:root {
      --primary-color: #4f46e5;
      --primary-hover: #4338ca;
      --accent-color: #ec4899;
      --accent-cyan: #06b6d4;
      --accent-orange: #f97316;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --bg-alt: #f1f5f9;
      --text-main: #0f172a;
      --text-muted: #334155;
      --text-light: #64748b;
      --border-color: #e2e8f0;
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 10px 30px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 20px 45px rgba(15, 23, 42, 0.12);
      --site-width: 1200px;
    }

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

    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(--bg-main);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

    /* 统一主容器规范 */
    .site-container {
      width: 100%;
      max-width: var(--site-width);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 通用版块标题 */
    .section-header {
      text-align: center;
      margin-bottom: 48px;
    }

    .section-badge {
      display: inline-block;
      padding: 6px 16px;
      background: linear-gradient(135deg, rgba(79, 70, 229, 0.08), rgba(236, 72, 153, 0.1));
      color: var(--primary-color);
      border: 1px solid rgba(79, 70, 229, 0.2);
      border-radius: 9999px;
      font-size: 0.875rem;
      font-weight: 700;
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.3;
    }

    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      max-width: 760px;
      margin: 0 auto;
    }

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

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

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

    .ai-page-logo {
      height: 40px;
      width: auto;
      display: block;
      object-fit: contain;
    }

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

    .brand-text span {
      background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    /* 核心规定：.nav-links 的 gap 属性设置为 0 */
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0;
    }

    .nav-links li {
      margin: 0;
      padding: 0;
    }

    .nav-links a {
      display: block;
      padding: 10px 14px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-muted);
      border-radius: var(--radius-sm);
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary-color);
      background: rgba(79, 70, 229, 0.05);
    }

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

    .btn-portal {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      background: linear-gradient(135deg, #ff4b2b, #ff416c);
      color: #ffffff;
      font-weight: 700;
      font-size: 0.95rem;
      border-radius: 9999px;
      box-shadow: 0 4px 15px rgba(255, 65, 108, 0.35);
      transition: all 0.3s ease;
      border: none;
    }

    .btn-portal:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 65, 108, 0.45);
      color: #ffffff;
    }

    .mobile-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 8px;
      cursor: pointer;
    }

    .mobile-toggle svg {
      width: 24px;
      height: 24px;
      fill: var(--text-main);
      display: block;
    }

    /* 首屏 Hero 区域：绝对禁止图片与图片背景 */
    .hero-section {
      position: relative;
      padding: 80px 0 60px;
      background: radial-gradient(circle at 80% 20%, rgba(236, 72, 153, 0.08) 0%, transparent 40%),
                  radial-gradient(circle at 10% 60%, rgba(79, 70, 229, 0.08) 0%, transparent 40%),
                  linear-gradient(180deg, #ffffff 0%, var(--bg-main) 100%);
      border-bottom: 1px solid var(--border-color);
    }

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

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: #ffffff;
      border: 1px solid #cbd5e1;
      border-radius: 9999px;
      font-size: 0.875rem;
      font-weight: 700;
      color: var(--primary-color);
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }

    .hero-tag-pulse {
      width: 8px;
      height: 8px;
      background-color: #10b981;
      border-radius: 50%;
      box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.2);
    }

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

    .hero-subtitle {
      font-size: 1.18rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 36px;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }

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

    .btn-hero-primary {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 16px 36px;
      background: linear-gradient(135deg, #e11d48, #f43f5e, #fb7185);
      color: #ffffff;
      font-size: 1.125rem;
      font-weight: 800;
      border-radius: 9999px;
      box-shadow: 0 8px 25px rgba(225, 29, 72, 0.35);
      transition: all 0.3s ease;
    }

    .btn-hero-primary:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 0 12px 30px rgba(225, 29, 72, 0.45);
      color: #ffffff;
    }

    .btn-hero-secondary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 16px 32px;
      background: #ffffff;
      color: var(--text-main);
      font-size: 1.05rem;
      font-weight: 700;
      border: 1px solid var(--border-color);
      border-radius: 9999px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }

    .btn-hero-secondary:hover {
      background: var(--bg-alt);
      border-color: #cbd5e1;
      transform: translateY(-2px);
    }

    /* 首屏数据网格卡片（无图片，纯CSS） */
    .hero-stat-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-md);
    }

    .hero-stat-item {
      text-align: center;
      border-right: 1px solid var(--border-color);
    }

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

    .hero-stat-num {
      font-size: 1.85rem;
      font-weight: 900;
      color: var(--primary-color);
      margin-bottom: 4px;
      font-family: inherit;
    }

    .hero-stat-label {
      font-size: 0.875rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* 板块公共间隔 */
    .content-section {
      padding: 80px 0;
      border-bottom: 1px solid var(--border-color);
    }

    /* 平台介绍 Section */
    .intro-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .intro-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }

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

    .intro-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: linear-gradient(180deg, var(--primary-color), var(--accent-color));
      opacity: 0;
      transition: opacity 0.3s ease;
    }

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

    .intro-icon {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(236, 72, 153, 0.1));
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      font-size: 1.5rem;
      color: var(--primary-color);
    }

    .intro-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .intro-text {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 聚合支持大模型展示条 */
    .models-stream {
      margin-top: 48px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }

    .models-head {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .models-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .model-chip {
      background: var(--bg-alt);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 6px 14px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-muted);
      transition: all 0.2s ease;
    }

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

    /* AIGC 一站式全能工坊与场景 */
    .scene-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .scene-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;
      transition: all 0.3s ease;
    }

    .scene-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(79, 70, 229, 0.4);
    }

    .scene-badge-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 14px;
    }

    .scene-tag {
      font-size: 0.78rem;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 6px;
      background: rgba(79, 70, 229, 0.08);
      color: var(--primary-color);
    }

    .scene-name {
      font-size: 1.2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .scene-desc {
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
      flex-grow: 1;
    }

    .scene-link {
      font-size: 0.875rem;
      font-weight: 700;
      color: var(--primary-color);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 案例中心：展示指定图片资源 */
    .cases-wrap {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
      margin-bottom: 32px;
    }

    .case-banner-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .case-img-box {
      width: 100%;
      overflow: hidden;
      background: #e2e8f0;
      aspect-ratio: 16 / 9;
      position: relative;
    }

    .case-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }

    .case-banner-item:hover .case-img-box img {
      transform: scale(1.03);
    }

    .case-info {
      padding: 20px;
    }

    .case-info h4 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .case-info p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    .case-square-grid {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }

    .case-square-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .case-square-item .case-img-box {
      aspect-ratio: 4 / 3;
    }

    .showcase-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 24px;
    }

    /* 对比评测 板块 (评测卡片与表格) */
    .eval-overview-card {
      background: linear-gradient(135deg, #1e1b4b, #312e81);
      border-radius: var(--radius-md);
      padding: 36px;
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 32px;
      box-shadow: var(--shadow-lg);
    }

    .eval-score-wrap {
      display: flex;
      align-items: center;
      gap: 24px;
    }

    .eval-big-score {
      font-size: 4rem;
      font-weight: 900;
      line-height: 1;
      color: #38bdf8;
      text-shadow: 0 4px 12px rgba(56, 189, 248, 0.4);
    }

    .eval-score-meta h3 {
      font-size: 1.35rem;
      font-weight: 800;
      margin-bottom: 6px;
      color: #ffffff;
    }

    .eval-stars {
      color: #facc15;
      font-size: 1.25rem;
      letter-spacing: 2px;
      margin-bottom: 4px;
    }

    .eval-score-text {
      font-size: 0.95rem;
      color: #cbd5e1;
    }

    .eval-cta-btn {
      padding: 14px 30px;
      background: #f43f5e;
      color: #ffffff;
      font-weight: 700;
      font-size: 1rem;
      border-radius: 9999px;
      box-shadow: 0 6px 18px rgba(244, 63, 94, 0.4);
      white-space: nowrap;
    }

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

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }

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

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

    .eval-table td {
      font-size: 0.925rem;
      color: var(--text-muted);
    }

    .eval-table tbody tr:hover {
      background: rgba(79, 70, 229, 0.02);
    }

    .tag-win {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      font-weight: 700;
      color: #059669;
    }

    .tag-lose {
      color: #94a3b8;
    }

    /* Token比价板块 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .token-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }

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

    .token-model-name {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .token-official {
      font-size: 0.85rem;
      color: var(--text-light);
      text-decoration: line-through;
      margin-bottom: 6px;
    }

    .token-current {
      font-size: 1.6rem;
      font-weight: 900;
      color: #e11d48;
      margin-bottom: 12px;
    }

    .token-chip-save {
      display: inline-block;
      padding: 4px 12px;
      background: #fef2f2;
      border: 1px solid #fecaca;
      color: #dc2626;
      border-radius: 9999px;
      font-size: 0.78rem;
      font-weight: 700;
    }

    /* 标准流程与服务网络 */
    .flow-steps-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 16px;
    }

    .flow-step-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 14px;
      text-align: center;
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .step-index {
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 0.9rem;
      margin: 0 auto 12px;
    }

    .step-name {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .step-desc {
      font-size: 0.8rem;
      color: var(--text-muted);
      line-height: 1.4;
    }

    .network-bar {
      margin-top: 36px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
    }

    .network-nodes {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .node-pill {
      background: var(--bg-alt);
      padding: 6px 14px;
      border-radius: 9999px;
      font-size: 0.85rem;
      color: var(--text-muted);
      font-weight: 600;
      border: 1px solid var(--border-color);
    }

    /* 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: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-stars {
      color: #f59e0b;
      margin-bottom: 12px;
      font-size: 0.9rem;
    }

    .review-body {
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
      flex-grow: 1;
    }

    .review-user-info {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
    }

    .user-avatar-placeholder {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary-color), var(--accent-cyan));
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1rem;
    }

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

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

    /* 加盟代理与商业生态 */
    .agent-box {
      background: linear-gradient(135deg, #fdf4ff 0%, #ede9fe 100%);
      border: 1px solid #d8b4fe;
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-sm);
      display: grid;
      grid-template-columns: 1.6fr 1fr;
      gap: 32px;
      align-items: center;
    }

    .agent-features {
      list-style: none;
      margin: 20px 0 28px;
    }

    .agent-features li {
      font-size: 0.95rem;
      color: var(--text-muted);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .agent-card-right {
      background: #ffffff;
      border: 1px solid #e9d5ff;
      border-radius: var(--radius-md);
      padding: 28px;
      text-align: center;
      box-shadow: var(--shadow-md);
    }

    /* 常见问题 FAQ 展开收起 */
    .faq-accordion {
      max-width: 880px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: border-color 0.2s ease;
    }

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

    .faq-question {
      padding: 18px 22px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      user-select: none;
    }

    .faq-arrow {
      width: 20px;
      height: 20px;
      transition: transform 0.3s ease;
      color: var(--text-light);
    }

    .faq-item.active .faq-arrow {
      transform: rotate(180deg);
      color: var(--primary-color);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background: #fafafa;
    }

    .faq-answer-inner {
      padding: 0 22px 18px;
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 需求匹配与提交表单 */
    .form-section-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 44px;
      box-shadow: var(--shadow-md);
    }

    .form-desc-side h3 {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .form-desc-side p {
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .form-contact-list {
      list-style: none;
      margin-bottom: 24px;
    }

    .form-contact-list li {
      font-size: 0.95rem;
      color: var(--text-muted);
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .match-form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

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

    .form-group label {
      font-size: 0.875rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .form-input,
    .form-select,
    .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      color: var(--text-main);
      background: #ffffff;
      outline: none;
      transition: border-color 0.25s ease, box-shadow 0.25s ease;
      font-family: inherit;
    }

    .form-input:focus,
    .form-select:focus,
    .form-textarea:focus {
      border-color: var(--primary-color);
      box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
    }

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

    .btn-submit {
      padding: 14px;
      background: linear-gradient(135deg, var(--primary-color), #7c3aed);
      color: #ffffff;
      font-size: 1rem;
      font-weight: 700;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: all 0.25s ease;
      box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
    }

    .btn-submit:hover {
      opacity: 0.95;
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(79, 70, 229, 0.4);
    }

    /* 行业资讯与百科短代码与文章链接 */
    .articles-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
    }

    .article-post-list {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }

    .article-shortcode-box {
      background: var(--bg-alt);
      border: 1px dashed var(--border-color);
      border-radius: var(--radius-sm);
      padding: 16px;
      margin-bottom: 20px;
      font-size: 0.925rem;
      color: var(--text-muted);
    }

    .article-links-ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .article-links-ul li a {
      font-size: 0.925rem;
      color: var(--primary-color);
      display: flex;
      align-items: center;
      gap: 6px;
      word-break: break-all;
    }

    .article-links-ul li a:hover {
      text-decoration: underline;
    }

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

    .wiki-side-card h4 {
      font-size: 1.15rem;
      font-weight: 800;
      margin-bottom: 14px;
      color: var(--text-main);
    }

    .wiki-side-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 12px;
    }

    /* 页脚 Footer：显式安全配色，保证可读性 */
    .site-footer {
      background: #0f172a;
      color: #cbd5e1;
      padding-top: 60px;
      padding-bottom: 30px;
      border-top: 1px solid #1e293b;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 32px;
      margin-bottom: 40px;
    }

    .footer-brand h4 {
      font-size: 1.25rem;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 12px;
    }

    .footer-brand p {
      font-size: 0.9rem;
      color: #94a3b8;
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .footer-col h5 {
      font-size: 1rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 16px;
    }

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

    .footer-col ul a {
      font-size: 0.875rem;
      color: #94a3b8;
    }

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

    .kefu-qr-box {
      text-align: center;
      background: #1e293b;
      padding: 16px;
      border-radius: var(--radius-sm);
      display: inline-block;
    }

    .kefu-qr-box img {
      width: 110px;
      height: 110px;
      display: block;
      border-radius: 6px;
      margin: 0 auto 8px;
      object-fit: cover;
    }

    .kefu-qr-box span {
      font-size: 0.8rem;
      color: #cbd5e1;
    }

    .footer-friendlinks {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      margin-bottom: 24px;
    }

    .friendlinks-title {
      font-size: 0.9rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 10px;
    }

    .friendlinks-list {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .friendlinks-list a {
      font-size: 0.85rem;
      color: #94a3b8;
      transition: color 0.2s ease;
    }

    .friendlinks-list a:hover {
      color: #38bdf8;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.85rem;
      color: #64748b;
    }

    .footer-bottom a {
      color: #64748b;
    }

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

    /* 悬浮客服挂件 */
    .float-panel {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-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 0.25s ease;
    }

    .float-btn:hover {
      background: var(--primary-color);
      color: #ffffff;
      transform: translateY(-2px);
    }

    .float-btn svg {
      width: 22px;
      height: 22px;
      fill: currentColor;
    }

    /* 响应式适配 */
    @media (max-width: 1024px) {
      .hero-stat-grid {
        grid-template-columns: repeat(2, 1fr);
        row-gap: 20px;
      }
      .hero-stat-item:nth-child(2) {
        border-right: none;
      }
      .intro-grid,
      .scene-grid,
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .token-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-steps-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .cases-wrap,
      .form-section-wrap,
      .agent-box,
      .articles-grid {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        padding: 16px 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        gap: 0;
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links a {
        padding: 12px 0;
        width: 100%;
        border-bottom: 1px solid #f1f5f9;
      }
      .mobile-toggle {
        display: block;
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .intro-grid,
      .scene-grid,
      .reviews-grid,
      .token-grid {
        grid-template-columns: 1fr;
      }
      .flow-steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .eval-overview-card {
        flex-direction: column;
        text-align: center;
        gap: 20px;
      }
      .eval-score-wrap {
        flex-direction: column;
        gap: 12px;
      }
      .showcase-row {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
    }