:root {
      --primary: #4f46e5;
      --primary-hover: #4338ca;
      --primary-light: #eef2ff;
      --accent: #ec4899;
      --accent-gradient: linear-gradient(135deg, #6366f1 0%, #ec4899 50%, #f59e0b 100%);
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --bg-page: #f8fafc;
      --bg-card: #ffffff;
      --bg-subtle: #f1f5f9;
      --border-color: #e2e8f0;
      --border-hover: #cbd5e1;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
      --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -1px rgba(0,0,0,0.04);
      --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 10px 10px -5px rgba(0,0,0,0.03);
      --radius: 12px;
      --radius-lg: 18px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-tap-highlight-color: transparent;
    }

    html {
      scroll-behavior: smooth;
      font-size: 16px;
      background-color: var(--bg-page);
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
      color: var(--text-main);
      background: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.04) 0%, transparent 40%),
                  radial-gradient(circle at 90% 80%, rgba(236, 72, 153, 0.04) 0%, transparent 40%),
                  #f8fafc;
      line-height: 1.6;
      min-height: 100vh;
      overflow-x: hidden;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.2s ease;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0,0,0,0.02);
    }

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

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

    .ai-page-logo {
      height: 38px;
      width: auto;
      display: block;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      background: linear-gradient(135deg, #4f46e5, #ec4899);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: -0.5px;
    }

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

    .nav-links li a {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted);
      padding: 8px 14px;
      border-radius: 6px;
      display: inline-block;
    }

    .nav-links li a:hover {
      color: var(--primary);
      background-color: var(--primary-light);
    }

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

    .btn-nav-primary {
      background: var(--primary);
      color: #ffffff !important;
      padding: 8px 18px;
      border-radius: 8px;
      font-size: 0.9rem;
      font-weight: 600;
      box-shadow: 0 2px 6px rgba(79, 70, 229, 0.25);
    }

    .btn-nav-primary:hover {
      background: var(--primary-hover);
      transform: translateY(-1px);
    }

    .mobile-menu-btn {
      display: none;
      background: transparent;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 8px;
      cursor: pointer;
      color: var(--text-main);
    }

    /* 移动端菜单抽屉 */
    .mobile-drawer {
      display: none;
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      padding: 16px 20px;
    }

    .mobile-drawer.active {
      display: block;
    }

    .mobile-nav-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .mobile-nav-list a {
      display: block;
      padding: 10px 12px;
      font-weight: 500;
      color: var(--text-muted);
      border-radius: 6px;
    }

    .mobile-nav-list a:hover {
      background-color: var(--primary-light);
      color: var(--primary);
    }

    /* 首屏 Hero 区域（纯代码与CSS渐变构建，禁止图片） */
    .hero-section {
      padding: 70px 0 60px;
      position: relative;
      overflow: hidden;
      background: linear-gradient(180deg, rgba(238, 242, 255, 0.6) 0%, rgba(255, 255, 255, 0) 100%);
    }

    .hero-wrapper {
      text-align: center;
      max-width: 920px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: #ffffff;
      border: 1px solid #c7d2fe;
      border-radius: 9999px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--primary);
      box-shadow: 0 2px 8px rgba(99, 102, 241, 0.1);
      margin-bottom: 24px;
    }

    .hero-badge-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #10b981;
      display: inline-block;
      box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
    }

    .hero-title {
      font-size: 2.75rem;
      line-height: 1.25;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -0.8px;
    }

    .hero-title-highlight {
      background: linear-gradient(135deg, #4f46e5 20%, #ec4899 80%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 36px;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-btn-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .btn-hero-main {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: linear-gradient(135deg, #4f46e5, #ec4899);
      color: #ffffff !important;
      font-size: 1.05rem;
      font-weight: 700;
      padding: 14px 34px;
      border-radius: 12px;
      box-shadow: 0 8px 20px rgba(79, 70, 229, 0.35);
      transition: all 0.3s ease;
    }

    .btn-hero-main:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 24px rgba(79, 70, 229, 0.45);
    }

    .btn-hero-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: #ffffff;
      color: var(--text-main);
      border: 1px solid var(--border-color);
      font-size: 1.05rem;
      font-weight: 600;
      padding: 14px 28px;
      border-radius: 12px;
      box-shadow: var(--shadow-sm);
    }

    .btn-hero-secondary:hover {
      background: var(--bg-subtle);
      border-color: var(--border-hover);
      color: var(--primary);
    }

    /* Hero 数据看板卡片 (纯CSS无图) */
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      text-align: left;
    }

    .hero-stat-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 20px;
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
      transition: transform 0.2s ease, border-color 0.2s ease;
    }

    .hero-stat-card:hover {
      transform: translateY(-3px);
      border-color: #a5b4fc;
    }

    .stat-number {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
      display: flex;
      align-items: baseline;
      gap: 4px;
    }

    .stat-label {
      font-size: 0.85rem;
      color: var(--text-light);
      font-weight: 500;
    }

    /* 模型徽章轮播/聚合条 */
    .model-ticker-section {
      padding: 20px 0 40px;
    }

    .model-ticker-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px 24px;
      box-shadow: var(--shadow-sm);
    }

    .model-ticker-title {
      font-size: 0.85rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.8px;
      color: var(--text-light);
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .model-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .model-pill {
      font-size: 0.82rem;
      font-weight: 600;
      padding: 6px 12px;
      background: var(--bg-subtle);
      color: var(--text-main);
      border: 1px solid #cbd5e1;
      border-radius: 8px;
      transition: all 0.2s ease;
    }

    .model-pill:hover {
      background: #e0e7ff;
      border-color: #818cf8;
      color: var(--primary);
    }

    /* 通用版块标题 */
    .section-wrap {
      padding: 64px 0;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 44px;
    }

    .section-eyebrow {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 700;
      letter-spacing: 1.5px;
      text-transform: uppercase;
      color: var(--primary);
      background: var(--primary-light);
      padding: 4px 12px;
      border-radius: 9999px;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }

    .section-subtitle {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 平台介绍与关于我们 */
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: center;
    }

    .intro-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

    .intro-card h3 {
      font-size: 1.45rem;
      font-weight: 800;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .intro-card p {
      color: var(--text-muted);
      font-size: 0.96rem;
      margin-bottom: 20px;
      line-height: 1.7;
    }

    .intro-feature-list {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .intro-feature-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .intro-feature-item::before {
      content: "✓";
      color: #10b981;
      font-weight: 800;
    }

    /* 媒体视觉卡片 */
    .media-card-wrap {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      background: #ffffff;
    }

    .media-card-wrap img {
      width: 100%;
      height: auto;
      display: block;
    }

    .media-card-body {
      padding: 24px;
    }

    /* AIGC 服务矩阵卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.25s ease;
    }

    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-xl);
      border-color: #818cf8;
    }

    .service-icon-box {
      width: 46px;
      height: 46px;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.3rem;
      margin-bottom: 18px;
      background: var(--primary-light);
      color: var(--primary);
    }

    .service-card h3 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

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

    .service-tag {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 600;
      padding: 3px 8px;
      border-radius: 4px;
      background: var(--bg-subtle);
      color: var(--text-light);
      align-self: flex-start;
    }

    /* 一站式创作场景展区 */
    .feature-showcase-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .showcase-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      gap: 20px;
    }

    .showcase-badge {
      width: 42px;
      height: 42px;
      flex-shrink: 0;
      border-radius: 8px;
      background: linear-gradient(135deg, #4f46e5, #ec4899);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 0.95rem;
    }

    .showcase-content h4 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .showcase-content p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 对比评测表格与卡片 */
    .eval-highlight-box {
      background: #ffffff;
      border: 2px solid #818cf8;
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-xl);
      margin-bottom: 32px;
    }

    .eval-header-flex {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      padding-bottom: 24px;
      border-bottom: 1px solid var(--border-color);
      margin-bottom: 24px;
    }

    .eval-score-badge {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .score-circle {
      width: 68px;
      height: 68px;
      border-radius: 50%;
      background: linear-gradient(135deg, #4f46e5, #ec4899);
      color: #ffffff;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      line-height: 1;
    }

    .score-circle span {
      font-size: 1.4rem;
    }

    .score-circle small {
      font-size: 0.65rem;
      opacity: 0.9;
    }

    .score-text h4 {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .score-stars {
      color: #f59e0b;
      font-size: 1.1rem;
    }

    .score-text p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .eval-table-wrap {
      overflow-x: auto;
    }

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.92rem;
    }

    .eval-table th, .eval-table td {
      padding: 14px 16px;
      border-bottom: 1px solid var(--border-color);
    }

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

    .eval-table tr:hover td {
      background: rgba(238, 242, 255, 0.4);
    }

    .col-highlight {
      color: var(--primary);
      font-weight: 700;
      background: rgba(238, 242, 255, 0.5);
    }

    /* Token 比价专区 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

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

    .token-card-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 14px;
    }

    .token-model-name {
      font-weight: 800;
      font-size: 1.05rem;
    }

    .token-discount-tag {
      background: #fee2e2;
      color: #dc2626;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 9999px;
    }

    .token-price-row {
      display: flex;
      align-items: baseline;
      gap: 8px;
      margin-bottom: 12px;
    }

    .token-current-price {
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--primary);
    }

    .token-origin-price {
      font-size: 0.85rem;
      color: var(--text-light);
      text-decoration: line-through;
    }

    .token-feature-list {
      list-style: none;
      font-size: 0.85rem;
      color: var(--text-muted);
      border-top: 1px dashed var(--border-color);
      padding-top: 12px;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    /* 标准流程时间线 */
    .process-steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

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

    .step-badge {
      font-size: 0.8rem;
      font-weight: 800;
      color: var(--primary);
      background: var(--primary-light);
      display: inline-block;
      padding: 4px 10px;
      border-radius: 6px;
      margin-bottom: 12px;
    }

    .process-step-card h4 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .process-step-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 服务网络与百科图文 */
    .network-encyclopedia-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
    }

    .network-card, .encyclopedia-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-sm);
    }

    .network-card h3, .encyclopedia-card h3 {
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 14px;
      color: var(--text-main);
    }

    .network-nodes {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 16px;
    }

    .node-item {
      padding: 6px 14px;
      background: var(--bg-subtle);
      border-radius: 8px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .encyclopedia-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-top: 16px;
    }

    .encyclopedia-item {
      padding: 12px 16px;
      background: var(--bg-subtle);
      border-radius: 8px;
      font-size: 0.9rem;
    }

    .encyclopedia-item strong {
      color: var(--primary);
      display: block;
      margin-bottom: 4px;
    }

    /* 案例中心 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .case-img-holder {
      background: var(--bg-subtle);
      width: 100%;
      aspect-ratio: 16/9;
      overflow: hidden;
    }

    .case-img-holder img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }

    .case-card:hover .case-img-holder img {
      transform: scale(1.03);
    }

    .case-body {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .case-body h4 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .case-body p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.5;
      margin-bottom: 12px;
    }

    .case-meta {
      font-size: 0.8rem;
      color: var(--primary);
      font-weight: 600;
    }

    /* 用户真实评价 (6条) */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .testimonial-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .testimonial-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .user-avatar-initial {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #4f46e5, #ec4899);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
    }

    .user-meta h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }

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

    .testimonial-text {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      font-style: normal;
    }

    /* 加盟代理板块 */
    .agent-box {
      background: linear-gradient(135deg, #4f46e5 0%, #3730a3 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 44px 36px;
      box-shadow: var(--shadow-xl);
    }

    .agent-content-wrap {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 32px;
      align-items: center;
    }

    .agent-text h3 {
      font-size: 1.85rem;
      font-weight: 800;
      margin-bottom: 14px;
      color: #ffffff;
    }

    .agent-text p {
      font-size: 1rem;
      line-height: 1.7;
      color: #e0e7ff;
      margin-bottom: 24px;
    }

    .agent-perks {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }

    .perk-item {
      background: rgba(255, 255, 255, 0.1);
      padding: 12px 16px;
      border-radius: 8px;
      font-size: 0.88rem;
      font-weight: 600;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }

    .agent-action-box {
      background: #ffffff;
      border-radius: var(--radius);
      padding: 28px;
      text-align: center;
      color: var(--text-main);
      box-shadow: var(--shadow-md);
    }

    .agent-action-box h4 {
      font-size: 1.2rem;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .agent-action-box p {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-bottom: 18px;
    }

    .btn-agent-apply {
      display: block;
      width: 100%;
      background: var(--primary);
      color: #ffffff !important;
      padding: 12px;
      border-radius: 8px;
      font-weight: 700;
      font-size: 0.95rem;
      text-align: center;
    }

    .btn-agent-apply:hover {
      background: var(--primary-hover);
    }

    /* 需求匹配与联系我们表单 */
    .form-contact-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 32px;
    }

    .form-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

    .form-box h3 {
      font-size: 1.35rem;
      font-weight: 800;
      margin-bottom: 20px;
    }

    .form-row {
      margin-bottom: 18px;
    }

    .form-row label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 0.95rem;
      color: var(--text-main);
      background: #f8fafc;
      outline: none;
      transition: border-color 0.2s;
    }

    .form-control:focus {
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 110px;
    }

    .btn-submit-form {
      width: 100%;
      padding: 14px;
      background: linear-gradient(135deg, #4f46e5, #ec4899);
      color: #ffffff;
      border: none;
      border-radius: 8px;
      font-size: 1rem;
      font-weight: 700;
      cursor: pointer;
      transition: opacity 0.2s;
    }

    .btn-submit-form:hover {
      opacity: 0.95;
    }

    .contact-info-panel {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .contact-info-panel h3 {
      font-size: 1.35rem;
      font-weight: 800;
      margin-bottom: 18px;
    }

    .contact-details-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-bottom: 24px;
    }

    .contact-detail-item {
      font-size: 0.92rem;
      color: var(--text-muted);
    }

    .contact-detail-item strong {
      color: var(--text-main);
      display: inline-block;
      width: 90px;
    }

    .qr-holder-box {
      text-align: center;
      background: var(--bg-subtle);
      padding: 20px;
      border-radius: var(--radius);
      border: 1px dashed var(--border-color);
    }

    .qr-holder-box img {
      width: 130px;
      height: 130px;
      object-fit: contain;
      border-radius: 8px;
      margin-bottom: 8px;
      display: inline-block;
    }

    .qr-holder-box p {
      font-size: 0.82rem;
      color: var(--text-light);
      font-weight: 600;
    }

    /* FAQ 手风琴折叠面板 (>=10个) */
    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .faq-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      width: 100%;
      text-align: left;
      padding: 18px 20px;
      background: #ffffff;
      border: none;
      outline: none;
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      gap: 12px;
    }

    .faq-question:hover {
      background: var(--bg-subtle);
      color: var(--primary);
    }

    .faq-icon {
      font-size: 1.2rem;
      font-weight: 400;
      transition: transform 0.2s;
    }

    .faq-answer {
      display: none;
      padding: 0 20px 18px;
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      border-top: 1px solid #f1f5f9;
      background: #ffffff;
    }

    .faq-card.open .faq-answer {
      display: block;
    }

    .faq-card.open .faq-icon {
      transform: rotate(45deg);
    }

    /* 行业资讯与最新文章 */
    .article-links-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-sm);
    }

    .article-token-display {
      margin-bottom: 20px;
      padding-bottom: 16px;
      border-bottom: 1px solid var(--border-color);
    }

    .article-url-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      list-style: none;
    }

    .article-url-list a {
      font-size: 0.88rem;
      color: var(--primary);
      background: var(--primary-light);
      padding: 6px 14px;
      border-radius: 6px;
      font-weight: 500;
    }

    .article-url-list a:hover {
      background: var(--primary);
      color: #ffffff;
    }

    /* 友情链接 */
    .friendly-links-wrap {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 24px 0;
    }

    .friendly-links-inner {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.88rem;
      color: var(--text-light);
    }

    .friendly-links-inner strong {
      color: var(--text-main);
    }

    .friendly-links-inner a {
      color: var(--text-muted);
      text-decoration: none;
    }

    .friendly-links-inner a:hover {
      color: var(--primary);
      text-decoration: underline;
    }

    /* 统一页脚 */
    .site-footer {
      background: #0f172a;
      color: #cbd5e1;
      padding: 50px 0 30px;
      font-size: 0.88rem;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 32px;
      padding-bottom: 36px;
      border-bottom: 1px solid #334155;
      margin-bottom: 28px;
    }

    .footer-col h4 {
      color: #ffffff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .footer-col p {
      line-height: 1.7;
      color: #94a3b8;
      font-size: 0.88rem;
    }

    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

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

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

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 14px;
      color: #64748b;
      font-size: 0.82rem;
    }

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

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

    /* 悬浮客服挂件 */
    .float-service-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      color: var(--primary);
      box-shadow: 0 4px 14px rgba(0,0,0,0.15);
      border: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      position: relative;
      transition: all 0.2s;
    }

    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: scale(1.05);
    }

    .float-qr-pop {
      display: none;
      position: absolute;
      right: 56px;
      bottom: 0;
      background: #ffffff;
      padding: 14px;
      border-radius: 12px;
      box-shadow: 0 10px 25px rgba(0,0,0,0.18);
      border: 1px solid var(--border-color);
      width: 160px;
      text-align: center;
      color: var(--text-main);
    }

    .float-qr-pop img {
      width: 100%;
      height: auto;
      border-radius: 6px;
      margin-bottom: 6px;
    }

    .float-qr-pop span {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--text-muted);
    }

    .float-btn:hover .float-qr-pop {
      display: block;
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .services-grid, .token-grid, .case-grid, .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links, .btn-nav-primary {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-title {
        font-size: 1.95rem;
      }
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .intro-grid, .feature-showcase-grid, .services-grid, .token-grid, 
      .network-encyclopedia-grid, .case-grid, .testimonials-grid, 
      .agent-content-wrap, .form-contact-grid, .faq-grid {
        grid-template-columns: 1fr;
      }
      .process-steps-grid {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }