/* roulang page: index */
:root {
      --primary: #0F52BA;
      --primary-dark: #0A3D8F;
      --primary-light: #E0F2FE;
      --accent: #F59E0B;
      --accent-hover: #D97706;
      --bg-page: #F8FAFC;
      --bg-card: #FFFFFF;
      --bg-dark: #0B132B;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-light: #94A3B8;
      --border-color: #E2E8F0;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-sm: 0 2px 8px -1px rgba(15, 23, 42, 0.05);
      --shadow-card: 0 10px 25px -4px rgba(15, 23, 42, 0.07), 0 4px 10px -2px rgba(15, 23, 42, 0.03);
      --shadow-hover: 0 18px 36px -6px rgba(15, 82, 186, 0.12), 0 8px 18px -4px rgba(15, 23, 42, 0.06);
      --font-stack: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: var(--font-stack);
      color: var(--text-main);
      background-color: var(--bg-page);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

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

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

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

    /* 顶部导航与微条 */
    .top-bar {
      background-color: #0F172A;
      color: #94A3B8;
      font-size: 0.85rem;
      padding: 8px 0;
      border-bottom: 1px solid #1E293B;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }
    .top-bar-left, .top-bar-right {
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .top-bar-highlight {
      color: #38BDF8;
      font-weight: 600;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      box-shadow: 0 4px 16px rgba(15, 23, 42, 0.05);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
    }
    .logo-area {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-logo {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--primary);
      display: flex;
      align-items: center;
      letter-spacing: -0.5px;
    }
    .brand-tag {
      font-size: 0.75rem;
      background: var(--primary-light);
      color: var(--primary);
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 600;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 24px;
      list-style: none;
    }
    .nav-menu a {
      font-weight: 500;
      color: #334155;
      font-size: 0.98rem;
      padding: 6px 4px;
      position: relative;
    }
    .nav-menu a:hover, .nav-menu a.active {
      color: var(--primary);
    }
    .nav-menu a.active::after {
      content: "";
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }
    .nav-cta {
      background: var(--accent);
      color: #FFFFFF;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 0.95rem;
      transition: background 0.2s, transform 0.2s;
    }
    .nav-cta:hover {
      background: var(--accent-hover);
      transform: translateY(-1px);
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }
    .mobile-menu-btn span {
      display: block;
      width: 24px;
      height: 2px;
      background-color: var(--text-main);
      margin: 5px 0;
      transition: 0.3s;
    }

    /* 板块排版基础 */
    section {
      padding: 84px 0;
      position: relative;
    }
    .section-light {
      background-color: #FFFFFF;
    }
    .section-muted {
      background-color: #F8FAFC;
    }
    .section-dark {
      background-color: var(--bg-dark);
      color: #F8FAFC;
    }
    .section-header {
      margin-bottom: 50px;
    }
    .section-header.text-center {
      text-align: center;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }
    .sub-title-badge {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      background: var(--primary-light);
      padding: 4px 14px;
      border-radius: 30px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .section-dark .sub-title-badge {
      background: rgba(56, 189, 248, 0.15);
      color: #38BDF8;
    }
    h2.section-title {
      font-size: 2.15rem;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 16px;
      color: var(--text-main);
    }
    .section-dark h2.section-title {
      color: #FFFFFF;
    }
    p.section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.75;
    }
    .section-dark p.section-desc {
      color: #94A3B8;
    }

    /* 按钮通用 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      font-size: 1rem;
      padding: 12px 28px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s ease;
      text-align: center;
    }
    .btn:active {
      transform: scale(0.98);
    }
    .btn-primary {
      background: var(--primary);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(15, 82, 186, 0.25);
    }
    .btn-primary:hover {
      background: var(--primary-dark);
      box-shadow: 0 6px 18px rgba(15, 82, 186, 0.35);
    }
    .btn-accent {
      background: var(--accent);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(245, 158, 11, 0.25);
    }
    .btn-accent:hover {
      background: var(--accent-hover);
    }
    .btn-outline-white {
      background: transparent;
      color: #FFFFFF;
      border-color: rgba(255, 255, 255, 0.4);
    }
    .btn-outline-white:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: #FFFFFF;
    }
    .btn-outline-primary {
      background: transparent;
      color: var(--primary);
      border-color: var(--primary);
    }
    .btn-outline-primary:hover {
      background: var(--primary-light);
    }

