:root {
      --bg-main: #f9fafb;
      --bg-card: #ffffff;
      --primary: #0052ff;
      --primary-hover: #0041cc;
      --accent: #ff4d00;
      --accent-light: #fff2eb;
      --contrast-neon: #00c9a7;
      --contrast-soft: #f0f7ff;
      --text-main: #111827;
      --text-muted: #4b5563;
      --text-light: #6b7280;
      --border-color: #e5e7eb;
      --border-accent: #ffd1bd;
      --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
      --shadow-md: 0 10px 25px -5px rgba(0,0,0,0.06), 0 8px 10px -6px rgba(0,0,0,0.04);
      --shadow-hover: 0 20px 30px -10px rgba(0,82,255,0.12);
      --radius: 12px;
      --max-width: 1240px;
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
      display: flex;
      flex-direction: column;
      min-height: 100vh;
      background: radial-gradient(circle at 10% 10%, #fff4ec 0%, transparent 40%),
                  radial-gradient(circle at 90% 25%, #eef5ff 0%, transparent 45%),
                  var(--bg-main);
      background-attachment: fixed;
    }

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

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 2px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

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

    .brand-box {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      font-size: 1.25rem;
      color: var(--text-main);
    }

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

    .brand-tag {
      font-size: 0.75rem;
      background: var(--accent);
      color: #ffffff;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 700;
      letter-spacing: 0.5px;
    }

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

    .nav-links li a {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-main);
      padding: 8px 14px;
      border-radius: 6px;
      transition: all 0.2s ease;
      display: inline-block;
    }

    .nav-links li a:hover {
      color: var(--primary);
      background-color: var(--contrast-soft);
    }

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

    .btn-portal {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background-color: var(--primary);
      color: #ffffff !important;
      font-weight: 700;
      font-size: 0.9rem;
      padding: 10px 20px;
      border-radius: 8px;
      border: 2px solid var(--primary);
      box-shadow: 0 4px 12px rgba(0, 82, 255, 0.2);
      transition: all 0.25s ease;
    }

    .btn-portal:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(0, 82, 255, 0.3);
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    .mobile-menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background-color: var(--text-main);
      margin: 5px 0;
      transition: all 0.3s ease;
    }

    /* 首屏 Hero 区域 - 严格无图片 */
    .hero-section {
      padding: 60px 0 50px;
      position: relative;
    }

    .hero-wrapper {
      background: linear-gradient(135deg, #ffffff 0%, #f7faff 60%, #fff7f2 100%);
      border: 3px solid var(--text-main);
      border-radius: 20px;
      padding: 60px 48px;
      box-shadow: 8px 8px 0px var(--text-main);
      position: relative;
      overflow: hidden;
    }

    .hero-wrapper::before {
      content: "AIGC NEXT GEN";
      position: absolute;
      right: -20px;
      bottom: -30px;
      font-size: 5rem;
      font-weight: 900;
      color: rgba(0, 82, 255, 0.03);
      user-select: none;
      z-index: 0;
    }

    .hero-content {
      position: relative;
      z-index: 1;
      max-width: 900px;
      margin: 0 auto;
      text-align: center;
    }

    .hero-badge-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      margin-bottom: 24px;
      flex-wrap: wrap;
    }

    .badge-item {
      display: inline-flex;
      align-items: center;
      padding: 6px 14px;
      border-radius: 30px;
      font-size: 0.85rem;
      font-weight: 700;
      border: 1px solid transparent;
    }

    .badge-item.highlight {
      background-color: var(--accent);
      color: #ffffff;
    }

    .badge-item.outline {
      background-color: #ffffff;
      color: var(--text-main);
      border-color: var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .hero-title {
      font-size: clamp(2rem, 4vw, 3rem);
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      letter-spacing: -0.5px;
      margin-bottom: 24px;
    }

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

    .hero-title span.color-contrast::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 2px;
      width: 100%;
      height: 8px;
      background: rgba(255, 77, 0, 0.25);
      z-index: -1;
      border-radius: 4px;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      line-height: 1.8;
      max-width: 780px;
      margin: 0 auto 36px;
    }

    .hero-cta-box {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 40px;
    }

    .btn-hero-main {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background-color: var(--accent);
      color: #ffffff !important;
      font-size: 1.1rem;
      font-weight: 800;
      padding: 16px 36px;
      border-radius: 12px;
      border: 2px solid var(--text-main);
      box-shadow: 4px 4px 0px var(--text-main);
      transition: all 0.2s ease;
    }

    .btn-hero-main:hover {
      transform: translate(-2px, -2px);
      box-shadow: 6px 6px 0px var(--text-main);
      background-color: #e04400;
    }

    .btn-hero-sub {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background-color: #ffffff;
      color: var(--text-main) !important;
      font-size: 1.1rem;
      font-weight: 700;
      padding: 16px 32px;
      border-radius: 12px;
      border: 2px solid var(--text-main);
      box-shadow: 4px 4px 0px var(--border-color);
      transition: all 0.2s ease;
    }

    .btn-hero-sub:hover {
      background-color: var(--contrast-soft);
      border-color: var(--primary);
      color: var(--primary) !important;
    }

    /* 首屏数据指标卡片 */
    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 20px;
      border-top: 2px dashed var(--border-color);
      padding-top: 32px;
    }

    .metric-card {
      background: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: 12px;
      padding: 16px;
      text-align: center;
      box-shadow: 3px 3px 0px var(--text-main);
      transition: transform 0.2s ease;
    }

    .metric-card:hover {
      transform: translateY(-4px);
    }

    .metric-num {
      font-size: 1.8rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .metric-num span {
      color: var(--accent);
      font-size: 1.2rem;
    }

    .metric-label {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-muted);
    }

