/* roulang page: index */
:root {
      --primary: #111625;
      --primary-dark: #0a0e18;
      --primary-light: #1b233a;
      --accent: #F25A24;
      --accent-hover: #d94b1a;
      --accent-light: #fff2ed;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --text-light: #94a3b8;
      --bg-body: #f8fafc;
      --bg-white: #ffffff;
      --bg-dark: #0D111A;
      --bg-card-dark: #161c2b;
      --border-color: #e2e8f0;
      --border-dark: rgba(255, 255, 255, 0.08);
      --radius-sm: 4px;
      --radius-md: 8px;
      --radius-lg: 12px;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
      --shadow-card: 0 4px 20px -2px rgba(17, 22, 37, 0.08);
      --shadow-hover: 0 12px 30px -4px rgba(17, 22, 37, 0.16);
      --font-num: "DIN", -apple-system, "SF Pro Display", monospace;
      --font-base: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

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

    body {
      font-family: var(--font-base);
      background-color: var(--bg-body);
      color: var(--text-main);
      line-height: 1.7;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease, background-color 0.2s ease;
    }

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

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

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

    /* 顶部通栏 */
    .top-bar {
      background-color: var(--primary-dark);
      color: var(--text-light);
      font-size: 0.85rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      padding: 8px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
    }
    .top-info-list {
      display: flex;
      gap: 20px;
      align-items: center;
      list-style: none;
    }
    .top-info-list li i {
      color: var(--accent);
      margin-right: 6px;
    }
    .top-phone-badge {
      color: #fff;
      font-weight: 600;
      letter-spacing: 0.5px;
    }

    /* 主导航 */
    .main-header {
      background-color: #ffffff;
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    }
    .nav-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .logo-icon-box {
      width: 44px;
      height: 44px;
      background: var(--primary);
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      font-size: 1.35rem;
    }
    .logo-text-group h2 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.5px;
      line-height: 1.2;
    }
    .logo-text-group span {
      font-size: 0.75rem;
      color: var(--text-muted);
      letter-spacing: 1px;
      text-transform: uppercase;
      font-family: var(--font-num);
    }

    .nav-links {
      display: flex;
      list-style: none;
      gap: 24px;
      align-items: center;
    }
    .nav-links a {
      font-weight: 600;
      font-size: 0.95rem;
      color: var(--text-main);
      padding: 6px 0;
      position: relative;
    }
    .nav-links a:hover, .nav-links a.active {
      color: var(--accent);
    }
    .nav-links a::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0%;
      height: 2px;
      background: var(--accent);
      transition: width 0.25s ease;
    }
    .nav-links a:hover::after, .nav-links a.active::after {
      width: 100%;
    }
    .nav-cta-btn {
      background: var(--accent);
      color: #fff;
      font-weight: 600;
      padding: 10px 22px;
      border-radius: var(--radius-md);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border: 1px solid var(--accent);
      transition: all 0.2s ease;
    }
    .nav-cta-btn:hover {
      background: var(--accent-hover);
      color: #fff;
      transform: translateY(-1px);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--primary);
      cursor: pointer;
    }

    /* Section 通用结构 */
    .section-wrap {
      padding: 85px 0;
      position: relative;
    }
    .section-bg-light {
      background-color: #ffffff;
      border-top: 1px solid #f1f5f9;
      border-bottom: 1px solid #f1f5f9;
    }
    .section-bg-dark {
      background-color: var(--bg-dark);
      color: #ffffff;
    }
    .section-bg-gray {
      background-color: #f8fafc;
    }
    .section-header {
      margin-bottom: 48px;
    }
    .section-header.text-center {
      text-align: center;
    }
    .section-header.text-center .header-desc {
      margin-left: auto;
      margin-right: auto;
    }
    .header-badge {
      display: inline-block;
      padding: 4px 12px;
      border-radius: var(--radius-sm);
      font-size: 0.8rem;
      font-weight: 700;
      letter-spacing: 0.5px;
      text-transform: uppercase;
      margin-bottom: 12px;
      background: rgba(242, 90, 36, 0.1);
      color: var(--accent);
      border: 1px solid rgba(242, 90, 36, 0.25);
    }
    .section-header h2 {
      font-size: 2.1rem;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-bg-dark .section-header h2 {
      color: #ffffff;
    }
    .section-bg-light .section-header h2, .section-bg-gray .section-header h2 {
      color: var(--primary);
    }
    .header-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 820px;
      line-height: 1.8;
    }
    .section-bg-dark .header-desc {
      color: var(--text-light);
    }

    /* 1. Hero Bento */
    .hero-bento-section {
      background-color: var(--primary);
      color: #fff;
      padding: 40px 0 60px;
      position: relative;
      overflow: hidden;
    }
    .hero-bento-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr;
      grid-template-rows: auto auto;
      gap: 20px;
    }
    .bento-main-card {
      grid-column: 1 / 2;
      grid-row: 1 / 3;
      background: linear-gradient(135deg, rgba(27, 35, 58, 0.95), rgba(17, 22, 37, 0.95)), url('/assets/images/7280a95968253660.webp') center/cover no-repeat;
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 50px 45px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
    }
    .hero-badge-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(242, 90, 36, 0.2);
      border: 1px solid var(--accent);
      color: #ff9f1c;
      font-size: 0.85rem;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: 30px;
      width: fit-content;
      margin-bottom: 24px;
    }
    .bento-main-card h1 {
      font-size: 2.7rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }
    .bento-main-card h1 span {
      color: var(--accent);
    }
    .hero-desc {
      font-size: 1.05rem;
      color: #cbd5e1;
      line-height: 1.8;
      margin-bottom: 35px;
      max-width: 680px;
    }
    .hero-action-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
    }
    .btn-hero-primary {
      background: var(--accent);
      color: #ffffff;
      font-weight: 700;
      padding: 14px 30px;
      border-radius: var(--radius-md);
      display: inline-flex;
      align-items: center;
      gap: 10px;
      transition: all 0.2s ease;
      box-shadow: 0 4px 15px rgba(242, 90, 36, 0.4);
    }
    .btn-hero-primary:hover {
      background: var(--accent-hover);
      transform: translateY(-2px);
    }
    .btn-hero-secondary {
      background: rgba(255, 255, 255, 0.08);
      color: #ffffff;
      font-weight: 600;
      padding: 14px 26px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.2);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: all 0.2s;
    }
    .btn-hero-secondary:hover {
      background: rgba(255, 255, 255, 0.16);
    }

    .bento-side-card {
      background: var(--bg-card-dark);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 30px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      position: relative;
    }
    .side-card-icon {
      font-size: 2rem;
      color: var(--accent);
      margin-bottom: 14px;
    }
    .bento-side-card h3 {
      font-size: 1.25rem;
      color: #ffffff;
      margin-bottom: 10px;
      font-weight: 700;
    }
    .bento-side-card p {
      font-size: 0.92rem;
      color: var(--text-light);
      line-height: 1.7;
    }

    .bento-bottom-strip {
      grid-column: 1 / 3;
      background: #192033;
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 18px 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
    }
    .strip-item {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .strip-icon {
      width: 36px;
      height: 36px;
      background: rgba(242, 90, 36, 0.15);
      color: var(--accent);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
    }
    .strip-text strong {
      display: block;
      color: #fff;
      font-size: 0.95rem;
    }
    .strip-text span {
      color: var(--text-light);
      font-size: 0.8rem;
    }

