/* roulang page: index */
:root {
            --primary: #0F3D2E;
            --primary-dark: #0A2B20;
            --secondary: #1B5E48;
            --accent: #D4F44A;
            --danger: #FF5A3C;
            --bg: #F6F5F0;
            --card: #FFFFFF;
            --ink: #1A1D1A;
            --muted: #5A645C;
            --border: #E5E4DC;
            --blue-gray: #647D74;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-pill: 999px;
            --shadow-sm: 0 1px 3px rgba(15, 61, 46, 0.06);
            --shadow-md: 0 10px 24px rgba(15, 61, 46, 0.12);
            --transition: 200ms cubic-bezier(0.2, 0.7, 0.3, 1);
            --container: 1200px;
            --space-section: 96px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
            font-size: 16px;
            font-weight: 400;
            line-height: 1.75;
            color: var(--ink);
            background-color: var(--bg);
            min-height: 100vh;
        }

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

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

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

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

        button {
            cursor: pointer;
        }

        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ---- 顶部信息条 ---- */
        .topbar {
            background-color: var(--primary-dark);
            color: #E8F0EC;
            font-size: 12px;
            font-weight: 500;
            height: 36px;
            display: flex;
            align-items: center;
            position: relative;
            z-index: 1001;
        }

        .topbar__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        .topbar__left {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .topbar__domain {
            color: var(--accent);
            font-weight: 600;
            letter-spacing: 0.3px;
        }

        .topbar__update {
            color: #B7C9C2;
        }

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

        .topbar__link {
            color: #E8F0EC;
            font-weight: 500;
            transition: color var(--transition);
        }

        .topbar__link:hover {
            color: var(--accent);
        }

        /* ---- 主导航 ---- */
        .site-header {
            background-color: var(--card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: 68px;
            display: flex;
            align-items: center;
            box-shadow: var(--shadow-sm);
        }

        .site-header__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
            gap: 24px;
        }

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

        .brand__mark {
            width: 38px;
            height: 38px;
            background-color: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-weight: 800;
            font-size: 18px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .brand__text {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            margin: 0 auto;
        }

        .main-nav__link {
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            position: relative;
            padding: 6px 0;
            white-space: nowrap;
            transition: color var(--transition);
        }

        .main-nav__link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: width var(--transition);
        }

        .main-nav__link:hover::after,
        .main-nav__link.active::after {
            width: 100%;
        }

        .main-nav__link:hover {
            color: var(--primary);
        }

        .main-nav__link.active {
            color: var(--primary);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            background-color: var(--primary);
            color: var(--accent);
            font-size: 14px;
            font-weight: 700;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            transition: background-color var(--transition), box-shadow var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .header-cta:hover {
            background-color: var(--secondary);
            box-shadow: var(--shadow-md);
            color: var(--accent);
        }

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

        .nav-toggle span {
            width: 24px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* ---- Hero ---- */
        .hero {
            position: relative;
            min-height: 78vh;
            display: flex;
            align-items: center;
            background-image: linear-gradient(rgba(15, 61, 46, 0.9), rgba(15, 61, 46, 0.25)), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            color: #fff;
            overflow: hidden;
        }

        .hero__inner {
            position: relative;
            z-index: 2;
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 80px 24px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero__content {
            max-width: 620px;
        }

        .hero__tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background-color: rgba(212, 244, 74, 0.15);
            border: 1px solid rgba(212, 244, 74, 0.3);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            margin-bottom: 24px;
        }

        .hero__title {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.1;
            letter-spacing: -1px;
            margin-bottom: 20px;
        }

        .hero__subtitle {
            font-size: 18px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 32px;
            max-width: 540px;
        }

        .hero__cta-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 700;
            padding: 14px 28px;
            border-radius: var(--radius-pill);
            transition: background-color var(--transition), color var(--transition), box-shadow var(--transition), border-color var(--transition);
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--accent);
            color: var(--primary-dark);
        }

        .btn-primary:hover {
            background-color: #c2e83a;
            box-shadow: var(--shadow-md);
            color: var(--primary-dark);
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: #fff;
        }

        .btn-outline-light:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        .hero__data-strip {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            max-width: 540px;
        }

        .hero__data-item {
            background-color: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-sm);
            padding: 14px 16px;
            backdrop-filter: blur(4px);
        }

        .hero__data-label {
            font-size: 11px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.7);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }

        .hero__data-value {
            font-family: 'Roboto', 'DIN', 'Inter', sans-serif;
            font-size: 26px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
        }

        .hero__side-panel {
            background-color: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-md);
            padding: 32px;
            backdrop-filter: blur(8px);
        }

        .hero__panel-title {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .hero__panel-title::after {
            content: '';
            flex: 1;
            height: 1px;
            background-color: rgba(255, 255, 255, 0.2);
        }

        .hero__match-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .hero__match-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 16px;
            background-color: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-sm);
            font-size: 14px;
            color: rgba(255, 255, 255, 0.9);
        }

        .hero__match-teams {
            font-weight: 600;
            color: #fff;
        }

        .hero__match-index {
            font-family: 'Roboto', sans-serif;
            font-weight: 700;
            color: var(--accent);
        }

        /* ---- 通用区块样式 ---- */
        .section {
            padding: var(--space-section) 0;
        }

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

        .section--light {
            background-color: var(--card);
        }

        .section__header {
            margin-bottom: 48px;
            max-width: 720px;
        }

        .section__tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            background-color: rgba(212, 244, 74, 0.12);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .section--light .section__tag {
            background-color: rgba(15, 61, 46, 0.08);
            color: var(--primary);
        }

        .section__title {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .section__desc {
            font-size: 16px;
            line-height: 1.8;
            color: var(--muted);
            max-width: 640px;
        }

        .section--dark .section__desc {
            color: #B7C9C2;
        }

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

        .metric-card {
            background-color: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
        }

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

        .metric-card__label {
            font-size: 13px;
            font-weight: 600;
            color: var(--muted);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        .metric-card__value {
            font-family: 'Roboto', 'DIN', 'Inter', sans-serif;
            font-size: 38px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 10px;
        }

        .metric-card__change {
            font-size: 13px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .metric-card__change--up {
            color: var(--secondary);
        }

        .metric-card__change--down {
            color: var(--danger);
        }

        .metric-card__source {
            font-size: 11px;
            color: var(--blue-gray);
            margin-top: 12px;
            display: block;
        }

        /* ---- 深度内容区 ---- */
        .deep-content {
            display: grid;
            grid-template-columns: 0.8fr 1.2fr;
            gap: 48px;
            align-items: start;
        }

        .deep-content__sticky {
            position: sticky;
            top: 100px;
        }

        .deep-content__title {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }

        .deep-content__meta {
            font-size: 13px;
            color: var(--blue-gray);
            font-weight: 500;
            margin-bottom: 20px;
        }

        .deep-content__figure {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 24px;
            border: 1px solid var(--border);
        }

        .deep-content__figure img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }

        .deep-content__caption {
            font-size: 12px;
            color: var(--blue-gray);
            padding: 10px 16px;
            background-color: var(--card);
            border-top: 1px solid var(--border);
        }

        .deep-content__body {
            font-size: 15.5px;
            line-height: 1.85;
            color: #333;
        }

        .deep-content__body p {
            margin-bottom: 20px;
        }

        .deep-content__body h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary);
            margin: 28px 0 12px;
        }

        .deep-content__body ul {
            padding-left: 24px;
            margin-bottom: 20px;
        }

        .deep-content__body li {
            margin-bottom: 8px;
        }

        .deep-content__note {
            background-color: #F0F5F1;
            border-left: 3px solid var(--primary);
            padding: 16px 20px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-size: 14px;
            color: #444;
            margin-bottom: 20px;
        }

        /* ---- 服务矩阵 ---- */
        .service-matrix {
            display: grid;
            grid-template-columns: 0.7fr 1.3fr;
            gap: 32px;
        }

        .service-index {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .service-index__item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 20px;
            background-color: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: border-color var(--transition), background-color var(--transition);
        }

        .service-index__item:hover {
            border-color: var(--primary);
            background-color: #F0F5F1;
        }

        .service-index__num {
            font-family: 'Roboto', sans-serif;
            font-weight: 800;
            font-size: 18px;
            color: var(--primary);
            width: 32px;
            text-align: center;
            flex-shrink: 0;
        }

        .service-detail {
            background-color: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 32px;
            display: grid;
            grid-template-columns: 1fr 0.8fr;
            gap: 28px;
        }

        .service-detail__info h4 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .service-detail__info p {
            font-size: 14.5px;
            line-height: 1.8;
            color: #444;
            margin-bottom: 16px;
        }

        .btn-text {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            transition: color var(--transition);
        }

        .btn-text:hover {
            color: var(--secondary);
        }

        .service-detail__img {
            border-radius: var(--radius-sm);
            overflow: hidden;
            border: 1px solid var(--border);
        }

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

        /* ---- 步骤列表 ---- */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .step-card {
            background-color: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }

        .step-card__num {
            font-family: 'Roboto', sans-serif;
            font-size: 40px;
            font-weight: 800;
            color: var(--accent);
            background-color: var(--primary);
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            line-height: 1;
        }

        .step-card__content h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--primary);
        }

        .step-card__content p {
            font-size: 14px;
            line-height: 1.7;
            color: #555;
        }

        /* ---- 结果对比 ---- */
        .compare-table {
            background-color: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
        }

        .compare-table__row {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            border-bottom: 1px solid var(--border);
        }

        .compare-table__row:last-child {
            border-bottom: none;
        }

        .compare-table__row--header {
            background-color: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
        }

        .compare-table__cell {
            padding: 16px 24px;
            font-size: 14.5px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .compare-table__row--header .compare-table__cell {
            font-size: 16px;
        }

        .compare-table__row--header .compare-table__cell:first-child {
            color: var(--accent);
        }

        .compare-table__row:not(.compare-table__row--header):hover {
            background-color: #F0F5F1;
        }

        .compare-check {
            color: var(--secondary);
            font-weight: 700;
        }

        .compare-x {
            color: var(--danger);
            font-weight: 700;
        }

        .compare-dot {
            color: var(--blue-gray);
        }

        /* ---- 新闻中心 ---- */
        .news-timeline {
            display: flex;
            flex-direction: column;
            gap: 0;
            border-left: 2px solid var(--border);
            padding-left: 0;
        }

        .news-item {
            display: grid;
            grid-template-columns: 140px 1fr auto;
            gap: 24px;
            padding: 20px 24px;
            background-color: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            margin-left: -2px;
            position: relative;
            transition: box-shadow var(--transition), border-color var(--transition);
        }

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

        .news-item::before {
            content: '';
            position: absolute;
            left: -8px;
            top: 28px;
            width: 14px;
            height: 14px;
            background-color: var(--accent);
            border-radius: 50%;
            border: 3px solid var(--primary);
        }

        .news-item__date {
            font-family: 'Roboto', sans-serif;
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            padding-top: 4px;
        }

        .news-item__content h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .news-item__content p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .news-item__btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
        }

        .news-item__btn:hover {
            color: var(--secondary);
        }

        /* ---- 品牌介绍 ---- */
        .brand-intro {
            background-color: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 36px 40px;
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 32px;
            align-items: center;
        }

        .brand-intro__left h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .brand-intro__left p {
            font-size: 15px;
            line-height: 1.8;
            color: #444;
        }

        .brand-intro__right {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .brand-intro__tag {
            background-color: #F0F5F1;
            border: 1px solid var(--border);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
        }

        /* ---- FAQ ---- */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background-color: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: border-color var(--transition);
        }

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

        .faq-item__question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 700;
            color: var(--ink);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition);
        }

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

        .faq-item__icon {
            font-size: 22px;
            font-weight: 300;
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item.active .faq-item__icon {
            transform: rotate(45deg);
        }

        .faq-item__answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
        }

        .faq-item.active .faq-item__answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        .faq-item__answer p {
            font-size: 14.5px;
            line-height: 1.8;
            color: #555;
        }

        /* ---- 转化表单 ---- */
        .cta-section {
            background-color: var(--primary-dark);
            color: #fff;
            padding: 80px 0;
        }

        .cta-card {
            background-color: var(--card);
            border-radius: var(--radius-md);
            padding: 40px;
            max-width: 560px;
            margin: 0 auto;
            color: var(--ink);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
        }

        .cta-card__title {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .cta-card__desc {
            font-size: 14.5px;
            color: var(--muted);
            margin-bottom: 24px;
            line-height: 1.7;
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            height: 48px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0 16px;
            font-size: 15px;
            color: var(--ink);
            background-color: #FAFAF8;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(15, 61, 46, 0.15);
            outline: none;
        }

        .btn-submit {
            width: 100%;
            height: 52px;
            background-color: var(--primary);
            color: var(--accent);
            font-size: 16px;
            font-weight: 800;
            border-radius: var(--radius-sm);
            transition: background-color var(--transition), box-shadow var(--transition);
            letter-spacing: 1px;
        }

        .btn-submit:hover {
            background-color: var(--secondary);
            box-shadow: var(--shadow-md);
        }

        .cta-card__footnote {
            font-size: 12px;
            color: var(--blue-gray);
            text-align: center;
            margin-top: 16px;
            line-height: 1.7;
        }

        /* ---- Footer ---- */
        .site-footer {
            background-color: var(--primary-dark);
            color: #E8F0EC;
            padding: 60px 0 0;
        }

        .site-footer__grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 0.8fr 0.8fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .site-footer__brand h3 {
            font-size: 22px;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .site-footer__brand p {
            font-size: 13.5px;
            line-height: 1.8;
            color: #B7C9C2;
        }

        .site-footer__col h4 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .site-footer__col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .site-footer__col a {
            font-size: 13.5px;
            color: #B7C9C2;
            transition: color var(--transition);
        }

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

        .site-footer__bottom {
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 12.5px;
            color: #8DA398;
        }

        .site-footer__bottom a {
            color: #8DA398;
            transition: color var(--transition);
        }

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

        .site-footer__sep {
            color: rgba(255, 255, 255, 0.2);
        }

        /* ---- 动画 ---- */
        .fade-up {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ---- 响应式 ---- */
        @media (max-width: 1024px) {
            .hero__inner {
                grid-template-columns: 1fr;
                gap: 32px;
                padding: 60px 24px;
            }

            .hero__side-panel {
                max-width: 520px;
            }

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

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

            .deep-content__sticky {
                position: relative;
                top: auto;
            }

            .service-matrix {
                grid-template-columns: 1fr;
            }

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

            .brand-intro {
                grid-template-columns: 1fr;
                padding: 28px;
            }

            .site-footer__grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }

            .main-nav {
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space-section: 56px;
            }

            .topbar__right {
                gap: 12px;
            }

            .topbar__update {
                display: none;
            }

            .site-header {
                height: 60px;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background-color: var(--card);
                flex-direction: column;
                padding: 24px;
                gap: 16px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                z-index: 999;
            }

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

            .main-nav__link {
                font-size: 18px;
                padding: 10px 0;
            }

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

            .nav-toggle {
                display: flex;
            }

            .hero {
                min-height: auto;
                padding: 40px 0;
            }

            .hero__title {
                font-size: 34px;
                letter-spacing: -0.5px;
            }

            .hero__subtitle {
                font-size: 16px;
            }

            .hero__data-strip {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .hero__data-value {
                font-size: 20px;
            }

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

            .metric-card {
                padding: 18px;
            }

            .metric-card__value {
                font-size: 30px;
            }

            .service-detail {
                grid-template-columns: 1fr;
                padding: 20px;
            }

            .service-detail__img img {
                min-height: 160px;
            }

            .news-item {
                grid-template-columns: 1fr;
                gap: 8px;
                padding: 16px 20px;
            }

            .news-item::before {
                top: 16px;
            }

            .compare-table__row {
                grid-template-columns: 1fr;
            }

            .compare-table__cell {
                padding: 10px 16px;
            }

            .compare-table__row--header .compare-table__cell {
                font-size: 14px;
            }

            .cta-card {
                padding: 24px 20px;
            }

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

            .site-footer__bottom {
                flex-direction: column;
                text-align: center;
            }

            .section__title {
                font-size: 26px;
            }
        }

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

            .topbar__inner {
                padding: 0 16px;
            }

            .site-header__inner {
                padding: 0 16px;
            }

            .brand__text {
                font-size: 17px;
            }

            .hero__inner {
                padding: 40px 16px;
            }

            .hero__title {
                font-size: 28px;
            }

            .hero__cta-group {
                flex-direction: column;
                gap: 10px;
            }

            .btn {
                width: 100%;
                justify-content: center;
            }

            .hero__data-strip {
                grid-template-columns: 1fr;
            }

            .hero__side-panel {
                padding: 20px;
            }

            .deep-content__figure img {
                height: 200px;
            }

            .step-card {
                flex-direction: column;
                gap: 14px;
            }

            .step-card__num {
                width: 44px;
                height: 44px;
                font-size: 28px;
            }

            .brand-intro {
                padding: 20px;
            }

            .faq-item__question {
                font-size: 14.5px;
                padding: 14px 18px;
            }

            .faq-item__answer {
                padding: 0 18px;
            }

            .faq-item.active .faq-item__answer {
                padding: 0 18px 14px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0F3D2E;
            --primary-dark: #0A2B20;
            --secondary: #1B5E48;
            --accent: #D4F44A;
            --danger: #FF5A3C;
            --bg: #F6F5F0;
            --card: #FFFFFF;
            --ink: #1A1D1A;
            --muted: #5A645C;
            --border: #E5E4DC;
            --blue-gray: #647D74;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-pill: 999px;
            --shadow-sm: 0 1px 3px rgba(15, 61, 46, 0.06);
            --shadow-md: 0 10px 24px rgba(15, 61, 46, 0.12);
            --transition: 200ms cubic-bezier(0.2, 0.7, 0.3, 1);
            --container: 1200px;
            --space-section: 96px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
            font-size: 16px;
            font-weight: 400;
            line-height: 1.75;
            color: var(--ink);
            background-color: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部信息条 */
        .topbar {
            background-color: var(--primary-dark);
            color: #E8F0EC;
            font-size: 12px;
            font-weight: 500;
            height: 36px;
            display: flex;
            align-items: center;
            position: relative;
            z-index: 1001;
        }

        .topbar__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        .topbar__left {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .topbar__domain {
            color: var(--accent);
            font-weight: 600;
            letter-spacing: 0.3px;
        }

        .topbar__update {
            color: #B7C9C2;
        }

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

        .topbar__link {
            color: #E8F0EC;
            font-weight: 500;
            transition: color var(--transition);
        }

        .topbar__link:hover {
            color: var(--accent);
        }

        /* 主导航 */
        .site-header {
            background-color: var(--card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: 68px;
            display: flex;
            align-items: center;
            box-shadow: var(--shadow-sm);
        }

        .site-header__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
            gap: 24px;
        }

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

        .brand__mark {
            width: 38px;
            height: 38px;
            background-color: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-weight: 800;
            font-size: 18px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .brand__text {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            margin: 0 auto;
        }

        .main-nav__link {
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            position: relative;
            padding: 6px 0;
            white-space: nowrap;
            transition: color var(--transition);
        }

        .main-nav__link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: width var(--transition);
        }

        .main-nav__link:hover::after,
        .main-nav__link.active::after {
            width: 100%;
        }

        .main-nav__link:hover {
            color: var(--primary);
        }

        .main-nav__link.active {
            color: var(--primary);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            background-color: var(--primary);
            color: var(--accent);
            font-size: 14px;
            font-weight: 700;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            transition: background-color var(--transition), box-shadow var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .header-cta:hover {
            background-color: var(--secondary);
            box-shadow: var(--shadow-md);
            color: var(--accent);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
            flex-shrink: 0;
        }

        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background-color: var(--primary);
            border-radius: 2px;
            transition: transform var(--transition), opacity var(--transition);
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }

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

        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        /* 面包屑 */
        .breadcrumb-section {
            background-color: var(--card);
            border-bottom: 1px solid var(--border);
            padding: 16px 0;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--muted);
            flex-wrap: wrap;
        }

        .breadcrumb-nav a {
            color: var(--muted);
            transition: color var(--transition);
        }

