/* roulang page: index */
:root {
      --primary: #185AEF;
      --primary-hover: #0E47CA;
      --primary-light: #EBF2FF;
      --accent: #F59E0B;
      --accent-hover: #D97706;
      --dark-navy: #0F172A;
      --dark-surface: #1E293B;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-light: #94A3B8;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --border-color: #E2E8F0;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -2px rgba(0,0,0,0.05);
      --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --radius-full: 9999px;
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

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

    body {
      font-family: var(--font-stack);
      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: all 0.25s ease;
    }

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

    button, input, textarea, select {
      font-family: inherit;
      outline: none;
    }

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

    /* 顶部导航 */
    .topbar-mini {
      background: #090E1A;
      color: var(--text-light);
      font-size: 13px;
      border-bottom: 1px solid rgba(255,255,255,0.08);
      padding: 6px 0;
    }
    .topbar-mini-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .topbar-mini-status {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      background: #10B981;
      border-radius: 50%;
      box-shadow: 0 0 8px #10B981;
    }

    .main-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(15, 23, 42, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .logo-box {
      display: flex;
      align-items: center;
      gap: 12px;
      color: #FFFFFF;
      font-size: 20px;
      font-weight: 700;
      letter-spacing: -0.5px;
    }
    .logo-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary) 0%, #3B82F6 100%);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFFFFF;
      font-size: 18px;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 28px;
    }
    .nav-menu a {
      color: #CBD5E1;
      font-size: 15px;
      font-weight: 500;
    }
    .nav-menu a:hover {
      color: #FFFFFF;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    /* 按钮通用体系 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 15px;
      font-weight: 600;
      padding: 12px 24px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: all 0.25s ease;
      border: 1px solid transparent;
      line-height: 1.2;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #FFFFFF;
    }
    .btn-primary:hover {
      background-color: var(--primary-hover);
      box-shadow: 0 4px 12px rgba(24, 90, 239, 0.35);
      transform: translateY(-2px);
    }
    .btn-accent {
      background-color: var(--accent);
      color: #FFFFFF;
    }
    .btn-accent:hover {
      background-color: var(--accent-hover);
      box-shadow: 0 4px 12px rgba(245, 158, 11, 0.35);
      transform: translateY(-2px);
    }
    .btn-outline {
      background-color: transparent;
      border-color: rgba(255, 255, 255, 0.25);
      color: #FFFFFF;
    }
    .btn-outline:hover {
      border-color: #FFFFFF;
      background: rgba(255, 255, 255, 0.08);
      transform: translateY(-2px);
    }
    .btn-outline-dark {
      background-color: transparent;
      border-color: var(--border-color);
      color: var(--text-main);
    }
    .btn-outline-dark:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: var(--primary-light);
    }

    /* 板块通用体系 */
    section {
      padding: 96px 0;
      position: relative;
    }
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 56px auto;
    }
    .section-header.text-left {
      text-align: left;
      margin: 0 0 48px 0;
      max-width: 100%;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      background: var(--primary-light);
      padding: 4px 14px;
      border-radius: var(--radius-full);
      margin-bottom: 14px;
      letter-spacing: 0.5px;
      text-transform: uppercase;
    }
    .section-tag.tag-amber {
      color: #B45309;
      background: #FEF3C7;
    }
    .section-title {
      font-size: 34px;
      font-weight: 700;
      line-height: 1.3;
      color: var(--text-main);
      margin-bottom: 18px;
      letter-spacing: -0.5px;
    }
    .section-subtitle {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 1. 首屏 Hero */
    .hero-section {
      padding: 80px 0 100px;
      background: url('/assets/images/20d1c5c70a129acc.png') no-be-repeat center center;
      background-size: cover;
      position: relative;
      color: #FFFFFF;
    }
    .hero-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.95) 0%, rgba(15, 23, 42, 0.88) 100%);
    }
    .hero-content-wrap {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 56px;
      align-items: center;
    }
    .hero-h1 {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -1px;
      margin-bottom: 22px;
      color: #FFFFFF;
    }
    .hero-h1 span {
      background: linear-gradient(90deg, #60A5FA 0%, #93C5FD 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-lead {
      font-size: 17px;
      line-height: 1.8;
      color: #CBD5E1;
      margin-bottom: 36px;
    }
    .hero-ctas {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }
    .hero-meta-badges {
      display: flex;
      gap: 24px;
      border-top: 1px solid rgba(255,255,255,0.15);
      padding-top: 24px;
    }
    .hero-badge-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: #94A3B8;
    }
    .hero-badge-item svg {
      width: 18px;
      height: 18px;
      fill: #38BDF8;
    }

    /* 首屏右侧数据看板模型 */
    .dashboard-preview-card {
      background: rgba(30, 41, 59, 0.75);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
      backdrop-filter: blur(16px);
    }
    .preview-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid rgba(255,255,255,0.1);
      padding-bottom: 14px;
      margin-bottom: 20px;
    }
    .preview-dots {
      display: flex;
      gap: 6px;
    }
    .preview-dots span {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #475569;
    }
    .preview-dots span:nth-child(1) { background: #EF4444; }
    .preview-dots span:nth-child(2) { background: #F59E0B; }
    .preview-dots span:nth-child(3) { background: #10B981; }
    .preview-grid-mini {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
      margin-bottom: 20px;
    }
    .preview-stat-card {
      background: rgba(15, 23, 42, 0.6);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-sm);
      padding: 14px;
    }
    .preview-stat-card .label {
      font-size: 12px;
      color: #94A3B8;
      margin-bottom: 6px;
    }
    .preview-stat-card .val {
      font-size: 22px;
      font-weight: 700;
      color: #FFFFFF;
    }
    .preview-stat-card .trend {
      font-size: 11px;
      color: #34D399;
      margin-top: 4px;
    }
    .preview-chart-box {
      border-radius: var(--radius-sm);
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.08);
      position: relative;
    }
    .preview-chart-box img {
      width: 100%;
      height: 180px;
      object-fit: cover;
    }

    /* 2. 架构与产品介绍 */
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
    }
    .intro-specs-list {
      margin-top: 32px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .spec-item {
      background: #FFFFFF;
      padding: 18px 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }
    .spec-item-num {
      font-size: 24px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
    }
    .spec-item-desc {
      font-size: 13px;
      color: var(--text-muted);
    }
    .intro-visual-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-xl);
    }
    .intro-visual-card img {
      border-radius: var(--radius-md);
      width: 100%;
      height: 380px;
      object-fit: cover;
    }

    /* 3. 核心优势六卡片 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .feature-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 36px 30px;
      transition: all 0.3s ease;
      box-shadow: var(--shadow-sm);
    }
    .feature-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-xl);
      border-color: rgba(24, 90, 239, 0.3);
    }
    .feature-icon-wrapper {
      width: 52px;
      height: 52px;
      background: var(--primary-light);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 22px;
      color: var(--primary);
    }
    .feature-icon-wrapper svg {
      width: 26px;
      height: 26px;
      fill: currentColor;
    }
    .feature-title {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .feature-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 4. 行业解决方案三卡片 */
    .solutions-bg {
      background-color: #F1F5F9;
    }
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }
    .solution-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      flex-direction: column;
    }
    .solution-img-box {
      height: 190px;
      overflow: hidden;
      position: relative;
    }
    .solution-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .solution-card:hover .solution-img-box img {
      transform: scale(1.05);
    }
    .solution-body {
      padding: 28px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .solution-type {
      font-size: 12px;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-bottom: 8px;
    }
    .solution-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .solution-desc {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.6;
    }
    .solution-features-list {
      list-style: none;
      margin-bottom: 24px;
      flex: 1;
    }
    .solution-features-list li {
      font-size: 13px;
      color: #334155;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .solution-features-list li::before {
      content: "✓";
      color: #10B981;
      font-weight: bold;
    }

