/* roulang page: index */
:root {
      --bg-dark: #070B14;
      --bg-deep: #0B132B;
      --bg-card: rgba(16, 26, 54, 0.65);
      --bg-card-hover: rgba(22, 36, 75, 0.85);
      --primary: #0066FF;
      --primary-cyan: #00D2FF;
      --accent-neon: #00F5D4;
      --accent-gold: #FFB703;
      --accent-warn: #FF3366;
      --border-glow: rgba(0, 210, 255, 0.18);
      --border-glow-hover: rgba(0, 210, 255, 0.5);
      --text-main: #F1F5F9;
      --text-muted: #94A3B8;
      --text-dim: #64748B;
      --glow-blue: 0 0 25px rgba(0, 210, 255, 0.35);
      --glow-strong: 0 0 35px rgba(0, 102, 255, 0.6);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    html {
      scroll-behavior: smooth;
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

    body {
      background: radial-gradient(circle at 50% -20%, #152244 0%, var(--bg-dark) 60%), #070B14;
      background-attachment: fixed;
      line-height: 1.7;
      font-size: 15px;
      overflow-x: hidden;
    }

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

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

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

    /* 顶部服务栏 */
    .top-bar {
      height: 38px;
      background: rgba(5, 8, 16, 0.85);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 13px;
      color: var(--text-muted);
      display: flex;
      align-items: center;
    }
    .top-bar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-bar-left, .top-bar-right {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .top-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 2px 8px;
      background: rgba(0, 245, 212, 0.1);
      border: 1px solid rgba(0, 245, 212, 0.3);
      color: var(--accent-neon);
      border-radius: 4px;
      font-size: 11px;
    }
    .top-bar a:hover {
      color: var(--primary-cyan);
    }

    /* 悬浮导航栏 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      height: 72px;
      background: rgba(7, 11, 20, 0.75);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--border-glow);
      transition: all 0.3s ease;
    }
    .header-inner {
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 700;
      letter-spacing: 0.5px;
      color: #FFFFFF;
    }
    .logo-radar-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary), var(--primary-cyan));
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 0 16px rgba(0, 210, 255, 0.5);
      position: relative;
    }
    .logo-radar-icon svg {
      width: 22px;
      height: 22px;
      fill: #FFFFFF;
    }
    .brand-logo span span {
      color: var(--primary-cyan);
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 24px;
    }
    .nav-link {
      font-size: 14.5px;
      color: var(--text-muted);
      font-weight: 500;
      padding: 6px 0;
      position: relative;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary-cyan);
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0%;
      height: 2px;
      background: var(--primary-cyan);
      transition: width 0.3s;
    }
    .nav-link:hover::after {
      width: 100%;
    }

    .header-cta-btn {
      padding: 10px 22px;
      background: linear-gradient(135deg, #0052D4, #4364F7, #6FB1FC);
      border-radius: 24px;
      color: #FFFFFF;
      font-weight: 600;
      font-size: 14px;
      box-shadow: 0 0 20px rgba(67, 100, 247, 0.4);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .header-cta-btn:hover {
      box-shadow: 0 0 28px rgba(0, 210, 255, 0.65);
      transform: translateY(-2px);
    }

    .mobile-menu-btn {
      display: none;
      background: transparent;
      border: 1px solid var(--border-glow);
      color: var(--text-main);
      padding: 8px;
      border-radius: 6px;
      cursor: pointer;
    }

    /* 移动端菜单抽屉 */
    .mobile-drawer {
      position: fixed;
      top: 110px;
      left: 0;
      right: 0;
      background: rgba(11, 19, 43, 0.98);
      backdrop-filter: blur(20px);
      padding: 24px;
      border-bottom: 1px solid var(--border-glow);
      display: none;
      flex-direction: column;
      gap: 18px;
      z-index: 998;
    }
    .mobile-drawer.open {
      display: flex;
    }
    .mobile-drawer a {
      font-size: 16px;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      color: var(--text-muted);
    }

    /* 通用组件 */
    .section-spacing {
      padding: 90px 0;
      position: relative;
    }
    .section-alt {
      background: linear-gradient(180deg, rgba(16, 26, 54, 0.35) 0%, rgba(7, 11, 20, 0.6) 100%);
      border-top: 1px solid rgba(0, 210, 255, 0.08);
      border-bottom: 1px solid rgba(0, 210, 255, 0.08);
    }
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 56px auto;
    }
    .section-eyebrow {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 1.5px;
      text-transform: uppercase;
      color: var(--primary-cyan);
      background: rgba(0, 210, 255, 0.1);
      border: 1px solid rgba(0, 210, 255, 0.25);
      padding: 4px 14px;
      border-radius: 20px;
      margin-bottom: 16px;
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      letter-spacing: -0.5px;
      color: #FFFFFF;
      margin-bottom: 18px;
      line-height: 1.35;
    }
    .section-subtitle {
      font-size: 15.5px;
      color: var(--text-muted);
      line-height: 1.8;
    }

    .glass-card {
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-radius: var(--radius-md);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
      transition: all 0.35s ease;
    }
    .glass-card:hover {
      background: var(--bg-card-hover);
      border-color: var(--border-glow-hover);
      transform: translateY(-4px);
      box-shadow: 0 16px 36px rgba(0, 102, 255, 0.22);
    }

    /* 模块1: 首屏沉浸大 Banner (Hero) */
    .hero-section {
      position: relative;
      padding: 100px 0 120px;
      min-height: 720px;
      display: flex;
      align-items: center;
      background-size: cover;
      background-position: center;
      background-repeat: no-repeat;
      overflow: hidden;
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 75% 40%, rgba(0, 102, 255, 0.22) 0%, rgba(7, 11, 20, 0.94) 75%),
                  linear-gradient(180deg, rgba(7, 11, 20, 0.5) 0%, #070B14 100%);
    }
    .hero-grid {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 22px;
      color: #FFFFFF;
      letter-spacing: -0.8px;
    }
    .hero-content h1 span {
      background: linear-gradient(135deg, #00D2FF 0%, #00F5D4 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 16px;
      color: #CBD5E1;
      line-height: 1.8;
      margin-bottom: 34px;
    }
    .hero-actions {
      display: flex;
      align-items: center;
      gap: 18px;
      margin-bottom: 40px;
      flex-wrap: wrap;
    }
    .btn-glow-primary {
      padding: 14px 34px;
      background: linear-gradient(135deg, #0066FF, #00D2FF);
      color: #FFFFFF;
      font-weight: 600;
      border-radius: 28px;
      box-shadow: 0 0 24px rgba(0, 210, 255, 0.45);
      font-size: 15px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-glow-primary:hover {
      box-shadow: 0 0 32px rgba(0, 245, 212, 0.6);
      transform: translateY(-2px);
    }
    .btn-glass-secondary {
      padding: 14px 28px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.2);
      color: #FFFFFF;
      font-weight: 600;
      border-radius: 28px;
      font-size: 15px;
      backdrop-filter: blur(10px);
    }
    .btn-glass-secondary:hover {
      background: rgba(255, 255, 255, 0.12);
      border-color: var(--primary-cyan);
    }
    .hero-badges-row {
      display: flex;
      gap: 20px;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 24px;
    }
    .hero-badge-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13.5px;
      color: var(--text-muted);
    }
    .hero-badge-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent-neon);
      box-shadow: 0 0 8px var(--accent-neon);
    }

    /* 首屏右侧仪表视窗 */
    .hero-hud-card {
      padding: 28px;
      position: relative;
    }
    .hud-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid rgba(0, 210, 255, 0.15);
      padding-bottom: 16px;
      margin-bottom: 20px;
    }
    .hud-title {
      font-size: 14px;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary-cyan);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .hud-status-live {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      color: var(--accent-neon);
    }
    .hud-ping {
      width: 6px;
      height: 6px;
      background: var(--accent-neon);
      border-radius: 50%;
      box-shadow: 0 0 6px var(--accent-neon);
      animation: pulse 1.8s infinite;
    }
    @keyframes pulse {
      0% { opacity: 0.4; }
      50% { opacity: 1; }
      100% { opacity: 0.4; }
    }
    .hud-metrics-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .hud-metric-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13.5px;
    }
    .hud-progress-bg {
      width: 100%;
      height: 6px;
      background: rgba(255, 255, 255, 0.08);
      border-radius: 4px;
      margin-top: 6px;
      overflow: hidden;
    }
    .hud-progress-bar {
      height: 100%;
      border-radius: 4px;
      background: linear-gradient(90deg, var(--primary), var(--primary-cyan));
    }

    /* 模块2: 倒计时 / 限时普检预约条 */
    .countdown-strip-section {
      background: linear-gradient(90deg, #09132E 0%, #002766 50%, #09132E 100%);
      border-top: 1px solid var(--border-glow);
      border-bottom: 1px solid var(--border-glow);
      padding: 24px 0;
    }
    .strip-flex {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
    }
    .strip-text-box h3 {
      font-size: 18px;
      color: #FFFFFF;
      font-weight: 700;
      margin-bottom: 4px;
    }
    .strip-text-box p {
      font-size: 13.5px;
      color: var(--text-muted);
    }
    .countdown-timer-group {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .timer-unit {
      background: rgba(0, 0, 0, 0.45);
      border: 1px solid rgba(0, 210, 255, 0.3);
      padding: 6px 14px;
      border-radius: 8px;
      text-align: center;
    }
    .timer-num {
      font-size: 20px;
      font-weight: 800;
      color: var(--accent-neon);
      font-family: monospace;
    }
    .timer-label {
      font-size: 10px;
      color: var(--text-muted);
      text-transform: uppercase;
    }

    /* 模块3: 行业痛点与检测盲区剖析 */
    .painpoint-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .painpoint-card {
      padding: 32px 26px;
      border-left: 4px solid var(--accent-warn);
      position: relative;
    }
    .painpoint-tag {
      display: inline-block;
      font-size: 12px;
      color: var(--accent-warn);
      background: rgba(255, 51, 102, 0.12);
      border: 1px solid rgba(255, 51, 102, 0.25);
      padding: 3px 10px;
      border-radius: 4px;
      margin-bottom: 14px;
      font-weight: 600;
    }
    .painpoint-title {
      font-size: 19px;
      color: #FFFFFF;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .painpoint-desc {
      font-size: 14.5px;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 18px;
    }
    .painpoint-stat {
      font-size: 13px;
      color: #CBD5E1;
      padding-top: 14px;
      border-top: 1px dashed rgba(255, 255, 255, 0.1);
    }

    /* 模块4: 软硬件多维诊断解决方案 */
    .solution-split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .solution-img-box {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-glow);
      box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
      position: relative;
    }
    .solution-specs-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .spec-item {
      display: flex;
      gap: 18px;
      padding: 16px 20px;
      background: rgba(16, 26, 54, 0.4);
      border: 1px solid rgba(255, 255, 255, 0.05);
      border-radius: var(--radius-md);
      transition: all 0.3s;
    }
    .spec-item:hover {
      border-color: var(--border-glow-hover);
      background: rgba(16, 26, 54, 0.85);
    }
    .spec-num {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: rgba(0, 102, 255, 0.2);
      border: 1px solid var(--primary-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-cyan);
      font-weight: 700;
      font-size: 15px;
      flex-shrink: 0;
    }
    .spec-text h4 {
      font-size: 16px;
      color: #FFFFFF;
      margin-bottom: 6px;
      font-weight: 600;
    }
    .spec-text p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 模块5: 六大核心技术优势网格 */
    .advantage-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .advantage-card {
      padding: 30px;
      position: relative;
    }
    .advantage-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: rgba(0, 210, 255, 0.1);
      border: 1px solid rgba(0, 210, 255, 0.3);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      color: var(--primary-cyan);
    }
    .advantage-icon svg {
      width: 24px;
      height: 24px;
    }
    .advantage-title {
      font-size: 18px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 12px;
    }
    .advantage-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 模块6: 热门检测服务套餐矩阵 */
    .service-pkg-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
      align-items: stretch;
    }
    .pkg-card {
      padding: 36px 30px;
      display: flex;
      flex-direction: column;
      position: relative;
    }
    .pkg-card.highlight {
      border: 2px solid var(--primary-cyan);
      box-shadow: 0 0 35px rgba(0, 210, 255, 0.3);
      background: rgba(18, 32, 68, 0.85);
    }
    .pkg-ribbon {
      position: absolute;
      top: -12px;
      right: 24px;
      background: linear-gradient(135deg, #00D2FF, #0066FF);
      color: #FFFFFF;
      padding: 4px 14px;
      border-radius: 20px;
      font-size: 12px;
      font-weight: 700;
      box-shadow: 0 4px 12px rgba(0, 210, 255, 0.4);
    }
    .pkg-title {
      font-size: 22px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 8px;
    }
    .pkg-sub {
      font-size: 13.5px;
      color: var(--text-muted);
      margin-bottom: 24px;
      min-height: 40px;
    }
    .pkg-items-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-bottom: 30px;
      flex-grow: 1;
    }
    .pkg-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: #E2E8F0;
    }
    .pkg-check-icon {
      color: var(--accent-neon);
      font-weight: bold;
    }
    .pkg-btn {
      width: 100%;
      text-align: center;
      padding: 12px 0;
      border-radius: 24px;
      font-weight: 600;
      font-size: 14.5px;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.18);
      color: #FFFFFF;
    }
    .pkg-card.highlight .pkg-btn {
      background: linear-gradient(135deg, var(--primary), var(--primary-cyan));
      border: none;
      box-shadow: 0 0 20px rgba(0, 210, 255, 0.4);
    }
    .pkg-btn:hover {
      box-shadow: 0 0 24px rgba(0, 210, 255, 0.55);
      transform: translateY(-2px);
    }

    /* 模块7: 核心数据中台与技术理念 */
    .philosophy-panel {
      border-radius: var(--radius-lg);
      padding: 56px 40px;
      background: radial-gradient(circle at 100% 0%, rgba(0, 210, 255, 0.15) 0%, rgba(11, 19, 43, 0.95) 70%);
      border: 1px solid var(--border-glow);
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }
    .philosophy-text h3 {
      font-size: 26px;
      color: #FFFFFF;
      margin-bottom: 18px;
    }
    .philosophy-text p {
      font-size: 15px;
      color: #CBD5E1;
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .vhi-score-card {
      background: rgba(7, 11, 20, 0.7);
      border: 1px solid rgba(0, 245, 212, 0.25);
      border-radius: var(--radius-md);
      padding: 28px;
      text-align: center;
    }
    .vhi-big-number {
      font-size: 54px;
      font-weight: 800;
      color: var(--accent-neon);
      text-shadow: 0 0 20px rgba(0, 245, 212, 0.5);
      line-height: 1;
      margin-bottom: 8px;
    }
    .vhi-label {
      font-size: 14px;
      color: var(--text-muted);
      letter-spacing: 1px;
    }