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

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

        .breadcrumb-nav .current {
            color: var(--primary);
            font-weight: 700;
        }

        /* 页面Banner */
        .page-banner {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            padding: 72px 0 56px;
            overflow: hidden;
            isolation: isolate;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 43, 32, 0.92) 0%, rgba(15, 61, 46, 0.82) 50%, rgba(27, 94, 72, 0.6) 100%);
            z-index: -1;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -60px;
            right: -40px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(212, 244, 74, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            z-index: -1;
        }

        .page-banner__inner {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        .page-banner__eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background-color: rgba(212, 244, 74, 0.15);
            color: var(--accent);
            font-size: 13px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            margin-bottom: 20px;
            letter-spacing: 0.5px;
            border: 1px solid rgba(212, 244, 74, 0.25);
        }

        .page-banner__title {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.15;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .page-banner__title .highlight {
            color: var(--accent);
        }

        .page-banner__desc {
            font-size: 16px;
            font-weight: 400;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin-bottom: 0;
        }

        .page-banner__stats {
            display: flex;
            gap: 32px;
            margin-top: 28px;
            flex-wrap: wrap;
        }

        .page-banner__stat {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .page-banner__stat-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            font-family: 'Roboto', 'DIN', 'Inter', sans-serif;
            letter-spacing: -0.5px;
        }

        .page-banner__stat-label {
            font-size: 12px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 0.3px;
        }

        /* 主体区域 */
        .news-section {
            padding: 64px 0;
            background-color: var(--bg);
        }

        .news-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 40px;
            align-items: start;
        }

        /* 新闻列表 */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            display: grid;
            grid-template-columns: 80px 1fr;
            gap: 24px;
            background-color: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px 32px;
            margin-bottom: 16px;
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
            position: relative;
            overflow: hidden;
        }

        .news-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 100%;
            background-color: var(--primary);
            opacity: 0;
            transition: opacity var(--transition);
        }

        .news-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--primary);
        }

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

        .news-item__date {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            gap: 4px;
            padding-top: 4px;
        }

        .news-item__date-day {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            font-family: 'Roboto', 'DIN', 'Inter', sans-serif;
            line-height: 1;
        }

        .news-item__date-month {
            font-size: 13px;
            font-weight: 600;
            color: var(--muted);
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .news-item__date-year {
            font-size: 11px;
            font-weight: 500;
            color: var(--blue-gray);
        }

        .news-item__body {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .news-item__tag {
            display: inline-flex;
            align-items: center;
            align-self: flex-start;
            font-size: 11px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 4px;
            letter-spacing: 0.5px;
            background-color: #F0F5F1;
            color: var(--secondary);
        }

        .news-item__tag--accent {
            background-color: rgba(212, 244, 74, 0.2);
            color: var(--primary);
        }

        .news-item__tag--danger {
            background-color: rgba(255, 90, 60, 0.1);
            color: var(--danger);
        }

        .news-item__title {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--ink);
            transition: color var(--transition);
            margin: 0;
        }

        .news-item:hover .news-item__title {
            color: var(--primary);
        }

        .news-item__excerpt {
            font-size: 15px;
            font-weight: 400;
            line-height: 1.8;
            color: var(--muted);
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-item__readmore {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            align-self: flex-start;
            margin-top: 4px;
            transition: gap var(--transition), color var(--transition);
        }

        .news-item__readmore i {
            font-size: 12px;
            transition: transform var(--transition);
        }

        .news-item__readmore:hover {
            color: var(--secondary);
            gap: 10px;
        }

        .news-item__readmore:hover i {
            transform: translateX(2px);
        }

        /* 滚动渐显 */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s cubic-bezier(0.2, 0.7, 0.3, 1), transform 0.6s cubic-bezier(0.2, 0.7, 0.3, 1);
        }

        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* 侧边栏 */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 92px;
        }

        .sidebar__card {
            background-color: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }

        .sidebar__card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--accent);
            display: inline-block;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud__item {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            background-color: #F6F5F0;
            color: var(--muted);
            border: 1px solid var(--border);
            transition: all var(--transition);
            cursor: pointer;
        }

        .tag-cloud__item:hover {
            background-color: var(--primary);
            color: var(--accent);
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .tag-cloud__item--active {
            background-color: var(--primary);
            color: var(--accent);
            border-color: var(--primary);
        }

        .time-filter {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .time-filter__item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            font-weight: 500;
            color: var(--muted);
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            cursor: pointer;
        }

        .time-filter__item:hover {
            background-color: #F0F5F1;
            color: var(--primary);
        }

        .time-filter__item--active {
            background-color: #F0F5F1;
            color: var(--primary);
            font-weight: 700;
        }

        .time-filter__item i {
            font-size: 12px;
            color: var(--blue-gray);
        }

        .sidebar__subscribe {
            background-color: var(--primary);
            color: #FFFFFF;
            border: none;
            padding: 28px 24px;
        }

        .sidebar__subscribe-title {
            font-size: 17px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 8px;
        }

        .sidebar__subscribe-desc {
            font-size: 13px;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .sidebar__subscribe-form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .sidebar__subscribe-input {
            background-color: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            font-size: 14px;
            color: #FFFFFF;
            transition: border-color var(--transition), background-color var(--transition);
        }

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

        .sidebar__subscribe-input:focus {
            border-color: var(--accent);
            background-color: rgba(255, 255, 255, 0.15);
            outline: 2px solid rgba(212, 244, 74, 0.3);
        }

        .sidebar__subscribe-btn {
            background-color: var(--accent);
            color: var(--primary-dark);
            font-size: 14px;
            font-weight: 700;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            transition: background-color var(--transition), transform var(--transition);
        }

        .sidebar__subscribe-btn:hover {
            background-color: #C4E43A;
            transform: translateY(-1px);
        }

        .sidebar__subscribe-note {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 12px;
            line-height: 1.5;
        }

        .sidebar__risk-banner {
            background-color: rgba(255, 90, 60, 0.08);
            border: 1px solid rgba(255, 90, 60, 0.2);
            border-radius: var(--radius-md);
            padding: 20px;
            display: flex;
            gap: 12px;
            align-items: flex-start;
        }

        .sidebar__risk-icon {
            width: 36px;
            height: 36px;
            flex-shrink: 0;
            background-color: var(--danger);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFFFFF;
            font-size: 16px;
        }

        .sidebar__risk-text {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.7;
        }

        .sidebar__risk-text strong {
            color: var(--danger);
            font-weight: 700;
        }

        /* 底部CTA区块 */
        .news-cta {
            background-color: var(--primary-dark);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
            isolation: isolate;
        }

        .news-cta::before {
            content: '';
            position: absolute;
            top: -100px;
            left: -100px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(212, 244, 74, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            z-index: -1;
        }

        .news-cta::after {
            content: '';
            position: absolute;
            bottom: -80px;
            right: -60px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(255, 90, 60, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            z-index: -1;
        }

        .news-cta__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 48px;
            flex-wrap: wrap;
        }

        .news-cta__text {
            flex: 1;
            min-width: 280px;
        }

        .news-cta__title {
            font-size: 28px;
            font-weight: 800;
            color: #FFFFFF;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .news-cta__title .highlight {
            color: var(--accent);
        }

        .news-cta__desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.75;
            max-width: 520px;
        }

        .news-cta__actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .news-cta__btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 700;
            padding: 14px 28px;
            border-radius: var(--radius-pill);
            transition: all var(--transition);
        }

        .news-cta__btn--primary {
            background-color: var(--accent);
            color: var(--primary-dark);
        }

        .news-cta__btn--primary:hover {
            background-color: #C4E43A;
            box-shadow: 0 8px 20px rgba(212, 244, 74, 0.25);
            transform: translateY(-2px);
        }

        .news-cta__btn--outline {
            border: 1.5px solid rgba(255, 255, 255, 0.4);
            color: #FFFFFF;
            background: transparent;
        }

        .news-cta__btn--outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(255, 255, 255, 0.05);
        }

        /* 页脚 */
        .site-footer {
            background-color: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .site-footer__grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .site-footer__brand h3 {
            font-size: 20px;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .site-footer__brand .highlight {
            color: var(--accent);
        }

        .site-footer__brand p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 0;
        }

        .site-footer__col h4 {
            font-size: 14px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .site-footer__col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .site-footer__col a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
        }

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

        .site-footer__bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
        }

        .site-footer__sep {
            color: rgba(255, 255, 255, 0.3);
            margin: 0 4px;
        }

        .site-footer__bottom a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
        }

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

        /* 移动端导航抽屉 */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 36px;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: rgba(10, 43, 32, 0.96);
            z-index: 999;
            padding: 32px 24px;
            flex-direction: column;
            gap: 20px;
            overflow-y: auto;
        }

        .mobile-nav-overlay.active {
            display: flex;
        }

        .mobile-nav-overlay .main-nav__link {
            font-size: 18px;
            font-weight: 600;
            color: #FFFFFF;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .mobile-nav-overlay .main-nav__link:hover,
        .mobile-nav-overlay .main-nav__link.active {
            color: var(--accent);
        }

        .mobile-nav-overlay .header-cta {
            margin-top: 12px;
            justify-content: center;
            padding: 14px 24px;
            font-size: 15px;
        }

        /* 响应式 */
        @media (max-width: 1199px) {
            :root {
                --space-section: 64px;
            }
            .page-banner__title {
                font-size: 36px;
            }
            .news-layout {
                grid-template-columns: 1fr 280px;
                gap: 28px;
            }
            .news-item {
                grid-template-columns: 64px 1fr;
                gap: 18px;
                padding: 22px 24px;
            }
            .news-item__date-day {
                font-size: 26px;
            }
        }

        @media (max-width: 1024px) {
            .topbar__update {
                display: none;
            }
            .main-nav {
                gap: 20px;
            }
            .main-nav__link {
                font-size: 14px;
            }
            .header-cta {
                font-size: 13px;
                padding: 8px 16px;
            }
            .news-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }
            .sidebar__card {
                flex: 1;
                min-width: 240px;
            }
            .sidebar__subscribe {
                flex: 2;
                min-width: 280px;
            }
            .sidebar__risk-banner {
                flex: 1;
                min-width: 240px;
            }
            .site-footer__grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space-section: 48px;
            }
            .topbar__right {
                gap: 12px;
            }
            .topbar__right .topbar__link:not(:first-child) {
                display: none;
            }
            .site-header {
                height: 60px;
            }
            .brand__text {
                font-size: 17px;
            }
            .brand__mark {
                width: 32px;
                height: 32px;
                font-size: 15px;
                border-radius: 8px;
            }
            .main-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .page-banner {
                padding: 48px 0 40px;
            }
            .page-banner__title {
                font-size: 28px;
                line-height: 1.25;
            }
            .page-banner__desc {
                font-size: 14px;
                line-height: 1.7;
            }
            .page-banner__stats {
                gap: 20px;
                margin-top: 20px;
            }
            .page-banner__stat-num {
                font-size: 22px;
            }
            .news-section {
                padding: 40px 0;
            }
            .news-item {
                grid-template-columns: 1fr;
                gap: 12px;
                padding: 20px;
            }
            .news-item__date {
                flex-direction: row;
                gap: 8px;
                align-items: baseline;
                padding-top: 0;
            }
            .news-item__date-day {
                font-size: 20px;
            }
            .news-item__date-month {
                font-size: 12px;
            }
            .news-item__date-year {
                font-size: 11px;
            }
            .news-item__title {
                font-size: 17px;
            }
            .news-item__excerpt {
                font-size: 14px;
                -webkit-line-clamp: 4;
            }
            .sidebar {
                flex-direction: column;
            }
            .sidebar__card {
                min-width: auto;
            }
            .sidebar__subscribe {
                min-width: auto;
            }
            .sidebar__risk-banner {
                min-width: auto;
            }
            .news-cta {
                padding: 48px 0;
            }
            .news-cta__inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 24px;
            }
            .news-cta__title {
                font-size: 22px;
            }
            .news-cta__btn {
                font-size: 14px;
                padding: 12px 20px;
            }
            .site-footer__grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer__bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .topbar__left .topbar__domain {
                font-size: 11px;
            }
            .breadcrumb-nav {
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .topbar__inner {
                padding: 0 16px;
            }
            .site-header__inner {
                padding: 0 16px;
            }
            .page-banner__inner {
                padding: 0 16px;
            }
            .page-banner__title {
                font-size: 24px;
            }
            .page-banner__desc {
                font-size: 13px;
            }
            .page-banner__stat-num {
                font-size: 20px;
            }
            .page-banner__stat-label {
                font-size: 11px;
            }
            .news-item {
                padding: 16px;
            }
            .news-item__title {
                font-size: 15px;
            }
            .news-item__excerpt {
                font-size: 13px;
                -webkit-line-clamp: 5;
            }
            .news-item__readmore {
                font-size: 13px;
            }
            .sidebar__card {
                padding: 18px;
            }
            .sidebar__subscribe {
                padding: 20px 18px;
            }
            .news-cta__btn {
                width: 100%;
                justify-content: center;
            }
            .news-cta__actions {
                width: 100%;
                flex-direction: column;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #0F3D2E;
            --primary-dark: #0A2B20;
            --secondary: #1B5E48;
            --accent: #D4F44A;
            --danger: #FF5A3C;
            --bg: #F6F5F0;
            --card: #FFFFFF;
            --ink: #1A1D1A;
            --muted: #5A645C;
            --border: #E5E4DC;
            --blue-gray: #647D74;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-pill: 999px;
            --shadow-sm: 0 1px 3px rgba(15, 61, 46, 0.06);
            --shadow-md: 0 10px 24px rgba(15, 61, 46, 0.12);
            --transition: 200ms cubic-bezier(0.2, 0.7, 0.3, 1);
            --container: 1200px;
            --space-section: 96px;
        }
        @media (max-width: 768px) {
            :root {
                --space-section: 56px;
            }
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
            font-size: 16px;
            font-weight: 400;
            line-height: 1.75;
            color: var(--ink);
            background-color: var(--bg);
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul {
            list-style: none;
        }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ---- 顶部信息条 ---- */
        .topbar {
            background-color: var(--primary-dark);
            color: #E8F0EC;
            font-size: 12px;
            font-weight: 500;
            height: 36px;
            display: flex;
            align-items: center;
            position: relative;
            z-index: 1001;
        }
        .topbar__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .topbar__left {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .topbar__domain {
            color: var(--accent);
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .topbar__update {
            color: #B7C9C2;
        }
        .topbar__right {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .topbar__link {
            color: #E8F0EC;
            font-weight: 500;
            transition: color var(--transition);
        }
        .topbar__link:hover {
            color: var(--accent);
        }
        /* ---- 主导航 ---- */
        .site-header {
            background-color: var(--card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: 68px;
            display: flex;
            align-items: center;
            box-shadow: var(--shadow-sm);
        }
        .site-header__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
            gap: 24px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand__mark {
            width: 38px;
            height: 38px;
            background-color: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-weight: 800;
            font-size: 18px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .brand__text {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            margin: 0 auto;
        }
        .main-nav__link {
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            position: relative;
            padding: 6px 0;
            white-space: nowrap;
            transition: color var(--transition);
        }
        .main-nav__link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: width var(--transition);
        }
        .main-nav__link:hover::after,
        .main-nav__link.active::after {
            width: 100%;
        }
        .main-nav__link:hover {
            color: var(--primary);
        }
        .main-nav__link.active {
            color: var(--primary);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            background-color: var(--primary);
            color: var(--accent);
            font-size: 14px;
            font-weight: 700;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            transition: background-color var(--transition), box-shadow var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .header-cta:hover {
            background-color: var(--secondary);
            box-shadow: var(--shadow-md);
            color: var(--accent);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
            flex-shrink: 0;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
            transition: transform var(--transition), opacity var(--transition);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ---- 面包屑 ---- */
        .breadcrumb-section {
            background-color: var(--bg);
            padding: 20px 0 0;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--primary);
            font-weight: 600;
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--secondary);
        }
        .breadcrumb__sep {
            color: var(--border);
            user-select: none;
        }
        .breadcrumb__current {
            color: var(--muted);
        }

        /* ---- Hero：白皮书获客 ---- */
        .hero-report {
            background-color: var(--primary-dark);
            background-image: linear-gradient(135deg, rgba(10, 43, 32, 0.95) 0%, rgba(15, 61, 46, 0.88) 40%, rgba(27, 94, 72, 0.75) 100%), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 72px 0 64px;
            color: #FFFFFF;
            position: relative;
            overflow: hidden;
        }
        .hero-report::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent) 0%, var(--accent) 30%, transparent 30.5%, transparent 51%, var(--accent) 51%, var(--accent) 72%, transparent 72.5%, transparent 100%);
            opacity: 0.7;
        }
        .hero-report__grid {
            display: grid;
            grid-template-columns: 400px 1fr;
            gap: 56px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-report__cover-wrap {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
            transform: rotate(-1.5deg);
            transition: transform var(--transition);
        }
        .hero-report__cover-wrap:hover {
            transform: rotate(0deg) translateY(-4px);
        }
        .hero-report__cover-wrap img {
            aspect-ratio: 3/4;
            object-fit: cover;
            width: 100%;
        }
        .hero-report__cover-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background-color: var(--accent);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.5px;
        }
        .hero-report__content h1 {
            font-size: clamp(32px, 4vw, 48px);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: #FFFFFF;
        }
        .hero-report__content h1 .highlight {
            color: var(--accent);
        }
        .hero-report__subtitle {
            font-size: 17px;
            line-height: 1.8;
            color: #D5E2DD;
            max-width: 600px;
            margin-bottom: 28px;
            font-weight: 400;
        }
        .hero-report__toc {
            background-color: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: var(--radius-md);
            padding: 20px 28px;
            margin-bottom: 28px;
            backdrop-filter: blur(4px);
        }
        .hero-report__toc-label {
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 10px;
        }
        .hero-report__toc-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            font-size: 15px;
            color: #E8F0EC;
        }
        .hero-report__toc-list li {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .hero-report__toc-list li::before {
            content: '◆';
            color: var(--accent);
            font-size: 10px;
        }
        .hero-report__actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background-color: var(--accent);
            color: var(--primary-dark);
            font-size: 15px;
            font-weight: 700;
            padding: 13px 30px;
            border-radius: var(--radius-pill);
            transition: background-color var(--transition), box-shadow var(--transition), transform var(--transition);
            letter-spacing: 0.3px;
        }
        .btn-primary:hover {
            background-color: #C5E93A;
            box-shadow: 0 8px 20px rgba(212, 244, 74, 0.3);
            transform: translateY(-2px);
            color: var(--primary-dark);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background-color: transparent;
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 26px;
            border-radius: var(--radius-pill);
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            transition: border-color var(--transition), background-color var(--transition), color var(--transition);
        }
        .btn-outline-light:hover {
            border-color: var(--accent);
            background-color: rgba(212, 244, 74, 0.1);
            color: var(--accent);
        }

        /* ---- 指标概览 ---- */
        .metrics-strip {
            padding: 48px 0 32px;
            background-color: var(--card);
            border-bottom: 1px solid var(--border);
        }
        .metrics-strip__grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 16px;
        }
        .metrics-strip__item {
            background-color: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            text-align: left;
            transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
        }
        .metrics-strip__item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .metrics-strip__label {
            font-size: 12px;
            font-weight: 600;
            color: var(--muted);
            letter-spacing: 0.3px;
            margin-bottom: 6px;
        }
        .metrics-strip__value {
            font-family: 'Roboto', 'DIN', 'Inter', sans-serif;
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .metrics-strip__value .unit {
            font-size: 13px;
            font-weight: 500;
            color: var(--muted);
            margin-left: 4px;
        }
        .metrics-strip__change {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            margin-top: 6px;
            padding: 2px 8px;
            border-radius: var(--radius-sm);
        }
        .metrics-strip__change.up {
            color: #2E7D32;
            background-color: #E8F5E9;
        }
        .metrics-strip__change.down {
            color: var(--danger);
            background-color: #FFEBE6;
        }
        .metrics-strip__note {
            display: block;
            font-size: 11px;
            color: var(--muted);
            margin-top: 8px;
            font-weight: 400;
        }

        /* ---- 数据指数主体 ---- */
        .data-section {
            padding: 56px 0 48px;
            background-color: var(--bg);
        }
        .section-heading {
            margin-bottom: 32px;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .section-heading h2 {
            font-size: clamp(24px, 2.5vw, 32px);
            font-weight: 700;
            line-height: 1.25;
            color: var(--ink);
            letter-spacing: -0.3px;
        }
        .section-heading__sub {
            font-size: 15px;
            color: var(--muted);
            max-width: 420px;
            line-height: 1.7;
        }
        .filter-tabs {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }
        .filter-tab {
            background-color: var(--card);
            border: 1px solid var(--border);
            color: var(--muted);
            font-size: 14px;
            font-weight: 600;
            padding: 8px 20px;
            border-radius: var(--radius-pill);
            transition: background-color var(--transition), color var(--transition), border-color var(--transition);
        }
        .filter-tab:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .filter-tab.active {
            background-color: var(--primary);
            color: var(--accent);
            border-color: var(--primary);
        }

        /* 数据表格 */
        .data-table-wrap {
            background-color: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px;
        }
        .data-table thead {
            background-color: var(--primary);
            color: #FFFFFF;
        }
        .data-table th {
            padding: 14px 16px;
            text-align: left;
            font-weight: 600;
            font-size: 13px;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .data-table th:last-child {
            text-align: right;
        }
        .data-table td {
            padding: 14px 16px;
            border-bottom: 1px solid var(--border);
            vertical-align: middle;
            color: var(--ink);
            font-weight: 400;
        }
        .data-table tbody tr:last-child td {
            border-bottom: none;
        }
        .data-table tbody tr {
            transition: background-color var(--transition);
            cursor: pointer;
        }
        .data-table tbody tr:hover {
            background-color: #F0F5F1;
        }
        .data-table td:last-child {
            text-align: right;
            font-family: 'Roboto', 'DIN', sans-serif;
            font-weight: 600;
        }
        .data-table .match-cell {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .data-table .match-cell img {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .data-table .match-cell__name {
            font-weight: 600;
            font-size: 14px;
            white-space: nowrap;
        }
        .data-table .match-cell__league {
            display: block;
            font-size: 12px;
            color: var(--muted);
            font-weight: 400;
        }
        .change-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: var(--radius-sm);
            min-width: 48px;
            text-align: center;
        }
        .change-badge.up {
            color: #2E7D32;
            background-color: #E8F5E9;
        }
        .change-badge.down {
            color: var(--danger);
            background-color: #FFEBE6;
        }
        .change-badge.flat {
            color: var(--muted);
            background-color: #F0F0EC;
        }

        /* ---- 历史同赛事对比 ---- */
        .compare-section {
            padding: 48px 0 56px;
            background-color: var(--card);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .compare-section__grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: stretch;
        }
        .compare-card {
            background-color: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .compare-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .compare-card__header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
        }
        .compare-card__title {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink);
        }
        .compare-card__badge {
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            background-color: var(--primary);
            color: var(--accent);
        }
        .compare-card__badge.alt {
            background-color: var(--blue-gray);
            color: #FFFFFF;
        }
        .compare-card__row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
        }
        .compare-card__row:last-child {
            border-bottom: none;
        }
        .compare-card__row-label {
            font-size: 14px;
            color: var(--muted);
        }
        .compare-card__row-value {
            font-size: 16px;
            font-weight: 700;
            color: var(--ink);
            font-family: 'Roboto', 'DIN', sans-serif;
        }
        .compare-card__row-value.highlight {
            color: var(--primary);
        }
        .compare-card__row-value.danger {
            color: var(--danger);
        }
        .compare-card__note {
            font-size: 12px;
            color: var(--muted);
            margin-top: 16px;
            padding-top: 12px;
            border-top: 1px dashed var(--border);
        }

        /* ---- 数据解读流程 ---- */
        .process-section {
            padding: 56px 0;
            background-color: var(--bg);
        }
        .process-section__grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .process-step {
            position: relative;
            background-color: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .process-step:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .process-step__number {
            font-family: 'Roboto', 'DIN', sans-serif;
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 14px;
            letter-spacing: -2px;
        }
        .process-step__number::after {
            content: '';
            display: block;
            width: 36px;
            height: 3px;
            background-color: var(--accent);
            margin-top: 8px;
            border-radius: 2px;
        }
        .process-step h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 10px;
        }
        .process-step p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }

        /* ---- 适用场景 ---- */
        .scenarios-section {
            padding: 56px 0;
            background-color: var(--primary-dark);
            color: #FFFFFF;
        }
        .scenarios-section .section-heading h2 {
            color: #FFFFFF;
        }
        .scenarios-section .section-heading__sub {
            color: #B7C9C2;
        }
        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .scenario-card {
            background-color: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-md);
            padding: 24px 22px;
            transition: background-color var(--transition), border-color var(--transition), transform var(--transition);
        }
        .scenario-card:hover {
            background-color: rgba(255, 255, 255, 0.1);
            border-color: var(--accent);
            transform: translateY(-2px);
        }
        .scenario-card__icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background-color: var(--accent);
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            margin-bottom: 16px;
        }
        .scenario-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 8px;
        }
        .scenario-card p {
            font-size: 14px;
            color: #B7C9C2;
            line-height: 1.7;
        }

        /* ---- FAQ ---- */
        .faq-section {
            padding: 56px 0;
            background-color: var(--bg);
        }
        .faq-section__grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            align-items: start;
        }
        .faq-section__intro h2 {
            font-size: clamp(24px, 2.5vw, 32px);
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 16px;
            line-height: 1.25;
        }
        .faq-section__intro p {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .faq-section__intro .btn-primary {
            background-color: var(--primary);
            color: var(--accent);
        }
        .faq-section__intro .btn-primary:hover {
            background-color: var(--secondary);
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            background-color: var(--card);
            overflow: hidden;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            transition: background-color var(--transition);
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-item__question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            transition: background-color var(--transition);
            gap: 12px;
        }
        .faq-item__question:hover {
            background-color: #F0F5F1;
        }
        .faq-item__icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: var(--bg);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            transition: transform var(--transition), background-color var(--transition), color var(--transition);
        }
        .faq-item.open .faq-item__icon {
            transform: rotate(45deg);
            background-color: var(--primary);
            color: var(--accent);
        }
        .faq-item__answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 350ms cubic-bezier(0.2, 0.7, 0.3, 1), padding 350ms cubic-bezier(0.2, 0.7, 0.3, 1);
            padding: 0 20px;
            font-size: 14px;
            color: var(--muted);
            line-height: 1.75;
        }
        .faq-item.open .faq-item__answer {
            max-height: 320px;
            padding: 0 20px 18px;
        }

        /* ---- CTA 转化 ---- */
        .cta-section {
            padding: 64px 0;
            background-color: var(--primary-dark);
            background-image: linear-gradient(135deg, rgba(10, 43, 32, 0.95) 0%, rgba(15, 61, 46, 0.9) 100%), url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            color: #FFFFFF;
        }
        .cta-card {
            background-color: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-md);
            padding: 36px 40px;
            max-width: 640px;
            margin: 0 auto;
            backdrop-filter: blur(4px);
        }
        .cta-card h2 {
            font-size: 24px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .cta-card p {
            font-size: 15px;
            color: #D5E2DD;
            margin-bottom: 24px;
            line-height: 1.7;
        }
        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .cta-form__row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }
        .cta-form label {
            font-size: 13px;
            font-weight: 600;
            color: #E8F0EC;
            letter-spacing: 0.3px;
            display: block;
            margin-bottom: 4px;
        }
        .cta-form input,
        .cta-form select {
            width: 100%;
            height: 48px;
            background-color: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-sm);
            padding: 0 16px;
            color: #FFFFFF;
            font-size: 15px;
            transition: border-color var(--transition), background-color var(--transition);
        }
        .cta-form input::placeholder {
            color: #B7C9C2;
        }
        .cta-form input:focus,
        .cta-form select:focus {
            border-color: var(--accent);
            background-color: rgba(255, 255, 255, 0.15);
        }
        .cta-form select option {
            color: var(--ink);
            background-color: var(--card);
        }
        .cta-form__submit {
            height: 50px;
            background-color: var(--accent);
            color: var(--primary-dark);
            font-size: 16px;
            font-weight: 700;
            border-radius: var(--radius-pill);
            transition: background-color var(--transition), box-shadow var(--transition);
            letter-spacing: 0.3px;
            margin-top: 8px;
        }
        .cta-form__submit:hover {
            background-color: #C5E93A;
            box-shadow: 0 8px 20px rgba(212, 244, 74, 0.3);
        }
        .cta-form__note {
            font-size: 12px;
            color: #B7C9C2;
            text-align: center;
            margin-top: 12px;
        }
        .risk-note {
            color: var(--danger) !important;
        }

        /* ---- 页脚 ---- */
        .site-footer {
            background-color: var(--primary-dark);
            color: #D5E2DD;
            padding: 56px 0 0;
        }
        .site-footer__grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .site-footer__brand h3 {
            font-size: 22px;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 12px;
        }
        .site-footer__brand p {
            font-size: 14px;
            color: #B7C9C2;
            line-height: 1.7;
            max-width: 340px;
        }
        .site-footer__col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
        }
        .site-footer__col ul li {
            margin-bottom: 10px;
        }
        .site-footer__col ul li a {
            font-size: 14px;
            color: #B7C9C2;
            transition: color var(--transition);
        }
        .site-footer__col ul li a:hover {
            color: var(--accent);
        }
        .site-footer__bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            font-size: 12px;
            color: #B7C9C2;
        }
        .site-footer__bottom a {
            color: #D5E2DD;
            font-weight: 500;
            transition: color var(--transition);
        }
        .site-footer__bottom a:hover {
            color: var(--accent);
        }
        .site-footer__sep {
            color: rgba(255, 255, 255, 0.3);
        }

        /* ---- 深度内容区 ---- */
        .deep-content {
            padding: 48px 0;
            background-color: var(--bg);
        }
        .deep-content__grid {
            display: grid;
            grid-template-columns: 320px 1fr;
            gap: 48px;
            align-items: start;
        }
        .deep-content__title h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .deep-content__title p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }
        .deep-content__body {
            font-size: 15px;
            line-height: 1.9;
            color: var(--ink);
        }
        .deep-content__body h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 24px 0 10px;
            color: var(--primary);
        }
        .deep-content__body p {
            margin-bottom: 14px;
            color: #3A423C;
        }
        .deep-content__body ul {
            margin: 10px 0 16px;
            padding-left: 20px;
        }
        .deep-content__body ul li {
            margin-bottom: 6px;
            position: relative;
            padding-left: 16px;
            color: #3A423C;
        }
        .deep-content__body ul li::before {
            content: '•';
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: 700;
        }
        .deep-content__image {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin: 20px 0;
            box-shadow: var(--shadow-sm);
        }
        .deep-content__image img {
            width: 100%;
            aspect-ratio: 16/8;
            object-fit: cover;
        }
        .data-callout {
            background-color: #F0F5F1;
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            padding: 18px 24px;
            margin: 20px 0;
            font-size: 14px;
            color: var(--primary);
            font-weight: 500;
            line-height: 1.8;
        }
        .data-callout strong {
            color: var(--primary-dark);
        }

        /* ---- 响应式 ---- */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 20px;
            }
            .main-nav__link {
                font-size: 14px;
            }
            .hero-report__grid {
                grid-template-columns: 280px 1fr;
                gap: 32px;
            }
            .metrics-strip__grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .process-section__grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenarios-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .faq-section__grid {
                grid-template-columns: 1fr;
            }
            .deep-content__grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer__grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
            .compare-section__grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 768px) {
            .topbar__right {
                display: none;
            }
            .topbar__update {
                display: none;
            }
            .site-header {
                height: 60px;
            }
            .site-header__inner {
                gap: 12px;
                padding: 0 16px;
            }
            .brand__text {
                font-size: 17px;
            }
            .brand__mark {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }
            .main-nav {
                position: fixed;
                top: 60px;
                right: 0;
                width: 100%;
                max-width: 340px;
                height: calc(100vh - 60px);
                background-color: var(--card);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 24px;
                transform: translateX(100%);
                transition: transform 300ms cubic-bezier(0.2, 0.7, 0.3, 1);
                box-shadow: -8px 0 24px rgba(0, 0, 0, 0.1);
                z-index: 999;
                overflow-y: auto;
            }
            .main-nav.open {
                transform: translateX(0);
            }
            .main-nav__link {
                font-size: 18px;
                padding: 14px 0;
                width: 100%;
                border-bottom: 1px solid var(--border);
            }
            .main-nav__link::after {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .hero-report {
                padding: 40px 0 48px;
            }
            .hero-report__grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .hero-report__cover-wrap {
                max-width: 240px;
                transform: rotate(0deg);
            }
            .hero-report__content h1 {
                font-size: 28px;
            }
            .hero-report__subtitle {
                font-size: 15px;
            }
            .hero-report__actions {
                flex-direction: column;
            }
            .hero-report__actions .btn-primary,
            .hero-report__actions .btn-outline-light {
                width: 100%;
                justify-content: center;
            }
            .metrics-strip__grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .metrics-strip__value {
                font-size: 20px;
            }
            .data-section {
                padding: 32px 0;
            }
            .section-heading {
                flex-direction: column;
                align-items: flex-start;
            }
            .filter-tabs {
                gap: 6px;
            }
            .filter-tab {
                font-size: 12px;
                padding: 6px 14px;
            }
            .data-table {
                font-size: 13px;
            }
            .data-table th {
                padding: 10px 12px;
                font-size: 11px;
            }
            .data-table td {
                padding: 10px 12px;
                font-size: 12px;
            }
            .data-table .match-cell img {
                width: 28px;
                height: 28px;
            }
            .process-section__grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .scenarios-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .cta-card {
                padding: 24px 20px;
            }
            .cta-form__row {
                grid-template-columns: 1fr;
            }
            .site-footer__grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer__bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .deep-content {
                padding: 32px 0;
            }
            .compare-card {
                padding: 20px 16px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .metrics-strip__grid {
                grid-template-columns: 1fr;
            }
            .metrics-strip__item {
                padding: 14px 12px;
            }
            .metrics-strip__value {
                font-size: 22px;
            }
            .hero-report__content h1 {
                font-size: 24px;
            }
            .hero-report__toc-list {
                flex-direction: column;
                gap: 6px;
                font-size: 13px;
            }
            .faq-item__question {
                font-size: 14px;
                padding: 15px 16px;
            }
            .faq-item__answer {
                font-size: 13px;
            }
            .data-table th:nth-child(4),
            .data-table td:nth-child(4) {
                display: none;
            }
            .section-heading h2 {
                font-size: 22px;
            }
            .process-step__number {
                font-size: 32px;
            }
            .cta-card h2 {
                font-size: 20px;
            }
        }

        /* ---- 动效 ---- */
        .fade-up {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 600ms ease, transform 600ms cubic-bezier(0.2, 0.7, 0.3, 1);
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }
        /* ---- 焦点可访问性 ---- */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

/* roulang page: category3 */
:root {
            --primary: #0F3D2E;
            --primary-dark: #0A2B20;
            --secondary: #1B5E48;
            --accent: #D4F44A;
            --danger: #FF5A3C;
            --bg: #F6F5F0;
            --card: #FFFFFF;
            --ink: #1A1D1A;
            --muted: #5A645C;
            --border: #E5E4DC;
            --blue-gray: #647D74;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-pill: 999px;
            --shadow-sm: 0 1px 3px rgba(15, 61, 46, 0.06);
            --shadow-md: 0 10px 24px rgba(15, 61, 46, 0.12);
            --transition: 200ms cubic-bezier(0.2, 0.7, 0.3, 1);
            --container: 1200px;
            --space-section: 96px;
        }
        @media (max-width: 768px) {
            :root {
                --space-section: 56px;
            }
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
            font-size: 16px;
            font-weight: 400;
            line-height: 1.75;
            color: var(--ink);
            background-color: var(--bg);
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部信息条 */
        .topbar {
            background-color: var(--primary-dark);
            color: #E8F0EC;
            font-size: 12px;
            font-weight: 500;
            height: 36px;
            display: flex;
            align-items: center;
            position: relative;
            z-index: 1001;
        }
        .topbar__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .topbar__left {
            display: flex;
            align-items: center;
            gap: 16px;
            min-width: 0;
        }
        .topbar__domain {
            color: var(--accent);
            font-weight: 600;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .topbar__update {
            color: #B7C9C2;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .topbar__right {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-shrink: 0;
        }
        .topbar__link {
            color: #E8F0EC;
            font-weight: 500;
            transition: color var(--transition);
            white-space: nowrap;
        }
        .topbar__link:hover {
            color: var(--accent);
        }

        /* 主导航 */
        .site-header {
            background-color: var(--card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: 68px;
            display: flex;
            align-items: center;
            box-shadow: var(--shadow-sm);
        }
        .site-header__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
            gap: 24px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
        }
        .brand__mark {
            width: 38px;
            height: 38px;
            background-color: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-weight: 800;
            font-size: 18px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .brand__text {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            margin: 0 auto;
        }
        .main-nav__link {
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            position: relative;
            padding: 6px 0;
            white-space: nowrap;
            transition: color var(--transition);
            text-decoration: none;
        }
        .main-nav__link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: width var(--transition);
        }
        .main-nav__link:hover::after,
        .main-nav__link.active::after {
            width: 100%;
        }
        .main-nav__link:hover {
            color: var(--primary);
        }
        .main-nav__link.active {
            color: var(--primary);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            background-color: var(--primary);
            color: var(--accent);
            font-size: 14px;
            font-weight: 700;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            transition: background-color var(--transition), box-shadow var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
            text-decoration: none;
        }
        .header-cta:hover {
            background-color: var(--secondary);
            box-shadow: var(--shadow-md);
            color: var(--accent);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
            flex-shrink: 0;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 1px;
            transition: all var(--transition);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* 移动端导航抽屉 */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 104px;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: var(--card);
            z-index: 999;
            padding: 24px;
            overflow-y: auto;
            box-shadow: var(--shadow-md);
        }
        .mobile-nav.active {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .mobile-nav__link {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink);
            padding: 14px 0;
            border-bottom: 1px solid var(--border);
            text-decoration: none;
            transition: color var(--transition);
        }
        .mobile-nav__link:hover,
        .mobile-nav__link.active {
            color: var(--primary);
        }
        .mobile-nav__footer {
            margin-top: auto;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            font-size: 13px;
            color: var(--muted);
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        /* 面包屑 */
        .breadcrumb {
            padding: 20px 0 0;
            font-size: 13px;
            color: var(--muted);
        }
        .breadcrumb__inner {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--primary);
            font-weight: 600;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--secondary);
        }
        .breadcrumb__sep {
            color: #B0B8B2;
        }
        .breadcrumb__current {
            color: var(--muted);
            font-weight: 500;
        }

        /* 页面标题区 */
        .page-hero {
            padding: 48px 0 32px;
        }
        .page-hero__inner {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .page-hero__title {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--ink);
            letter-spacing: -0.5px;
        }
        .page-hero__title span {
            display: block;
            font-size: 16px;
            font-weight: 600;
            color: var(--secondary);
            margin-top: 8px;
            letter-spacing: 0.5px;
        }
        .page-hero__desc {
            max-width: 480px;
            font-size: 15px;
            color: var(--muted);
            line-height: 1.8;
        }
        .page-hero__badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background-color: var(--accent);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
        }

        /* 工具矩阵区 - 不对称布局 */
        .tools-section {
            padding: 48px 0 64px;
        }
        .tools-section__header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
            gap: 16px;
            flex-wrap: wrap;
        }
        .tools-section__title {
            font-size: 28px;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.3;
        }
        .tools-section__subtitle {
            font-size: 14px;
            color: var(--muted);
            max-width: 400px;
            text-align: right;
        }
        .tools-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 24px;
        }
        .tools-grid__left {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .tools-grid__right {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .tool-card {
            background-color: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
            display: flex;
            flex-direction: column;
            gap: 12px;
            position: relative;
            overflow: hidden;
        }
        .tool-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--secondary);
            transform: translateY(-2px);
        }
        .tool-card__tag {
            display: inline-flex;
            align-items: center;
            font-size: 11px;
            font-weight: 700;
            color: var(--primary);
            background-color: #E8F0EC;
            padding: 4px 10px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.5px;
            width: fit-content;
        }
        .tool-card__tag--accent {
            background-color: var(--accent);
            color: var(--primary-dark);
        }
        .tool-card__title {
            font-size: 20px;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.4;
        }
        .tool-card__desc {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.75;
        }
        .tool-card__image {
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin-top: 4px;
            aspect-ratio: 16/9;
            background-color: #EDEBE4;
            position: relative;
        }
        .tool-card__image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .tool-card__foot {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-top: 4px;
        }
        .tool-card__btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            transition: color var(--transition), gap var(--transition);
            text-decoration: none;
        }
        .tool-card__btn:hover {
            color: var(--secondary);
            gap: 10px;
        }
        .tool-card__stats {
            display: flex;
            gap: 16px;
            font-size: 12px;
            color: var(--blue-gray);
            font-weight: 600;
        }
        .tool-card__stats span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .tool-card--large .tool-card__image {
            aspect-ratio: 21/9;
        }
        .tool-card--compact {
            padding: 20px;
        }
        .tool-card--compact .tool-card__title {
            font-size: 17px;
        }
        .tool-card--compact .tool-card__image {
            aspect-ratio: 16/9;
        }

        /* 底行三列非等宽 */
        .tools-bottom-row {
            display: grid;
            grid-template-columns: 1.2fr 1fr 0.8fr;
            gap: 20px;
            margin-top: 24px;
        }
        .tool-card--mini {
            padding: 20px;
            gap: 8px;
        }
        .tool-card--mini .tool-card__title {
            font-size: 15px;
        }
        .tool-card--mini .tool-card__desc {
            font-size: 13px;
            line-height: 1.6;
        }
        .tool-card--mini .tool-card__btn {
            font-size: 13px;
        }

        /* 服务流程区 */
        .process-section {
            padding: 48px 0 64px;
        }
        .process-section__title {
            font-size: 28px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 32px;
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .process-step {
            background-color: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            position: relative;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
        }
        .process-step:hover {
            box-shadow: var(--shadow-md);
        }
        .process-step__num {
            font-family: 'Roboto', 'Inter', sans-serif;
            font-size: 36px;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: -1px;
            line-height: 1;
            margin-bottom: 12px;
        }
        .process-step__title {
            font-size: 16px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 6px;
        }
        .process-step__desc {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.6;
        }

        /* 数据展示条 */
        .data-strip {
            background-color: var(--primary-dark);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            margin: 0 0 64px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .data-strip__item {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .data-strip__label {
            font-size: 12px;
            font-weight: 600;
            color: #9FB5AC;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }
        .data-strip__value {
            font-family: 'Roboto', 'Inter', sans-serif;
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .data-strip__note {
            font-size: 11px;
            color: #7A948A;
        }

        /* CTA 区 */
        .cta-section {
            padding: 48px 0 64px;
        }
        .cta-card {
            background-color: var(--primary);
            border-radius: var(--radius-md);
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-md);
        }
        .cta-card__content {
            flex: 1;
            min-width: 280px;
        }
        .cta-card__title {
            font-size: 26px;
            font-weight: 800;
            color: #FFFFFF;
            line-height: 1.3;
            margin-bottom: 8px;
        }
        .cta-card__desc {
            font-size: 15px;
            color: #B7C9C2;
            line-height: 1.7;
        }
        .cta-card__btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background-color: var(--accent);
            color: var(--primary-dark);
            font-size: 15px;
            font-weight: 700;
            padding: 14px 28px;
            border-radius: var(--radius-pill);
            transition: background-color var(--transition), box-shadow var(--transition), transform var(--transition);
            text-decoration: none;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .cta-card__btn:hover {
            background-color: #E5FF5C;
            box-shadow: 0 4px 16px rgba(212, 244, 74, 0.3);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }
        .cta-card__note {
            font-size: 12px;
            color: #7A948A;
            margin-top: 12px;
        }

        /* 风险提示条 */
        .risk-note {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            background-color: #FFF4EF;
            border: 1px solid #FFD9CE;
            border-radius: var(--radius-sm);
            padding: 14px 18px;
            font-size: 13px;
            color: #B33A22;
            line-height: 1.6;
            margin-top: 20px;
        }
        .risk-note::before {
            content: '⚠';
            flex-shrink: 0;
            font-size: 16px;
        }

        /* 页脚 */
        .site-footer {
            background-color: var(--primary-dark);
            color: #E8F0EC;
            padding: 56px 0 0;
            margin-top: 48px;
        }
        .site-footer__grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .site-footer__brand h3 {
            font-size: 20px;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .site-footer__brand p {
            font-size: 13px;
            color: #9FB5AC;
            line-height: 1.8;
        }
        .site-footer__col h4 {
            font-size: 14px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .site-footer__col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .site-footer__col a {
            color: #9FB5AC;
            font-size: 13px;
            text-decoration: none;
            transition: color var(--transition);
        }
        .site-footer__col a:hover {
            color: var(--accent);
        }
        .site-footer__bottom {
            padding: 20px 0 28px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 12px;
            color: #7A948A;
        }
        .site-footer__bottom a {
            color: #9FB5AC;
            text-decoration: none;
        }
        .site-footer__bottom a:hover {
            color: var(--accent);
        }
        .site-footer__sep {
            margin: 0 4px;
            color: #4A5F57;
        }
        .site-footer__bottom span {
            white-space: nowrap;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 18px;
            }
            .main-nav__link {
                font-size: 14px;
            }
            .tools-grid {
                grid-template-columns: 1fr;
            }
            .tools-bottom-row {
                grid-template-columns: 1fr 1fr;
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer__grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .topbar__update {
                display: none;
            }
            .topbar__right {
                gap: 12px;
            }
            .topbar__link {
                font-size: 11px;
            }
            .site-header {
                height: 60px;
            }
            .main-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-nav {
                top: 96px;
            }
            .page-hero__title {
                font-size: 28px;
            }
            .page-hero__desc {
                font-size: 14px;
            }
            .tools-section__header {
                flex-direction: column;
                align-items: flex-start;
            }
            .tools-section__subtitle {
                text-align: left;
            }
            .tools-bottom-row {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .data-strip {
                grid-template-columns: 1fr 1fr;
                padding: 24px 20px;
            }
            .data-strip__value {
                font-size: 22px;
            }
            .cta-card {
                padding: 32px 24px;
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-card__btn {
                width: 100%;
                justify-content: center;
            }
            .site-footer__grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .site-footer__bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .tool-card {
                padding: 20px;
            }
            .tool-card--large .tool-card__image {
                aspect-ratio: 16/9;
            }
            .breadcrumb {
                padding-top: 16px;
                font-size: 12px;
            }
            .page-hero {
                padding: 32px 0 24px;
            }
            .tools-section {
                padding: 32px 0 48px;
            }
            .process-section {
                padding: 32px 0 48px;
            }
            .cta-section {
                padding: 32px 0 48px;
            }
        }
        @media (max-width: 520px) {
            .topbar__domain {
                font-size: 11px;
            }
            .topbar__right .topbar__link:nth-child(2),
            .topbar__right .topbar__link:nth-child(3) {
                display: none;
            }
            .page-hero__title {
                font-size: 24px;
            }
            .process-step__num {
                font-size: 28px;
            }
            .data-strip {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .data-strip__value {
                font-size: 20px;
            }
            .cta-card__title {
                font-size: 22px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #0F3D2E;
            --primary-dark: #0A2B20;
            --secondary: #1B5E48;
            --accent: #D4F44A;
            --danger: #FF5A3C;
            --bg: #F6F5F0;
            --card: #FFFFFF;
            --ink: #1A1D1A;
            --muted: #5A645C;
            --border: #E5E4DC;
            --blue-gray: #647D74;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-pill: 999px;
            --shadow-sm: 0 1px 3px rgba(15, 61, 46, 0.06);
            --shadow-md: 0 10px 24px rgba(15, 61, 46, 0.12);
            --transition: 200ms cubic-bezier(0.2, 0.7, 0.3, 1);
            --container: 1200px;
            --space-section: 96px;
        }
        @media (max-width: 768px) {
            :root {
                --space-section: 56px;
            }
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
            font-size: 16px;
            font-weight: 400;
            line-height: 1.75;
            color: var(--ink);
            background-color: var(--bg);
            min-height: 100vh;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ---- 顶部信息条 ---- */
        .topbar {
            background-color: var(--primary-dark);
            color: #E8F0EC;
            font-size: 12px;
            font-weight: 500;
            height: 36px;
            display: flex;
            align-items: center;
            position: relative;
            z-index: 1001;
        }
        .topbar__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .topbar__left {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .topbar__domain {
            color: var(--accent);
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .topbar__update {
            color: #B7C9C2;
        }
        .topbar__right {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .topbar__link {
            color: #E8F0EC;
            font-weight: 500;
            transition: color var(--transition);
        }
        .topbar__link:hover {
            color: var(--accent);
        }

