/* roulang page: index */
:root {
      --primary: #0F52BA;
      --primary-hover: #0b3d8c;
      --primary-light: #eef4fc;
      --secondary: #00A86B;
      --secondary-hover: #008756;
      --text-main: #0F172A;
      --text-muted: #475569;
      --bg-page: #F8FAFC;
      --bg-card: #FFFFFF;
      --bg-dark: #0B1329;
      --border: #E2E8F0;
      --shadow-sm: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
      --shadow-lg: 0 20px 25px -5px rgba(15, 82, 186, 0.1), 0 8px 10px -6px rgba(15, 82, 186, 0.06);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-full: 9999px;
      --container: 1200px;
    }
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      font-size: 16px;
      line-height: 1.7;
      color: var(--text-muted);
      background-color: var(--bg-page);
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.25s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, input, select {
      font: inherit;
    }
    .container {
      width: 100%;
      max-width: var(--container);
      margin: 0 auto;
      padding: 0 24px;
    }
    /* 顶部双行导航 */
    .top-bar {
      background-color: #F1F5F9;
      border-bottom: 1px solid var(--border);
      font-size: 13px;
      color: #64748B;
      padding: 8px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-bar-right {
      display: flex;
      gap: 20px;
    }
    .top-bar-right a:hover {
      color: var(--primary);
    }
    .header-main {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border);
      box-shadow: 0 2px 10px rgba(0,0,0,0.02);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      font-size: 22px;
      font-weight: 800;
      color: var(--primary);
      display: flex;
      align-items: center;
      gap: 8px;
      letter-spacing: -0.5px;
    }
    .brand-logo span {
      background: var(--primary);
      color: #fff;
      font-size: 11px;
      padding: 2px 6px;
      border-radius: 4px;
      font-weight: 600;
    }
    .nav-links {
      display: flex;
      gap: 28px;
      list-style: none;
    }
    .nav-links a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      position: relative;
      padding: 6px 0;
    }
    .nav-links a:hover, .nav-links a.active {
      color: var(--primary);
    }
    .nav-links a.active::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 15px;
      transition: all 0.25s ease;
      cursor: pointer;
      border: 1px solid transparent;
      text-align: center;
    }
    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 4px 12px rgba(15, 82, 186, 0.25);
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(15, 82, 186, 0.35);
    }
    .btn-secondary {
      background: var(--secondary);
      color: #fff;
    }
    .btn-secondary:hover {
      background: var(--secondary-hover);
      transform: translateY(-2px);
    }
    .btn-outline {
      border-color: var(--border);
      background: #fff;
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: var(--primary-light);
    }
    /* 通用板块与排版 */
    section {
      padding: 84px 0;
      position: relative;
    }
    .section-alt {
      background-color: #FFFFFF;
    }
    .section-dark {
      background-color: var(--bg-dark);
      color: #94A3B8;
    }
    .section-dark .title-h2 {
      color: #FFFFFF;
    }
    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 52px;
    }
    .section-badge {
      display: inline-block;
      padding: 4px 14px;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      background: var(--primary-light);
      border-radius: var(--radius-full);
      margin-bottom: 14px;
    }
    .section-badge.badge-green {
      color: var(--secondary);
      background: #e6f6f0;
    }
    .title-h2 {
      font-size: 32px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .subtitle-p {
      font-size: 16px;
      line-height: 1.7;
    }
    /* Section 1: Hero 斜切与对比选型 */
    .hero-wrap {
      position: relative;
      padding: 80px 0 100px;
      background: linear-gradient(135deg, #09377C 0%, #0F52BA 100%);
      color: #FFFFFF;
      overflow: hidden;
      clip-path: polygon(0 0, 100% 0, 100% 95%, 0 100%);
    }
    .hero-bg-overlay {
      position: absolute;
      inset: 0;
      opacity: 0.18;
      background-image: url('/assets/images/6072d5d1ea8074de.jpg');
      background-size: cover;
      background-position: center;
      pointer-events: none;
    }
    .hero-grid {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-content p {
      font-size: 17px;
      line-height: 1.8;
      margin-bottom: 32px;
      color: #E2E8F0;
    }
    .hero-btns {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 36px;
    }
    .hero-highlights {
      display: flex;
      gap: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.15);
      padding-top: 24px;
    }
    .hero-highlight-item {
      display: flex;
      flex-direction: column;
    }
    .hero-highlight-item strong {
      font-size: 20px;
      color: #6EE7B7;
    }
    .hero-highlight-item span {
      font-size: 13px;
      color: #CBD5E1;
    }
    /* Hero 对比选型卡片 */
    .compare-card-box {
      background: rgba(255, 255, 255, 0.98);
      border-radius: var(--radius-md);
      padding: 30px;
      color: var(--text-main);
      box-shadow: 0 25px 40px -15px rgba(0, 0, 0, 0.35);
      position: relative;
      border: 2px solid #6EE7B7;
    }
    .compare-ribbon {
