/* roulang page: index */
:root {
      --primary: #FF5722;
      --primary-hover: #E64A19;
      --primary-soft: #FFF3E0;
      --secondary: #0D47A1;
      --secondary-dark: #0A192F;
      --accent: #FFB300;
      --accent-hover: #FFA000;
      --dark-bg: #0B0F19;
      --dark-card: #151D2E;
      --dark-border: #232F48;
      --light-bg: #F8FAFC;
      --white: #FFFFFF;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border: #E2E8F0;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 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);
      --shadow-accent: 0 8px 20px -2px rgba(255, 87, 34, 0.28);
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--white);
      color: var(--text-body);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    ul, ol {
      list-style: none;
    }
    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }
    /* 顶部工具栏与主导航 */
    .top-bar {
      background: var(--dark-bg);
      color: #94A3B8;
      font-size: 13px;
      padding: 8px 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-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--accent);
    }
    .top-bar-badge::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 8px var(--accent);
    }
    .main-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);
      box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.04);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }
    .logo-icon {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--primary) 0%, #D84315 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--white);
      font-weight: 900;
      font-size: 20px;
      box-shadow: 0 4px 12px rgba(255, 87, 34, 0.35);
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 32px;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-body);
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .nav-link::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary);
      transition: var(--transition);
    }
    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }
    .nav-cta {
      display: inline-flex;
      align-items: center;
      padding: 10px 22px;
      background: var(--primary);
      color: var(--white);
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-size: 14px;
      box-shadow: var(--shadow-accent);
    }
    .nav-cta:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
    }
    /* 按钮通用 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 14px 28px;
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-size: 15px;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
    }
    .btn-primary {
      background: var(--primary);
      color: var(--white);
      box-shadow: var(--shadow-accent);
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 10px 24px -2px rgba(255, 87, 34, 0.38);
    }
    .btn-outline {
      background: transparent;
      border-color: rgba(255, 255, 255, 0.3);
      color: var(--white);
    }
    .btn-outline:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: var(--white);
      transform: translateY(-2px);
    }
    .btn-secondary {
      background: var(--white);
      color: var(--secondary);
      box-shadow: var(--shadow-md);
    }
    .btn-secondary:hover {
      background: #F1F5F9;
      transform: translateY(-2px);
    }
    /* 标题统一样式 */
    .section {
      padding: 90px 0;
      position: relative;
    }
    .section-light {
      background-color: var(--light-bg);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }
    .section-dark {
      background-color: var(--dark-bg);
      color: #E2E8F0;
    }
    .section-header {
      max-width: 780px;
      margin: 0 auto 56px auto;
      text-align: center;
    }
    .section-tag {
      display: inline-block;
      padding: 4px 12px;
      background: rgba(255, 87, 34, 0.1);
      color: var(--primary);
      border-radius: 30px;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.5px;
      margin-bottom: 14px;
      border: 1px solid rgba(255, 87, 34, 0.2);
    }
    .section-dark .section-tag {
      background: rgba(255, 179, 0, 0.15);
      color: var(--accent);
      border-color: rgba(255, 179, 0, 0.3);
    }
    .section-title {
      font-size: 34px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-dark .section-title {
      color: var(--white);
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
    }
    .section-dark .section-desc {
      color: #94A3B8;
    }
    /* 1. 首屏 Hero */
    .hero-section {
      position: relative;
      background: radial-gradient(circle at 80% 20%, #1A237E 0%, var(--dark-bg) 75%);
      color: var(--white);
      padding: 90px 0 100px;
      overflow: hidden;
    }
    .hero-bg-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-image: url('/assets/images/84b8b01d369a0bb1.jpg');
      background-size: cover;
      background-position: center;
      opacity: 0.18;
      mix-blend-mode: overlay;
      pointer-events: none;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 50px;
      align-items: center;
      position: relative;
      z-index: 2;
    }
    .hero-content h1 {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.25;
      letter-spacing: -0.8px;
      margin-bottom: 22px;
    }
    .hero-content h1 span {
      background: linear-gradient(90deg, #FF7043, #FFB300);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-lead {
      font-size: 16px;
      color: #CBD5E1;
      line-height: 1.8;
      margin-bottom: 32px;
      text-align: justify;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }
    .hero-badges-row {
      display: flex;
      gap: 20px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
    }
    .hero-mini-badge {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: #94A3B8;
    }
    .hero-mini-badge strong {
      color: var(--white);
    }
    /* 蓝图要求：Hero 短视频竖屏感主视觉 */
    .hero-video-frame {
      position: relative;