    /* 2. 数据指标看板 (Data Dashboard) */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .metric-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      box-shadow: var(--shadow-card);
      position: relative;
      overflow: hidden;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }
    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .metric-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: var(--accent);
    }
    .metric-num {
      font-family: var(--font-num);
      font-size: 2.8rem;
      font-weight: 700;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .metric-num span {
      font-size: 1.3rem;
      color: var(--accent);
      margin-left: 2px;
    }
    .metric-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .metric-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 3. 客户实车案例 (Cases) */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
      transition: all 0.25s ease;
    }
    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .case-thumb {
      height: 210px;
      position: relative;
      overflow: hidden;
    }
    .case-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .case-card:hover .case-thumb img {
      transform: scale(1.05);
    }
    .case-tag {
      position: absolute;
      top: 14px;
      right: 14px;
      background: var(--primary);
      color: #fff;
      font-size: 0.75rem;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: var(--radius-sm);
    }
    .case-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .case-meta {
      font-size: 0.8rem;
      color: var(--accent);
      font-weight: 600;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .case-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .case-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 18px;
      flex-grow: 1;
    }
    .case-foot {
      padding-top: 14px;
      border-top: 1px solid #f1f5f9;
      display: flex;
      justify-content: space-between;
      font-size: 0.82rem;
      color: var(--text-light);
    }

    /* 4. 标准对比区 (Comparison) */
    .compare-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }
    .compare-col {
      border-radius: var(--radius-md);
      padding: 36px;
    }
    .compare-bad {
      background: #141a27;
      border: 1px solid rgba(239, 68, 68, 0.2);
    }
    .compare-good {
      background: #182236;
      border: 2px solid var(--accent);
      position: relative;
    }
    .compare-badge {
      display: inline-block;
      padding: 4px 12px;
      border-radius: var(--radius-sm);
      font-size: 0.85rem;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .badge-bad {
      background: rgba(239, 68, 68, 0.15);
      color: #f87171;
      border: 1px solid rgba(239, 68, 68, 0.3);
    }
    .badge-good {
      background: rgba(242, 90, 36, 0.2);
      color: #ff9f1c;
      border: 1px solid var(--accent);
    }
    .compare-col h3 {
      font-size: 1.45rem;
      font-weight: 700;
      margin-bottom: 22px;
      color: #ffffff;
    }
    .compare-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .compare-list li {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 0.95rem;
      line-height: 1.6;
      color: #cbd5e1;
    }
    .compare-list li i {
      margin-top: 4px;
      font-size: 1.1rem;
    }
    .bad-icon { color: #ef4444; }
    .good-icon { color: #10b981; }

    /* 5. 原厂诊断技术与设备 (Tech & Craftsmanship) */
    .tech-wrap {
      display: grid;
      grid-template-columns: 1.1fr 1fr;
      gap: 50px;
      align-items: center;
    }
    .tech-media-box {
      position: relative;
    }
    .tech-main-img {
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-card);
      width: 100%;
      height: 420px;
      object-fit: cover;
    }
    .tech-floating-card {
      position: absolute;
      bottom: -25px;
      right: -25px;
      background: var(--primary);
      color: #fff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-dark);
      box-shadow: var(--shadow-hover);
      max-width: 280px;
    }
    .tech-floating-card strong {
      color: var(--accent);
      font-size: 1.5rem;
      font-family: var(--font-num);
      display: block;
    }
    .tech-floating-card p {
      font-size: 0.85rem;
      color: #cbd5e1;
      margin-top: 4px;
    }
    .tech-feature-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
      margin-top: 28px;
    }
    .tech-feature-item {
      display: flex;
      gap: 16px;
    }
    .tech-feat-icon {
      width: 44px;
      height: 44px;
      background: var(--accent-light);
      color: var(--accent);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      flex-shrink: 0;
    }
    .tech-feat-content h4 {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 4px;
    }
    .tech-feat-content p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 6. 服务矩阵展示区 (Service Matrix) */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .matrix-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      box-shadow: var(--shadow-card);
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
    }
    .matrix-card:hover {
      transform: translateY(-5px);
      border-color: var(--accent);
      box-shadow: var(--shadow-hover);
    }
    .matrix-icon-wrap {
      width: 54px;
      height: 54px;
      background: #f1f5f9;
      color: var(--primary);
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 20px;
      transition: all 0.25s;
    }
    .matrix-card:hover .matrix-icon-wrap {
      background: var(--accent);
      color: #ffffff;
    }
    .matrix-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .matrix-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .matrix-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: auto;
    }
    .matrix-tag-pill {
      font-size: 0.75rem;
      background: #f1f5f9;
      color: var(--primary);
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      font-weight: 600;
    }

