--color-surface);
            padding: 56px 0 72px;
        }

        .article-body {
            max-width: 760px;
            margin: 0 auto;
            font-size: 16px;
            line-height: 1.9;
            color: var(--color-text);
        }

        .article-body p {
            margin-bottom: 24px;
        }

        .article-body h2 {
            font-size: 22px;
            font-weight: 700;
            margin: 40px 0 16px;
            padding-left: 12px;
            border-left: 3px solid var(--color-primary);
            line-height: 1.35;
        }

        .article-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin: 32px 0 12px;
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            cursor: zoom-in;
            box-shadow: var(--shadow-card);
        }

        .article-body blockquote {
            background: var(--color-surface-alt);
            border-left: 4px solid var(--color-accent);
            padding: 20px 24px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            font-size: 15px;
            color: var(--color-text-secondary);
            margin: 28px 0;
        }

        .article-body blockquote p {
            margin-bottom: 8px;
        }

        .article-body blockquote p:last-child {
            margin-bottom: 0;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 24px 24px;
            padding: 0;
        }

        .article-body ul {
            list-style: disc;
        }

        .article-body ol {
            list-style: decimal;
        }

        .article-body li {
            margin-bottom: 8px;
        }

        .article-body a {
            color: var(--color-primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body a:hover {
            color: var(--color-primary-dark);
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 28px 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
            font-size: 14px;
            background: #fff;
        }

        .article-body th,
        .article-body td {
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid var(--color-border);
        }

        .article-body th {
            background: var(--color-primary-light);
            color: var(--color-primary-dark);
            font-weight: 600;
        }

        .article-body tbody tr:nth-child(even) {
            background: #FAFCFB;
        }

        .article-body iframe {
            max-width: 100%;
            border-radius: var(--radius-md);
            margin: 24px 0;
        }

        .article-pagination {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-top: 56px;
            padding-top: 28px;
            border-top: 1px solid var(--color-border);
            max-width: 760px;
            margin-left: auto;
            margin-right: auto;
        }

        .pagination-link,
        .back-list-link {
            font-size: 14px;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            border: 1.5px solid var(--color-border);
            color: var(--color-text-secondary);
            transition: all 0.2s ease;
            background: #fff;
        }

        .pagination-link:hover,
        .back-list-link:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: var(--color-primary-light);
        }

        .back-list-link {
            border-color: var(--color-primary);
            color: var(--color-primary);
            font-weight: 500;
        }

        .back-list-link:hover {
            background: var(--color-primary);
            color: #fff;
        }

        .related-section {
            padding: var(--space-section) 0;
            background: var(--color-surface-alt);
            border-top: 1px solid var(--color-border);
        }

        .related-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
        }

        .related-head h2 {
            font-size: clamp(24px, 3vw, 30px);
            font-weight: 700;
            color: var(--color-text);
        }

        .more-link {
            font-size: 14px;
            color: var(--color-primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .more-link:hover {
            color: var(--color-primary-dark);
        }

        .related-card {
            display: block;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.3s ease;
            height: 100%;
        }

        .related-card:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .related-img {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--color-primary-light);
        }

        .related-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-accent);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 4px;
            letter-spacing: 0.02em;
        }

        .related-body {
            padding: 16px 18px 18px;
        }

        .related-body h3 {
            font-size: 15px;
            font-weight: 600;
            line-height: 1.6;
            margin-bottom: 12px;
            color: var(--color-text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 48px;
            transition: color 0.2s ease;
        }

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

        .card-date {
            font-size: 12px;
            color: var(--color-text-secondary);
        }

        .article-cta {
            padding: 56px 0;
            background: var(--color-bg);
            border-top: 1px solid var(--color-border);
        }

        .article-cta-inner {
            background: var(--color-primary-light);
            border-left: 4px solid var(--color-primary);
            padding: 28px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            flex-wrap: wrap;
        }

        .article-cta-inner p {
            font-size: 16px;
            color: var(--color-text);
            flex: 1;
            min-width: 240px;
            line-height: 1.7;
        }

        .not-found-section {
            padding: 100px 0;
            text-align: center;
            background: var(--color-surface);
            min-height: 60vh;
        }

        .not-found-section h1 {
            font-size: clamp(28px, 4vw, 36px);
            margin-bottom: 16px;
            color: var(--color-text);
        }

        .not-found-section p {
            color: var(--color-text-secondary);
            margin-bottom: 24px;
        }

