/* roulang page: index */
:root {
            --brand: #0E7C66;
            --accent: #14B8A6;
            --space: #FAFAF8;
            --text-main: #1A1A1A;
            --text-body: #3D3D3D;
            --text-sub: #6E6E6E;
            --border-soft: #E5E5E0;
            --amber: #F59E0B;
            --card-radius: 8px;
            --card-shadow: 0 1px 4px rgba(0,0,0,0.04), 0 4px 16px rgba(0,0,0,0.04);
        }

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

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background: var(--space);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }

        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* 导航 */
        .site-header {
            background: rgba(250,250,248,0.95);
            border-bottom: 1px solid var(--border-soft);
            position: sticky;
            top: 0;
            z-index: 50;
            backdrop-filter: blur(8px);
        }

        .nav-link {
            position: relative;
            color: #4B5563;
            font-size: 0.875rem;
            font-weight: 500;
            padding: 0.25rem 0;
            transition: color .2s;
        }

        .nav-link:hover {
            color: var(--brand);
        }

        .nav-link.active {
            color: var(--brand);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--brand);
            border-radius: 2px;
        }

        .mobile-menu {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border-soft);
            padding: 0.75rem 1.5rem 1.25rem;
        }

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

        .mobile-menu a {
            display: block;
            padding: 0.75rem 0;
            font-size: 0.95rem;
            color: var(--text-body);
            border-bottom: 1px solid #f0f0ee;
        }

        .mobile-menu a:last-child {
            border-bottom: none;
        }

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

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 80vh;
            display: flex;
            align-items: center;
            overflow: hidden;
            background-color: var(--space);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 0;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr;
            gap: 3rem;
            align-items: center;
            width: 100%;
        }

        @media (min-width: 1024px) {
            .hero-content {
                grid-template-columns: 1.1fr 0.9fr;
            }
        }

        .hero-text h1 {
            font-size: 2.25rem;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--text-main);
        }

        @media (min-width: 768px) {
            .hero-text h1 {
                font-size: 3rem;
            }
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-sub);
            margin-top: 1.25rem;
            line-height: 1.6;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 2rem;
        }

        .hero-note {
            margin-top: 1.75rem;
            font-size: 0.75rem;
            letter-spacing: 0.12em;
            color: var(--text-sub);
            text-transform: uppercase;
        }

        .hero-visual {
            display: none;
            position: relative;
            justify-content: center;
            align-items: center;
        }

        @media (min-width: 1024px) {
            .hero-visual {
                display: flex;
            }
        }

        .hero-visual .main-img {
            width: 320px;
            height: 320px;
            object-fit: cover;
            border-radius: 9999px;
            border: 10px solid #fff;
            box-shadow: 0 8px 32px rgba(0,0,0,0.10);
        }

        .hero-visual .ring-deco {
            position: absolute;
            width: 380px;
            height: 380px;
            border-radius: 9999px;
            border: 1px solid var(--border-soft);
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
        }

        .hero-visual .dot-deco {
            position: absolute;
            width: 72px;
            height: 72px;
            border-radius: 9999px;
            background: rgba(20,184,166,0.15);
            border: 1px solid rgba(20,184,166,0.3);
            top: 12%;
            right: 8%;
        }

        .hero-visual .dot-deco-2 {
            position: absolute;
            width: 40px;
            height: 40px;
            border-radius: 9999px;
            background: rgba(245,158,11,0.2);
            border: 1px solid rgba(245,158,11,0.35);
            bottom: 16%;
            left: 6%;
        }

        /* 按钮 */
        .btn-primary {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 0.875rem;
            font-weight: 500;
            border-radius: 6px;
            padding: 0.75rem 1.75rem;
            transition: background .2s, box-shadow .2s;
        }

        .btn-primary:hover {
            background: var(--brand);
            box-shadow: 0 4px 12px rgba(20,184,166,0.25);
        }

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

        .btn-outline {
            display: inline-block;
            border: 1px solid var(--brand);
            color: var(--brand);
            font-size: 0.875rem;
            font-weight: 500;
            border-radius: 6px;
            padding: 0.75rem 1.75rem;
            transition: background .2s, color .2s;
        }

        .btn-outline:hover {
            background: var(--brand);
            color: #fff;
        }

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

        .btn-sm {
            padding: 0.5rem 1.25rem;
            font-size: 0.8rem;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            color: var(--brand);
            font-size: 0.9rem;
            font-weight: 500;
            transition: gap .2s;
        }

        .text-link:hover {
            gap: 0.5rem;
        }

        /* 信任条 */
        .trust-bar {
            border-top: 1px solid var(--border-soft);
            border-bottom: 1px solid var(--border-soft);
            background: #f6f6f3;
            padding: 0.75rem 0;
        }

        .trust-items {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem 3rem;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--text-sub);
            letter-spacing: 0.02em;
        }

        .trust-items span {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .trust-items .icon {
            display: inline-block;
            width: 6px;
            height: 6px;
            border-radius: 9999px;
            background: var(--accent);
        }

        /* 板块间距 */
        .section {
            padding: 4.5rem 0;
        }

        @media (min-width: 768px) {
            .section {
                padding: 6rem 0;
            }
        }

        .section-label {
            font-size: 0.75rem;
            letter-spacing: 0.15em;
            color: var(--brand);
            font-weight: 600;
            text-transform: uppercase;
            margin-bottom: 0.75rem;
        }

        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 2rem;
            }
        }

        .section-desc {
            color: var(--text-sub);
            font-size: 0.95rem;
            max-width: 560px;
            margin-top: 0.5rem;
        }

        /* 功能卡片 */
        .feature-card {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--card-radius);
            padding: 2rem 1.75rem;
            box-shadow: var(--card-shadow);
            transition: border-color .2s;
            display: flex;
            flex-direction: column;
        }

        .feature-card:hover {
            border-color: var(--accent);
        }

        .feature-card .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(14,124,102,0.08);
            color: var(--brand);
            margin-bottom: 1.25rem;
        }

        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 0.5rem;
        }

        .feature-card p {
            font-size: 0.85rem;
            color: var(--text-sub);
            line-height: 1.7;
            flex-grow: 1;
        }

        .feature-card .more-link {
            margin-top: 1.25rem;
            font-size: 0.8rem;
            color: var(--brand);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
        }

        .feature-card .more-link:hover {
            gap: 0.5rem;
        }

        .feature-card-large {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--card-radius);
            padding: 2rem 2rem;
            box-shadow: var(--card-shadow);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: border-color .2s;
        }

        .feature-card-large:hover {
            border-color: var(--accent);
        }

        .feature-card-large .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(20,184,166,0.12);
            color: var(--brand);
            margin-bottom: 1.5rem;
        }

        .feature-card-large h3 {
            font-size: 1.35rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .feature-card-large p {
            font-size: 0.9rem;
            color: var(--text-sub);
            line-height: 1.75;
        }

        .feature-card-wide {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--card-radius);
            padding: 1.5rem 2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
            box-shadow: var(--card-shadow);
            transition: border-color .2s;
        }

        .feature-card-wide:hover {
            border-color: var(--accent);
        }

        /* 场景区 */
        .scenario-section {
            background: #f2f2ef;
        }

        .scenario-item {
            display: flex;
            gap: 1.25rem;
            padding: 1.5rem 0;
            border-bottom: 1px solid var(--border-soft);
        }

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

        .scenario-item .num {
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--brand);
            font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
            line-height: 1.75;
            letter-spacing: 0.05em;
            min-width: 32px;
        }

        .scenario-item h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 0.25rem;
        }

        .scenario-item p {
            font-size: 0.85rem;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* 案例卡片 */
        .case-card {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--card-radius);
            overflow: hidden;
            box-shadow: var(--card-shadow);
            transition: border-color .2s;
            scroll-snap-align: start;
            flex-shrink: 0;
            width: 280px;
        }

        @media (min-width: 768px) {
            .case-card {
                width: 320px;
            }
        }

        .case-card:hover {
            border-color: var(--accent);
        }

        .case-card .case-img {
            height: 160px;
            width: 100%;
            object-fit: cover;
            border-radius: 0;
        }

        .case-card .case-body {
            padding: 1.25rem 1.25rem 1.5rem;
        }

        .case-card .case-tag {
            display: inline-block;
            font-size: 0.7rem;
            padding: 0.2rem 0.8rem;
            border-radius: 999px;
            background: rgba(14,124,102,0.08);
            color: var(--brand);
            font-weight: 500;
        }

        .case-card h3 {
            font-size: 1rem;
            font-weight: 600;
            margin-top: 0.5rem;
            margin-bottom: 0.4rem;
        }

        .case-card p {
            font-size: 0.8rem;
            color: var(--text-sub);
            line-height: 1.65;
            margin-bottom: 0.75rem;
        }

        .case-card .more {
            font-size: 0.75rem;
            color: var(--text-sub);
        }

        .case-card:hover .more {
            color: var(--brand);
        }

        .horizontal-scroll {
            display: flex;
            overflow-x: auto;
            gap: 1.5rem;
            padding-bottom: 0.75rem;
            scroll-snap-type: x mandatory;
            scrollbar-width: thin;
            scrollbar-color: var(--border-soft) transparent;
        }

        .horizontal-scroll::-webkit-scrollbar {
            height: 6px;
        }

        .horizontal-scroll::-webkit-scrollbar-track {
            background: transparent;
        }

        .horizontal-scroll::-webkit-scrollbar-thumb {
            background: var(--border-soft);
            border-radius: 4px;
        }

        /* 价格区 */
        .price-card {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: 12px;
            padding: 2rem 1.75rem;
            box-shadow: var(--card-shadow);
            position: relative;
            transition: border-color .2s;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .price-card:hover {
            border-color: var(--accent);
        }

        .price-card .price {
            font-size: 2.5rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--text-main);
            font-feature-settings: "tnum";
            margin: 0.75rem 0;
        }

        .price-card .price span {
            font-size: 0.9rem;
            font-weight: 400;
            color: var(--text-sub);
        }

        .price-card ul {
            list-style: none;
            margin: 1.25rem 0 1.5rem;
            flex-grow: 1;
        }

        .price-card ul li {
            padding: 0.35rem 0;
            font-size: 0.85rem;
            color: var(--text-body);
            display: flex;
            align-items: flex-start;
            gap: 0.5rem;
        }

        .price-card ul li svg {
            flex-shrink: 0;
            margin-top: 0.25rem;
        }

        .price-card.recommended {
            border-color: var(--brand);
            padding-top: 3.25rem;
        }

        .price-card.recommended .recommend-banner {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            background: var(--amber);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 600;
            text-align: center;
            padding: 0.4rem 0;
            border-radius: 12px 12px 0 0;
            letter-spacing: 0.05em;
        }

        /* 新闻卡片 */
        .news-card {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--card-radius);
            padding: 1.5rem 1.5rem;
            display: grid;
            grid-template-columns: auto 1fr auto;
            gap: 1.25rem;
            align-items: center;
            box-shadow: var(--card-shadow);
            position: relative;
            transition: border-color .2s;
            margin-bottom: 0;
            border-bottom: 1px solid var(--border-soft);
        }

        .news-card:hover {
            border-color: var(--accent);
        }

        .news-card::before {
            content: '';
            position: absolute;
            left: -1px;
            top: 12%;
            bottom: 12%;
            width: 2px;
            background: var(--accent);
            border-radius: 2px;
            opacity: 0;
            transition: opacity .2s;
        }

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

        .news-card .date-block {
            background: #f9f9f6;
            border-radius: 8px;
            padding: 0.65rem 0.5rem;
            text-align: center;
            min-width: 60px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .news-card .date-block .day {
            font-size: 1.5rem;
            font-weight: 700;
            line-height: 1;
            color: var(--text-main);
            font-feature-settings: "tnum";
        }

        .news-card .date-block .month {
            font-size: 0.7rem;
            color: var(--text-sub);
            margin-top: 0.25rem;
        }

        .news-card .news-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.5;
            transition: color .2s;
        }

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

        .news-card .news-summary {
            font-size: 0.8rem;
            color: var(--text-sub);
            line-height: 1.6;
            margin-top: 0.25rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card .news-tag {
            display: inline-block;
            font-size: 0.7rem;
            padding: 0.15rem 0.7rem;
            border-radius: 999px;
            background: rgba(14,124,102,0.08);
            color: var(--brand);
            font-weight: 500;
            margin-top: 0.5rem;
        }

        .news-card .read-more {
            color: var(--text-sub);
            font-size: 0.8rem;
            white-space: nowrap;
            transition: color .2s;
        }

        .news-card:hover .read-more {
            color: var(--brand);
        }

        @media (max-width: 640px) {
            .news-card {
                grid-template-columns: auto 1fr;
                gap: 0.9rem;
                padding: 1.25rem 1rem;
            }

