/* roulang page: index */
:root {
      --bg-main: #f8f9fa;
      --bg-card: #ffffff;
      --bg-dark: #0b0d10;
      --bg-dark-elevated: #13171f;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #94a3b8;
      --primary: #00e599;
      --primary-hover: #05f1a1;
      --primary-glow: rgba(0, 229, 153, 0.15);
      --accent-purple: #6c5ce7;
      --border-color: rgba(15, 23, 42, 0.08);
      --border-dark: rgba(255, 255, 255, 0.1);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 14px;
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
      --font-mono: "JetBrains Mono", Consolas, Menlo, Monaco, monospace;
      --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
      --shadow-md: 0 4px 20px -2px rgba(0, 0, 0, 0.05);
      --shadow-dark: 0 8px 30px rgba(0, 0, 0, 0.35);
      --max-width: 1280px;
      --transition: cubic-bezier(0.16, 1, 0.3, 1) 0.3s;
    }

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

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

    body {
      font-family: var(--font-family);
      color: var(--text-main);
      background-color: var(--bg-main);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

    button, input {
      font-family: inherit;
    }

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

    /* 顶部服务状态条与主导航 */
    .top-status-bar {
      background: #06080a;
      color: #94a3b8;
      font-size: 12px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      padding: 8px 0;
      letter-spacing: 0.02em;
    }
    .top-status-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .status-badge-live {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .dot-live {
      width: 8px;
      height: 8px;
      background-color: var(--primary);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--primary);
    }
    .status-meta {
      display: flex;
      gap: 20px;
      font-family: var(--font-mono);
    }

    .main-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .header-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 70px;
    }
    .site-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 19px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.02em;
    }
    .site-logo-icon {
      width: 32px;
      height: 32px;
      background: #0f172a;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: 900;
      font-size: 17px;
      border: 1px solid rgba(0, 229, 153, 0.4);
    }
    .nav-links {
      display: flex;
      list-style: none;
      gap: 28px;
      align-items: center;
    }
    .nav-links a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }
    .nav-links a:hover, .nav-links a.active {
      color: var(--text-main);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
    }
    .header-actions {
      display: flex;
      gap: 12px;
      align-items: center;
    }

    /* 按钮通用规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      border: 1px solid transparent;
      transition: all var(--transition);
      white-space: nowrap;
      min-height: 40px;
    }
    .btn-primary {
      background: var(--primary);
      color: #052115;
      box-shadow: 0 4px 14px rgba(0, 229, 153, 0.3);
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      transform: translateY(-1px);
    }
    .btn-outline {
      background: transparent;
      border-color: var(--border-color);
      color: var(--text-main);
    }
    .btn-outline:hover {
      background: #f1f5f9;
      border-color: #cbd5e1;
    }
    .btn-dark {
      background: #0f172a;
      color: #fff;
    }
    .btn-dark:hover {
      background: #1e293b;
    }

    /* 通用章节规范 */
    .section {
      padding: 88px 0;
      position: relative;
    }
    .section-dark {
      background-color: var(--bg-dark);
      color: #f8fafc;
    }
    .section-alt {
      background-color: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .section-header {
      margin-bottom: 52px;
      max-width: 820px;
    }
    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: #047857;
      background: rgba(0, 229, 153, 0.16);
      padding: 4px 12px;
      border-radius: 4px;
      margin-bottom: 12px;
    }
    .section-dark .section-tag {
      color: var(--primary);
      background: rgba(0, 229, 153, 0.12);
    }
    .section-title {
      font-size: 34px;
      font-weight: 700;
      line-height: 1.25;
      letter-spacing: -0.02em;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.75;
    }
    .section-dark .section-desc {
      color: #94a3b8;
    }

    /* 板块 01: Hero 矮横幅结构 (紧凑强排版) */
    .hero-banner-section {
      background-color: #f1f5f9;
      background-image: linear-gradient(to right, rgba(255, 255, 255, 0.95), rgba(241, 245, 249, 0.9)), url('/assets/images/7b9ea44113bec1a8.webp');
      background-size: cover;
      background-position: center;
      padding: 56px 0 64px 0;
      border-bottom: 1px solid var(--border-color);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.25fr 0.95fr;
      gap: 40px;
      align-items: center;
    }
    .hero-title {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.2;
      letter-spacing: -0.03em;
      color: #0f172a;
      margin-bottom: 20px;
    }
    .hero-lead {
      font-size: 16px;
      line-height: 1.8;
      color: #334155;
      margin-bottom: 28px;
    }
    .hero-action-group {
      display: flex;
      gap: 16px;
      margin-bottom: 24px;
    }
    .hero-indicators {
      display: flex;
      gap: 24px;
      border-top: 1px solid rgba(15, 23, 42, 0.1);
      padding-top: 18px;
      font-size: 13px;
      color: #475569;
    }
    .hero-indicators strong {
      color: #0f172a;
      font-family: var(--font-mono);
      font-size: 15px;
    }
    .hero-board-panel {
      background: #0b0d10;
      border-radius: var(--radius-lg);
      border: 1px solid rgba(255, 255, 255, 0.12);
      padding: 24px;
      color: #f8fafc;
      box-shadow: var(--shadow-dark);
      font-family: var(--font-mono);
      font-size: 13px;
      position: relative;
      overflow: hidden;
    }
    .panel-header {
      display: flex;
      justify-content: space-between;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      padding-bottom: 12px;
      margin-bottom: 16px;
      color: #94a3b8;
    }
    .panel-code-stream {
      line-height: 1.6;
      color: #cbd5e1;
    }
    .panel-code-stream span.key { color: var(--primary); }
    .panel-code-stream span.str { color: #f59e0b; }
    .panel-code-stream span.num { color: #38bdf8; }

    /* 板块 02: 资讯流与热榜双列 */
    .stream-rank-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr;
      gap: 36px;
    }
    .stream-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      margin-bottom: 20px;
      transition: transform var(--transition), box-shadow var(--transition);
    }
    .stream-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
    }
    .stream-meta {
      display: flex;
      gap: 12px;
      align-items: center;
      margin-bottom: 10px;
      font-size: 13px;
      color: var(--text-light);
    }
    .stream-title {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .stream-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .rank-board {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .rank-board-title {
      font-size: 18px;
      font-weight: 700;
      padding-bottom: 14px;
      border-bottom: 1px solid var(--border-color);
      margin-bottom: 16px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .rank-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      padding: 12px 0;
      border-bottom: 1px dashed rgba(15, 23, 42, 0.06);
    }
    .rank-item:last-child {
      border-bottom: none;
    }
    .rank-num {
      width: 24px;
      height: 24px;
      border-radius: 4px;
      background: #f1f5f9;
      color: #475569;
      font-weight: 700;
      font-size: 13px;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }
    .rank-item:nth-child(1) .rank-num { background: #fee2e2; color: #dc2626; }
    .rank-item:nth-child(2) .rank-num { background: #ffedd5; color: #ea580c; }
    .rank-item:nth-child(3) .rank-num { background: #fef9c3; color: #ca8a04; }
    .rank-content h4 {
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 4px;
    }
    .rank-content p {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 03: 专题条与分类矩阵 */
    .category-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }
    .category-item {
      background: #f8fafc;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      transition: all var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .category-item:hover {
      border-color: var(--primary);
      background: #ffffff;
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }
    .category-item-count {
      font-size: 12px;
      font-family: var(--font-mono);
      color: #64748b;
      margin-top: 14px;
    }

    /* 板块 04: 六维核心技术优势 */
    .grid-3x2 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .feature-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: all var(--transition);
    }
    .feature-box:hover {
      border-color: rgba(0, 229, 153, 0.4);
      box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
      transform: translateY(-3px);
    }
    .feature-tag {
      font-family: var(--font-mono);
      font-size: 11px;
      color: #047857;
      background: #ecfdf5;
      padding: 2px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 12px;
    }
    .feature-title {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .feature-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 05: 沉浸式深色全景案例区 */
    .dark-top-pipeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-bottom: 40px;
    }
    .pipe-step-card {
      background: var(--bg-dark-elevated);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 22px;
      position: relative;
    }
    .pipe-step-num {
      color: var(--primary);
      font-family: var(--font-mono);
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 8px;
    }
    .pipe-step-card h4 {
      font-size: 16px;
      color: #fff;
      margin-bottom: 8px;
    }
    .pipe-step-card p {
      font-size: 13px;
      color: #94a3b8;
      line-height: 1.6;
    }

    /* 板块 06: 业务场景图文卡片 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .scenario-card {
      background: #fff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .scenario-cover {
      height: 180px;
      width: 100%;
      object-fit: cover;
    }
    .scenario-body {
      padding: 22px;
    }
    .scenario-body h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .scenario-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 07: 标杆应用落地与成效 */
    .story-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .story-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .story-meta-badge {
      font-size: 12px;
      font-weight: 600;
      color: #2563eb;
      margin-bottom: 12px;
    }
    .story-metric-stat {
      margin-top: 18px;
      padding-top: 14px;
      border-top: 1px solid var(--border-color);
      font-family: var(--font-mono);
      font-size: 14px;
      color: #0f172a;
      font-weight: 700;
    }

    /* 板块 08: 关键性能与监控条 */
    .metrics-strip {
      background: #0f172a;
      color: #ffffff;
      padding: 56px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      text-align: center;
    }
    .metric-number {
      font-size: 42px;
      font-weight: 800;
      font-family: var(--font-mono);
      color: var(--primary);
      margin-bottom: 6px;
      line-height: 1.1;
    }
    .metric-label {
      font-size: 14px;
      color: #94a3b8;
    }

    /* 板块 09: 价格与部署模型 */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
      align-items: stretch;
    }
    .pricing-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 36px 28px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
    }
    .pricing-card.featured {
      border: 2px solid var(--primary);
      box-shadow: 0 12px 30px rgba(0, 229, 153, 0.12);
    }
    .pricing-badge {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--primary);
      color: #052115;
      font-size: 11px;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 20px;
    }
    .price-value {
      font-size: 36px;
      font-weight: 800;
      font-family: var(--font-mono);
      color: var(--text-main);
      margin: 16px 0;
    }
    .price-value span {
      font-size: 14px;
      font-weight: 400;
      color: var(--text-muted);
    }
    .price-list {
      list-style: none;
      margin: 20px 0 28px 0;
      font-size: 14px;
      color: var(--text-muted);
    }
    .price-list li {
      padding: 8px 0;
      border-bottom: 1px dashed rgba(15, 23, 42, 0.05);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* 板块 10: 行业用户口碑墙 */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
    }
    .review-stars {
      color: #f59e0b;
      margin-bottom: 12px;
      font-size: 14px;
    }
    .review-quote {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .reviewer-info {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .reviewer-meta h5 {
      font-size: 14px;
      font-weight: 700;
    }
    .reviewer-meta p {
      font-size: 12px;
      color: var(--text-light);
    }

    /* 板块 11: 媒体与生态合作 */
    .partner-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 16px;
      align-items: center;
    }
    .partner-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      height: 64px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 14px;
      color: #64748b;
      transition: all var(--transition);
    }
    .partner-item:hover {
      border-color: #94a3b8;
      color: #0f172a;
    }

    /* 板块 12: 交互式 FAQ 深度答疑手风琴 */
    .faq-wrapper {
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 14px;
      overflow: hidden;
    }
    .faq-question {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 700;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-question:hover {
      background: #f8fafc;
    }
    .faq-answer {
      padding: 0 24px 20px 24px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      border-top: 1px solid rgba(15, 23, 42, 0.04);
      padding-top: 14px;
    }

    /* 板块 13: 终极转化看板与全站页脚 */
    .footer-cta-card {
      background: #0f172a;
      border-radius: var(--radius-lg);
      padding: 56px 48px;
      color: #ffffff;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 36px;
      box-shadow: var(--shadow-dark);
      margin-bottom: 60px;
    }
    .footer-cta-content h3 {
      font-size: 30px;
      font-weight: 800;
      letter-spacing: -0.02em;
      margin-bottom: 12px;
      line-height: 1.3;
    }
    .footer-cta-content p {
      font-size: 15px;
      color: #94a3b8;
      max-width: 600px;
      line-height: 1.7;
    }
    .cta-input-group {
      display: flex;
      gap: 12px;
      min-width: 380px;
    }
    .cta-input-group input {
      flex: 1;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.2);
      background: rgba(255, 255, 255, 0.05);
      color: #fff;
      font-size: 14px;
      outline: none;
      transition: border-color var(--transition);
    }
    .cta-input-group input:focus {
      border-color: var(--primary);
    }
    .site-footer {
      background: #06080a;
      color: #94a3b8;
      padding: 64px 0 32px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 14px;
    }
    .footer-top-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-col h4 {
      color: #ffffff;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-col ul {
      list-style: none;
    }
    .footer-col ul li {
      margin-bottom: 10px;
    }
    .footer-col ul a {
      color: #94a3b8;
      transition: color var(--transition);
    }
    .footer-col ul a:hover {
      color: var(--primary);
    }
    .footer-contact-item {
      margin-bottom: 10px;
      display: flex;
      flex-direction: column;
      gap: 4px;
    }
    .footer-contact-item strong {
      color: #cbd5e1;
    }
    .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;
      font-size: 13px;
      color: #64748b;
    }
    .footer-meta-links {
      display: flex;
      gap: 20px;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid { grid-template-columns: 1fr; }
      .stream-rank-grid { grid-template-columns: 1fr; }
      .category-strip { grid-template-columns: repeat(2, 1fr); }
      .grid-3x2 { grid-template-columns: repeat(2, 1fr); }
      .dark-top-pipeline { grid-template-columns: repeat(2, 1fr); }
      .scenario-grid { grid-template-columns: 1fr; }
      .story-grid { grid-template-columns: 1fr; }
      .metrics-grid { grid-template-columns: repeat(2, 1fr); }
      .pricing-grid { grid-template-columns: 1fr; }
      .review-grid { grid-template-columns: 1fr; }
      .partner-grid { grid-template-columns: repeat(3, 1fr); }
      .footer-cta-card { flex-direction: column; text-align: center; }
      .cta-input-group { width: 100%; min-width: unset; flex-direction: column; }
      .footer-top-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .top-status-inner { flex-direction: column; gap: 6px; text-align: center; }
      .hero-title { font-size: 30px; }
      .section-title { font-size: 26px; }
      .category-strip { grid-template-columns: 1fr; }
      .grid-3x2 { grid-template-columns: 1fr; }
      .dark-top-pipeline { grid-template-columns: 1fr; }
      .partner-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-top-grid { grid-template-columns: 1fr; }
      .footer-bottom-bar { flex-direction: column; gap: 12px; text-align: center; }
    }