/* roulang page: index */
:root {
      --primary-dark: #0f172a;
      --slate-blue: #1e293b;
      --slate-muted: #334155;
      --accent-teal: #0d9488;
      --accent-teal-hover: #0f766e;
      --accent-amber: #f59e0b;
      --accent-amber-hover: #d97706;
      --bg-light: #f8fafc;
      --bg-white: #ffffff;
      --text-main: #0f172a;
      --text-muted: #64748b;
      --text-sub: #475569;
      --border-color: #e2e8f0;
      --card-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
      --card-shadow-hover: 0 12px 28px -4px rgba(15, 23, 42, 0.12);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "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-family);
      color: var(--text-main);
      background-color: var(--bg-light);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

    .container {
      width: 100%;
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部通栏 */
    .top-bar {
      background-color: var(--slate-blue);
      color: #94a3b8;
      font-size: 13px;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-bar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }
    .top-bar-tags {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .top-badge {
      display: inline-flex;
      align-items: center;
      background: rgba(13, 148, 136, 0.2);
      color: #2dd4bf;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 500;
    }
    .top-bar-contact {
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .top-bar-contact a:hover {
      color: #ffffff;
    }

    /* 核心导航栏 */
    .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: all 0.3s ease;
    }
    .main-header.scrolled {
      box-shadow: 0 4px 16px rgba(15, 23, 42, 0.08);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 800;
      color: var(--primary-dark);
      letter-spacing: -0.5px;
    }
    .brand-logo-icon {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, var(--accent-teal), #0f766e);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      font-weight: 900;
      font-size: 18px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 24px;
      list-style: none;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 500;
      color: var(--slate-muted);
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--accent-teal);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 20px;
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      border: 1px solid transparent;
      text-align: center;
    }
    .btn-teal {
      background-color: var(--accent-teal);
      color: #ffffff;
    }
    .btn-teal:hover {
      background-color: var(--accent-teal-hover);
      box-shadow: 0 4px 14px rgba(13, 148, 136, 0.35);
      transform: translateY(-1px);
    }
    .btn-amber {
      background-color: var(--accent-amber);
      color: #ffffff;
    }
    .btn-amber:hover {
      background-color: var(--accent-amber-hover);
      box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
      transform: translateY(-1px);
    }
    .btn-outline-white {
      background-color: rgba(255, 255, 255, 0.08);
      border-color: rgba(255, 255, 255, 0.25);
      color: #ffffff;
    }
    .btn-outline-white:hover {
      background-color: rgba(255, 255, 255, 0.18);
      border-color: #ffffff;
    }
    .btn-outline-dark {
      background-color: transparent;
      border-color: var(--border-color);
      color: var(--slate-muted);
    }
    .btn-outline-dark:hover {
      border-color: var(--accent-teal);
      color: var(--accent-teal);
      background-color: rgba(13, 148, 136, 0.04);
    }

    /* 移动端菜单开关 */
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--primary-dark);
      cursor: pointer;
      padding: 8px;
    }

    /* 通用 Section 规范 */
    .section-wrap {
      padding: 88px 0;
      position: relative;
    }
    .section-header {
      margin-bottom: 56px;
      text-align: center;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-badge {
      display: inline-block;
      padding: 4px 14px;
      font-size: 13px;
      font-weight: 600;
      color: var(--accent-teal);
      background: rgba(13, 148, 136, 0.1);
      border-radius: 9999px;
      margin-bottom: 14px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .section-badge.dark {
      background: rgba(245, 158, 11, 0.15);
      color: #fbbf24;
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--primary-dark);
      line-height: 1.35;
      margin-bottom: 16px;
    }
    .section-subtitle {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .bg-white-pure {
      background-color: var(--bg-white);
    }
    .bg-slate-soft {
      background-color: #f1f5f9;
    }
    .bg-deep-tech {
      background-color: var(--primary-dark);
      color: #f8fafc;
    }
    .bg-deep-tech .section-title {
      color: #ffffff;
    }
    .bg-deep-tech .section-subtitle {
      color: #94a3b8;
    }

    /* 板块 1: Hero 促销主视觉区 */
    .hero-section {
      position: relative;
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(30, 41, 59, 0.88) 100%),
                  url('/assets/images/508c99b31083f7d6.webp') center/cover no-repeat;
      color: #ffffff;
      padding: 100px 0 120px;
      overflow: hidden;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-badge-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(245, 158, 11, 0.18);
      border: 1px solid rgba(245, 158, 11, 0.4);
      color: #fbbf24;
      padding: 6px 14px;
      border-radius: 9999px;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 24px;
    }
    .hero-badge-tag .pulse-dot {
      width: 8px;
      height: 8px;
      background: #f59e0b;
      border-radius: 50%;
      box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.3);
    }
    .hero-title {
      font-size: 42px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 20px;
      color: #ffffff;
      letter-spacing: -0.5px;
    }
    .hero-desc {
      font-size: 16px;
      line-height: 1.8;
      color: #cbd5e1;
      margin-bottom: 32px;
      text-align: justify;
    }
    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 32px;
    }
    .hero-meta-points {
      display: flex;
      gap: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      padding-top: 24px;
    }
    .hero-meta-item {
      display: flex;
      flex-direction: column;
    }
    .hero-meta-num {
      font-size: 22px;
      font-weight: 700;
      color: #2dd4bf;
    }
    .hero-meta-label {
      font-size: 13px;
      color: #94a3b8;
    }

    /* 首屏右侧模拟看板 */
    .hero-dashboard-card {
      background: rgba(30, 41, 59, 0.7);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    }
    .dash-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-bottom: 16px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      margin-bottom: 20px;
    }
    .dash-title {
      font-size: 16px;
      font-weight: 700;
      color: #ffffff;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .dash-status {
      display: inline-block;
      width: 10px;
      height: 10px;
      background: #10b981;
      border-radius: 50%;
    }
    .dash-metrics-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-bottom: 20px;
    }
    .dash-metric-box {
      background: rgba(15, 23, 42, 0.5);
      border-radius: 8px;
      padding: 14px;
      border: 1px solid rgba(255, 255, 255, 0.05);
    }
    .dash-metric-name {
      font-size: 12px;
      color: #94a3b8;
      margin-bottom: 6px;
    }
    .dash-metric-val {
      font-size: 20px;
      font-weight: 700;
      color: #38bdf8;
    }
    .dash-vehicle-list {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .dash-veh-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: rgba(15, 23, 42, 0.35);
      padding: 10px 14px;
      border-radius: 6px;
      font-size: 13px;
    }
    .dash-plate {
      font-weight: 600;
      color: #f8fafc;
    }
    .dash-tag-run {
      background: rgba(16, 185, 129, 0.15);
      color: #34d399;
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 12px;
    }

    /* 板块 2: 行业痛点区 */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .pain-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 28px 22px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
      position: relative;
    }
    .pain-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--card-shadow-hover);
      border-color: #cbd5e1;
    }
    .pain-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: #ef4444;
      border-radius: var(--radius-md) var(--radius-md) 0 0;
    }
    .pain-icon-wrapper {
      width: 48px;
      height: 48px;
      background: #fee2e2;
      color: #dc2626;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: bold;
      margin-bottom: 20px;
    }
    .pain-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 12px;
    }
    .pain-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块 3: 架构与技术可信度 */
    .arch-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .arch-content h3 {
      font-size: 26px;
      font-weight: 700;
      margin-bottom: 18px;
      line-height: 1.4;
    }
    .arch-content p {
      font-size: 15px;
      color: var(--text-sub);
      line-height: 1.75;
      margin-bottom: 24px;
    }
    .arch-specs-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 28px;
    }
    .spec-box {
      background: #ffffff;
      padding: 14px 18px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
    }
    .spec-key {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 4px;
    }
    .spec-value {
      font-size: 15px;
      font-weight: 700;
      color: var(--slate-blue);
    }
    .arch-media {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: 0 16px 36px rgba(15, 23, 42, 0.12);
      border: 1px solid var(--border-color);
    }
    .arch-media img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }

    /* 板块 4: 核心优势矩阵 */
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .feature-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 26px;
      transition: all 0.25s ease;
      position: relative;
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--card-shadow-hover);
      border-color: var(--accent-teal);
    }
    .feat-icon {
      width: 44px;
      height: 44px;
      border-radius: 8px;
      background: rgba(13, 148, 136, 0.1);
      color: var(--accent-teal);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 20px;
      font-weight: bold;
    }
    .feature-card h3 {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--primary-dark);
    }
    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块 5: 热门软硬件模块 */
    .hardware-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .hw-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
    }
    .hw-img-wrap {
      height: 200px;
      position: relative;
      background: #e2e8f0;
      overflow: hidden;
    }
    .hw-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .hw-card:hover .hw-img-wrap img {
      transform: scale(1.05);
    }
    .hw-badge-corner {
      position: absolute;
      top: 12px;
      right: 12px;
      background: rgba(15, 23, 42, 0.8);
      color: #ffffff;
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 12px;
      font-weight: 600;
    }
    .hw-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .hw-body h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .hw-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .hw-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: auto;
      margin-bottom: 16px;
    }
    .hw-tag-pill {
      font-size: 12px;
      padding: 3px 8px;
      border-radius: 4px;
      background: #f1f5f9;
      color: var(--slate-muted);
    }

    /* 板块 6: 部署实施步骤 */
    .step-track {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 20px;
      position: relative;
      z-index: 2;
    }
    .step-num-circle {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--accent-teal);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 18px;
      margin-bottom: 16px;
    }
    .step-card h3 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .step-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 7: 深色案例与资产理念 */
    .deep-philosophy {
      background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
      color: #ffffff;
      padding: 96px 0;
    }
    .deep-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .deep-quote {
      font-size: 20px;
      font-weight: 600;
      line-height: 1.6;
      color: #e2e8f0;
      margin-bottom: 24px;
      border-left: 4px solid var(--accent-amber);
      padding-left: 20px;
    }
    .deep-pillars {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .pillar-item {
      display: flex;
      gap: 16px;
      align-items: flex-start;
      background: rgba(255, 255, 255, 0.04);
      padding: 16px;
      border-radius: 8px;
      border: 1px solid rgba(255, 255, 255, 0.08);
    }
    .pillar-num {
      color: var(--accent-amber);
      font-weight: 800;
      font-size: 18px;
    }
    .pillar-text h4 {
      font-size: 16px;
      color: #ffffff;
      margin-bottom: 4px;
    }
    .pillar-text p {
      font-size: 13px;
      color: #94a3b8;
      line-height: 1.5;
    }

    /* 板块 8: 成果数据指标条 */
    .kpi-strip {
      background-color: #0b1329;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 56px 0;
    }
    .kpi-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }
    .kpi-card {
      padding: 16px;
    }
    .kpi-val {
      font-size: 46px;
      font-weight: 900;
      color: #2dd4bf;
      line-height: 1;
      margin-bottom: 12px;
      font-family: var(--font-family);
    }
    .kpi-card:nth-child(2) .kpi-val {
      color: #38bdf8;
    }
    .kpi-card:nth-child(3) .kpi-val {
      color: #fbbf24;
    }
    .kpi-card:nth-child(4) .kpi-val {
      color: #34d399;
    }
    .kpi-title {
      font-size: 16px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 6px;
    }
    .kpi-desc {
      font-size: 13px;
      color: #94a3b8;
    }

    /* 板块 9: 用户故事与实战案例 */
    .case-container {
      display: flex;
      flex-direction: column;
      gap: 32px;
    }
    .case-card-split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      align-items: center;
    }
    .case-media {
      height: 100%;
      min-height: 320px;
    }
    .case-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .case-body {
      padding: 40px;
    }
    .case-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      background: rgba(13, 148, 136, 0.1);
      color: var(--accent-teal);
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 12px;
    }
    .case-body h3 {
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 14px;
    }
    .case-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .case-results-box {
      display: flex;
      gap: 20px;
      padding-top: 16px;
      border-top: 1px solid var(--border-color);
    }
    .case-res-item strong {
      display: block;
      font-size: 20px;
      color: var(--slate-blue);
    }
    .case-res-item span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 10: 适用人群与车队类型 */
    .fleet-type-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .fleet-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      transition: all 0.25s ease;
    }
    .fleet-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--card-shadow-hover);
    }
    .fleet-img-wrap {
      height: 160px;
      overflow: hidden;
    }
    .fleet-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .fleet-info {
      padding: 20px;
    }
    .fleet-info h3 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .fleet-info p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 11: 真实客户评价 */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-stars {
      color: #f59e0b;
      font-size: 16px;
      margin-bottom: 16px;
      letter-spacing: 2px;
    }
    .review-card blockquote {
      font-size: 14px;
      line-height: 1.75;
      color: var(--text-sub);
      margin-bottom: 24px;
      flex-grow: 1;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      padding-top: 16px;
      border-top: 1px solid #f1f5f9;
    }
    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #e2e8f0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--slate-blue);
      font-size: 16px;
    }
    .author-meta h4 {
      font-size: 15px;
      font-weight: 700;
    }
    .author-meta span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 12: 车队数智化资讯 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
    }
    .news-img {
      height: 180px;
    }
    .news-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .news-date {
      font-size: 12px;
      color: var(--accent-teal);
      margin-bottom: 8px;
      font-weight: 600;
    }
    .news-body h3 {
      font-size: 17px;
      font-weight: 700;
      line-height: 1.45;
      margin-bottom: 12px;
    }
    .news-body p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .news-readmore {
      margin-top: auto;
      font-size: 13px;
      font-weight: 600;
      color: var(--accent-teal);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .news-readmore:hover {
      color: var(--accent-teal-hover);
    }

