/* 全局变量与亮橙炽艳设计规范 */
    :root {
      --primary: #ff5500;
      --primary-hover: #e04a00;
      --primary-light: #fff3ec;
      --primary-gradient: linear-gradient(135deg, #ff6b00 0%, #ff3b00 100%);
      --accent-warm: #ff8533;
      --accent-glow: rgba(255, 85, 0, 0.18);
      
      --bg-page: #faf8f5;
      --bg-card: #ffffff;
      --bg-card-alt: #fdfaf6;
      --bg-dark: #1f1b18;
      
      --text-main: #211c18;
      --text-muted: #5e5751;
      --text-light: #948b83;
      --text-white: #ffffff;
      
      --border-color: #f0e6dd;
      --border-focus: #ff6b00;
      
      --shadow-sm: 0 2px 8px rgba(33, 28, 24, 0.04);
      --shadow-md: 0 8px 24px rgba(255, 85, 0, 0.08);
      --shadow-lg: 0 16px 36px rgba(255, 85, 0, 0.12);
      
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      
      --container-max: 1200px;
    }

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

    html {
      scroll-behavior: smooth;
      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-main);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
      background: linear-gradient(180deg, #fffaf5 0%, #faf8f5 400px, #fdf8f4 100%);
      min-height: 100vh;
    }

    /* 通用容器规范 */
    .container {
      width: 100%;
      max-width: var(--container-max);
      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: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 12px rgba(255, 85, 0, 0.04);
    }

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

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

    .brand-area .ai-page-logo {
      height: 38px;
      width: auto;
      display: block;
    }

    .brand-text {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }

    .nav-links a {
      color: var(--text-main);
      text-decoration: none;
      font-weight: 600;
      font-size: 14px;
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      transition: all 0.2s ease;
      display: inline-block;
    }

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

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

    .btn-nav-primary {
      background: var(--primary-gradient);
      color: #ffffff !important;
      padding: 9px 20px;
      border-radius: var(--radius-full);
      font-weight: 700;
      font-size: 14px;
      text-decoration: none;
      box-shadow: 0 4px 14px rgba(255, 85, 0, 0.25);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .btn-nav-primary:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 18px rgba(255, 85, 0, 0.35);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 8px 10px;
      font-size: 18px;
      cursor: pointer;
      color: var(--text-main);
    }

    /* 区域通用样式 */
    .section-wrap {
      padding: 80px 0;
      position: relative;
    }

    .section-wrap-alt {
      background: linear-gradient(180deg, #fffcf9 0%, #fbf4ee 100%);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px auto;
    }

    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      background: var(--primary-light);
      color: var(--primary);
      font-weight: 700;
      font-size: 13px;
      border-radius: var(--radius-full);
      margin-bottom: 12px;
      border: 1px solid rgba(255, 85, 0, 0.2);
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
      line-height: 1.3;
    }

    .section-subtitle {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 首屏 HERO 纯CSS设计 (无图片规范) */
    .hero-section {
      padding: 70px 0 60px 0;
      position: relative;
      overflow: hidden;
      background: radial-gradient(circle at 80% 20%, rgba(255, 107, 0, 0.08) 0%, transparent 60%),
                  radial-gradient(circle at 20% 80%, rgba(255, 133, 51, 0.06) 0%, transparent 60%);
    }

    .hero-inner {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }

    .hero-content {
      position: relative;
      z-index: 2;
    }

    .hero-badge-wrap {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      background: #ffffff;
      border: 1px solid #ffd8c2;
      border-radius: var(--radius-full);
      box-shadow: 0 2px 10px rgba(255, 85, 0, 0.06);
      margin-bottom: 20px;
    }

    .hero-badge-pulse {
      width: 8px;
      height: 8px;
      background: #ff5500;
      border-radius: 50%;
      box-shadow: 0 0 0 0 rgba(255, 85, 0, 0.7);
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(255, 85, 0, 0.7); }
      70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(255, 85, 0, 0); }
      100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(255, 85, 0, 0); }
    }

    .hero-badge-text {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
    }

    .hero-title {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 18px;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      color: var(--primary);
      position: relative;
    }

    .hero-desc {
      font-size: 17px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 30px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      margin-bottom: 32px;
    }

    .btn-hero-official {
      background: var(--primary-gradient);
      color: #ffffff;
      font-size: 16px;
      font-weight: 800;
      padding: 14px 32px;
      border-radius: var(--radius-full);
      text-decoration: none;
      box-shadow: 0 8px 24px rgba(255, 85, 0, 0.3);
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .btn-hero-official:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(255, 85, 0, 0.4);
    }

    .btn-hero-outline {
      background: #ffffff;
      color: var(--text-main);
      border: 1px solid var(--border-color);
      font-size: 15px;
      font-weight: 700;
      padding: 14px 26px;
      border-radius: var(--radius-full);
      text-decoration: none;
      box-shadow: var(--shadow-sm);
      transition: all 0.2s ease;
    }

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

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      padding-top: 20px;
      border-top: 1px dashed var(--border-color);
    }

    .metric-item-val {
      font-size: 24px;
      font-weight: 900;
      color: var(--primary);
    }

    .metric-item-lbl {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 首屏右侧纯CSS科技展板 (无图) */
    .hero-tech-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid #fedbc8;
      box-shadow: var(--shadow-lg);
      padding: 28px;
      position: relative;
    }

    .hero-tech-head {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
      padding-bottom: 14px;
      border-bottom: 1px solid var(--border-color);
    }

    .tech-pill {
      background: #fff0e6;
      color: var(--primary);
      font-size: 12px;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: var(--radius-full);
    }

    .tech-status-dot {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      color: #10b981;
      font-weight: 600;
    }

    .tech-status-dot::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #10b981;
    }

    .hero-engine-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
      margin-bottom: 20px;
    }

    .engine-chip {
      background: var(--bg-card-alt);
      border: 1px solid #f3e5d8;
      padding: 12px;
      border-radius: var(--radius-md);
      transition: all 0.2s ease;
    }

    .engine-chip:hover {
      border-color: var(--primary);
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }

    .engine-chip-title {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .engine-chip-desc {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.4;
    }

    .hero-tech-foot {
      background: linear-gradient(135deg, #fff7f2 0%, #ffeedd 100%);
      padding: 14px;
      border-radius: var(--radius-md);
      border: 1px solid #fcd5be;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .tech-foot-text {
      font-size: 13px;
      font-weight: 700;
      color: #8c3b00;
    }

    .tech-foot-tag {
      background: #ff5500;
      color: #ffffff;
      font-size: 11px;
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 700;
    }

    /* 平台支持模型标签流 */
    .model-marquee-section {
      background: #ffffff;
      padding: 24px 0;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .marquee-label {
      text-align: center;
      font-size: 13px;
      color: var(--text-light);
      font-weight: 700;
      letter-spacing: 1px;
      margin-bottom: 16px;
      text-transform: uppercase;
    }

    .model-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }

    .model-tag {
      background: #faf4ef;
      border: 1px solid #eddcd0;
      color: #4a4038;
      font-size: 12px;
      font-weight: 600;
      padding: 5px 12px;
      border-radius: var(--radius-full);
      transition: all 0.2s ease;
    }

    .model-tag:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
    }

    /* 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: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }

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

    .about-feature-item {
      display: flex;
      gap: 12px;
      align-items: flex-start;
    }

    .feature-icon-bullet {
      width: 20px;
      height: 20px;
      background: #ff5500;
      color: #fff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      font-weight: 900;
      flex-shrink: 0;
      margin-top: 3px;
    }

    .feature-text-main {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }

    .feature-text-sub {
      font-size: 13px;
      color: var(--text-muted);
      margin-top: 2px;
    }

    /* 服务与核心应用场景 (网格卡片) */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
      position: relative;
      overflow: hidden;
    }

    .service-card:hover {
      border-color: #ffaa80;
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .service-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: var(--primary);
      opacity: 0;
      transition: opacity 0.2s ease;
    }

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

    .service-icon-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 800;
      color: var(--primary);
      background: var(--primary-light);
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
    }

    .service-card-title {
      font-size: 18px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .service-card-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 一站式制作工作流 */
    .workflow-timeline {
      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-badge {
      width: 44px;
      height: 44px;
      background: var(--primary-gradient);
      color: #fff;
      font-size: 18px;
      font-weight: 900;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px auto;
      box-shadow: 0 4px 12px rgba(255, 85, 0, 0.25);
    }

    .step-card-title {
      font-size: 16px;
      font-weight: 800;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .step-card-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 对比评测卡片与表格 */
    .eval-highlight-box {
      background: linear-gradient(135deg, #fff5ed 0%, #ffe9dc 100%);
      border: 1px solid #ffd2be;
      border-radius: var(--radius-lg);
      padding: 30px;
      margin-bottom: 30px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
    }

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

    .score-circle {
      width: 76px;
      height: 76px;
      background: var(--primary-gradient);
      border-radius: 50%;
      color: #fff;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      box-shadow: 0 6px 18px rgba(255, 85, 0, 0.3);
    }

    .score-circle-num {
      font-size: 24px;
      line-height: 1;
    }

    .score-circle-total {
      font-size: 10px;
      opacity: 0.9;
    }

    .eval-rating-info h3 {
      font-size: 20px;
      font-weight: 800;
      color: #2b1f16;
      margin-bottom: 4px;
    }

    .eval-stars {
      color: #ff9800;
      font-size: 16px;
      letter-spacing: 2px;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }

    .compare-table th {
      background: #fdf5ef;
      padding: 16px 20px;
      font-weight: 800;
      color: var(--text-main);
      border-bottom: 2px solid #fedbc8;
    }

    .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      color: var(--text-muted);
    }

    .compare-table tr:hover td {
      background: #fffcf9;
    }

    .compare-table .highlight-col {
      background: #fff8f3;
      color: var(--primary);
      font-weight: 700;
    }

    .compare-table tr:hover .highlight-col {
      background: #fff2e8;
    }

    /* 案例中心展示 (带图片) */
    .cases-grid {
      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: all 0.25s ease;
    }

    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #ffb38a;
    }

    .case-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #f3ece5;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.3s ease;
    }

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

    .case-content {
      padding: 20px;
    }

    .case-title {
      font-size: 16px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .case-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* Banner 宣传栏 */
    .banner-strip {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-top: 30px;
    }

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

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

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

    .token-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: all 0.2s ease;
    }

    .token-card.featured {
      border: 2px solid var(--primary);
      background: #fffaf6;
      transform: scale(1.02);
      box-shadow: var(--shadow-md);
      position: relative;
    }

    .token-card-tag {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary);
      color: #ffffff;
      font-size: 11px;
      font-weight: 800;
      padding: 3px 12px;
      border-radius: var(--radius-full);
    }

    .token-model-name {
      font-size: 18px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .token-price {
      font-size: 26px;
      font-weight: 900;
      color: var(--primary);
      margin-bottom: 6px;
    }

    .token-price span {
      font-size: 12px;
      font-weight: normal;
      color: var(--text-muted);
    }

    .token-official-price {
      font-size: 12px;
      color: var(--text-light);
      text-decoration: line-through;
      margin-bottom: 16px;
    }

    .token-features {
      list-style: none;
      font-size: 13px;
      color: var(--text-muted);
      line-height: 2;
      border-top: 1px dashed var(--border-color);
      padding-top: 14px;
    }

    /* 用户评论卡片 (6条用户评论) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .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-quote {
      font-size: 14px;
      color: var(--text-main);
      line-height: 1.6;
      margin-bottom: 20px;
      position: relative;
    }

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

    .user-avatar-initial {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 15px;
      border: 1px solid #ffd2be;
    }

    .user-meta-name {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }

    .user-meta-role {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 行业方案与百科标签 */
    .solution-tabs-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

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

    .sol-card h4 {
      font-size: 17px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .sol-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 加盟代理与被动收入专区 */
    .partner-banner {
      background: linear-gradient(135deg, #2b221a 0%, #1f1813 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 30px;
      align-items: center;
      box-shadow: var(--shadow-md);
    }

    .partner-title {
      font-size: 28px;
      font-weight: 900;
      color: #ffffff;
      margin-bottom: 12px;
    }

    .partner-title span {
      color: #ff7828;
    }

    .partner-desc {
      font-size: 15px;
      color: #dfd5cb;
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .partner-points {
      list-style: none;
      display: grid;
      gap: 10px;
    }

    .partner-point-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: #f7ebe1;
    }

    .partner-point-icon {
      color: #ff7828;
      font-weight: 900;
    }

    .partner-cta-card {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      backdrop-filter: blur(8px);
    }

    .partner-cta-card h4 {
      font-size: 18px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 8px;
    }

    .partner-cta-card p {
      font-size: 13px;
      color: #d1c4b7;
      margin-bottom: 18px;
    }

    /* FAQ 手风琴面板 (不少于10条) */
    .faq-accordion-wrap {
      max-width: 860px;
      margin: 0 auto;
      display: grid;
      gap: 12px;
    }

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

    .faq-item:hover {
      border-color: #ffd0b8;
    }

    .faq-question {
      width: 100%;
      text-align: left;
      background: none;
      border: none;
      padding: 18px 22px;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      outline: none;
    }

    .faq-toggle-icon {
      font-size: 18px;
      font-weight: 700;
      color: var(--primary);
      transition: transform 0.25s ease;
      flex-shrink: 0;
      margin-left: 12px;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fffcf9;
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.6;
      padding: 0 22px;
    }

    .faq-item.active .faq-answer {
      padding: 0 22px 18px 22px;
      max-height: 200px;
      border-top: 1px solid #faece1;
    }

    /* 表单与联系区 */
    .contact-form-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 36px;
      align-items: start;
    }

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

    .form-group {
      margin-bottom: 18px;
    }

    .form-label {
      display: block;
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-input,
    .form-select,
    .form-textarea {
      width: 100%;
      padding: 12px 14px;
      font-size: 14px;
      border: 1px solid #dfd5cb;
      border-radius: var(--radius-sm);
      background: #ffffff;
      color: var(--text-main);
      outline: none;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
      font-family: inherit;
    }

    .form-input:focus,
    .form-select:focus,
    .form-textarea:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(255, 85, 0, 0.12);
    }

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

    .btn-submit-form {
      width: 100%;
      background: var(--primary-gradient);
      color: #ffffff;
      border: none;
      padding: 14px;
      font-size: 16px;
      font-weight: 800;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: 0 6px 18px rgba(255, 85, 0, 0.25);
      transition: all 0.2s ease;
    }

    .btn-submit-form:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 22px rgba(255, 85, 0, 0.35);
    }

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

    .contact-info-title {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 18px;
    }

    .contact-item-row {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
      font-size: 14px;
      color: var(--text-muted);
    }

    .contact-item-row strong {
      color: var(--text-main);
      min-width: 70px;
    }

    .qr-showcase {
      margin-top: 24px;
      padding: 16px;
      background: #fff9f5;
      border: 1px dashed #fed7c3;
      border-radius: var(--radius-md);
      text-align: center;
    }

    .qr-showcase img {
      max-width: 140px;
      height: auto;
      border-radius: var(--radius-sm);
      display: block;
      margin: 0 auto 8px auto;
      border: 1px solid #f0decb;
    }

    .qr-showcase p {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
    }

    /* 行业资讯与文章动态 */
    .articles-block {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      margin-bottom: 24px;
    }

    .articles-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      list-style: none;
      margin-top: 14px;
    }

    .articles-links-list a {
      color: var(--primary);
      text-decoration: none;
      font-size: 14px;
      background: var(--primary-light);
      padding: 6px 14px;
      border-radius: var(--radius-full);
      border: 1px solid #ffd4be;
      transition: all 0.2s ease;
    }

    .articles-links-list a:hover {
      background: var(--primary);
      color: #fff;
    }

    /* 友情链接 */
    .friendly-links-wrap {
      padding: 20px 0;
      border-top: 1px solid var(--border-color);
      font-size: 13px;
      color: var(--text-muted);
    }

    .friendly-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-top: 8px;
    }

    .friendly-links-list a {
      color: var(--text-muted);
      text-decoration: none;
      transition: color 0.2s ease;
    }

    .friendly-links-list a:hover {
      color: var(--primary);
    }

    /* 页脚 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 40px 0 30px 0;
      color: var(--text-muted);
      font-size: 13px;
    }

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

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .footer-copy {
      color: var(--text-light);
    }

    /* 悬浮工具组件 (客服与返回顶部) */
    .floating-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: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      cursor: pointer;
      color: var(--primary);
      text-decoration: none;
      transition: all 0.2s ease;
    }

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

    .float-btn-top {
      display: none;
    }

    /* 响应式适配规范 */
    @media (max-width: 992px) {
      .hero-inner {
        grid-template-columns: 1fr;
      }
      .about-grid {
        grid-template-columns: 1fr;
      }
      .services-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .cases-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .token-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .reviews-grid {
        grid-template-columns: 1fr;
      }
      .partner-banner {
        grid-template-columns: 1fr;
      }
      .contact-form-grid {
        grid-template-columns: 1fr;
      }
      .banner-strip {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links a {
        width: 100%;
        padding: 10px 0;
      }
      .hero-title {
        font-size: 30px;
      }
      .section-title {
        font-size: 24px;
      }
      .services-grid,
      .cases-grid,
      .token-grid,
      .workflow-timeline,
      .solution-tabs-grid {
        grid-template-columns: 1fr;
      }
      .hero-metrics {
        grid-template-columns: 1fr;
      }
      .eval-highlight-box {
        flex-direction: column;
        text-align: center;
      }
      .eval-score-wrap {
        flex-direction: column;
      }
      .footer-inner {
        flex-direction: column;
        text-align: center;
      }
    }