:root {
      --primary: #4f46e5;
      --primary-light: #6366f1;
      --secondary: #06b6d4;
      --accent-pink: #ec4899;
      --accent-amber: #f59e0b;
      --accent-emerald: #10b981;
      --rainbow-gradient: linear-gradient(135deg, #4f46e5 0%, #06b6d4 25%, #10b981 50%, #f59e0b 75%, #ec4899 100%);
      --rainbow-soft: linear-gradient(135deg, rgba(79,70,229,0.08) 0%, rgba(6,182,212,0.08) 25%, rgba(16,185,129,0.08) 50%, rgba(245,158,11,0.08) 75%, rgba(236,72,153,0.08) 100%);
      --bg-page: #fafbfc;
      --bg-card: #ffffff;
      --border-color: #e5e7eb;
      --text-main: #1f2937;
      --text-muted: #4b5563;
      --text-light: #6b7280;
      --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
      --shadow-md: 0 8px 24px rgba(79,70,229,0.07);
      --shadow-lg: 0 16px 36px rgba(79,70,229,0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --container-max: 1200px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      background-image: 
        radial-gradient(at 0% 0%, rgba(79,70,229,0.04) 0px, transparent 50%),
        radial-gradient(at 100% 10%, rgba(6,182,212,0.04) 0px, transparent 50%),
        radial-gradient(at 50% 50%, rgba(236,72,153,0.03) 0px, transparent 50%),
        radial-gradient(at 10% 90%, rgba(16,185,129,0.03) 0px, transparent 50%);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部彩虹装饰线条 */
    .rainbow-top-bar {
      height: 4px;
      width: 100%;
      background: var(--rainbow-gradient);
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      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;
    }

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

    .brand-wrap .ai-page-logo {
      height: 40px;
      width: auto;
      display: block;
    }

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

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

    .nav-links a {
      font-size: 14.5px;
      font-weight: 500;
      color: var(--text-muted);
      padding: 8px 12px;
      border-radius: 6px;
    }

    .nav-links a:hover, .nav-links a.active {
      color: var(--primary);
      background: rgba(79,70,229,0.06);
    }

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

    .btn-portal {
      background: var(--rainbow-gradient);
      color: #ffffff !important;
      font-weight: 600;
      padding: 9px 18px;
      border-radius: 50px;
      font-size: 14px;
      box-shadow: 0 4px 14px rgba(79,70,229,0.3);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .btn-portal:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(79,70,229,0.4);
    }

    .menu-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      border-radius: 6px;
      padding: 6px 10px;
      cursor: pointer;
      font-size: 18px;
    }

    /* 区块通用样式 */
    .section-wrap {
      padding: 72px 0;
      position: relative;
    }

    .section-wrap.alt-bg {
      background-color: #f6f8fb;
      border-top: 1px solid #edf0f5;
      border-bottom: 1px solid #edf0f5;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 48px;
    }

    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 1px;
      text-transform: uppercase;
      padding: 4px 14px;
      border-radius: 50px;
      background: var(--rainbow-soft);
      color: var(--primary);
      margin-bottom: 14px;
      border: 1px solid rgba(79,70,229,0.15);
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: #111827;
      line-height: 1.35;
      margin-bottom: 12px;
    }

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

    /* 首屏 Hero - 无图片 pure CSS */
    .hero-section {
      padding: 70px 0 60px;
      position: relative;
      overflow: hidden;
      background: radial-gradient(circle at 50% 20%, rgba(79,70,229,0.06) 0%, rgba(6,182,212,0.04) 40%, transparent 80%);
    }

    .hero-content {
      text-align: center;
      max-width: 880px;
      margin: 0 auto;
    }

    .hero-badge-wrap {
      margin-bottom: 22px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: #ffffff;
      border: 1px solid #e0e7ff;
      border-radius: 50px;
      box-shadow: var(--shadow-sm);
    }

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

    @keyframes pulse {
      0% { transform: scale(0.95); opacity: 0.8; }
      50% { transform: scale(1.3); opacity: 1; }
      100% { transform: scale(0.95); opacity: 0.8; }
    }

    .hero-badge-text {
      font-size: 13.5px;
      font-weight: 600;
      color: #374151;
    }

    .hero-title {
      font-size: 42px;
      line-height: 1.25;
      font-weight: 900;
      color: #111827;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      background: var(--rainbow-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 18px;
      color: #4b5563;
      margin-bottom: 34px;
      line-height: 1.7;
      max-width: 720px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-cta-group {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 44px;
    }

    .btn-main-hero {
      background: var(--rainbow-gradient);
      color: #ffffff !important;
      font-size: 17px;
      font-weight: 700;
      padding: 14px 34px;
      border-radius: 50px;
      box-shadow: 0 8px 24px rgba(79,70,229,0.35);
      border: none;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .btn-main-hero:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 0 12px 28px rgba(79,70,229,0.45);
    }

    .btn-outline-hero {
      background: #ffffff;
      color: var(--primary) !important;
      font-size: 17px;
      font-weight: 600;
      padding: 14px 30px;
      border-radius: 50px;
      border: 1.5px solid #c7d2fe;
      box-shadow: var(--shadow-sm);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .btn-outline-hero:hover {
      background: #f5f7ff;
      border-color: var(--primary);
    }

    /* 纯CSS首屏科技感数据看板面板 */
    .hero-dashboard-preview {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-lg);
      padding: 24px;
      max-width: 940px;
      margin: 0 auto;
      text-align: left;
      position: relative;
    }

    .hero-board-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid #f1f5f9;
      padding-bottom: 14px;
      margin-bottom: 18px;
    }

    .board-dots {
      display: flex;
      gap: 6px;
    }

    .board-dots span {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #e2e8f0;
    }

    .board-dots span:nth-child(1) { background: #ef4444; }
    .board-dots span:nth-child(2) { background: #f59e0b; }
    .board-dots span:nth-child(3) { background: #10b981; }

    .board-title {
      font-size: 12.5px;
      font-weight: 600;
      color: #64748b;
      letter-spacing: 0.5px;
    }

    .hero-board-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }

    .board-metric-card {
      background: #f8fafc;
      border: 1px solid #f1f5f9;
      border-radius: var(--radius-md);
      padding: 16px;
      transition: all 0.25s ease;
    }

    .board-metric-card:hover {
      background: #ffffff;
      border-color: #cbd5e1;
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }

    .metric-label {
      font-size: 13px;
      color: #64748b;
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .metric-value {
      font-size: 24px;
      font-weight: 800;
      color: #0f172a;
      line-height: 1.2;
    }

    .metric-desc {
      font-size: 12px;
      color: #10b981;
      font-weight: 500;
      margin-top: 4px;
    }

    /* 滚动模型标签栏 */
    .model-badge-strip {
      margin-top: 26px;
      padding-top: 20px;
      border-top: 1px dashed #e2e8f0;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
    }

    .model-badge-tip {
      font-size: 12px;
      font-weight: 700;
      color: #64748b;
      margin-right: 4px;
    }

    .model-tag {
      font-size: 12px;
      padding: 3px 10px;
      border-radius: 6px;
      background: #f1f5f9;
      color: #334155;
      font-weight: 500;
      border: 1px solid #e2e8f0;
    }

    .model-tag.highlight {
      background: rgba(79,70,229,0.08);
      color: var(--primary);
      border-color: rgba(79,70,229,0.2);
    }

    /* 平台介绍网格 */
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }

    .intro-text h3 {
      font-size: 26px;
      font-weight: 800;
      margin-bottom: 16px;
      color: #111827;
      line-height: 1.4;
    }

    .intro-text p {
      font-size: 15.5px;
      color: #4b5563;
      margin-bottom: 22px;
      line-height: 1.7;
    }

    .intro-check-list {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-bottom: 28px;
    }

    .intro-check-list li {
      font-size: 14px;
      font-weight: 600;
      color: #374151;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .check-icon {
      width: 18px;
      height: 18px;
      background: #10b981;
      color: #fff;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      flex-shrink: 0;
    }

    .intro-media-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 16px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }

    .intro-media-card img {
      width: 100%;
      height: auto;
      border-radius: var(--radius-md);
      display: block;
      object-fit: cover;
    }

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

    .service-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      height: 100%;
      box-shadow: var(--shadow-sm);
    }

    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #cbd5e1;
    }

    .service-badge {
      display: inline-block;
      font-size: 11.5px;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 4px;
      background: #f3f4f6;
      color: #4b5563;
      align-self: flex-start;
      margin-bottom: 12px;
    }

    .service-badge.color-1 { background: rgba(79,70,229,0.1); color: var(--primary); }
    .service-badge.color-2 { background: rgba(6,182,212,0.1); color: #0891b2; }
    .service-badge.color-3 { background: rgba(236,72,153,0.1); color: #db2777; }
    .service-badge.color-4 { background: rgba(16,185,129,0.1); color: #059669; }

    .service-card h4 {
      font-size: 18px;
      font-weight: 700;
      color: #111827;
      margin-bottom: 8px;
    }

    .service-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 16px;
    }

    .service-link {
      font-size: 13.5px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .service-link:hover {
      text-decoration: underline;
    }

    /* 一站式制作工作流 */
    .flow-steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

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

    .flow-step-num {
      width: 44px;
      height: 44px;
      line-height: 44px;
      background: var(--rainbow-gradient);
      color: #fff;
      font-weight: 800;
      border-radius: 50%;
      margin: 0 auto 16px;
      font-size: 18px;
      box-shadow: 0 4px 10px rgba(79,70,229,0.25);
    }

    .flow-step-box h4 {
      font-size: 16.5px;
      font-weight: 700;
      color: #111827;
      margin-bottom: 8px;
    }

    .flow-step-box p {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 行业解决方案画廊 */
    .banner-gallery-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 36px;
    }

    .banner-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }

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

    .banner-card-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: #f1f5f9;
    }

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

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

    .banner-info {
      padding: 16px;
    }

    .banner-info h5 {
      font-size: 15px;
      font-weight: 700;
      color: #111827;
      margin-bottom: 4px;
    }

    .banner-info p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.4;
    }

    /* 对比评测表格 */
    .eval-card-container {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      overflow: hidden;
    }

    .eval-badge-header {
      background: var(--rainbow-gradient);
      padding: 24px 30px;
      color: #ffffff;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
    }

    .eval-badge-header h3 {
      font-size: 22px;
      font-weight: 800;
    }

    .score-summary-pill {
      background: rgba(255,255,255,0.2);
      backdrop-filter: blur(8px);
      padding: 8px 20px;
      border-radius: 50px;
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 700;
      font-size: 15px;
    }

    .score-highlight {
      font-size: 22px;
      color: #fef08a;
    }

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

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 640px;
    }

    .eval-table th, .eval-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #f1f5f9;
      font-size: 14px;
    }

    .eval-table th {
      background: #f8fafc;
      font-weight: 700;
      color: #334155;
    }

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

    .cell-jx {
      background: rgba(79,70,229,0.03);
      font-weight: 700;
      color: var(--primary);
    }

    .status-check {
      color: #10b981;
      font-weight: 700;
    }

    .status-cross {
      color: #94a3b8;
    }

    /* Token 比价网格 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .token-item-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .token-item-card.promoted {
      border: 2px solid var(--primary);
      position: relative;
    }

    .promoted-tag {
      position: absolute;
      top: -10px;
      right: 16px;
      background: var(--rainbow-gradient);
      color: #ffffff;
      font-size: 11px;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 700;
    }

    .token-head {
      display: flex;
      justify-content: space-between;
      align-items: baseline;
      margin-bottom: 12px;
    }

    .token-head h4 {
      font-size: 17px;
      font-weight: 800;
      color: #111827;
    }

    .token-rate {
      font-size: 20px;
      font-weight: 800;
      color: #e11d48;
    }

    .token-official {
      font-size: 12px;
      color: #94a3b8;
      text-decoration: line-through;
    }

    .token-specs {
      list-style: none;
      font-size: 13px;
      color: #4b5563;
      margin-bottom: 16px;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    /* 客户评论卡片 */
    .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: 14.5px;
      color: #374151;
      line-height: 1.6;
      margin-bottom: 18px;
      font-style: italic;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }

    .avatar-placeholder {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--rainbow-gradient);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 15px;
      flex-shrink: 0;
    }

    .author-info h5 {
      font-size: 14px;
      font-weight: 700;
      color: #111827;
    }

    .author-info span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* FAQ 手风琴 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.25s ease;
    }

    .faq-item.active {
      border-color: #c7d2fe;
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      padding: 18px 22px;
      cursor: pointer;
      font-size: 16px;
      font-weight: 700;
      color: #1f2937;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-icon {
      font-size: 20px;
      font-weight: 400;
      transition: transform 0.25s ease;
      color: var(--primary);
    }

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

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

    .faq-item.active .faq-answer {
      max-height: 200px;
      padding-top: 10px;
      padding-bottom: 20px;
      border-top: 1px solid #f1f5f9;
    }

    .faq-answer p {
      font-size: 14.5px;
      color: #4b5563;
      line-height: 1.6;
    }

    /* 需求表单与联系我们板块 */
    .contact-block-wrap {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 36px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

    .contact-sidebar-info h3 {
      font-size: 24px;
      font-weight: 800;
      color: #111827;
      margin-bottom: 12px;
    }

    .contact-sidebar-info p {
      font-size: 14.5px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 24px;
    }

    .contact-meta-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-bottom: 26px;
    }

    .contact-meta-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 14px;
      color: #374151;
    }

    .meta-badge {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      background: #f1f5f9;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      color: var(--primary);
      font-weight: 700;
    }

    .qrcode-box {
      border: 1px solid #e5e7eb;
      border-radius: var(--radius-md);
      padding: 16px;
      width: 170px;
      text-align: center;
      background: #f9fafb;
    }

    .qrcode-box img {
      width: 138px;
      height: 138px;
      object-fit: cover;
      display: block;
      margin: 0 auto 8px;
      border-radius: 4px;
    }