        .site-footer {
            background: var(--color-primary-dark);
            color: #fff;
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.8;
            margin-top: 16px;
            max-width: 320px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-logo svg {
            width: 36px;
            height: 36px;
        }

        .footer-logo span {
            font-size: 22px;
            font-weight: 700;
        }

        .footer-col h4 {
            font-size: 15px;
            margin-bottom: 18px;
            color: #fff;
            font-weight: 600;
        }

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

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

        .footer-col a {
            color: rgba(255, 255, 255, 0.8);
            font-size: 14px;
            line-height: 2.2;
            transition: color 0.2s ease;
        }

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

        .footer-contact-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.8);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .footer-contact-list svg {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
            opacity: 0.8;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            flex-wrap: wrap;
        }

        .float-cta {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 1200;
        }

        .float-btn {
            width: 56px;
            height: 56px;
            background: var(--color-primary);
            border: none;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            cursor: pointer;
            box-shadow: var(--shadow-float);
            transition: all 0.3s ease;
        }

        .float-btn:hover {
            background: var(--color-primary-dark);
            transform: translateY(-3px);
        }

        .float-btn svg {
            width: 24px;
            height: 24px;
        }

        .float-dialog {
            position: fixed;
            right: 24px;
            bottom: 92px;
            width: 340px;
            max-width: calc(100vw - 32px);
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: 0 12px 40px rgba(31, 42, 55, 0.16);
            padding: 24px;
            display: none;
            z-index: 1200;
        }

        .float-cta.open .float-dialog {
            display: block;
            animation: floatIn 0.25s ease;
        }

        @keyframes floatIn {
            from {
                opacity: 0;
                transform: translateY(8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .float-dialog h3 {
            font-size: 18px;
            margin-bottom: 16px;
            color: var(--color-text);
        }

        .float-dialog input,
        .float-dialog textarea {
            width: 100%;
            height: 44px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: 0 16px;
            font-size: 14px;
            margin-bottom: 12px;
            outline: none;
            transition: all 0.2s ease;
            background: #fff;
            color: var(--color-text);
        }

        .float-dialog textarea {
            height: 100px;
            padding: 12px 16px;
            resize: none;
        }

        .float-dialog input:focus,
        .float-dialog textarea:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(27, 122, 67, 0.12);
        }

        @media (max-width: 900px) {
            .nav-menu,
            .header-cta {
                display: none;
            }

            .search-area {
                flex: 1;
                justify-content: flex-end;
            }

            .search-box {
                flex: 0 1 280px;
            }

            .menu-toggle {
                display: flex;
            }

            .header-inner {
                gap: 12px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 640px) {
            .top-toolbar {
                display: none;
            }

            .header-inner {
                min-height: 64px;
                gap: 8px;
            }

            .logo-text {
                font-size: 20px;
            }

            .logo-mark {
                width: 32px;
                height: 32px;
            }

            .search-box {
                flex: 1;
                min-width: 0;
                height: 40px;
                padding: 0 14px;
            }

            .search-box input {
                font-size: 13px;
            }

            .menu-toggle {
                width: 40px;
                height: 40px;
            }

            .article-banner {
                padding: 40px 0 36px;
            }

            .article-banner h1 {
                font-size: clamp(26px, 6vw, 32px);
            }

            .article-summary {
                padding: 14px 18px;
                font-size: 15px;
            }

            .article-body-wrap {
                padding: 36px 0 44px;
            }

            .article-pagination {
                flex-wrap: wrap;
                margin-top: 40px;
            }

            .back-list-link {
                order: -1;
                width: 100%;
                text-align: center;
            }

            .pagination-link {
                flex: 1;
                text-align: center;
            }

            .article-cta-inner {
                padding: 20px;
            }

            .article-cta {
                padding: 36px 0;
            }

            .related-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

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

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

            .float-cta {
                right: 16px;
                bottom: 16px;
            }

            .float-btn {
                width: 48px;
                height: 48px;
            }

            .float-btn svg {
                width: 20px;
                height: 20px;
            }

            .float-dialog {
                right: 16px;
                bottom: 76px;
                width: calc(100vw - 32px);
            }
        }

        @media (max-width: 480px) {
            .logo-sub {
                display: none;
            }