    /* 板块 13: 核心技术数据指标评测 */
    .tech-table-wrapper {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      box-shadow: var(--card-shadow);
      overflow-x: auto;
    }
    .tech-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }
    .tech-table th {
      background: #f8fafc;
      color: var(--slate-blue);
      font-weight: 700;
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      white-space: nowrap;
    }
    .tech-table td {
      padding: 18px 20px;
      border-bottom: 1px solid var(--border-color);
      color: var(--text-sub);
    }
    .tech-table tr:last-child td {
      border-bottom: none;
    }
    .tech-table tr:hover td {
      background: #fcfdfd;
    }
    .tag-strong {
      color: var(--accent-teal);
      font-weight: 700;
    }
    .tag-warn {
      color: #ef4444;
    }

    /* 板块 14: FAQ 常见问题解答 */
    .faq-list {
      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;
      box-shadow: var(--card-shadow);
    }
    .faq-summary {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--primary-dark);
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-summary::-webkit-details-marker {
      display: none;
    }
    .faq-summary::after {
      content: "+";
      font-size: 22px;
      font-weight: 400;
      color: var(--text-muted);
      transition: transform 0.25s ease;
    }
    details[open] .faq-summary::after {
      content: "−";
      color: var(--accent-teal);
    }
    .faq-content {
      padding: 0 24px 22px 24px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
    }

    /* 板块 15: 底部行动转化区 */
    .cta-banner-section {
      background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%),
                  url('/assets/images/725f14eed49d66d8.webp') center/cover no-repeat;
      padding: 88px 0;
      color: #ffffff;
    }
    .cta-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }
    .cta-form-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 36px 32px;
      box-shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
      color: var(--text-main);
    }
    .cta-form-card h3 {
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 6px;
      color: var(--primary-dark);
    }
    .cta-form-card p {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 24px;
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--slate-blue);
    }
    .form-input, .form-select {
      width: 100%;
      height: 44px;
      padding: 0 14px;
      border: 1px solid var(--border-color);
      border-radius: 6px;
      font-size: 14px;
      color: var(--text-main);
      outline: none;
      transition: border-color 0.2s ease;
    }
    .form-input:focus, .form-select:focus {
      border-color: var(--accent-teal);
      box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
    }
    .btn-submit {
      width: 100%;
      height: 48px;
      font-size: 15px;
      font-weight: 700;
      margin-top: 8px;
    }

    /* 页脚 */
    .site-footer {
      background-color: #070d19;
      color: #94a3b8;
      padding: 72px 0 28px;
      font-size: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 56px;
    }
    .footer-brand h4 {
      font-size: 20px;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 14px;
    }
    .footer-brand p {
      font-size: 13px;
      line-height: 1.75;
      color: #64748b;
      margin-bottom: 20px;
    }
    .footer-col h5 {
      font-size: 15px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 18px;
    }
    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-col a {
      color: #94a3b8;
    }
    .footer-col a:hover {
      color: #2dd4bf;
    }
    .footer-contact-info {
      font-size: 13px;
      line-height: 1.8;
      color: #94a3b8;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 12px;
      color: #64748b;
    }
    .footer-legal-links {
      display: flex;
      gap: 16px;
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .hero-grid, .arch-grid, .deep-grid, .cta-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .pain-grid, .fleet-type-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .feature-grid, .hardware-grid, .news-grid, .kpi-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .step-track {
        grid-template-columns: repeat(2, 1fr);
      }
      .case-card-split {
        grid-template-columns: 1fr;
      }
      .case-media {
        height: 260px;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-actions .btn {
        padding: 8px 14px;
        font-size: 13px;
      }
      .hero-title {
        font-size: 28px;
      }
      .section-wrap {
        padding: 60px 0;
      }
      .section-title {
        font-size: 24px;
      }
      .pain-grid, .fleet-type-grid, .feature-grid, .hardware-grid, .news-grid, .review-grid, .kpi-grid, .step-track {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
      .footer-legal-links {
        justify-content: center;
      }
    }