:root {
      --primary: #2563eb;
      --primary-hover: #1d4ed8;
      --secondary: #7c3aed;
      --accent-rose: #f43f5e;
      --accent-emerald: #10b981;
      --accent-amber: #f59e0b;
      --accent-cyan: #06b6d4;
      --bg-page: #fbfbfe;
      --surface-white: #ffffff;
      --surface-tint: #f4f7fe;
      --border-color: #e2e8f0;
      --border-bright: #cbd5e1;
      --text-main: #0f172a;
      --text-muted: #334155;
      --text-sub: #64748b;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.05);
      --shadow-md: 0 10px 25px -5px rgba(37, 99, 235, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      --shadow-lg: 0 20px 35px -5px rgba(124, 58, 237, 0.12), 0 10px 15px -5px rgba(15, 23, 42, 0.05);
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      background-image: 
        radial-gradient(circle at 10% 10%, rgba(37, 99, 235, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 20%, rgba(244, 63, 94, 0.04) 0%, transparent 35%),
        radial-gradient(circle at 50% 55%, rgba(124, 58, 237, 0.04) 0%, transparent 45%),
        radial-gradient(circle at 20% 85%, rgba(16, 185, 129, 0.04) 0%, transparent 40%);
      background-attachment: fixed;
      color: var(--text-main);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

    /* 居中固定容器系统 */
    .site-container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 斑斓标语徽章与标题体系 */
    .section-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      font-size: 0.85rem;
      font-weight: 600;
      border-radius: var(--radius-full);
      background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(124, 58, 237, 0.08));
      color: var(--primary);
      border: 1px solid rgba(37, 99, 235, 0.2);
      margin-bottom: 14px;
    }

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

    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.02em;
      margin-bottom: 14px;
      position: relative;
    }

    .section-title span.rainbow-text {
      background: linear-gradient(120deg, #2563eb 0%, #7c3aed 50%, #f43f5e 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-sub);
      max-width: 720px;
      margin: 0 auto;
      line-height: 1.7;
    }

    .section-block {
      padding: 72px 0;
      position: relative;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      transition: var(--transition);
    }

    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }

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

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

    .brand-name {
      font-size: 1.25rem;
      font-weight: 800;
      background: linear-gradient(135deg, #2563eb, #7c3aed);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    /* 指令强制：.nav-links 的 gap 属性设置为 0 */
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0;
    }

    .nav-links li a {
      display: block;
      padding: 8px 13px;
      font-size: 0.93rem;
      font-weight: 500;
      color: var(--text-muted);
      border-radius: var(--radius-sm);
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background: rgba(37, 99, 235, 0.06);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-full);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      text-align: center;
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, #2563eb, #7c3aed);
      color: #ffffff !important;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, #1d4ed8, #6d28d9);
      box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
      transform: translateY(-1px);
    }

    .btn-portal {
      background: linear-gradient(135deg, #f43f5e, #f59e0b);
      color: #ffffff !important;
      box-shadow: 0 4px 14px rgba(244, 63, 94, 0.25);
      font-weight: 700;
      animation: pulseSubtle 3s infinite;
    }

    .btn-portal:hover {
      box-shadow: 0 6px 22px rgba(244, 63, 94, 0.4);
      transform: translateY(-2px);
    }

    .btn-secondary {
      background: var(--surface-white);
      color: var(--text-main);
      border-color: var(--border-bright);
    }

    .btn-secondary:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: rgba(37, 99, 235, 0.04);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      font-size: 1.25rem;
      color: var(--text-main);
      cursor: pointer;
    }

    /* 一、首屏 HERO 区域（严格无任何图片，纯CSS斑斓科技感） */
    .hero-section {
      padding: 80px 0 60px;
      position: relative;
    }

    .hero-container {
      text-align: center;
    }

    .hero-top-tag {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 8px 20px;
      border-radius: var(--radius-full);
      background: linear-gradient(90deg, rgba(37, 99, 235, 0.08), rgba(244, 63, 94, 0.08), rgba(245, 158, 11, 0.08));
      border: 1px solid rgba(124, 58, 237, 0.2);
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 24px;
    }

    .hero-top-tag .dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #10b981;
      display: inline-block;
      box-shadow: 0 0 10px #10b981;
    }

    /* H1 要求在 20 字以内改写 */
    .hero-title {
      font-size: 3.2rem;
      font-weight: 900;
      line-height: 1.18;
      letter-spacing: -0.03em;
      margin-bottom: 22px;
      color: var(--text-main);
    }

    .hero-title .highlight-line {
      display: block;
      background: linear-gradient(135deg, #2563eb 0%, #7c3aed 40%, #f43f5e 80%, #f59e0b 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-top: 6px;
    }

    .hero-lead {
      font-size: 1.2rem;
      color: var(--text-muted);
      max-width: 840px;
      margin: 0 auto 36px;
      line-height: 1.8;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 50px;
    }

    .hero-actions .btn {
      padding: 13px 32px;
      font-size: 1.05rem;
    }

    /* 首屏纯CSS高能看板 */
    .hero-dashboard-preview {
      background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
      border: 1px solid rgba(203, 213, 225, 0.8);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-lg);
      position: relative;
      overflow: hidden;
    }

    .hero-dashboard-preview::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: linear-gradient(90deg, #2563eb, #7c3aed, #f43f5e, #f59e0b, #10b981);
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .stat-card {
      background: var(--surface-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px 18px;
      text-align: left;
      transition: var(--transition);
      position: relative;
    }

    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(37, 99, 235, 0.3);
    }

    .stat-number {
      font-size: 2.2rem;
      font-weight: 800;
      line-height: 1.1;
      margin-bottom: 6px;
      font-feature-settings: "tnum";
    }

    .stat-number.color-blue { color: #2563eb; }
    .stat-number.color-purple { color: #7c3aed; }
    .stat-number.color-rose { color: #f43f5e; }
    .stat-number.color-green { color: #10b981; }

    .stat-label {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .stat-sub {
      font-size: 0.8rem;
      color: var(--text-sub);
    }

    /* 支持模型矩阵徽章墙 */
    .model-matrix-bar {
      margin-top: 36px;
      padding-top: 24px;
      border-top: 1px dashed var(--border-color);
      text-align: left;
    }

    .model-matrix-title {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-sub);
      text-transform: uppercase;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .model-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .model-chip {
      background: var(--surface-tint);
      color: var(--text-muted);
      border: 1px solid var(--border-color);
      font-size: 0.8rem;
      font-weight: 600;
      padding: 5px 12px;
      border-radius: var(--radius-full);
      transition: var(--transition);
    }

    .model-chip:hover {
      background: #ffffff;
      color: var(--primary);
      border-color: var(--primary);
      transform: translateY(-1px);
    }

    /* 平台介绍 & 宏观能力 */
    .platform-intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .intro-feature-list {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .intro-item {
      display: flex;
      gap: 16px;
      background: var(--surface-white);
      border: 1px solid var(--border-color);
      padding: 18px 22px;
      border-radius: var(--radius-md);
      transition: var(--transition);
    }

    .intro-item:hover {
      border-color: var(--secondary);
      box-shadow: var(--shadow-sm);
      transform: translateX(4px);
    }

    .intro-icon {
      flex-shrink: 0;
      width: 44px;
      height: 44px;
      border-radius: var(--radius-sm);
      background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(124, 58, 237, 0.1));
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      font-weight: 700;
    }

    .intro-item-title {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 4px;
      color: var(--text-main);
    }

    .intro-item-text {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

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

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

    /* 一站式AIGC核心场景工坊卡片组 */
    .workshop-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .workshop-card {
      background: var(--surface-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 26px;
      position: relative;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
      overflow: hidden;
    }

    .workshop-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, #2563eb, #7c3aed);
      opacity: 0;
      transition: var(--transition);
    }

    .workshop-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: rgba(124, 58, 237, 0.25);
    }

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

    .card-tag {
      align-self: flex-start;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: var(--radius-full);
      margin-bottom: 14px;
      text-transform: uppercase;
    }

    .tag-blue { background: rgba(37, 99, 235, 0.1); color: #2563eb; }
    .tag-purple { background: rgba(124, 58, 237, 0.1); color: #7c3aed; }
    .tag-rose { background: rgba(244, 63, 94, 0.1); color: #f43f5e; }
    .tag-green { background: rgba(16, 185, 129, 0.1); color: #059669; }
    .tag-amber { background: rgba(245, 158, 11, 0.1); color: #d97706; }
    .tag-cyan { background: rgba(6, 182, 212, 0.1); color: #0891b2; }

    .workshop-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .workshop-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
      flex-grow: 1;
    }

    .workshop-features {
      list-style: none;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
      margin-bottom: 16px;
    }

    .workshop-features li {
      font-size: 0.85rem;
      color: var(--text-sub);
      display: flex;
      align-items: center;
      gap: 6px;
      margin-bottom: 6px;
    }

    .workshop-features li::before {
      content: "✓";
      color: var(--accent-emerald);
      font-weight: bold;
    }

    /* 横版素材图插槽专区 */
    .content-banner-section {
      margin: 40px 0;
    }

    .content-banner-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }

    .content-banner-item {
      background: var(--surface-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .content-banner-item:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }

    .content-banner-item img {
      width: 100%;
      height: 230px;
      object-fit: cover;
      display: block;
    }

    .content-banner-body {
      padding: 18px 22px;
    }

    .content-banner-body h4 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .content-banner-body p {
      font-size: 0.88rem;
      color: var(--text-sub);
    }