      position: absolute;
      top: -14px;
      right: 24px;
      background: var(--secondary);
      color: #fff;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 14px;
      border-radius: var(--radius-full);
      box-shadow: 0 4px 10px rgba(0, 168, 107, 0.4);
    }
    .compare-header {
      border-bottom: 1px solid var(--border);
      padding-bottom: 18px;
      margin-bottom: 18px;
    }
    .compare-header h3 {
      font-size: 20px;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: baseline;
    }
    .compare-header h3 span {
      font-size: 26px;
      color: var(--primary);
      font-weight: 800;
    }
    .compare-list {
      list-style: none;
      margin-bottom: 24px;
    }
    .compare-list li {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .compare-list li::before {
      content: "✓";
      color: var(--secondary);
      font-weight: bold;
    }
    /* Section 2: KPI看板 */
    .kpi-band {
      background: #FFFFFF;
      border-bottom: 1px solid var(--border);
      padding: 40px 0;
    }
    .kpi-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .kpi-item h3 {
      font-size: 38px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .kpi-item p {
      font-size: 14px;
      color: var(--text-muted);
    }
    /* Section 3: 服务矩阵 (Fleet) */
    .card-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .fleet-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }
    .fleet-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: #BFDBFE;
    }
    .fleet-img-wrap {
      position: relative;
      height: 210px;
      background: #F1F5F9;
      overflow: hidden;
    }
    .fleet-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .fleet-card:hover .fleet-img-wrap img {
      transform: scale(1.04);
    }
    .fleet-tag {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(15, 23, 42, 0.75);
      color: #fff;
      font-size: 12px;
      padding: 3px 10px;
      border-radius: var(--radius-sm);
      backdrop-filter: blur(4px);
    }
    .fleet-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .fleet-title {
      font-size: 20px;
      color: var(--text-main);
      font-weight: 700;
      margin-bottom: 8px;
    }
    .fleet-price {
      font-size: 22px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .fleet-price small {
      font-size: 13px;
      font-weight: normal;
      color: var(--text-muted);
    }
    .fleet-spec-bar {
      display: flex;
      gap: 12px;
      font-size: 13px;
      color: var(--text-muted);
      border-top: 1px dashed var(--border);
      padding-top: 12px;
      margin-bottom: 18px;
    }
    .fleet-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    /* Section 4: 结果对比 (Before/After 对比我们 vs 传统) */
    .compare-table-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .compare-table th, .compare-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border);
      font-size: 15px;
    }
    .compare-table th {
      background: #F8FAFC;
      color: var(--text-main);
      font-weight: 700;
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .compare-table .highlight-col {
      background: rgba(15, 82, 186, 0.03);
      color: var(--primary);
      font-weight: 600;
    }
    .tag-diff-yes {
      color: var(--secondary);
      font-weight: 700;
    }
    .tag-diff-no {
      color: #94A3B8;
    }
    /* Section 5: 深度架构与软硬结合 (Section 2/Technology) */
    .grid-2col {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .tech-panel {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }
    .tech-feature-item {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      margin-bottom: 24px;
    }
    .tech-feature-item:last-child {
      margin-bottom: 0;
    }
    .tech-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      flex-shrink: 0;
    }
    /* Section 6: 核心优势六宫格 */
    .card-grid-6 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .feature-box {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: all 0.3s ease;
    }
    .feature-box:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }
    .feature-box h4 {
      font-size: 18px;
      color: var(--text-main);
      margin: 12px 0 8px;
    }
    .feature-box p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }
    /* Section 7: 智能云控与动态调度 (深色带) */
    .cloud-dashboard-mock {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-md);
      padding: 32px;
    }
    .cloud-stat-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-bottom: 24px;
    }
    .cloud-stat-card {
      background: rgba(255, 255, 255, 0.03);
      padding: 18px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.08);
    }
    .cloud-stat-card strong {
      font-size: 24px;
      color: #6EE7B7;
      display: block;
      margin-bottom: 4px;
    }
    .cloud-stat-card span {
      font-size: 13px;
      color: #94A3B8;
    }
    /* Section 8: 真实租客体验与服务评价 */
    .review-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-user {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 16px;
    }
    .review-avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      overflow: hidden;
      background: #E2E8F0;
    }
    .review-avatar img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .review-stars {
      color: #F59E0B;
      font-size: 14px;
      margin-bottom: 4px;
    }