            .news-card .read-more {
                display: none;
            }
        }

        /* 空状态 */
        .empty-state {
            border: 1px dashed var(--border-soft);
            border-radius: 12px;
            background: #fbfbf9;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 160px;
            gap: 0.75rem;
            color: var(--text-sub);
            font-size: 0.9rem;
        }

        .empty-state .empty-icon {
            width: 56px;
            height: 56px;
            border-radius: 9999px;
            border: 2px dashed var(--border-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #b5b5ad;
        }

        /* FAQ */
        .faq-item {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--card-radius);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: border-color .2s;
        }

        .faq-item:hover {
            border-color: #ccc;
        }

        .faq-item.open {
            border-color: var(--accent);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 1.25rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-main);
            transition: color .2s;
        }

        .faq-question .icon {
            font-size: 1.25rem;
            color: var(--text-sub);
            transition: transform .3s;
            flex-shrink: 0;
            margin-left: 1rem;
        }

        .faq-item.open .faq-question {
            color: var(--brand);
            font-weight: 600;
        }

        .faq-item.open .faq-question .icon {
            transform: rotate(45deg);
            color: var(--brand);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }

        .faq-answer-inner {
            padding: 0 1.25rem 1.25rem;
            font-size: 0.85rem;
            color: var(--text-sub);
            line-height: 1.75;
        }

        /* CTA */
        .cta-section {
            background: #f0f0ed;
            padding: 4rem 0;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--text-main);
        }

        @media (min-width: 768px) {
            .cta-section h2 {
                font-size: 2.25rem;
            }
        }

        .cta-section p {
            color: var(--text-sub);
            font-size: 0.95rem;
            margin-top: 0.5rem;
            margin-bottom: 1.75rem;
        }

        /* 页脚 */
        .site-footer {
            background: #fff;
            border-top: 1px solid var(--border-soft);
            padding: 3.5rem 0 0;
        }

        .site-footer .footer-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.02em;
        }

        .site-footer .footer-desc {
            font-size: 0.85rem;
            color: var(--text-sub);
            line-height: 1.7;
            margin-top: 0.75rem;
            max-width: 320px;
        }

        .site-footer h3 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 0.85rem;
        }

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

        .site-footer ul li {
            margin-bottom: 0.4rem;
        }

        .site-footer ul a {
            font-size: 0.82rem;
            color: var(--text-sub);
        }

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

        .footer-copyright {
            margin-top: 2.5rem;
            border-top: 1px solid var(--border-soft);
            padding: 1.25rem 0;
            text-align: center;
            font-size: 0.78rem;
            color: var(--text-sub);
        }

        .footer-copyright .domain {
            color: var(--text-main);
        }

        /* 分割线细线 */
        .divider {
            height: 1px;
            background: var(--border-soft);
            border: none;
        }

        /* 数字统计 */
        .stat-block {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }

        @media (min-width: 768px) {
            .stat-block {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .stat-item {
            text-align: center;
            padding: 1.25rem 1rem;
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--card-radius);
            box-shadow: var(--card-shadow);
        }

        .stat-item .value {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-main);
            font-feature-settings: "tnum";
        }

        .stat-item .label {
            font-size: 0.78rem;
            color: var(--text-sub);
            margin-top: 0.25rem;
        }

        /* 响应式辅助类 */
        @media (max-width: 640px) {
            .hero-text h1 {
                font-size: 1.75rem;
            }

            .hero-subtitle {
                font-size: 0.95rem;
            }

            .section-title {
                font-size: 1.5rem;
            }

            .feature-card-large {
                padding: 1.5rem;
            }

            .feature-card {
                padding: 1.5rem;
            }
        }

        /* 数据区块（深色沉浸） */
        .data-section {
            background: #0B2720;
            color: #fff;
            border-radius: 16px;
            padding: 2.5rem 2rem;
            position: relative;
            overflow: hidden;
        }

        .data-section .data-title {
            font-size: 1.5rem;
            font-weight: 700;
        }

        .data-section .data-sub {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.7);
            margin-top: 0.5rem;
        }

        .data-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem 2rem;
            margin-top: 2rem;
        }

        @media (min-width: 768px) {
            .data-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .data-item .num {
            font-size: 2.2rem;
            font-weight: 700;
            color: #34D399;
            font-feature-settings: "tnum";
        }

        .data-item .desc {
            font-size: 0.78rem;
            color: rgba(255,255,255,0.6);
            margin-top: 0.25rem;
        }

/* roulang page: article */
:root {
            --color-brand: #0E7C66;
            --color-accent: #14B8A6;
            --color-amber: #F59E0B;
            --color-bg: #FAFAF8;
            --color-card: #FFFFFF;
            --color-text: #1A1A1A;
            --color-text-sub: #6E6E6E;
            --color-border: #E5E5E0;
            --radius-card: 8px;
            --shadow-card: 0 1px 4px rgba(0,0,0,0.04), 0 4px 16px rgba(0,0,0,0.04);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }

        button {
            font-family: inherit;
            cursor: pointer;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 32px;
                padding-right: 32px;
            }
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(250, 250, 248, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--color-border);
            height: 64px;
        }

        @media (min-width: 768px) {
            .site-header {
                height: 80px;
            }
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

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

        .brand-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--color-brand);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .brand-text {
            font-size: 18px;
            font-weight: 700;
            letter-spacing: .02em;
            color: var(--color-text);
            white-space: nowrap;
        }

        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: #4B5563;
            padding: 8px 2px;
            position: relative;
            transition: color .2s;
        }

        .nav-link:hover {
            color: var(--color-brand);
        }

        .nav-link.active {
            color: var(--color-text);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 2px;
            border-radius: 2px;
            background: var(--color-brand);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--color-brand);
            color: var(--color-brand);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 20px;
            border-radius: 6px;
            transition: all .2s;
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: var(--color-brand);
            color: #fff;
        }

        .mobile-menu-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 6px;
            border: 1px solid var(--color-border);
            background: #fff;
            color: var(--color-text);
        }

        @media (min-width: 768px) {
            .mobile-menu-btn {
                display: none;
            }
        }

        .mobile-menu {
            display: none;
            background: #fff;
            border-top: 1px solid var(--color-border);
            padding: 16px 24px 24px;
        }

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

        .mobile-menu a {
            display: block;
            padding: 12px 0;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            border-bottom: 1px solid var(--color-border);
        }

        .mobile-menu a:last-child {
            border-bottom: none;
        }

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

        /* ===== 面包屑 ===== */
        .breadcrumb-bar {
            padding: 40px 0 0;
        }

        .breadcrumb-bar .container {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-sub);
        }

        .breadcrumb-bar a {
            color: var(--color-brand);
        }

        .breadcrumb-bar a:hover {
            text-decoration: underline;
        }

        .breadcrumb-bar .sep {
            color: #A1A1A1;
        }

        .breadcrumb-bar .current {
            color: var(--color-text);
            font-weight: 500;
            max-width: 320px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        /* ===== 文章主体 ===== */
        .article-main {
            padding: 32px 0 64px;
        }

        .article-container {
            max-width: 720px;
            margin: 0 auto;
            background: #fff;
            border-radius: 12px;
            border: 1px solid var(--color-border);
            padding: 32px 24px;
            box-shadow: var(--shadow-card);
        }

        @media (min-width: 768px) {
            .article-container {
                padding: 48px 56px;
            }
        }

        .article-title {
            font-size: 30px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 16px;
        }

        @media (min-width: 768px) {
            .article-title {
                font-size: 38px;
                line-height: 1.2;
            }
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 14px;
            color: var(--color-text-sub);
            padding-bottom: 24px;
            margin-bottom: 32px;
            border-bottom: 1px solid var(--color-border);
        }

        .article-meta .dot {
            width: 3px;
            height: 3px;
            border-radius: 50%;
            background: #A1A1A1;
        }

        .article-meta .category-tag {
            display: inline-block;
            padding: 2px 12px;
            background: rgba(14, 124, 102, 0.1);
            color: var(--color-brand);
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
        }

        /* ===== 正文排版 ===== */
        .article-content {
            font-size: 16px;
            line-height: 1.75;
            color: #3D3D3D;
        }

        .article-content p {
            margin-bottom: 1.5em;
            line-height: 1.75;
        }

        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-text);
            margin: 40px 0 16px;
            line-height: 1.3;
        }

        .article-content h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--color-text);
            margin: 32px 0 12px;
            line-height: 1.4;
        }

        .article-content ul {
            list-style: disc;
            padding-left: 24px;
            margin-bottom: 1.5em;
        }

        .article-content ol {
            list-style: decimal;
            padding-left: 24px;
            margin-bottom: 1.5em;
        }

        .article-content li {
            margin-bottom: 8px;
            line-height: 1.7;
        }

        .article-content a {
            color: var(--color-brand);
            text-decoration: underline;
            text-underline-offset: 2px;
        }

        .article-content a:hover {
            color: var(--color-accent);
        }

        .article-content img {
            border-radius: 12px;
            border: 1px solid var(--color-border);
            margin: 24px 0;
            max-width: 100%;
            height: auto;
        }

        .article-content blockquote {
            border-left: 4px solid var(--color-brand);
            background: var(--color-bg);
            padding: 16px 20px;
            margin: 24px 0;
            border-radius: 0 8px 8px 0;
            color: var(--color-text-sub);
            font-size: 15px;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 14px;
        }

        .article-content table th {
            background: var(--color-bg);
            font-weight: 600;
            text-align: left;
            padding: 10px 12px;
            border: 1px solid var(--color-border);
        }

        .article-content table td {
            padding: 10px 12px;
            border: 1px solid var(--color-border);
        }

        /* ===== 文章分页 ===== */
        .article-pagination {
            max-width: 720px;
            margin: 32px auto 0;
            display: flex;
            justify-content: space-between;
            gap: 16px;
        }

        .article-pagination a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-sub);
            padding: 10px 16px;
            border: 1px solid var(--color-border);
            border-radius: 8px;
            background: #fff;
            transition: all .2s;
        }

        .article-pagination a:hover {
            color: var(--color-brand);
            border-color: var(--color-brand);
        }

        /* ===== 相关内容 ===== */
        .related-section {
            padding: 64px 0 40px;
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 32px;
        }

        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.3;
        }

        .section-head .sub-text {
            font-size: 14px;
            color: var(--color-text-sub);
            margin-top: 6px;
        }

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

        @media (min-width: 640px) {
            .related-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .related-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: 12px;
            overflow: hidden;
            transition: border-color .2s;
            display: block;
            height: 100%;
        }

        .related-card:hover {
            border-color: var(--color-accent);
        }

        .related-card-thumb {
            aspect-ratio: 16/9;
            background: var(--color-bg);
            overflow: hidden;
        }

        .related-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .3s;
        }

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

        .related-card-body {
            padding: 20px;
        }

        .related-card-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.45;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card-body p {
            font-size: 13px;
            color: var(--color-text-sub);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card-tag {
            display: inline-block;
            padding: 2px 10px;
            background: rgba(14, 124, 102, 0.08);
            color: var(--color-brand);
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
            margin-bottom: 10px;
        }

        /* ===== CTA ===== */
        .article-cta {
            background: var(--color-bg);
            border-top: 1px solid var(--color-border);
            padding: 48px 0;
            text-align: center;
        }

        .article-cta h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
        }

        .article-cta p {
            font-size: 14px;
            color: var(--color-text-sub);
            margin-bottom: 24px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--color-accent);
            color: #fff;
            font-size: 14px;
            font-weight: 500;
            padding: 12px 28px;
            border-radius: 6px;
            transition: background .2s;
        }

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

        /* ===== 页脚 ===== */
        .site-footer {
            background: #fff;
            border-top: 1px solid var(--color-border);
            padding: 64px 0 32px;
        }

        .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: .02em;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--color-text-sub);
            line-height: 1.7;
            margin-top: 16px;
            max-width: 360px;
        }

        .site-footer h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 16px;
        }

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

        .site-footer ul a {
            font-size: 14px;
            color: var(--color-text-sub);
        }

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

        .footer-copyright {
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid var(--color-border);
            text-align: center;
            font-size: 13px;
            color: var(--color-text-sub);
        }

        .footer-copyright .domain {
            color: #A1A1A1;
        }

        /* ===== 内容未找到 ===== */
        .not-found-wrap {
            text-align: center;
            padding: 80px 24px;
        }

        .not-found-icon {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            border: 2px dashed var(--color-border);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 24px;
            font-size: 28px;
            color: var(--color-text-sub);
        }

        .not-found-wrap h1 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .not-found-wrap p {
            font-size: 15px;
            color: var(--color-text-sub);
            margin-bottom: 28px;
            max-width: 400px;
            margin-left: auto;
            margin-right: auto;
        }

        .back-home-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-brand);
            color: #fff;
            font-size: 14px;
            font-weight: 500;
            padding: 12px 28px;
            border-radius: 6px;
            transition: background .2s;
        }