    /* 模块8: 汽车全生命周期检测流程 */
    .workflow-timeline {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      position: relative;
    }
    .step-card {
      padding: 24px 18px;
      background: rgba(16, 26, 54, 0.5);
      border: 1px solid rgba(0, 210, 255, 0.15);
      border-radius: var(--radius-md);
      position: relative;
    }
    .step-num-badge {
      font-size: 12px;
      font-weight: 800;
      color: var(--primary-cyan);
      background: rgba(0, 210, 255, 0.15);
      display: inline-block;
      padding: 2px 10px;
      border-radius: 12px;
      margin-bottom: 12px;
    }
    .step-name {
      font-size: 16px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 8px;
    }
    .step-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 模块9: 典型车况排雷档案复盘 */
    .case-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .case-card {
      padding: 32px;
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .case-badge-row {
      display: flex;
      gap: 10px;
      align-items: center;
    }
    .case-tag-warn {
      font-size: 12px;
      color: #FF708F;
      background: rgba(255, 51, 102, 0.15);
      border: 1px solid rgba(255, 51, 102, 0.3);
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 600;
    }
    .case-tag-car {
      font-size: 12px;
      color: var(--text-muted);
      background: rgba(255, 255, 255, 0.05);
      padding: 3px 8px;
      border-radius: 4px;
    }
    .case-title {
      font-size: 18px;
      font-weight: 700;
      color: #FFFFFF;
      line-height: 1.5;
    }
    .case-compare-box {
      background: rgba(7, 11, 20, 0.6);
      border-radius: 8px;
      padding: 16px;
      font-size: 13.5px;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .compare-line {
      display: flex;
      justify-content: space-between;
    }
    .compare-label {
      color: var(--text-dim);
    }
    .compare-val {
      font-weight: 600;
    }
    .val-danger {
      color: #FF5370;
    }
    .val-safe {
      color: var(--accent-neon);
    }

    /* 模块10: 平台关键成果数据指标 */
    .metrics-bar-section {
      background: linear-gradient(135deg, rgba(0, 39, 102, 0.7) 0%, rgba(5, 12, 28, 0.9) 100%);
      border-top: 1px solid var(--border-glow);
      border-bottom: 1px solid var(--border-glow);
      padding: 48px 0;
    }
    .metrics-counter-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .metric-counter-item {
      padding: 12px;
    }
    .counter-value {
      font-size: 40px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 6px;
      letter-spacing: -0.5px;
    }
    .counter-value span {
      color: var(--primary-cyan);
      font-size: 28px;
    }
    .counter-label {
      font-size: 14px;
      color: var(--text-muted);
    }

    /* 模块11: 适用人群与跨行业生态 */
    .ecosystem-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 22px;
    }
    .eco-card {
      padding: 26px 20px;
      border-top: 3px solid var(--primary);
    }
    .eco-title {
      font-size: 17px;
      color: #FFFFFF;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .eco-desc {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 模块12: 检测资讯与车况评测摘要 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .news-card {
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .news-meta-row {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-dim);
      margin-bottom: 12px;
    }
    .news-card-title {
      font-size: 16px;
      font-weight: 700;
      color: #FFFFFF;
      line-height: 1.5;
      margin-bottom: 12px;
    }
    .news-card-excerpt {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
    }
    .news-jump-link {
      font-size: 13.5px;
      color: var(--primary-cyan);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .news-jump-link:hover {
      text-decoration: underline;
    }

    /* 模块13: 质检信用与客户评价墙 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testi-card {
      padding: 28px;
    }
    .testi-stars {
      color: var(--accent-gold);
      font-size: 14px;
      margin-bottom: 12px;
      letter-spacing: 2px;
    }
    .testi-quote {
      font-size: 14px;
      color: #E2E8F0;
      line-height: 1.7;
      margin-bottom: 18px;
    }
    .testi-user-info {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 14px;
      font-size: 12.5px;
      color: var(--text-dim);
    }
    .testi-name {
      color: #FFFFFF;
      font-weight: 600;
    }

