:root {
      --primary-color: #0b25e2;
      --accent-coral: #ff5436;
      --accent-yellow: #ffb800;
      --accent-teal: #00c49f;
      --bg-page: #f8faff;
      --bg-card: #ffffff;
      --bg-subtle: #f1f5fd;
      --text-main: #131826;
      --text-muted: #5e687e;
      --text-light: #8993a4;
      --border-color: #e2e8f5;
      --border-bright: #cbd5e1;
      --shadow-sm: 0 4px 12px rgba(11, 37, 226, 0.05);
      --shadow-md: 0 8px 24px rgba(11, 37, 226, 0.08);
      --shadow-lg: 0 16px 36px rgba(11, 37, 226, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --transition-fast: 0.25s ease;
      --transition-normal: 0.35s ease;
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 10% 10%, rgba(11, 37, 226, 0.03) 0%, transparent 40%),
        radial-gradient(circle at 90% 20%, rgba(255, 84, 54, 0.03) 0%, transparent 40%),
        radial-gradient(circle at 50% 80%, rgba(0, 196, 159, 0.03) 0%, transparent 50%);
      background-attachment: fixed;
    }

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

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

    /* 容器规范 */
    .site-container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 按钮规范 - 明艳撞色 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 26px;
      font-size: 1rem;
      font-weight: 600;
      border-radius: var(--radius-full);
      cursor: pointer;
      transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
      border: 2px solid transparent;
      gap: 8px;
      white-space: nowrap;
    }

    .btn:hover {
      transform: translateY(-2px);
    }

    .btn:active {
      transform: translateY(0);
    }

    .btn-coral {
      background-color: var(--accent-coral);
      color: #ffffff;
      box-shadow: 0 6px 18px rgba(255, 84, 54, 0.3);
    }

    .btn-coral:hover {
      background-color: #f04426;
      box-shadow: 0 8px 24px rgba(255, 84, 54, 0.4);
      color: #ffffff;
    }

    .btn-blue {
      background-color: var(--primary-color);
      color: #ffffff;
      box-shadow: 0 6px 18px rgba(11, 37, 226, 0.3);
    }

    .btn-blue:hover {
      background-color: #071cb6;
      box-shadow: 0 8px 24px rgba(11, 37, 226, 0.4);
      color: #ffffff;
    }

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

    .btn-outline:hover {
      border-color: var(--primary-color);
      color: var(--primary-color);
      box-shadow: var(--shadow-sm);
    }

    .btn-yellow {
      background-color: var(--accent-yellow);
      color: #1a1705;
      font-weight: 700;
      box-shadow: 0 6px 18px rgba(255, 184, 0, 0.35);
    }

    .btn-yellow:hover {
      background-color: #e6a600;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      border-bottom: 1px solid rgba(226, 232, 245, 0.8);
      transition: background-color var(--transition-fast);
    }

    .navbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .ai-page-logo {
      height: 38px;
      width: auto;
      object-fit: contain;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--primary-color);
      letter-spacing: -0.5px;
    }

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

    .nav-links {
      display: flex;
      list-style: none;
      align-items: center;
      gap: 0;
    }

    .nav-links li a {
      font-size: 0.93rem;
      font-weight: 600;
      color: var(--text-muted);
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      display: block;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary-color);
      background-color: rgba(11, 37, 226, 0.05);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      padding: 8px;
      cursor: pointer;
    }

    .mobile-toggle span {
      display: block;
      width: 24px;
      height: 2.5px;
      background-color: var(--text-main);
      margin: 5px 0;
      transition: var(--transition-fast);
    }

    /* 章节通用样式 */
    .section-spacing {
      padding: 80px 0;
    }

    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 52px auto;
    }

    .section-badge {
      display: inline-block;
      padding: 5px 14px;
      background: #eff3ff;
      color: var(--primary-color);
      font-size: 0.85rem;
      font-weight: 700;
      border-radius: var(--radius-full);
      margin-bottom: 14px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      border: 1px solid rgba(11, 37, 226, 0.15);
    }

    .section-header h2 {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
      line-height: 1.3;
    }

    .section-header p {
      font-size: 1.05rem;
      color: var(--text-muted);
    }

    /* 首屏 HERO 区域 - 禁图，明艳撞色纯设计 */
    .hero-section {
      padding: 80px 0 90px 0;
      position: relative;
      overflow: hidden;
      background: linear-gradient(135deg, #ffffff 0%, #f4f8ff 50%, #eff6ff 100%);
      border-bottom: 1px solid var(--border-color);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }

    .hero-content {
      position: relative;
      z-index: 2;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background-color: #fff2ed;
      color: var(--accent-coral);
      padding: 6px 16px;
      border-radius: var(--radius-full);
      font-size: 0.9rem;
      font-weight: 700;
      margin-bottom: 24px;
      border: 1px solid rgba(255, 84, 54, 0.2);
    }

    .hero-tag-pulse {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--accent-coral);
      box-shadow: 0 0 0 0 rgba(255, 84, 54, 0.7);
      animation: pulse-ring 1.8s infinite;
    }

    @keyframes pulse-ring {
      0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(255, 84, 54, 0.7);
      }
      70% {
        transform: scale(1);
        box-shadow: 0 0 0 10px rgba(255, 84, 54, 0);
      }
      100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(255, 84, 54, 0);
      }
    }

    .hero-title {
      font-size: 2.75rem;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-title .highlight-blue {
      color: var(--primary-color);
    }

    .hero-title .highlight-coral {
      color: var(--accent-coral);
    }

    .hero-desc {
      font-size: 1.125rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 34px;
      max-width: 580px;
    }

    .hero-action-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 36px;
      align-items: center;
    }

    .hero-badges-row {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      align-items: center;
      padding-top: 16px;
      border-top: 1px dashed var(--border-bright);
    }

    .hero-badge-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    .hero-badge-item svg {
      width: 18px;
      height: 18px;
      fill: var(--accent-teal);
    }

    /* 首屏右侧纯CSS科技仪表卡 */
    .hero-interactive-board {
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-lg);
      position: relative;
    }

    .board-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-bottom: 18px;
      border-bottom: 1px solid var(--border-color);
      margin-bottom: 22px;
    }

    .board-status {
      display: flex;
      align-items: center;
      gap: 8px;
      font-weight: 700;
      color: var(--primary-color);
      font-size: 0.95rem;
    }

    .board-status-dot {
      width: 10px;
      height: 10px;
      background-color: var(--accent-teal);
      border-radius: 50%;
    }

    .board-badge {
      background: #fff8e6;
      color: #925f00;
      font-size: 0.8rem;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      border: 1px solid #ffe199;
    }

    .board-models-cloud {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-bottom: 22px;
    }

    .model-chip {
      background: var(--bg-subtle);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 10px 12px;
      text-align: center;
      transition: all var(--transition-fast);
    }

    .model-chip:hover {
      background: #ffffff;
      border-color: var(--primary-color);
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }

    .model-chip-name {
      font-weight: 700;
      font-size: 0.9rem;
      color: var(--text-main);
    }

    .model-chip-desc {
      font-size: 0.75rem;
      color: var(--text-light);
      margin-top: 2px;
    }

    .board-stat-box {
      background: linear-gradient(135deg, rgba(11, 37, 226, 0.04) 0%, rgba(255, 84, 54, 0.04) 100%);
      border-radius: var(--radius-md);
      padding: 18px;
      border: 1px dashed rgba(11, 37, 226, 0.2);
    }

    .board-stat-title {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-muted);
      margin-bottom: 10px;
      display: flex;
      justify-content: space-between;
    }

    .board-meter {
      height: 8px;
      background: #e2e8f5;
      border-radius: 4px;
      overflow: hidden;
      margin-bottom: 8px;
    }

    .board-meter-bar {
      width: 88%;
      height: 100%;
      background: linear-gradient(90deg, var(--primary-color), var(--accent-coral));
      border-radius: 4px;
    }

    .board-stat-meta {
      display: flex;
      justify-content: space-between;
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 数据指标条 */
    .metric-strip {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 36px 0;
    }

    .metric-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }

    .metric-item {
      padding: 0 16px;
      border-right: 1px solid var(--border-color);
    }

    .metric-item:last-child {
      border-right: none;
    }

    .metric-num {
      font-size: 2.4rem;
      font-weight: 900;
      color: var(--primary-color);
      line-height: 1.1;
      margin-bottom: 6px;
      font-family: inherit;
    }

    .metric-num span {
      color: var(--accent-coral);
    }

    .metric-label {
      font-size: 0.95rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 平台介绍板块 */
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .intro-content h3 {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 18px;
      line-height: 1.35;
    }

    .intro-content p {
      font-size: 1.05rem;
      color: var(--text-muted);
      margin-bottom: 22px;
      line-height: 1.75;
    }

    .intro-feature-list {
      list-style: none;
      margin-bottom: 28px;
    }

    .intro-feature-list li {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      margin-bottom: 14px;
      font-size: 0.98rem;
      color: var(--text-main);
    }

    .check-icon {
      flex-shrink: 0;
      width: 20px;
      height: 20px;
      background-color: rgba(0, 196, 159, 0.15);
      color: var(--accent-teal);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      margin-top: 2px;
    }

    .intro-visual-panel {
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-md);
      position: relative;
    }

    .intro-card-stack {
      display: grid;
      gap: 16px;
    }

    .intro-subcard {
      background: var(--bg-subtle);
      border-radius: var(--radius-md);
      padding: 20px;
      border-left: 4px solid var(--primary-color);
      transition: transform var(--transition-fast);
    }

    .intro-subcard:hover {
      transform: translateX(6px);
      background: #ffffff;
      box-shadow: var(--shadow-sm);
    }

    .intro-subcard.coral-accent {
      border-left-color: var(--accent-coral);
    }

    .intro-subcard.yellow-accent {
      border-left-color: var(--accent-yellow);
    }

    .intro-subcard h4 {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .intro-subcard p {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 0;
    }

    /* 场景矩阵卡片流 - AIGC服务 */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      transition: all var(--transition-normal);
      display: flex;
      flex-direction: column;
      position: relative;
      overflow: hidden;
    }

    .service-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: linear-gradient(90deg, var(--primary-color), var(--accent-teal));
      opacity: 0;
      transition: opacity var(--transition-fast);
    }

    .service-card:hover {
      transform: translateY(-6px);
      border-color: rgba(11, 37, 226, 0.3);
      box-shadow: var(--shadow-md);
    }

    .service-card:hover::before {
      opacity: 1;
    }

    .service-icon-box {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-md);
      background: #eff3ff;
      color: var(--primary-color);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
    }

    .service-card:nth-child(2n) .service-icon-box {
      background: #fff2ed;
      color: var(--accent-coral);
    }

    .service-card:nth-child(3n) .service-icon-box {
      background: #e6faf5;
      color: var(--accent-teal);
    }

    .service-card:nth-child(4n) .service-icon-box {
      background: #fff9e6;
      color: #b38600;
    }

    .service-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .service-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 18px;
    }

    .service-tag-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .service-tag {
      font-size: 0.75rem;
      background: var(--bg-subtle);
      color: var(--text-muted);
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 500;
    }

    /* 一站式制作流水线 */
    .flow-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .flow-step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .step-number {
      font-size: 2.2rem;
      font-weight: 900;
      color: rgba(11, 37, 226, 0.15);
      position: absolute;
      top: 16px;
      right: 20px;
      line-height: 1;
    }

    .flow-step-card h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .flow-step-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 对比评测专属板块 */
    .review-summary-card {
      background: linear-gradient(135deg, #0b25e2 0%, #1a3ae8 60%, #ff5436 120%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 36px 40px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 40px;
      box-shadow: var(--shadow-lg);
    }

    .rating-group {
      display: flex;
      align-items: center;
      gap: 24px;
    }

    .rating-score {
      font-size: 3.8rem;
      font-weight: 900;
      line-height: 1;
      color: #ffffff;
    }

    .rating-meta h3 {
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 6px;
    }

    .stars-row {
      color: var(--accent-yellow);
      font-size: 1.3rem;
      letter-spacing: 2px;
    }

    .review-action {
      text-align: right;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 720px;
    }

    .comparison-table th, 
    .comparison-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-color);
    }

    .comparison-table th {
      background-color: var(--bg-subtle);
      font-weight: 700;
      color: var(--text-main);
      font-size: 0.95rem;
    }

    .comparison-table tr:last-child td {
      border-bottom: none;
    }

    .highlight-col {
      background-color: rgba(11, 37, 226, 0.03);
      font-weight: 700;
      color: var(--primary-color);
    }

    .status-check {
      color: var(--accent-teal);
      font-weight: 800;
    }

    .status-cross {
      color: var(--text-light);
    }

    /* 案例中心 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all var(--transition-normal);
      display: flex;
      flex-direction: column;
    }

    .case-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
    }

    .case-media-wrap {
      background: #eaeffa;
      position: relative;
      aspect-ratio: 16 / 9;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }

    .case-media-wrap.square-ratio {
      aspect-ratio: 1 / 1;
    }

    .case-media-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform var(--transition-normal);
    }

    .case-card:hover .case-media-wrap img {
      transform: scale(1.05);
    }

    .case-badge-pill {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(19, 24, 38, 0.85);
      color: #ffffff;
      font-size: 0.75rem;
      padding: 4px 10px;
      border-radius: var(--radius-full);
      font-weight: 600;
      backdrop-filter: blur(4px);
    }

    .case-body {
      padding: 22px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .case-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .case-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .case-stats-tag {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
      font-size: 0.85rem;
      color: var(--primary-color);
      font-weight: 600;
    }

    /* Token 比价专区 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .token-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      position: relative;
      text-align: center;
      box-shadow: var(--shadow-sm);
    }

    .token-card.featured {
      border: 2px solid var(--primary-color);
      box-shadow: var(--shadow-md);
    }

    .popular-tag {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--accent-coral);
      color: #ffffff;
      font-size: 0.75rem;
      padding: 3px 12px;
      border-radius: var(--radius-full);
      font-weight: 700;
    }

    .token-name {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .token-price {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary-color);
      margin: 16px 0;
    }

    .token-price span {
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text-muted);
    }

    .token-features-list {
      list-style: none;
      text-align: left;
      margin: 20px 0 26px 0;
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .token-features-list li {
      padding: 6px 0;
      border-bottom: 1px dashed var(--border-color);
    }

    .token-features-list li:last-child {
      border-bottom: none;
    }

    /* 客户真实评价 6 条 */
    .reviews-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: 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-user-info {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
    }

    .user-avatar-initial {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-color);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
    }

    .user-name-title h4 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .user-name-title p {
      font-size: 0.8rem;
      color: var(--text-light);
    }

    .review-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      font-style: normal;
    }

    .review-stars {
      color: var(--accent-yellow);
      margin-top: 14px;
      font-size: 0.9rem;
    }

    /* FAQ 手风琴 */
    .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: 14px;
      overflow: hidden;
      transition: border-color var(--transition-fast);
    }

    .faq-item.active {
      border-color: var(--primary-color);
    }

    .faq-question {
      width: 100%;
      padding: 20px 24px;
      text-align: left;
      background: none;
      border: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .faq-icon {
      font-size: 1.3rem;
      color: var(--primary-color);
      transition: transform var(--transition-fast);
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out, padding 0.3s ease;
      background: var(--bg-subtle);
      padding: 0 24px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 16px 24px 22px 24px;
    }

    /* 需求表单与联系我们板块 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 48px;
      box-shadow: var(--shadow-md);
    }

    .form-title h3 {
      font-size: 1.6rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .form-title p {
      font-size: 0.95rem;
      color: var(--text-muted);
      margin-bottom: 24px;
    }

    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
    }

    .form-full {
      grid-column: span 2;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .form-group label {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .form-input, 
    .form-select, 
    .form-textarea {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-bright);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      background-color: #ffffff;
      color: var(--text-main);
      outline: none;
      transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
      font-family: inherit;
    }

    .form-input:focus, 
    .form-select:focus, 
    .form-textarea:focus {
      border-color: var(--primary-color);
      box-shadow: 0 0 0 3px rgba(11, 37, 226, 0.12);
    }

    .form-textarea {
      resize: vertical;
      min-height: 100px;
    }

    .contact-info-panel {
      background: var(--bg-subtle);
      border-radius: var(--radius-md);
      padding: 32px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .contact-item-box {
      margin-bottom: 24px;
    }

    .contact-item-box h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .contact-detail-line {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.95rem;
      color: var(--text-muted);
      margin-bottom: 10px;
    }

    .contact-qrcode-wrap {
      display: flex;
      align-items: center;
      gap: 16px;
      background: #ffffff;
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }

    .contact-qrcode-wrap img {
      width: 88px;
      height: 88px;
      object-fit: contain;
    }

    .qrcode-text h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .qrcode-text p {
      font-size: 0.8rem;
      color: var(--text-light);
      margin-top: 4px;
    }

    /* 行业资讯与最新文章 */
    .articles-section {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
    }

    .articles-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 18px;
      margin-top: 24px;
    }

    .article-pill-card {
      background: var(--bg-subtle);
      padding: 16px 20px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      justify-content: space-between;
      transition: all var(--transition-fast);
    }

    .article-pill-card:hover {
      background: #ffffff;
      border-color: var(--primary-color);
      transform: translateX(4px);
    }

    .article-pill-card span {
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .article-arrow {
      color: var(--primary-color);
      font-weight: bold;
    }

    /* 底部专属 */
    .site-footer {
      background-color: #0d121f;
      color: #cbd5e1;
      padding: 64px 0 32px 0;
      border-top: 1px solid #1e293b;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 48px;
    }

    .footer-brand h4 {
      font-size: 1.35rem;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 14px;
    }

    .footer-brand p {
      font-size: 0.9rem;
      color: #94a3b8;
      line-height: 1.7;
      margin-bottom: 18px;
    }

    .footer-col h5 {
      font-size: 1rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 18px;
      position: relative;
      padding-bottom: 8px;
    }

    .footer-col h5::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 24px;
      height: 2px;
      background: var(--accent-coral);
    }

    .footer-links {
      list-style: none;
    }

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

    .footer-links li a {
      font-size: 0.88rem;
      color: #94a3b8;
      transition: color var(--transition-fast);
    }

    .footer-links li a:hover {
      color: #ffffff;
    }

    .friendship-links {
      padding: 24px 0;
      border-top: 1px solid #1e293b;
      border-bottom: 1px solid #1e293b;
      margin-bottom: 30px;
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
    }

    .friendship-title {
      font-size: 0.88rem;
      font-weight: 700;
      color: #ffffff;
    }

    .friendship-links a {
      font-size: 0.85rem;
      color: #94a3b8;
      margin-right: 12px;
    }

    .friendship-links a:hover {
      color: var(--accent-yellow);
    }

    .copyright-bar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      color: #64748b;
      flex-wrap: wrap;
      gap: 12px;
    }

    /* 悬浮客服面板 */
    .floating-tool {
      position: fixed;
      right: 24px;
      bottom: 36px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .floating-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--text-main);
      transition: all var(--transition-fast);
    }

    .floating-btn:hover {
      background: var(--primary-color);
      color: #ffffff;
      transform: scale(1.08);
    }

    .floating-btn.back-top {
      display: none;
    }

    /* 响应式媒体查询 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .intro-grid {
        grid-template-columns: 1fr;
      }
      .flow-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .case-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-wrapper {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .site-header {
        position: relative;
      }
      .nav-menu {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        padding: 20px 0;
      }
      .nav-menu.show {
        display: block;
      }
      .nav-links {
        flex-direction: column;
        align-items: stretch;
      }
      .nav-links li a {
        padding: 12px 24px;
      }
      .mobile-toggle {
        display: block;
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .metric-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metric-item {
        border-right: none;
        margin-bottom: 16px;
      }
      .flow-grid {
        grid-template-columns: 1fr;
      }
      .case-grid {
        grid-template-columns: 1fr;
      }
      .token-grid {
        grid-template-columns: 1fr;
      }
      .reviews-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .form-full {
        grid-column: span 1;
      }
      .review-summary-card {
        flex-direction: column;
        text-align: center;
        gap: 20px;
      }
      .rating-group {
        flex-direction: column;
        gap: 10px;
      }
      .review-action {
        text-align: center;
      }
    }