    /* 5. 深色对比技术底座 */
    .tech-deep-section {
      background: var(--dark-navy);
      color: #FFFFFF;
    }
    .tech-deep-section .section-title {
      color: #FFFFFF;
    }
    .tech-deep-section .section-subtitle {
      color: #94A3B8;
    }
    .tech-arch-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .tech-arch-card {
      background: var(--dark-surface);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      text-align: left;
    }
    .tech-arch-level {
      font-size: 12px;
      font-weight: 700;
      color: #38BDF8;
      margin-bottom: 10px;
      display: block;
    }
    .tech-arch-title {
      font-size: 17px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 12px;
    }
    .tech-arch-desc {
      font-size: 13px;
      color: #94A3B8;
      line-height: 1.6;
    }

    /* 6. 客户案例与前后对比 */
    .case-tab-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 40px;
      box-shadow: var(--shadow-md);
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .case-metric-compare {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-top: 24px;
    }
    .compare-box {
      border-radius: var(--radius-md);
      padding: 18px;
    }
    .compare-box.before {
      background: #FEE2E2;
      border: 1px solid #FECACA;
    }
    .compare-box.after {
      background: #DCFCE7;
      border: 1px solid #BBF7D0;
    }
    .compare-box .label {
      font-size: 12px;
      font-weight: 600;
      margin-bottom: 6px;
    }
    .compare-box.before .label { color: #991B1B; }
    .compare-box.after .label { color: #166534; }
    .compare-box .num {
      font-size: 26px;
      font-weight: 800;
    }
    .compare-box.before .num { color: #DC2626; }
    .compare-box.after .num { color: #16A34A; }
    .compare-box .text {
      font-size: 12px;
      margin-top: 4px;
      color: #475569;
    }

    /* 7. 关键运营数据统计条 */
    .metrics-bar-section {
      background: #1E293B;
      padding: 60px 0;
      border-top: 1px solid rgba(255,255,255,0.06);
      border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }
    .metric-col {
      border-right: 1px solid rgba(255,255,255,0.1);
    }
    .metric-col:last-child {
      border-right: none;
    }
    .metric-number {
      font-size: 40px;
      font-weight: 800;
      color: #F8FAFC;
      line-height: 1;
      margin-bottom: 10px;
      font-feature-settings: "tnum";
    }
    .metric-number span {
      color: var(--accent);
      font-size: 24px;
      margin-left: 4px;
    }
    .metric-label {
      font-size: 14px;
      color: #94A3B8;
      font-weight: 500;
    }

    /* 8. 客户评价与认同区 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .review-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 32px 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .review-stars {
      color: #F59E0B;
      font-size: 16px;
      margin-bottom: 16px;
      letter-spacing: 2px;
    }
    .review-content {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .review-user-info {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid var(--border-color);
      padding-top: 18px;
    }
    .review-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: 700;
      font-size: 16px;
    }
    .review-user-name {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }
    .review-user-role {
      font-size: 12px;
      color: var(--text-light);
    }

    /* 9. 新闻资讯与更新日志 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .news-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .news-img-box {
      height: 170px;
      overflow: hidden;
    }
    .news-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .news-date {
      font-size: 12px;
      color: var(--text-light);
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.4;
}
    .news-summary {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
      flex: 1;
    }
    .news-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .news-link:hover {
      color: var(--primary-hover);
    }

    /* 10. 常见异议与 FAQ */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      overflow: hidden;
      transition: all 0.25s ease;
    }
    .faq-item.active {
      border-color: var(--primary);
      background: #FAF5FF;
    }
    .faq-question {
      padding: 22px 28px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      user-select: none;
    }
    .faq-icon {
      font-size: 20px;
      line-height: 1;
      color: var(--text-light);
      transition: transform 0.25s ease;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      color: var(--primary);
    }
    .faq-answer {
      display: none;
      padding: 0 28px 22px 28px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .faq-item.active .faq-answer {
      display: block;
    }