      max-width: 380px;
      margin: 0 auto;
      background: #000;
      border-radius: 36px;
      padding: 12px;
      box-shadow: 0 25px 60px -10px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.15);
      transform: perspective(1000px) rotateY(-4deg) rotateX(2deg);
      transition: transform 0.4s ease;
    }
    .hero-video-frame:hover {
      transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
    }
    .hero-screen-inner {
      position: relative;
      border-radius: 26px;
      overflow: hidden;
      aspect-ratio: 9/18;
      background: #111;
    }
    .hero-screen-img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .hero-screen-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.7) 100%);
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      padding: 24px;
      color: #FFF;
    }
    .screen-tag {
      align-self: flex-start;
      background: rgba(255, 87, 34, 0.9);
      padding: 4px 10px;
      font-size: 11px;
      font-weight: 700;
      border-radius: 4px;
      margin-bottom: 10px;
      letter-spacing: 0.5px;
    }
    .screen-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 6px;
    }
    .screen-stat {
      font-size: 12px;
      color: #CBD5E1;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .screen-pulse {
      width: 8px;
      height: 8px;
      background: #00E676;
      border-radius: 50%;
      animation: pulse 1.6s infinite;
    }
    @keyframes pulse {
      0% { transform: scale(0.9); box-shadow: 0 0 0 0 rgba(0, 230, 118, 0.7); }
      70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(0, 230, 118, 0); }
      100% { transform: scale(0.9); box-shadow: 0 0 0 0 rgba(0, 230, 118, 0); }
    }
    /* 2. 行业痛点区 (蓝图硬性) */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .pain-card {
      background: var(--white);
      border: 1px solid var(--border);
      padding: 32px 28px;
      border-radius: var(--radius-md);
      position: relative;
      transition: var(--transition);
    }
    .pain-card:hover {
      border-color: #EF4444;
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .pain-card-head {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
    }
    .pain-icon-wrapper {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: #FEE2E2;
      color: #DC2626;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 18px;
    }
    .pain-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
    }
    .pain-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    /* 3. 技术指标看板 */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .metric-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .metric-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      opacity: 0;
      transition: var(--transition);
    }
    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .metric-card:hover::before {
      opacity: 1;
    }
    .metric-num {
      font-size: 40px;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 8px;
      letter-spacing: -1px;
    }
    .metric-num small {
      font-size: 20px;
      font-weight: 700;
      color: var(--accent-hover);
      margin-left: 2px;
    }
    .metric-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .metric-sub {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }
    /* 4. 解决方案 / 全景服务矩阵 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .service-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 36px 30px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .service-card:hover {
      border-color: rgba(255, 87, 34, 0.4);
      box-shadow: var(--shadow-lg);
      transform: translateY(-5px);
    }
    .service-card-top {
      margin-bottom: 20px;
    }
    .service-icon {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      background: var(--primary-soft);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: 900;
      margin-bottom: 20px;
    }
    .service-card h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .service-card p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.75;
      margin-bottom: 18px;
    }
    .service-features {
      border-top: 1px dashed var(--border);
      padding-top: 16px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .service-features li {
      font-size: 13px;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .service-features li::before {
      content: "✓";
      color: #10B981;
      font-weight: 800;
    }
    /* 5. 场景演示 (Product Showcase) */
    .scene-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .scene-card {
      background: var(--white);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .scene-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
    }
    .scene-thumb {
      height: 220px;
      position: relative;
      overflow: hidden;
      background: #000;
    }
    .scene-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .scene-card:hover .scene-thumb img {
      transform: scale(1.05);
    }
    .scene-badge {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(11, 15, 25, 0.85);
      color: var(--accent);
      padding: 4px 12px;
      border-radius: 4px;
      font-size: 12px;
      font-weight: 700;
      backdrop-filter: blur(4px);
    }
    .scene-body {
      padding: 26px 24px;
    }
    .scene-body h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .scene-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .scene-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: var(--secondary);
      font-weight: 600;
      border-top: 1px solid #F1F5F9;
      padding-top: 14px;
    }
    /* 6. 底层性能与风控深色对比区 */
    .deepdive-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .deepdive-box {
      background: var(--dark-card);
      border: 1px solid var(--dark-border);
      border-radius: var(--radius-md);
      padding: 36px;
    }
    .deepdive-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
      margin-top: 24px;
    }
    .deepdive-item {
      display: flex;
      gap: 16px;
      align-items: flex-start;
    }
    .deepdive-num {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      background: rgba(255, 179, 0, 0.15);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      flex-shrink: 0;
    }
    .deepdive-item h4 {
      font-size: 16px;
      color: var(--white);
      margin-bottom: 4px;
    }
    .deepdive-item p {
      font-size: 13px;
      color: #94A3B8;
      line-height: 1.6;
    }
    .pipeline-card {
      background: #070B13;
      border: 1px solid #1E293B;
      border-radius: var(--radius-md);
      padding: 28px;
      position: relative;
    }
    .pipeline-node {
      background: #111827;
      border: 1px solid #374151;
      padding: 16px 20px;
      border-radius: 8px;
      margin-bottom: 14px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 14px;
      color: #E5E7EB;
    }
    .pipeline-node:last-child {
      margin-bottom: 0;
    }
    .pipeline-node .badge-green {
      background: rgba(16, 185, 129, 0.2);
      color: #10B981;
      font-size: 12px;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 700;
    }
    /* 7. 业务迁移与上线结果对比 (Before vs After) */
    .compare-table-wrapper {
      background: var(--white);
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .compare-table th {
      padding: 20px 24px;
      background: #F1F5F9;
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      border-bottom: 1px solid var(--border);
    }
    .compare-table th.highlight-col {
      background: #FFF7ED;
      color: var(--primary);
      border-bottom: 2px solid var(--primary);
    }
    .compare-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border);
      font-size: 14px;
      color: var(--text-body);
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .compare-table td.highlight-col {
      background: #FFFAEC;
      font-weight: 600;
      color: #9A3412;
    }
    /* 8. 彩票移动端交付里程碑 */
    .timeline-steps {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 16px;
      position: relative;
    }
    .step-item {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px 18px;
      position: relative;
      text-align: center;
      transition: var(--transition);
    }
    .step-item:hover {
      border-color: var(--primary);
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
    }
    .step-no {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: var(--primary-soft);
      color: var(--primary);
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 14px;
      font-size: 15px;
    }
    .step-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .step-desc {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.6;
    }
    /* 9. 社会认同与项目故事 */
    .story-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 40px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
      box-shadow: var(--shadow-md);
    }
    .story-content h3 {
      font-size: 24px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .story-content p {
      font-size: 15px;
      color: var(--text-body);
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .story-stats {
      display: flex;
      gap: 30px;
    }
    .story-stat-item strong {
      font-size: 28px;
      font-weight: 900;
      color: var(--primary);
      display: block;
    }
    .story-stat-item span {
      font-size: 13px;
      color: var(--text-muted);
    }
    .story-img-wrap {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .story-img-wrap img {
      width: 100%;
      height: 320px;
      object-fit: cover;
    }
    /* 10. 用户口碑与评价墙 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-sm);
    }
    .review-rating {
      color: #F59E0B;
      font-size: 16px;
      margin-bottom: 14px;
    }
    .review-quote {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.75;
      margin-bottom: 20px;
      font-style: italic;
    }
    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #F1F5F9;
      padding-top: 16px;
    }
    .reviewer-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--secondary);
    }
    .reviewer-name {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }
    .reviewer-role {
      font-size: 12px;
      color: var(--text-muted);
    }
    /* 11. 技术资讯与前沿动态 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background: var(--white);
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
      overflow: hidden;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .news-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }
    .news-thumb {
      height: 190px;
      overflow: hidden;
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .news-card:hover .news-thumb img {
      transform: scale(1.05);
    }
    .news-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .news-date {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.4;
      margin-bottom: 10px;
    }
    .news-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .news-link {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    /* 12. 套餐与开发规格对比 (蓝图硬性) */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .pricing-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 36px 30px;
      position: relative;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .pricing-card.popular {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-lg);
      transform: scale(1.02);
    }
    .pricing-badge {
      position: absolute;
      top: -12px;
      right: 24px;
      background: var(--primary);
      color: var(--white);
      padding: 4px 14px;
      border-radius: 20px;
      font-size: 12px;
      font-weight: 700;
    }
    .pricing-tier {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .pricing-desc {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 24px;
      min-height: 40px;
    }
    .pricing-features {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-bottom: 30px;
      flex-grow: 1;
    }
    .pricing-features li {
      font-size: 14px;
      color: var(--text-body);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .pricing-features li::before {
      content: "•";
      color: var(--primary);
      font-size: 20px;
    }
    /* 13. 保障条 (蓝图硬性) */
    .guarantee-bar {
      background: #0F172A;
      color: var(--white);
      padding: 36px 0;
      border-top: 1px solid #1E293B;
      border-bottom: 1px solid #1E293B;
    }
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      align-items: center;
    }
    .guarantee-item {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .guarantee-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: rgba(255, 255, 255, 0.08);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      color: var(--accent);
      flex-shrink: 0;
    }
    .guarantee-item h4 {
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 4px;
    }
    .guarantee-item p {
      font-size: 12px;
      color: #94A3B8;
    }
    /* 14. 常见问题解答 FAQ */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px 28px;
      transition: var(--transition);
    }
    .faq-card:hover {
      border-color: rgba(255, 87, 34, 0.3);
    }
    .faq-question {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .faq-question::before {
      content: "Q";
      width: 24px;
      height: 24px;
      border-radius: 6px;
      background: var(--primary-soft);
      color: var(--primary);
      font-size: 13px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      flex-shrink: 0;
    }
    .faq-answer {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
      padding-left: 34px;
    }
    /* 15. 转化表单区 (蓝图硬性) */
    .conversion-section {
      background: linear-gradient(135deg, #1E1B4B 0%, #0F172A 100%);
      color: var(--white);
      padding: 90px 0;
      position: relative;
    }
    .conversion-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
    }
    .conversion-text h2 {
      font-size: 34px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 18px;
    }
    .conversion-text p {
      font-size: 15px;
      color: #CBD5E1;
      line-height: 1.8;
      margin-bottom: 28px;
    }
    .conversion-form-card {
      background: rgba(255, 255, 255, 0.05);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-lg);
      padding: 36px;
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 8px;
      color: #E2E8F0;
    }
    .form-input, .form-select {
      width: 100%;
      height: 48px;
      padding: 0 16px;
      background: rgba(15, 23, 42, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: var(--radius-sm);
      color: var(--white);
      font-size: 14px;
      outline: none;
      transition: var(--transition);
    }
    .form-input:focus, .form-select:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(255, 87, 34, 0.25);
    }
    .form-btn {
      width: 100%;
      height: 50px;
      font-size: 16px;
    }
    /* 底部浮动转化条 */
    .fixed-action-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      background: rgba(11, 15, 25, 0.94);
      backdrop-filter: blur(10px);
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      z-index: 999;
      padding: 12px 0;
      box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
    }
    .fixed-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .fixed-bar-info {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .fixed-bar-text {
      font-size: 14px;
      color: #FFF;
      font-weight: 700;
    }
    .fixed-bar-sub {
      font-size: 12px;
      color: #94A3B8;
    }
    .fixed-bar-actions {
      display: flex;
      gap: 12px;
    }
    /* 页脚 */
    .site-footer {
      background: #070A10;
      color: #94A3B8;
      padding: 80px 0 100px;
      font-size: 14px;
      border-top: 1px solid #1E293B;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 60px;
    }
    .footer-col h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--white);
      margin-bottom: 20px;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-links a:hover {
      color: var(--primary);
    }
    .footer-contact-item {
      margin-bottom: 12px;
      line-height: 1.6;
    }
    .footer-contact-item strong {
      color: #CBD5E1;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
    }
    /* 汉堡按钮 */
    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
    }
    .menu-toggle span {
      width: 24px;
      height: 2px;
      background: var(--text-main);
      transition: var(--transition);
    }
    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid, .conversion-grid, .story-card, .deepdive-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .metrics-grid, .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .services-grid, .scene-grid, .pricing-grid, .news-grid, .reviews-grid, .pain-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .timeline-steps {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .menu-toggle {
        display: flex;
      }
      .nav-menu {
        position: absolute;
        top: 74px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        align-items: flex-start;
        padding: 24px;
        gap: 18px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        display: none;
      }
      .nav-menu.open {
        display: flex;
      }
      .hero-content h1 {
        font-size: 30px;
      }
      .section-title {
        font-size: 26px;
      }
      .section {
        padding: 60px 0;
      }
      .services-grid, .scene-grid, .pricing-grid, .news-grid, .reviews-grid, .pain-grid, .metrics-grid, .guarantee-grid {
        grid-template-columns: 1fr;
      }
      .timeline-steps {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .fixed-bar-sub {
        display: none;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }