/* roulang page: index */
/* ===== 设计变量 ===== */
    :root {
        --primary: #2E6E9E;
        --primary-hover: #245A7A;
        --primary-light: #EEF4F8;
        --accent: #E8862E;
        --accent-hover: #d97a20;
        --bg: #F5F8FA;
        --card-bg: #FFFFFF;
        --text: #1F2A36;
        --text-secondary: #5B6B7A;
        --text-muted: #8CA0B0;
        --border: #E4EBF0;
        --dark-block: #245A7A;
        --footer-bg: #1F2A36;
        --radius: 12px;
        --radius-btn: 8px;
        --shadow: 0 2px 12px rgba(31,42,54,0.06);
        --shadow-hover: 0 6px 20px rgba(31,42,54,0.12);
        --shadow-accent: 0 4px 12px rgba(46,110,158,0.25);
        --transition: all 0.25s ease;
        --font-main: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
    }

    /* ===== 基础 Reset / Base ===== */
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: var(--font-main);
        font-size: 16px;
        line-height: 1.7;
        color: var(--text);
        background-color: var(--bg);
        -webkit-font-smoothing: antialiased;
        overflow-x: hidden;
    }
    a {
        text-decoration: none;
        color: var(--primary);
        transition: var(--transition);
    }
    a:hover {
        color: var(--primary-hover);
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    button,
    input,
    select,
    textarea {
        font-family: inherit;
    }
    ul,
    ol {
        list-style: none;
    }
    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
        font-weight: 700;
        line-height: 1.4;
        color: var(--text);
    }
    .container-xxl {
        max-width: 1320px;
        padding-left: 24px;
        padding-right: 24px;
    }

    /* ===== 通用组件 ===== */
    .btn {
        border-radius: var(--radius-btn);
        font-weight: 500;
        padding: 10px 24px;
        transition: var(--transition);
        font-size: 15px;
    }
    .btn-primary-custom {
        background: var(--primary);
        color: #fff;
        box-shadow: var(--shadow-accent);
        border: 1px solid var(--primary);
    }
    .btn-primary-custom:hover {
        background: var(--primary-hover);
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 6px 18px rgba(46,110,158,0.35);
    }
    .btn-accent-custom {
        background: var(--accent);
        color: #fff;
        border: 1px solid var(--accent);
        box-shadow: 0 4px 12px rgba(232,134,46,0.3);
    }
    .btn-accent-custom:hover {
        background: var(--accent-hover);
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 6px 18px rgba(232,134,46,0.4);
    }
    .btn-outline-light-custom {
        background: transparent;
        color: #fff;
        border: 1px solid rgba(255,255,255,0.7);
    }
    .btn-outline-light-custom:hover {
        background: #fff;
        color: var(--primary);
        transform: translateY(-2px);
    }
    .btn-outline-primary-custom {
        background: transparent;
        color: var(--primary);
        border: 1px solid var(--primary);
    }
    .btn-outline-primary-custom:hover {
        background: var(--primary);
        color: #fff;
        transform: translateY(-2px);
        box-shadow: var(--shadow-accent);
    }
    .badge-custom {
        display: inline-block;
        padding: 4px 14px;
        border-radius: 20px;
        font-size: 13px;
        font-weight: 500;
        background: var(--primary-light);
        color: var(--primary);
    }
    .badge-accent {
        display: inline-block;
        padding: 4px 14px;
        border-radius: 20px;
        font-size: 13px;
        font-weight: 500;
        background: rgba(232,134,46,0.12);
        color: var(--accent);
    }
    .badge-white {
        display: inline-block;
        padding: 4px 14px;
        border-radius: 20px;
        font-size: 13px;
        font-weight: 500;
        background: rgba(255,255,255,0.15);
        color: #fff;
    }
    .section-padding {
        padding: 64px 0;
    }
    .section-title {
        font-size: 30px;
        font-weight: 700;
        margin-bottom: 12px;
        letter-spacing: -0.02em;
        position: relative;
    }
    .section-subtitle {
        color: var(--text-secondary);
        font-size: 15px;
        max-width: 640px;
        line-height: 1.7;
        margin-bottom: 40px;
    }
    .text-accent {
        color: var(--accent) !important;
    }
    .text-primary-custom {
        color: var(--primary) !important;
    }
    .section-head-wrap {
        display: flex;
        justify-content: space-between;
        align-items: flex-end;
        gap: 16px;
        margin-bottom: 40px;
        flex-wrap: wrap;
    }
    .section-head-wrap .section-title,
    .section-head-wrap .section-subtitle {
        margin-bottom: 0;
    }

    /* ===== 导航 ===== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 999;
    }
    .header-brand-bar {
        background: #fff;
        border-bottom: 1px solid var(--border);
        padding: 12px 0;
    }
    .header-brand-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        flex-wrap: wrap;
    }
    .brand-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 22px;
        font-weight: 700;
        color: var(--text);
        line-height: 1.2;
    }
    .brand-logo .logo-mark {
        width: 38px;
        height: 38px;
        border-radius: 10px;
        background: var(--primary);
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-size: 18px;
        flex-shrink: 0;
    }
    .brand-logo span {
        color: var(--primary);
    }
    .header-right-actions {
        display: flex;
        align-items: center;
        gap: 16px;
    }
    .header-hotline {
        display: flex;
        align-items: center;
        gap: 8px;
        color: var(--text-secondary);
        font-size: 14px;
    }
    .header-hotline i {
        color: var(--primary);
        font-size: 16px;
    }
    .header-hotline a {
        color: var(--text);
        font-weight: 600;
    }
    .header-hotline a:hover {
        color: var(--primary);
    }
    .header-brand-bar .btn {
        padding: 8px 22px;
        font-size: 14px;
    }
    .header-channel-bar {
        background: var(--primary-light);
        border-bottom: 1px solid var(--border);
        padding: 10px 0;
    }
    .header-channel-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
    }
    .channel-nav-list {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-wrap: wrap;
    }
    .channel-nav-list .nav-link-item {
        display: inline-block;
        padding: 6px 18px;
        border-radius: 20px;
        font-size: 14px;
        font-weight: 500;
        color: var(--text-secondary);
        background: transparent;
        transition: var(--transition);
        border: 1px solid transparent;
    }
    .channel-nav-list .nav-link-item:hover {
        color: var(--primary);
        background: rgba(255,255,255,0.8);
        border-color: rgba(46,110,158,0.2);
    }
    .channel-nav-list .nav-link-item.active {
        background: var(--primary);
        color: #fff;
        box-shadow: 0 2px 8px rgba(46,110,158,0.3);
        border-color: var(--primary);
    }
    .channel-toolbar {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .navbar-toggler-custom {
        background: transparent;
        border: 1px solid rgba(46,110,158,0.3);
        border-radius: 8px;
        padding: 6px 12px;
        color: var(--primary);
        font-size: 18px;
        display: none;
        cursor: pointer;
    }

    /* 移动端抽屉导航 */
    .mobile-side-drawer {
        position: fixed;
        top: 0;
        right: -300px;
        width: 280px;
        height: 100vh;
        background: #fff;
        z-index: 1100;
        transition: right 0.3s ease;
        box-shadow: -4px 0 20px rgba(31,42,54,0.1);
        padding: 32px 24px;
        display: flex;
        flex-direction: column;
        gap: 8px;
    }
    .mobile-side-drawer.open {
        right: 0;
    }
    .mobile-side-drawer .drawer-close {
        position: absolute;
        top: 16px;
        right: 16px;
        background: none;
        border: none;
        font-size: 20px;
        color: var(--text-secondary);
        cursor: pointer;
    }
    .mobile-side-drawer .drawer-logo {
        font-size: 18px;
        font-weight: 700;
        color: var(--text);
        margin-bottom: 20px;
        padding-bottom: 16px;
        border-bottom: 1px solid var(--border);
    }
    .mobile-side-drawer .drawer-link {
        display: block;
        padding: 10px 12px;
        border-radius: 8px;
        color: var(--text-secondary);
        font-size: 15px;
        font-weight: 500;
    }
    .mobile-side-drawer .drawer-link:hover,
    .mobile-side-drawer .drawer-link.active {
        background: var(--primary-light);
        color: var(--primary);
    }
    .body-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(31,42,54,0.5);
        z-index: 1050;
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    .body-overlay.show {
        opacity: 1;
        visibility: visible;
    }

    /* ===== Hero ===== */
    .hero-section {
        position: relative;
        background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
        padding: 80px 0 80px;
        z-index: 1;
    }
    .hero-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: rgba(31,42,54,0.5);
        z-index: -1;
    }
    .hero-content {
        max-width: 720px;
    }
    .hero-badge {
        display: inline-block;
        background: rgba(255,255,255,0.15);
        border: 1px solid rgba(255,255,255,0.25);
        padding: 6px 18px;
        border-radius: 20px;
        font-size: 13px;
        font-weight: 500;
        color: #fff;
        margin-bottom: 20px;
        backdrop-filter: none;
    }
    .hero-title {
        font-size: 42px;
        font-weight: 800;
        line-height: 1.25;
        color: #fff;
        margin-bottom: 20px;
        letter-spacing: -0.02em;
    }
    .hero-title .highlight {
        color: #FFD9A0;
        position: relative;
    }
    .hero-subtitle {
        font-size: 18px;
        line-height: 1.6;
        color: rgba(255,255,255,0.85);
        margin-bottom: 32px;
        max-width: 560px;
    }
    .hero-cta-group {
        display: flex;
        gap: 16px;
        flex-wrap: wrap;
        margin-bottom: 24px;
    }
    .hero-trust-row {
        display: flex;
        align-items: center;
        gap: 20px;
        color: rgba(255,255,255,0.7);
        font-size: 14px;
        flex-wrap: wrap;
    }
    .hero-trust-row i {
        margin-right: 4px;
        font-size: 15px;
    }

    /* ===== 核心卖点 / 优惠阶梯 ===== */
    .tier-section {
        background: var(--bg);
        padding: 64px 0;
    }
    .tier-card {
        background: var(--card-bg);
        border-radius: var(--radius);
        padding: 32px 28px;
        box-shadow: var(--shadow);
        transition: var(--transition);
        border: 1px solid var(--border);
        position: relative;
        height: 100%;
        display: flex;
        flex-direction: column;
    }
    .tier-card:hover {
        box-shadow: var(--shadow-hover);
        transform: translateY(-4px);
    }
    .tier-card.recommended {
        border: 2px solid var(--accent);
        box-shadow: 0 8px 30px rgba(232,134,46,0.15);
        transform: translateY(-8px);
    }
    .tier-card.recommended:hover {
        transform: translateY(-10px);
        box-shadow: 0 12px 32px rgba(232,134,46,0.2);
    }
    .tier-recommend-badge {
        position: absolute;
        top: -12px;
        left: 50%;
        transform: translateX(-50%);
        background: var(--accent);
        color: #fff;
        font-size: 13px;
        font-weight: 600;
        padding: 4px 20px;
        border-radius: 20px;
        box-shadow: 0 2px 8px rgba(232,134,46,0.3);
        white-space: nowrap;
    }
    .tier-name {
        font-size: 16px;
        font-weight: 600;
        color: var(--text-secondary);
        margin-bottom: 12px;
    }
    .tier-price-wrap {
        margin-bottom: 20px;
        padding-bottom: 20px;
        border-bottom: 1px solid var(--border);
    }
    .tier-price {
        font-size: 36px;
        font-weight: 700;
        color: var(--primary);
        line-height: 1.1;
    }
    .tier-price .symbol {
        font-size: 20px;
        vertical-align: top;
        margin-right: 2px;
    }
    .tier-price .unit {
        font-size: 14px;
        font-weight: 400;
        color: var(--text-muted);
        margin-left: 4px;
    }
    .tier-desc {
        font-size: 13px;
        color: var(--text-muted);
        margin-top: 4px;
    }
    .tier-features {
        flex: 1;
        margin-bottom: 24px;
    }
    .tier-features li {
        display: flex;
        align-items: flex-start;
        gap: 8px;
        padding: 7px 0;
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.6;
    }
    .tier-features li i {
        color: var(--primary);
        font-size: 14px;
        margin-top: 3px;
    }
    .tier-features li .disabled {
        color: var(--text-muted);
    }
    .tier-card .btn {
        width: 100%;
    }

    /* ===== 套餐对比 ===== */
    .compare-section {
        background: #fff;
        padding: 64px 0;
    }
    .compare-card-wrap {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    .compare-card {
        background: var(--bg);
        border-radius: var(--radius);
        padding: 36px 32px;
        border: 1px solid var(--border);
        transition: var(--transition);
        position: relative;
        display: flex;
        flex-direction: column;
    }
    .compare-card:hover {
        box-shadow: var(--shadow-hover);
    }
    .compare-card.highlight {
        background: #fff;
        border: 2px solid var(--primary);
        box-shadow: 0 8px 30px rgba(46,110,158,0.12);
    }
    .compare-card .compare-flag {
        position: absolute;
        top: -12px;
        right: 24px;
        background: var(--primary);
        color: #fff;
        font-size: 12px;
        font-weight: 600;
        padding: 4px 16px;
        border-radius: 20px;
    }
    .compare-card .compare-flag.accent {
        background: var(--accent);
    }
    .compare-card-title {
        font-size: 22px;
        font-weight: 700;
        margin-bottom: 6px;
    }
    .compare-card-desc {
        font-size: 14px;
        color: var(--text-secondary);
        margin-bottom: 24px;
    }
    .compare-card-price {
        font-size: 32px;
        font-weight: 700;
        color: var(--primary);
        margin-bottom: 24px;
    }
    .compare-card-price span {
        font-size: 14px;
        font-weight: 400;
        color: var(--text-muted);
    }
    .compare-feature-list {
        flex: 1;
        margin-bottom: 28px;
    }
    .compare-feature-list li {
        display: flex;
        align-items: flex-start;
        gap: 8px;
        padding: 8px 0;
        font-size: 14px;
        color: var(--text-secondary);
        border-bottom: 1px dashed var(--border);
    }
    .compare-feature-list li:last-child {
        border-bottom: none;
    }
    .compare-feature-list li i.fa-check {
        color: var(--primary);
    }
    .compare-feature-list li i.fa-upgrade {
        color: var(--accent);
    }
    .compare-feature-list li .upgrade-mark {
        color: var(--accent);
        font-size: 12px;
        font-weight: 600;
        margin-left: 4px;
    }
    .compare-card .btn {
        width: 100%;
    }

    /* ===== 限时入口 ===== */
    .promo-banner-section {
        background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
        position: relative;
        padding: 72px 0;
        z-index: 1;
    }
    .promo-banner-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: rgba(36,90,122,0.92);
        z-index: -1;
    }
    .promo-banner-inner {
        text-align: center;
        max-width: 680px;
        margin: 0 auto;
    }
    .promo-eyebrow {
        display: inline-block;
        color: #FFD9A0;
        font-size: 14px;
        font-weight: 600;
        letter-spacing: 0.04em;
        margin-bottom: 12px;
        background: rgba(255,255,255,0.08);
        padding: 4px 18px;
        border-radius: 20px;
    }
    .promo-title {
        color: #fff;
        font-size: 30px;
        font-weight: 700;
        margin-bottom: 16px;
        line-height: 1.3;
    }
    .promo-subtitle {
        color: rgba(255,255,255,0.8);
        font-size: 15px;
        margin-bottom: 28px;
    }
    .countdown-box {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 12px;
        margin-bottom: 28px;
        font-size: 14px;
        color: rgba(255,255,255,0.7);
    }
    .countdown-box .countdown-item {
        background: rgba(255,255,255,0.1);
        border: 1px solid rgba(255,255,255,0.1);
        border-radius: 10px;
        padding: 12px 16px;
        text-align: center;
        min-width: 72px;
    }
    .countdown-box .countdown-item .num {
        font-size: 26px;
        font-weight: 700;
        color: #fff;
        font-variant-numeric: tabular-nums;
        line-height: 1.2;
        font-family: "SF Mono", "Roboto Mono", monospace;
    }
    .countdown-box .countdown-item .label {
        font-size: 12px;
        color: rgba(255,255,255,0.6);
        margin-top: 2px;
    }
    .countdown-box .sep {
        font-size: 20px;
        color: rgba(255,255,255,0.4);
        font-weight: 600;
    }
    .promo-banner-inner .btn {
        padding: 12px 36px;
        font-size: 16px;
    }

    /* ===== 资讯列表 ===== */
    .news-section {
        background: var(--bg);
        padding: 64px 0;
    }
    .news-list-wrap {
        display: flex;
        flex-direction: column;
        gap: 16px;
    }
    .news-card-item {
        background: var(--card-bg);
        border-radius: var(--radius);
        box-shadow: var(--shadow);
        border: 1px solid transparent;
        padding: 20px 24px;
        transition: var(--transition);
        display: flex;
        align-items: center;
        gap: 20px;
    }
    .news-card-item:hover {
        box-shadow: var(--shadow-hover);
        border-color: rgba(46,110,158,0.15);
    }
    .news-card-item .news-tag {
        flex-shrink: 0;
        min-width: 80px;
        text-align: center;
    }
    .news-card-item .news-content {
        flex: 1;
        min-width: 0;
    }
    .news-card-item .news-title {
        font-size: 16px;
        font-weight: 600;
        color: var(--text);
        margin-bottom: 4px;
        transition: var(--transition);
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    .news-card-item:hover .news-title {
        color: var(--primary);
    }
    .news-card-item .news-summary {
        font-size: 13px;
        color: var(--text-secondary);
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        line-height: 1.6;
    }
    .news-meta {
        display: flex;
        align-items: center;
        gap: 12px;
        margin-top: 8px;
        font-size: 12px;
        color: var(--text-muted);
    }
    .news-meta .dot {
        width: 3px;
        height: 3px;
        border-radius: 50%;
        background: var(--text-muted);
    }
    .news-meta .badge-custom,
    .news-meta .badge-accent {
        font-size: 12px;
        padding: 2px 10px;
    }
    .news-card-item .news-arrow {
        color: var(--text-muted);
        font-size: 18px;
        flex-shrink: 0;
        transition: var(--transition);
    }
    .news-card-item:hover .news-arrow {
        color: var(--primary);
        transform: translateX(4px);
    }
    .news-empty-state {
        background: var(--card-bg);
        border-radius: var(--radius);
        padding: 48px 24px;
        text-align: center;
        border: 1px dashed var(--border);
        color: var(--text-muted);
        font-size: 15px;
    }
    .news-empty-state i {
        font-size: 32px;
        color: var(--text-muted);
        opacity: 0.4;
        display: block;
        margin-bottom: 12px;
    }

    /* ===== 咨询表单 ===== */
    .contact-section {
        background: #fff;
        padding: 64px 0;
    }
    .contact-card {
        background: var(--card-bg);
        border-radius: var(--radius);
        box-shadow: var(--shadow);
        border: 1px solid var(--border);
        padding: 40px;
        max-width: 720px;
        margin: 0 auto;
    }
    .contact-card .form-title {
        font-size: 24px;
        font-weight: 700;
        margin-bottom: 4px;
        text-align: center;
    }
    .contact-card .form-subtitle {
        text-align: center;
        font-size: 13px;
        color: var(--text-muted);
        margin-bottom: 32px;
    }
    .form-label-custom {
        font-size: 14px;
        font-weight: 500;
        color: var(--text);
        margin-bottom: 6px;
    }
    .form-control-custom {
        width: 100%;
        border: 1px solid var(--border);
        border-radius: var(--radius-btn);
        padding: 12px 16px;
        font-size: 14px;
        color: var(--text);
        transition: var(--transition);
        background: var(--bg);
    }
    .form-control-custom:focus {
        outline: none;
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(46,110,158,0.15);
        background: #fff;
    }
    textarea.form-control-custom {
        resize: vertical;
        min-height: 120px;
    }
    .form-select-custom {
        width: 100%;
        border: 1px solid var(--border);
        border-radius: var(--radius-btn);
        padding: 12px 16px;
        font-size: 14px;
        color: var(--text);
        background: var(--bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M6 8L0 0h12z' fill='%238CA0B0'/%3E%3C/svg%3E") no-repeat right 16px center;
        appearance: none;
        -webkit-appearance: none;
        cursor: pointer;
        transition: var(--transition);
    }
    .form-select-custom:focus {
        outline: none;
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(46,110,158,0.15);
        background-color: #fff;
    }
    .contact-card .btn-submit {
        width: 240px;
        max-width: 100%;
        margin-top: 8px;
        text-align: center;
    }
    .submit-center {
        text-align: center;
    }
    .form-hint {
        font-size: 12px;
        color: var(--text-muted);
        margin-top: 12px;
        text-align: center;
    }

    /* ===== FAQ ===== */
    .faq-section {
        background: var(--bg);
        padding: 64px 0;
    }
    .faq-wrap {
        max-width: 860px;
        margin: 0 auto;
    }
    .faq-item {
        background: var(--card-bg);
        border: 1px solid var(--border);
        border-radius: 10px;
        margin-bottom: 12px;
        overflow: hidden;
        transition: var(--transition);
    }
    .faq-item:last-child {
        margin-bottom: 0;
    }
    .faq-item .faq-header {
        width: 100%;
        background: transparent;
        border: none;
        padding: 18px 24px;
        font-size: 15px;
        font-weight: 600;
        color: var(--text);
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        cursor: pointer;
        text-align: left;
        transition: var(--transition);
        border-radius: 0;
    }
    .faq-item .faq-header:hover {
        color: var(--primary);
    }
    .faq-item .faq-header .faq-icon {
        width: 22px;
        height: 22px;
        border-radius: 50%;
        background: var(--primary-light);
        color: var(--primary);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        font-weight: 400;
        flex-shrink: 0;
        transition: var(--transition);
    }
    .faq-item.open .faq-icon {
        background: var(--accent);
        color: #fff;
        transform: rotate(45deg);
    }
    .faq-item .faq-body {
        padding: 0 24px 20px;
        color: var(--text-secondary);
        font-size: 14px;
        line-height: 1.7;
        display: none;
    }
    .faq-item.open .faq-body {
        display: block;
    }

    /* ===== CTA 区块 ===== */
    .cta-section {
        background: var(--dark-block);
        padding: 48px 0;
        position: relative;
    }
    .cta-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
        flex-wrap: wrap;
    }
    .cta-text h3 {
        color: #fff;
        font-size: 22px;
        margin-bottom: 4px;
    }
    .cta-text p {
        color: rgba(255,255,255,0.7);
        font-size: 14px;
        margin: 0;
    }

    /* ===== 页脚 ===== */
    .site-footer {
        background: var(--footer-bg);
        padding: 48px 0 24px;
        color: rgba(255,255,255,0.7);
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr;
        gap: 40px;
        margin-bottom: 40px;
    }
    .footer-brand .footer-logo {
        font-size: 20px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 10px;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .footer-brand .footer-logo i {
        color: var(--accent);
    }
    .footer-brand p {
        font-size: 13px;
        line-height: 1.7;
        max-width: 320px;
    }
    .footer-col-title {
        color: #fff;
        font-size: 15px;
        font-weight: 600;
        margin-bottom: 16px;
    }
    .footer-links {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .footer-links a {
        color: rgba(255,255,255,0.6);
        font-size: 14px;
        transition: var(--transition);
    }
    .footer-links a:hover {
        color: var(--accent);
        padding-left: 4px;
    }
    .footer-contact-item {
        display: flex;
        align-items: flex-start;
        gap: 10px;
        font-size: 14px;
        color: rgba(255,255,255,0.6);
        margin-bottom: 12px;
    }
    .footer-contact-item i {
        color: var(--accent);
        font-size: 15px;
        margin-top: 2px;
    }
    .footer-bottom {
        border-top: 1px solid rgba(255,255,255,0.1);
        padding-top: 20px;
        font-size: 12px;
        color: rgba(255,255,255,0.4);
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 12px;
        flex-wrap: wrap;
    }

    /* ===== 响应式 ===== */
    @media (max-width: 991.98px) {
        .section-padding {
            padding: 48px 0;
        }
        .section-title {
            font-size: 26px;
        }
        .hero-title {
            font-size: 34px;
        }
        .hero-section {
            padding: 60px 0;
        }
        .channel-nav-list {
            display: none;
        }
        .navbar-toggler-custom {
            display: inline-block;
        }
        .compare-card-wrap {
            grid-template-columns: 1fr;
            gap: 24px;
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .header-hotline {
            display: none;
        }
        .cta-inner {
            flex-direction: column;
            text-align: center;
        }
    }
    @media (max-width: 767.98px) {
        .container-xxl {
            padding-left: 16px;
            padding-right: 16px;
        }
        .section-title {
            font-size: 22px;
        }
        .section-subtitle {
            font-size: 14px;
            line-height: 1.6;
        }
        .hero-title {
            font-size: 28px;
        }
        .hero-subtitle {
            font-size: 15px;
        }
        .hero-section {
            padding: 48px 0;
        }
        .hero-cta-group .btn {
            width: 100%;
            max-width: 90%;
            margin: 0 auto;
        }
        .hero-cta-group {
            flex-direction: column;
            align-items: center;
        }
        .tier-card.recommended {
            transform: translateY(-4px);
        }
        .countdown-box {
            flex-wrap: wrap;
            gap: 8px;
        }
        .countdown-box .countdown-item {
            min-width: 60px;
            padding: 10px 12px;
        }
        .countdown-box .countdown-item .num {
            font-size: 20px;
        }
        .promo-title {
            font-size: 24px;
        }
        .news-card-item {
            flex-direction: column;
            align-items: flex-start;
            gap: 12px;
            padding: 16px;
        }
        .news-card-item .news-tag {
            min-width: auto;
        }
        .news-meta {
            flex-wrap: wrap;
        }
        .contact-card {
            padding: 24px 20px;
        }
        .contact-card .btn-submit {
            width: 100%;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 28px;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
        .header-brand-row {
            padding: 8px 0;
        }
        .brand-logo {
            font-size: 19px;
        }
        .brand-logo .logo-mark {
            width: 32px;
            height: 32px;
            font-size: 15px;
        }
    }

/* roulang page: article */
:root {
            --primary: #2E6E9E;
            --primary-dark: #245A7A;
            --accent: #E8862E;
            --bg: #F5F8FA;
            --card-bg: #FFFFFF;
            --text: #1F2A36;
            --text-secondary: #5B6B7A;
            --text-muted: #8CA0B0;
            --border: #E4EBF0;
            --channel-bg: #EEF4F8;
            --dark-block: #1F2A36;
            --shadow-sm: 0 2px 12px rgba(31, 42, 54, 0.06);
            --shadow-md: 0 6px 20px rgba(31, 42, 54, 0.12);
            --shadow-primary: 0 4px 14px rgba(46, 110, 158, 0.25);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: var(--primary);
            transition: color 0.2s ease;
        }

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

        .container-xxl {
            max-width: 1320px;
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }

        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 0 rgba(31, 42, 54, 0.02);
            position: sticky;
            top: 0;
            z-index: 1050;
        }

        .brand-bar {
            background: #fff;
        }

        .brand-bar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 16px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

        .brand-logo i {
            font-size: 26px;
            color: var(--primary);
        }

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

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

        .header-phone {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .header-phone i {
            color: var(--primary);
            font-size: 15px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            font-weight: 600;
            border: none;
            transition: all 0.25s ease;
            font-family: var(--font-family);
            padding: 11px 24px;
            font-size: 15px;
            line-height: 1.4;
            cursor: pointer;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(46, 110, 158, 0.35);
        }

        .btn-primary:focus-visible,
        .btn-accent:focus-visible {
            outline: 3px solid rgba(46, 110, 158, 0.35);
            outline-offset: 2px;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 12px rgba(232, 134, 46, 0.3);
        }

        .btn-accent:hover {
            background: #d9771f;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(232, 134, 46, 0.4);
        }

        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.8);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: #fff;
            color: var(--primary-dark);
            transform: translateY(-2px);
        }

        .header-cta {
            padding: 9px 20px;
            font-size: 14px;
        }

        .channel-bar {
            background: var(--channel-bg);
            border-top: 1px solid #e4ebf0;
        }

        .channel-nav-list {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 0;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .channel-nav-list::-webkit-scrollbar {
            display: none;
        }

        .nav-link-item {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid transparent;
            white-space: nowrap;
            transition: all 0.2s ease;
        }

        .nav-link-item:hover {
            background: rgba(46, 110, 158, 0.08);
            color: var(--primary);
            border-color: rgba(46, 110, 158, 0.2);
        }

        .nav-link-item.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(46, 110, 158, 0.25);
        }

        .main-wrap {
            min-height: 60vh;
        }

        .breadcrumb-bar {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }

        .breadcrumb-list {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            margin: 0;
            padding: 0;
            list-style: none;
            font-size: 13px;
            color: var(--text-muted);
        }

        .breadcrumb-list a {
            color: var(--text-secondary);
            font-weight: 500;
        }

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

        .breadcrumb-list .separator {
            font-size: 10px;
            color: #c1cfd8;
        }

        .breadcrumb-list .current {
            color: var(--text);
            font-weight: 600;
            max-width: 320px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .article-section {
            padding: 48px 0 56px;
        }

        .article-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 48px;
            border: 1px solid rgba(228, 235, 240, 0.7);
        }

        .article-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text);
            margin: 0 0 18px;
            letter-spacing: 0.2px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 18px;
            padding-bottom: 20px;
            margin-bottom: 28px;
            border-bottom: 1px solid var(--border);
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .meta-item i {
            color: var(--primary);
            font-size: 12px;
        }

        .meta-category {
            background: rgba(46, 110, 158, 0.1);
            color: var(--primary);
            padding: 3px 12px;
            border-radius: 20px;
            font-weight: 500;
            font-size: 12px;
        }

        .article-body {
            max-width: 720px;
            margin: 0 auto;
            font-size: 16px;
            line-height: 1.8;
            color: #2a3542;
        }

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

        .article-body h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin: 40px 0 16px;
            padding-left: 14px;
            border-left: 4px solid var(--primary);
            line-height: 1.4;
        }

        .article-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin: 28px 0 12px;
            line-height: 1.5;
        }

        .article-body h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin: 24px 0 10px;
        }

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

        .article-body li {
            margin-bottom: 8px;
            line-height: 1.8;
        }

        .article-body li::marker {
            color: var(--primary);
        }

        .article-body blockquote {
            background: #f0f6fa;
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            padding: 16px 22px;
            margin: 24px 0;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }

        .article-body img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-sm);
            margin: 24px 0;
            box-shadow: var(--shadow-sm);
        }

        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-color: rgba(46, 110, 158, 0.4);
        }

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

        .article-body table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin: 24px 0;
            overflow: hidden;
        }

        .article-body table th {
            background: var(--channel-bg);
            padding: 12px 16px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            border-bottom: 1px solid var(--border);
        }

        .article-body table td {
            padding: 12px 16px;
            font-size: 14px;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border);
            background: #fff;
        }

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

        .article-not-found {
            padding: 80px 24px;
            display: flex;
            justify-content: center;
        }

        .nf-card {
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 56px 48px;
            text-align: center;
            max-width: 520px;
            width: 100%;
        }

        .nf-card i {
            font-size: 40px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .nf-card h2 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text);
        }

        .nf-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .related-section {
            padding: 48px 0 56px;
            background: #fff;
            border-top: 1px solid var(--border);
        }

        .section-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
            gap: 16px;
        }

        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin: 0;
            letter-spacing: 0.3px;
            position: relative;
            padding-left: 16px;
        }

        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 6px;
            bottom: 6px;
            width: 4px;
            background: var(--accent);
            border-radius: 4px;
        }

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

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

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

        .related-card {
            background: var(--bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            height: 100%;
        }

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

        .related-card-img {
            aspect-ratio: 16 / 9;
            width: 100%;
            object-fit: cover;
            background: var(--border);
        }

        .related-card-body {
            padding: 18px 20px 22px;
        }

        .related-card-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

        .related-card-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

        .related-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-muted);
        }

        .related-card-meta .tag {
            background: rgba(232, 134, 46, 0.12);
            color: var(--accent);
            padding: 2px 10px;
            border-radius: 20px;
            font-weight: 500;
        }

        .cta-section {
            background: linear-gradient(rgba(36, 90, 122, 0.92), rgba(31, 42, 54, 0.93)), url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            padding: 56px 0;
            color: #fff;
        }

        .cta-inner {
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .cta-inner p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.82);
            margin-bottom: 28px;
            line-height: 1.7;
        }

        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .site-footer {
            background: var(--dark-block);
            color: rgba(255, 255, 255, 0.85);
            padding: 56px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-brand .footer-logo i {
            color: #6ba3c9;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            margin: 0;
            max-width: 360px;
        }

        .footer-col-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-col-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color 0.2s ease;
        }

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

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 12px;
        }

        .footer-contact-item i {
            color: var(--accent);
            font-size: 13px;
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 16px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
        }

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

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

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

            .footer-brand p {
                max-width: 100%;
            }
        }

        @media (max-width: 767.98px) {
            .container-xxl {
                padding-left: 16px;
                padding-right: 16px;
            }

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

            .brand-logo i {
                font-size: 22px;
            }

            .header-phone {
                display: none;
            }

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

            .brand-bar-inner {
                min-height: 60px;
            }

            .channel-nav-list {
                padding: 8px 0;
                gap: 8px;
            }

            .nav-link-item {
                padding: 6px 14px;
                font-size: 13px;
            }

            .breadcrumb-bar {
                padding: 10px 0;
            }

            .article-section {
                padding: 24px 0 40px;
            }

            .article-card {
                padding: 24px 20px;
                border-radius: 10px;
            }

            .article-title {
                font-size: 24px;
                line-height: 1.4;
            }

            .article-meta {
                gap: 10px 14px;
            }

            .article-body {
                font-size: 15px;
                line-height: 1.8;
            }

            .article-body h2 {
                font-size: 19px;
                margin-top: 32px;
            }

            .article-body h3 {
                font-size: 17px;
            }

            .related-section {
                padding: 32px 0 40px;
            }

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

            .section-title {
                font-size: 20px;
            }

            .cta-section {
                padding: 40px 0;
            }

            .cta-inner h2 {
                font-size: 22px;
            }

            .cta-inner p {
                font-size: 14px;
            }

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

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

            .breadcrumb-list .current {
                max-width: 180px;
            }
        }

        @media (max-width: 520px) {
            .related-grid {
                grid-template-columns: 1fr;
            }

            .article-card {
                padding: 20px 16px;
            }

            .article-title {
                font-size: 21px;
            }

            .brand-actions {
                gap: 10px;
            }

            .cta-actions .btn {
                width: 90%;
                max-width: 260px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2E6E9E;
            --primary-dark: #245A7A;
            --accent: #E8862E;
            --bg: #F5F8FA;
            --card-bg: #FFFFFF;
            --text: #1F2A36;
            --text-2: #5B6B7A;
            --text-3: #8CA0B0;
            --border: #E4EBF0;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 12px rgba(31,42,54,0.06);
            --shadow-md: 0 6px 20px rgba(31,42,54,0.12);
            --font-main: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-main);
            background: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.7;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .25s ease;
        }

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

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

        .container-xxl {
            max-width: 1320px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Header ===== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 6px rgba(31, 42, 54, .03);
        }

        .brand-row-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
        }

        .site-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            letter-spacing: .5px;
        }

        .site-logo i {
            font-size: 26px;
            color: var(--accent);
        }

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

        .header-phone {
            color: var(--text-2);
            font-weight: 600;
            font-size: 15px;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .header-phone i {
            color: var(--primary);
        }

        .header-btn {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 9px 22px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            transition: all .3s ease;
            text-decoration: none;
            display: inline-block;
            box-shadow: 0 4px 12px rgba(46, 110, 158, .22);
        }

        .header-btn:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(46, 110, 158, .3);
        }

        .channel-nav {
            background: #EEF4F8;
            padding: 10px 0;
            border-top: 1px solid var(--border);
        }

        .channel-nav-list {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .nav-link-item {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 14px;
            color: var(--text-2);
            text-decoration: none;
            font-weight: 500;
            transition: all .3s ease;
            border: 1px solid transparent;
        }

        .nav-link-item:hover {
            background: rgba(46, 110, 158, .1);
            color: var(--primary);
            border-color: rgba(46, 110, 158, .15);
        }

        .nav-link-item.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(46, 110, 158, .25);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            padding: 80px 0;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(31, 42, 54, .6);
        }

        .page-hero .container-xxl {
            position: relative;
            z-index: 1;
        }

        .hero-kicker {
            display: inline-block;
            background: rgba(255, 255, 255, .14);
            border: 1px solid rgba(255, 255, 255, .22);
            color: #f6e3c9;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 16px;
        }

        .hero-title {
            font-size: 38px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            line-height: 1.35;
        }

        .hero-desc {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .88);
            max-width: 620px;
            margin-bottom: 30px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            border: none;
            padding: 12px 30px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 15px;
            display: inline-block;
            transition: all .3s ease;
            text-decoration: none;
            box-shadow: 0 4px 14px rgba(232, 134, 46, .3);
        }

        .btn-accent:hover {
            background: #d97d27;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(232, 134, 46, .4);
        }

        .btn-outline-light-custom {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, .75);
            color: #fff;
            padding: 12px 30px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 15px;
            display: inline-block;
            transition: all .3s ease;
            text-decoration: none;
        }

        .btn-outline-light-custom:hover {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Sections ===== */
        .site-section {
            padding: 64px 0;
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 44px;
        }

        .section-tag {
            display: inline-block;
            background: rgba(46, 110, 158, .1);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .section-sub {
            font-size: 15px;
            color: var(--text-2);
            line-height: 1.7;
        }

        /* ===== Service Capability ===== */
        .service-cap {
            background: var(--bg);
        }

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

        .service-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 26px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid #eef3f6;
            transition: all .3s ease;
        }

        .service-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: rgba(46, 110, 158, .15);
        }

        .service-icon {
            width: 52px;
            height: 52px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            background: rgba(46, 110, 158, .1);
            color: var(--primary);
            margin-bottom: 18px;
        }

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

        .service-card p {
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== Scene ===== */
        .scene-area {
            background: #fff;
        }

        .scene-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            margin-bottom: 48px;
        }

        .scene-row:last-child {
            margin-bottom: 0;
        }

        .scene-media img {
            width: 100%;
            border-radius: var(--radius);
            box-shadow: var(--shadow-md);
            display: block;
            object-fit: cover;
        }

        .scene-txt h3 {
            font-size: 22px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .scene-txt p {
            font-size: 15px;
            color: var(--text-2);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .scene-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .scene-list li {
            display: flex;
            gap: 10px;
            font-size: 14px;
            color: var(--text-2);
            padding: 6px 0;
            line-height: 1.6;
            align-items: flex-start;
        }

        .scene-list li i {
            color: var(--accent);
            margin-top: 4px;
            font-size: 14px;
        }

        /* ===== Process ===== */
        .process-area {
            background: var(--bg);
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 18px;
        }

        .process-step {
            background: #fff;
            border-radius: var(--radius);
            padding: 28px 18px 24px;
            text-align: center;
            border: 1px solid #eef3f6;
            box-shadow: var(--shadow-sm);
            transition: all .3s ease;
            position: relative;
        }

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

        .step-num {
            width: 38px;
            height: 38px;
            margin: 0 auto 14px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }

        .process-step h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text);
        }

        .process-step p {
            font-size: 13px;
            color: var(--text-2);
            line-height: 1.65;
            margin: 0;
        }

        /* ===== Support ===== */
        .support-area {
            background: var(--primary-dark);
            padding: 64px 0;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .support-area::before {
            content: "";
            position: absolute;
            right: -60px;
            top: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .04);
        }

        .support-area .section-title {
            color: #fff;
        }

        .support-area .section-sub {
            color: rgba(255, 255, 255, .75);
        }

        .support-area .section-tag {
            background: rgba(255, 255, 255, .12);
            color: #f6e3c9;
        }

        .support-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            position: relative;
            z-index: 1;
        }

        .support-item {
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: var(--radius);
            padding: 28px 24px;
            transition: all .3s ease;
        }

        .support-item:hover {
            background: rgba(255, 255, 255, .12);
            transform: translateY(-3px);
        }

        .support-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            background: rgba(232, 134, 46, .2);
            color: #f6c68a;
            margin-bottom: 16px;
        }

        .support-item h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .support-item p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, .78);
            margin: 0;
        }

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

        .faq-wrap {
            max-width: 780px;
            margin: 0 auto;
        }

        .accordion-item {
            border: 1px solid var(--border) !important;
            border-radius: 10px !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            background: #fff;
        }

        .accordion-button {
            font-size: 15px;
            font-weight: 600;
            color: var(--text) !important;
            padding: 18px 20px;
            background: #fff !important;
            border: none;
            box-shadow: none !important;
        }

        .accordion-button:not(.collapsed) {
            color: var(--primary) !important;
            background: #f5f9fc !important;
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(46, 110, 158, .12) !important;
            border-color: var(--primary) !important;
        }

        .accordion-button::after {
            content: "\f067";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            background: none;
            width: auto;
            height: auto;
            font-size: 14px;
            color: var(--primary);
            transition: transform .3s ease;
        }

        .accordion-button:not(.collapsed)::after {
            content: "\f00d";
            color: var(--accent);
            transform: rotate(90deg);
        }

        .accordion-body {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--text-2);
            line-height: 1.8;
            border-top: 1px solid var(--border);
            background: #fff;
        }

        /* ===== CTA Form ===== */
        .cta-area {
            background: var(--bg);
        }

        .cta-card {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-md);
            padding: 40px;
            max-width: 860px;
            margin: 0 auto;
        }

        .cta-card-head {
            text-align: center;
            margin-bottom: 28px;
        }

        .cta-card-head h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .cta-card-head p {
            font-size: 14px;
            color: var(--text-2);
            margin: 0;
        }

        .form-control,
        .form-select {
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 12px 14px;
            font-size: 14px;
            color: var(--text);
            background: #fff;
            transition: all .3s ease;
            line-height: 1.5;
        }

        .form-control:focus,
        .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 110, 158, .15);
            color: var(--text);
        }

        .form-control::placeholder,
        .form-select::placeholder {
            color: var(--text-3);
        }

        .btn-submit {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 48px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 15px;
            transition: all .3s ease;
            display: inline-block;
            box-shadow: 0 4px 14px rgba(46, 110, 158, .25);
        }

        .btn-submit:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(46, 110, 158, .35);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #1F2A36;
            color: rgba(255, 255, 255, .75);
            padding: 56px 0 0;
            font-size: 14px;
        }

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

        .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-logo i {
            color: var(--accent);
            font-size: 22px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.75;
            color: rgba(255, 255, 255, .6);
            margin: 0;
        }

        .footer-col-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, .65);
            font-size: 14px;
            text-decoration: none;
            transition: color .25s ease;
        }

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

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
        }

        .footer-contact-item i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .12);
            padding: 18px 0;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 12px;
            color: rgba(255, 255, 255, .4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, .4);
            text-decoration: none;
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 991px) {
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-grid {
                grid-template-columns: repeat(3, 1fr);
            }

            .support-grid {
                grid-template-columns: repeat(3, 1fr);
            }

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

        @media (max-width: 767px) {
            .container-xxl {
                padding-left: 16px;
                padding-right: 16px;
            }

            .brand-row-inner {
                flex-wrap: wrap;
                justify-content: center;
                text-align: center;
                gap: 10px;
            }

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

            .header-phone {
                display: none;
            }

            .channel-nav-list {
                flex-wrap: nowrap;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                padding-bottom: 4px;
                gap: 8px;
            }

            .nav-link-item {
                flex-shrink: 0;
                padding: 7px 14px;
                font-size: 13px;
            }

            .page-hero {
                padding: 48px 0;
                text-align: center;
            }

            .hero-title {
                font-size: 28px;
            }

            .hero-desc {
                font-size: 15px;
                margin-left: auto;
                margin-right: auto;
            }

            .hero-actions {
                justify-content: center;
            }

            .btn-accent,
            .btn-outline-light-custom {
                width: 90%;
                max-width: 300px;
                text-align: center;
            }

            .site-section {
                padding: 40px 0;
            }

            .section-title {
                font-size: 22px;
            }

            .section-sub {
                font-size: 14px;
            }

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

            .scene-row {
                grid-template-columns: 1fr;
                gap: 24px;
                margin-bottom: 36px;
            }

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

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

            .support-area {
                padding: 48px 0;
            }

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

            .cta-card-head h2 {
                font-size: 22px;
            }

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

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

        @media (max-width: 520px) {
            .process-grid {
                grid-template-columns: 1fr;
            }

            .process-step {
                padding: 20px 16px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2E6E9E;
            --primary-dark: #245A7A;
            --accent: #E8862E;
            --accent-light: #F7A556;
            --bg: #F5F8FA;
            --card-bg: #FFFFFF;
            --text: #1F2A36;
            --text-secondary: #5B6B7A;
            --text-light: #8CA0B0;
            --border: #E4EBF0;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 2px 12px rgba(31, 42, 54, 0.06);
            --shadow-hover: 0 6px 20px rgba(31, 42, 54, 0.12);
            --shadow-btn: 0 4px 12px rgba(46, 110, 158, 0.3);
            --transition: all 0.25s ease;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        .container-xxl {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Top Bar ===== */
        .top-bar {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.85);
            font-size: 13px;
            padding: 6px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .top-bar .container-xxl {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .top-bar-info {
            display: flex;
            gap: 24px;
            align-items: center;
        }
        .top-bar-info span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .top-bar-info i {
            font-size: 12px;
            opacity: 0.8;
        }

        /* ===== Header ===== */
        .site-header {
            background: #FFFFFF;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 4px rgba(31, 42, 54, 0.06);
        }
        .brand-bar {
            background: #FFFFFF;
            border-bottom: 1px solid var(--border);
        }
        .brand-bar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            text-decoration: none;
            white-space: nowrap;
        }
        .brand-logo i {
            color: var(--primary);
            font-size: 26px;
        }
        .brand-logo span {
            color: var(--primary);
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .brand-phone {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
        }
        .brand-phone i {
            color: var(--primary);
            font-size: 18px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 14px;
            border-radius: var(--radius-sm);
            padding: 10px 24px;
            transition: var(--transition);
            border: 2px solid transparent;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--primary);
            color: #FFFFFF !important;
            border-color: var(--primary);
            box-shadow: var(--shadow-btn);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(46, 110, 158, 0.35);
        }
        .btn-accent {
            background: var(--accent);
            color: #FFFFFF !important;
            border-color: var(--accent);
            box-shadow: 0 4px 12px rgba(232, 134, 46, 0.3);
        }
        .btn-accent:hover {
            background: #D97816;
            border-color: #D97816;
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.8);
            color: #FFFFFF !important;
        }
        .btn-outline-light:hover {
            background: #FFFFFF;
            color: var(--primary) !important;
            border-color: #FFFFFF;
        }
        .btn-outline-primary {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary) !important;
        }
        .btn-outline-primary:hover {
            background: var(--primary);
            color: #FFFFFF !important;
        }

        /* ===== Channel Nav ===== */
        .channel-nav {
            background: #EEF4F8;
            border-bottom: 1px solid var(--border);
        }
        .channel-nav-inner {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 0;
            overflow-x: auto;
            scrollbar-width: none;
        }
        .channel-nav-inner::-webkit-scrollbar {
            display: none;
        }
        .nav-link-item {
            display: inline-flex;
            align-items: center;
            padding: 7px 18px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            white-space: nowrap;
            transition: var(--transition);
        }
        .nav-link-item:hover {
            color: var(--primary);
            background: rgba(46, 110, 158, 0.08);
        }
        .nav-link-item.active {
            background: var(--primary);
            color: #FFFFFF;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(46, 110, 158, 0.25);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            background: linear-gradient(rgba(31, 42, 54, 0.5), rgba(31, 42, 54, 0.5)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 80px 0;
            color: #FFFFFF;
            position: relative;
        }
        .page-hero-inner {
            max-width: 720px;
        }
        .page-hero .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            color: #FFFFFF;
            margin-bottom: 20px;
            backdrop-filter: none;
        }
        .page-hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 16px;
        }
        .page-hero p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            line-height: 1.7;
        }
        .hero-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-trust {
            margin-top: 32px;
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
        }
        .hero-trust i {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.6);
        }

        /* ===== Section 通用 ===== */
        .section {
            padding: 64px 0;
        }
        .section-alt {
            background: #FFFFFF;
        }
        .section-head {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-head .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(46, 110, 158, 0.08);
            color: var(--primary);
            padding: 5px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }
        .section-head p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
        }

        /* ===== 核心方法 ===== */
        .method-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .method-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .method-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            border-radius: var(--radius);
        }
        .method-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .method-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            background: var(--bg);
            border-radius: var(--radius-sm);
            padding: 16px 18px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .method-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(46, 110, 158, 0.3);
            transform: translateX(4px);
        }
        .method-icon {
            width: 40px;
            height: 40px;
            min-width: 40px;
            border-radius: 10px;
            background: rgba(46, 110, 158, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }
        .method-content h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .method-content p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== 应用场景 ===== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .scenario-card {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 28px 24px;
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .scenario-card::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            width: 4px;
            height: 100%;
            background: var(--primary);
            border-radius: 0 4px 4px 0;
            opacity: 0;
            transition: var(--transition);
        }
        .scenario-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(46, 110, 158, 0.25);
            transform: translateY(-4px);
        }
        .scenario-card:hover::before {
            opacity: 1;
        }
        .scenario-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: rgba(46, 110, 158, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 18px;
        }
        .scenario-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .scenario-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.65;
        }

        /* ===== 实施流程 ===== */
        .process-wrap {
            max-width: 860px;
            margin: 0 auto;
            position: relative;
        }
        .process-wrap::before {
            content: "";
            position: absolute;
            left: 27px;
            top: 20px;
            bottom: 20px;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary), var(--accent));
            opacity: 0.15;
        }
        .process-item {
            display: flex;
            gap: 24px;
            position: relative;
            margin-bottom: 20px;
            background: #FFFFFF;
            border-radius: var(--radius);
            padding: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .process-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .process-num {
            width: 56px;
            height: 56px;
            min-width: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            box-shadow: 0 4px 12px rgba(46, 110, 158, 0.3);
            z-index: 1;
        }
        .process-content {
            flex: 1;
        }
        .process-content h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .process-content p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.65;
        }

        /* ===== 能力矩阵 ===== */
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .matrix-item {
            background: #FFFFFF;
            border-radius: var(--radius);
            padding: 28px 22px;
            text-align: center;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .matrix-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(46, 110, 158, 0.3);
        }
        .matrix-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 16px;
            border-radius: 14px;
            background: var(--primary);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            box-shadow: 0 4px 12px rgba(46, 110, 158, 0.3);
        }
        .matrix-item h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .matrix-item p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-accordion .accordion-item {
            border: 1px solid var(--border) !important;
            border-radius: 10px !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: #FFFFFF;
            box-shadow: none;
        }
        .faq-accordion .accordion-button {
            background: #FFFFFF;
            color: var(--text);
            padding: 18px 22px;
            font-size: 15px;
            font-weight: 600;
            box-shadow: none;
            border: none;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--accent);
            background: #FFFFFF;
            box-shadow: none;
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }
        .faq-accordion .accordion-button::after {
            background-image: none;
            content: '+';
            font-family: sans-serif;
            font-size: 22px;
            font-weight: 400;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            color: var(--primary);
            transition: transform 0.25s;
        }
        .faq-accordion .accordion-button:not(.collapsed)::after {
            content: '×';
            color: var(--accent);
            transform: rotate(90deg);
        }
        .faq-accordion .accordion-body {
            padding: 0 22px 18px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary-dark);
            color: #FFFFFF;
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            right: -80px;
            top: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }
        .cta-inner {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .cta-inner h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-inner p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .cta-btns {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #1F2A36;
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 14px;
        }
        .footer-logo i {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            margin: 0;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }
        .footer-col-title {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 12px;
        }
        .footer-contact-item i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 16px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991px) {
            .brand-bar-inner {
                flex-wrap: wrap;
            }
            .method-wrap {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .scenario-grid {
                grid-template-columns: 1fr 1fr;
            }
            .matrix-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .page-hero {
                padding: 60px 0;
            }
            .page-hero h1 {
                font-size: 30px;
            }
        }
        @media (max-width: 767px) {
            .container-xxl {
                padding: 0 16px;
            }
            .brand-phone {
                display: none;
            }
            .brand-bar-inner {
                padding: 12px 0;
            }
            .brand-logo {
                font-size: 18px;
            }
            .page-hero {
                padding: 48px 0;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .page-hero p {
                font-size: 14px;
            }
            .hero-btns {
                flex-direction: column;
                gap: 10px;
            }
            .hero-btns .btn {
                width: 100%;
            }
            .section {
                padding: 40px 0;
            }
            .section-head h2 {
                font-size: 22px;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .matrix-grid {
                grid-template-columns: 1fr;
            }
            .process-item {
                flex-direction: column;
                gap: 12px;
                padding: 20px;
            }
            .process-num {
                width: 44px;
                height: 44px;
                min-width: 44px;
                font-size: 18px;
            }
            .process-wrap::before {
                left: 21px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section {
                padding: 48px 0;
            }
            .cta-inner h2 {
                font-size: 22px;
            }
        }
        @media (max-width: 520px) {
            .brand-logo {
                font-size: 16px;
            }
            .brand-logo i {
                font-size: 20px;
            }
            .btn {
                padding: 8px 18px;
                font-size: 13px;
            }
            .nav-link-item {
                padding: 6px 14px;
                font-size: 13px;
            }
        }