/* roulang page: index */
:root {
      --primary-dark: #0A1118;
      --primary-navy: #111A24;
      --accent-gold: #C5A880;
      --accent-amber: #D97706;
      --accent-hover: #b39266;
      --bg-light: #F8F9FA;
      --bg-white: #FFFFFF;
      --bg-card: #FFFFFF;
      --bg-subtle: #EDF1F5;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --text-light: #F1F5F9;
      --border-color: #E2E8F0;
      --border-dark: #223040;
      --shadow-sm: 0 4px 20px -2px rgba(10, 17, 24, 0.05);
      --shadow-lg: 0 12px 30px -4px rgba(10, 17, 24, 0.12);
      --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      --radius-sm: 8px;
    }

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

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

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
      line-height: 1.75;
      letter-spacing: 0.02em;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

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

    button, input, select {
      font-family: inherit;
      font-size: 1rem;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部提示条 */
    .top-bar {
      background-color: var(--primary-dark);
      color: #94A3B8;
      font-size: 0.825rem;
      border-bottom: 1px solid var(--border-dark);
      padding: 8px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-meta {
      display: flex;
      gap: 20px;
    }
    .top-meta span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .top-links {
      display: flex;
      gap: 16px;
    }
    .top-links a:hover {
      color: var(--accent-gold);
    }

    /* 主导航 */
    .main-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      transition: var(--transition-smooth);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--primary-dark);
      letter-spacing: 0.04em;
    }
    .brand-icon {
      width: 36px;
      height: 36px;
      background: var(--primary-dark);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-gold);
    }
    .nav-links {
      display: flex;
      list-style: none;
      gap: 28px;
    }
    .nav-links a {
      font-size: 0.95rem;
      font-weight: 500;
      color: #334155;
      padding: 8px 0;
      position: relative;
    }
    .nav-links a:hover,
    .nav-links a.active {
      color: var(--accent-amber);
    }
    .nav-cta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background-color: var(--primary-dark);
      color: var(--accent-gold);
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 0.925rem;
      border: 1px solid var(--accent-gold);
    }
    .nav-cta:hover {
      background-color: var(--accent-gold);
      color: var(--primary-dark);
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
      color: var(--primary-dark);
    }

    /* 板块通用 */
    .section {
      padding: 96px 0;
      position: relative;
    }
    .section-title-wrap {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 56px auto;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.1em;
      color: var(--accent-amber);
      background: rgba(217, 119, 6, 0.1);
      padding: 4px 14px;
      border-radius: 50px;
      margin-bottom: 12px;
      border: 1px solid rgba(217, 119, 6, 0.2);
    }
    .section-title {
      font-size: 2.15rem;
      font-weight: 700;
      color: var(--primary-dark);
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.8;
    }

    /* 板块1：Hero 视频感沉浸横幅 */
    .hero-section {
      position: relative;
      background-color: var(--primary-dark);
      background-image: linear-gradient(180deg, rgba(10, 17, 24, 0.72) 0%, rgba(10, 17, 24, 0.92) 100%), url('/assets/images/2676be8644da1085.webp');
      background-size: cover;
      background-position: center;
      min-height: 85vh;
      display: flex;
      align-items: center;
      color: var(--text-light);
      padding: 100px 0 80px 0;
    }
    .hero-content {
      max-width: 860px;
      margin: 0 auto;
      text-align: center;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(197, 168, 128, 0.15);
      border: 1px solid var(--accent-gold);
      color: var(--accent-gold);
      padding: 6px 18px;
      border-radius: 50px;
      font-size: 0.875rem;
      margin-bottom: 24px;
    }
    .hero-title {
      font-size: 3rem;
      font-weight: 700;
      line-height: 1.25;
      margin-bottom: 22px;
      letter-spacing: -0.01em;
      color: #FFFFFF;
    }
    .hero-subtitle {
      font-size: 1.125rem;
      color: #CBD5E1;
      margin-bottom: 36px;
      line-height: 1.85;
      max-width: 760px;
      margin-left: auto;
      margin-right: auto;
    }
    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 18px;
      margin-bottom: 48px;
      flex-wrap: wrap;
    }
    .btn-primary {
      background-color: var(--accent-gold);
      color: var(--primary-dark);
      font-weight: 600;
      padding: 14px 34px;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      gap: 10px;
      border: 1px solid var(--accent-gold);
      transition: var(--transition-smooth);
    }
    .btn-primary:hover {
      background-color: var(--accent-hover);
      transform: translateY(-2px);
      box-shadow: 0 10px 25px rgba(197, 168, 128, 0.25);
    }
    .btn-secondary {
      background: rgba(255, 255, 255, 0.08);
      color: #FFFFFF;
      font-weight: 600;
      padding: 14px 28px;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      gap: 10px;
      border: 1px solid rgba(255, 255, 255, 0.25);
      backdrop-filter: blur(8px);
      transition: var(--transition-smooth);
    }
    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.18);
      transform: translateY(-2px);
    }
    .hero-calculator {
      background: rgba(17, 26, 36, 0.85);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-sm);
      padding: 24px;
      backdrop-filter: blur(12px);
      box-shadow: var(--shadow-lg);
      max-width: 960px;
      margin: 0 auto;
    }
    .calc-form {
      display: grid;
      grid-template-columns: repeat(4, 1fr) auto;
      gap: 14px;
      align-items: center;
    }
    .calc-group {
      text-align: left;
    }
    .calc-group label {
      display: block;
      font-size: 0.75rem;
      color: #94A3B8;
      margin-bottom: 6px;
      text-transform: uppercase;
    }
    .calc-input {
      width: 100%;
      background: rgba(255, 255, 255, 0.07);
      border: 1px solid rgba(255, 255, 255, 0.18);
      border-radius: 4px;
      padding: 10px 12px;
      color: #FFFFFF;
      font-size: 0.9rem;
    }
    .calc-input:focus {
      outline: none;
      border-color: var(--accent-gold);
    }
    .calc-btn {
      height: 44px;
      margin-top: 18px;
      background: var(--accent-gold);
      color: var(--primary-dark);
      border: none;
      border-radius: 4px;
      font-weight: 600;
      padding: 0 20px;
      cursor: pointer;
      transition: var(--transition-smooth);
      white-space: nowrap;
    }
    .calc-btn:hover {
      background: #dfc29c;
    }

    /* 板块2：痛点剖析 */
    .bg-light-contrast {
      background-color: #F1F4F8;
    }
    .painpoints-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .pain-card {
      background: var(--bg-white);
      padding: 32px 24px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition-smooth);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .pain-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-3px);
      border-color: #CBD5E1;
    }
    .pain-icon-wrapper {
      width: 48px;
      height: 48px;
      background: #FEE2E2;
      color: #DC2626;
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
    }
    .pain-card h3 {
      font-size: 1.15rem;
      margin-bottom: 12px;
      color: var(--primary-dark);
      font-weight: 600;
    }
    .pain-card p {
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块3：解决方案 */
    .solution-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .solution-img-box {
      position: relative;
      border-radius: var(--radius-sm);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
    }
    .solution-img-box img {
      width: 100%;
      height: 440px;
      object-fit: cover;
    }
    .solution-badge-float {
      position: absolute;
      bottom: 24px;
      left: 24px;
      right: 24px;
      background: rgba(10, 17, 24, 0.88);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255, 255, 255, 0.15);
      padding: 16px 20px;
      border-radius: var(--radius-sm);
      color: #FFFFFF;
      font-size: 0.875rem;
    }
    .solution-text h2 {
      font-size: 2.15rem;
      color: var(--primary-dark);
      margin-bottom: 20px;
      line-height: 1.35;
    }
    .solution-text p {
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.8;
      font-size: 1rem;
    }
    .tech-metric-box {
      background: var(--bg-subtle);
      border-left: 4px solid var(--accent-gold);
      padding: 16px 20px;
      margin-bottom: 24px;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    }
    .tech-metric-box strong {
      color: var(--primary-dark);
      display: block;
      margin-bottom: 4px;
    }
    .feature-check-list {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 24px;
    }
    .feature-check-list li {
      font-size: 0.925rem;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* 板块4：六维保障标准 */
    .standards-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .standard-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 32px 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition-smooth);
    }
    .standard-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-3px);
      border-color: var(--accent-gold);
    }
    .standard-icon {
      width: 52px;
      height: 52px;
      background: rgba(197, 168, 128, 0.12);
      color: var(--accent-amber);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
    }
    .standard-card h3 {
      font-size: 1.25rem;
      color: var(--primary-dark);
      margin-bottom: 12px;
    }
    .standard-card p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块5：车型矩阵 */
    .fleet-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .fleet-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition-smooth);
      display: flex;
      flex-direction: column;
    }
    .fleet-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: #CBD5E1;
    }
    .fleet-image {
      height: 220px;
      overflow: hidden;
      background: #F1F5F9;
    }
    .fleet-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .fleet-card:hover .fleet-image img {
      transform: scale(1.05);
    }
    .fleet-info {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .fleet-tag {
      font-size: 0.75rem;
      font-weight: 600;
      color: var(--accent-amber);
      text-transform: uppercase;
      margin-bottom: 6px;
    }
    .fleet-info h3 {
      font-size: 1.25rem;
      color: var(--primary-dark);
      margin-bottom: 10px;
    }
    .fleet-specs {
      display: flex;
      gap: 16px;
      margin-bottom: 16px;
      font-size: 0.85rem;
      color: #64748B;
      padding-bottom: 14px;
      border-bottom: 1px solid var(--border-color);
    }
    .fleet-specs span {
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .fleet-desc {
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .fleet-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-top: auto;
    }
    .fleet-price {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary-dark);
    }
    .fleet-price small {
      font-size: 0.8rem;
      font-weight: normal;
      color: #94A3B8;
    }
    .btn-fleet {
      padding: 8px 18px;
      background: var(--primary-dark);
      color: #FFFFFF;
      border-radius: 4px;
      font-size: 0.875rem;
      font-weight: 500;
    }
    .btn-fleet:hover {
      background: var(--accent-amber);
    }

