/* roulang page: index */
:root {
      --primary: #2563eb;
      --primary-dark: #1d4ed8;
      --primary-accent: #6366f1;
      --accent-neon: #06b6d4;
      --accent-green: #10b981;
      --bg-light: #f8fafc;
      --bg-white: #ffffff;
      --bg-card: #ffffff;
      --bg-dark: #0b0f19;
      --bg-dark-surface: #111827;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-sub: #64748b;
      --text-light: #f1f5f9;
      --border-color: rgba(226, 232, 240, 0.9);
      --border-dark: rgba(255, 255, 255, 0.1);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.04);
      --shadow-md: 0 8px 24px -4px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 16px 36px -6px rgba(15, 23, 42, 0.12);
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    body {
      font-family: system-ui, -apple-system, 'PingFang SC', 'Segoe UI', 'Microsoft YaHei', sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.65;
      font-size: 15px;
      overflow-x: hidden;
    }

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

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

    ul, ol {
      list-style: none;
    }

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

    /* 按钮与交互徽标 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 26px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      text-align: center;
      gap: 8px;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--primary-accent));
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, var(--primary-dark), var(--primary));
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
    }

    .btn-outline {
      background: transparent;
      color: var(--text-main);
      border-color: #cbd5e1;
    }

    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: rgba(37, 99, 235, 0.04);
    }

    .btn-dark-primary {
      background: linear-gradient(135deg, #06b6d4, #3b82f6);
      color: #04101e;
      font-weight: 700;
      box-shadow: 0 4px 14px rgba(6, 182, 212, 0.3);
    }

    .btn-dark-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 22px rgba(6, 182, 212, 0.45);
    }

    .btn-dark-outline {
      background: transparent;
      color: #f8fafc;
      border-color: rgba(255, 255, 255, 0.25);
    }

    .btn-dark-outline:hover {
      border-color: #38bdf8;
      color: #38bdf8;
      background: rgba(56, 189, 248, 0.08);
    }

    .badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 12px;
      font-size: 13px;
      font-weight: 600;
      border-radius: 9999px;
      background: rgba(37, 99, 235, 0.08);
      color: var(--primary);
      border: 1px solid rgba(37, 99, 235, 0.2);
    }

    /* 顶部双行导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }

    .header-top-bar {
      background: #0f172a;
      color: #94a3b8;
      font-size: 12px;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .top-bar-meta {
      display: flex;
      gap: 20px;
    }

    .top-bar-meta span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .status-dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background-color: var(--accent-green);
      display: inline-block;
      box-shadow: 0 0 8px var(--accent-green);
    }

    .header-main-nav {
      padding: 14px 0;
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 800;
      color: #0f172a;
      letter-spacing: -0.5px;
    }

    .brand-logo svg {
      width: 32px;
      height: 32px;
      color: var(--primary);
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
    }

    .nav-item {
      font-size: 14px;
      font-weight: 500;
      color: #334155;
      position: relative;
      padding: 6px 0;
    }

    .nav-item:hover, .nav-item.active {
      color: var(--primary);
    }

    .nav-item.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }

    /* 通用板块样式与标题 */
    section {
      padding: 72px 0;
      position: relative;
    }

    .section-title-wrap {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 48px;
    }

    .section-subtitle {
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      color: var(--primary);
      margin-bottom: 8px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: #0f172a;
      line-height: 1.3;
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 1. 首屏裂变邀请与角色生成控制台 */
    .hero-section {
      padding: 60px 0 80px;
      background: radial-gradient(circle at 80% 20%, rgba(37, 99, 235, 0.08) 0%, rgba(248, 250, 252, 0) 60%), #ffffff;
      border-bottom: 1px solid var(--border-color);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }

    .hero-h1 {
      font-size: 42px;
      font-weight: 800;
      line-height: 1.25;
      color: #0f172a;
      margin: 16px 0 20px;
      letter-spacing: -0.8px;
    }

    .hero-h1 span {
      background: linear-gradient(120deg, #1d4ed8, #06b6d4);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 16px;
      color: #334155;
      line-height: 1.75;
      margin-bottom: 28px;
    }

    .hero-action-group {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 32px;
    }

    /* 首屏裂变进度面板 */
    .fission-banner-card {
      background: #f1f5f9;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 18px 22px;
    }

    .fission-top {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 10px;
      font-size: 13px;
      font-weight: 600;
      color: #1e293b;
    }

    .progress-bar-wrap {
      width: 100%;
      height: 8px;
      background: #cbd5e1;
      border-radius: 9999px;
      overflow: hidden;
      margin-bottom: 8px;
    }

    .progress-fill {
      width: 78%;
      height: 100%;
      background: linear-gradient(90deg, #2563eb, #06b6d4);
      border-radius: 9999px;
    }

    .fission-meta {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-sub);
    }

    .hero-media-box {
      position: relative;
      background: #0f172a;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .hero-media-box img {
      width: 100%;
      height: 480px;
      object-fit: cover;
      opacity: 0.92;
    }

    .hero-media-badge {
      position: absolute;
      bottom: 20px;
      left: 20px;
      right: 20px;
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(12px);
      padding: 14px 18px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.12);
      display: flex;
      align-items: center;
      justify-content: space-between;
      color: #f8fafc;
      font-size: 13px;
    }

    /* 2. 算力倒计时活动条 */
    .countdown-strip {
      background: #0f172a;
      color: #ffffff;
      padding: 24px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .countdown-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
    }

    .countdown-text {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .countdown-text h3 {
      font-size: 16px;
      font-weight: 700;
      color: #ffffff;
    }

    .countdown-text p {
      font-size: 13px;
      color: #94a3b8;
    }

    .countdown-clocks {
      display: flex;
      align-items: center;
      gap: 12px;
      font-family: monospace;
    }

    .clock-box {
      background: #1e293b;
      padding: 8px 14px;
      border-radius: 6px;
      font-size: 20px;
      font-weight: 800;
      color: #38bdf8;
      border: 1px solid rgba(56, 189, 248, 0.2);
    }

    /* 3. 核心技术落地与工业指标 */
    .tech-specs-section {
      background: #ffffff;
    }

    .tech-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .tech-media {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      border: 1px solid #e2e8f0;
    }

    .tech-media img {
      width: 100%;
      height: 420px;
      object-fit: cover;
    }

    .spec-points-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
      margin-top: 24px;
    }

    .spec-item {
      display: flex;
      gap: 16px;
      align-items: flex-start;
    }

    .spec-icon {
      width: 40px;
      height: 40px;
      border-radius: 8px;
      background: rgba(37, 99, 235, 0.1);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      flex-shrink: 0;
    }

    .spec-content h4 {
      font-size: 16px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 4px;
    }

    .spec-content p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 4. 核心优势区（6卡片阵列） */
    .features-section {
      background: #f8fafc;
    }

    .card-grid-6 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .feature-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #cbd5e1;
    }

    .feature-card-icon {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: #eff6ff;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
      font-weight: 800;
    }

    .feature-card h3 {
      font-size: 17px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 10px;
    }

    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 5. 热门产品体系区（3大解决方案矩阵） */
    .matrix-section {
      background: #ffffff;
    }

    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .matrix-card {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }

    .matrix-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: #93c5fd;
    }

    .matrix-thumb {
      height: 200px;
      overflow: hidden;
      position: relative;
    }

    .matrix-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .matrix-card:hover .matrix-thumb img {
      transform: scale(1.05);
    }

    .matrix-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .matrix-tags {
      display: flex;
      gap: 6px;
      margin-bottom: 12px;
      flex-wrap: wrap;
    }

    .tag-sm {
      font-size: 11px;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 4px;
      background: #f1f5f9;
      color: #475569;
    }

    .matrix-body h3 {
      font-size: 19px;
      font-weight: 800;
      margin-bottom: 10px;
      color: #0f172a;
    }

    .matrix-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
      flex-grow: 1;
    }

    .matrix-footer {
      border-top: 1px solid #f1f5f9;
      padding-top: 16px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    /* 6. 深色案例对比区（沉浸式工作台） */
    .dark-showcase-section {
      background: var(--bg-dark);
      color: #f8fafc;
      padding: 84px 0;
    }

