:root {
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      --bg-main: #f8faff;
      --bg-card: #ffffff;
      --text-main: #1e2532;
      --text-muted: #5e6d82;
      --text-light: #8796a8;
      --border-color: #e5ebf5;
      
      /* 镭射幻彩光泽变量 (浅色基底上的幻彩表现) */
      --irid-primary: #5345ec;
      --irid-cyan: #00d2ff;
      --irid-pink: #f857a6;
      --irid-purple: #9d50bb;
      --irid-grad: linear-gradient(135deg, #4f46e5 0%, #7c3aed 35%, #ec4899 70%, #06b6d4 100%);
      --irid-grad-soft: linear-gradient(135deg, rgba(79, 70, 229, 0.08) 0%, rgba(236, 72, 153, 0.08) 50%, rgba(6, 182, 212, 0.08) 100%);
      --irid-border: linear-gradient(135deg, #a78bfa, #f472b6, #38bdf8);
      
      --shadow-sm: 0 4px 12px rgba(100, 116, 139, 0.08);
      --shadow-md: 0 10px 25px -5px rgba(79, 70, 229, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
      --shadow-irid: 0 12px 32px rgba(168, 85, 247, 0.16);
      
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      
      --container-width: 1200px;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

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

    body {
      font-family: var(--font-family);
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      position: relative;
      background-image: 
        radial-gradient(at 10% 10%, rgba(99, 102, 241, 0.05) 0px, transparent 50%),
        radial-gradient(at 90% 20%, rgba(236, 72, 153, 0.04) 0px, transparent 50%),
        radial-gradient(at 50% 80%, rgba(6, 182, 212, 0.05) 0px, transparent 50%);
      background-attachment: fixed;
    }

    /* 容器居中规范 */
    .container {
      width: 100%;
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 镭射质感文本与徽章 */
    .irid-text {
      background: var(--irid-grad);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-block;
    }

    .irid-badge {
      display: inline-flex;
      align-items: center;
      padding: 6px 16px;
      font-size: 0.875rem;
      font-weight: 600;
      border-radius: var(--radius-full);
      background: #ffffff;
      position: relative;
      margin-bottom: 16px;
      box-shadow: var(--shadow-sm);
    }
    .irid-badge::before {
      content: "";
      position: absolute;
      inset: -1.5px;
      border-radius: var(--radius-full);
      background: var(--irid-grad);
      z-index: -1;
    }

    /* 顶部导航 */
    .header-nav {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      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;
    }
    .nav-logo-group {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }
    .ai-page-logo {
      height: 40px;
      width: auto;
      display: block;
    }
    .nav-brand-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }
    .nav-links li a {
      color: var(--text-main);
      text-decoration: none;
      font-size: 0.95rem;
      font-weight: 500;
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      transition: var(--transition);
      display: inline-block;
    }
    .nav-links li a:hover {
      color: var(--irid-primary);
      background: rgba(79, 70, 229, 0.05);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .nav-burger {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--text-main);
      padding: 4px;
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 24px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-full);
      text-decoration: none;
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
      white-space: nowrap;
    }
    .btn-irid {
      background: var(--irid-grad);
      color: #ffffff;
      box-shadow: 0 4px 15px rgba(124, 58, 237, 0.25);
    }
    .btn-irid:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px rgba(124, 58, 237, 0.4);
      color: #ffffff;
    }
    .btn-outline {
      background: #ffffff;
      color: var(--text-main);
      border: 1px solid #cbd5e1;
    }
    .btn-outline:hover {
      border-color: var(--irid-primary);
      color: var(--irid-primary);
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }
    .btn-lg {
      padding: 14px 34px;
      font-size: 1.05rem;
    }

    /* Hero 首屏 - 纯几何与动效质感（严格无图片） */
    .hero-section {
      padding: 70px 0 60px;
      position: relative;
      text-align: center;
      overflow: hidden;
    }
    .hero-container {
      max-width: 900px;
      margin: 0 auto;
    }
    .hero-title {
      font-size: 2.8rem;
      line-height: 1.25;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -1px;
    }
    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 32px;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }
    .hero-buttons {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 40px;
    }
    .hero-portal-btn {
      position: relative;
      overflow: hidden;
      background: linear-gradient(135deg, #3b82f6, #8b5cf6, #ec4899);
      background-size: 200% 200%;
      animation: iridPulse 4s ease infinite;
      color: #fff;
      font-weight: 700;
      border: none;
      padding: 14px 36px;
      font-size: 1.1rem;
    }
    @keyframes iridPulse {
      0% { background-position: 0% 50%; }
      50% { background-position: 100% 50%; }
      100% { background-position: 0% 50%; }
    }
    .hero-tags-box {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 24px;
    }
    .hero-tag {
      font-size: 0.85rem;
      color: var(--text-muted);
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 5px 14px;
      border-radius: var(--radius-full);
      box-shadow: var(--shadow-sm);
    }

    /* 指标统计栏 */
    .metrics-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 48px;
    }
    .metric-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 24px 16px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      text-align: center;
      position: relative;
      transition: var(--transition);
    }
    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #c7d2fe;
    }
    .metric-card::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 15%;
      right: 15%;
      height: 3px;
      border-radius: 3px 3px 0 0;
      background: var(--irid-grad);
      opacity: 0.7;
    }
    .metric-num {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--irid-primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .metric-label {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 区块通用结构 */
    .section-wrap {
      padding: 70px 0;
      position: relative;
    }
    .section-head {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 48px;
    }
    .section-subtitle {
      font-size: 0.9rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--irid-purple);
      margin-bottom: 8px;
      display: block;
    }
    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 卡片网格通用 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }

    /* 平台介绍模块 */
    .intro-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-sm);
      margin-bottom: 36px;
    }
    .intro-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 36px;
      align-items: center;
    }
    .intro-content h3 {
      font-size: 1.6rem;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--text-main);
    }
    .intro-content p {
      color: var(--text-muted);
      font-size: 0.98rem;
      line-height: 1.75;
      margin-bottom: 16px;
    }
    .intro-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 20px;
    }
    .intro-badge-pill {
      background: #f1f5f9;
      color: #334155;
      padding: 5px 12px;
      border-radius: var(--radius-full);
      font-size: 0.85rem;
      font-weight: 500;
    }
    .intro-stats-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .intro-stat-item {
      background: #fafbff;
      border: 1px solid #eef2f8;
      padding: 18px;
      border-radius: var(--radius-md);
    }
    .intro-stat-item strong {
      display: block;
      font-size: 1.4rem;
      color: var(--irid-primary);
      margin-bottom: 4px;
    }
    .intro-stat-item span {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* AIGC 服务卡片 */
    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
      position: relative;
    }
    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-irid);
      border-color: #cbd5e1;
    }
    .service-card-head {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 16px;
    }
    .service-icon {
      width: 46px;
      height: 46px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      background: var(--irid-grad-soft);
      color: var(--irid-primary);
      flex-shrink: 0;
    }
    .service-card h4 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .service-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      flex-grow: 1;
    }
    .service-card-foot {
      margin-top: 18px;
      padding-top: 14px;
      border-top: 1px dashed var(--border-color);
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      color: var(--irid-primary);
      font-weight: 600;
    }

    /* 支持模型矩阵标签云 */
    .models-banner {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-sm);
      margin-top: 36px;
    }
    .models-tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 16px;
    }
    .model-chip {
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      padding: 6px 14px;
      border-radius: var(--radius-sm);
      font-size: 0.85rem;
      font-weight: 600;
      color: #334155;
      transition: var(--transition);
    }
    .model-chip:hover {
      background: #ffffff;
      color: var(--irid-primary);
      border-color: #a5b4fc;
      transform: scale(1.05);
      box-shadow: var(--shadow-sm);
    }

    /* 流程步骤 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .flow-step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .step-badge {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--irid-grad);
      color: #ffffff;
      font-weight: 700;
      font-size: 0.95rem;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
    }
    .flow-step-card h4 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .flow-step-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 案例图片展示卡片 */
    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .case-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
    }
    .case-media {
      width: 100%;
      background: #f1f5f9;
      position: relative;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .case-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: var(--transition);
    }
    .case-card:hover .case-media img {
      transform: scale(1.03);
    }
    .case-info {
      padding: 22px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .case-tag {
      font-size: 0.75rem;
      font-weight: 700;
      text-transform: uppercase;
      color: var(--irid-purple);
      margin-bottom: 6px;
    }
    .case-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .case-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    /* 宣传图画廊 */
    .banner-gallery-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 28px;
    }
    .gallery-item {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      background: #ffffff;
      transition: var(--transition);
    }
    .gallery-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .gallery-item img {
      width: 100%;
      height: 190px;
      object-fit: cover;
      display: block;
    }
    .gallery-caption {
      padding: 12px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-main);
      text-align: center;
      background: #ffffff;
    }

    /* 对比评测板块 */
    .evaluation-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
      margin-bottom: 28px;
    }
    .eval-highlight {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 24px;
      margin-bottom: 28px;
      flex-wrap: wrap;
      gap: 20px;
    }
    .eval-score-wrap {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .eval-score-num {
      font-size: 3.5rem;
      font-weight: 900;
      color: var(--irid-primary);
      line-height: 1;
    }
    .eval-stars {
      color: #f59e0b;
      font-size: 1.4rem;
      letter-spacing: 2px;
    }
    .table-container {
      overflow-x: auto;
      margin-top: 16px;
    }
    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.95rem;
    }
    .custom-table th, .custom-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }
    .custom-table th {
      background: #f8fafc;
      font-weight: 700;
      color: var(--text-main);
    }
    .custom-table td strong {
      color: var(--irid-primary);
    }
    .custom-table tr:hover td {
      background: rgba(99, 102, 241, 0.02);
    }

    /* Token 比价板块 */
    .price-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .price-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
    }
    .price-card.featured {
      border-color: #a78bfa;
      box-shadow: var(--shadow-irid);
      transform: translateY(-6px);
    }
    .price-card.featured::before {
      content: "高性价比推荐";
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--irid-grad);
      color: #ffffff;
      padding: 3px 14px;
      border-radius: var(--radius-full);
      font-size: 0.75rem;
      font-weight: 700;
    }
    .price-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .price-val {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .price-val span {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: normal;
    }
    .price-features {
      list-style: none;
      margin: 20px 0 28px;
      text-align: left;
    }
    .price-features li {
      padding: 8px 0;
      font-size: 0.9rem;
      color: var(--text-muted);
      border-bottom: 1px dashed #f1f5f9;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .price-features li::before {
      content: "✓";
      color: #10b981;
      font-weight: bold;
    }

    /* 客户评论卡片 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testi-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;
    }
    .testi-stars {
      color: #f59e0b;
      margin-bottom: 12px;
      font-size: 0.9rem;
    }
    .testi-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 18px;
      flex-grow: 1;
      font-style: normal;
    }
    .testi-user {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .testi-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--irid-grad-soft);
      border: 1px solid #e0e7ff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--irid-primary);
    }
    .testi-name {
      font-weight: 700;
      font-size: 0.95rem;
      color: var(--text-main);
    }
    .testi-role {
      font-size: 0.8rem;
      color: var(--text-light);
    }

    /* FAQ 手风琴折叠 */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .faq-trigger {
      width: 100%;
      text-align: left;
      padding: 18px 24px;
      background: none;
      border: none;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .faq-trigger:hover {
      color: var(--irid-primary);
    }
    .faq-icon {
      font-size: 1.2rem;
      transition: transform 0.3s ease;
      color: var(--text-light);
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      color: var(--irid-primary);
    }
    .faq-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-out;
      padding: 0 24px;
      background: #fafbff;
    }
    .faq-item.active .faq-content {
      padding: 0 24px 20px;
      border-top: 1px solid #f1f5f9;
    }
    .faq-content p {
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
      padding-top: 14px;
    }

    /* 文章与百科推荐 */
    .article-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }
    .article-list {
      list-style: none;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-top: 20px;
    }
    .article-list li a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 14px 18px;
      background: #f8fafc;
      border-radius: var(--radius-sm);
      text-decoration: none;
      color: var(--text-main);
      font-size: 0.92rem;
      border: 1px solid #edf2f7;
      transition: var(--transition);
    }
    .article-list li a:hover {
      background: #ffffff;
      border-color: #cbd5e1;
      color: var(--irid-primary);
      transform: translateX(4px);
      box-shadow: var(--shadow-sm);
    }
    .article-placeholder-tag {
      font-size: 0.85rem;
      color: var(--text-light);
      margin-top: 12px;
    }

    /* 需求匹配与联系我们表单 */
    .contact-container {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }
    .contact-grid {
      display: grid;
      grid-template-columns: 1.1fr 1fr;
    }
    .form-panel {
      padding: 40px;
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      color: var(--text-main);
      background: #ffffff;
      transition: var(--transition);
      font-family: inherit;
    }
    .form-control:focus {
      outline: none;
      border-color: var(--irid-primary);
      box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 110px;
    }
    .info-panel {
      background: linear-gradient(135deg, #f8faff 0%, #f1f5f9 100%);
      padding: 40px;
      border-left: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .qr-block {
      background: #ffffff;
      padding: 20px;
      border-radius: var(--radius-md);
      text-align: center;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      max-width: 260px;
      margin: 20px 0;
    }
    .qr-block img {
      max-width: 170px;
      height: auto;
      display: block;
      margin: 0 auto 10px;
      border-radius: 6px;
    }
    .contact-details-list {
      list-style: none;
      margin-top: 14px;
    }
    .contact-details-list li {
      margin-bottom: 12px;
      font-size: 0.92rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    /* 加盟代理模块 */
    .agent-box {
      background: linear-gradient(135deg, rgba(79, 70, 229, 0.04) 0%, rgba(236, 72, 153, 0.04) 100%);
      border: 1px solid #ddd6fe;
      border-radius: var(--radius-lg);
      padding: 40px;
      text-align: center;
      position: relative;
    }
    .agent-benefits {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin: 28px 0;
      text-align: left;
    }
    .agent-benefit-item {
      background: #ffffff;
      padding: 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .agent-benefit-item h5 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--irid-primary);
      margin-bottom: 8px;
    }
    .agent-benefit-item p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* 友情链接 */
    .friend-links-wrap {
      padding: 24px 0;
      border-top: 1px solid var(--border-color);
      margin-top: 30px;
    }
    .friend-links-title {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-muted);
      margin-bottom: 12px;
    }
    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }
    .friend-links-list a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 0.88rem;
      transition: var(--transition);
    }
    .friend-links-list a:hover {
      color: var(--irid-primary);
    }

    /* 页脚 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 48px 0 32px;
      color: var(--text-muted);
      font-size: 0.9rem;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.2fr;
      gap: 36px;
      margin-bottom: 36px;
    }
    .footer-col h5 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .footer-links-list {
      list-style: none;
    }
    .footer-links-list li {
      margin-bottom: 8px;
    }
    .footer-links-list a {
      color: var(--text-muted);
      text-decoration: none;
      transition: var(--transition);
    }
    .footer-links-list a:hover {
      color: var(--irid-primary);
    }
    .footer-bottom {
      border-top: 1px solid #f1f5f9;
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.85rem;
    }

    /* 浮动客服挂件 */
    .float-service-panel {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: #ffffff;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
      border: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--text-main);
      text-decoration: none;
      transition: var(--transition);
      position: relative;
    }
    .float-btn:hover {
      background: var(--irid-primary);
      color: #ffffff;
      transform: scale(1.08);
    }
    .float-btn svg {
      width: 22px;
      height: 22px;
      fill: currentColor;
    }
    .float-qr-popup {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      padding: 16px;
      border-radius: var(--radius-md);
      box-shadow: 0 10px 30px rgba(0,0,0,0.15);
      border: 1px solid var(--border-color);
      width: 180px;
      text-align: center;
      display: none;
    }
    .float-qr-popup img {
      max-width: 100%;
      height: auto;
      border-radius: 4px;
      margin-bottom: 6px;
    }
    .float-qr-popup span {
      font-size: 0.8rem;
      color: var(--text-muted);
      display: block;
    }
    .float-btn:hover .float-qr-popup {
      display: block;
    }

    /* 响应式媒体查询 */
    @media (max-width: 1024px) {
      .grid-4, .flow-steps, .banner-gallery-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .hero-title {
        font-size: 2rem;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: 16px 20px;
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-burger {
        display: block;
      }
      .metrics-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3, .price-grid, .testimonial-grid, .intro-grid, .contact-grid, .agent-benefits, .article-list {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .info-panel {
        border-left: none;
        border-top: 1px solid var(--border-color);
      }
    }