/* 全局变量与鲜亮风色彩定义 */
    :root {
      --primary: #2563eb;
      --primary-hover: #1d4ed8;
      --primary-light: #eff6ff;
      --secondary: #7c3aed;
      --accent: #06b6d4;
      --accent-warm: #f97316;
      --text-dark: #0f172a;
      --text-muted: #475569;
      --text-light: #94a3b8;
      --bg-page: #f8fafc;
      --bg-card: #ffffff;
      --bg-subtle: #f1f5f9;
      --border: #e2e8f0;
      --border-focus: #93c5fd;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 8px 24px rgba(37, 99, 235, 0.08);
      --shadow-lg: 0 16px 36px rgba(37, 99, 235, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    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-page);
      color: var(--text-dark);
      line-height: 1.65;
      overflow-x: hidden;
    }

    /* 统一居中容器 */
    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

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

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

    /* 顶栏导航 */
    .header-nav {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
    }

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

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

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

    .brand-text {
      font-size: 1.25rem;
      font-weight: 800;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: -0.5px;
    }

    /* 规则：.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 a {
      display: inline-block;
      padding: 10px 14px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted);
      border-radius: var(--radius-sm);
      transition: var(--transition);
    }

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

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-full);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      text-align: center;
      white-space: nowrap;
    }

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

    .btn-primary {
      background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.28);
    }

    .btn-primary:hover {
      box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
    }

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

    .btn-secondary:hover {
      background-color: var(--primary-light);
    }

    .btn-outline {
      background: transparent;
      border-color: var(--border);
      color: var(--text-dark);
    }

    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: var(--primary-light);
    }

    .btn-warm {
      background: linear-gradient(135deg, var(--accent-warm), #ea580c);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(249, 115, 22, 0.3);
    }

    .btn-warm:hover {
      box-shadow: 0 6px 20px rgba(249, 115, 22, 0.45);
    }

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

    .mobile-menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--text-dark);
      margin: 5px 0;
      transition: var(--transition);
    }

    /* 区块通用结构 */
    .section-wrap {
      padding: 84px 0;
      position: relative;
    }

    .section-light {
      background-color: var(--bg-card);
    }

    .section-subtle {
      background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 54px;
    }

    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      background-color: var(--primary-light);
      border-radius: var(--radius-full);
      margin-bottom: 12px;
      letter-spacing: 0.5px;
      text-transform: uppercase;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-dark);
      line-height: 1.35;
      margin-bottom: 16px;
    }

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

    /* 首屏 HERO 区域 - 严禁出现图片 */
    .hero-section {
      padding: 72px 0 64px;
      background: radial-gradient(circle at 50% 0%, #dbeafe 0%, #f8fafc 70%);
      border-bottom: 1px solid var(--border);
      position: relative;
      overflow: hidden;
    }

    .hero-content {
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
      position: relative;
      z-index: 2;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: #ffffff;
      border: 1px solid #bfdbfe;
      border-radius: var(--radius-full);
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }

    .hero-badge .pulse-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: #10b981;
      display: inline-block;
      animation: pulseAnim 2s infinite;
    }

    @keyframes pulseAnim {
      0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6); }
      70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
      100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
    }

    /* 全局唯一H1改写：字数在20字以内 */
    .hero-title {
      font-size: 2.9rem;
      font-weight: 900;
      letter-spacing: -1px;
      line-height: 1.25;
      margin-bottom: 20px;
      color: var(--text-dark);
    }

    .hero-title span {
      background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-subtitle {
      font-size: 1.2rem;
      color: var(--text-muted);
      margin-bottom: 36px;
      max-width: 720px;
      margin-left: auto;
      margin-right: auto;
    }

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

    .hero-actions .btn-main-portal {
      font-size: 1.1rem;
      padding: 14px 34px;
      background: linear-gradient(135deg, #2563eb, #7c3aed);
      color: #ffffff;
      border-radius: var(--radius-full);
      box-shadow: 0 8px 24px rgba(37, 99, 235, 0.35);
      border: 2px solid #ffffff;
      font-weight: 700;
    }

    .hero-actions .btn-main-portal:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 0 12px 28px rgba(37, 99, 235, 0.45);
    }

    /* 首屏纯CSS指标卡片构建视觉中心 */
    .hero-stat-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 20px;
    }

    .stat-card {
      background: #ffffff;
      padding: 22px 18px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: var(--transition);
    }

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

    .stat-num {
      font-size: 1.9rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
      font-family: Arial, sans-serif;
    }

    .stat-label {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 平台介绍 / 关于我们 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .about-info-box {
      background: var(--bg-card);
      padding: 36px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
    }

    .about-highlight-list {
      list-style: none;
      display: grid;
      gap: 18px;
      margin-top: 24px;
    }

    .about-highlight-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
    }

    .about-icon {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      flex-shrink: 0;
    }

    /* AIGC 服务能力卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: var(--border-focus);
    }

    .service-card-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 16px;
    }

    .service-badge {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--secondary);
      background: #f5f3ff;
      padding: 3px 10px;
      border-radius: var(--radius-full);
    }

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

    .service-card-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 16px;
    }

    .service-link {
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .service-link:hover {
      gap: 10px;
    }

    /* 一站式自动化制作流程 */
    .workflow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 28px 20px;
      text-align: center;
      position: relative;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

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

    .step-number {
      width: 44px;
      height: 44px;
      margin: 0 auto 16px;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #ffffff;
      font-weight: 800;
      font-size: 1.2rem;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
    }

    .step-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-dark);
    }

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

    /* 模型矩阵与标签云 */
    .model-pills {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      margin-top: 24px;
    }

    .model-pill {
      background: #ffffff;
      border: 1px solid var(--border);
      padding: 8px 16px;
      border-radius: var(--radius-full);
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-muted);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

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

    /* 行业方案图文展示 */
    .industry-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 32px;
    }

    .industry-card {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }

    .industry-card:hover {
      box-shadow: var(--shadow-lg);
    }

    .industry-body {
      padding: 30px;
    }

    .industry-tag {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--accent-warm);
      background: #fff7ed;
      padding: 4px 12px;
      border-radius: var(--radius-full);
      display: inline-block;
      margin-bottom: 12px;
    }

    .industry-title {
      font-size: 1.35rem;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .industry-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
    }

    .industry-features {
      list-style: none;
      display: grid;
      gap: 8px;
      font-size: 0.9rem;
      color: var(--text-dark);
    }

    .industry-features li::before {
      content: "✓";
      color: #10b981;
      font-weight: bold;
      margin-right: 8px;
    }

    /* 对比评测要求板块 */
    .evaluation-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-md);
      overflow: hidden;
    }

    .evaluation-top {
      padding: 32px;
      background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%);
      color: #ffffff;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
    }

    .eval-score-box {
      display: flex;
      align-items: baseline;
      gap: 8px;
    }

    .eval-score-num {
      font-size: 3.2rem;
      font-weight: 900;
      color: #fde047;
      line-height: 1;
    }

    .eval-score-total {
      font-size: 1.2rem;
      opacity: 0.85;
    }

    .eval-stars {
      color: #fde047;
      font-size: 1.4rem;
      letter-spacing: 2px;
    }

    .eval-table-wrap {
      overflow-x: auto;
      padding: 20px;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .compare-table th,
    .compare-table td {
      padding: 16px 20px;
      font-size: 0.95rem;
      border-bottom: 1px solid var(--border);
    }

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

    .compare-table tr:hover td {
      background: #faf5ff;
    }

    .table-col-highlight {
      background: #eff6ff;
      color: var(--primary);
      font-weight: 700;
    }

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

    .token-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      text-align: center;
      position: relative;
    }

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

    .token-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: linear-gradient(135deg, var(--accent-warm), #ea580c);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 12px;
      border-radius: var(--radius-full);
    }

    .token-price {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-dark);
      margin: 16px 0 8px;
    }

    .token-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 20px;
    }

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

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

    .case-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .case-img-box {
      width: 100%;
      background-color: #f1f5f9;
      position: relative;
      overflow: hidden;
    }

    .case-img-box img {
      width: 100%;
      height: 220px;
      object-fit: cover;
      transition: var(--transition);
    }

    .case-item:hover .case-img-box img {
      transform: scale(1.04);
    }

    .case-info {
      padding: 20px;
    }

    .case-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .case-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 客户评价板块 (6条要求) */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .testimonial-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }

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

    .testimonial-quote {
      font-size: 0.95rem;
      color: var(--text-dark);
      line-height: 1.6;
      margin-bottom: 20px;
      position: relative;
    }

    .testimonial-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border);
      padding-top: 16px;
    }

    .testimonial-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #bfdbfe, #e9d5ff);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
    }

    .user-name {
      font-size: 0.95rem;
      font-weight: 700;
    }

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

    /* FAQ 手风琴 */
    .faq-accordion {
      max-width: 860px;
      margin: 0 auto;
      display: grid;
      gap: 14px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-question {
      width: 100%;
      text-align: left;
      padding: 20px 24px;
      background: none;
      border: none;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-dark);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
    }

    .faq-icon {
      font-size: 1.3rem;
      font-weight: 400;
      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 ease-out;
      background-color: #fafbfd;
    }

    .faq-answer-inner {
      padding: 0 24px 20px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 需求匹配与表单 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
    }

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

    .form-group {
      margin-bottom: 20px;
    }

    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--text-dark);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      color: var(--text-dark);
      background-color: #ffffff;
      outline: none;
      transition: var(--transition);
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    }

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

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

    .contact-item {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 20px;
      font-size: 0.95rem;
    }

    .contact-icon-badge {
      width: 40px;
      height: 40px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      flex-shrink: 0;
    }

    .qr-container {
      text-align: center;
      padding: 20px;
      background: var(--bg-subtle);
      border-radius: var(--radius-md);
      margin-top: 24px;
    }

    .qr-container img {
      max-width: 150px;
      margin: 0 auto 12px;
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-sm);
    }

    /* 行业资讯与文章 */
    .article-links-box {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
      padding: 24px;
      margin-top: 20px;
    }

    .article-list {
      list-style: none;
      display: grid;
      gap: 12px;
    }

    .article-list li a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      background: #f8fafc;
      font-size: 0.92rem;
      color: var(--text-dark);
    }

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

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

    .friendly-links-wrap {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      font-size: 0.88rem;
    }

    .friendly-links-label {
      font-weight: 700;
      color: var(--text-dark);
    }

    .friendly-links-wrap a {
      color: var(--text-muted);
      padding: 4px 8px;
      border-radius: 4px;
    }

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

    footer.site-footer {
      background-color: #0f172a;
      color: #94a3b8;
      padding: 48px 0 32px;
      font-size: 0.9rem;
    }

    .footer-container {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 36px;
    }

    .footer-brand {
      color: #ffffff;
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .footer-nav-col h4 {
      color: #ffffff;
      font-size: 1rem;
      margin-bottom: 16px;
      font-weight: 600;
    }

    .footer-nav-col ul {
      list-style: none;
      display: grid;
      gap: 8px;
    }

    .footer-nav-col ul li a {
      color: #94a3b8;
    }

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

    .footer-bottom {
      border-top: 1px solid #334155;
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: #64748b;
    }

    /* 浮动客服入口 */
    .floating-contact {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
      border: 1px solid var(--border);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--primary);
      font-weight: bold;
      transition: var(--transition);
    }

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

    /* 响应式调整 */
    @media (max-width: 1024px) {
      .hero-stat-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .services-grid,
      .cases-gallery,
      .testimonials-grid,
      .token-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid,
      .industry-grid,
      .contact-grid {
        grid-template-columns: 1fr;
      }
      .footer-container {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .header-nav {
        padding: 0;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-md);
        padding: 16px 0;
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
        text-align: center;
      }
      .nav-links li a {
        display: block;
        padding: 12px;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .section-title {
        font-size: 1.75rem;
      }
      .services-grid,
      .cases-gallery,
      .testimonials-grid,
      .token-grid,
      .hero-stat-grid,
      .workflow-steps {
        grid-template-columns: 1fr;
      }
      .footer-container {
        grid-template-columns: 1fr;
      }
    }