/* roulang page: index */
:root {
      --color-primary: #0F4C81;
      --color-primary-dark: #0A2E50;
      --color-teal: #0D9488;
      --color-blue: #1D4ED8;
      --color-bg-light: #F8FAFC;
      --color-bg-white: #FFFFFF;
      --color-dark: #0F172A;
      --color-text-main: #0F172A;
      --color-text-body: #334155;
      --color-text-muted: #64748B;
      --color-border: #E2E8F0;
      --color-border-hover: #CBD5E1;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --radius-xl: 24px;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
      --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -1px rgba(0,0,0,0.04);
      --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.03);
      --transition: all 0.25s ease-in-out;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
      font-size: 15px;
      line-height: 1.75;
      color: var(--color-text-body);
      background-color: var(--color-bg-white);
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

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

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

    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部提示条 */
    .top-notice-bar {
      background-color: #F1F5F9;
      border-bottom: 1px solid var(--color-border);
      font-size: 13px;
      color: var(--color-text-muted);
      padding: 8px 0;
    }
    .top-notice-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
    }
    .notice-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: #E2E8F0;
      color: #334155;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 500;
      font-size: 12px;
    }

    /* 主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background-color: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(8px);
      border-bottom: 1px solid var(--color-border);
      transition: var(--transition);
    }
    .nav-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--color-primary);
      letter-spacing: -0.5px;
    }
    .brand-logo svg {
      width: 32px;
      height: 32px;
      color: var(--color-teal);
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 28px;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 500;
      color: var(--color-text-main);
      padding: 6px 0;
      position: relative;
      transition: var(--transition);
    }
    .nav-link:hover, .nav-link.active {
      color: var(--color-teal);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
      color: var(--color-text-main);
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 600;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
      text-align: center;
      white-space: nowrap;
    }
    .btn-primary {
      background-color: var(--color-primary);
      color: #FFF;
      box-shadow: 0 2px 4px rgba(15, 76, 129, 0.2);
    }
    .btn-primary:hover {
      background-color: var(--color-primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 4px 8px rgba(15, 76, 129, 0.3);
    }
    .btn-secondary {
      background-color: #FFF;
      border-color: var(--color-border);
      color: var(--color-text-main);
    }
    .btn-secondary:hover {
      border-color: var(--color-teal);
      color: var(--color-teal);
      background-color: var(--color-bg-light);
    }
    .btn-teal {
      background-color: var(--color-teal);
      color: #FFF;
    }
    .btn-teal:hover {
      background-color: #0B766D;
      transform: translateY(-2px);
    }

    /* 板块共有规范 */
    .section-spacing {
      padding: 72px 0;
    }
    .section-spacing-sm {
      padding: 48px 0;
    }
    .bg-light {
      background-color: var(--color-bg-light);
    }
    .bg-white {
      background-color: var(--color-bg-white);
    }
    .bg-dark {
      background-color: var(--color-dark);
      color: #F8FAFC;
    }
    .section-header {
      margin-bottom: 44px;
      max-width: 820px;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      color: var(--color-teal);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 8px;
    }
    .section-title {
      font-size: 30px;
      line-height: 1.35;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }
    .bg-dark .section-title {
      color: #FFF;
    }
    .section-subtitle {
      font-size: 16px;
      line-height: 1.7;
      color: var(--color-text-muted);
    }
    .bg-dark .section-subtitle {
      color: #94A3B8;
    }

    /* 1. Hero 板块 (安全合规主张 + 勾选条 + 信任CTA) */
    .hero-section {
      position: relative;
      padding: 64px 0 80px;
      background: linear-gradient(180deg, #F1F5F9 0%, #FFFFFF 100%);
      border-bottom: 1px solid var(--color-border);
      overflow: hidden;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-title {
      font-size: 38px;
      line-height: 1.25;
      font-weight: 800;
      color: var(--color-dark);
      margin-bottom: 18px;
      letter-spacing: -1px;
    }
    .hero-title span {
      color: var(--color-primary);
    }
    .hero-desc {
      font-size: 16px;
      line-height: 1.8;
      color: var(--color-text-body);
      margin-bottom: 28px;
    }
    .hero-checklist {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px 20px;
      margin-bottom: 32px;
      padding: 16px 20px;
      background-color: rgba(255, 255, 255, 0.8);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
    }
    .check-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 500;
      color: #1E293B;
    }
    .check-item svg {
      width: 18px;
      height: 18px;
      color: var(--color-teal);
      flex-shrink: 0;
    }
    .hero-actions {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
    }
    .hero-visual-card {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--color-border);
      background-color: #FFF;
    }
    .hero-visual-card img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }
    .hero-floating-badge {
      position: absolute;
      bottom: 20px;
      left: 20px;
      right: 20px;
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(8px);
      padding: 16px 20px;
      border-radius: var(--radius-md);
      color: #FFF;
      display: flex;
      justify-content: space-between;
      align-items: center;
      border: 1px solid rgba(255,255,255,0.15);
    }
    .badge-stat {
      display: flex;
      flex-direction: column;
    }
    .badge-val {
      font-size: 20px;
      font-weight: 700;
      color: #38BDF8;
    }
    .badge-label {
      font-size: 12px;
      color: #CBD5E1;
    }

    /* 2. 品牌故事板块 (图文非对称) */
    .brand-story-grid {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 48px;
      align-items: center;
    }
    .story-cover {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-md);
    }
    .story-cover img {
      width: 100%;
      height: 360px;
      object-fit: cover;
    }
    .story-content h3 {
      font-size: 24px;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 16px;
    }
    .story-content p {
      margin-bottom: 16px;
      font-size: 15px;
      color: var(--color-text-body);
      line-height: 1.8;
    }
    .story-meta-box {
      margin-top: 24px;
      padding: 16px;
      background: var(--color-bg-light);
      border-left: 4px solid var(--color-primary);
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      font-size: 14px;
      color: var(--color-text-main);
    }

    /* 3. 系列导航 (分类索引/专题入口) */
    .category-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .cat-item-card {
      background: #FFF;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .cat-item-card:hover {
      border-color: var(--color-teal);
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
    }
    .cat-icon-wrap {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-sm);
      background-color: #F0FDFA;
      color: var(--color-teal);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
    }
    .cat-item-card h4 {
      font-size: 18px;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 8px;
    }
    .cat-item-card p {
      font-size: 14px;
      color: var(--color-text-muted);
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .cat-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--color-primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 4. 爆款网格 (数据驱动核心能力矩阵) */
    .featured-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .feature-card {
      background: #FFF;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      transition: var(--transition);
      position: relative;
    }
    .feature-card:hover {
      border-color: var(--color-primary);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .feature-card-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 16px;
    }
    .feature-badge {
      font-size: 12px;
      padding: 3px 8px;
      border-radius: 4px;
      background: #EFF6FF;
      color: var(--color-blue);
      font-weight: 600;
    }
    .feature-card h4 {
      font-size: 19px;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 12px;
    }
    .feature-card p {
      font-size: 14px;
      line-height: 1.7;
      color: var(--color-text-body);
      margin-bottom: 20px;
    }
    .feature-list {
      list-style: none;
      margin-bottom: 20px;
      padding-top: 14px;
      border-top: 1px dashed var(--color-border);
    }
    .feature-list li {
      font-size: 13px;
      color: var(--color-text-muted);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .feature-list li::before {
      content: "•";
      color: var(--color-teal);
      font-weight: bold;
    }

    /* 5. 会员权益 / 机构准入服务等级 */
    .tier-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .tier-card {
      background: #FFF;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 32px 24px;
      position: relative;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .tier-card.popular {
      border-color: var(--color-primary);
      box-shadow: var(--shadow-lg);
      transform: scale(1.02);
    }
    .popular-flag {
      position: absolute;
      top: -12px;
      right: 24px;
      background: var(--color-primary);
      color: #FFF;
      font-size: 12px;
      font-weight: 600;
      padding: 2px 12px;
      border-radius: 12px;
    }
    .tier-name {
      font-size: 20px;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 8px;
    }
    .tier-desc {
      font-size: 13px;
      color: var(--color-text-muted);
      margin-bottom: 20px;
      min-height: 38px;
    }
    .tier-price-box {
      font-size: 28px;
      font-weight: 800;
      color: var(--color-dark);
      margin-bottom: 20px;
      padding-bottom: 20px;
      border-bottom: 1px solid var(--color-border);
    }
    .tier-price-box span {
      font-size: 14px;
      font-weight: 400;
      color: var(--color-text-muted);
    }
    .tier-benefits {
      list-style: none;
      margin-bottom: 28px;
      flex-grow: 1;
    }
    .tier-benefits li {
      font-size: 14px;
      color: var(--color-text-body);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* 6. 沉浸式技术理念与合规架构 (深色背景) */
    .dark-flow-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
      margin-top: 36px;
    }
    .dark-card {
      background: #1E293B;
      border: 1px solid #334155;
      border-radius: var(--radius-md);
      padding: 28px 24px;
      transition: var(--transition);
    }
    .dark-card:hover {
      border-color: #38BDF8;
      transform: translateY(-3px);
    }
    .dark-card-icon {
      font-size: 24px;
      color: #38BDF8;
      margin-bottom: 16px;
    }
    .dark-card h4 {
      font-size: 18px;
      font-weight: 700;
      color: #FFF;
      margin-bottom: 10px;
    }
    .dark-card p {
      font-size: 14px;
      line-height: 1.7;
      color: #94A3B8;
    }

    /* 7. 资讯情报与行业动态摘要 */
    .news-layout-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .news-feature-card {
      background: #FFF;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .news-feature-card img {
      width: 100%;
      height: 240px;
      object-fit: cover;
    }
    .news-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .news-date {
      font-size: 12px;
      color: var(--color-teal);
      font-weight: 600;
      margin-bottom: 8px;
    }
    .news-body h4 {
      font-size: 20px;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 10px;
    }
    .news-body p {
      font-size: 14px;
      line-height: 1.7;
      color: var(--color-text-body);
      margin-bottom: 16px;
    }
    .news-list-column {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .news-row-item {
      background: #FFF;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 18px 20px;
      display: flex;
      flex-direction: column;
      gap: 6px;
      transition: var(--transition);
    }
    .news-row-item:hover {
      border-color: var(--color-primary);
      box-shadow: var(--shadow-sm);
    }
    .news-row-meta {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--color-text-muted);
    }
    .news-row-title {
      font-size: 16px;
      font-weight: 600;
      color: var(--color-text-main);
    }
    .news-row-desc {
      font-size: 13px;
      color: var(--color-text-body);
      line-height: 1.6;
    }

    /* 8. 保障条 (4列全景流程) */
    .guarantee-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .guarantee-col {
      background: #FFF;
      border: 1px solid var(--color-border);
      padding: 24px 20px;
      border-radius: var(--radius-md);
      border-top: 3px solid var(--color-primary);
    }
    .guarantee-step {
      font-size: 12px;
      font-weight: 700;
      color: var(--color-teal);
      margin-bottom: 8px;
    }
    .guarantee-col h4 {
      font-size: 17px;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 8px;
    }
    .guarantee-col p {
      font-size: 13px;
      color: var(--color-text-muted);
      line-height: 1.6;
    }

    /* 9. 口碑与社会认同 (3列专家/机构评价) */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testimonial-card {
      background: #FFF;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      position: relative;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testimonial-quote {
      font-size: 14px;
      line-height: 1.75;
      color: var(--color-text-body);
      margin-bottom: 20px;
      position: relative;
    }
    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 12px;
      padding-top: 16px;
      border-top: 1px solid var(--color-border);
    }
    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--color-primary);
    }
    .author-info h5 {
      font-size: 15px;
      font-weight: 700;
      color: var(--color-text-main);
    }
    .author-info span {
      font-size: 12px;
      color: var(--color-text-muted);
    }

    /* 10. 交互式检索向导 (分类预览) */
    .filter-guide-card {
      background: #FFF;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }
    .guide-tabs {
      display: flex;
      gap: 12px;
      border-bottom: 1px solid var(--color-border);
      padding-bottom: 16px;
      margin-bottom: 24px;
      flex-wrap: wrap;
    }
    .guide-tab-btn {
      padding: 8px 18px;
      border-radius: 20px;
      border: 1px solid var(--color-border);
      background: #FFF;      font-size: 14px;
      font-weight: 600;
      color: var(--color-text-main);
      cursor: pointer;
      transition: var(--transition);
    }
    .guide-tab-btn.active, .guide-tab-btn:hover {
      background: var(--color-primary);
      color: #FFF;
      border-color: var(--color-primary);
    }
    .guide-preview-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }
    .guide-preview-table th {
      background: #F8FAFC;
      padding: 12px 16px;
      font-weight: 600;
      color: var(--color-text-main);
      border-bottom: 2px solid var(--color-border);
    }
    .guide-preview-table td {
      padding: 14px 16px;
      border-bottom: 1px solid var(--color-border);
      color: var(--color-text-body);
    }
    .status-badge {
      display: inline-block;
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 12px;
      font-weight: 600;
      background: #ECFDF5;
      color: #059669;
    }