    /* 7. 主打维保套餐 (Popular Packages) */
    .packages-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .pkg-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 36px 30px;
      box-shadow: var(--shadow-card);
      position: relative;
      display: flex;
      flex-direction: column;
    }
    .pkg-card.highlight {
      border: 2px solid var(--accent);
      transform: scale(1.02);
      box-shadow: var(--shadow-hover);
    }
    .pkg-ribbon {
      position: absolute;
      top: -12px;
      right: 24px;
      background: var(--accent);
      color: #fff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 20px;
    }
    .pkg-head {
      margin-bottom: 20px;
      padding-bottom: 20px;
      border-bottom: 1px solid #f1f5f9;
    }
    .pkg-title {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .pkg-price {
      font-family: var(--font-num);
      font-size: 2.2rem;
      font-weight: 700;
      color: var(--accent);
    }
    .pkg-price span {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 400;
      margin-left: 4px;
    }
    .pkg-features {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-bottom: 30px;
      flex-grow: 1;
    }
    .pkg-features li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.92rem;
      color: var(--text-main);
    }
    .pkg-features li i {
      color: #10b981;
      font-size: 0.85rem;
    }
    .pkg-btn {
      width: 100%;
      text-align: center;
      padding: 12px;
      border-radius: var(--radius-md);
      font-weight: 700;
      background: #f1f5f9;
      color: var(--primary);
      transition: all 0.2s;
    }
    .pkg-card.highlight .pkg-btn, .pkg-btn:hover {
      background: var(--accent);
      color: #ffffff;
    }

    /* 8. 技术沉淀与里程碑 (Milestones) */
    .timeline-wrap {
      max-width: 900px;
      margin: 0 auto;
      position: relative;
    }
    .timeline-wrap::before {
      content: "";
      position: absolute;
      left: 50%;
      top: 0;
      bottom: 0;
      width: 2px;
      background: rgba(255, 255, 255, 0.12);
      transform: translateX(-50%);
    }
    .timeline-item {
      display: flex;
      justify-content: space-between;
      margin-bottom: 40px;
      position: relative;
    }
    .timeline-item:nth-child(even) {
      flex-direction: row-reverse;
    }
    .timeline-content {
      width: 44%;
      background: var(--bg-card-dark);
      border: 1px solid var(--border-dark);
      padding: 24px;
      border-radius: var(--radius-md);
    }
    .timeline-dot {
      position: absolute;
      left: 50%;
      top: 24px;
      transform: translate(-50%, -50%);
      width: 18px;
      height: 18px;
      border-radius: 50%;
      background: var(--accent);
      border: 4px solid var(--primary);
    }
    .timeline-year {
      font-family: var(--font-num);
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 6px;
    }
    .timeline-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 8px;
    }
    .timeline-desc {
      font-size: 0.88rem;
      color: #94a3b8;
      line-height: 1.6;
    }

    /* 9. 平台多重维保保障 (Platform Assurance) */
    .assurance-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .assurance-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 22px;
      text-align: center;
      transition: all 0.25s;
    }
    .assurance-card:hover {
      box-shadow: var(--shadow-hover);
      border-color: var(--accent);
    }
    .assurance-icon {
      width: 60px;
      height: 60px;
      margin: 0 auto 18px;
      background: var(--accent-light);
      color: var(--accent);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.6rem;
    }
    .assurance-card h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
    }
    .assurance-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 10. 紧凑数据横幅 (Key Stats Strip) */
    .stats-strip-banner {
      background: var(--primary);
      border-top: 1px solid var(--border-dark);
      border-bottom: 1px solid var(--border-dark);
      padding: 36px 0;
      color: #ffffff;
    }
    .stats-strip-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: center;
    }
    .stats-strip-item strong {
      font-family: var(--font-num);
      font-size: 2.2rem;
      display: block;
      color: var(--accent);
      margin-bottom: 4px;
    }
    .stats-strip-item span {
      font-size: 0.9rem;
      color: #cbd5e1;
    }