        /* ---- 主导航 ---- */
        .site-header {
            background-color: var(--card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: 68px;
            display: flex;
            align-items: center;
            box-shadow: var(--shadow-sm);
        }
        .site-header__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
            gap: 24px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand__mark {
            width: 38px;
            height: 38px;
            background-color: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-weight: 800;
            font-size: 18px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .brand__text {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            margin: 0 auto;
        }
        .main-nav__link {
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            position: relative;
            padding: 6px 0;
            white-space: nowrap;
            transition: color var(--transition);
        }
        .main-nav__link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent);
            transition: width var(--transition);
        }
        .main-nav__link:hover::after,
        .main-nav__link.active::after {
            width: 100%;
        }
        .main-nav__link:hover {
            color: var(--primary);
        }
        .main-nav__link.active {
            color: var(--primary);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            background-color: var(--primary);
            color: var(--accent);
            font-size: 14px;
            font-weight: 700;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            transition: background-color var(--transition), box-shadow var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .header-cta:hover {
            background-color: var(--secondary);
            box-shadow: var(--shadow-md);
            color: var(--accent);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
            transition: transform var(--transition), opacity var(--transition);
        }
        @media (max-width: 1024px) {
            .main-nav {
                gap: 20px;
            }
            .header-cta {
                padding: 8px 16px;
                font-size: 13px;
            }
            .topbar__update {
                display: none;
            }
        }
        @media (max-width: 900px) {
            .main-nav {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                background-color: var(--card);
                flex-direction: column;
                gap: 0;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                transform: translateY(-120%);
                transition: transform 300ms cubic-bezier(0.2, 0.7, 0.3, 1);
                z-index: 999;
                margin: 0;
            }
            .main-nav.open {
                transform: translateY(0);
            }
            .main-nav__link {
                font-size: 18px;
                padding: 14px 0;
                border-bottom: 1px solid var(--border);
                width: 100%;
            }
            .main-nav__link:last-child {
                border-bottom: none;
            }
            .nav-toggle {
                display: flex;
            }
            .header-cta {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .topbar__left {
                gap: 8px;
            }
            .topbar__link {
                font-size: 11px;
            }
            .brand__text {
                font-size: 17px;
            }
            .brand__mark {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }
            .site-header {
                height: 60px;
            }
            .main-nav {
                top: 60px;
            }
        }

        /* ---- 面包屑 ---- */
        .breadcrumb {
            background-color: var(--bg);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
            font-size: 14px;
            color: var(--muted);
        }
        .breadcrumb__inner {
            display: flex;
            align-items: center;
            gap: 8px;
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .breadcrumb__link {
            color: var(--primary);
            font-weight: 600;
        }
        .breadcrumb__link:hover {
            text-decoration: underline;
        }
        .breadcrumb__sep {
            color: var(--border);
        }
        .breadcrumb__current {
            color: var(--muted);
            font-weight: 500;
        }

        /* ---- 页面标题区 ---- */
        .page-hero {
            background-color: var(--card);
            border-bottom: 1px solid var(--border);
            padding: 48px 0;
        }
        .page-hero__inner {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: flex-start;
            gap: 40px;
            flex-wrap: wrap;
        }
        .page-hero__text {
            flex: 1;
            min-width: 280px;
        }
        .page-hero__tag {
            display: inline-block;
            background-color: var(--primary);
            color: var(--accent);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            letter-spacing: 1px;
            margin-bottom: 16px;
        }
        .page-hero h1 {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--primary);
            margin: 0 0 16px 0;
            letter-spacing: 0.5px;
        }
        .page-hero__desc {
            font-size: 16px;
            color: var(--muted);
            max-width: 640px;
            line-height: 1.8;
            margin: 0;
        }
        .page-hero__image {
            flex-shrink: 0;
            width: 320px;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .page-hero__image img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        @media (max-width: 820px) {
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero__image {
                width: 100%;
            }
            .page-hero__image img {
                height: 160px;
            }
        }

        /* ---- 主体布局 ---- */
        .knowledge-layout {
            display: grid;
            grid-template-columns: 220px 1fr 280px;
            gap: 32px;
            padding: 48px 0 80px;
            align-items: start;
        }
        @media (max-width: 1100px) {
            .knowledge-layout {
                grid-template-columns: 200px 1fr;
            }
            .knowledge-layout__side {
                display: none;
            }
        }
        @media (max-width: 768px) {
            .knowledge-layout {
                grid-template-columns: 1fr;
                padding: 32px 0 56px;
            }
            .knowledge-layout__toc {
                display: none;
            }
        }

        /* ---- 章节目录 ---- */
        .toc-card {
            background-color: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            position: sticky;
            top: 100px;
            box-shadow: var(--shadow-sm);
        }
        .toc-card__title {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 1px;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border);
        }
        .toc-card__list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .toc-card__list a {
            font-size: 14px;
            color: var(--muted);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            display: block;
            line-height: 1.4;
        }
        .toc-card__list a:hover,
        .toc-card__list a:focus {
            background-color: var(--bg);
            color: var(--primary);
        }
        .toc-card__list a:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ---- 章节列表 ---- */
        .chapter-list {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .chapter-item {
            background-color: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px 30px;
            transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .chapter-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--secondary);
            transform: translateY(-2px);
        }
        .chapter-item__header {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            margin-bottom: 14px;
            flex-wrap: wrap;
        }
        .chapter-item__num {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            background-color: var(--primary);
            color: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 15px;
        }
        .chapter-item__title {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.35;
            margin: 0;
            flex: 1;
        }
        .chapter-item__tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--blue-gray);
            background-color: var(--bg);
            padding: 3px 12px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
        }
        .chapter-item__tag--hot {
            color: var(--danger);
            background-color: rgba(255, 90, 60, 0.08);
        }
        .chapter-item__summary {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .chapter-item__points {
            list-style: none;
            padding: 0;
            margin: 0 0 18px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
        }
        .chapter-item__points li {
            font-size: 13px;
            color: var(--blue-gray);
            padding-left: 18px;
            position: relative;
        }
        .chapter-item__points li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 6px;
            height: 6px;
            background-color: var(--accent);
            border-radius: 50%;
        }
        .chapter-item__readmore {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            padding: 4px 0;
            position: relative;
            transition: color var(--transition);
        }
        .chapter-item__readmore::after {
            content: '→';
            transition: transform var(--transition);
        }
        .chapter-item__readmore:hover {
            color: var(--secondary);
        }
        .chapter-item__readmore:hover::after {
            transform: translateX(4px);
        }
        .chapter-item__readmore:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ---- 风险提示卡 ---- */
        .risk-card {
            background-color: var(--primary-dark);
            border-radius: var(--radius-md);
            padding: 24px;
            color: #E8F0EC;
            position: sticky;
            top: 100px;
            box-shadow: var(--shadow-md);
            border: 1px solid rgba(212, 244, 74, 0.15);
        }
        .risk-card__icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background-color: rgba(255, 90, 60, 0.15);
            border-radius: 50%;
            margin-bottom: 14px;
            color: var(--danger);
            font-size: 20px;
            font-weight: 800;
        }
        .risk-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--accent);
            margin: 0 0 12px 0;
            line-height: 1.3;
        }
        .risk-card p {
            font-size: 13px;
            line-height: 1.8;
            color: #B7C9C2;
            margin-bottom: 14px;
        }
        .risk-card__list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .risk-card__list li {
            font-size: 13px;
            color: #B7C9C2;
            padding-left: 16px;
            position: relative;
            line-height: 1.5;
        }
        .risk-card__list li::before {
            content: '!';
            position: absolute;
            left: 0;
            top: 0;
            color: var(--danger);
            font-weight: 700;
            font-size: 13px;
        }
        .risk-card__divider {
            height: 1px;
            background-color: rgba(255, 255, 255, 0.1);
            margin: 16px 0;
        }
        .risk-card__cta {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: color var(--transition);
        }
        .risk-card__cta:hover {
            color: #FFF;
        }

        /* ---- CTA订阅区 ---- */
        .subscribe-section {
            background-color: var(--primary);
            padding: 64px 0;
            margin-top: 0;
        }
        .subscribe-section__inner {
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }
        .subscribe-section__text {
            flex: 1;
            min-width: 280px;
        }
        .subscribe-section__text h2 {
            font-size: 28px;
            font-weight: 800;
            color: #FFF;
            margin: 0 0 8px 0;
            line-height: 1.25;
        }
        .subscribe-section__text p {
            font-size: 15px;
            color: #B7C9C2;
            margin: 0;
            line-height: 1.7;
        }
        .subscribe-section__form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            flex-shrink: 0;
        }
        .subscribe-section__input {
            background-color: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-pill);
            padding: 12px 20px;
            color: #FFF;
            font-size: 14px;
            min-width: 240px;
            transition: border-color var(--transition), background-color var(--transition);
        }
        .subscribe-section__input::placeholder {
            color: #B7C9C2;
        }
        .subscribe-section__input:focus {
            border-color: var(--accent);
            background-color: rgba(255, 255, 255, 0.18);
            outline: none;
        }
        .subscribe-section__btn {
            background-color: var(--accent);
            color: var(--primary);
            font-size: 14px;
            font-weight: 700;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            transition: background-color var(--transition), transform var(--transition);
            white-space: nowrap;
        }
        .subscribe-section__btn:hover {
            background-color: #E5FF5C;
            transform: translateY(-1px);
        }
        .subscribe-section__btn:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .subscribe-section__note {
            font-size: 12px;
            color: #B7C9C2;
            margin-top: 16px;
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .subscribe-section__input {
                min-width: 100%;
            }
            .subscribe-section__form {
                width: 100%;
            }
            .subscribe-section__btn {
                width: 100%;
            }
        }

        /* ---- 页脚 ---- */
        .site-footer {
            background-color: var(--primary-dark);
            color: #B7C9C2;
            padding: 56px 0 28px;
            font-size: 14px;
        }
        .site-footer__grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .site-footer__brand h3 {
            font-size: 20px;
            font-weight: 800;
            color: var(--accent);
            margin: 0 0 12px 0;
            letter-spacing: 0.5px;
        }
        .site-footer__brand p {
            font-size: 13px;
            line-height: 1.8;
            margin: 0;
        }
        .site-footer__col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #FFF;
            margin: 0 0 14px 0;
            letter-spacing: 0.5px;
        }
        .site-footer__col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .site-footer__col a {
            font-size: 13px;
            color: #B7C9C2;
            transition: color var(--transition);
        }
        .site-footer__col a:hover {
            color: var(--accent);
        }
        .site-footer__bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            font-size: 12px;
            color: #889C94;
            align-items: center;
        }
        .site-footer__sep {
            color: #889C94;
            margin: 0 4px;
        }
        .site-footer__bottom a {
            color: #B7C9C2;
        }
        .site-footer__bottom a:hover {
            color: var(--accent);
        }
        @media (max-width: 1024px) {
            .site-footer__grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 520px) {
            .site-footer__grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer__bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }

        /* ---- 移动端覆盖层菜单 ---- */
        .nav-overlay {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: rgba(10, 43, 32, 0.5);
            z-index: 998;
        }
        .nav-overlay.open {
            display: block;
        }
        @media (max-width: 520px) {
            .nav-overlay {
                top: 60px;
            }
        }