    /* 板块6：深色履约底线 */
    .philosophy-section {
      background-color: var(--primary-dark);
      color: var(--text-light);
      position: relative;
    }
    .philosophy-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .philosophy-text h2 {
      font-size: 2.25rem;
      color: #FFFFFF;
      line-height: 1.35;
      margin-bottom: 24px;
    }
    .philosophy-text p {
      color: #94A3B8;
      font-size: 1.05rem;
      line-height: 1.8;
      margin-bottom: 32px;
    }
    .security-cards-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .sec-card {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 24px;
      border-radius: var(--radius-sm);
    }
    .sec-card h4 {
      font-size: 1.1rem;
      color: var(--accent-gold);
      margin-bottom: 8px;
    }
    .sec-card p {
      font-size: 0.875rem;
      color: #CBD5E1;
      line-height: 1.6;
      margin: 0;
    }

    /* 板块7：预订流程 */
    .steps-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .step-item {
      background: var(--bg-white);
      padding: 32px 24px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      position: relative;
    }
    .step-number {
      font-size: 2rem;
      font-weight: 800;
      color: rgba(197, 168, 128, 0.35);
      margin-bottom: 12px;
      line-height: 1;
    }
    .step-item h3 {
      font-size: 1.15rem;
      color: var(--primary-dark);
      margin-bottom: 10px;
    }
    .step-item p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块8：数据指标 */
    .stats-section {
      background: #FFFFFF;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 60px 0;
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }
    .stat-number {
      font-size: 2.75rem;
      font-weight: 800;
      color: var(--primary-dark);
      line-height: 1.1;
      margin-bottom: 8px;
      font-variant-numeric: tabular-nums;
    }
    .stat-number span {
      color: var(--accent-amber);
      font-size: 1.75rem;
    }
    .stat-label {
      font-size: 0.95rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 板块9：真实体验故事 */
    .stories-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .story-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 36px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .story-badge {
      font-size: 0.8rem;
      font-weight: 600;
      color: var(--accent-amber);
      margin-bottom: 12px;
    }
    .story-quote {
      font-size: 1.05rem;
      color: var(--primary-dark);
      line-height: 1.8;
      font-style: italic;
      margin-bottom: 24px;
    }
    .story-user {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid var(--border-color);
      padding-top: 18px;
    }
    .user-avatar-placeholder {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-dark);
      color: var(--accent-gold);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      font-size: 0.9rem;
    }
    .user-meta strong {
      display: block;
      font-size: 0.95rem;
      color: var(--primary-dark);
    }
    .user-meta span {
      font-size: 0.825rem;
      color: var(--text-muted);
    }

    /* 板块10：评价反馈 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testi-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 28px;
      box-shadow: var(--shadow-sm);
    }
    .testi-stars {
      color: #F59E0B;
      font-size: 1rem;
      letter-spacing: 2px;
      margin-bottom: 14px;
    }
    .testi-text {
      font-size: 0.95rem;
      color: #334155;
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .testi-author {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      color: var(--text-muted);
      border-top: 1px dashed var(--border-color);
      padding-top: 14px;
    }

    /* 板块11：接驳指南资讯 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background: var(--bg-white);
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition-smooth);
      display: flex;
      flex-direction: column;
    }
    .news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }
    .news-thumb {
      height: 200px;
      overflow: hidden;
      background: #F1F5F9;
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .news-card:hover .news-thumb img {
      transform: scale(1.05);
    }
    .news-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .news-date {
      font-size: 0.8rem;
      color: #94A3B8;
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 1.15rem;
      color: var(--primary-dark);
      font-weight: 600;
      line-height: 1.45;
      margin-bottom: 10px;
    }
    .news-excerpt {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
      flex-grow: 1;
    }
    .news-link {
      color: var(--accent-amber);
      font-weight: 600;
      font-size: 0.875rem;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 板块12：FAQ手风琴 */
    .faq-accordion {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      overflow: hidden;
      transition: var(--transition-smooth);
    }
    .faq-header {
      width: 100%;
      padding: 20px 24px;
      background: none;
      border: none;
      text-align: left;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--primary-dark);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }
    .faq-icon {
      font-size: 1.25rem;
      color: var(--accent-amber);
      transition: transform 0.3s ease;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }
    .faq-body {
      padding: 0 24px 20px 24px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.75;
      display: none;
    }
    .faq-item.active .faq-body {
      display: block;
    }

    /* 板块13：收口转化CTA */
    .cta-wrapper {
      background: linear-gradient(135deg, #0A1118 0%, #172331 100%);
      border-radius: var(--radius-sm);
      padding: 64px 48px;
      color: #FFFFFF;
      text-align: center;
      border: 1px solid rgba(197, 168, 128, 0.3);
      box-shadow: var(--shadow-lg);
    }
    .cta-wrapper h2 {
      font-size: 2.25rem;
      color: #FFFFFF;
      margin-bottom: 16px;
    }
    .cta-wrapper p {
      color: #CBD5E1;
      font-size: 1.1rem;
      max-width: 680px;
      margin: 0 auto 36px auto;
      line-height: 1.8;
    }
    .cta-controls {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 18px;
      flex-wrap: wrap;
    }
    .cta-phone {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--accent-gold);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    /* 页脚 */
    .site-footer {
      background-color: var(--primary-dark);
      color: #94A3B8;
      padding: 80px 0 32px 0;
      border-top: 1px solid var(--border-dark);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 48px;
      margin-bottom: 64px;
    }
    .footer-brand h3 {
      color: #FFFFFF;
      font-size: 1.35rem;
      margin-bottom: 16px;
      font-weight: 700;
    }
    .footer-brand p {
      font-size: 0.925rem;
      line-height: 1.8;
      color: #94A3B8;
      max-width: 340px;
    }
    .footer-col h4 {
      color: #FFFFFF;
      font-size: 1rem;
      margin-bottom: 20px;
      font-weight: 600;
      letter-spacing: 0.04em;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 12px;
    }
    .footer-links a {
      font-size: 0.9rem;
      color: #94A3B8;
    }
    .footer-links a:hover {
      color: var(--accent-gold);
    }
    .footer-contact-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 0.9rem;
      margin-bottom: 12px;
      line-height: 1.6;
    }
    .footer-bottom {
      border-top: 1px solid var(--border-dark);
      padding-top: 32px;
      text-align: center;
      font-size: 0.85rem;
      color: #64748B;
    }
    .footer-bottom p {
      margin-bottom: 8px;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .painpoints-grid, .steps-row, .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .fleet-grid, .standards-grid, .news-grid, .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 36px;
      }
      .calc-form {
        grid-template-columns: repeat(2, 1fr);
      }
      .calc-btn {
        grid-column: span 2;
        margin-top: 0;
      }
    }
    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .nav-links, .nav-cta {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-title {
        font-size: 2.15rem;
      }
      .solution-container, .philosophy-grid, .stories-container {
        grid-template-columns: 1fr;
      }
      .painpoints-grid, .standards-grid, .fleet-grid, .steps-row, .news-grid, .testimonials-grid, .stats-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .calc-form {
        grid-template-columns: 1fr;
      }
      .calc-btn {
        grid-column: span 1;
      }
      .section {
        padding: 64px 0;
      }
      .cta-wrapper {
        padding: 40px 20px;
      }
    }

    /* 移动端菜单抽屉 */
    .mobile-drawer {
      display: none;
      position: fixed;
      top: 76px;
      left: 0;
      right: 0;
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-lg);
      padding: 20px;
      z-index: 99;
    }
    .mobile-drawer.open {
      display: block;
    }
    .mobile-drawer ul {
      list-style: none;
    }
    .mobile-drawer li {
      margin-bottom: 14px;
    }
    .mobile-drawer a {
      font-size: 1.05rem;
      color: var(--primary-dark);
      font-weight: 500;
      display: block;
      padding: 8px 0;
    }
    .mobile-drawer-cta {
      margin-top: 16px;
      width: 100%;
      text-align: center;
      display: block;
    }