    /* 对比评测专属板块（要求五星 9.9分） */
    .evaluation-wrapper {
      background: var(--surface-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

    .rating-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      background: linear-gradient(135deg, #eff6ff 0%, #faf5ff 50%, #fff1f2 100%);
      border: 1px solid rgba(124, 58, 237, 0.15);
      border-radius: var(--radius-md);
      padding: 24px 30px;
      margin-bottom: 32px;
    }

    .rating-left {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .score-badge-circle {
      width: 80px;
      height: 80px;
      border-radius: 50%;
      background: linear-gradient(135deg, #2563eb, #7c3aed);
      color: #ffffff;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
    }

    .score-badge-circle .num {
      font-size: 1.8rem;
      font-weight: 900;
      line-height: 1;
    }

    .score-badge-circle .max {
      font-size: 0.72rem;
      opacity: 0.85;
    }

    .rating-meta h3 {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .stars-line {
      color: #f59e0b;
      font-size: 1.25rem;
      letter-spacing: 2px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .stars-label {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 600;
    }

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

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

    .eval-table th, 
    .eval-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.92rem;
    }

    .eval-table th {
      background: var(--surface-tint);
      color: var(--text-main);
      font-weight: 700;
    }

    .eval-table th:first-child {
      border-top-left-radius: var(--radius-sm);
    }
    .eval-table th:last-child {
      border-top-right-radius: var(--radius-sm);
    }

    .eval-table tr:hover td {
      background: rgba(37, 99, 235, 0.02);
    }

    .eval-table .highlight-col {
      background: rgba(37, 99, 235, 0.04);
      font-weight: 700;
      color: #2563eb;
    }

    .check-icon {
      color: var(--accent-emerald);
      font-weight: bold;
      margin-right: 4px;
    }

    .cross-icon {
      color: #94a3b8;
      margin-right: 4px;
    }

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

    .token-card {
      background: var(--surface-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      transition: var(--transition);
      position: relative;
    }

    .token-card.featured {
      border-color: #7c3aed;
      box-shadow: var(--shadow-md);
      background: linear-gradient(180deg, #ffffff 0%, #faf5ff 100%);
    }

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

    .token-model-name {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .token-official-price {
      font-size: 0.85rem;
      color: #94a3b8;
      text-decoration: line-through;
      margin-bottom: 4px;
    }

    .token-our-price {
      font-size: 1.6rem;
      font-weight: 800;
      color: #f43f5e;
      margin-bottom: 12px;
    }

    .token-save-tag {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: var(--radius-full);
      background: rgba(244, 63, 94, 0.1);
      color: #f43f5e;
      margin-bottom: 14px;
    }

    /* 标准流程 4 步 */
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .process-card {
      background: var(--surface-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
      transition: var(--transition);
    }

    .process-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
      transform: translateY(-3px);
    }

    .step-badge {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: linear-gradient(135deg, #2563eb, #7c3aed);
      color: #ffffff;
      font-size: 1rem;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
    }

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

    .process-text {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 案例展示区（嵌入宣传图标签） */
    .case-gallery-section {
      background: var(--surface-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .gallery-images-container {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-bottom: 24px;
    }

    .gallery-images-container .ai-page-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      transition: var(--transition);
      display: block;
    }

    .gallery-images-container .ai-page-image:hover {
      transform: scale(1.02);
      box-shadow: var(--shadow-md);
    }

    /* 用户评论卡片（严格 6 条用户评论） */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .testimonial-card:hover {
      box-shadow: var(--shadow-md);
      border-color: rgba(37, 99, 235, 0.3);
      transform: translateY(-3px);
    }

    .testimonial-quote {
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
      position: relative;
    }

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

    .user-avatar-initial {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #2563eb, #f43f5e);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
      flex-shrink: 0;
    }

    .user-info h5 {
      font-size: 0.98rem;
      font-weight: 700;
      color: var(--text-main);
    }

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

    /* 需求匹配与提交表单 */
    .form-section-card {
      background: var(--surface-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
      max-width: 900px;
      margin: 0 auto;
    }

    .custom-form {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .form-full {
      grid-column: span 2;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .form-group label {
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-main);
    }

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

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

    textarea.form-control {
      min-height: 120px;
      resize: vertical;
    }

    /* FAQ 折叠面板 */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

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

    .faq-item.active {
      border-color: rgba(37, 99, 235, 0.4);
      box-shadow: var(--shadow-sm);
    }

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

    .faq-icon {
      font-size: 1.25rem;
      color: var(--primary);
      transition: transform 0.3s ease;
      font-weight: bold;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background: var(--surface-tint);
      color: var(--text-muted);
      font-size: 0.94rem;
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 18px 24px 24px;
      border-top: 1px solid var(--border-color);
    }