        .back-home-btn:hover {
            background: var(--color-accent);
        }

/* roulang page: category1 */
:root {
            --color-brand: #0E7C66;
            --color-accent: #14B8A6;
            --color-amber: #F59E0B;
            --color-bg: #FAFAF8;
            --color-card: #FFFFFF;
            --color-text-main: #1A1A1A;
            --color-text-body: #3D3D3D;
            --color-text-sub: #6E6E6E;
            --color-border: #E5E5E0;
            --radius-card: 8px;
            --radius-btn: 6px;
            --shadow-card: 0 1px 4px rgba(0, 0, 0, 0.04), 0 4px 16px rgba(0, 0, 0, 0.04);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text-body);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        h1, h2, h3, h4, h5, h6 {
            color: var(--color-text-main);
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 .5rem;
        }

        p {
            margin: 0 0 1rem;
        }

        .container {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--color-accent);
            color: #fff;
            font-size: .875rem;
            font-weight: 500;
            border-radius: var(--radius-btn);
            padding: .75rem 1.5rem;
            transition: background-color .2s ease;
            box-shadow: none;
        }
        .btn-primary:hover {
            background-color: var(--color-brand);
        }
        .btn-primary:focus-visible,
        .btn-outline:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--color-brand);
            color: var(--color-brand);
            font-size: .875rem;
            font-weight: 500;
            border-radius: var(--radius-btn);
            padding: .75rem 1.5rem;
            background: transparent;
            transition: all .2s ease;
        }
        .btn-outline:hover {
            background-color: var(--color-brand);
            color: #fff;
        }

        /* ===== Nav ===== */
        .site-nav {
            background: rgba(250, 250, 248, 0.95);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 50;
            backdrop-filter: blur(8px);
        }

        .nav-link {
            position: relative;
            color: #4B5563;
            font-size: .875rem;
            font-weight: 500;
            padding: .25rem 0;
            transition: color .2s ease;
        }
        .nav-link:hover {
            color: var(--color-brand);
        }
        .nav-link.active {
            color: var(--color-brand);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -4px;
            height: 2px;
            background: var(--color-brand);
            border-radius: 2px;
        }

        .mobile-menu {
            display: none;
            border-top: 1px solid var(--color-border);
            background: #fff;
        }
        .mobile-menu.open {
            display: block;
        }

        /* ===== Category Hero ===== */
        .category-hero {
            position: relative;
            min-height: 280px;
            display: flex;
            align-items: center;
            padding: 4rem 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
        }
        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(255, 255, 255, 0.78);
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb {
            font-size: .875rem;
            color: var(--color-text-sub);
        }
        .breadcrumb a {
            color: var(--color-brand);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }

        /* ===== Stat Card ===== */
        .stat-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 1.5rem 1.25rem;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: border-color .2s ease;
        }
        .stat-card:hover {
            border-color: var(--color-accent);
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-brand);
            font-feature-settings: "tnum";
            line-height: 1.2;
        }
        .stat-label {
            font-size: .875rem;
            color: var(--color-text-sub);
            margin-top: .375rem;
        }

        /* ===== Guide Card ===== */
        .guide-card {
            display: flex;
            flex-direction: column;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: border-color .2s ease, background-color .2s ease;
        }
        .guide-card:hover {
            border-color: var(--color-accent);
            background-color: #F9FBFA;
        }
        .guide-card-image {
            flex: 0 0 100%;
            min-height: 200px;
            background: #F4F4F2;
            overflow: hidden;
        }
        .guide-card-image img {
            width: 100%;
            height: 100%;
            min-height: 200px;
            object-fit: cover;
        }
        .guide-card-content {
            padding: 1.75rem 1.5rem;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }
        .guide-card-content h3 {
            font-size: 1.125rem;
            font-weight: 600;
            margin: .5rem 0 .5rem;
        }
        .guide-card-content p {
            font-size: .875rem;
            color: var(--color-text-sub);
            line-height: 1.7;
            margin-bottom: 1rem;
        }
        .guide-divider {
            width: 100%;
            height: 1px;
            background: var(--color-border);
            margin-top: auto;
            margin-bottom: .875rem;
        }
        .text-link {
            font-size: .875rem;
            font-weight: 500;
            color: var(--color-brand);
            display: inline-flex;
            align-items: center;
            gap: .25rem;
            transition: gap .2s ease;
        }
        .text-link:hover {
            gap: .5rem;
            color: var(--color-brand);
        }

        .badge {
            display: inline-block;
            font-size: .75rem;
            font-weight: 500;
            color: var(--color-brand);
            background: rgba(14, 124, 102, 0.08);
            border-radius: 999px;
            padding: .25rem .75rem;
        }

        @media (min-width: 768px) {
            .guide-card {
                flex-direction: row;
                align-items: stretch;
            }
            .guide-card-image {
                flex: 0 0 42%;
                min-height: 240px;
            }
            .guide-card-image img {
                min-height: 240px;
            }
            .guide-card-content {
                flex: 1;
                padding: 2rem 2.25rem;
            }
            .guide-card:nth-child(even) {
                flex-direction: row-reverse;
            }
        }

        /* ===== CTA Banner ===== */
        .cta-banner {
            background: #F3F8F6;
            border: 1px solid rgba(14, 124, 102, 0.18);
            border-radius: var(--radius-card);
            padding: 2rem 2.25rem;
            box-shadow: none;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: border-color .2s ease;
        }
        .faq-item.open {
            border-color: rgba(14, 124, 102, 0.35);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1rem 1.25rem;
            font-size: .9375rem;
            font-weight: 500;
            color: var(--color-text-main);
            text-align: left;
            transition: color .2s ease;
        }
        .faq-item.open .faq-question {
            color: var(--color-brand);
            font-weight: 600;
        }
        .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(14, 124, 102, 0.08);
            color: var(--color-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 400;
            flex-shrink: 0;
            transition: transform .25s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--color-brand);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease, padding .3s ease;
            font-size: .875rem;
            color: var(--color-text-sub);
            line-height: 1.7;
            padding: 0 1.25rem;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 1.25rem 1.25rem;
        }

        /* ===== Pre-footer CTA ===== */
        .pre-footer-cta {
            background: rgba(14, 124, 102, 0.04);
            padding: 4rem 0;
            border-top: 1px solid var(--color-border);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #fff;
            border-top: 1px solid var(--color-border);
            padding: 3.5rem 0 2rem;
        }
        .footer-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-text-main);
            letter-spacing: .02em;
        }
        .footer-desc {
            font-size: .875rem;
            color: var(--color-text-sub);
            max-width: 320px;
            margin-top: .75rem;
            line-height: 1.7;
        }
        .site-footer h3 {
            font-size: .875rem;
            font-weight: 600;
            color: var(--color-text-main);
            margin-bottom: 1rem;
        }
        .site-footer ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .site-footer ul li {
            margin-bottom: .625rem;
        }
        .site-footer ul a {
            font-size: .875rem;
            color: var(--color-text-sub);
        }
        .site-footer ul a:hover {
            color: var(--color-brand);
        }
        .footer-copyright {
            border-top: 1px solid var(--color-border);
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            font-size: .8125rem;
            color: var(--color-text-sub);
            text-align: center;
        }
        .footer-copyright .domain {
            color: var(--color-text-sub);
        }

        @media (max-width: 767px) {
            .category-hero {
                min-height: 240px;
                padding: 3rem 0;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .guide-card-content {
                padding: 1.25rem;
            }
            .cta-banner {
                padding: 1.5rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-brand: #0E7C66;
            --color-accent: #14B8A6;
            --color-amber: #F59E0B;
            --color-space: #FAFAF8;
            --color-card: #FFFFFF;
            --color-text: #1A1A1A;
            --color-body: #3D3D3D;
            --color-sub: #6E6E6E;
            --color-disable: #A1A1A1;
            --color-border: #E5E5E0;
            --radius-card: 12px;
            --radius-btn: 6px;
            --shadow-card: 0 1px 4px rgba(0, 0, 0, 0.04), 0 4px 16px rgba(0, 0, 0, 0.04);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background-color: var(--color-space);
            color: var(--color-body);
            line-height: 1.75;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        .container {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* ===== 导航 ===== */
        .site-nav {
            position: sticky;
            top: 0;
            z-index: 50;
            background-color: rgba(250, 250, 248, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--color-border);
        }

        .site-nav .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        @media (min-width: 768px) {
            .site-nav .nav-inner {
                height: 80px;
            }
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            color: var(--color-text);
        }

        .site-logo .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 10px;
            background: var(--color-brand);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-link {
            font-size: 0.875rem;
            font-weight: 500;
            color: #4B5563;
            padding: 0.35rem 0;
            position: relative;
            transition: color 0.25s ease;
        }

        .nav-link:hover {
            color: var(--color-brand);
        }

        .nav-link.active {
            color: var(--color-text);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -4px;
            height: 2px;
            border-radius: 2px;
            background: var(--color-brand);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--color-brand);
            color: var(--color-brand);
            font-size: 0.875rem;
            font-weight: 500;
            border-radius: var(--radius-btn);
            padding: 0.5rem 1.25rem;
            transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
        }

        .nav-cta:hover {
            background: var(--color-brand);
            color: #fff;
            border-color: var(--color-brand);
        }

        .mobile-menu-btn {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--color-border);
            background: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text);
        }

        .mobile-panel {
            display: none;
            background: #fff;
            border-top: 1px solid var(--color-border);
            padding: 0.75rem 1.5rem 1.25rem;
        }

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

        .mobile-panel a {
            display: block;
            padding: 0.65rem 0;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-body);
            border-bottom: 1px solid #F4F4F2;
        }

        .mobile-panel a:last-child {
            border-bottom: none;
        }

        .mobile-panel a.active {
            color: var(--color-brand);
            font-weight: 600;
        }

        /* ===== 通用按钮 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: var(--color-accent);
            color: #fff;
            font-size: 0.875rem;
            font-weight: 500;
            border-radius: var(--radius-btn);
            padding: 0.75rem 1.75rem;
            transition: background 0.25s ease, transform 0.2s ease;
        }

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

        .btn-primary:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.4);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            border: 1px solid var(--color-brand);
            color: var(--color-brand);
            background: transparent;
            font-size: 0.875rem;
            font-weight: 500;
            border-radius: var(--radius-btn);
            padding: 0.75rem 1.75rem;
            transition: background 0.25s ease, color 0.25s ease;
        }

        .btn-outline:hover {
            background: var(--color-brand);
            color: #fff;
        }

        .btn-outline:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(14, 124, 102, 0.3);
        }

        /* ===== 分类页 Hero ===== */
        .category-hero {
            position: relative;
            min-height: 280px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, rgba(14, 124, 102, 0.06), rgba(20, 184, 166, 0.04)), #FAFAF8;
            border-bottom: 1px solid var(--color-border);
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 0;
        }

        .category-hero .hero-content {
            position: relative;
            z-index: 1;
            padding: 2.5rem 0;
        }

        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.8125rem;
            color: var(--color-sub);
            margin-bottom: 1rem;
        }

        .hero-breadcrumb a {
            color: var(--color-brand);
        }

        .hero-breadcrumb span {
            color: var(--color-disable);
        }

        .category-hero h1 {
            font-size: 1.875rem;
            font-weight: 700;
            line-height: 1.2;
            color: var(--color-text);
            margin: 0 0 0.75rem;
        }

        .category-hero .hero-sub {
            font-size: 0.9375rem;
            color: var(--color-sub);
            max-width: 640px;
            margin: 0;
        }

        @media (min-width: 768px) {
            .category-hero h1 {
                font-size: 2.5rem;
            }

            .category-hero .hero-sub {
                font-size: 1rem;
            }
        }

        /* ===== 数据指标条 ===== */
        .data-strip {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
        }

        .data-strip .strip-inner {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
            padding: 1.5rem 0;
        }

        .data-strip .strip-item {
            text-align: center;
            padding: 1rem 0.5rem;
            border-radius: var(--radius-card);
            background: var(--color-space);
            border: 1px solid #F0F0EC;
        }

        .data-strip .strip-num {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-brand);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }

        .data-strip .strip-label {
            font-size: 0.8125rem;
            color: var(--color-sub);
            margin-top: 0.25rem;
        }

        @media (min-width: 768px) {
            .data-strip .strip-inner {
                grid-template-columns: repeat(4, 1fr);
                gap: 1.5rem;
                padding: 2rem 0;
            }

            .data-strip .strip-num {
                font-size: 2.25rem;
            }
        }

        /* ===== 内容图文区块 ===== */
        .section-block {
            padding: 3.5rem 0;
        }

        @media (min-width: 768px) {
            .section-block {
                padding: 5rem 0;
            }
        }

        .section-head {
            margin-bottom: 2.5rem;
        }

        .section-head .section-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--color-brand);
            background: rgba(14, 124, 102, 0.08);
            border-radius: 999px;
            padding: 0.25rem 0.85rem;
            margin-bottom: 0.75rem;
            text-transform: uppercase;
        }

        .section-head h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.3;
            margin: 0;
        }

        .section-head p {
            font-size: 0.875rem;
            color: var(--color-sub);
            margin-top: 0.5rem;
            max-width: 560px;
        }

        @media (min-width: 768px) {
            .section-head h2 {
                font-size: 1.875rem;
            }
        }

        .feature-card {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: 16px;
            overflow: hidden;
            padding: 1.25rem;
            margin-bottom: 1.75rem;
            transition: border-color 0.3s ease;
        }

        .feature-card:hover {
            border-color: var(--color-accent);
        }

        .feature-card .feature-img {
            border-radius: 12px;
            overflow: hidden;
            min-height: 200px;
            background: #F4F4F2;
        }

        .feature-card .feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 200px;
        }

        .feature-card .feature-body {
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 0.5rem 0.25rem;
        }

        .feature-card .feature-num {
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--color-accent);
            letter-spacing: 0.05em;
            margin-bottom: 0.35rem;
        }

        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--color-text);
            margin: 0 0 0.5rem;
        }

        .feature-card p {
            font-size: 0.875rem;
            color: var(--color-sub);
            line-height: 1.7;
            margin: 0;
        }

        .feature-card .feature-points {
            list-style: none;
            padding: 0;
            margin: 0.85rem 0 0;
            display: grid;
            gap: 0.4rem;
        }

        .feature-card .feature-points li {
            display: flex;
            align-items: flex-start;
            gap: 0.5rem;
            font-size: 0.8125rem;
            color: var(--color-body);
        }

        .feature-card .feature-points li svg {
            flex-shrink: 0;
            margin-top: 0.15rem;
        }

        @media (min-width: 768px) {
            .feature-card {
                grid-template-columns: 1fr 1fr;
                padding: 1.5rem;
            }

            .feature-card.reverse .feature-img {
                order: 2;
            }

            .feature-card.reverse .feature-body {
                order: 1;
            }
        }

        /* ===== 细长横幅 CTA ===== */
        .cta-banner {
            margin: 1.5rem 0 3.5rem;
            background: #F4F4F2;
            border: 1px solid var(--color-border);
            border-radius: 14px;
            padding: 1.5rem 1.75rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
        }

        .cta-banner .cta-title {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--color-text);
            margin: 0;
        }

        .cta-banner .cta-desc {
            font-size: 0.8125rem;
            color: var(--color-sub);
            margin: 0.25rem 0 0;
        }

        .cta-banner .cta-link {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-brand);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            transition: color 0.25s ease;
        }

        .cta-banner .cta-link:hover {
            color: var(--color-accent);
        }

        .cta-banner .cta-link:hover svg {
            transform: translateX(3px);
        }

        .cta-banner .cta-link svg {
            transition: transform 0.25s ease;
        }

        /* ===== 适用场景 ===== */
        .scenario-section {
            background: #fff;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            align-items: center;
        }

        .scenario-list {
            display: grid;
            gap: 1.5rem;
        }

        .scenario-item {
            display: flex;
            gap: 1rem;
            padding: 1.25rem;
            border-radius: 12px;
            background: var(--color-space);
            border: 1px solid #F0F0EC;
            transition: border-color 0.25s ease;
        }

        .scenario-item:hover {
            border-color: var(--color-accent);
        }

        .scenario-item .scenario-index {
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--color-accent);
            font-variant-numeric: tabular-nums;
            line-height: 1.6;
            min-width: 2rem;
        }

        .scenario-item h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            margin: 0 0 0.3rem;
        }

        .scenario-item p {
            font-size: 0.8125rem;
            color: var(--color-sub);
            line-height: 1.65;
            margin: 0;
        }

        .scenario-img {
            border-radius: 16px;
            overflow: hidden;
            min-height: 280px;
            background: #F4F4F2;
        }

        .scenario-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 280px;
        }

        @media (min-width: 768px) {
            .scenario-grid {
                grid-template-columns: 1.1fr 0.9fr;
                gap: 3.5rem;
            }
        }

        /* ===== 服务流程 ===== */
        .process-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.25rem;
            margin-top: 2rem;
        }

        .process-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: 14px;
            padding: 1.5rem;
            position: relative;
            transition: border-color 0.25s ease;
        }

        .process-card:hover {
            border-color: var(--color-accent);
        }

        .process-card .step-num {
            font-size: 0.875rem;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 0.05em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .process-card .step-num::after {
            content: '';
            flex: 1;
            height: 1px;
            background: var(--color-border);
        }

        .process-card h3 {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--color-text);
            margin: 0.75rem 0 0.4rem;
        }

        .process-card p {
            font-size: 0.8125rem;
            color: var(--color-sub);
            line-height: 1.65;
            margin: 0;
        }

        @media (min-width: 768px) {
            .process-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #fff;
            border-top: 1px solid var(--color-border);
        }

        .faq-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
        }

        .faq-left {
            max-width: 360px;
        }

        .faq-left h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.3;
            margin: 0 0 0.75rem;
        }

        .faq-left p {
            font-size: 0.875rem;
            color: var(--color-sub);
            margin: 0 0 1.5rem;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: 12px;
            margin-bottom: 0.75rem;
            overflow: hidden;
        }

        .faq-item.open {
            border-color: var(--color-accent);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1rem 1.25rem;
            background: transparent;
            border: none;
            text-align: left;
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--color-text);
            transition: color 0.25s ease;
        }

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

        .faq-item.open .faq-question {
            color: var(--color-brand);
            font-weight: 600;
        }

        .faq-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-sub);
            transition: transform 0.3s ease;
        }

        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: var(--color-brand);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-answer-inner {
            padding: 0 1.25rem 1.1rem;
            font-size: 0.8125rem;
            color: var(--color-sub);
            line-height: 1.7;
        }

        @media (min-width: 768px) {
            .faq-layout {
                grid-template-columns: 0.8fr 1.2fr;
                gap: 3.5rem;
            }

            .faq-left {
                max-width: 340px;
            }
        }

        /* ===== 最终 CTA ===== */
        .final-cta {
            padding: 4rem 0;
            background: #F4F4F2;
            border-top: 1px solid var(--color-border);
            text-align: center;
        }

        .final-cta h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 0.5rem;
        }

        .final-cta p {
            font-size: 0.875rem;
            color: var(--color-sub);
            max-width: 520px;
            margin: 0 auto 1.75rem;
        }

        .final-cta .btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.85rem;
        }

        @media (min-width: 768px) {
            .final-cta {
                padding: 5rem 0;
            }

            .final-cta h2 {
                font-size: 1.875rem;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #fff;
            border-top: 1px solid var(--color-border);
            padding: 3.5rem 0 0;
        }

        .site-footer h3 {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--color-text);
            margin: 0 0 1rem;
        }

        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            gap: 0.5rem;
        }

        .site-footer ul a {
            font-size: 0.875rem;
            color: var(--color-sub);
            transition: color 0.25s ease;
        }

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

        .footer-brand {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--color-text);
        }

        .footer-desc {
            font-size: 0.875rem;
            color: var(--color-sub);
            line-height: 1.7;
            margin: 1rem 0 0;
            max-width: 360px;
        }

        .footer-copyright {
            margin-top: 2.5rem;
            border-top: 1px solid var(--color-border);
            padding: 1.5rem 0;
            font-size: 0.8125rem;
            color: var(--color-disable);
            text-align: center;
        }

        .footer-copyright .domain {
            color: var(--color-sub);
        }

/* roulang page: category3 */
:root {
            --color-brand: #0E7C66;
            --color-accent: #14B8A6;
            --color-space: #FAFAF8;
            --text-main: #1A1A1A;
            --text-sub: #6E6E6E;
            --border-soft: #E5E5E0;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background: #FAFAF8;
            color: #3D3D3D;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: #0E7C66;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #0a5f4e;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(250, 250, 248, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid #E5E5E0;
        }
        .nav-link {
            position: relative;
            font-size: 14px;
            color: #4B5563;
            font-weight: 500;
            padding-bottom: 4px;
            transition: color 0.2s ease;
        }
        .nav-link:hover {
            color: #0E7C66;
        }
        .nav-link.active {
            color: #0E7C66;
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: #0E7C66;
            border-radius: 2px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #14B8A6;
            color: #fff;
            font-size: 14px;
            font-weight: 500;
            border-radius: 6px;
            padding: 12px 24px;
            transition: background-color 0.2s ease, transform 0.2s ease;
            transform: translateY(0);
        }
        .btn-primary:hover {
            background: #0E7C66;
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-primary:focus-visible {
            outline: none;
            box-shadow: 0 0 0 2px #FAFAF8, 0 0 0 4px #14B8A6;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 1px solid #0E7C66;
            color: #0E7C66;
            font-size: 14px;
            font-weight: 500;
            border-radius: 6px;
            padding: 12px 24px;
            background: transparent;
            transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
            transform: translateY(0);
        }
        .btn-outline:hover {
            background: #0E7C66;
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-outline:focus-visible {
            outline: none;
            box-shadow: 0 0 0 2px #FAFAF8, 0 0 0 4px #0E7C66;
        }
        .section-padding {
            padding: 64px 0;
        }
        @media (min-width: 768px) {
            .section-padding {
                padding: 96px 0;
            }
        }
        .card {
            background: #fff;
            border: 1px solid #E5E5E0;
            border-radius: 8px;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04), 0 4px 16px rgba(0, 0, 0, 0.04);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .card:hover {
            border-color: #14B8A6;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04), 0 4px 16px rgba(0, 0, 0, 0.04);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 999px;
            background: rgba(14, 124, 102, 0.1);
            color: #0E7C66;
            font-weight: 500;
        }
        .faq-item {
            background: #fff;
            border: 1px solid #E5E5E0;
            border-radius: 8px;
            overflow: hidden;
            transition: border-color 0.2s ease;
        }
        .faq-item.open {
            border-color: #14B8A6;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 500;
            color: #1A1A1A;
            transition: color 0.2s ease;
        }
        .faq-item.open .faq-question {
            color: #0E7C66;
            font-weight: 600;
        }
        .faq-arrow {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform 0.3s ease;
            color: #6E6E6E;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: #0E7C66;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .faq-answer-inner {
            padding: 0 24px 18px;
            font-size: 14px;
            color: #6E6E6E;
            line-height: 1.75;
            border-top: 1px solid #F4F4F2;
            padding-top: 14px;
            margin-top: 0;
        }
        .footer-brand {
            font-size: 18px;
            font-weight: 700;
            color: #1A1A1A;
            letter-spacing: 0.02em;
        }
        .site-footer {
            background: #FFFFFF;
            border-top: 1px solid #E5E5E0;
            padding: 64px 0 32px;
        }
        .site-footer h3 {
            font-size: 15px;
            font-weight: 600;
            color: #1A1A1A;
            margin-bottom: 16px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
        }
        .site-footer ul li {
            margin-bottom: 12px;
        }
        .site-footer ul a {
            font-size: 14px;
            color: #6E6E6E;
            transition: color 0.2s ease;
        }
        .site-footer ul a:hover {
            color: #0E7C66;
        }
        .footer-desc {
            font-size: 14px;
            color: #6E6E6E;
            line-height: 1.7;
            margin-top: 16px;
            max-width: 360px;
        }
        .footer-copyright {
            border-top: 1px solid #F4F4F2;
            margin-top: 48px;
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: #A1A1A1;
        }
        .footer-copyright .domain {
            color: #6E6E6E;
        }
        .page-hero {
            position: relative;
            background-color: #FAFAF8;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid #E5E5E0;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(255, 255, 255, 0.72);
        }
        .num-item {
            font-feature-settings: "tnum";
            font-variant-numeric: tabular-nums;
        }
        .scenario-card {
            background: #fff;
            border: 1px solid #E5E5E0;
            border-radius: 12px;
            overflow: hidden;
            transition: border-color 0.2s ease, background-color 0.2s ease;
        }
        .scenario-card:hover {
            border-color: #14B8A6;
            background: #FDFDFC;
        }
        .step-circle {
            width: 44px;
            height: 44px;
            border-radius: 999px;
            background: rgba(14, 124, 102, 0.1);
            color: #0E7C66;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
            font-feature-settings: "tnum";
        }
        .dark-stats {
            background: linear-gradient(135deg, #0E7C66 0%, #0a5f4e 100%);
            border-radius: 16px;
            color: #fff;
            padding: 56px 48px;
            position: relative;
            overflow: hidden;
        }
        .dark-stats::after {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 160px;
            height: 160px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .dark-stats .stat-num {
            font-size: 42px;
            font-weight: 700;
            line-height: 1.1;
            font-feature-settings: "tnum";
        }
        @media (max-width: 768px) {
            .dark-stats {
                padding: 40px 24px;
                border-radius: 12px;
            }
            .dark-stats .stat-num {
                font-size: 32px;
            }
        }
        .arrow-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: #0E7C66;
            transition: gap 0.2s ease;
        }
        .arrow-link:hover {
            gap: 10px;
            color: #0a5f4e;
        }