    /* 1. 首屏 Hero */
    #hero-banner {
      padding: 80px 0 100px;
      background: linear-gradient(135deg, #091A3E 0%, #0F2D6B 60%, #153B8C 100%), url('/assets/images/125945c22cd7f4d2.webp') center/cover no-repeat;
      background-blend-mode: overlay;
      color: #FFFFFF;
      position: relative;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 2.75rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 22px;
      letter-spacing: -0.5px;
    }
    .hero-content .hero-summary {
      font-size: 1.1rem;
      line-height: 1.8;
      color: #E2E8F0;
      margin-bottom: 32px;
      max-width: 620px;
    }
    .hero-specs-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      margin-bottom: 32px;
      padding: 18px;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-md);
      backdrop-filter: blur(8px);
    }
    .hero-spec-item strong {
      display: block;
      font-size: 1.4rem;
      color: #38BDF8;
      font-weight: 700;
    }
    .hero-spec-item span {
      font-size: 0.85rem;
      color: #CBD5E1;
    }
    .hero-btn-group {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .hero-search-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-card);
      color: var(--text-main);
    }
    .hero-search-card h3 {
      font-size: 1.3rem;
      font-weight: 700;
      margin-bottom: 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      color: var(--primary);
    }
    .hero-search-card .badge {
      font-size: 0.75rem;
      background: #EFF6FF;
      color: var(--primary);
      padding: 3px 8px;
      border-radius: 4px;
    }
    .search-field {
      margin-bottom: 16px;
    }
    .search-field label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      color: #475569;
      margin-bottom: 6px;
    }
    .search-field input, .search-field select {
      width: 100%;
      height: 44px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 0 12px;
      font-size: 0.95rem;
      background: #F8FAFC;
      color: var(--text-main);
      outline: none;
    }
    .search-field input:focus, .search-field select:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(15, 82, 186, 0.15);
    }
    .hero-search-card .btn-block {
      width: 100%;
      height: 48px;
      margin-top: 10px;
    }

    /* 2. 指标看板 */
    #metrics-dashboard {
      padding: 40px 0;
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 4px 12px rgba(0,0,0,0.02);
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .metric-card {
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 16px 20px;
      border-right: 1px solid var(--border-color);
    }
    .metric-card:last-child {
      border-right: none;
    }
    .metric-icon-wrap {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      background: var(--primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      flex-shrink: 0;
    }
    .metric-info strong {
      display: block;
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--primary-dark);
      line-height: 1.1;
    }
    .metric-info span {
      font-size: 0.88rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 3. 适用人群与场景定位 */
    #target-audience {
      background-color: #F8FAFC;
    }
    .audience-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .audience-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }
    .audience-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: #93C5FD;
    }
    .audience-card-img {
      height: 180px;
      position: relative;
      overflow: hidden;
    }
    .audience-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .audience-card:hover .audience-card-img img {
      transform: scale(1.05);
    }
    .audience-card-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .audience-card-body h3 {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .audience-card-body p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 18px;
      flex: 1;
    }
    .audience-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .audience-tag {
      font-size: 0.78rem;
      background: #F1F5F9;
      color: #475569;
      padding: 4px 10px;
      border-radius: 4px;
    }

    /* 4. 谁适合/谁不适合 */
    #suitability-matrix {
      background: #FFFFFF;
    }
    .suitability-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }
    .suit-box {
      border-radius: var(--radius-md);
      padding: 34px;
      border: 1px solid var(--border-color);
    }
    .suit-box.suitable {
      background: #F0FDF4;
      border-color: #BBF7D0;
    }
    .suit-box.unsuitable {
      background: #FFF7ED;
      border-color: #FED7AA;
    }
    .suit-box h3 {
      font-size: 1.35rem;
      font-weight: 700;
      margin-bottom: 18px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .suit-box.suitable h3 {
      color: #166534;
    }
    .suit-box.unsuitable h3 {
      color: #9A3412;
    }
    .suit-list {
      list-style: none;
    }
    .suit-list li {
      position: relative;
      padding-left: 26px;
      margin-bottom: 16px;
      font-size: 0.98rem;
      line-height: 1.65;
    }
    .suit-box.suitable .suit-list li {
      color: #14532D;
    }
    .suit-box.suitable .suit-list li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 0;
      color: #16A34A;
      font-weight: bold;
      font-size: 1.1rem;
    }
    .suit-box.unsuitable .suit-list li {
      color: #7C2D12;
    }
    .suit-box.unsuitable .suit-list li::before {
      content: "✕";
      position: absolute;
      left: 0;
      top: 0;
      color: #DC2626;
      font-weight: bold;
      font-size: 1.1rem;
    }

    /* 5. 核心优势区：6卡片服务矩阵 */
    #service-matrix {
      background: #F8FAFC;
    }
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .matrix-card {
      background: #FFFFFF;
      padding: 32px 26px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .matrix-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-hover);
      transform: translateY(-5px);
    }
    .matrix-card .card-icon {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: var(--primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      margin-bottom: 20px;
    }
    .matrix-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .matrix-card p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 6. 热门车型/热门产品区 */
    #vehicle-fleet {
      background: #FFFFFF;
    }
    .fleet-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .fleet-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }
    .fleet-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-6px);
      border-color: #BFDBFE;
    }
    .fleet-card-img {
      height: 210px;
      position: relative;
    }
    .fleet-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .fleet-badge {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(15, 23, 42, 0.75);
      color: #FFFFFF;
      font-size: 0.75rem;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: 4px;
      backdrop-filter: blur(4px);
    }
    .fleet-badge.green {
      background: rgba(16, 185, 129, 0.85);
    }
    .fleet-card-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .fleet-card-body h3 {
      font-size: 1.3rem;
      font-weight: 700;
      margin-bottom: 6px;
    }
    .fleet-param-line {
      font-size: 0.88rem;
      color: var(--text-light);
      margin-bottom: 14px;
      display: flex;
      gap: 12px;
    }
    .fleet-card-body p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
      flex: 1;
    }
    .fleet-price-row {
      display: flex;
      align-items: baseline;
      justify-content: space-between;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }
    .fleet-price strong {
      font-size: 1.6rem;
      color: #DC2626;
      font-weight: 800;
    }
    .fleet-price span {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 7. 拼团与集约租车转化专区 */
    #group-rental {
      background: linear-gradient(135deg, #1E3A8A 0%, #0F52BA 100%);
      color: #FFFFFF;
      padding: 70px 0;
    }
    .group-rental-box {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: var(--radius-lg);
      padding: 40px;
      backdrop-filter: blur(12px);
    }
    .group-rental-grid {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 36px;
      align-items: center;
    }
    .group-left h3 {
      font-size: 1.85rem;
      font-weight: 700;
      margin-bottom: 14px;
    }
    .group-left p {
      font-size: 1rem;
      color: #E2E8F0;
      line-height: 1.7;
      margin-bottom: 22px;
    }
    .group-progress-wrap {
      margin-bottom: 24px;
    }
    .progress-bar-bg {
      height: 10px;
      background: rgba(255, 255, 255, 0.25);
      border-radius: 5px;
      overflow: hidden;
      margin-top: 8px;
    }
    .progress-bar-fill {
      height: 100%;
      width: 78%;
      background: var(--accent);
      border-radius: 5px;
    }
    .group-right-cards {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
    }
    .group-item-card {
      background: #FFFFFF;
      color: var(--text-main);
      padding: 20px;
      border-radius: var(--radius-md);
      box-shadow: 0 8px 20px rgba(0,0,0,0.15);
    }
    .group-item-card h4 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 6px;
    }
    .group-item-card .discount-tag {
      display: inline-block;
      font-size: 0.75rem;
      background: #FEF2F2;
      color: #DC2626;
      font-weight: 700;
      padding: 2px 6px;
      border-radius: 4px;
      margin-bottom: 10px;
    }
    .group-item-card p {
      font-size: 0.88rem;
      color: #64748B;
      line-height: 1.6;
      margin-bottom: 14px;
    }

    /* 8. 方案对比：自购 vs 租赁 */
    #solution-contrast {
      background-color: #F8FAFC;
    }
    .contrast-table-wrap {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .contrast-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .contrast-table th, .contrast-table td {
      padding: 20px 24px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.98rem;
    }
    .contrast-table th {
      background: #F1F5F9;
      font-weight: 700;
      color: var(--text-main);
    }
    .contrast-table th.highlight-col, .contrast-table td.highlight-col {
      background: #EFF6FF;
      color: var(--primary-dark);
      font-weight: 600;
      border-left: 2px solid #BFDBFE;
      border-right: 2px solid #BFDBFE;
    }
    .contrast-table tr:last-child td {
      border-bottom: none;
    }

    /* 9. 深色企业案例与调度实景 */
    #corporate-case {
      background: #0B132B;
      color: #F8FAFC;
    }
    .case-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
    }
    .case-card {
      background: #1E293B;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid #334155;
    }
    .case-card-img {
      height: 220px;
      position: relative;
    }
    .case-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .case-card-content {
      padding: 28px;
    }
    .case-card-content h3 {
      font-size: 1.3rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 10px;
    }
    .case-card-content p {
      font-size: 0.95rem;
      color: #94A3B8;
      line-height: 1.7;
      margin-bottom: 18px;
    }
    .case-metrics-badge {
      display: flex;
      gap: 20px;
      padding-top: 14px;
      border-top: 1px solid #334155;
    }
    .case-metrics-badge div strong {
      display: block;
      color: #38BDF8;
      font-size: 1.25rem;
    }
    .case-metrics-badge div span {
      font-size: 0.8rem;
      color: #94A3B8;
    }

    /* 10. 深度客户实录故事 */
    #user-story {
      background: #FFFFFF;
    }
    .story-card-horizontal {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      margin-bottom: 30px;
      box-shadow: var(--shadow-sm);
    }
    .story-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .story-content {
      padding: 36px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      background: #FFFFFF;
    }
    .story-tag {
      align-self: flex-start;
      font-size: 0.8rem;
      font-weight: 600;
      color: var(--primary);
      background: var(--primary-light);
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 12px;
    }
    .story-content h3 {
      font-size: 1.4rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .story-content p {
      font-size: 0.96rem;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 20px;
    }
    .story-quote-by {
      font-size: 0.88rem;
      font-weight: 600;
      color: #334155;
      border-left: 3px solid var(--primary);
      padding-left: 12px;
    }

    /* 11. 发展里程碑与服务足迹 */
    #milestone {
      background: #F8FAFC;
    }
    .milestone-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .milestone-step {
      background: #FFFFFF;
      padding: 26px 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .milestone-step::before {
      content: "";
      position: absolute;
      top: -8px;
      left: 20px;
      width: 16px;
      height: 16px;
      background: var(--primary);
      border: 3px solid #FFFFFF;
      border-radius: 50%;
      box-shadow: 0 0 0 2px var(--primary);
    }
    .milestone-step h3 {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 8px;
      margin-top: 4px;
    }
    .milestone-step h4 {
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .milestone-step p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 12. 平台保障体系与风控 */
    #security-guarantee {
      background: #FFFFFF;
    }
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .guarantee-card {
      background: #F8FAFC;
      border-radius: var(--radius-md);
      padding: 28px 22px;
      border: 1px solid var(--border-color);
      text-align: center;
      transition: all 0.3s ease;
    }
    .guarantee-card:hover {
      background: #EFF6FF;
      border-color: #93C5FD;
      transform: translateY(-4px);
    }
    .guarantee-icon {
      width: 56px;
      height: 56px;
      margin: 0 auto 16px;
      border-radius: 50%;
      background: #FFFFFF;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    }
    .guarantee-card h3 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .guarantee-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 13. 客户口碑评价 */
    #customer-reviews {
      background: #F8FAFC;
    }
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .review-card {
      background: #FFFFFF;
      padding: 30px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .review-stars {
      color: #F59E0B;
      font-size: 1.1rem;
      margin-bottom: 12px;
    }
    .review-text {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #F1F5F9;
      padding-top: 16px;
    }
    .review-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: 700;
      font-size: 1rem;
    }
    .review-name {
      font-weight: 700;
      font-size: 0.95rem;
      color: var(--text-main);
    }
    .review-role {
      font-size: 0.8rem;
      color: var(--text-light);
    }

    /* 14. 汽车租赁资讯与用车知识 */
    #news-insights {
      background: #FFFFFF;
    }
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      background: #FFFFFF;
      box-shadow: var(--shadow-sm);
    }
    .news-card-img {
      height: 180px;
    }
    .news-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-card-body {
      padding: 24px;
    }
    .news-date {
      font-size: 0.8rem;
      color: var(--text-light);
      margin-bottom: 8px;
    }
    .news-card-body h3 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.45;
    }
    .news-card-body p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 15. FAQ 手风琴 */
    #quick-faq {
      background: #F8FAFC;
    }
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      overflow: hidden;
      transition: all 0.2s ease;
    }
    .faq-question {
      padding: 18px 24px;
      font-weight: 600;
      font-size: 1.05rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #FFFFFF;
      user-select: none;
    }
    .faq-question:hover {
      background: #F8FAFC;
    }
    .faq-icon-arrow {
      transition: transform 0.3s ease;
      color: var(--primary);
      font-size: 1.1rem;
    }
    .faq-item.open .faq-icon-arrow {
      transform: rotate(180deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
      background: #FFFFFF;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.75;
      padding: 0 24px;
    }
    .faq-item.open .faq-answer {
      max-height: 500px;
      padding: 0 24px 22px;
      transition: max-height 0.4s ease-in-out;
    }

