:root {
      --primary: #ff5722;
      --primary-dark: #e64a19;
      --primary-light: #fff3e0;
      --primary-gradient: linear-gradient(135deg, #ff6f00 0%, #ff3d00 100%);
      --accent-gold: #ff9800;
      --bg-page: #fbf9f6;
      --bg-card: #ffffff;
      --text-main: #1f2329;
      --text-muted: #595f69;
      --text-light: #8f959e;
      --border-color: #f0e6dc;
      --border-light: #f5ede6;
      --shadow-sm: 0 2px 8px rgba(255, 87, 34, 0.05);
      --shadow-md: 0 8px 24px rgba(255, 87, 34, 0.08);
      --shadow-lg: 0 16px 36px rgba(230, 74, 25, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      min-width: 320px;
    }

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

    ul, ol {
      list-style: none;
    }

    .ai-container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

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

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

    .brand-logo-box img.ai-page-logo {
      height: 38px;
      width: auto;
      display: block;
      object-fit: contain;
    }

    .brand-name {
      font-size: 1.35rem;
      font-weight: 800;
      color: #ff3d00;
      letter-spacing: -0.5px;
    }

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

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }

    .nav-links li a {
      display: inline-block;
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-main);
      border-radius: var(--radius-sm);
      transition: color 0.2s, background 0.2s;
    }

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

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

    .btn-portal {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      font-size: 0.92rem;
      font-weight: 700;
      border-radius: 30px;
      background: var(--primary-gradient);
      color: #ffffff !important;
      box-shadow: 0 4px 14px rgba(255, 87, 34, 0.28);
      transition: transform 0.2s, box-shadow 0.2s;
    }

    .btn-portal:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 87, 34, 0.38);
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      padding: 6px 10px;
      border-radius: 6px;
      font-size: 1.2rem;
      color: var(--text-main);
      cursor: pointer;
    }

    /* 首屏无图纯CSS科技感 Hero */
    .hero-section {
      background: radial-gradient(circle at 80% 20%, #fff0e6 0%, #fbf9f6 65%), linear-gradient(180deg, #ffffff 0%, #fbf9f6 100%);
      padding: 76px 0 68px;
      border-bottom: 1px solid var(--border-color);
      position: relative;
      overflow: hidden;
    }

    .hero-glow-1 {
      position: absolute;
      top: -120px;
      right: -80px;
      width: 480px;
      height: 480px;
      background: radial-gradient(circle, rgba(255, 112, 67, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
      pointer-events: none;
    }

    .hero-glow-2 {
      position: absolute;
      bottom: -150px;
      left: -100px;
      width: 520px;
      height: 520px;
      background: radial-gradient(circle, rgba(255, 171, 64, 0.18) 0%, rgba(255, 255, 255, 0) 70%);
      pointer-events: none;
    }

    .hero-content-wrap {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
      position: relative;
      z-index: 2;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      background-color: var(--primary-light);
      border: 1px solid #ffd8b8;
      border-radius: 20px;
      font-size: 0.86rem;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 20px;
    }

    .hero-title {
      font-size: 2.75rem;
      font-weight: 900;
      line-height: 1.22;
      color: #1a1c20;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

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

    .hero-subtitle {
      font-size: 1.12rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 32px;
      max-width: 620px;
    }

    .hero-btn-group {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      margin-bottom: 36px;
    }

    .btn-hero-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 14px 34px;
      font-size: 1.05rem;
      font-weight: 800;
      border-radius: 40px;
      background: var(--primary-gradient);
      color: #ffffff !important;
      box-shadow: 0 10px 24px rgba(255, 87, 34, 0.35);
      transition: all 0.25s ease;
    }

    .btn-hero-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 14px 32px rgba(255, 87, 34, 0.45);
    }

    .btn-hero-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 14px 28px;
      font-size: 1.02rem;
      font-weight: 700;
      border-radius: 40px;
      background: #ffffff;
      color: var(--primary-dark) !important;
      border: 1.5px solid #ffccbc;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }

    .btn-hero-secondary:hover {
      background-color: var(--primary-light);
      border-color: var(--primary);
    }

    .hero-stats-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
    }

    .hero-stat-item h4 {
      font-size: 1.75rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 2px;
    }

    .hero-stat-item p {
      font-size: 0.85rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 首屏右侧纯样式代码终端展示卡 */
    .hero-preview-board {
      background: #ffffff;
      border: 1.5px solid #ffdec8;
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-lg);
      position: relative;
    }

    .board-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid var(--border-light);
      padding-bottom: 14px;
      margin-bottom: 18px;
    }

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

    .dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      display: inline-block;
    }

    .dot.red { background: #ff5252; }
    .dot.yellow { background: #ffb142; }
    .dot.green { background: #2ed573; }

    .board-tag {
      font-size: 0.78rem;
      font-weight: 700;
      color: var(--primary-dark);
      background: var(--primary-light);
      padding: 3px 10px;
      border-radius: 12px;
    }

    .board-grid-cards {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-bottom: 18px;
    }

    .board-card {
      background: #fdfbf9;
      border: 1px solid #fae8dc;
      padding: 12px 14px;
      border-radius: var(--radius-sm);
    }

    .board-card-title {
      font-size: 0.88rem;
      font-weight: 700;
      color: #2b2f38;
      margin-bottom: 4px;
    }

    .board-card-desc {
      font-size: 0.76rem;
      color: var(--text-muted);
      line-height: 1.4;
    }

    .board-console {
      background: #23272e;
      color: #eceff4;
      padding: 14px;
      border-radius: var(--radius-sm);
      font-family: Consolas, Monaco, monospace;
      font-size: 0.78rem;
      line-height: 1.55;
    }

    .code-hl {
      color: #ff9800;
      font-weight: 700;
    }

    .code-green {
      color: #4cd137;
    }

    /* 通用Section */
    .section-wrap {
      padding: 80px 0;
      border-bottom: 1px solid var(--border-color);
      position: relative;
    }

    .section-alt {
      background-color: #ffffff;
    }

    .section-header-box {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 52px;
    }

    .section-eyebrow {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 800;
      letter-spacing: 1px;
      color: var(--primary);
      text-transform: uppercase;
      margin-bottom: 10px;
      padding: 4px 14px;
      background: var(--primary-light);
      border-radius: 20px;
    }

    .section-title {
      font-size: 2.15rem;
      font-weight: 800;
      color: #1e2229;
      line-height: 1.32;
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 1.02rem;
      color: var(--text-muted);
      line-height: 1.68;
    }

    /* 平台介绍板块 */
    .about-feature-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-bottom: 40px;
    }

    .about-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s, box-shadow 0.25s;
    }

    .about-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #ffcbb3;
    }

    .about-icon-cube {
      width: 52px;
      height: 52px;
      background: var(--primary-gradient);
      color: #ffffff;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.35rem;
      font-weight: 800;
      margin-bottom: 18px;
      box-shadow: 0 6px 14px rgba(255, 87, 34, 0.25);
    }

    .about-card h3 {
      font-size: 1.22rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: #1e2229;
    }

    .about-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* AIGC服务与模型聚合 */
    .model-badge-container {
      background: #ffffff;
      border: 1.5px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      margin-bottom: 44px;
    }

    .model-badge-header {
      font-size: 1.05rem;
      font-weight: 800;
      color: #1e2229;
      margin-bottom: 18px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

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

    .model-tag {
      padding: 6px 14px;
      font-size: 0.85rem;
      font-weight: 600;
      color: #3e4451;
      background: #fdf6f0;
      border: 1px solid #fae3d2;
      border-radius: 20px;
      transition: all 0.2s ease;
    }

    .model-tag:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
      transform: scale(1.05);
    }

    .service-grid-col4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .service-item-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px 18px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }

    .service-item-box:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #ffbf9f;
    }

    .service-item-title {
      font-size: 1.08rem;
      font-weight: 700;
      color: #21252d;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .service-item-title::before {
      content: "";
      display: inline-block;
      width: 6px;
      height: 16px;
      background: var(--primary-gradient);
      border-radius: 3px;
    }

    .service-item-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 一站式创作场景矩阵 */
    .scenario-grid-col3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .scenario-tile {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: transform 0.2s, box-shadow 0.2s;
    }

    .scenario-tile:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: #ffcbb3;
    }

    .scenario-badge {
      display: inline-block;
      font-size: 0.76rem;
      font-weight: 700;
      color: var(--primary-dark);
      background: var(--primary-light);
      padding: 3px 8px;
      border-radius: 4px;
      margin-bottom: 12px;
    }

    .scenario-tile h3 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: #1e2229;
    }

    .scenario-tile p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.58;
    }

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

    .step-node {
      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);
    }

    .step-num {
      width: 44px;
      height: 44px;
      margin: 0 auto 16px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #ffffff;
      font-size: 1.15rem;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 12px rgba(255, 87, 34, 0.3);
    }

    .step-node h3 {
      font-size: 1.08rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: #21252d;
    }

    .step-node p {
      font-size: 0.86rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 案例展示 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
      margin-bottom: 36px;
    }

    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .case-media-wrap {
      background: #f5ede6;
      width: 100%;
      overflow: hidden;
      aspect-ratio: 16 / 9;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .case-media-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.35s ease;
    }

    .case-card:hover .case-media-wrap img {
      transform: scale(1.03);
    }

    .case-body {
      padding: 22px 24px;
    }

    .case-tag {
      font-size: 0.78rem;
      font-weight: 700;
      color: var(--primary);
      background: var(--primary-light);
      padding: 3px 10px;
      border-radius: 12px;
      display: inline-block;
      margin-bottom: 8px;
    }

    .case-body h3 {
      font-size: 1.18rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: #1f2329;
    }

    .case-body p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 宣传物料展示栏 (非首屏) */
    .banner-media-row {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 20px;
      margin-top: 30px;
      align-items: center;
    }

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

    .banner-img-box img {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
    }

    /* 对比评测板块 */
    .review-score-panel {
      background: linear-gradient(135deg, #fff5eb 0%, #fff8f2 100%);
      border: 2px solid #ffd8b8;
      border-radius: var(--radius-lg);
      padding: 36px 30px;
      margin-bottom: 40px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      box-shadow: var(--shadow-md);
    }

    .score-left {
      display: flex;
      align-items: center;
      gap: 24px;
    }

    .score-digit {
      font-size: 4.2rem;
      font-weight: 900;
      line-height: 1;
      color: var(--primary);
      letter-spacing: -2px;
    }

    .score-detail h3 {
      font-size: 1.45rem;
      font-weight: 800;
      color: #1f2329;
      margin-bottom: 6px;
    }

    .score-stars {
      color: #ff9800;
      font-size: 1.25rem;
      letter-spacing: 2px;
      margin-bottom: 4px;
    }

    .score-caption {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .score-right {
      max-width: 480px;
    }

    .score-right p {
      font-size: 0.95rem;
      color: #393e46;
      line-height: 1.65;
    }

    /* 对比表格 */
    .compare-table-wrap {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }

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

    .compare-table th {
      background: #fff4ed;
      color: #1f2329;
      font-weight: 800;
    }

    .compare-table tr:last-child td {
      border-bottom: none;
    }

    .compare-table tr:hover td {
      background-color: #fffaf5;
    }

    .col-highlight {
      background-color: #fff9f5;
      font-weight: 700;
      color: var(--primary-dark);
    }

    /* Token比价与价格看板 */
    .token-pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .price-card {
      background: #ffffff;
      border: 1.5px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      position: relative;
      transition: all 0.25s ease;
    }

    .price-card.featured {
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
      background: #fffdfb;
    }

    .price-badge-top {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--primary-gradient);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 800;
      padding: 4px 12px;
      border-radius: 20px;
    }

    .price-card h3 {
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: #1f2329;
    }

    .price-number {
      font-size: 2.3rem;
      font-weight: 900;
      color: var(--primary);
      margin: 12px 0;
      display: flex;
      align-items: baseline;
      gap: 4px;
    }

    .price-number small {
      font-size: 0.95rem;
      color: var(--text-muted);
      font-weight: normal;
    }

    .price-features {
      margin: 20px 0 26px;
      flex-grow: 1;
    }

    .price-features li {
      font-size: 0.88rem;
      color: #3b4049;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .price-features li::before {
      content: "✓";
      color: var(--primary);
      font-weight: 900;
    }

    /* 客户真实评价 6条 */
    .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 20px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: transform 0.2s, box-shadow 0.2s;
    }

    .review-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: #ffd4be;
    }

    .review-stars {
      color: #ff9800;
      font-size: 0.95rem;
      margin-bottom: 10px;
    }

    .review-quote {
      font-size: 0.9rem;
      color: #2f343e;
      line-height: 1.62;
      margin-bottom: 18px;
    }

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

    .user-avatar-char {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: #ffe3d3;
      color: var(--primary-dark);
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.95rem;
    }

    .user-meta h4 {
      font-size: 0.92rem;
      font-weight: 700;
      color: #1e2229;
    }

    .user-meta p {
      font-size: 0.78rem;
      color: var(--text-muted);
    }

    /* FAQ 手风琴 */
    .faq-container {
      max-width: 920px;
      margin: 0 auto;
    }

    .faq-accordion-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      overflow: hidden;
      transition: border-color 0.2s;
    }

    .faq-accordion-item.active {
      border-color: #ff9e79;
    }

    .faq-trigger {
      width: 100%;
      padding: 18px 24px;
      background: none;
      border: none;
      text-align: left;
      font-size: 1.02rem;
      font-weight: 700;
      color: #1e2229;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
    }

    .faq-trigger:hover {
      color: var(--primary);
    }

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

    .faq-accordion-item.active .faq-icon-arrow {
      transform: rotate(180deg);
    }

    .faq-content {
      padding: 0 24px 18px;
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.68;
      display: none;
    }

    .faq-accordion-item.active .faq-content {
      display: block;
    }

    /* 需求匹配与表单板块 */
    .contact-form-layout {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 36px;
      background: #ffffff;
      border: 1.5px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .form-box-title {
      font-size: 1.5rem;
      font-weight: 800;
      margin-bottom: 8px;
      color: #1e2229;
    }

    .form-box-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      margin-bottom: 24px;
    }

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

    .input-group label {
      display: block;
      font-size: 0.88rem;
      font-weight: 700;
      color: #2b303a;
      margin-bottom: 6px;
    }

    .input-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.92rem;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      background: #fdfcfb;
      outline: none;
      transition: border-color 0.2s, box-shadow 0.2s;
    }

    .input-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(255, 87, 34, 0.15);
      background: #ffffff;
    }

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

    .btn-submit-form {
      width: 100%;
      padding: 14px;
      font-size: 1.02rem;
      font-weight: 800;
      border-radius: var(--radius-sm);
      background: var(--primary-gradient);
      color: #ffffff;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(255, 87, 34, 0.3);
      transition: transform 0.2s, box-shadow 0.2s;
    }

    .btn-submit-form:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 87, 34, 0.4);
    }

    .contact-info-side {
      background: #fbf7f4;
      border: 1px solid #f2e3d7;
      border-radius: var(--radius-md);
      padding: 30px 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .contact-card-list {
      margin-bottom: 24px;
    }

    .contact-card-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      margin-bottom: 16px;
    }

    .contact-item-title {
      font-size: 0.82rem;
      color: var(--text-light);
      text-transform: uppercase;
      font-weight: 700;
    }

    .contact-item-val {
      font-size: 0.95rem;
      font-weight: 700;
      color: #1f2329;
    }

    .qr-box-wrap {
      text-align: center;
      background: #ffffff;
      padding: 18px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
    }

    .qr-box-wrap img {
      max-width: 130px;
      height: auto;
      display: block;
      margin: 0 auto 10px;
      border-radius: 6px;
    }

    .qr-box-wrap p {
      font-size: 0.82rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* 行业资讯与最新文章 */
    .article-links-wrap {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      margin-bottom: 30px;
    }

    .article-list-flex {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
    }

    .article-link-chip {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 12px 16px;
      background: #fffaf5;
      border: 1px solid #fae8dc;
      border-radius: var(--radius-sm);
      font-size: 0.88rem;
      color: #2f343e;
      font-weight: 600;
      transition: all 0.2s ease;
    }

    .article-link-chip:hover {
      background: var(--primary-light);
      border-color: var(--primary);
      color: var(--primary-dark);
      transform: translateX(4px);
    }

    /* 加盟代理板块 */
    .franchise-banner {
      background: linear-gradient(135deg, #fff3e0 0%, #ffe0b2 100%);
      border: 2px solid #ffcc80;
      border-radius: var(--radius-lg);
      padding: 44px 36px;
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 30px;
      flex-wrap: wrap;
    }

    .franchise-text h3 {
      font-size: 1.8rem;
      font-weight: 800;
      color: #d84315;
      margin-bottom: 10px;
    }

    .franchise-text p {
      font-size: 1rem;
      color: #4e342e;
      line-height: 1.6;
      max-width: 680px;
    }

    /* 页脚设计与友情链接 */
    .site-footer {
      background: #ffffff;
      border-top: 2px solid var(--border-color);
      padding: 56px 0 32px;
      color: var(--text-main);
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-brand-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin: 14px 0 18px;
    }

    .footer-heading {
      font-size: 1.02rem;
      font-weight: 800;
      color: #1e2229;
      margin-bottom: 16px;
      border-left: 3px solid var(--primary);
      padding-left: 8px;
    }

    .footer-nav-list li {
      margin-bottom: 10px;
    }

    .footer-nav-list li a {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    .footer-nav-list li a:hover {
      color: var(--primary);
      padding-left: 4px;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 10px;
    }

    .friend-links-list a {
      display: inline-block;
      font-size: 0.82rem;
      color: var(--text-muted);
      background: #fbf6f2;
      padding: 4px 10px;
      border-radius: 4px;
      border: 1px solid #f0e2d5;
      transition: all 0.2s;
    }

    .friend-links-list a:hover {
      color: var(--primary-dark);
      border-color: var(--primary);
      background: var(--primary-light);
    }

    .footer-bottom-bar {
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: var(--text-light);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
    }

    .ai-page-home-link {
      font-weight: 700;
      color: var(--primary);
    }

    /* 悬浮客服与返回顶部 */
    .floating-contact-panel {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 1000;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-action-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1.5px solid #ffccbc;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-md);
      cursor: pointer;
      font-size: 1.25rem;
      transition: all 0.25s ease;
      text-decoration: none;
    }

    .float-action-btn:hover {
      background: var(--primary-gradient);
      color: #ffffff;
      transform: scale(1.1);
      border-color: var(--primary);
    }

    .float-qr-modal {
      display: none;
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      padding: 14px;
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-lg);
      border: 1px solid #ffccbc;
      width: 150px;
      text-align: center;
    }

    .float-action-btn.wechat-btn:hover + .float-qr-modal,
    .float-qr-modal:hover {
      display: block;
    }

    .float-qr-modal img {
      width: 100%;
      height: auto;
      display: block;
      margin-bottom: 6px;
    }

    .float-qr-modal span {
      font-size: 0.75rem;
      color: var(--text-muted);
      font-weight: 700;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-content-wrap {
        grid-template-columns: 1fr;
      }
      .about-feature-grid,
      .scenario-grid-col3,
      .token-pricing-grid,
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .service-grid-col4,
      .timeline-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top-grid {
        grid-template-columns: 1fr 1fr;
      }
      .contact-form-layout {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .nav-menu-desktop {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        padding: 16px 24px;
        box-shadow: var(--shadow-md);
      }
      .nav-menu-desktop.open {
        display: block;
      }
      .nav-links {
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        width: 100%;
        padding: 10px 0;
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .about-feature-grid,
      .scenario-grid-col3,
      .service-grid-col4,
      .timeline-steps,
      .case-grid,
      .token-pricing-grid,
      .reviews-grid,
      .article-list-flex,
      .footer-top-grid,
      .banner-media-row {
        grid-template-columns: 1fr;
      }
      .score-left {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
      }
      .score-digit {
        font-size: 3.5rem;
      }
      .franchise-banner {
        flex-direction: column;
        align-items: flex-start;
      }
    }