            .menu-toggle {
                width: 38px;
                height: 38px;
            }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
:root {
    --color-primary: #1B7A43;
    --color-primary-dark: #145A32;
    --color-primary-light: #E8F3EC;
    --color-accent: #E8A33D;
    --color-danger: #C8432F;
    --color-bg: #F7F9F8;
    --color-surface: #FFFFFF;
    --color-surface-alt: #F0F5F1;
    --color-text: #1F2A37;
    --color-text-secondary: #5B6B73;
    --color-border: #E3EAE5;
    --color-dark-section: #1F2A37;
    --shadow-card: 0 4px 20px rgba(31,42,55,0.06);
    --shadow-card-hover: 0 12px 32px rgba(31,42,55,0.12);
    --shadow-float: 0 12px 40px rgba(27,122,67,0.18);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --space-section: clamp(64px, 8vw, 112px);
}

/* ===== Reset / 基础 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: color 0.2s ease; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }

/* ===== 容器 ===== */
.grid-container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }

/* ===== 导航 ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-surface);
    box-shadow: var(--shadow-card);
}
.toolbar {
    background: var(--color-surface-alt);
    height: 36px;
    display: flex;
    align-items: center;
    font-size: 12px;
    color: var(--color-text-secondary);
}
.toolbar-inner { display: flex; justify-content: space-between; align-items: center; width: 100%; }
.toolbar-links a { margin-left: 16px; color: var(--color-text-secondary); }
.toolbar-links a:hover { color: var(--color-primary); }
.main-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
    gap: 20px;
}
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo svg { width: 36px; height: 36px; }
.logo span { font-size: 22px; font-weight: 700; color: var(--color-primary); }
.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-menu a {
    display: block;
    padding: 8px 14px;
    font-size: 15px;
    color: var(--color-text);
    border-bottom: 2px solid transparent;
    transition: color 0.2s, border-color 0.2s;
}
.nav-menu a:hover { color: var(--color-primary); }
.nav-menu a.active { color: var(--color-primary); border-bottom-color: var(--color-primary); font-weight: 500; }
.search-box {
    flex: 1;
    max-width: 420px;
    display: flex;
    align-items: center;
    background: var(--color-surface-alt);
    border-radius: 16px;
    padding: 0 14px;
    height: 44px;
    transition: box-shadow 0.2s;
}
.search-box svg { width: 16px; height: 16px; margin-right: 8px; color: var(--color-text-secondary); flex-shrink: 0; }
.search-box input {
    border: none;
    outline: none;
    background: transparent;
    flex: 1;
    font-size: 14px;
    color: var(--color-text);
}
.search-box input::placeholder { color: var(--color-text-secondary); }
.search-box:focus-within { box-shadow: 0 0 0 2px var(--color-primary); }
.nav-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: #fff;
    border-radius: var(--radius-sm);
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    flex-shrink: 0;
    transition: background 0.2s, transform 0.2s;
}
.nav-cta:hover { background: var(--color-primary-dark); color: #fff; transform: translateY(-1px); }
.hamburger { display: none; background: none; border: none; cursor: pointer; padding: 8px; }

/* 移动端抽屉 */
.drawer {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(15,25,20,0.5);
    z-index: 300;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}
.drawer.open { opacity: 1; pointer-events: auto; }
.drawer-panel {
    position: absolute;
    top: 0; right: 0;
    width: min(88%, 360px);
    height: 100%;
    background: var(--color-surface);
    padding: 24px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
}
.drawer.open .drawer-panel { transform: translateX(0); }
.drawer-close {
    position: absolute;
    top: 14px; right: 14px;
    width: 40px; height: 40px;
    border: none;
    background: var(--color-surface-alt);
    border-radius: 8px;
    cursor: pointer;
    font-size: 18px;
    color: var(--color-text);
}
.drawer-menu a { display: block; padding: 14px 0; font-size: 16px; border-bottom: 1px solid var(--color-border); }
.drawer-menu a:hover { color: var(--color-primary); }
.drawer-menu a.active { color: var(--color-primary); font-weight: 600; }
.drawer-search { margin-bottom: 24px; }
.drawer-search .search-box { max-width: 100%; }

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    padding: 0 24px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: 1.5px solid transparent;
    transition: all 0.2s ease;
    white-space: nowrap;
}
.btn:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
.btn-primary { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.btn-primary:hover { background: var(--color-primary-dark); border-color: var(--color-primary-dark); color: #fff; transform: translateY(-1px); }
.btn-outline { background: var(--color-surface); color: var(--color-primary); border-color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary-light); border-color: var(--color-primary); }

/* ===== 分类页横幅 ===== */
.category-hero {
    position: relative;
    padding: 56px 0 48px;
    background: var(--color-surface-alt);
    overflow: hidden;
}
.category-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    opacity: 0.12;
}
.category-hero .grid-container { position: relative; z-index: 1; }
.category-hero-content { display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; flex-wrap: wrap; }
.category-title { font-size: clamp(28px, 4vw, 36px); line-height: 1.35; color: var(--color-primary); margin-bottom: 12px; font-weight: 700; }
.category-desc { color: var(--color-text-secondary); font-size: 14px; max-width: 640px; }
.category-stats { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.stat-item {
    text-align: center;
    padding: 12px 20px;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
}
.stat-item b { display: block; font-size: 26px; color: var(--color-primary); line-height: 1.2; }
.stat-item span { font-size: 12px; color: var(--color-text-secondary); }

/* ===== 分类页主体 ===== */
.category-main { padding: 64px 0; }
.category-sidebar { padding-bottom: 24px; }
.sidebar-inner {
    position: sticky;
    top: 100px;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    padding: 22px 16px;
    box-shadow: var(--shadow-card);
}
.sidebar-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 16px;
    padding: 0 6px 12px;
    border-bottom: 1px solid var(--color-border);
}
.sidebar-links a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 12px;
    font-size: 14px;
    border-radius: var(--radius-sm);
    transition: background 0.2s;
}
.sidebar-links a:hover { background: var(--color-primary-light); color: var(--color-primary); }
.sidebar-links a span { color: var(--color-text-secondary); font-size: 12px; margin-left: 6px; }
.category-cards { padding-bottom: 24px; }
.card-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.cat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color 0.25s, box-shadow 0.25s;
    display: flex;
    flex-direction: column;
}
.cat-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-card); }
.cat-card-img { aspect-ratio: 16/9; overflow: hidden; background: var(--color-surface-alt); }
.cat-card-img img { width: 100%; height: 100%; object-fit: cover; }
.cat-card-body { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.cat-card-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; font-size: 12px; color: var(--color-text-secondary); }
.badge {
    display: inline-block;
    background: rgba(232,163,61,0.12);
    color: #B57B1C;
    font-size: 12px;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: 4px;
    line-height: 1.6;
}
.cat-card-title { font-size: 16px; font-weight: 600; margin-bottom: 8px; line-height: 1.5; color: var(--color-text); }
.cat-card-title:hover { color: var(--color-primary); }
.cat-card-excerpt {
    font-size: 13px;
    color: var(--color-text-secondary);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-top: auto;
}

/* ===== 分页 ===== */
.pagination-wrap { margin-top: 48px; display: flex; justify-content: center; }
.pagination { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.pagination a, .pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    font-size: 13px;
    color: var(--color-text);
    transition: all 0.2s;
}
.pagination a:hover { border-color: var(--color-primary); color: var(--color-primary); }
.pagination .current { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.pagination .ellipsis { border: none; background: transparent; }

/* ===== FAQ ===== */
.faq-section { padding: 64px 0 80px; background: var(--color-surface); }
.faq-title { font-size: clamp(24px, 3vw, 30px); font-weight: 700; text-align: center; margin-bottom: 40px; color: var(--color-text); }
.faq-wrap { max-width: 900px; margin: 0 auto; }
.accordion-item { border-bottom: 1px solid var(--color-border); }
.accordion-title {
    padding: 20px 0;
    font-size: 15px;
    font-weight: 500;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    color: var(--color-text);
    background: transparent;
    border: none;
    transition: color 0.2s;
}
.accordion-title:hover { color: var(--color-primary); }
.accordion-title::after {
    content: '+';
    font-size: 22px;
    color: var(--color-primary);
    transition: transform 0.3s;
    flex-shrink: 0;
    margin-left: 16px;
}
.accordion-title[aria-expanded="true"]::after { transform: rotate(45deg); }
.accordion-content {
    padding: 0 0 20px;
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.8;
    display: none;
}
.accordion-content.open { display: block; }

/* ===== CTA 横幅 ===== */
.category-cta { padding: 56px 0 80px; background: var(--color-surface-alt); }
.cta-banner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    background: var(--color-surface);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-md);
    padding: 32px 40px;
    box-shadow: var(--shadow-card);
    flex-wrap: wrap;
}
.cta-banner h3 { font-size: 20px; color: var(--color-primary); margin-bottom: 6px; }
.cta-banner p { font-size: 14px; color: var(--color-text-secondary); }
.cta-banner .btn { flex-shrink: 0; }

/* ===== 页脚 ===== */
.site-footer {
    background: var(--color-primary-dark);
    color: rgba(255,255,255,0.85);
    padding: 64px 0 0;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; padding-bottom: 48px; }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.footer-logo svg { width: 36px; height: 36px; }
.footer-logo span { font-size: 22px; font-weight: 700; color: #fff; }
.footer-brand p { font-size: 13px; line-height: 1.8; color: rgba(255,255,255,0.7); }
.footer-col h4 { font-size: 15px; margin-bottom: 16px; color: #fff; font-weight: 600; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul a { color: rgba(255,255,255,0.8); font-size: 13px; line-height: 2.2; }
.footer-col ul a:hover { color: var(--color-accent); }
.footer-contact-list li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255,255,255,0.8);
    margin-bottom: 10px;
}
.footer-contact-list svg { width: 16px; height: 16px; flex-shrink: 0; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.15);
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: rgba(255,255,255,0.6);
    gap: 12px;
    flex-wrap: wrap;
}

/* ===== 浮动 CTA ===== */
.float-cta {
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: 150;
}
.float-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--color-primary);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-float);
    transition: transform 0.25s, background 0.25s;
}
.float-btn:hover { transform: scale(1.05); background: var(--color-primary-dark); }
.float-btn svg { width: 22px; height: 22px; fill: none; stroke: #fff; }
.float-panel {
    position: absolute;
    bottom: 72px;
    right: 0;
    width: 320px;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
    padding: 24px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(10px);
    transition: opacity 0.3s, transform 0.3s;
}
.float-panel.open { opacity: 1; pointer-events: auto; transform: translateY(0); }
.float-panel h3 { font-size: 16px; margin-bottom: 16px; color: var(--color-text); }
.float-panel .form-field { margin-bottom: 12px; }
.float-panel label { display: block; font-size: 13px; color: var(--color-text-secondary); margin-bottom: 4px; }
.float-panel input,
.float-panel textarea {
    width: 100%;
    height: 44px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 0 12px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    background: var(--color-bg);
}
.float-panel textarea { height: 100px; padding: 10px 12px; resize: vertical; }
.float-panel input:focus,
.float-panel textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(27,122,67,0.15);
    background: #fff;
}
.float-panel .btn { width: 100%; margin-top: 6px; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .category-stats { margin-top: 16px; }
}
@media (max-width: 840px) {
    .nav-menu { display: none; }
    .hamburger { display: block; }
    .nav-cta { display: none; }
    .search-box { max-width: 100%; }
    .category-hero-content { flex-direction: column; align-items: flex-start; }
    .card-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .toolbar-links { display: none; }
    .main-nav { height: 64px; }
    .logo span { font-size: 18px; }
    .category-hero { padding: 40px 0 32px; }
    .category-title { font-size: 24px; }
    .category-stats { gap: 8px; }
    .stat-item { padding: 10px 14px; }
    .stat-item b { font-size: 20px; }
    .card-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .cta-banner { flex-direction: column; text-align: center; padding: 24px; }
    .float-cta { bottom: 16px; right: 16px; }
    .float-btn { width: 48px; height: 48px; }
    .float-panel { width: calc(100vw - 32px); }
    .pagination a, .pagination span { min-width: 32px; height: 32px; }
    .faq-section { padding: 48px 0; }
    .category-main { padding: 48px 0; }
    .category-cta { padding: 40px 0 56px; }
}

/* roulang page: category3 */
:root {
            --color-primary: #1B7A43;
            --color-primary-dark: #145A32;
            --color-primary-light: #E8F3EC;
            --color-accent: #E8A33D;
            --color-danger: #C8432F;
            --color-bg: #F7F9F8;
            --color-surface: #FFFFFF;
            --color-surface-alt: #F0F5F1;
            --color-text: #1F2A37;
            --color-text-secondary: #5B6B73;
            --color-border: #E3EAE5;
            --color-dark-section: #1F2A37;
            --shadow-card: 0 4px 20px rgba(31, 42, 55, 0.06);
            --shadow-card-hover: 0 12px 32px rgba(31, 42, 55, 0.12);
            --shadow-float: 0 12px 40px rgba(27, 122, 67, 0.18);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --space-section: clamp(64px, 8vw, 112px);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        .grid-container {
            max-width: 1200px;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .grid-container {
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 640px) {
            .container,
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all 0.25s ease;
            white-space: nowrap;
            border: 1.5px solid transparent;
            letter-spacing: 0.02em;
        }