    /* 16. 转化预约表单与行动号召 */
    #booking-cta {
      background: linear-gradient(135deg, #091A3E 0%, #0F52BA 100%);
      color: #FFFFFF;
      padding: 80px 0;
    }
    .booking-wrapper {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 40px;
      align-items: center;
    }
    .booking-intro h2 {
      font-size: 2.3rem;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 18px;
    }
    .booking-intro p {
      font-size: 1.05rem;
      color: #E2E8F0;
      line-height: 1.75;
      margin-bottom: 28px;
    }
    .booking-hotline-box {
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      backdrop-filter: blur(8px);
    }
    .booking-hotline-box span {
      display: block;
      font-size: 0.85rem;
      color: #93C5FD;
      margin-bottom: 4px;
    }
    .booking-hotline-box strong {
      font-size: 1.75rem;
      color: #FBBF24;
      font-weight: 800;
      letter-spacing: 0.5px;
    }
    .booking-form-box {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 36px;
      color: var(--text-main);
      box-shadow: 0 20px 40px rgba(0,0,0,0.25);
    }
    .booking-form-box h3 {
      font-size: 1.35rem;
      font-weight: 700;
      margin-bottom: 20px;
      color: var(--primary-dark);
      text-align: center;
    }
    .booking-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 18px;
    }
    .booking-grid .form-group.full {
      grid-column: span 2;
    }
    .form-group label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      color: #475569;
      margin-bottom: 6px;
    }
    .form-group input, .form-group select {
      width: 100%;
      height: 44px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 0 12px;
      font-size: 0.95rem;
      background: #F8FAFC;
      outline: none;
    }
    .form-group input:focus, .form-group select:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(15, 82, 186, 0.15);
    }
    .form-privacy-note {
      font-size: 0.8rem;
      color: var(--text-light);
      margin-top: 14px;
      text-align: center;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
    }

    /* 页脚 Footer */
    .site-footer {
      background: #091024;
      color: #94A3B8;
      font-size: 0.92rem;
      padding: 60px 0 24px;
      border-top: 1px solid #1E293B;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
      gap: 36px;
      margin-bottom: 48px;
    }
    .footer-col h4 {
      color: #FFFFFF;
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .footer-logo {
      font-size: 1.4rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 14px;
      display: block;
    }
    .footer-col p {
      line-height: 1.7;
      margin-bottom: 14px;
      font-size: 0.9rem;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: #38BDF8;
      padding-left: 4px;
    }
    .footer-contact-item {
      margin-bottom: 10px;
      display: flex;
      align-items: flex-start;
      gap: 8px;
      line-height: 1.5;
    }
    .footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.85rem;
    }
    .footer-bottom a {
      color: #64748B;
    }
    .footer-bottom a:hover {
      color: #94A3B8;
    }

    /* 响应式断点适配 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metric-card {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
      }
      .metric-card:nth-last-child(-n+2) {
        border-bottom: none;
      }
      .audience-grid, .matrix-grid, .fleet-grid, .news-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .group-rental-grid {
        grid-template-columns: 1fr;
      }
      .booking-wrapper {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .milestone-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .nav-menu {
        position: fixed;
        top: 74px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        padding: 24px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        display: none;
        gap: 16px;
      }
      .nav-menu.active {
        display: flex;
      }
      .nav-cta {
        display: none;
      }
      .hero-content h1 {
        font-size: 2rem;
      }
      .hero-specs-row {
        grid-template-columns: 1fr;
      }
      .metrics-grid {
        grid-template-columns: 1fr;
      }
      .audience-grid, .matrix-grid, .fleet-grid, .news-grid, .reviews-grid, .case-grid, .suitability-wrapper {
        grid-template-columns: 1fr;
      }
      .story-card-horizontal {
        grid-template-columns: 1fr;
      }
      .story-img-wrap {
        height: 220px;
      }
      .milestone-timeline {
        grid-template-columns: 1fr;
      }
      .guarantee-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .booking-grid {
        grid-template-columns: 1fr;
      }
      .booking-grid .form-group.full {
        grid-column: span 1;
      }
      .contrast-table-wrap {
        overflow-x: auto;
      }
      .contrast-table {
        min-width: 580px;
      }
    }