:root {
      --primary: #2563eb;
      --primary-dark: #1d4ed8;
      --accent-orange: #ff5722;
      --accent-coral: #ff4757;
      --accent-cyan: #06b6d4;
      --accent-yellow: #f59e0b;
      --bg-light: #f8fafc;
      --bg-white: #ffffff;
      --bg-card: #ffffff;
      --bg-warm: #fffbf5;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-sub: #64748b;
      --border-color: #e2e8f0;
      --border-accent: #cbd5e1;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.05);
      --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      --shadow-hover: 0 20px 30px -10px rgba(37, 99, 235, 0.18);
      --transition: all 0.25s ease-in-out;
    }

    * {
      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-light);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    /* 主容器统一宽度体系 */
    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(12px);
      border-bottom: 2px solid #2563eb;
      box-shadow: 0 4px 15px rgba(37, 99, 235, 0.06);
    }

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

    .brand-area {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }

    .ai-page-logo {
      height: 42px;
      width: auto;
      display: block;
    }

    .brand-name {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }

    .brand-badge {
      background: linear-gradient(135deg, #ff5722, #ff4757);
      color: #ffffff;
      font-size: 0.72rem;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 20px;
      text-transform: uppercase;
    }

    .main-nav {
      display: flex;
      align-items: center;
    }

    /* 严格按照要求设置 .nav-links 的 gap 属性为 0 */
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }

    .nav-links li a {
      display: inline-block;
      padding: 10px 14px;
      color: var(--text-muted);
      font-weight: 600;
      font-size: 0.95rem;
      text-decoration: none;
      transition: var(--transition);
      border-radius: var(--radius-sm);
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background-color: #eff6ff;
    }

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

    .btn-nav-primary {
      background-color: var(--primary);
      color: #ffffff;
      padding: 9px 20px;
      font-weight: 700;
      font-size: 0.9rem;
      border-radius: var(--radius-md);
      text-decoration: none;
      transition: var(--transition);
      box-shadow: 0 4px 10px rgba(37, 99, 235, 0.25);
    }

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

    .mobile-menu-btn {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 6px 10px;
      font-size: 1.25rem;
      cursor: pointer;
      color: var(--text-main);
    }

    /* 醒目明艳撞色组件基础 */
    .section-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background-color: #fef2f2;
      border: 1px solid #fecaca;
      color: var(--accent-coral);
      padding: 4px 14px;
      border-radius: 30px;
      font-size: 0.85rem;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .section-header {
      text-align: center;
      margin-bottom: 48px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto;
    }

    .page-section {
      padding: 80px 0;
      position: relative;
    }

    .section-alt {
      background-color: var(--bg-white);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .section-warm {
      background: linear-gradient(180deg, #fffbf5 0%, #f8fafc 100%);
    }

    /* Hero 首屏 (严格无图片) */
    .hero-section {
      padding: 90px 0 70px 0;
      background: radial-gradient(circle at 80% 20%, #e0e7ff 0%, #f0fdf4 40%, #ffffff 80%);
      position: relative;
      border-bottom: 1px solid var(--border-color);
    }

    .hero-content {
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
    }

    .hero-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #eff6ff;
      border: 1px solid #bfdbfe;
      color: var(--primary);
      padding: 6px 18px;
      border-radius: 50px;
      font-weight: 700;
      font-size: 0.9rem;
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }

    .hero-title {
      font-size: 3rem;
      font-weight: 900;
      color: #0f172a;
      line-height: 1.25;
      letter-spacing: -1px;
      margin-bottom: 20px;
    }

    .hero-title .highlight-blue {
      color: var(--primary);
      text-decoration: underline;
      text-decoration-color: #93c5fd;
      text-underline-offset: 6px;
    }

    .hero-title .highlight-orange {
      color: var(--accent-orange);
    }

    .hero-description {
      font-size: 1.2rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 36px;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }

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

    .btn-hero-portal {
      background: linear-gradient(135deg, #ff5722 0%, #ff4757 100%);
      color: #ffffff;
      padding: 16px 36px;
      font-size: 1.15rem;
      font-weight: 800;
      border-radius: var(--radius-md);
      text-decoration: none;
      box-shadow: 0 10px 25px -4px rgba(255, 87, 34, 0.45);
      transition: var(--transition);
      border: 2px solid #ff7849;
    }

    .btn-hero-portal:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 0 15px 30px -4px rgba(255, 87, 34, 0.55);
    }

    .btn-hero-secondary {
      background-color: #ffffff;
      color: var(--primary);
      padding: 16px 30px;
      font-size: 1.1rem;
      font-weight: 700;
      border-radius: var(--radius-md);
      text-decoration: none;
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .btn-hero-secondary:hover {
      background-color: #eff6ff;
      transform: translateY(-2px);
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-md);
    }

    .metric-item {
      text-align: center;
      padding: 10px;
      border-right: 1px dashed var(--border-color);
    }

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

    .metric-num {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
      margin-bottom: 6px;
    }

    .metric-num.orange {
      color: var(--accent-orange);
    }

    .metric-num.coral {
      color: var(--accent-coral);
    }

    .metric-num.cyan {
      color: var(--accent-cyan);
    }

    .metric-label {
      font-size: 0.88rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* 标签云与支持模型 */
    .model-strip {
      margin-top: 36px;
      padding: 18px 24px;
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }

    .model-strip-title {
      font-weight: 800;
      font-size: 0.9rem;
      color: var(--text-main);
      margin-right: 8px;
      padding-right: 12px;
      border-right: 2px solid var(--primary);
    }

    .model-pill {
      background-color: #f1f5f9;
      color: #334155;
      font-size: 0.8rem;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 4px;
      border: 1px solid #e2e8f0;
      transition: var(--transition);
    }

    .model-pill:hover {
      background-color: #dbeafe;
      color: var(--primary);
      border-color: #93c5fd;
    }

    /* 关于我们 & 平台介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }

    .about-card-box {
      background: #ffffff;
      border: 2px solid #bfdbfe;
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-md);
    }

    .about-card-title {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 16px;
    }

    .about-feature-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-top: 20px;
    }

    .about-feature-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 0.98rem;
      color: var(--text-muted);
    }

    .about-feature-list li strong {
      color: var(--text-main);
    }

    .icon-check {
      display: inline-block;
      min-width: 20px;
      height: 20px;
      background: #2563eb;
      color: #ffffff;
      border-radius: 50%;
      text-align: center;
      line-height: 20px;
      font-size: 12px;
      font-weight: 900;
    }

    /* AIGC场景网格与能力卡片 */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .service-card {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-top: 4px solid var(--primary);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .service-card.coral-border {
      border-top-color: var(--accent-coral);
    }

    .service-card.orange-border {
      border-top-color: var(--accent-orange);
    }

    .service-card.cyan-border {
      border-top-color: var(--accent-cyan);
    }

    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: #93c5fd;
    }

    .service-badge {
      align-self: flex-start;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 20px;
      background-color: #eff6ff;
      color: var(--primary);
      margin-bottom: 12px;
    }

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

    .service-content {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    /* 一站式制作专区 */
    .workflow-features {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 32px;
    }

    .workflow-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      transition: var(--transition);
    }

    .workflow-box:hover {
      border-color: var(--accent-orange);
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
    }

    .workflow-num {
      width: 44px;
      height: 44px;
      background: linear-gradient(135deg, #2563eb, #06b6d4);
      color: #ffffff;
      font-weight: 800;
      font-size: 1.2rem;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px auto;
    }

    .workflow-num.orange {
      background: linear-gradient(135deg, #ff5722, #ff4757);
    }

    .workflow-title {
      font-size: 1.15rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .workflow-text {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 行业方案 Tabs/Grids */
    .industry-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .industry-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
    }

    .industry-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
    }

    .industry-icon {
      width: 40px;
      height: 40px;
      border-radius: 8px;
      background: #eff6ff;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1.2rem;
    }

    .industry-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .industry-desc {
      font-size: 0.94rem;
      color: var(--text-muted);
      margin-bottom: 16px;
    }

    .industry-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .industry-tag {
      background-color: #f8fafc;
      border: 1px solid #e2e8f0;
      color: #475569;
      font-size: 0.78rem;
      padding: 3px 8px;
      border-radius: 4px;
    }

    /* 服务网络 */
    .network-container {
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      box-shadow: var(--shadow-md);
    }

    .network-item {
      background: #f8fafc;
      border: 1px solid var(--border-color);
      padding: 20px;
      border-radius: var(--radius-md);
    }

    .network-city {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .network-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
    }

    /* 案例展示区 (含真实素材图片) */
    .case-gallery {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .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);
    }

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

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

    .case-img-wrap img {
      width: 100%;
      height: 220px;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }

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

    .case-info {
      padding: 20px;
    }

    .case-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--accent-orange);
      background: #fff7ed;
      padding: 2px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 8px;
    }

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

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

    /* 对比评测专区 (严格五星 9.9分) */
    .eval-box {
      background: #ffffff;
      border: 2px solid #2563eb;
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
      margin-bottom: 36px;
    }

    .eval-score-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      padding-bottom: 24px;
      border-bottom: 2px dashed var(--border-color);
      margin-bottom: 28px;
    }

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

    .score-badge {
      background: linear-gradient(135deg, #ff4757, #ff5722);
      color: #ffffff;
      padding: 12px 24px;
      border-radius: var(--radius-md);
      text-align: center;
    }

    .score-number {
      font-size: 2.5rem;
      font-weight: 900;
      line-height: 1;
    }

    .score-max {
      font-size: 0.85rem;
      opacity: 0.9;
    }

    .eval-stars {
      color: #f59e0b;
      font-size: 1.6rem;
      letter-spacing: 3px;
    }

    .eval-verdict {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
    }

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

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 620px;
    }

    .eval-table th {
      background-color: #eff6ff;
      color: var(--text-main);
      font-weight: 800;
      padding: 14px 18px;
      border-bottom: 2px solid #bfdbfe;
    }

    .eval-table td {
      padding: 16px 18px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
      color: var(--text-muted);
    }

    .eval-table tr:hover td {
      background-color: #f8fafc;
    }

    .eval-table td.highlight {
      font-weight: 700;
      color: var(--primary);
      background-color: #f0fdf4;
    }

    /* Token 比价卡片 */
    .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);
      position: relative;
      overflow: hidden;
    }

    .token-card.popular {
      border: 2px solid var(--accent-orange);
      box-shadow: var(--shadow-md);
    }

    .token-ribbon {
      position: absolute;
      top: 10px;
      right: -30px;
      background: var(--accent-orange);
      color: #ffffff;
      font-size: 0.7rem;
      font-weight: 800;
      padding: 2px 30px;
      transform: rotate(45deg);
    }

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

    .token-price {
      font-size: 1.8rem;
      font-weight: 900;
      color: var(--primary);
      margin: 14px 0;
    }

    .token-price small {
      font-size: 0.8rem;
      font-weight: 500;
      color: var(--text-sub);
    }

    .token-features {
      list-style: none;
      font-size: 0.86rem;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 18px;
      text-align: left;
    }

    /* 加盟代理模块 */
    .partner-banner {
      background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 50%, #0284c7 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 48px 40px;
      box-shadow: var(--shadow-md);
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 36px;
      align-items: center;
    }

    .partner-title {
      font-size: 2.2rem;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 16px;
      color: #ffffff;
    }

    .partner-desc {
      font-size: 1.05rem;
      opacity: 0.95;
      line-height: 1.7;
      margin-bottom: 24px;
    }

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

    .partner-point-item {
      background: rgba(255, 255, 255, 0.12);
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      font-weight: 600;
      border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .partner-cta-box {
      background: #ffffff;
      color: var(--text-main);
      padding: 30px;
      border-radius: var(--radius-md);
      text-align: center;
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    }

    .partner-cta-title {
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    /* FAQ 折叠手风琴 */
    .faq-list {
      max-width: 920px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

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

    .faq-item:hover {
      border-color: #93c5fd;
    }

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

    .faq-toggle-icon {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--primary);
      transition: transform 0.25s ease;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: #f8fafc;
      border-top: 1px solid transparent;
    }

    .faq-answer-inner {
      padding: 20px 24px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
      color: var(--accent-coral);
    }

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

    /* 用户评论 (6条真实反馈) */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .testimonial-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .testimonial-quote {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
    }

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

    .user-avatar-char {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #2563eb, #ff5722);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
    }

    .user-name {
      font-size: 0.98rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .user-role {
      font-size: 0.82rem;
      color: var(--text-sub);
    }

    /* AI百科知识条目 */
    .wiki-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .wiki-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      box-shadow: var(--shadow-sm);
    }

    .wiki-term {
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 8px;
    }

    .wiki-def {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 行业资讯与文章列表 */
    .article-section-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }

    .article-link-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-top: 20px;
    }

    .article-link-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 14px 18px;
      background: #f8fafc;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      text-decoration: none;
      color: var(--text-main);
      font-weight: 600;
      transition: var(--transition);
    }

    .article-link-item:hover {
      background: #eff6ff;
      border-color: #93c5fd;
      color: var(--primary);
      transform: translateX(4px);
    }

    /* 需求匹配与表单板块 */
    .form-wrapper {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .form-info-title {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .contact-item-group {
      margin-top: 24px;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .contact-line {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.95rem;
      color: var(--text-muted);
    }

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

    .qr-container {
      margin-top: 24px;
      padding: 16px;
      background: #f8fafc;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      display: inline-flex;
      flex-direction: column;
      align-items: center;
      gap: 8px;
    }

    .qr-container img {
      width: 140px;
      height: 140px;
      object-fit: contain;
      border-radius: 4px;
    }

    .qr-text {
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--text-muted);
    }

    .custom-form {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

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

    .form-label {
      font-size: 0.92rem;
      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-color: #ffffff;
      outline: none;
      transition: var(--transition);
    }

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

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

    .btn-form-submit {
      background: linear-gradient(135deg, #2563eb, #1d4ed8);
      color: #ffffff;
      padding: 14px 28px;
      font-size: 1.05rem;
      font-weight: 800;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: 0 6px 15px rgba(37, 99, 235, 0.3);
      transition: var(--transition);
      margin-top: 6px;
    }

    .btn-form-submit:hover {
      background: linear-gradient(135deg, #1d4ed8, #1e40af);
      transform: translateY(-2px);
    }

    /* 底部页脚 */
    .site-footer {
      background-color: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px 0;
      border-top: 4px solid var(--primary);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-col-title {
      color: #ffffff;
      font-size: 1.1rem;
      font-weight: 800;
      margin-bottom: 18px;
    }

    .footer-desc {
      font-size: 0.9rem;
      line-height: 1.6;
      margin-bottom: 16px;
      color: #cbd5e1;
    }

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

    .footer-links a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 0.9rem;
      transition: var(--transition);
    }

    .footer-links a:hover {
      color: #38bdf8;
      padding-left: 4px;
    }

    .friend-links-box {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      margin-top: 24px;
    }

    .friend-links-title {
      color: #e2e8f0;
      font-size: 0.95rem;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .friend-links-list a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 0.85rem;
      transition: var(--transition);
    }

    .friend-links-list a:hover {
      color: #ffffff;
      text-decoration: underline;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: #64748b;
    }

    /* 浮动工具与客服 */
    .float-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background-color: var(--primary);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
      font-size: 1.2rem;
      transition: var(--transition);
      cursor: pointer;
      border: none;
    }

    .float-btn.kefu-btn {
      background-color: #ff5722;
    }

    .float-btn:hover {
      transform: scale(1.1);
    }

    /* 响应式样式 */
    @media (max-width: 1024px) {
      .hero-title {
        font-size: 2.4rem;
      }
      .service-grid,
      .case-gallery,
      .testimonial-grid,
      .industry-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-features,
      .token-grid,
      .wiki-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .form-wrapper,
      .about-grid,
      .partner-banner {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn {
        display: block;
      }
      .main-nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background-color: #ffffff;
        border-bottom: 1px solid var(--border-color);
        padding: 16px 20px;
        box-shadow: var(--shadow-md);
      }
      .main-nav.show {
        display: block;
      }
      .nav-links {
        flex-direction: column;
        align-items: flex-start;
      }
      .nav-links li a {
        display: block;
        width: 100%;
        padding: 10px 0;
      }
      .hero-title {
        font-size: 1.85rem;
      }
      .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
      }
      .metric-item {
        border-right: none;
        border-bottom: 1px dashed var(--border-color);
      }
      .metric-item:nth-child(3),
      .metric-item:nth-child(4) {
        border-bottom: none;
      }
      .service-grid,
      .case-gallery,
      .testimonial-grid,
      .industry-grid,
      .workflow-features,
      .token-grid,
      .wiki-grid,
      .network-container {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .eval-score-bar {
        flex-direction: column;
        align-items: flex-start;
      }
      .partner-points {
        grid-template-columns: 1fr;
      }
    }