    /* 11. FAQ 手风琴 */
    .faq-accordion-list {
      max-width: 920px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      background: #FFF;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item:hover {
      border-color: #94A3B8;
    }
    .faq-question {
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--color-text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
    }
    .faq-icon {
      width: 20px;
      height: 20px;
      color: var(--color-primary);
      transition: transform 0.3s ease;
      flex-shrink: 0;
    }
    .faq-item.active .faq-icon {
      transform: rotate(180deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background-color: #F8FAFC;
    }
    .faq-item.active .faq-answer {
      max-height: 300px;
    }
    .faq-answer-inner {
      padding: 0 24px 20px 24px;
      font-size: 14px;
      line-height: 1.8;
      color: var(--color-text-body);
    }

    /* 12. 进店入口与全天候对接表单 (收口 CTA) */
    .cta-container {
      background: linear-gradient(135deg, #0A192F 0%, #0F4C81 100%);
      border-radius: var(--radius-xl);
      padding: 56px 48px;
      color: #FFF;
      box-shadow: var(--shadow-lg);
    }
    .cta-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }
    .cta-info h3 {
      font-size: 32px;
      font-weight: 800;
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .cta-info p {
      font-size: 15px;
      line-height: 1.8;
      color: #CBD5E1;
      margin-bottom: 28px;
    }
    .cta-contact-meta {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .contact-meta-row {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 14px;
      color: #E2E8F0;
    }
    .contact-meta-row svg {
      width: 20px;
      height: 20px;
      color: #38BDF8;
      flex-shrink: 0;
    }
    .cta-form-box {
      background: #FFF;
      border-radius: var(--radius-lg);
      padding: 32px;
      color: var(--color-text-main);
      box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--color-text-main);
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      padding: 10px 14px;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--color-text-main);
      outline: none;
      transition: var(--transition);
    }
    .form-control:focus {
      border-color: var(--color-primary);
      box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.15);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 72px;
    }

    /* 统一页脚 */
    .site-footer {
      background-color: #0B132B;
      color: #94A3B8;
      padding: 64px 0 32px;
      border-top: 1px solid #1E293B;
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-brand h4 {
      font-size: 20px;
      font-weight: 700;
      color: #FFF;
      margin-bottom: 16px;
    }
    .footer-brand p {
      line-height: 1.75;
      font-size: 13px;
      color: #94A3B8;
      margin-bottom: 16px;
    }
    .footer-col h5 {
      font-size: 15px;
      font-weight: 600;
      color: #FFF;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      color: #94A3B8;
      transition: var(--transition);
    }
    .footer-links a:hover {
      color: #38BDF8;
    }
    .footer-compliance-box {
      font-size: 12px;
      line-height: 1.65;
      color: #64748B;
      padding: 16px;
      background: #0F172A;
      border-radius: var(--radius-sm);
      border: 1px solid #1E293B;
    }
    .footer-bottom-bar {
      border-top: 1px solid #1E293B;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
    }

    /* 移动端菜单抽屉 */
    .mobile-drawer {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(15, 23, 42, 0.6);
      backdrop-filter: blur(4px);
      z-index: 1000;
    }
    .drawer-content {
      position: absolute;
      top: 0;
      right: 0;
      width: 280px;
      height: 100%;
      background: #FFF;
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 20px;
      box-shadow: -4px 0 16px rgba(0,0,0,0.1);
    }
    .drawer-close {
      align-self: flex-end;
      background: none;
      border: none;
      font-size: 24px;
      cursor: pointer;
      color: var(--color-text-main);
    }
    .drawer-nav-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
      list-style: none;
    }
    .drawer-nav-list a {
      font-size: 16px;
      font-weight: 600;
      color: var(--color-text-main);
    }

    /* 响应式断点适配 */
    @media (max-width: 1024px) {
      .hero-grid, .brand-story-grid, .cta-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .featured-grid, .tier-grid, .testimonial-grid, .dark-flow-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .category-grid, .guarantee-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .main-nav {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .featured-grid, .tier-grid, .testimonial-grid, .dark-flow-grid, .news-layout-grid {
        grid-template-columns: 1fr;
      }
      .category-grid, .guarantee-bar {
        grid-template-columns: 1fr;
      }
      .hero-checklist {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 30px;
      }
      .section-title {
        font-size: 24px;
      }
      .cta-container {
        padding: 32px 20px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom-bar {
        flex-direction: column;
        text-align: center;
      }
    }