    .dark-showcase-section .section-title {
      color: #ffffff;
    }

    .dark-showcase-section .section-desc {
      color: #94a3b8;
    }

    .turnaround-panel {
      background: var(--bg-dark-surface);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 32px;
      margin-top: 40px;
    }

    .turnaround-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 36px;
      align-items: center;
    }

    .turnaround-view {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.08);
      position: relative;
    }

    .turnaround-view img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }

    .turnaround-content h3 {
      font-size: 22px;
      font-weight: 700;
      color: #38bdf8;
      margin-bottom: 14px;
    }

    .turnaround-content p {
      font-size: 14px;
      color: #cbd5e1;
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .pipeline-indicators {
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-bottom: 24px;
    }

    .pipe-step {
      display: flex;
      justify-content: space-between;
      padding: 10px 14px;
      background: rgba(255, 255, 255, 0.03);
      border-radius: 6px;
      font-size: 13px;
      border-left: 3px solid #06b6d4;
    }

    /* 7. 标准化流程步骤区 */
    .workflow-section {
      background: #ffffff;
    }

    .step-grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .step-card {
      background: #f8fafc;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      position: relative;
    }

    .step-num {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      font-size: 14px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 14px;
    }

    .step-card h3 {
      font-size: 16px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
    }

    .step-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 8. 权益与礼包说明 */
    .reward-preview-section {
      background: linear-gradient(180deg, #f8fafc 0%, #eff6ff 100%);
    }

    .reward-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .reward-box {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid #dbeafe;
      padding: 28px;
      text-align: center;
      box-shadow: var(--shadow-sm);
    }

    .reward-icon-circle {
      width: 56px;
      height: 56px;
      background: #eff6ff;
      border-radius: 50%;
      margin: 0 auto 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 22px;
      font-weight: 800;
    }

    .reward-box h3 {
      font-size: 18px;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 10px;
    }

    .reward-box p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
    }

    .reward-tag {
      font-size: 12px;
      font-weight: 700;
      color: var(--primary);
      background: rgba(37, 99, 235, 0.08);
      padding: 4px 12px;
      border-radius: 9999px;
      display: inline-block;
    }

    /* 9. 落地案例深度剖析 */
    .case-story-section {
      background: #ffffff;
    }

    .case-container {
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-lg);
      padding: 40px;
    }

    .case-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .case-image {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }

    .case-image img {
      width: 100%;
      height: 360px;
      object-fit: cover;
    }

    .case-detail h3 {
      font-size: 24px;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 14px;
    }

    .case-detail p {
      font-size: 15px;
      color: #334155;
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .case-metrics-bar {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      padding-top: 20px;
      border-top: 1px solid #e2e8f0;
    }

    .case-metric-item strong {
      display: block;
      font-size: 24px;
      font-weight: 800;
      color: var(--primary);
    }

    .case-metric-item span {
      font-size: 12px;
      color: var(--text-sub);
    }

    /* 10. 成果量化统计条 */
    .stats-bar-section {
      background: #0f172a;
      color: #ffffff;
      padding: 60px 0;
    }

    .stats-grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }

    .stat-number {
      font-size: 40px;
      font-weight: 900;
      color: #38bdf8;
      line-height: 1.1;
      margin-bottom: 8px;
    }

    .stat-label {
      font-size: 15px;
      font-weight: 600;
      color: #e2e8f0;
      margin-bottom: 4px;
    }

    .stat-sub {
      font-size: 12px;
      color: #94a3b8;
    }

    /* 11. 客户证言与行业背书 */
    .testimonial-section {
      background: #f8fafc;
    }

    .testi-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .testi-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
    }

    .testi-quote {
      font-size: 14px;
      color: #334155;
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .testi-author {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #cbd5e1;
      overflow: hidden;
    }

    .author-avatar img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .author-info h4 {
      font-size: 14px;
      font-weight: 700;
      color: #0f172a;
    }

    .author-info p {
      font-size: 12px;
      color: var(--text-sub);
    }

    /* 12. 技术资讯与行业洞察 */
    .news-section {
      background: #ffffff;
    }

    .news-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .news-card {
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      overflow: hidden;
      background: #ffffff;
      transition: var(--transition);
    }

    .news-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }

    .news-card-thumb {
      height: 180px;
      overflow: hidden;
    }

    .news-card-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .news-card-body {
      padding: 20px;
    }

    .news-date {
      font-size: 12px;
      color: var(--text-sub);
      margin-bottom: 8px;
    }

    .news-card-body h3 {
      font-size: 16px;
      font-weight: 700;
      line-height: 1.45;
      color: #0f172a;
      margin-bottom: 10px;
    }

    .news-card-body p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
    }

    .news-link-btn {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 13. FAQ 常见解答 */
    .faq-section {
      background: #f8fafc;
    }

    .faq-container {
      max-width: 820px;
      margin: 0 auto;
    }

    .accordion-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      overflow: hidden;
    }

    .accordion-header {
      width: 100%;
      padding: 18px 24px;
      text-align: left;
      background: transparent;
      border: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 16px;
      font-weight: 700;
      color: #0f172a;
      cursor: pointer;
    }

    .accordion-icon {
      font-size: 18px;
      font-weight: 400;
      transition: transform 0.25s ease;
    }

    .accordion-body {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      display: block;
    }

    .accordion-item:not(.active) .accordion-body {
      display: none;
    }

    .accordion-item.active .accordion-icon {
      transform: rotate(45deg);
    }

    /* 14. 强转化行动区 (CTA) */
    .cta-banner-section {
      background: linear-gradient(135deg, #0b0f19 0%, #1e1b4b 100%);
      color: #ffffff;
      padding: 80px 0;
      text-align: center;
    }

    .cta-box {
      max-width: 760px;
      margin: 0 auto;
    }

    .cta-box h2 {
      font-size: 36px;
      font-weight: 800;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }

    .cta-box p {
      font-size: 16px;
      color: #cbd5e1;
      line-height: 1.7;
      margin-bottom: 32px;
    }

    .cta-form-inline {
      display: flex;
      justify-content: center;
      gap: 12px;
      max-width: 500px;
      margin: 0 auto;
      flex-wrap: wrap;
    }

    .cta-input {
      padding: 12px 18px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.2);
      background: rgba(255, 255, 255, 0.08);
      color: #ffffff;
      font-size: 14px;
      flex-grow: 1;
      outline: none;
    }

    .cta-input::placeholder {
      color: #94a3b8;
    }

    .cta-input:focus {
      border-color: #38bdf8;
      background: rgba(255, 255, 255, 0.12);
    }

    /* 底部页脚 (Footer) */
    .site-footer {
      background: #0b0f19;
      color: #94a3b8;
      font-size: 14px;
      padding: 72px 0 32px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 48px;
      margin-bottom: 56px;
    }

    .footer-brand h3 {
      font-size: 20px;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 14px;
    }

    .footer-brand p {
      font-size: 13px;
      line-height: 1.7;
      color: #94a3b8;
      margin-bottom: 18px;
    }

    .footer-title {
      font-size: 15px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 18px;
    }

    .footer-links li {
      margin-bottom: 10px;
    }

    .footer-links a {
      color: #94a3b8;
    }

    .footer-links a:hover {
      color: #38bdf8;
    }

    .footer-compliance p {
      font-size: 13px;
      line-height: 1.8;
      margin-bottom: 6px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 28px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: #64748b;
      flex-wrap: wrap;
      gap: 12px;
    }

    /* 移动端与响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid, .tech-grid, .turnaround-grid, .case-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .card-grid-6, .matrix-grid, .reward-grid, .testi-grid-3, .news-grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .step-grid-4, .stats-grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .header-top-bar {
        display: none;
      }
      .nav-menu {
        display: none;
      }
      .card-grid-6, .matrix-grid, .reward-grid, .testi-grid-3, .news-grid-3, .step-grid-4, .stats-grid-4, .footer-grid {
        grid-template-columns: 1fr;
      }
      .hero-h1 {
        font-size: 30px;
      }
      .section-title {
        font-size: 26px;
      }
      .case-metrics-bar {
        grid-template-columns: 1fr;
      }
      .countdown-inner {
        flex-direction: column;
        align-items: flex-start;
      }
      .cta-form-inline {
        flex-direction: column;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }