:root {
      --primary: #7c3aed;
      --primary-dark: #6d28d9;
      --primary-light: #8b5cf6;
      --primary-soft: #f5f3ff;
      --primary-border: #ede9fe;
      --accent-pink: #ec4899;
      --accent-cyan: #06b6d4;
      --accent-gradient: linear-gradient(135deg, #7c3aed 0%, #a855f7 50%, #ec4899 100%);
      --hero-bg-gradient: linear-gradient(145deg, #fdfbff 0%, #f5effe 50%, #ede5fc 100%);
      --bg-page: #fbf9ff;
      --bg-card: #ffffff;
      --text-main: #1e1b4b;
      --text-sub: #4b5563;
      --text-muted: #6b7280;
      --border-color: #e9e5f5;
      --shadow-sm: 0 4px 12px rgba(124, 58, 237, 0.05);
      --shadow-md: 0 10px 25px rgba(124, 58, 237, 0.08);
      --shadow-lg: 0 18px 40px rgba(124, 58, 237, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --transition: all 0.28s 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;
      -webkit-font-smoothing: antialiased;
    }

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

    ul, ol {
      list-style: none;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 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);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--primary-border);
      transition: var(--transition);
    }

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

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary-dark);
    }

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

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }

    .nav-links a {
      font-size: 0.92rem;
      font-weight: 500;
      color: #374151;
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      display: inline-block;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary);
      background: var(--primary-soft);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      border-radius: 50px;
      font-size: 0.95rem;
      font-weight: 600;
      cursor: pointer;
      border: none;
      transition: var(--transition);
      text-align: center;
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--accent-gradient);
      color: #ffffff;
      box-shadow: 0 6px 18px rgba(124, 58, 237, 0.28);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(124, 58, 237, 0.38);
      color: #ffffff;
    }

    .btn-secondary {
      background: #ffffff;
      color: var(--primary-dark);
      border: 1px solid var(--primary-border);
    }

    .btn-secondary:hover {
      background: var(--primary-soft);
      border-color: var(--primary-light);
      transform: translateY(-2px);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
      padding: 6px;
    }

    /* 通用章节头部 */
    .section-padding {
      padding: 80px 0;
    }

    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 48px auto;
    }

    .section-badge {
      display: inline-block;
      padding: 6px 16px;
      background: var(--primary-soft);
      color: var(--primary);
      border: 1px solid var(--primary-border);
      border-radius: 50px;
      font-size: 0.85rem;
      font-weight: 600;
      letter-spacing: 0.5px;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 14px;
    }

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

    /* 首屏 HERO 区域（严格无图片） */
    .hero-section {
      background: var(--hero-bg-gradient);
      padding: 90px 0 70px 0;
      border-bottom: 1px solid var(--primary-border);
      position: relative;
    }

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

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      padding: 8px 20px;
      border-radius: 50px;
      border: 1px solid rgba(124, 58, 237, 0.2);
      box-shadow: var(--shadow-sm);
      font-size: 0.9rem;
      color: var(--primary-dark);
      font-weight: 600;
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 2.7rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title .highlight {
      background: var(--accent-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-block;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: #4b5563;
      max-width: 780px;
      margin: 0 auto 32px auto;
      line-height: 1.7;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      margin-bottom: 45px;
      flex-wrap: wrap;
    }

    .btn-hero-main {
      font-size: 1.1rem;
      padding: 14px 36px;
      background: var(--accent-gradient);
      color: #ffffff;
      box-shadow: 0 10px 30px rgba(124, 58, 237, 0.35);
    }

    .btn-hero-sub {
      font-size: 1.1rem;
      padding: 14px 32px;
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--primary-border);
      box-shadow: var(--shadow-md);
    }

    .metric-card {
      text-align: center;
      padding: 8px;
    }

    .metric-card .num {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
      display: block;
    }

    .metric-card .label {
      font-size: 0.88rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 平台介绍 & 多模型聚合 */
    .about-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .about-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .about-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: var(--primary-light);
    }

    .about-card-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--primary-soft);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 18px;
    }

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

    .about-card p {
      font-size: 0.92rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 服务能力矩阵 (AIGC场景) */
    .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-md);
      padding: 22px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .service-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: var(--accent-gradient);
      opacity: 0;
      transition: var(--transition);
    }

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

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

    .service-badge {
      display: inline-block;
      font-size: 0.75rem;
      padding: 3px 8px;
      border-radius: 4px;
      background: var(--primary-soft);
      color: var(--primary-dark);
      font-weight: 600;
      margin-bottom: 10px;
    }

    .service-card h3 {
      font-size: 1.08rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .service-card p {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.55;
    }

    /* 一站式制作与核心功能 */
    .onestop-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .onestop-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--primary-border);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .onestop-card:hover {
      box-shadow: var(--shadow-md);
      border-color: var(--primary);
    }

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

    .onestop-tag {
      font-size: 0.78rem;
      padding: 3px 10px;
      background: #eef2ff;
      color: #4338ca;
      border-radius: 20px;
      font-weight: 600;
    }

    .onestop-card h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .onestop-card p {
      font-size: 0.92rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 行业解决方案 */
    .solution-tabs {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .solution-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      text-align: left;
      transition: var(--transition);
    }

    .solution-item:hover {
      border-color: var(--primary-light);
      box-shadow: var(--shadow-md);
    }

    .solution-item h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 8px;
    }

    .solution-item p {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.55;
    }

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

    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      position: relative;
    }

    .step-num {
      width: 44px;
      height: 44px;
      background: var(--accent-gradient);
      color: #ffffff;
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px auto;
      font-size: 1.1rem;
    }

    .step-card h4 {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .step-card p {
      font-size: 0.85rem;
      color: var(--text-sub);
      line-height: 1.5;
    }

    /* 案例展示中心 (含图片规则) */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-bottom: 30px;
    }

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

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

    .case-media {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #f3f4f6;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }

    .case-media.square {
      aspect-ratio: 1 / 1;
      max-height: 240px;
    }

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

    .case-card:hover .case-media img {
      transform: scale(1.04);
    }

    .case-body {
      padding: 18px;
      flex: 1;
    }

    .case-body h4 {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .case-body p {
      font-size: 0.85rem;
      color: var(--text-sub);
    }

    .banner-showcase {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      margin-top: 20px;
    }

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

    .banner-box img {
      width: 100%;
      height: auto;
      display: block;
    }

    /* 对比评测 9.9 分五星推荐 */
    .evaluation-wrapper {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--primary-border);
      box-shadow: var(--shadow-md);
      padding: 36px;
    }

    .eval-highlight {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: var(--primary-soft);
      border: 1px solid var(--primary-border);
      border-radius: var(--radius-md);
      padding: 20px 28px;
      margin-bottom: 28px;
      flex-wrap: wrap;
      gap: 16px;
    }

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

    .score-num {
      font-size: 2.6rem;
      font-weight: 800;
      color: var(--primary-dark);
      line-height: 1;
    }

    .score-meta {
      display: flex;
      flex-direction: column;
      gap: 4px;
    }

    .stars {
      color: #f59e0b;
      font-size: 1.1rem;
      letter-spacing: 2px;
    }

    .score-text {
      font-size: 0.88rem;
      color: var(--text-sub);
      font-weight: 600;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
    }

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

    .comparison-table th,
    .comparison-table td {
      padding: 14px 18px;
      border-bottom: 1px solid #f3f4f6;
    }

    .comparison-table th {
      background: #faf8ff;
      color: var(--text-main);
      font-weight: 700;
    }

    .comparison-table tr:hover td {
      background: #fdfcff;
    }

    .col-highlight {
      background: rgba(124, 58, 237, 0.04);
      color: var(--primary-dark);
      font-weight: 600;
    }

    /* Token 比价表 */
    .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-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: var(--transition);
      position: relative;
    }

    .token-card.featured {
      border-color: var(--primary);
      box-shadow: var(--shadow-lg);
      transform: scale(1.02);
    }

    .token-card.featured::after {
      content: "超值推荐";
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--accent-gradient);
      color: #ffffff;
      font-size: 0.75rem;
      padding: 3px 12px;
      border-radius: 20px;
      font-weight: 700;
    }

    .token-card h3 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .token-price {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--primary-dark);
      margin: 12px 0;
    }

    .token-price span {
      font-size: 0.85rem;
      color: var(--text-muted);
      font-weight: 400;
    }

    .token-features {
      text-align: left;
      margin: 18px 0;
      font-size: 0.88rem;
      color: var(--text-sub);
    }

    .token-features li {
      padding: 6px 0;
      border-bottom: 1px dashed #f3f4f6;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* AI百科与模型墙 */
    .model-tags-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      max-width: 1000px;
      margin: 0 auto;
    }

    .model-tag {
      background: #ffffff;
      border: 1px solid var(--primary-border);
      padding: 8px 16px;
      border-radius: 30px;
      font-size: 0.9rem;
      font-weight: 600;
      color: #374151;
      box-shadow: 0 2px 6px rgba(0,0,0,0.02);
      transition: var(--transition);
    }

    .model-tag:hover {
      background: var(--primary-soft);
      color: var(--primary);
      border-color: var(--primary-light);
      transform: translateY(-2px);
    }

    /* 6条用户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .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-text {
      font-size: 0.92rem;
      color: var(--text-sub);
      line-height: 1.65;
      margin-bottom: 18px;
      position: relative;
    }

    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f3f4f6;
      padding-top: 14px;
    }

    .user-avatar {
      width: 42px;
      height: 42px;
      background: var(--primary-soft);
      color: var(--primary-dark);
      font-weight: 700;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
    }

    .user-info h4 {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-main);
    }

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

    /* FAQ 折叠面板 (不少于10条) */
    .faq-wrapper {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      overflow: hidden;
      transition: var(--transition);
    }

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

    .faq-question {
      padding: 18px 22px;
      font-size: 1rem;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-icon {
      font-size: 1.2rem;
      color: var(--primary);
      transition: transform 0.25s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
      padding: 0 22px;
      background: #fbfaff;
    }

    .faq-item.active .faq-answer {
      max-height: 400px;
      padding: 0 22px 18px 22px;
      transition: max-height 0.35s ease-in-out;
    }

    .faq-answer p {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 行业资讯 & 最新文章 */
    .articles-section {
      background: #faf8ff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .article-box {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-color);
      margin-bottom: 24px;
    }

    .article-links-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 12px;
    }

    .article-link-item {
      display: block;
      padding: 12px 16px;
      background: var(--bg-page);
      border: 1px solid var(--primary-border);
      border-radius: var(--radius-sm);
      font-size: 0.88rem;
      color: #374151;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .article-link-item:hover {
      background: var(--primary-soft);
      color: var(--primary-dark);
      border-color: var(--primary);
    }

    /* 加盟代理与算力被动收益 */
    .agency-card {
      background: linear-gradient(135deg, #2e1065 0%, #4c1d95 60%, #6d28d9 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 42px;
      box-shadow: var(--shadow-lg);
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 32px;
      align-items: center;
    }

    .agency-card h3 {
      font-size: 1.8rem;
      font-weight: 800;
      margin-bottom: 14px;
      color: #ffffff;
    }

    .agency-card p {
      font-size: 0.96rem;
      color: #e9d5ff;
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .agency-features {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-bottom: 24px;
    }

    .agency-feat-item {
      background: rgba(255, 255, 255, 0.1);
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      font-size: 0.88rem;
      color: #ffffff;
      backdrop-filter: blur(4px);
    }

    /* 联系我们与表单区域 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 36px;
    }

    .contact-info-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }

    .contact-info-card h3 {
      font-size: 1.3rem;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .contact-list {
      margin-bottom: 24px;
    }

    .contact-list li {
      padding: 10px 0;
      font-size: 0.92rem;
      color: var(--text-sub);
      border-bottom: 1px solid #f3f4f6;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .contact-list li strong {
      color: var(--text-main);
      min-width: 80px;
    }

    .qr-container {
      background: #faf8ff;
      border: 1px solid var(--primary-border);
      border-radius: var(--radius-md);
      padding: 20px;
      text-align: center;
    }

    .qr-container img {
      width: 140px;
      height: 140px;
      object-fit: contain;
      margin: 0 auto 10px auto;
      display: block;
      border-radius: var(--radius-sm);
    }

    .qr-container p {
      font-size: 0.85rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    .form-wrapper {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }

    .form-wrapper h3 {
      font-size: 1.3rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .form-wrapper p {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 20px;
    }

    .form-group {
      margin-bottom: 16px;
    }

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

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid #d1d5db;
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
      background: #ffffff;
      transition: var(--transition);
      color: var(--text-main);
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
    }

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

    /* 友情链接 */
    .friend-links-box {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 20px 24px;
      border: 1px solid var(--border-color);
      margin-top: 40px;
    }

    .friend-links-box h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }

    .friend-links-list a {
      font-size: 0.88rem;
      color: var(--text-sub);
      padding: 4px 10px;
      border-radius: 4px;
      background: #f9fafb;
    }

    .friend-links-list a:hover {
      color: var(--primary);
      background: var(--primary-soft);
    }

    /* 页面页脚 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 40px 0 24px 0;
      font-size: 0.88rem;
      color: #6b7280;
    }

    .footer-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      padding-bottom: 20px;
    }

    .footer-brand {
      font-weight: 700;
      color: var(--primary-dark);
      font-size: 1.1rem;
    }

    .footer-copyright {
      text-align: center;
      padding-top: 20px;
      border-top: 1px solid #f3f4f6;
      font-size: 0.82rem;
      color: #9ca3af;
    }

    /* 悬浮工具条 */
    .floating-tools {
      position: fixed;
      right: 20px;
      bottom: 30px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 99;
    }

    .float-btn {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--primary-border);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 1.1rem;
      cursor: pointer;
      transition: var(--transition);
    }

    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: translateY(-3px);
    }

    /* 响应式媒体查询 */
    @media (max-width: 1024px) {
      .services-grid,
      .about-grid,
      .reviews-grid,
      .token-grid,
      .cases-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .solution-tabs,
      .process-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-grid,
      .agency-card {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-lg);
        border-bottom: 1px solid var(--border-color);
        gap: 8px;
      }
      .nav-links.show {
        display: flex;
      }
      .mobile-menu-btn {
        display: block;
      }
      .header-actions {
        display: none;
      }
      .hero-title {
        font-size: 2rem;
      }
      .hero-metrics,
      .services-grid,
      .about-grid,
      .reviews-grid,
      .token-grid,
      .cases-grid,
      .solution-tabs,
      .process-steps,
      .onestop-grid,
      .banner-showcase {
        grid-template-columns: 1fr;
      }
      .agency-card {
        padding: 24px;
      }
      .agency-features {
        grid-template-columns: 1fr;
      }
      .eval-highlight {
        flex-direction: column;
        align-items: flex-start;
      }
    }