/* roulang page: index */
:root {
            --cs-primary: #1e3a36;
            --cs-primary-dark: #16302c;
            --cs-primary-light: #2a4f49;
            --cs-accent: #b3824e;
            --cs-accent-hover: #99703e;
            --cs-bg: #f6f3ef;
            --cs-bg-alt: #efece6;
            --cs-bg-soft: #faf9f6;
            --cs-text: #1e2b29;
            --cs-text-muted: #677571;
            --cs-border: #e2ddd4;
            --cs-flag: #e9e4db;
            --cs-radius: 16px;
            --cs-radius-sm: 10px;
            --cs-radius-lg: 22px;
            --cs-shadow: 0 4px 18px rgba(30, 42, 40, 0.06);
            --cs-shadow-hover: 0 14px 32px rgba(30, 42, 40, 0.12);
            --cs-transition: all 0.28s cubic-bezier(0.22, 0.61, 0.36, 1);
            --cs-font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Helvetica Neue', Arial, sans-serif;
        }

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

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

        body {
            font-family: var(--cs-font);
            background-color: var(--cs-bg);
            color: var(--cs-text);
            line-height: 1.85;
            font-size: 16px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--cs-accent);
            text-decoration: none;
            transition: var(--cs-transition);
        }

        a:hover {
            color: var(--cs-accent-hover);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--cs-accent);
            outline-offset: 3px;
        }

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

        .container-cs {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .section {
            padding: 88px 0;
            position: relative;
        }

        .section.bg-white {
            background-color: #ffffff;
        }

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

        .section.bg-soft {
            background-color: var(--cs-bg-soft);
        }

        .section.bg-dark {
            background-color: var(--cs-primary);
            color: #f0f2ef;
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--cs-accent);
            text-transform: uppercase;
            margin-bottom: 14px;
            border-left: 4px solid var(--cs-accent);
            padding-left: 12px;
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--cs-text);
            margin-bottom: 18px;
            letter-spacing: 0.01em;
        }

        .bg-dark .section-title {
            color: #ffffff;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--cs-text-muted);
            max-width: 720px;
            line-height: 1.95;
            margin-bottom: 0;
        }

        .bg-dark .section-desc {
            color: rgba(240, 242, 239, 0.8);
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.6rem;
                margin-bottom: 12px;
            }
            .section-desc {
                font-size: 0.95rem;
                line-height: 1.8;
            }
        }

        @media (max-width: 576px) {
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-desc {
                font-size: 0.88rem;
            }
        }

        /* ============ 导航 ============ */
        .cs-navbar {
            background-color: rgba(30, 58, 54, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 12px 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: box-shadow 0.3s ease, padding 0.3s ease;
            min-height: 72px;
            display: flex;
            align-items: center;
        }

        .cs-navbar .navbar-brand {
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .cs-navbar .navbar-brand .brand-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--cs-accent);
            color: #fff;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 700;
            letter-spacing: 0;
            flex-shrink: 0;
        }

        .cs-navbar .nav-link {
            color: rgba(255, 255, 255, 0.82);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: var(--cs-transition);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .cs-navbar .nav-link:hover,
        .cs-navbar .nav-link:focus {
            color: #ffffff;
            background-color: rgba(255, 255, 255, 0.08);
        }

        .cs-navbar .nav-link.active {
            color: #ffffff;
            background-color: var(--cs-accent);
            font-weight: 600;
        }

        .cs-navbar .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            padding: 8px 12px;
            border-radius: 8px;
        }

        .cs-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(179, 130, 78, 0.4);
            outline: none;
        }

        .cs-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        @media (max-width: 991.98px) {
            .cs-navbar .navbar-collapse {
                background-color: var(--cs-primary-dark);
                padding: 16px;
                border-radius: 14px;
                margin-top: 12px;
                border: 1px solid rgba(255, 255, 255, 0.08);
            }
            .cs-navbar .nav-link {
                padding: 12px 16px !important;
                font-size: 0.98rem;
            }
            .cs-navbar .navbar-nav {
                gap: 4px;
            }
        }

        /* ============ Hero ============ */
        .hero-cs {
            background-color: var(--cs-primary);
            color: #fff;
            padding: 72px 0 88px;
            position: relative;
            overflow: hidden;
        }

        .hero-cs::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(179, 130, 78, 0.18) 0%, transparent 68%);
            pointer-events: none;
        }

        .hero-cs::after {
            content: '';
            position: absolute;
            bottom: -160px;
            left: -100px;
            width: 380px;
            height: 380px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(179, 130, 78, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-cs .hero-content {
            position: relative;
            z-index: 2;
        }

        .hero-cs h1 {
            font-size: 2.7rem;
            font-weight: 700;
            line-height: 1.28;
            margin-bottom: 20px;
            color: #ffffff;
            letter-spacing: 0.01em;
        }

        .hero-cs .hero-desc {
            font-size: 1.08rem;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.82);
            max-width: 580px;
            margin-bottom: 32px;
        }

        .hero-cs .hero-kpi {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            margin-bottom: 36px;
        }

        .hero-cs .hero-kpi .kpi-item {
            display: flex;
            flex-direction: column;
        }

        .hero-cs .hero-kpi .kpi-number {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--cs-accent);
            line-height: 1.2;
        }

        .hero-cs .hero-kpi .kpi-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.68);
            letter-spacing: 0.04em;
        }

        .hero-cs .hero-image-wrap {
            position: relative;
            z-index: 2;
            transform: translateY(18px);
            border-radius: var(--cs-radius-lg);
            overflow: hidden;
            box-shadow: 0 24px 48px rgba(0, 0, 0, 0.28);
            border: 4px solid rgba(255, 255, 255, 0.1);
        }

        .hero-cs .hero-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 5 / 6;
            display: block;
        }

        .btn-cs {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: 999px;
            border: none;
            background-color: var(--cs-accent);
            color: #fff;
            transition: var(--cs-transition);
            text-decoration: none;
            cursor: pointer;
            letter-spacing: 0.02em;
            min-height: 48px;
            box-shadow: 0 6px 16px rgba(179, 130, 78, 0.3);
        }

        .btn-cs:hover,
        .btn-cs:focus {
            background-color: var(--cs-accent-hover);
            color: #fff;
            box-shadow: 0 10px 24px rgba(179, 130, 78, 0.42);
            transform: translateY(-2px);
        }

        .btn-cs-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: 999px;
            border: 2px solid rgba(255, 255, 255, 0.4);
            background-color: transparent;
            color: #fff;
            transition: var(--cs-transition);
            text-decoration: none;
            cursor: pointer;
            letter-spacing: 0.02em;
            min-height: 48px;
        }

        .btn-cs-outline:hover,
        .btn-cs-outline:focus {
            border-color: #fff;
            background-color: rgba(255, 255, 255, 0.08);
            color: #fff;
            transform: translateY(-2px);
        }

        @media (max-width: 991.98px) {
            .hero-cs h1 {
                font-size: 2.1rem;
            }
            .hero-cs .hero-image-wrap {
                transform: translateY(0);
                margin-top: 32px;
                aspect-ratio: 16 / 10;
            }
            .hero-cs .hero-image-wrap img {
                aspect-ratio: 16 / 10;
            }
        }

        @media (max-width: 576px) {
            .hero-cs {
                padding: 48px 0 60px;
            }
            .hero-cs h1 {
                font-size: 1.6rem;
            }
            .hero-cs .hero-desc {
                font-size: 0.95rem;
                line-height: 1.75;
            }
            .hero-cs .hero-kpi {
                gap: 20px;
            }
            .hero-cs .hero-kpi .kpi-number {
                font-size: 1.35rem;
            }
            .btn-cs,
            .btn-cs-outline {
                width: 100%;
                min-height: 48px;
            }
        }

        /* ============ 指标看板 ============ */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: #fff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius);
            padding: 28px 24px;
            box-shadow: var(--cs-shadow);
            transition: var(--cs-transition);
            text-align: left;
        }

        .metric-card:hover {
            box-shadow: var(--cs-shadow-hover);
            border-color: var(--cs-accent);
            transform: translateY(-4px);
        }

        .metric-card .metric-icon {
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(179, 130, 78, 0.12);
            color: var(--cs-accent);
            font-size: 1.3rem;
            border-radius: 12px;
            margin-bottom: 16px;
        }

        .metric-card .metric-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--cs-primary);
            line-height: 1.2;
        }

        .metric-card .metric-label {
            font-size: 0.9rem;
            color: var(--cs-text-muted);
            margin-top: 4px;
        }

        @media (max-width: 991.98px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 576px) {
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .metric-card {
                padding: 20px 18px;
            }
            .metric-card .metric-number {
                font-size: 1.5rem;
            }
        }

        /* ============ 卡片通用 ============ */
        .card-custom {
            background: #fff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius);
            padding: 28px;
            box-shadow: var(--cs-shadow);
            transition: var(--cs-transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .card-custom:hover {
            box-shadow: var(--cs-shadow-hover);
            border-color: var(--cs-accent);
            transform: translateY(-4px);
        }

        .card-custom .card-icon {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(30, 58, 54, 0.06);
            color: var(--cs-primary);
            font-size: 1.4rem;
            border-radius: 14px;
            margin-bottom: 18px;
            flex-shrink: 0;
        }

        .card-custom h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--cs-text);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .card-custom p {
            font-size: 0.92rem;
            color: var(--cs-text-muted);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* ============ 封面图卡片 ============ */
        .cover-card {
            background: #fff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius);
            overflow: hidden;
            box-shadow: var(--cs-shadow);
            transition: var(--cs-transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .cover-card .cover-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
            background-color: var(--cs-bg-alt);
        }

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

        .cover-card .cover-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--cs-accent);
            background: rgba(179, 130, 78, 0.1);
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .cover-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--cs-text);
            margin-bottom: 8px;
            line-height: 1.45;
        }

        .cover-card p {
            font-size: 0.88rem;
            color: var(--cs-text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ============ 参数表 ============ */
        .spec-table-wrap {
            background: #fff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius);
            padding: 8px;
            box-shadow: var(--cs-shadow);
            overflow-x: auto;
        }

        .spec-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.92rem;
            min-width: 640px;
        }

        .spec-table th {
            background-color: var(--cs-primary);
            color: #fff;
            padding: 16px 18px;
            text-align: left;
            font-weight: 600;
            white-space: nowrap;
        }

        .spec-table th:first-child {
            border-top-left-radius: 12px;
        }

        .spec-table th:last-child {
            border-top-right-radius: 12px;
        }

        .spec-table td {
            padding: 15px 18px;
            border-bottom: 1px solid var(--cs-border);
            color: var(--cs-text);
            white-space: nowrap;
        }

        .spec-table tr:last-child td {
            border-bottom: none;
        }

        .spec-table tr:hover td {
            background-color: rgba(30, 58, 54, 0.03);
        }

        .spec-table td:first-child {
            font-weight: 600;
            color: var(--cs-primary);
        }

        /* ============ 流程步骤 ============ */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .step-item {
            position: relative;
            background: #fff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius);
            padding: 28px 24px;
            box-shadow: var(--cs-shadow);
            transition: var(--cs-transition);
        }

        .step-item:hover {
            box-shadow: var(--cs-shadow-hover);
            border-color: var(--cs-accent);
            transform: translateY(-3px);
        }

        .step-item .step-num {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--cs-accent);
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            border-radius: 50%;
            margin-bottom: 16px;
        }

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

        .step-item p {
            font-size: 0.88rem;
            color: var(--cs-text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        @media (max-width: 991.98px) {
            .steps-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 576px) {
            .steps-row {
                grid-template-columns: 1fr;
            }
            .step-item {
                padding: 20px 18px;
            }
        }

        /* ============ 对比表 ============ */
        .compare-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .compare-col {
            background: #fff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius);
            padding: 30px 26px;
            box-shadow: var(--cs-shadow);
            border-top: 4px solid var(--cs-accent);
        }

        .compare-col h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--cs-primary);
            margin-bottom: 14px;
        }

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

        .compare-col ul li {
            padding: 10px 0 10px 28px;
            position: relative;
            font-size: 0.92rem;
            color: var(--cs-text-muted);
            border-bottom: 1px solid var(--cs-bg-alt);
            line-height: 1.65;
        }

        .compare-col ul li:last-child {
            border-bottom: none;
        }

        .compare-col ul li::before {
            content: '\f058';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 10px;
            color: var(--cs-accent);
            font-size: 0.95rem;
        }

        @media (max-width: 768px) {
            .compare-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ============ 资讯列表 ============ */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            background: #fff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius);
            padding: 18px 20px;
            box-shadow: var(--cs-shadow);
            transition: var(--cs-transition);
        }

        .news-item:hover {
            box-shadow: var(--cs-shadow-hover);
            border-color: var(--cs-accent);
            transform: translateX(4px);
        }

        .news-item .news-date {
            flex-shrink: 0;
            width: 60px;
            text-align: center;
            background: var(--cs-bg-alt);
            border-radius: 10px;
            padding: 8px 6px;
        }

        .news-item .news-date .day {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--cs-primary);
            line-height: 1.1;
        }

        .news-item .news-date .mon {
            font-size: 0.72rem;
            color: var(--cs-text-muted);
        }

        .news-item .news-content {
            flex: 1;
        }

        .news-item .news-content h3 {
            font-size: 1.0rem;
            font-weight: 700;
            color: var(--cs-text);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .news-item .news-content p {
            font-size: 0.88rem;
            color: var(--cs-text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        @media (max-width: 576px) {
            .news-item {
                flex-direction: column;
                gap: 12px;
            }
            .news-item .news-date {
                width: auto;
                display: inline-flex;
                gap: 6px;
                align-items: baseline;
                justify-content: center;
            }
        }

        /* ============ 合作伙伴 ============ */
        .partners-wall {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .partner-logo {
            background: #fff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius-sm);
            padding: 20px 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--cs-text-muted);
            transition: var(--cs-transition);
            min-height: 80px;
            text-align: center;
            user-select: none;
        }

        .partner-logo:hover {
            border-color: var(--cs-accent);
            color: var(--cs-primary);
            box-shadow: var(--cs-shadow);
            transform: translateY(-2px);
        }

        @media (max-width: 991.98px) {
            .partners-wall {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 576px) {
            .partners-wall {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .partner-logo {
                font-size: 0.8rem;
                min-height: 60px;
                padding: 14px 10px;
            }
        }

        /* ============ FAQ ============ */
        .accordion-cs .accordion-item {
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius-sm) !important;
            margin-bottom: 12px;
            box-shadow: var(--cs-shadow);
            overflow: hidden;
            background: #fff;
        }

        .accordion-cs .accordion-button {
            background: #fff;
            color: var(--cs-text);
            font-weight: 600;
            font-size: 1.0rem;
            padding: 20px 22px;
            border-radius: var(--cs-radius-sm) !important;
            transition: var(--cs-transition);
        }

        .accordion-cs .accordion-button:not(.collapsed) {
            background: rgba(179, 130, 78, 0.06);
            color: var(--cs-primary);
            box-shadow: none;
        }

        .accordion-cs .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(179, 130, 78, 0.2);
            outline: none;
        }

        .accordion-cs .accordion-button::after {
            filter: brightness(0.6);
        }

        .accordion-cs .accordion-body {
            font-size: 0.92rem;
            color: var(--cs-text-muted);
            line-height: 1.8;
            padding: 16px 22px 20px;
        }

        /* ============ 表单 ============ */
        .form-card {
            background: #fff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius-lg);
            padding: 36px 32px;
            box-shadow: var(--cs-shadow);
        }

        .form-control-cs {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--cs-border);
            border-radius: 10px;
            font-size: 0.95rem;
            color: var(--cs-text);
            transition: var(--cs-transition);
            background-color: var(--cs-bg-soft);
            min-height: 48px;
        }

        .form-control-cs:focus {
            outline: none;
            border-color: var(--cs-accent);
            box-shadow: 0 0 0 3px rgba(179, 130, 78, 0.15);
            background-color: #fff;
        }

        .form-label-cs {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--cs-text);
            margin-bottom: 8px;
            display: block;
        }

        .form-text-cs {
            font-size: 0.8rem;
            color: var(--cs-text-muted);
            margin-top: 12px;
            text-align: center;
        }

        @media (max-width: 576px) {
            .form-card {
                padding: 24px 18px;
            }
        }

        /* ============ 页脚 ============ */
        .footer-cs {
            background-color: var(--cs-primary-dark);
            color: rgba(255, 255, 255, 0.78);
            padding: 48px 0 28px;
            font-size: 0.88rem;
        }

        .footer-cs .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            display: block;
        }

        .footer-cs .footer-text {
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.75;
            margin-bottom: 20px;
        }

        .footer-cs .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
        }

        .footer-cs .footer-links a {
            color: rgba(255, 255, 255, 0.72);
            font-size: 0.88rem;
            transition: var(--cs-transition);
            text-decoration: none;
        }

        .footer-cs .footer-links a:hover {
            color: var(--cs-accent);
            text-decoration: underline;
        }

        .footer-cs .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin: 28px 0 20px;
        }

        .footer-cs .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-cs .footer-bottom .footer-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        @media (max-width: 576px) {
            .footer-cs {
                padding: 36px 0 20px;
            }
            .footer-cs .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
        }

        /* ============ 背景图板块 ============ */
        .section-bg-image {
            background-image: url('/assets/images/915b513e785c636c.webp');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            position: relative;
            color: #fff;
        }

        .section-bg-image::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(30, 58, 54, 0.88);
            z-index: 1;
        }

        .section-bg-image .container-cs {
            position: relative;
            z-index: 2;
        }

        @media (max-width: 768px) {
            .section-bg-image {
                background-attachment: scroll;
            }
        }