    /* 11. 真实车主口碑 (Testimonials Grid) */
    .testi-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .testi-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
    }
    .testi-stars {
      color: #f59e0b;
      font-size: 0.9rem;
      margin-bottom: 14px;
    }
    .testi-quote {
      font-size: 0.95rem;
      color: var(--text-main);
      line-height: 1.7;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .testi-author {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }
    .testi-user-info strong {
      display: block;
      font-size: 0.95rem;
      color: var(--primary);
    }
    .testi-user-info span {
      font-size: 0.8rem;
      color: var(--text-muted);
    }
    .testi-badge {
      background: #f1f5f9;
      color: var(--primary);
      font-size: 0.75rem;
      padding: 4px 8px;
      border-radius: var(--radius-sm);
      font-family: var(--font-num);
    }

    /* 12. 维保知识与资讯 (News & Insights) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .news-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
    }
    .news-card-img {
      height: 180px;
      object-fit: cover;
      width: 100%;
    }
    .news-content {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .news-date {
      font-size: 0.8rem;
      color: var(--accent);
      font-weight: 600;
      margin-bottom: 8px;
    }
    .news-content h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-content p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .news-more-link {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--accent);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 13. 快速故障排查指南 (Troubleshooting) */
    .trouble-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .trouble-box {
      background: var(--bg-card-dark);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 26px;
    }
    .trouble-icon-head {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .trouble-icon-head i {
      font-size: 1.4rem;
      color: var(--accent);
    }
    .trouble-icon-head h3 {
      font-size: 1.15rem;
      color: #ffffff;
      font-weight: 700;
    }
    .trouble-box p {
      font-size: 0.9rem;
      color: #cbd5e1;
      line-height: 1.7;
    }

    /* 14. 常见异议澄清 (Misconceptions Clarification) */
    .misconcept-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .misconcept-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
    }
    .mis-wrong {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: #dc2626;
      font-weight: 700;
      font-size: 1rem;
      margin-bottom: 10px;
    }
    .mis-wrong i {
      margin-top: 3px;
    }
    .mis-right {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: var(--text-main);
      font-size: 0.92rem;
      line-height: 1.7;
    }
    .mis-right i {
      color: #10b981;
      margin-top: 4px;
      font-size: 1.05rem;
    }

    /* 15. FAQ 手风琴 (Accordion) */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .faq-header {
      padding: 20px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-weight: 700;
      color: var(--primary);
      font-size: 1.05rem;
      user-select: none;
      transition: background-color 0.2s;
    }
    .faq-header:hover {
      background-color: #f8fafc;
    }
    .faq-header i {
      color: var(--accent);
      transition: transform 0.3s ease;
    }
    .faq-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background-color: #ffffff;
      padding: 0 24px;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.75;
    }
    .faq-item.active .faq-header i {
      transform: rotate(180deg);
    }
    .faq-item.active .faq-content {
      max-height: 220px;
      padding: 0 24px 22px 24px;
    }

    /* 16. 预约转化与紧急施救 (Conversion & Form) */
    .cta-form-section {
      background: linear-gradient(135deg, #111625 0%, #1a2238 100%);
      color: #ffffff;
      padding: 80px 0;
    }
    .cta-form-grid {
      display: grid;
      grid-template-columns: 1.1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .cta-info-area h2 {
      font-size: 2.3rem;
      font-weight: 800;
      margin-bottom: 20px;
      line-height: 1.25;
    }
    .cta-info-area p {
      font-size: 1.05rem;
      color: #cbd5e1;
      line-height: 1.8;
      margin-bottom: 30px;
    }
    .cta-hotline-card {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .cta-hotline-card i {
      font-size: 2rem;
      color: var(--accent);
    }
    .cta-hotline-card strong {
      display: block;
      font-size: 1.6rem;
      font-family: var(--font-num);
      color: #ffffff;
      letter-spacing: 0.5px;
    }
    .cta-hotline-card span {
      font-size: 0.85rem;
      color: #94a3b8;
    }

    .form-card-box {
      background: #ffffff;
      color: var(--text-main);
      padding: 36px;
      border-radius: var(--radius-md);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
    }
    .form-card-box h3 {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .form-card-box p {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 22px;
    }
    .form-group-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 16px;
    }
    .form-field {
      display: flex;
      flex-direction: column;
      gap: 6px;
      margin-bottom: 16px;
    }
    .form-field label {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--primary);
    }
    .form-field input, .form-field select, .form-field textarea {
      padding: 11px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      outline: none;
      font-size: 0.9rem;
      background: #f8fafc;
      transition: border-color 0.2s;
    }
    .form-field input:focus, .form-field select:focus, .form-field textarea:focus {
      border-color: var(--accent);
      background: #ffffff;
    }
    .submit-btn {
      width: 100%;
      background: var(--accent);
      color: #ffffff;
      border: none;
      padding: 13px;
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-size: 1.05rem;
      cursor: pointer;
      transition: background 0.2s;
      box-shadow: 0 4px 12px rgba(242, 90, 36, 0.3);
    }
    .submit-btn:hover {
      background: var(--accent-hover);
    }

    /* 底部通用 Footer */
    .site-footer {
      background-color: var(--primary-dark);
      color: #cbd5e1;
      font-size: 0.9rem;
      padding-top: 60px;
      padding-bottom: 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand h2 {
      font-size: 1.35rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 14px;
    }
    .footer-brand p {
      font-size: 0.88rem;
      color: #94a3b8;
      line-height: 1.7;
    }
    .footer-col h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: var(--accent);
    }
    .footer-contact-info {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-contact-info li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      font-size: 0.88rem;
    }
    .footer-contact-info i {
      color: var(--accent);
      margin-top: 3px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 25px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 14px;
      font-size: 0.82rem;
      color: #64748b;
    }
    .footer-bottom a {
      color: #64748b;
      margin-left: 15px;
    }
    .footer-bottom a:hover {
      color: var(--accent);
    }

    /* 移动端菜单抽屉 */
    .mobile-drawer {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100vh;
      background: rgba(17, 22, 37, 0.95);
      z-index: 1001;
      display: flex;
      flex-direction: column;
      padding: 30px 24px;
      transform: translateX(-100%);
      transition: transform 0.3s ease;
    }
    .mobile-drawer.open {
      transform: translateX(0);
    }
    .drawer-head {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 30px;
    }
    .drawer-close {
      background: none;
      border: none;
      color: #ffffff;
      font-size: 1.8rem;
      cursor: pointer;
    }
    .drawer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .drawer-links a {
      color: #ffffff;
      font-size: 1.2rem;
      font-weight: 600;
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .hero-bento-grid {
        grid-template-columns: 1fr;
      }
      .bento-main-card {
        grid-column: 1;
        grid-row: auto;
      }
      .bento-bottom-strip {
        grid-column: 1;
      }
      .metrics-grid, .assurance-grid, .stats-strip-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .case-grid, .matrix-grid, .packages-grid, .testi-grid, .news-grid, .trouble-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .tech-wrap {
        grid-template-columns: 1fr;
      }
      .compare-container {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .nav-links, .nav-cta-btn {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .section-wrap {
        padding: 55px 0;
      }
      .bento-main-card {
        padding: 30px 20px;
      }
      .bento-main-card h1 {
        font-size: 2rem;
      }
      .metrics-grid, .assurance-grid, .stats-strip-grid {
        grid-template-columns: 1fr;
      }
      .case-grid, .matrix-grid, .packages-grid, .testi-grid, .news-grid, .trouble-grid, .misconcept-grid {
        grid-template-columns: 1fr;
      }
      .cta-form-grid {
        grid-template-columns: 1fr;
      }
      .form-group-row {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .timeline-wrap::before {
        left: 20px;
      }
      .timeline-item {
        flex-direction: column !important;
        margin-left: 36px;
      }
      .timeline-content {
        width: 100%;
      }
      .timeline-dot {
        left: -26px;
      }
    }