    /* 模块14: 高频常见问题 FAQ (手风琴) */
    .faq-accordion-box {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: var(--radius-sm);
      overflow: hidden;
      transition: all 0.3s;
    }
    .faq-question-btn {
      width: 100%;
      text-align: left;
      background: none;
      border: none;
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      color: #FFFFFF;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }
    .faq-icon-cross {
      font-size: 20px;
      color: var(--primary-cyan);
      transition: transform 0.3s;
    }
    .faq-answer-panel {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-out;
      background: rgba(7, 11, 20, 0.4);
    }
    .faq-answer-content {
      padding: 0 24px 20px;
      font-size: 14.5px;
      color: var(--text-muted);
      line-height: 1.8;
    }
    .faq-item.active .faq-icon-cross {
      transform: rotate(45deg);
    }

    /* 模块15: 极速预约与企业接入行动转化 CTA */
    .booking-wrapper {
      background: linear-gradient(135deg, rgba(16, 26, 54, 0.85) 0%, rgba(9, 19, 43, 0.95) 100%);
      border: 1px solid var(--border-glow-hover);
      border-radius: var(--radius-lg);
      padding: 48px;
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .booking-left h3 {
      font-size: 28px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 14px;
    }
    .booking-left p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .booking-assure-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 14px;
      color: #E2E8F0;
    }
    .booking-form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .form-group-custom select,
    .form-group-custom input {
      width: 100%;
      height: 48px;
      padding: 0 16px;
      background: rgba(7, 11, 20, 0.7);
      border: 1px solid rgba(0, 210, 255, 0.25);
      border-radius: 8px;
      color: #FFFFFF;
      font-size: 14px;
      outline: none;
      transition: border 0.3s;
    }
    .form-group-custom select:focus,
    .form-group-custom input:focus {
      border-color: var(--primary-cyan);
      box-shadow: 0 0 10px rgba(0, 210, 255, 0.3);
    }
    .form-submit-glow-btn {
      height: 50px;
      background: linear-gradient(135deg, #0052D4, #00D2FF);
      border: none;
      border-radius: 8px;
      color: #FFFFFF;
      font-size: 16px;
      font-weight: 700;
      cursor: pointer;
      box-shadow: 0 0 22px rgba(0, 210, 255, 0.45);
      transition: all 0.3s;
    }
    .form-submit-glow-btn:hover {
      box-shadow: 0 0 32px rgba(0, 245, 212, 0.6);
      transform: translateY(-2px);
    }

    /* 页脚 (Footer) */
    .site-footer {
      background: #04070D;
      border-top: 1px solid rgba(0, 210, 255, 0.15);
      padding: 64px 0 28px;
      font-size: 14px;
      color: var(--text-dim);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-col h4 {
      font-size: 16px;
      color: #FFFFFF;
      margin-bottom: 20px;
      font-weight: 600;
      position: relative;
      padding-bottom: 8px;
    }
    .footer-col h4::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 24px;
      height: 2px;
      background: var(--primary-cyan);
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: var(--primary-cyan);
    }
    .footer-contact-item {
      margin-bottom: 12px;
      line-height: 1.6;
    }
    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
    }
    .footer-bottom-bar a {
      color: var(--text-dim);
    }
    .footer-bottom-bar a:hover {
      color: var(--primary-cyan);
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid { grid-template-columns: 1fr; }
      .solution-split { grid-template-columns: 1fr; }
      .philosophy-panel { grid-template-columns: 1fr; }
      .workflow-timeline { grid-template-columns: repeat(3, 1fr); }
      .ecosystem-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 768px) {
      .main-nav, .header-cta-btn { display: none; }
      .mobile-menu-btn { display: block; }
      .hero-content h1 { font-size: 32px; }
      .painpoint-grid,
      .advantage-grid,
      .service-pkg-grid,
      .case-grid,
      .news-grid,
      .testimonials-grid,
      .metrics-counter-grid { grid-template-columns: 1fr; }
      .workflow-timeline { grid-template-columns: 1fr; }
      .ecosystem-grid { grid-template-columns: 1fr; }
      .booking-wrapper { grid-template-columns: 1fr; padding: 28px 20px; }
      .footer-grid { grid-template-columns: 1fr; }
      .top-bar-left span:nth-child(2) { display: none; }
    }