    .qrcode-box span {
      font-size: 12px;
      color: #6b7280;
      font-weight: 600;
    }

    .form-box {
      background: #fafbfc;
      padding: 28px;
      border-radius: var(--radius-md);
      border: 1px solid #edf0f5;
    }

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

    .form-group label {
      display: block;
      font-size: 13.5px;
      font-weight: 700;
      color: #374151;
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 11px 14px;
      border: 1px solid #d1d5db;
      border-radius: var(--radius-sm);
      font-size: 14px;
      background: #ffffff;
      outline: none;
      transition: border-color 0.2s ease;
      color: #111827;
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(79,70,229,0.15);
    }

    .form-submit-btn {
      width: 100%;
      background: var(--rainbow-gradient);
      color: #ffffff;
      font-size: 16px;
      font-weight: 700;
      padding: 13px;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(79,70,229,0.3);
      transition: all 0.25s ease;
      margin-top: 6px;
    }

    .form-submit-btn:hover {
      opacity: 0.95;
      transform: translateY(-2px);
    }

    /* 文章与资讯链接 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .article-item-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }

    .article-item-card:hover {
      border-color: #c7d2fe;
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
    }

    .article-item-card h4 {
      font-size: 16px;
      font-weight: 700;
      color: #111827;
      margin-bottom: 8px;
      line-height: 1.4;
    }

    .article-item-card p {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.5;
      margin-bottom: 12px;
    }

    .article-link-out {
      font-size: 13px;
      color: var(--primary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 友情链接与页脚 */
    .links-strip-section {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 32px 0;
    }

    .links-title {
      font-size: 14px;
      font-weight: 700;
      color: #374151;
      margin-bottom: 12px;
    }

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

    .friend-links-box a {
      font-size: 13.5px;
      color: #4b5563;
      padding: 4px 10px;
      background: #f8fafc;
      border-radius: 4px;
      border: 1px solid #e2e8f0;
    }

    .friend-links-box a:hover {
      color: var(--primary);
      border-color: #cbd5e1;
      background: #fff;
    }

    .site-footer {
      background: #f8fafc;
      border-top: 1px solid #e2e8f0;
      padding: 44px 0 32px;
      color: #4b5563;
    }

    .footer-inner-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 32px;
    }

    .footer-desc-col p {
      font-size: 14px;
      line-height: 1.6;
      margin-top: 12px;
      max-width: 440px;
    }

    .footer-links-col h5 {
      font-size: 15px;
      font-weight: 700;
      color: #111827;
      margin-bottom: 14px;
    }

    .footer-links-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-links-col a {
      font-size: 13.5px;
      color: #4b5563;
    }

    .footer-links-col a:hover {
      color: var(--primary);
    }

    .footer-bottom-bar {
      border-top: 1px solid #edf0f5;
      padding-top: 22px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 13px;
      color: #64748b;
    }

    /* 浮动客服挂件 */
    .float-service-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 12px rgba(0,0,0,0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--primary);
      font-size: 18px;
      transition: all 0.25s ease;
      position: relative;
    }

    .float-btn:hover {
      transform: scale(1.08);
      border-color: var(--primary);
      background: #f8fafc;
    }

    .float-qr-popup {
      position: absolute;
      right: 58px;
      bottom: 0;
      background: #ffffff;
      padding: 14px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      border: 1px solid #e2e8f0;
      display: none;
      width: 160px;
      text-align: center;
    }

    .float-btn:hover .float-qr-popup {
      display: block;
    }

    .float-qr-popup img {
      width: 130px;
      height: 130px;
      display: block;
      margin: 0 auto 6px;
    }

    .float-qr-popup span {
      font-size: 11px;
      color: #64748b;
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .services-grid, .token-grid, .reviews-grid, .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .banner-gallery-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-board-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .nav-menu-box {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        padding: 16px 20px;
        box-shadow: var(--shadow-md);
      }
      .nav-menu-box.active {
        display: block;
      }
      .nav-links {
        flex-direction: column;
        align-items: flex-start;
      }
      .nav-links a {
        width: 100%;
        padding: 10px 0;
      }
      .menu-toggle {
        display: block;
      }
      .hero-title {
        font-size: 30px;
      }
      .hero-desc {
        font-size: 15px;
      }
      .services-grid, .token-grid, .reviews-grid, .articles-grid, .banner-gallery-grid, .flow-steps-grid, .hero-board-grid {
        grid-template-columns: 1fr;
      }
      .intro-grid, .contact-block-wrap, .footer-inner-grid {
        grid-template-columns: 1fr;
      }
      .intro-check-list {
        grid-template-columns: 1fr;
      }
      .section-wrap {
        padding: 48px 0;
      }
      .float-service-widget {
        right: 12px;
        bottom: 20px;
      }
    }