    /* 11. 安全与交付保障条 */
    .guarantee-bar {
      background: #FFFFFF;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 48px 0;
    }
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 28px;
    }
    .guarantee-item {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .guarantee-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }
    .guarantee-icon svg {
      width: 24px;
      height: 24px;
      fill: currentColor;
    }
    .guarantee-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .guarantee-desc {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 12. 转化与预约演示表单 */
    .conversion-section {
      background: radial-gradient(circle at 50% 0%, #1E293B 0%, #0F172A 100%);
      color: #FFFFFF;
      padding: 96px 0;
    }
    .conversion-card {
      max-width: 800px;
      margin: 0 auto;
      background: rgba(30, 41, 59, 0.8);
      border: 1px solid rgba(255,255,255,0.12);
      border-radius: var(--radius-lg);
      padding: 48px;
      box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
    }
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-top: 32px;
    }
    .form-group-full {
      grid-column: span 2;
    }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 8px;
      color: #CBD5E1;
    }
    .form-control {
      width: 100%;
      height: 48px;
      background: rgba(15, 23, 42, 0.7);
      border: 1px solid rgba(255,255,255,0.18);
      border-radius: var(--radius-sm);
      padding: 0 16px;
      color: #FFFFFF;
      font-size: 14px;
      transition: border-color 0.2s ease;
    }
    .form-control:focus {
      border-color: #38BDF8;
      background: rgba(15, 23, 42, 0.95);
    }
    select.form-control option {
      background: #0F172A;
      color: #FFFFFF;
    }
    textarea.form-control {
      height: 108px;
      padding: 12px 16px;
      resize: vertical;
    }
    .form-submit-btn {
      width: 100%;
      height: 52px;
      font-size: 16px;
      font-weight: 700;
      margin-top: 10px;
    }

    /* 底部通用页脚 */
    .main-footer {
      background: #0B1120;
      color: #94A3B8;
      padding: 72px 0 36px 0;
      border-top: 1px solid rgba(255,255,255,0.06);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 48px;
      margin-bottom: 56px;
    }
    .footer-brand-title {
      font-size: 18px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 16px;
    }
    .footer-brand-intro {
      font-size: 13px;
      line-height: 1.8;
      color: #64748B;
      margin-bottom: 20px;
    }
    .footer-col-title {
      font-size: 15px;
      font-weight: 600;
      color: #FFFFFF;
      margin-bottom: 20px;
    }
    .footer-links-list {
      list-style: none;
    }
    .footer-links-list li {
      margin-bottom: 12px;
    }
    .footer-links-list a {
      font-size: 13px;
      color: #94A3B8;
    }
    .footer-links-list a:hover {
      color: #FFFFFF;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.08);
      padding-top: 32px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: #64748B;
      flex-wrap: wrap;
      gap: 16px;
    }

    /* 底部固定转化浮动条 */
    .bottom-strip {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(15, 23, 42, 0.95);
      border-top: 1px solid rgba(255,255,255,0.12);
      padding: 12px 24px;
      z-index: 999;
      backdrop-filter: blur(8px);
      box-shadow: 0 -4px 16px rgba(0,0,0,0.25);
    }
    .bottom-strip-inner {
      max-width: 1240px;
      margin: 0 auto;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .bottom-strip-title {
      color: #FFFFFF;
      font-size: 14px;
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .bottom-strip-title span {
      color: var(--accent);
    }
    .bottom-strip-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-close-strip {
      background: none;
      border: none;
      color: #94A3B8;
      font-size: 20px;
      cursor: pointer;
      padding: 4px;
      line-height: 1;
    }
    .btn-close-strip:hover {
      color: #FFFFFF;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-content-wrap {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .intro-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .features-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .tech-arch-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .case-tab-card {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .topbar-mini {
        display: none;
      }
      .nav-menu {
        display: none;
      }
      .hero-h1 {
        font-size: 30px;
      }
      .section-title {
        font-size: 26px;
      }
      .features-grid {
        grid-template-columns: 1fr;
      }
      .solutions-grid {
        grid-template-columns: 1fr;
      }
      .tech-arch-grid {
        grid-template-columns: 1fr;
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
      }
      .metric-col {
        border-right: none;
      }
      .reviews-grid {
        grid-template-columns: 1fr;
      }
      .news-grid {
        grid-template-columns: 1fr;
      }
      .guarantee-grid {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .form-group-full {
        grid-column: span 1;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .bottom-strip-title {
        display: none;
      }
      .conversion-card {
        padding: 24px;
      }
    }