/* roulang page: category2 */
:root {
            --cs-primary: #1e3a36;
            --cs-primary-dark: #16302c;
            --cs-primary-light: #2a4f49;
            --cs-accent: #b3824e;
            --cs-accent-hover: #99703e;
            --cs-bg: #f6f3ef;
            --cs-bg-alt: #efece6;
            --cs-bg-soft: #faf9f6;
            --cs-text: #1e2b29;
            --cs-text-muted: #677571;
            --cs-border: #e2ddd4;
            --cs-flag: #e9e4db;
            --cs-radius: 16px;
            --cs-radius-sm: 10px;
            --cs-radius-lg: 22px;
            --cs-shadow: 0 4px 18px rgba(30, 42, 40, 0.06);
            --cs-shadow-hover: 0 14px 32px rgba(30, 42, 40, 0.12);
            --cs-transition: all 0.28s cubic-bezier(0.22, 0.61, 0.36, 1);
            --cs-font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Helvetica Neue', Arial, sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--cs-font);
            background-color: var(--cs-bg);
            color: var(--cs-text);
            line-height: 1.85;
            font-size: 16px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--cs-accent);
            text-decoration: none;
            transition: var(--cs-transition);
        }
        a:hover {
            color: var(--cs-accent-hover);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--cs-accent);
            outline-offset: 3px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container-cs {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .section {
            padding: 88px 0;
            position: relative;
        }
        .section.bg-white {
            background-color: #ffffff;
        }
        .section.bg-alt {
            background-color: var(--cs-bg-alt);
        }
        .section.bg-soft {
            background-color: var(--cs-bg-soft);
        }
        .section.bg-dark {
            background-color: var(--cs-primary);
            color: #f0f2ef;
        }
        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--cs-accent);
            text-transform: uppercase;
            margin-bottom: 14px;
            border-left: 4px solid var(--cs-accent);
            padding-left: 12px;
        }
        .section-title {
            font-size: 2.25rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--cs-text);
            margin-bottom: 18px;
            letter-spacing: 0.01em;
        }
        .bg-dark .section-title {
            color: #ffffff;
        }
        .section-desc {
            font-size: 1.05rem;
            color: var(--cs-text-muted);
            max-width: 720px;
            line-height: 1.95;
            margin-bottom: 0;
        }
        .bg-dark .section-desc {
            color: rgba(240, 242, 239, 0.8);
        }
        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.6rem;
                margin-bottom: 12px;
            }
            .section-desc {
                font-size: 0.95rem;
                line-height: 1.8;
            }
        }
        @media (max-width: 576px) {
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-desc {
                font-size: 0.88rem;
            }
        }
        /* ============ 导航 ============ */
        .cs-navbar {
            background-color: rgba(30, 58, 54, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 12px 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: box-shadow 0.3s ease, padding 0.3s ease;
            min-height: 72px;
            display: flex;
            align-items: center;
        }
        .cs-navbar .navbar-brand {
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .cs-navbar .navbar-brand .brand-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--cs-accent);
            color: #fff;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 700;
            letter-spacing: 0;
            flex-shrink: 0;
        }
        .cs-navbar .nav-link {
            color: rgba(255, 255, 255, 0.82);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: var(--cs-transition);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .cs-navbar .nav-link:hover,
        .cs-navbar .nav-link:focus {
            color: #ffffff;
            background-color: rgba(255, 255, 255, 0.08);
        }
        .cs-navbar .nav-link.active {
            color: #ffffff;
            background-color: var(--cs-accent);
            font-weight: 600;
        }
        .cs-navbar .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            padding: 8px 12px;
            border-radius: 8px;
        }
        .cs-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(179, 130, 78, 0.4);
            outline: none;
        }
        .cs-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 255, 255, 0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        /* ============ 面包屑 ============ */
        .breadcrumb-cs {
            background-color: var(--cs-bg-soft);
            padding: 18px 0;
            border-bottom: 1px solid var(--cs-border);
            font-size: 0.88rem;
            color: var(--cs-text-muted);
        }
        .breadcrumb-cs ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 8px;
        }
        .breadcrumb-cs ol li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-cs ol li + li::before {
            content: "/";
            color: var(--cs-text-muted);
            opacity: 0.6;
            margin-right: 4px;
        }
        .breadcrumb-cs a {
            color: var(--cs-accent);
            font-weight: 500;
        }
        .breadcrumb-cs a:hover {
            color: var(--cs-accent-hover);
        }
        /* ============ 分类页头 ============ */
        .category-header {
            padding: 64px 0 40px;
            background: linear-gradient(135deg, #ffffff 0%, var(--cs-bg-soft) 100%);
            border-bottom: 1px solid var(--cs-border);
        }
        .category-header h1 {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--cs-text);
            margin-bottom: 16px;
            line-height: 1.25;
        }
        .category-header .lead {
            font-size: 1.15rem;
            color: var(--cs-text-muted);
            max-width: 800px;
            line-height: 1.95;
        }
        .badge-cs {
            display: inline-block;
            background: var(--cs-accent);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            letter-spacing: 0.04em;
        }
        /* ============ 产品卡片 ============ */
        .product-card {
            background: #fff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius);
            overflow: hidden;
            box-shadow: var(--cs-shadow);
            transition: var(--cs-transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .product-card:hover {
            box-shadow: var(--cs-shadow-hover);
            transform: translateY(-4px);
            border-color: var(--cs-accent);
        }
        .product-card .cover-wrap {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background-color: var(--cs-flag);
        }
        .product-card .cover-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .product-card:hover .cover-wrap img {
            transform: scale(1.04);
        }
        .product-card .card-body {
            padding: 22px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
            gap: 10px;
        }
        .product-card .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin: 0;
            color: var(--cs-text);
            line-height: 1.4;
        }
        .product-card .card-text {
            font-size: 0.92rem;
            color: var(--cs-text-muted);
            margin: 0;
            line-height: 1.8;
            flex: 1;
        }
        .product-card .meta-tag {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 4px;
        }
        .product-card .meta-tag .tag {
            background: var(--cs-flag);
            color: var(--cs-primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 999px;
            letter-spacing: 0.02em;
        }
        .card-link {
            color: var(--cs-accent);
            font-weight: 600;
            font-size: 0.9rem;
        }
        .card-link:hover {
            color: var(--cs-accent-hover);
        }
        /* ============ 特色数据条 ============ */
        .data-strip {
            background: var(--cs-primary);
            border-radius: var(--cs-radius-lg);
            padding: 32px 28px;
            color: #f0f2ef;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .data-strip .data-item {
            flex: 1 1 180px;
            min-width: 140px;
        }
        .data-strip .data-number {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
        }
        .data-strip .data-label {
            font-size: 0.9rem;
            color: rgba(240, 242, 239, 0.8);
            margin-top: 4px;
        }
        .data-strip .data-highlight {
            color: var(--cs-accent);
            font-weight: 700;
        }
        /* ============ 对比表格 ============ */
        .compare-table-wrap {
            border-radius: var(--cs-radius);
            border: 1px solid var(--cs-border);
            overflow: hidden;
            box-shadow: var(--cs-shadow);
            background: #fff;
        }
        .compare-table-wrap .table {
            margin-bottom: 0;
            vertical-align: middle;
        }
        .compare-table-wrap .table thead th {
            background-color: var(--cs-primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 16px 20px;
            border-bottom: none;
        }
        .compare-table-wrap .table tbody td {
            padding: 14px 20px;
            font-size: 0.92rem;
            color: var(--cs-text);
            border-color: var(--cs-border);
            vertical-align: middle;
        }
        .compare-table-wrap .table tbody tr:hover td {
            background-color: var(--cs-bg-soft);
        }
        .compare-check {
            color: var(--cs-accent);
            font-weight: 600;
        }
        /* ============ 提示框 ============ */
        .notice-box {
            background: #fff;
            border-left: 4px solid var(--cs-accent);
            border-radius: var(--cs-radius-sm);
            padding: 24px 28px;
            box-shadow: var(--cs-shadow);
            border-top: 1px solid var(--cs-border);
            border-right: 1px solid var(--cs-border);
            border-bottom: 1px solid var(--cs-border);
        }
        .notice-box h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--cs-text);
        }
        .notice-box p {
            font-size: 0.95rem;
            color: var(--cs-text-muted);
            margin-bottom: 0;
            line-height: 1.85;
        }
        /* ============ FAQ ============ */
        .accordion-cs .accordion-item {
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius-sm) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
            box-shadow: var(--cs-shadow);
        }
        .accordion-cs .accordion-button {
            background: #fff;
            color: var(--cs-text);
            font-weight: 600;
            padding: 18px 22px;
            font-size: 0.98rem;
            line-height: 1.5;
            border-radius: var(--cs-radius-sm) !important;
        }
        .accordion-cs .accordion-button:not(.collapsed) {
            background: var(--cs-primary);
            color: #fff;
            box-shadow: none;
        }
        .accordion-cs .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(179, 130, 78, 0.4);
            outline: none;
        }
        .accordion-cs .accordion-body {
            padding: 18px 22px;
            font-size: 0.92rem;
            color: var(--cs-text-muted);
            line-height: 1.85;
        }
        .accordion-button::after {
            filter: invert(0.7);
        }
        /* ============ CTA ============ */
        .cta-band {
            background: linear-gradient(135deg, var(--cs-primary) 0%, var(--cs-primary-light) 100%);
            border-radius: var(--cs-radius-lg);
            padding: 48px 40px;
            color: #f0f2ef;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-band h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-band p {
            color: rgba(240, 242, 239, 0.85);
            font-size: 1rem;
            max-width: 620px;
            margin-left: auto;
            margin-right: auto;
            margin-bottom: 24px;
        }
        .cta-band .btn-cs-light {
            background: #fff;
            color: var(--cs-primary);
            padding: 12px 32px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            transition: var(--cs-transition);
        }
        .cta-band .btn-cs-light:hover {
            background: var(--cs-accent);
            color: #fff;
            transform: translateY(-2px);
        }
        /* ============ 按钮 ============ */
        .btn-cs {
            background: var(--cs-accent);
            color: #fff;
            border: none;
            padding: 12px 32px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--cs-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            min-height: 44px;
        }
        .btn-cs:hover {
            background: var(--cs-accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 18px rgba(179, 130, 78, 0.3);
        }
        .btn-cs-outline {
            background: transparent;
            color: var(--cs-accent);
            border: 1px solid var(--cs-accent);
            padding: 12px 32px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--cs-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            min-height: 44px;
        }
        .btn-cs-outline:hover {
            background: var(--cs-accent);
            color: #fff;
            transform: translateY(-2px);
        }
        /* ============ 页脚 ============ */
        .footer-cs {
            background-color: var(--cs-primary-dark);
            color: rgba(240, 242, 239, 0.8);
            padding: 56px 0 32px;
            margin-top: 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-cs .footer-brand {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            display: block;
            margin-bottom: 12px;
        }
        .footer-cs .footer-text {
            font-size: 0.9rem;
            line-height: 1.8;
            max-width: 480px;
            color: rgba(240, 242, 239, 0.7);
        }
        .footer-cs .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
        }
        .footer-cs .footer-links a {
            color: rgba(240, 242, 239, 0.75);
            font-size: 0.88rem;
            font-weight: 500;
            transition: var(--cs-transition);
        }
        .footer-cs .footer-links a:hover {
            color: #fff;
        }
        .footer-cs .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin: 28px 0 24px;
        }
        .footer-cs .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 0.78rem;
            color: rgba(240, 242, 239, 0.5);
        }
        .footer-cs .footer-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
        }
        .footer-cs .footer-meta a {
            color: rgba(240, 242, 239, 0.5);
            transition: var(--cs-transition);
        }
        .footer-cs .footer-meta a:hover {
            color: #fff;
        }
        @media (max-width: 992px) {
            .cs-navbar .navbar-collapse {
                background: rgba(30, 58, 54, 0.99);
                padding: 16px 20px;
                border-radius: 0 0 16px 16px;
                margin-top: 10px;
            }
            .cs-navbar .nav-link {
                padding: 12px 16px !important;
                font-size: 0.95rem;
            }
            .footer-cs .footer-links {
                justify-content: flex-start;
            }
        }
        @media (max-width: 768px) {
            .category-header h1 {
                font-size: 2rem;
            }
            .cta-band {
                padding: 36px 20px;
            }
            .cta-band h2 {
                font-size: 1.5rem;
            }
            .data-strip {
                padding: 24px 18px;
                gap: 16px;
            }
        }
        @media (max-width: 576px) {
            .category-header h1 {
                font-size: 1.7rem;
            }
            .product-card .card-body {
                padding: 16px;
            }
            .btn-cs,
            .btn-cs-outline {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category1 */
:root {
            --cs-primary: #1e3a36;
            --cs-primary-dark: #16302c;
            --cs-primary-light: #2a4f49;
            --cs-accent: #b3824e;
            --cs-accent-hover: #99703e;
            --cs-bg: #f6f3ef;
            --cs-bg-alt: #efece6;
            --cs-bg-soft: #faf9f6;
            --cs-text: #1e2b29;
            --cs-text-muted: #677571;
            --cs-border: #e2ddd4;
            --cs-flag: #e9e4db;
            --cs-radius: 16px;
            --cs-radius-sm: 10px;
            --cs-radius-lg: 22px;
            --cs-shadow: 0 4px 18px rgba(30, 42, 40, 0.06);
            --cs-shadow-hover: 0 14px 32px rgba(30, 42, 40, 0.12);
            --cs-transition: all 0.28s cubic-bezier(0.22, 0.61, 0.36, 1);
            --cs-font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Helvetica Neue', Arial, sans-serif;
        }

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

        body {
            font-family: var(--cs-font);
            background-color: var(--cs-bg);
            color: var(--cs-text);
            line-height: 1.85;
            font-size: 16px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--cs-accent);
            text-decoration: none;
            transition: var(--cs-transition);
        }
        a:hover {
            color: var(--cs-accent-hover);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--cs-accent);
            outline-offset: 3px;
        }

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

        .container-cs {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .section {
            padding: 88px 0;
            position: relative;
        }
        .section.bg-white {
            background-color: #ffffff;
        }
        .section.bg-alt {
            background-color: var(--cs-bg-alt);
        }
        .section.bg-soft {
            background-color: var(--cs-bg-soft);
        }
        .section.bg-dark {
            background-color: var(--cs-primary);
            color: #f0f2ef;
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--cs-accent);
            text-transform: uppercase;
            margin-bottom: 14px;
            border-left: 4px solid var(--cs-accent);
            padding-left: 12px;
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--cs-text);
            margin-bottom: 18px;
            letter-spacing: 0.01em;
        }
        .bg-dark .section-title {
            color: #ffffff;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--cs-text-muted);
            max-width: 720px;
            line-height: 1.95;
            margin-bottom: 0;
        }
        .bg-dark .section-desc {
            color: rgba(240, 242, 239, 0.8);
        }

        /* ============ 导航 ============ */
        .cs-navbar {
            background-color: rgba(30, 58, 54, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 12px 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: box-shadow 0.3s ease, padding 0.3s ease;
            min-height: 72px;
            display: flex;
            align-items: center;
        }
        .cs-navbar .navbar-brand {
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .cs-navbar .navbar-brand .brand-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--cs-accent);
            color: #fff;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 700;
            letter-spacing: 0;
            flex-shrink: 0;
        }
        .cs-navbar .nav-link {
            color: rgba(255, 255, 255, 0.82);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: var(--cs-transition);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .cs-navbar .nav-link:hover,
        .cs-navbar .nav-link:focus {
            color: #ffffff;
            background-color: rgba(255, 255, 255, 0.08);
        }
        .cs-navbar .nav-link.active {
            color: #ffffff;
            background-color: var(--cs-accent);
            font-weight: 600;
        }
        .cs-navbar .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            padding: 8px 12px;
            border-radius: 8px;
        }
        .cs-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(179, 130, 78, 0.4);
            outline: none;
        }
        .cs-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ============ 面包屑 ============ */
        .breadcrumb-cs {
            background-color: transparent;
            padding: 20px 0 0;
            margin-bottom: 0;
            font-size: 0.88rem;
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .breadcrumb-cs a {
            color: var(--cs-text-muted);
            font-weight: 500;
        }
        .breadcrumb-cs a:hover {
            color: var(--cs-accent);
        }
        .breadcrumb-cs .separator {
            color: var(--cs-border);
            font-size: 0.75rem;
        }
        .breadcrumb-cs .current {
            color: var(--cs-text);
            font-weight: 600;
        }

        /* ============ 分类页头部 ============ */
        .category-header {
            padding: 48px 0 32px;
            background-color: #ffffff;
            border-bottom: 1px solid var(--cs-border);
        }
        .category-header .category-badge {
            display: inline-block;
            background-color: var(--cs-primary);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 18px;
        }
        .category-header h1 {
            font-size: 2.6rem;
            font-weight: 700;
            line-height: 1.28;
            color: var(--cs-text);
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }
        .category-header .header-desc {
            font-size: 1.05rem;
            color: var(--cs-text-muted);
            max-width: 680px;
            line-height: 1.9;
        }

        /* ============ 按钮 ============ */
        .btn-cs {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--cs-accent);
            color: #ffffff;
            border: none;
            border-radius: 999px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: var(--cs-transition);
            min-height: 44px;
            cursor: pointer;
            text-decoration: none;
        }
        .btn-cs:hover {
            background-color: var(--cs-accent-hover);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(179, 130, 78, 0.3);
        }
        .btn-cs:active {
            transform: translateY(0);
            box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15);
        }
        .btn-cs-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: transparent;
            color: var(--cs-primary);
            border: 1.5px solid var(--cs-primary);
            border-radius: 999px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: var(--cs-transition);
            min-height: 44px;
            cursor: pointer;
            text-decoration: none;
        }
        .btn-cs-outline:hover {
            background-color: var(--cs-primary);
            color: #ffffff;
            border-color: var(--cs-primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(30, 58, 54, 0.18);
        }

        /* ============ 分类页列表主体 ============ */
        .news-list-section {
            padding: 56px 0;
            background-color: var(--cs-bg);
        }
        .news-list-card {
            display: flex;
            flex-direction: row;
            background-color: #ffffff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius);
            overflow: hidden;
            box-shadow: var(--cs-shadow);
            transition: var(--cs-transition);
            margin-bottom: 20px;
        }
        .news-list-card:hover {
            box-shadow: var(--cs-shadow-hover);
            transform: translateY(-4px);
            border-color: #d5cfc4;
        }
        .news-list-card .news-cover {
            flex: 0 0 260px;
            max-width: 260px;
            overflow: hidden;
            position: relative;
        }
        .news-list-card .news-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 220px;
            transition: var(--cs-transition);
        }
        .news-list-card:hover .news-cover img {
            transform: scale(1.04);
        }
        .news-list-card .news-body {
            flex: 1;
            padding: 24px 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .news-list-card .news-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 12px;
            flex-wrap: wrap;
        }
        .news-list-card .news-tag {
            background-color: var(--cs-flag);
            color: var(--cs-primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            letter-spacing: 0.03em;
        }
        .news-list-card .news-date {
            font-size: 0.82rem;
            color: var(--cs-text-muted);
        }
        .news-list-card .news-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--cs-text);
            margin-bottom: 10px;
            line-height: 1.45;
        }
        .news-list-card .news-summary {
            font-size: 0.9rem;
            color: var(--cs-text-muted);
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* ============ 数据摘要条 ============ */
        .data-strip-section {
            background-color: var(--cs-primary);
            padding: 40px 0;
            color: #fff;
        }
        .data-strip-section .data-item {
            text-align: center;
            padding: 16px 12px;
        }
        .data-strip-section .data-number {
            font-size: 2.4rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.02em;
            line-height: 1.2;
        }
        .data-strip-section .data-number .unit {
            font-size: 1rem;
            font-weight: 500;
            color: var(--cs-accent);
            margin-left: 2px;
        }
        .data-strip-section .data-label {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 6px;
            letter-spacing: 0.03em;
        }

        /* ============ 专题/场景入口 ============ */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .topic-card {
            background-color: #ffffff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius);
            overflow: hidden;
            box-shadow: var(--cs-shadow);
            transition: var(--cs-transition);
            cursor: pointer;
        }
        .topic-card:hover {
            box-shadow: var(--cs-shadow-hover);
            transform: translateY(-4px);
            border-color: #d5cfc4;
        }
        .topic-card .topic-cover {
            width: 100%;
            height: 190px;
            overflow: hidden;
        }
        .topic-card .topic-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--cs-transition);
        }
        .topic-card:hover .topic-cover img {
            transform: scale(1.05);
        }
        .topic-card .topic-body {
            padding: 20px 24px;
        }
        .topic-card .topic-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--cs-text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .topic-card .topic-desc {
            font-size: 0.88rem;
            color: var(--cs-text-muted);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* ============ FAQ ============ */
        .faq-section {
            background-color: #ffffff;
        }
        .faq-item {
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius-sm);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--cs-transition);
        }
        .faq-item:hover {
            border-color: #d5cfc4;
            box-shadow: 0 2px 10px rgba(30, 42, 40, 0.05);
        }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--cs-text);
            cursor: pointer;
            background-color: var(--cs-bg-soft);
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--cs-transition);
            gap: 16px;
        }
        .faq-item .faq-question:hover {
            background-color: var(--cs-bg-alt);
        }
        .faq-item .faq-question .faq-icon {
            flex-shrink: 0;
            color: var(--cs-accent);
            font-size: 0.85rem;
            transition: transform 0.3s ease;
        }
        .faq-item .faq-answer {
            padding: 0 22px 20px;
            font-size: 0.9rem;
            color: var(--cs-text-muted);
            line-height: 1.85;
        }

        /* ============ CTA 区块 ============ */
        .cta-section {
            background-color: var(--cs-bg-alt);
            padding: 64px 0;
        }
        .cta-card {
            background-color: var(--cs-primary);
            border-radius: var(--cs-radius-lg);
            padding: 48px 40px;
            color: #ffffff;
            display: flex;
            flex-direction: row;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
        }
        .cta-card h2 {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: #ffffff;
            line-height: 1.35;
        }
        .cta-card p {
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: 0;
            font-size: 0.95rem;
            line-height: 1.8;
        }

        /* ============ 平台保障摘要 ============ */
        .assurance-summary {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .assurance-item {
            background-color: #ffffff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius-sm);
            padding: 24px 20px;
            text-align: center;
            transition: var(--cs-transition);
        }
        .assurance-item:hover {
            box-shadow: var(--cs-shadow);
            transform: translateY(-3px);
        }
        .assurance-item .assurance-icon {
            font-size: 1.8rem;
            color: var(--cs-accent);
            margin-bottom: 12px;
        }
        .assurance-item h3 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--cs-text);
            margin-bottom: 6px;
        }
        .assurance-item p {
            font-size: 0.82rem;
            color: var(--cs-text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ============ 页脚 ============ */
        .footer-cs {
            background-color: var(--cs-primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 28px;
            font-size: 0.9rem;
        }
        .footer-cs .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            display: inline-block;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-cs .footer-text {
            color: rgba(255, 255, 255, 0.6);
            max-width: 420px;
            line-height: 1.8;
            font-size: 0.88rem;
            margin-bottom: 0;
        }
        .footer-cs .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
        }
        .footer-cs .footer-links li {
            display: inline;
        }
        .footer-cs .footer-links a {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.88rem;
            transition: var(--cs-transition);
        }
        .footer-cs .footer-links a:hover {
            color: #ffffff;
        }
        .footer-cs .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin: 30px 0 20px;
        }
        .footer-cs .footer-bottom {
            display: flex;
            flex-direction: row;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-cs .footer-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-cs .footer-meta a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.78rem;
        }
        .footer-cs .footer-meta a:hover {
            color: #ffffff;
        }
        .footer-cs .footer-meta span {
            font-size: 0.78rem;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 991px) {
            .news-list-card {
                flex-direction: column;
            }
            .news-list-card .news-cover {
                flex: 0 0 auto;
                max-width: 100%;
                height: 220px;
            }
            .news-list-card .news-cover img {
                width: 100%;
                height: 220px;
                object-fit: cover;
                min-height: auto;
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .assurance-summary {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-card {
                flex-direction: column;
                align-items: flex-start;
                padding: 32px 28px;
            }
            .category-header h1 {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.6rem;
                margin-bottom: 12px;
            }
            .section-desc {
                font-size: 0.95rem;
                line-height: 1.8;
            }
            .category-header {
                padding: 32px 0 24px;
            }
            .category-header h1 {
                font-size: 1.6rem;
            }
            .category-header .header-desc {
                font-size: 0.95rem;
            }
            .news-list-card .news-body {
                padding: 18px 20px;
            }
            .news-list-card .news-title {
                font-size: 1rem;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .assurance-summary {
                grid-template-columns: 1fr;
            }
            .data-strip-section .data-number {
                font-size: 1.8rem;
            }
            .footer-cs .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-card h2 {
                font-size: 1.35rem;
            }
        }

        @media (max-width: 520px) {
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-desc {
                font-size: 0.88rem;
            }
            .cs-navbar .navbar-brand {
                font-size: 1.15rem;
            }
            .cs-navbar .nav-link {
                font-size: 0.88rem;
                padding: 7px 12px !important;
            }
            .news-list-card .news-cover {
                height: 180px;
            }
            .news-list-card .news-cover img {
                height: 180px;
            }
            .news-list-card .news-body {
                padding: 16px 18px;
            }
            .news-list-card .news-title {
                font-size: 0.95rem;
            }
            .news-list-card .news-summary {
                font-size: 0.85rem;
            }
            .category-header h1 {
                font-size: 1.4rem;
            }
            .cta-card {
                padding: 24px 20px;
            }
            .cta-card h2 {
                font-size: 1.2rem;
            }
            .footer-cs {
                padding: 40px 0 20px;
            }
        }

/* roulang page: category3 */
:root {
            --cs-primary: #1e3a36;
            --cs-primary-dark: #16302c;
            --cs-primary-light: #2a4f49;
            --cs-accent: #b3824e;
            --cs-accent-hover: #99703e;
            --cs-bg: #f6f3ef;
            --cs-bg-alt: #efece6;
            --cs-bg-soft: #faf9f6;
            --cs-text: #1e2b29;
            --cs-text-muted: #677571;
            --cs-border: #e2ddd4;
            --cs-flag: #e9e4db;
            --cs-radius: 16px;
            --cs-radius-sm: 10px;
            --cs-radius-lg: 22px;
            --cs-shadow: 0 4px 18px rgba(30, 42, 40, 0.06);
            --cs-shadow-hover: 0 14px 32px rgba(30, 42, 40, 0.12);
            --cs-transition: all 0.28s cubic-bezier(0.22, 0.61, 0.36, 1);
            --cs-font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Helvetica Neue', Arial, sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--cs-font);
            background-color: var(--cs-bg);
            color: var(--cs-text);
            line-height: 1.85;
            font-size: 16px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--cs-accent);
            text-decoration: none;
            transition: var(--cs-transition);
        }
        a:hover {
            color: var(--cs-accent-hover);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--cs-accent);
            outline-offset: 3px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container-cs {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .section {
            padding: 72px 0;
            position: relative;
        }
        .section.bg-white {
            background-color: #ffffff;
        }
        .section.bg-alt {
            background-color: var(--cs-bg-alt);
        }
        .section.bg-soft {
            background-color: var(--cs-bg-soft);
        }
        .section.bg-dark {
            background-color: var(--cs-primary);
            color: #f0f2ef;
        }
        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--cs-accent);
            text-transform: uppercase;
            margin-bottom: 14px;
            border-left: 4px solid var(--cs-accent);
            padding-left: 12px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--cs-text);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }
        .bg-dark .section-title {
            color: #ffffff;
        }
        .section-desc {
            font-size: 1.02rem;
            color: var(--cs-text-muted);
            max-width: 720px;
            line-height: 1.95;
            margin-bottom: 0;
        }
        .bg-dark .section-desc {
            color: rgba(240, 242, 239, 0.8);
        }

        /* ============ 导航 ============ */
        .cs-navbar {
            background-color: rgba(30, 58, 54, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 10px 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: box-shadow 0.3s ease, padding 0.3s ease;
            min-height: 70px;
            display: flex;
            align-items: center;
        }
        .cs-navbar .navbar-brand {
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .cs-navbar .navbar-brand .brand-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--cs-accent);
            color: #fff;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 700;
            letter-spacing: 0;
            flex-shrink: 0;
        }
        .cs-navbar .nav-link {
            color: rgba(255, 255, 255, 0.82);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: var(--cs-transition);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .cs-navbar .nav-link:hover,
        .cs-navbar .nav-link:focus {
            color: #ffffff;
            background-color: rgba(255, 255, 255, 0.08);
        }
        .cs-navbar .nav-link.active {
            color: #ffffff;
            background-color: var(--cs-accent);
            font-weight: 600;
        }
        .cs-navbar .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            padding: 8px 12px;
            border-radius: 8px;
        }
        .cs-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(179, 130, 78, 0.4);
            outline: none;
        }
        .cs-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255,255,255,0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ============ 面包屑 ============ */
        .breadcrumb-cs {
            background: transparent;
            margin: 0;
            padding: 18px 0 6px;
            font-size: 0.9rem;
        }
        .breadcrumb-cs .breadcrumb {
            margin: 0;
            padding: 0;
            background: transparent;
        }
        .breadcrumb-cs .breadcrumb-item a {
            color: var(--cs-text-muted);
        }
        .breadcrumb-cs .breadcrumb-item a:hover {
            color: var(--cs-accent);
        }
        .breadcrumb-cs .breadcrumb-item.active {
            color: var(--cs-accent);
            font-weight: 600;
        }
        .breadcrumb-item+.breadcrumb-item::before {
            color: var(--cs-text-muted);
            opacity: 0.5;
        }

        /* ============ 分类页 H1 区域 ============ */
        .category-hero {
            background: linear-gradient(135deg, #ffffff 0%, var(--cs-bg-soft) 100%);
            padding: 40px 0 48px;
            border-bottom: 1px solid var(--cs-border);
            position: relative;
            overflow: hidden;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(179, 130, 78, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-hero .h1-category {
            font-size: 2.35rem;
            font-weight: 700;
            color: var(--cs-text);
            margin-bottom: 14px;
            letter-spacing: 0.01em;
            line-height: 1.3;
        }
        .category-hero .lead-category {
            font-size: 1.08rem;
            color: var(--cs-text-muted);
            max-width: 700px;
            line-height: 1.9;
            margin-bottom: 0;
        }

        /* ============ 按钮 ============ */
        .btn-cs {
            background-color: var(--cs-primary);
            color: #ffffff;
            border: none;
            border-radius: 999px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: var(--cs-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 14px rgba(30, 58, 54, 0.2);
        }
        .btn-cs:hover,
        .btn-cs:focus {
            background-color: var(--cs-primary-dark);
            color: #ffffff;
            box-shadow: 0 8px 24px rgba(30, 58, 54, 0.3);
            transform: translateY(-1px);
        }
        .btn-cs-accent {
            background-color: var(--cs-accent);
            color: #fff;
            border: none;
            border-radius: 999px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: var(--cs-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 14px rgba(179, 130, 78, 0.25);
        }
        .btn-cs-accent:hover,
        .btn-cs-accent:focus {
            background-color: var(--cs-accent-hover);
            color: #fff;
            box-shadow: 0 8px 24px rgba(179, 130, 78, 0.35);
            transform: translateY(-1px);
        }
        .btn-cs-outline {
            background: transparent;
            color: var(--cs-primary);
            border: 1.5px solid var(--cs-primary);
            border-radius: 999px;
            padding: 11px 26px;
            font-size: 0.95rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: var(--cs-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-cs-outline:hover,
        .btn-cs-outline:focus {
            background-color: var(--cs-primary);
            color: #fff;
            border-color: var(--cs-primary);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(30, 58, 54, 0.2);
        }

        /* ============ 卡片 ============ */
        .card-cs {
            background: #ffffff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius);
            box-shadow: var(--cs-shadow);
            transition: var(--cs-transition);
            overflow: hidden;
            height: 100%;
        }
        .card-cs:hover {
            box-shadow: var(--cs-shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(179, 130, 78, 0.3);
        }
        .card-cs .card-body {
            padding: 24px 26px;
        }
        .card-cs .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--cs-text);
            margin-bottom: 10px;
            line-height: 1.45;
        }
        .card-cs .card-text {
            font-size: 0.93rem;
            color: var(--cs-text-muted);
            line-height: 1.85;
            margin-bottom: 12px;
        }
        .card-cs .card-img-wrap {
            position: relative;
            width: 100%;
            overflow: hidden;
            aspect-ratio: 16/9;
            background: var(--cs-bg-alt);
        }
        .card-cs .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card-cs:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .card-cs .badge-cs {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(30, 58, 54, 0.88);
            color: #fff;
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .card-cs .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.82rem;
            color: var(--cs-text-muted);
            margin-bottom: 10px;
        }
        .card-cs .card-meta i {
            color: var(--cs-accent);
            margin-right: 4px;
        }

        /* ============ 数据块 ============ */
        .stat-card {
            background: #ffffff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius);
            box-shadow: var(--cs-shadow);
            padding: 26px 24px;
            text-align: center;
            height: 100%;
            transition: var(--cs-transition);
        }
        .stat-card:hover {
            box-shadow: var(--cs-shadow-hover);
            transform: translateY(-3px);
        }
        .stat-card .stat-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--cs-primary);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: 0.01em;
        }
        .stat-card .stat-number .accent {
            color: var(--cs-accent);
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--cs-text-muted);
            font-weight: 500;
            line-height: 1.5;
        }

        /* ============ 列表主体 ============ */
        .list-item-cs {
            display: flex;
            gap: 22px;
            background: #ffffff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius);
            box-shadow: var(--cs-shadow);
            padding: 20px;
            transition: var(--cs-transition);
            margin-bottom: 18px;
        }
        .list-item-cs:hover {
            box-shadow: var(--cs-shadow-hover);
            transform: translateY(-2px);
            border-color: rgba(179, 130, 78, 0.25);
        }
        .list-item-cs .list-img {
            flex-shrink: 0;
            width: 220px;
            height: 140px;
            border-radius: var(--cs-radius-sm);
            overflow: hidden;
            background: var(--cs-bg-alt);
        }
        .list-item-cs .list-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .list-item-cs:hover .list-img img {
            transform: scale(1.05);
        }
        .list-item-cs .list-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }
        .list-item-cs .list-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--cs-text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .list-item-cs .list-desc {
            font-size: 0.93rem;
            color: var(--cs-text-muted);
            line-height: 1.85;
            margin-bottom: 10px;
            flex: 1;
        }
        .list-item-cs .list-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
        }
        .list-item-cs .list-tags .tag-cs {
            background: var(--cs-flag);
            color: var(--cs-text-muted);
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 0.78rem;
            font-weight: 500;
            letter-spacing: 0.02em;
        }
        .list-item-cs .list-tags .tag-date {
            color: var(--cs-text-muted);
            font-size: 0.82rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-left: auto;
        }
        .list-item-cs .list-tags .tag-date i {
            color: var(--cs-accent);
        }

        /* ============ 技术方向卡片 ============ */
        .tech-card {
            background: #ffffff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius);
            box-shadow: var(--cs-shadow);
            padding: 24px;
            height: 100%;
            transition: var(--cs-transition);
            text-align: left;
            position: relative;
            overflow: hidden;
        }
        .tech-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--cs-accent), var(--cs-primary));
            border-radius: var(--cs-radius) var(--cs-radius) 0 0;
        }
        .tech-card:hover {
            box-shadow: var(--cs-shadow-hover);
            transform: translateY(-3px);
        }
        .tech-card .tech-icon {
            width: 48px;
            height: 48px;
            background: var(--cs-flag);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--cs-primary);
            font-size: 1.25rem;
            margin-bottom: 16px;
        }
        .tech-card .tech-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--cs-text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .tech-card .tech-desc {
            font-size: 0.88rem;
            color: var(--cs-text-muted);
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* ============ FAQ ============ */
        .faq-cs .accordion-item {
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius-sm) !important;
            margin-bottom: 14px;
            background: #ffffff;
            box-shadow: 0 2px 8px rgba(30, 42, 40, 0.04);
            overflow: hidden;
        }
        .faq-cs .accordion-button {
            font-weight: 600;
            color: var(--cs-text);
            background: #ffffff;
            padding: 20px 24px;
            font-size: 0.98rem;
            line-height: 1.5;
            border-radius: var(--cs-radius-sm) !important;
        }
        .faq-cs .accordion-button:not(.collapsed) {
            background: var(--cs-bg-soft);
            color: var(--cs-primary);
            box-shadow: none;
        }
        .faq-cs .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(179, 130, 78, 0.2);
            border-color: var(--cs-accent);
        }
        .faq-cs .accordion-button::after {
            background-size: 1.1rem;
        }
        .faq-cs .accordion-body {
            padding: 18px 24px 22px;
            font-size: 0.92rem;
            color: var(--cs-text-muted);
            line-height: 1.9;
            background: #ffffff;
        }

        /* ============ CTA ============ */
        .cta-cs {
            background: linear-gradient(135deg, var(--cs-primary) 0%, var(--cs-primary-dark) 100%);
            padding: 56px 0;
            border-radius: var(--cs-radius-lg);
            color: #f0f2ef;
            position: relative;
            overflow: hidden;
        }
        .cta-cs::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(179, 130, 78, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-cs .cta-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
            line-height: 1.35;
            position: relative;
            z-index: 1;
        }
        .cta-cs .cta-desc {
            font-size: 1rem;
            color: rgba(240, 242, 239, 0.85);
            line-height: 1.9;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 600px;
        }
        .cta-cs .btn-cs-accent {
            position: relative;
            z-index: 1;
        }

        /* ============ 页脚 ============ */
        .footer-cs {
            background: var(--cs-primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 28px;
            margin-top: 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-cs .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            display: block;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-cs .footer-text {
            font-size: 0.9rem;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.65);
            max-width: 420px;
            margin-bottom: 0;
        }
        .footer-cs .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
        }
        .footer-cs .footer-links li {
            margin: 0;
        }
        .footer-cs .footer-links a {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--cs-transition);
            text-decoration: none;
        }
        .footer-cs .footer-links a:hover {
            color: #ffffff;
            text-decoration: underline;
        }
        .footer-cs .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin: 28px 0 20px;
        }
        .footer-cs .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .footer-cs .footer-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 18px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
            align-items: center;
        }
        .footer-cs .footer-meta a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
            transition: var(--cs-transition);
        }
        .footer-cs .footer-meta a:hover {
            color: rgba(255, 255, 255, 0.85);
            text-decoration: underline;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 991.98px) {
            .cs-navbar .navbar-collapse {
                background: rgba(30, 58, 54, 0.98);
                border-radius: 0 0 var(--cs-radius) var(--cs-radius);
                padding: 16px 12px;
                margin-top: 10px;
                border: 1px solid rgba(255, 255, 255, 0.08);
            }
            .cs-navbar .nav-link {
                padding: 10px 16px !important;
                font-size: 0.95rem;
            }
            .category-hero .h1-category {
                font-size: 1.9rem;
            }
            .section {
                padding: 52px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .list-item-cs {
                flex-direction: column;
                gap: 14px;
            }
            .list-item-cs .list-img {
                width: 100%;
                height: 180px;
            }
            .cta-cs {
                padding: 40px 24px;
            }
            .cta-cs .cta-title {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 767.98px) {
            body {
                font-size: 15px;
                line-height: 1.75;
            }
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-desc {
                font-size: 0.9rem;
            }
            .category-hero {
                padding: 28px 0 32px;
            }
            .category-hero .h1-category {
                font-size: 1.55rem;
            }
            .category-hero .lead-category {
                font-size: 0.92rem;
            }
            .stat-card {
                padding: 18px 16px;
            }
            .stat-card .stat-number {
                font-size: 1.7rem;
            }
            .card-cs .card-body {
                padding: 18px 20px;
            }
            .card-cs .card-title {
                font-size: 1rem;
            }
            .list-item-cs {
                padding: 14px;
            }
            .list-item-cs .list-img {
                height: 150px;
            }
            .list-item-cs .list-title {
                font-size: 1.02rem;
            }
            .list-item-cs .list-desc {
                font-size: 0.87rem;
            }
            .faq-cs .accordion-button {
                padding: 16px 18px;
                font-size: 0.9rem;
            }
            .faq-cs .accordion-body {
                padding: 14px 18px 18px;
                font-size: 0.85rem;
            }
            .cta-cs .cta-title {
                font-size: 1.25rem;
            }
            .cta-cs .cta-desc {
                font-size: 0.9rem;
            }
            .btn-cs,
            .btn-cs-accent,
            .btn-cs-outline {
                padding: 10px 20px;
                font-size: 0.88rem;
                min-height: 44px;
            }
            .footer-cs {
                padding: 36px 0 20px;
            }
            .footer-cs .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .footer-cs .footer-meta {
                font-size: 0.75rem;
                gap: 4px 12px;
            }
        }

        @media (max-width: 575.98px) {
            .container-cs {
                padding-left: 14px;
                padding-right: 14px;
            }
            .section {
                padding: 38px 0;
            }
            .category-hero .h1-category {
                font-size: 1.35rem;
            }
            .list-item-cs .list-img {
                height: 130px;
            }
            .list-item-cs .list-tags .tag-date {
                margin-left: 0;
                width: 100%;
            }
            .stat-card {
                margin-bottom: 10px;
            }
            .tech-card {
                padding: 18px;
            }
        }

/* roulang page: category4 */
:root {
            --cs-primary: #1e3a36;
            --cs-primary-dark: #16302c;
            --cs-primary-light: #2a4f49;
            --cs-accent: #b3824e;
            --cs-accent-hover: #99703e;
            --cs-bg: #f6f3ef;
            --cs-bg-alt: #efece6;
            --cs-bg-soft: #faf9f6;
            --cs-text: #1e2b29;
            --cs-text-muted: #677571;
            --cs-border: #e2ddd4;
            --cs-flag: #e9e4db;
            --cs-radius: 16px;
            --cs-radius-sm: 10px;
            --cs-radius-lg: 22px;
            --cs-shadow: 0 4px 18px rgba(30, 42, 40, 0.06);
            --cs-shadow-hover: 0 14px 32px rgba(30, 42, 40, 0.12);
            --cs-transition: all 0.28s cubic-bezier(0.22, 0.61, 0.36, 1);
            --cs-font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Helvetica Neue', Arial, sans-serif;
        }

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

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

        body {
            font-family: var(--cs-font);
            background-color: var(--cs-bg);
            color: var(--cs-text);
            line-height: 1.85;
            font-size: 16px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--cs-accent);
            text-decoration: none;
            transition: var(--cs-transition);
        }

        a:hover {
            color: var(--cs-accent-hover);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--cs-accent);
            outline-offset: 3px;
        }

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

        .container-cs {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .section {
            padding: 88px 0;
            position: relative;
        }

        .section.bg-white {
            background-color: #ffffff;
        }

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

        .section.bg-soft {
            background-color: var(--cs-bg-soft);
        }

        .section.bg-dark {
            background-color: var(--cs-primary);
            color: #f0f2ef;
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--cs-accent);
            text-transform: uppercase;
            margin-bottom: 14px;
            border-left: 4px solid var(--cs-accent);
            padding-left: 12px;
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--cs-text);
            margin-bottom: 18px;
            letter-spacing: 0.01em;
        }

        .bg-dark .section-title {
            color: #ffffff;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--cs-text-muted);
            max-width: 720px;
            line-height: 1.95;
            margin-bottom: 0;
        }

        .bg-dark .section-desc {
            color: rgba(240, 242, 239, 0.8);
        }

        /* ============ 导航 ============ */
        .cs-navbar {
            background-color: rgba(30, 58, 54, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 12px 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: box-shadow 0.3s ease, padding 0.3s ease;
            min-height: 72px;
            display: flex;
            align-items: center;
        }

        .cs-navbar .navbar-brand {
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .cs-navbar .navbar-brand .brand-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--cs-accent);
            color: #fff;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 700;
            letter-spacing: 0;
            flex-shrink: 0;
        }

        .cs-navbar .nav-link {
            color: rgba(255, 255, 255, 0.82);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: var(--cs-transition);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .cs-navbar .nav-link:hover,
        .cs-navbar .nav-link:focus {
            color: #ffffff;
            background-color: rgba(255, 255, 255, 0.08);
        }

        .cs-navbar .nav-link.active {
            color: #ffffff;
            background-color: var(--cs-accent);
            font-weight: 600;
        }

        .cs-navbar .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            padding: 8px 12px;
            border-radius: 8px;
            background-color: transparent;
        }

        .cs-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(179, 130, 78, 0.4);
            outline: none;
        }

        .cs-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255,255,255,0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
            width: 1.5em;
            height: 1.5em;
        }

        /* ============ 面包屑 ============ */
        .breadcrumb-cs {
            padding: 16px 0;
            background-color: transparent;
            font-size: 0.88rem;
            color: var(--cs-text-muted);
            margin-bottom: 0;
        }

        .breadcrumb-cs .breadcrumb-item a {
            color: var(--cs-text-muted);
        }

        .breadcrumb-cs .breadcrumb-item a:hover {
            color: var(--cs-accent-hover);
        }

        .breadcrumb-cs .breadcrumb-item.active {
            color: var(--cs-text);
            font-weight: 500;
        }

        /* ============ 分类页头部 ============ */
        .category-header {
            padding: 48px 0 32px;
            background: linear-gradient(135deg, #f9f5ef 0%, #f1ece2 100%);
            border-bottom: 1px solid var(--cs-border);
        }

        .category-header h1 {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--cs-text);
            margin-bottom: 10px;
            line-height: 1.3;
        }

        .category-header .lead {
            font-size: 1.05rem;
            color: var(--cs-text-muted);
            max-width: 760px;
            line-height: 1.9;
        }

        /* ============ 卡片通用 ============ */
        .card-cs {
            background: #ffffff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius);
            box-shadow: var(--cs-shadow);
            transition: var(--cs-transition);
            height: 100%;
            overflow: hidden;
        }

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

        .card-cs .card-img-wrap {
            position: relative;
            overflow: hidden;
            height: 200px;
            border-radius: var(--cs-radius-sm) var(--cs-radius-sm) 0 0;
        }

        .card-cs .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .card-cs:hover .card-img-wrap img {
            transform: scale(1.03);
        }

        .card-cs .card-body {
            padding: 20px 22px;
        }

        .card-cs .card-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--cs-text);
        }

        .card-cs .card-text {
            color: var(--cs-text-muted);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 12px;
            font-size: 0.82rem;
            color: var(--cs-text-muted);
        }

        .badge-cs {
            background-color: var(--cs-flag);
            color: var(--cs-primary-dark);
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.76rem;
            letter-spacing: 0.03em;
            display: inline-block;
            border: 1px solid rgba(30, 58, 54, 0.1);
        }

        .badge-cs.accent {
            background-color: rgba(179, 130, 78, 0.12);
            color: var(--cs-accent);
            border-color: rgba(179, 130, 78, 0.2);
        }

        /* ============ 信息流列表 ============ */
        .info-flow {
            background: #ffffff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius);
            box-shadow: var(--cs-shadow);
            transition: var(--cs-transition);
            padding: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 20px;
            align-items: flex-start;
        }

        .info-flow:hover {
            box-shadow: var(--cs-shadow-hover);
            border-color: var(--cs-accent);
            transform: translateY(-3px);
        }

        .info-flow .flow-img {
            flex: 0 0 180px;
            max-width: 180px;
            height: 120px;
            border-radius: var(--cs-radius-sm);
            overflow: hidden;
            background-color: var(--cs-bg-alt);
        }

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

        .info-flow .flow-content {
            flex: 1;
            min-width: 220px;
        }

        .info-flow .flow-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--cs-text);
            margin-bottom: 8px;
        }

        .info-flow .flow-desc {
            color: var(--cs-text-muted);
            font-size: 0.95rem;
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .info-flow .flow-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--cs-text-muted);
        }

        .info-flow .flow-meta span i {
            color: var(--cs-accent);
            margin-right: 4px;
        }

        /* ============ 按钮 ============ */
        .btn-cs {
            background-color: var(--cs-accent);
            color: #ffffff;
            border: none;
            border-radius: 999px;
            padding: 10px 28px;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            transition: var(--cs-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            min-height: 44px;
        }

        .btn-cs:hover,
        .btn-cs:focus {
            background-color: var(--cs-accent-hover);
            color: #fff;
            box-shadow: 0 6px 18px rgba(179, 130, 78, 0.35);
            transform: translateY(-2px);
        }

        .btn-outline-cs {
            background-color: transparent;
            color: var(--cs-primary);
            border: 1px solid var(--cs-primary);
            border-radius: 999px;
            padding: 10px 28px;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            transition: var(--cs-transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            min-height: 44px;
        }

        .btn-outline-cs:hover,
        .btn-outline-cs:focus {
            background-color: var(--cs-primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(30, 58, 54, 0.25);
            transform: translateY(-2px);
        }

        .btn-cs i,
        .btn-outline-cs i {
            font-size: 0.9em;
        }

        /* ============ 步骤条 ============ */
        .steps-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 30px;
        }

        .step-item {
            flex: 1 1 200px;
            background: #ffffff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius);
            padding: 22px;
            box-shadow: var(--cs-shadow);
            transition: var(--cs-transition);
        }

        .step-item:hover {
            box-shadow: var(--cs-shadow-hover);
            border-color: var(--cs-accent);
        }

        .step-num {
            display: inline-block;
            width: 36px;
            height: 36px;
            background-color: var(--cs-primary);
            color: #fff;
            border-radius: 50%;
            text-align: center;
            line-height: 36px;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 12px;
        }

        .step-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--cs-text);
            margin-bottom: 8px;
        }

        .step-item p {
            color: var(--cs-text-muted);
            font-size: 0.92rem;
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* ============ 保障要点 ============ */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
            margin-top: 20px;
        }

        .guarantee-item {
            background: #ffffff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius-sm);
            padding: 18px 16px;
            text-align: center;
            box-shadow: var(--cs-shadow);
            transition: var(--cs-transition);
        }

        .guarantee-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--cs-shadow-hover);
        }

        .guarantee-item .ico {
            font-size: 1.8rem;
            color: var(--cs-accent);
            margin-bottom: 6px;
            display: block;
        }

        .guarantee-item .num {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--cs-primary-dark);
            line-height: 1.3;
        }

        .guarantee-item .lbl {
            font-size: 0.88rem;
            color: var(--cs-text-muted);
        }

        /* ============ 注意事项 ============ */
        .notice-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .notice-list li {
            background: #fff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius-sm);
            padding: 16px 18px;
            margin-bottom: 12px;
            display: flex;
            gap: 12px;
            align-items: flex-start;
            box-shadow: var(--cs-shadow);
            transition: var(--cs-transition);
        }

        .notice-list li:hover {
            border-color: var(--cs-accent);
            box-shadow: var(--cs-shadow-hover);
        }

        .notice-list li i {
            color: var(--cs-accent);
            font-size: 1.1rem;
            margin-top: 4px;
            flex-shrink: 0;
        }

        .notice-list li span {
            color: var(--cs-text);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ============ FAQ ============ */
        .faq-list .accordion-item {
            border: none;
            border-bottom: 1px solid var(--cs-border);
            background: transparent;
            border-radius: 0;
            margin-bottom: 0;
        }

        .faq-list .accordion-button {
            background: transparent;
            color: var(--cs-text);
            font-weight: 600;
            font-size: 1.05rem;
            padding: 20px 0;
            box-shadow: none;
            border: none;
            border-radius: 0;
            transition: var(--cs-transition);
        }

        .faq-list .accordion-button:not(.collapsed) {
            color: var(--cs-accent);
            background: transparent;
            box-shadow: none;
        }

        .faq-list .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
            outline: 2px solid var(--cs-accent);
            outline-offset: -2px;
        }

        .faq-list .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231e3a36'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
            transition: transform 0.2s ease-in-out;
        }

        .faq-list .accordion-button:not(.collapsed)::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23b3824e'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
        }

        .faq-list .accordion-body {
            padding: 0 0 20px;
            color: var(--cs-text-muted);
            line-height: 1.9;
            font-size: 0.98rem;
        }

        /* ============ 表单 ============ */
        .form-cs .form-control,
        .form-cs .form-select {
            border-radius: var(--cs-radius-sm);
            border: 1px solid var(--cs-border);
            padding: 12px 16px;
            font-size: 0.95rem;
            transition: var(--cs-transition);
            min-height: 46px;
            background-color: #fff;
            color: var(--cs-text);
        }

        .form-cs .form-control:focus,
        .form-cs .form-select:focus {
            border-color: var(--cs-accent);
            box-shadow: 0 0 0 3px rgba(179, 130, 78, 0.18);
            outline: none;
        }

        .form-cs textarea.form-control {
            min-height: 110px;
            resize: vertical;
        }

        .form-cs .form-label {
            font-weight: 600;
            color: var(--cs-text);
            margin-bottom: 6px;
            font-size: 0.92rem;
        }

        .form-cs .form-text {
            color: var(--cs-text-muted);
            font-size: 0.82rem;
        }

        .form-card {
            background: #ffffff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius);
            box-shadow: var(--cs-shadow);
            padding: 30px;
        }

        /* ============ 文章列表 ============ */
        .article-list .article-item {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            background: #ffffff;
            border: 1px solid var(--cs-border);
            border-radius: var(--cs-radius-sm);
            padding: 14px 18px;
            margin-bottom: 14px;
            box-shadow: var(--cs-shadow);
            transition: var(--cs-transition);
        }

        .article-list .article-item:hover {
            border-color: var(--cs-accent);
            box-shadow: var(--cs-shadow-hover);
        }

        .article-list .article-item .article-icon {
            flex: 0 0 auto;
            width: 42px;
            height: 42px;
            background-color: var(--cs-flag);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--cs-primary);
            font-size: 1.2rem;
        }

        .article-list .article-item .article-info {
            flex: 1;
            min-width: 200px;
        }

        .article-list .article-item .article-info a {
            color: var(--cs-text);
            font-weight: 600;
            font-size: 1rem;
            display: inline-block;
            margin-bottom: 4px;
        }

        .article-list .article-item .article-info a:hover {
            color: var(--cs-accent-hover);
        }

        .article-list .article-item .article-info p {
            font-size: 0.85rem;
            color: var(--cs-text-muted);
            margin: 0;
        }

        /* ============ 页脚 ============ */
        .footer-cs {
            background-color: var(--cs-primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 32px;
            margin-top: 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-cs .footer-brand {
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.02em;
        }

        .footer-cs .footer-text {
            font-size: 0.92rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 12px;
            max-width: 480px;
        }

        .footer-cs .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
        }

        .footer-cs .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.92rem;
            transition: var(--cs-transition);
        }

        .footer-cs .footer-links a:hover {
            color: #fff;
        }

        .footer-cs .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin: 24px 0;
        }

        .footer-cs .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 16px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-cs .footer-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

        .footer-cs .footer-meta span,
        .footer-cs .footer-meta a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.88rem;
        }

        .footer-cs .footer-meta a:hover {
            color: rgba(255, 255, 255, 0.85);
        }

        /* ============ 响应式 ============ */
        @media (max-width: 992px) {
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .info-flow {
                flex-direction: column;
            }
            .info-flow .flow-img {
                flex: 0 0 auto;
                max-width: 100%;
                width: 100%;
                height: 180px;
            }
        }

        @media (max-width: 768px) {
            .cs-navbar .navbar-nav {
                padding-top: 12px;
            }
            .cs-navbar .nav-link {
                padding: 10px 12px !important;
                font-size: 0.9rem;
            }
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-desc {
                font-size: 0.95rem;
            }
            .category-header h1 {
                font-size: 1.8rem;
            }
            .steps-wrap {
                flex-direction: column;
            }
            .footer-cs .footer-bottom {
                flex-direction: column;
                gap: 12px;
            }
            .footer-cs .footer-links {
                gap: 14px;
            }
            .form-card {
                padding: 22px;
            }
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
            .info-flow .flow-img {
                height: 160px;
            }
        }

        @media (max-width: 576px) {
            .container-cs {
                padding-left: 16px;
                padding-right: 16px;
            }
            .category-header {
                padding: 30px 0 20px;
            }
            .btn-cs,
            .btn-outline-cs {
                width: 100%;
                justify-content: center;
            }
            .breadcrumb-cs {
                font-size: 0.82rem;
            }
        }

/* roulang page: category5 */
:root {
      --cs-primary: #1e3a36;
      --cs-primary-dark: #16302c;
      --cs-primary-light: #2a4f49;
      --cs-accent: #b3824e;
      --cs-accent-hover: #99703e;
      --cs-bg: #f6f3ef;
      --cs-bg-alt: #efece6;
      --cs-bg-soft: #faf9f6;
      --cs-text: #1e2b29;
      --cs-text-muted: #677571;
      --cs-border: #e2ddd4;
      --cs-flag: #e9e4db;
      --cs-radius: 16px;
      --cs-radius-sm: 10px;
      --cs-radius-lg: 22px;
      --cs-shadow: 0 4px 18px rgba(30, 42, 40, 0.06);
      --cs-shadow-hover: 0 14px 32px rgba(30, 42, 40, 0.12);
      --cs-transition: all 0.28s cubic-bezier(0.22, 0.61, 0.36, 1);
      --cs-font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Helvetica Neue', Arial, sans-serif;
    }
    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }
    body {
      font-family: var(--cs-font);
      background-color: var(--cs-bg);
      color: var(--cs-text);
      line-height: 1.85;
      font-size: 16px;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    a {
      color: var(--cs-accent);
      text-decoration: none;
      transition: var(--cs-transition);
    }
    a:hover {
      color: var(--cs-accent-hover);
      text-decoration: none;
    }
    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    textarea:focus-visible,
    select:focus-visible {
      outline: 2px solid var(--cs-accent);
      outline-offset: 3px;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container-cs {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }
    .section {
      padding: 72px 0;
      position: relative;
    }
    .section.bg-white {
      background-color: #ffffff;
    }
    .section.bg-alt {
      background-color: var(--cs-bg-alt);
    }
    .section.bg-soft {
      background-color: var(--cs-bg-soft);
    }
    .section.bg-dark {
      background-color: var(--cs-primary);
      color: #f0f2ef;
    }
    .section-label {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 600;
      letter-spacing: 0.08em;
      color: var(--cs-accent);
      text-transform: uppercase;
      margin-bottom: 14px;
      border-left: 4px solid var(--cs-accent);
      padding-left: 12px;
    }
    .section-title {
      font-size: 2rem;
      font-weight: 700;
      line-height: 1.3;
      color: var(--cs-text);
      margin-bottom: 18px;
      letter-spacing: 0.01em;
    }
    .bg-dark .section-title {
      color: #ffffff;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--cs-text-muted);
      max-width: 720px;
      line-height: 1.95;
      margin-bottom: 0;
    }
    .bg-dark .section-desc {
      color: rgba(240, 242, 239, 0.8);
    }
    @media (max-width: 768px) {
      .section {
        padding: 52px 0;
      }
      .section-title {
        font-size: 1.6rem;
        margin-bottom: 12px;
      }
      .section-desc {
        font-size: 0.95rem;
        line-height: 1.8;
      }
    }
    @media (max-width: 520px) {
      .section {
        padding: 40px 0;
      }
      .section-title {
        font-size: 1.4rem;
      }
      .section-desc {
        font-size: 0.88rem;
      }
    }
    /* ============ 导航 ============ */
    .cs-navbar {
      background-color: rgba(30, 58, 54, 0.97);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      padding: 12px 0;
      position: sticky;
      top: 0;
      z-index: 1050;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      transition: box-shadow 0.3s ease, padding 0.3s ease;
      min-height: 72px;
      display: flex;
      align-items: center;
    }
    .cs-navbar .navbar-brand {
      font-size: 1.35rem;
      font-weight: 700;
      color: #fff;
      letter-spacing: 0.02em;
      display: flex;
      align-items: center;
      gap: 8px;
      white-space: nowrap;
    }
    .cs-navbar .navbar-brand .brand-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--cs-accent);
      color: #fff;
      width: 36px;
      height: 36px;
      border-radius: 10px;
      font-size: 0.95rem;
      font-weight: 700;
      letter-spacing: 0;
      flex-shrink: 0;
    }
    .cs-navbar .nav-link {
      color: rgba(255, 255, 255, 0.82);
      font-size: 0.92rem;
      font-weight: 500;
      padding: 8px 16px !important;
      border-radius: 8px;
      transition: var(--cs-transition);
      letter-spacing: 0.02em;
      white-space: nowrap;
    }
    .cs-navbar .nav-link:hover,
    .cs-navbar .nav-link:focus {
      color: #ffffff;
      background-color: rgba(255, 255, 255, 0.08);
    }
    .cs-navbar .nav-link.active {
      color: #ffffff;
      background-color: var(--cs-accent);
      font-weight: 600;
    }
    .cs-navbar .navbar-toggler {
      border: 1px solid rgba(255, 255, 255, 0.3);
      color: #fff;
      padding: 8px 12px;
      border-radius: 8px;
    }
    .cs-navbar .navbar-toggler:focus {
      box-shadow: 0 0 0 3px rgba(179, 130, 78, 0.4);
      outline: none;
    }
    .cs-navbar .navbar-toggler-icon {
      background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }
    /* ============ 面包屑 ============ */
    .breadcrumb-cs {
      background: transparent;
      padding: 16px 0 0;
      margin: 0;
      font-size: 0.9rem;
      color: var(--cs-text-muted);
    }
    .breadcrumb-cs a {
      color: var(--cs-accent);
    }
    .breadcrumb-cs a:hover {
      color: var(--cs-accent-hover);
    }
    /* ============ 分类页 H1 ============ */
    .page-header {
      background: var(--cs-bg-alt);
      padding: 30px 0 48px;
      border-bottom: 1px solid var(--cs-border);
      margin-bottom: 0;
    }
    .page-header h1 {
      font-size: 2.2rem;
      font-weight: 700;
      margin: 0 0 12px;
      color: var(--cs-text);
    }
    .page-header .page-desc {
      font-size: 1.05rem;
      color: var(--cs-text-muted);
      max-width: 820px;
      line-height: 1.85;
      margin: 0;
    }
    /* ============ 列表 / 卡片主体 ============ */
    .filter-bar {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      margin-bottom: 32px;
    }
    .filter-group {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .btn-filter {
      background-color: #fff;
      border: 1px solid var(--cs-border);
      color: var(--cs-text);
      padding: 10px 18px;
      border-radius: 999px;
      font-size: 0.9rem;
      font-weight: 500;
      transition: var(--cs-transition);
    }
    .btn-filter:hover,
    .btn-filter.active {
      background-color: var(--cs-primary);
      color: #fff;
      border-color: var(--cs-primary);
    }
    .btn-filter.active {
      background-color: var(--cs-accent);
      border-color: var(--cs-accent);
    }
    .form-select-cs {
      min-width: 160px;
      background-color: #fff;
      border: 1px solid var(--cs-border);
      border-radius: 10px;
      padding: 10px 14px;
      font-size: 0.9rem;
      color: var(--cs-text);
    }
    .entry-list .list-card {
      display: flex;
      flex-wrap: wrap;
      background: #fff;
      border: 1px solid var(--cs-border);
      border-radius: var(--cs-radius);
      overflow: hidden;
      box-shadow: var(--cs-shadow);
      transition: var(--cs-transition);
      margin-bottom: 20px;
    }
    .entry-list .list-card:hover {
      box-shadow: var(--cs-shadow-hover);
      transform: translateY(-4px);
    }
    .entry-list .list-img {
      flex: 0 0 280px;
      max-width: 280px;
      min-height: 100%;
      background-color: var(--cs-bg-alt);
    }
    .entry-list .list-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      min-height: 200px;
    }
    .entry-list .list-body {
      flex: 1;
      padding: 22px 24px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .entry-list .list-tag-group {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 4px;
    }
    .entry-list .list-tag {
      background: var(--cs-bg-alt);
      color: var(--cs-text-muted);
      font-size: 0.78rem;
      padding: 4px 10px;
      border-radius: 999px;
      font-weight: 500;
    }
    .entry-list .list-date {
      font-size: 0.8rem;
      color: var(--cs-text-muted);
    }
    .entry-list .list-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--cs-text);
      margin: 4px 0 6px;
      line-height: 1.45;
    }
    .entry-list .list-text {
      font-size: 0.95rem;
      color: var(--cs-text-muted);
      line-height: 1.75;
      margin: 0;
    }
    .entry-list .list-link {
      align-self: flex-start;
      color: var(--cs-accent);
      font-weight: 600;
      font-size: 0.9rem;
      padding: 6px 0;
    }
    /* ============ 数据摘要卡片 ============ */
    .data-summary-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .data-summary-card {
      background: #fff;
      border: 1px solid var(--cs-border);
      border-radius: var(--cs-radius);
      padding: 24px 20px;
      text-align: center;
      box-shadow: var(--cs-shadow);
      transition: var(--cs-transition);
    }
    .data-summary-card:hover {
      box-shadow: var(--cs-shadow-hover);
      transform: translateY(-4px);
    }
    .data-summary-card .data-value {
      font-size: 2rem;
      font-weight: 700;
      color: var(--cs-primary);
      line-height: 1.2;
      margin-bottom: 6px;
    }
    .data-summary-card .data-label {
      font-size: 0.9rem;
      color: var(--cs-text-muted);
      font-weight: 500;
    }
    /* ============ 提示框 / 规则列表 ============ */
    .notice-card {
      background: var(--cs-bg-soft);
      border: 1px solid var(--cs-border);
      border-radius: var(--cs-radius);
      padding: 28px;
    }
    .notice-card .notice-title {
      font-size: 1.3rem;
      font-weight: 700;
      margin-bottom: 18px;
      color: var(--cs-text);
    }
    .notice-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .notice-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      padding: 12px 0;
      border-bottom: 1px dashed var(--cs-border);
      color: var(--cs-text-muted);
      line-height: 1.75;
    }
    .notice-list li:last-child {
      border-bottom: 0;
    }
    .notice-list li i {
      color: var(--cs-accent);
      margin-top: 4px;
      flex-shrink: 0;
    }
    /* ============ 专题 / 场景入口 ============ */
    .topic-card {
      background: #fff;
      border: 1px solid var(--cs-border);
      border-radius: var(--cs-radius);
      overflow: hidden;
      box-shadow: var(--cs-shadow);
      transition: var(--cs-transition);
      height: 100%;
    }
    .topic-card:hover {
      box-shadow: var(--cs-shadow-hover);
      transform: translateY(-4px);
    }
    .topic-card .topic-img {
      height: 150px;
      overflow: hidden;
      background: var(--cs-bg-alt);
    }
    .topic-card .topic-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .topic-card .topic-body {
      padding: 18px 20px;
    }
    .topic-card .topic-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--cs-text);
      margin-bottom: 8px;
    }
    .topic-card .topic-text {
      font-size: 0.9rem;
      color: var(--cs-text-muted);
      line-height: 1.7;
      margin: 0;
    }
    /* ============ 订阅 CTA ============ */
    .cta-box {
      background: var(--cs-primary);
      border-radius: var(--cs-radius-lg);
      padding: 42px 38px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      color: #f0f2ef;
    }
    .cta-box .cta-title {
      font-size: 1.7rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: #fff;
    }
    .cta-box .cta-desc {
      font-size: 1rem;
      color: rgba(240, 242, 239, 0.85);
      margin: 0;
      max-width: 520px;
      line-height: 1.8;
    }
    .cta-form {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      min-width: 280px;
      flex: 1;
      max-width: 440px;
    }
    .cta-form input {
      flex: 1 1 200px;
      border: 1px solid rgba(255,255,255,0.25);
      background: rgba(255,255,255,0.1);
      border-radius: 999px;
      padding: 12px 18px;
      color: #fff;
      font-size: 0.95rem;
      transition: var(--cs-transition);
    }
    .cta-form input::placeholder {
      color: rgba(255,255,255,0.6);
    }
    .cta-form input:focus {
      outline: none;
      background: rgba(255,255,255,0.2);
      border-color: var(--cs-accent);
    }
    .btn-cs {
      background-color: var(--cs-accent);
      color: #fff;
      border: none;
      padding: 12px 24px;
      border-radius: 999px;
      font-weight: 600;
      font-size: 0.95rem;
      transition: var(--cs-transition);
      letter-spacing: 0.02em;
      white-space: nowrap;
    }
    .btn-cs:hover,
    .btn-cs:focus {
      background-color: var(--cs-accent-hover);
      color: #fff;
      outline: none;
      box-shadow: inset 0 2px 6px rgba(0,0,0,0.2);
    }
    /* ============ 页脚 ============ */
    .footer-cs {
      background-color: var(--cs-primary-dark);
      color: rgba(240, 242, 239, 0.8);
      padding: 48px 0 28px;
      font-size: 0.9rem;
      margin-top: 0;
    }
    .footer-cs .footer-brand {
      font-size: 1.4rem;
      font-weight: 700;
      color: #fff;
      display: block;
      margin-bottom: 10px;
    }
    .footer-cs .footer-text {
      max-width: 420px;
      line-height: 1.8;
      color: rgba(240, 242, 239, 0.7);
      margin: 0;
    }
    .footer-cs .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
    }
    .footer-cs .footer-links a {
      color: rgba(240, 242, 239, 0.75);
      font-size: 0.9rem;
    }
    .footer-cs .footer-links a:hover {
      color: #fff;
    }
    .footer-cs .footer-divider {
      border-top: 1px solid rgba(255,255,255,0.1);
      margin: 28px 0 18px;
    }
    .footer-cs .footer-bottom {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }
    .footer-cs .footer-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
      font-size: 0.78rem;
      color: rgba(240, 242, 239, 0.6);
    }
    .footer-cs .footer-meta a {
      color: rgba(240, 242, 239, 0.6);
    }
    .footer-cs .footer-meta a:hover {
      color: #fff;
    }
    /* ============ 响应式微调 ============ */
    @media (max-width: 992px) {
      .entry-list .list-img {
        flex: 0 0 220px;
        max-width: 220px;
      }
      .data-summary-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .entry-list .list-card {
        flex-direction: column;
      }
      .entry-list .list-img {
        flex: 0 0 auto;
        max-width: 100%;
        height: 200px;
      }
      .entry-list .list-body {
        padding: 18px 18px;
      }
      .cta-box {
        flex-direction: column;
        align-items: flex-start;
      }
      .cta-form {
        max-width: 100%;
        width: 100%;
      }
    }
    @media (max-width: 520px) {
      .data-summary-grid {
        grid-template-columns: 1fr;
      }
      .filter-bar {
        flex-direction: column;
        align-items: flex-start;
      }
      .btn-filter {
        padding: 8px 14px;
        font-size: 0.85rem;
      }
      .cta-box {
        padding: 28px 22px;
      }
      .cta-title {
        font-size: 1.4rem;
      }
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}