        .btn:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        .btn-primary {
            background-color: var(--color-primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(27, 122, 67, 0.2);
        }

        .btn-primary:hover {
            background-color: var(--color-primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(27, 122, 67, 0.28);
        }

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

        .btn-outline:hover {
            background-color: var(--color-primary-light);
        }

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

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

        .btn-sm {
            height: 36px;
            padding: 0 16px;
            font-size: 14px;
        }

        .text-link {
            color: var(--color-primary);
            font-weight: 600;
            font-size: 15px;
            border-bottom: 1px solid var(--color-primary);
            padding-bottom: 2px;
        }

        .text-link:hover {
            color: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
        }

        .section {
            padding-top: var(--space-section);
            padding-bottom: var(--space-section);
        }

        .section-head {
            margin-bottom: 40px;
        }

        .section-head h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .section-head p {
            font-size: 15px;
            color: var(--color-text-secondary);
            max-width: 620px;
            line-height: 1.8;
        }

        .section-head.light h2 {
            color: #fff;
        }

        .section-head.light p {
            color: rgba(255, 255, 255, 0.7);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            height: 26px;
            padding: 0 12px;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary);
            background: var(--color-primary-light);
            border-radius: 4px;
            letter-spacing: 0.04em;
        }

        .badge-gold {
            background: rgba(232, 163, 61, 0.14);
            color: #B4781F;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            border-bottom: 1px solid var(--color-border);
        }

        .header-top {
            background: var(--color-surface-alt);
            height: 36px;
            border-bottom: 1px solid var(--color-border);
        }

        .header-top-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 36px;
            font-size: 12px;
            color: var(--color-text-secondary);
        }

        .header-top-links a {
            margin-left: 20px;
            color: var(--color-text-secondary);
        }

        .header-top-links a:hover {
            color: var(--color-primary);
        }

        .header-main {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
        }

        .header-main-inner {
            display: flex;
            align-items: center;
            gap: 24px;
            height: 76px;
            position: relative;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-logo svg {
            width: 40px;
            height: 40px;
        }

        .brand-logo span {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: 0.04em;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: 8px;
        }

        .nav-menu a {
            display: block;
            padding: 10px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            border-bottom: 2px solid transparent;
            border-radius: 4px 4px 0 0;
        }

        .nav-menu a:hover {
            color: var(--color-primary);
            background: var(--color-primary-light);
        }

        .nav-menu a.active {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
            font-weight: 600;
        }

        .header-search {
            flex: 1;
            max-width: 360px;
            margin-left: auto;
            position: relative;
        }

        .header-search svg {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            width: 18px;
            height: 18px;
            color: var(--color-text-secondary);
            pointer-events: none;
        }

        .header-search input {
            width: 100%;
            height: 42px;
            background: var(--color-surface-alt);
            border-radius: 16px;
            padding: 0 16px 0 42px;
            font-size: 14px;
            color: var(--color-text);
            border: 2px solid transparent;
            transition: border-color 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
        }

        .header-search input::placeholder {
            color: var(--color-text-secondary);
            font-size: 13px;
        }

        .header-search input:focus {
            background: #fff;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(27, 122, 67, 0.14);
        }

        .header-cta {
            flex-shrink: 0;
            height: 40px;
            padding: 0 20px;
            font-size: 14px;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            color: var(--color-text);
            background: var(--color-surface-alt);
            flex-shrink: 0;
        }

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

        .nav-toggle svg {
            width: 22px;
            height: 22px;
        }

        .nav-drawer {
            display: none;
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            padding: clamp(56px, 7vw, 96px) 0;
            background-image: linear-gradient(rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.92)), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center 30%;
            border-bottom: 1px solid var(--color-border);
        }

        .page-hero::after {
            content: '';
            position: absolute;
            right: -60px;
            bottom: -80px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(27, 122, 67, 0.04);
            pointer-events: none;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-bottom: 24px;
        }

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

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

        .breadcrumb span {
            color: var(--color-primary);
            font-weight: 500;
        }

        .page-hero .badge {
            margin-bottom: 16px;
        }

        .page-hero h1 {
            font-size: clamp(32px, 5vw, 48px);
            font-weight: 700;
            line-height: 1.25;
            color: var(--color-text);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .hero-desc {
            font-size: 16px;
            color: var(--color-text-secondary);
            line-height: 1.9;
            max-width: 540px;
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
        }

        .hero-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card-hover);
            background: #fff;
        }