    .review-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .review-meta {
      font-size: 12px;
      color: #94A3B8;
      border-top: 1px solid var(--border);
      padding-top: 10px;
      display: flex;
      justify-content: space-between;
    }
    /* Section 9: 履约四步流程 */
    .process-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .step-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 28px 20px;
      text-align: center;
      position: relative;
    }
    .step-num {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
    }
    .step-card h4 {
      font-size: 17px;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .step-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .promise-bar {
      margin-top: 40px;
      background: #EFF6FF;
      border: 1px solid #BFDBFE;
      border-radius: var(--radius-md);
      padding: 18px 28px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      color: var(--primary);
      font-weight: 600;
      font-size: 15px;
    }
    /* Section 10: 资讯列表 */
    .news-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }
    .news-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }
    .news-card-img {
      height: 180px;
      overflow: hidden;
    }
    .news-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-card-body {
      padding: 22px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .news-date {
      font-size: 12px;
      color: #94A3B8;
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.4;
      margin-bottom: 10px;
    }
    .news-summary {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 16px;
    }
    /* Section 11: 常见问题 FAQ (手风琴) */
    .faq-container {
      max-width: 920px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      overflow: hidden;
    }
    .faq-question {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      background: #FFFFFF;
      transition: background-color 0.2s ease;
    }
    .faq-question:hover {
      background: #F8FAFC;
      color: var(--primary);
    }
    .faq-icon {
      font-size: 18px;
      color: var(--primary);
      transition: transform 0.3s ease;
    }
    .faq-answer {
      display: none;
      padding: 0 24px 20px 24px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      border-top: 1px solid transparent;
    }
    .faq-item.active .faq-answer {
      display: block;
      border-top-color: #F1F5F9;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }
    /* Section 12: 底部行动转化区 CTA */
    .download-banner {
      background: linear-gradient(135deg, #0F172A 0%, #0F52BA 100%);
      border-radius: var(--radius-md);
      padding: 60px 48px;
      color: #FFFFFF;
      text-align: center;
    }
    .download-banner h2 {
      font-size: 34px;
      font-weight: 800;
      margin-bottom: 14px;
      color: #FFFFFF;
    }
    .download-banner p {
      font-size: 16px;
      color: #CBD5E1;
      max-width: 680px;
      margin: 0 auto 36px;
    }
    .download-btn-group {
      display: flex;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
    }
    .download-btn-card {
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.24);
      padding: 12px 24px;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      gap: 12px;
      color: #FFFFFF;
      backdrop-filter: blur(8px);
      transition: all 0.25s ease;
    }
    .download-btn-card:hover {
      background: rgba(255, 255, 255, 0.22);
      transform: translateY(-2px);
    }
    .download-btn-card strong {
      display: block;
      font-size: 15px;
      text-align: left;
    }
    .download-btn-card span {
      display: block;
      font-size: 11px;
      color: #94A3B8;
      text-align: left;
    }
    /* 浮动吸底转化条 */
    .floating-cta-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      z-index: 99;
      background: rgba(15, 23, 42, 0.95);
      backdrop-filter: blur(12px);
      color: #FFFFFF;
      padding: 12px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.15);
      box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.25);
    }
    .floating-cta-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .floating-text strong {
      font-size: 16px;
      color: #6EE7B7;
      margin-right: 8px;
    }
    .floating-text span {
      font-size: 13px;
      color: #CBD5E1;
    }
    /* 页脚 Footer */
    footer {
      background: #0B1329;
      color: #94A3B8;
      padding: 60px 0 100px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-col h4 {
      color: #FFFFFF;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: #FFFFFF;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      font-size: 13px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
    }
    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid, .grid-2col {
        grid-template-columns: 1fr;
      }
      .card-grid-3, .card-grid-6 {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .nav-links {
        display: none;
      }
      .hero-content h1 {
        font-size: 32px;
      }
      .title-h2 {
        font-size: 26px;
      }
      .kpi-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px;
      }
      .card-grid-3, .card-grid-6, .process-steps {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .floating-cta-inner {
        flex-direction: column;
        gap: 10px;
        text-align: center;
      }
      .floating-text span {
        display: none;
      }
    }