    /* 行业资讯 & AI百科 */
    .articles-section-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 28px;
    }

    .article-links-card, .encyclopedia-card {
      background: var(--surface-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-sm);
    }

    .article-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .article-item a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 16px;
      background: var(--surface-tint);
      border-radius: var(--radius-sm);
      font-size: 0.93rem;
      font-weight: 600;
      color: var(--text-main);
      border: 1px solid transparent;
    }

    .article-item a:hover {
      border-color: var(--primary);
      background: #ffffff;
      color: var(--primary);
      transform: translateX(4px);
    }

    /* 加盟代理与被动收益专区 */
    .agent-cta-box {
      background: linear-gradient(135deg, #1e1b4b 0%, #312e81 50%, #4338ca 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 48px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .agent-cta-box h3 {
      font-size: 2.2rem;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .agent-cta-box p {
      font-size: 1.1rem;
      color: #e0e7ff;
      max-width: 760px;
      margin: 0 auto 30px;
      line-height: 1.7;
    }

    .agent-perks {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 24px;
      margin-bottom: 36px;
    }

    .perk-pill {
      background: rgba(255, 255, 255, 0.12);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255, 255, 255, 0.2);
      padding: 8px 20px;
      border-radius: var(--radius-full);
      font-size: 0.92rem;
      font-weight: 600;
    }

    /* 页脚与联系信息 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 60px 0 30px;
      margin-top: 60px;
      color: var(--text-muted);
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-brand-info p {
      font-size: 0.9rem;
      color: var(--text-sub);
      margin: 14px 0 20px;
      line-height: 1.7;
    }

    .footer-col h5 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 18px;
    }

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

    .footer-links-list li a {
      font-size: 0.9rem;
      color: var(--text-sub);
    }

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

    .contact-card-box {
      font-size: 0.88rem;
      line-height: 1.8;
      color: var(--text-sub);
    }

    .contact-card-box strong {
      color: var(--text-main);
    }

    .qr-container {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-top: 14px;
    }

    .qr-container img {
      width: 90px;
      height: 90px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      display: block;
    }

    .qr-text {
      font-size: 0.82rem;
      color: var(--text-sub);
      line-height: 1.5;
    }

    .friend-links-bar {
      border-top: 1px solid var(--border-color);
      padding: 22px 0;
      font-size: 0.88rem;
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 14px;
    }

    .friend-links-bar span {
      font-weight: 700;
      color: var(--text-main);
    }

    .friend-links-bar a {
      color: var(--text-sub);
      background: var(--surface-tint);
      padding: 4px 10px;
      border-radius: 4px;
      border: 1px solid var(--border-color);
    }

    .friend-links-bar a:hover {
      color: var(--primary);
      border-color: var(--primary);
    }

    .footer-bottom {
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: var(--text-sub);
    }

    /* 右侧悬浮快捷组件 */
    .floating-assistant {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 990;
      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: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      cursor: pointer;
      transition: var(--transition);
      color: var(--text-main);
    }

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

    @keyframes pulseSubtle {
      0%, 100% { opacity: 1; }
      50% { opacity: 0.92; }
    }

    /* 响应式媒体查询 */
    @media (max-width: 1024px) {
      .hero-title { font-size: 2.6rem; }
      .workshop-grid { grid-template-columns: repeat(2, 1fr); }
      .hero-stats-grid { grid-template-columns: repeat(2, 1fr); }
      .token-grid { grid-template-columns: repeat(2, 1fr); }
      .process-timeline { grid-template-columns: repeat(2, 1fr); }
      .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-top-grid { grid-template-columns: 1fr 1fr; }
      .articles-section-grid { grid-template-columns: 1fr; }
      .gallery-images-container { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn { display: block; }
      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 16px;
        box-shadow: var(--shadow-md);
        border-bottom: 1px solid var(--border-color);
        gap: 0;
      }
      .nav-links.show { display: flex; }
      .nav-links li { width: 100%; }
      .nav-links li a { padding: 12px 16px; width: 100%; }
      .hero-title { font-size: 2.1rem; }
      .platform-intro-grid { grid-template-columns: 1fr; }
      .workshop-grid { grid-template-columns: 1fr; }
      .content-banner-grid { grid-template-columns: 1fr; }
      .testimonials-grid { grid-template-columns: 1fr; }
      .hero-stats-grid { grid-template-columns: 1fr; }
      .token-grid { grid-template-columns: 1fr; }
      .process-timeline { grid-template-columns: 1fr; }
      .gallery-images-container { grid-template-columns: 1fr; }
      .custom-form { grid-template-columns: 1fr; }
      .form-full { grid-column: span 1; }
      .footer-top-grid { grid-template-columns: 1fr; }
      .rating-banner { flex-direction: column; align-items: flex-start; }
    }