        .hero-visual img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }

        .hero-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(31, 42, 55, 0) 60%, rgba(31, 42, 55, 0.45) 100%);
            pointer-events: none;
        }

        .hero-mini-stats {
            position: absolute;
            left: 20px;
            right: 20px;
            bottom: 16px;
            z-index: 2;
            display: flex;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(6px);
            border-radius: var(--radius-md);
            padding: 14px 10px;
            box-shadow: var(--shadow-card);
        }

        .hero-mini-stats div {
            flex: 1;
            text-align: center;
        }

        .hero-mini-stats strong {
            display: block;
            font-size: 22px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.3;
        }

        .hero-mini-stats span {
            font-size: 12px;
            color: var(--color-text-secondary);
        }

        /* ===== Domains ===== */
        .section-domains {
            background: var(--color-bg);
        }

        .domain-nav {
            position: sticky;
            top: 100px;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-card);
            margin-bottom: 32px;
        }

        .domain-nav-title {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--color-border);
        }

        .domain-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 9px 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-secondary);
            border-radius: 8px;
            line-height: 1.4;
        }

        .domain-nav a:hover {
            background: var(--color-primary-light);
            color: var(--color-primary);
        }

        .domain-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 28px 26px;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
            scroll-margin-top: 120px;
        }

        .domain-card:hover {
            border-color: rgba(27, 122, 67, 0.35);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .domain-card-icon {
            width: 48px;
            height: 48px;
            background: var(--color-primary-light);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
        }

        .domain-card-icon svg {
            width: 24px;
            height: 24px;
            stroke: var(--color-primary);
            fill: none;
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .domain-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .domain-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin-bottom: 18px;
            flex: 1;
        }

        .domain-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: auto;
        }

        .domain-tag {
            display: inline-flex;
            align-items: center;
            height: 24px;
            padding: 0 10px;
            font-size: 12px;
            font-weight: 500;
            color: var(--color-primary);
            background: var(--color-primary-light);
            border-radius: 4px;
        }

        /* ===== Method ===== */
        .section-method {
            background: var(--color-dark-section);
            color: #fff;
        }

        .method-steps {
            margin-top: 8px;
        }

        .method-step {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            height: 100%;
            position: relative;
            transition: background 0.25s ease, transform 0.25s ease;
        }

        .method-step:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-3px);
        }

        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--color-accent);
            color: #1F2A37;
            font-size: 16px;
            font-weight: 700;
            border-radius: 50%;
            margin-bottom: 16px;
        }

        .method-step h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .method-step p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.8;
        }

        /* ===== Scenarios ===== */
        .section-scenarios {
            background: #fff;
        }

        .scenario-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 30px 28px;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .scenario-card:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-card);
        }

        .scenario-card-icon {
            width: 44px;
            height: 44px;
            background: rgba(232, 163, 61, 0.14);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }

        .scenario-card-icon svg {
            width: 22px;
            height: 22px;
            stroke: #B4781F;
            fill: none;
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

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

        .scenario-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }

        /* ===== Stats ===== */
        .section-stats {
            background: var(--color-bg);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            padding: 40px 0;
        }

        .stat-item {
            text-align: center;
            border-right: 1px solid var(--color-border);
            padding: 16px 24px;
        }

        .stat-item:last-child {
            border-right: none;
        }

        .stat-item strong {
            display: block;
            font-size: clamp(36px, 4vw, 48px);
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-item span {
            font-size: 14px;
            color: var(--color-text-secondary);
        }

        /* ===== FAQ ===== */
        .section-faq {
            background: #fff;
        }

        .faq-item {
            border-bottom: 1px solid var(--color-border);
            margin-bottom: 0;
        }

        .faq-item:first-child {
            border-top: 1px solid var(--color-border);
        }

        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 20px 8px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            text-align: left;
            background: transparent;
            transition: color 0.2s ease;
        }

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

        .faq-q:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: -2px;
            border-radius: 4px;
        }

        .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--color-primary-light);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 400;
            flex-shrink: 0;
            transition: transform 0.3s ease, background-color 0.3s ease;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--color-primary);
            color: #fff;
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 8px;
        }

        .faq-item.active .faq-a {
            max-height: 400px;
            padding: 0 8px 24px;
        }

        .faq-a p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .section-cta {
            background: var(--color-primary-light);
            border-radius: var(--radius-lg);
            margin: var(--space-section) auto;
            padding: 56px 48px;
            text-align: center;
            max-width: 1100px;
        }

        .section-cta-inner {
            max-width: 680px;
            margin: 0 auto;
        }

        .section-cta h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
        }

        .section-cta p {
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin-bottom: 24px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-primary-dark);
            color: rgba(255, 255, 255, 0.85);
            padding-top: 64px;
            padding-bottom: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand .footer-logo svg {
            width: 36px;
            height: 36px;
        }

        .footer-brand .footer-logo span {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }

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

        .footer-col li {
            font-size: 14px;
            line-height: 2.2;
        }

        .footer-col a {
            color: rgba(255, 255, 255, 0.78);
        }

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

        .footer-contact-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            line-height: 1.6;
            padding: 6px 0;
        }

        .footer-contact-list svg {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
            color: var(--color-accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.16);
            padding: 22px 0;
        }

        .footer-bottom-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            flex-wrap: wrap;
        }

        /* ===== Mobile Nav Drawer ===== */
        .nav-drawer {
            display: block;
            position: fixed;
            top: 0;
            right: 0;
            width: 100%;
            height: 100%;
            background: rgba(15, 25, 20, 0.5);
            z-index: 200;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }

        .nav-drawer-panel {
            position: absolute;
            top: 0;
            right: 0;
            width: 100%;
            max-width: 420px;
            height: 100%;
            background: #fff;
            padding: 24px;
            transform: translateX(100%);
            transition: transform 0.35s ease;
            overflow-y: auto;
            box-shadow: var(--shadow-float);
        }

        .nav-drawer.open {
            opacity: 1;
            visibility: visible;
        }

        .nav-drawer.open .nav-drawer-panel {
            transform: translateX(0);
        }

        .nav-drawer-close {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: var(--color-surface-alt);
            color: var(--color-text);
            cursor: pointer;
            font-size: 22px;
            z-index: 2;
        }

        .nav-drawer-close:hover {
            background: var(--color-primary-light);
            color: var(--color-primary);
        }

        .nav-drawer-search {
            margin-bottom: 24px;
            margin-top: 48px;
        }

        .nav-drawer-search input {
            width: 100%;
            height: 46px;
            background: var(--color-surface-alt);
            border-radius: 12px;
            padding: 0 18px;
            font-size: 14px;
            border: 2px solid transparent;
            transition: border-color 0.25s ease;
        }

        .nav-drawer-search input:focus {
            border-color: var(--color-primary);
            background: #fff;
        }

        .nav-drawer-menu {
            margin-bottom: 24px;
        }

        .nav-drawer-menu a {
            display: block;
            padding: 14px 18px;
            font-size: 16px;
            font-weight: 500;
            color: var(--color-text);
            border-radius: 8px;
            margin-bottom: 4px;
        }

        .nav-drawer-menu a:hover {
            background: var(--color-primary-light);
            color: var(--color-primary);
        }

        .nav-drawer-menu a.active {
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-weight: 600;
        }

        .nav-drawer .btn {
            width: 100%;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .header-main-inner {
                gap: 16px;
            }

            .nav-menu {
                display: none;
            }

            .header-search {
                max-width: 260px;
            }

            .nav-toggle {
                display: flex;
                margin-left: 4px;
            }

            .header-cta {
                display: none;
            }

            .domain-nav {
                position: relative;
                top: auto;
            }

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

            .stat-item {
                border-right: none;
                border-bottom: 1px solid var(--color-border);
            }

            .stat-item:nth-child(n+3) {
                border-bottom: none;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 840px) {
            .header-search {
                display: none;
            }

            .header-main-inner {
                height: 64px;
            }

            .brand-logo span {
                font-size: 18px;
            }

            .brand-logo svg {
                width: 34px;
                height: 34px;
            }
        }

        @media (max-width: 640px) {
            .section {
                --space-section: 56px;
            }

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

            .page-hero h1 {
                font-size: 32px;
            }

            .hero-desc {
                font-size: 15px;
            }

            .hero-actions {
                gap: 16px;
                flex-direction: column;
                align-items: flex-start;
            }

            .hero-visual {
                margin-top: 24px;
            }

            .stats-grid {
                grid-template-columns: 1fr;
                padding: 24px 0;
            }

            .stat-item {
                border-bottom: 1px solid var(--color-border);
                padding: 20px;
            }

            .stat-item:last-child {
                border-bottom: none;
            }

            .section-cta {
                margin: 40px 16px;
                padding: 40px 24px;
                border-radius: var(--radius-md);
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

        @media (min-width: 1440px) {
            .grid-container {
                max-width: 1280px;
            }
        }