    /* 通用章节规范 */
    section {
      padding: 70px 0;
      position: relative;
    }

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

    .section-tag {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--accent);
      background-color: var(--accent-light);
      padding: 4px 12px;
      border-radius: 6px;
      margin-bottom: 12px;
      border: 1px solid var(--border-accent);
    }

    .section-title {
      font-size: clamp(1.8rem, 3vw, 2.3rem);
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 16px;
    }

    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 关于我们 & 平台介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 36px;
      align-items: stretch;
    }

    .about-card {
      background: var(--bg-card);
      border: 2px solid var(--text-main);
      border-radius: 16px;
      padding: 36px;
      box-shadow: 6px 6px 0px var(--text-main);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .about-card h3 {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .about-card p {
      color: var(--text-muted);
      font-size: 0.98rem;
      margin-bottom: 16px;
      line-height: 1.8;
    }

    .platform-feature-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-top: 20px;
    }

    .feature-point {
      background: var(--contrast-soft);
      border-left: 4px solid var(--primary);
      padding: 12px 14px;
      border-radius: 0 8px 8px 0;
    }

    .feature-point h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .feature-point p {
      font-size: 0.82rem;
      color: var(--text-muted);
      margin-bottom: 0;
      line-height: 1.5;
    }

    .about-media-box {
      background: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: 16px;
      padding: 24px;
      box-shadow: 6px 6px 0px var(--accent);
      display: flex;
      flex-direction: column;
      gap: 20px;
      justify-content: center;
    }

    .media-card {
      border: 1px solid var(--border-color);
      border-radius: 10px;
      overflow: hidden;
      background: var(--bg-main);
    }

    .media-card img {
      width: 100%;
      height: auto;
      display: block;
      aspect-ratio: 16 / 9;
      object-fit: cover;
    }

    .media-card .media-caption {
      padding: 10px 14px;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-main);
      background: #ffffff;
      border-top: 1px solid var(--border-color);
    }

    /* 服务能力卡片与核心卖点 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: var(--bg-card);
      border: 2px solid var(--text-main);
      border-radius: 14px;
      padding: 28px;
      box-shadow: 4px 4px 0px var(--text-main);
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
      position: relative;
    }

    .service-card:hover {
      transform: translate(-3px, -3px);
      box-shadow: 7px 7px 0px var(--primary);
    }

    .service-badge {
      align-self: flex-start;
      font-size: 0.75rem;
      font-weight: 800;
      background: var(--contrast-soft);
      color: var(--primary);
      padding: 4px 10px;
      border-radius: 6px;
      margin-bottom: 16px;
      border: 1px solid rgba(0, 82, 255, 0.2);
    }

    .service-card h3 {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .service-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    .service-meta {
      margin-top: 16px;
      padding-top: 12px;
      border-top: 1px dashed var(--border-color);
      font-size: 0.8rem;
      font-weight: 600;
      color: var(--accent);
    }

    /* 多模型生态展示条 */
    .models-stream-box {
      margin-top: 40px;
      background: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: 14px;
      padding: 24px;
      box-shadow: 4px 4px 0px var(--text-main);
    }

    .models-stream-header {
      font-size: 1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .models-stream-header::before {
      content: "";
      width: 8px;
      height: 8px;
      background: var(--accent);
      border-radius: 50%;
    }

    .models-tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .model-pill {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-main);
      background: var(--bg-main);
      padding: 6px 14px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
      transition: all 0.2s ease;
    }

    .model-pill:hover {
      background: var(--text-main);
      color: #ffffff;
      border-color: var(--text-main);
    }

    /* 行业方案与场景应用 */
    .industry-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .industry-item {
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: 12px;
      padding: 22px;
      transition: all 0.25s ease;
    }

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

    .industry-icon-label {
      font-size: 0.8rem;
      font-weight: 800;
      color: var(--accent);
      margin-bottom: 8px;
    }

    .industry-item h4 {
      font-size: 1.1rem;
      font-weight: 800;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .industry-item p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

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

    .process-step {
      background: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: 14px;
      padding: 24px;
      box-shadow: 4px 4px 0px var(--text-main);
      position: relative;
    }

    .step-badge {
      font-size: 1.6rem;
      font-weight: 900;
      color: var(--accent);
      line-height: 1;
      margin-bottom: 12px;
    }

    .process-step h4 {
      font-size: 1.15rem;
      font-weight: 800;
      margin-bottom: 8px;
      color: var(--text-main);
    }

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

    /* 案例中心 */
    .cases-layout {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .case-card {
      background: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: 14px;
      overflow: hidden;
      box-shadow: 5px 5px 0px var(--text-main);
    }

    .case-img-wrap {
      width: 100%;
      background: #f0f0f0;
      border-bottom: 2px solid var(--text-main);
    }

    .case-img-wrap img {
      width: 100%;
      height: auto;
      display: block;
      aspect-ratio: 16 / 9;
      object-fit: cover;
    }

    .case-content {
      padding: 20px;
    }

    .case-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--primary);
      background: var(--contrast-soft);
      padding: 2px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 10px;
    }

    .case-content h4 {
      font-size: 1.1rem;
      font-weight: 800;
      margin-bottom: 8px;
      color: var(--text-main);
    }

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

    /* 对比评测要求 */
    .eval-box {
      background: #ffffff;
      border: 3px solid var(--text-main);
      border-radius: 18px;
      padding: 36px;
      box-shadow: 8px 8px 0px var(--text-main);
    }

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

    .score-badge-main {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .score-digital {
      background: var(--accent);
      color: #ffffff;
      font-size: 2.2rem;
      font-weight: 900;
      padding: 10px 20px;
      border-radius: 12px;
      line-height: 1;
      border: 2px solid var(--text-main);
      box-shadow: 3px 3px 0px var(--text-main);
    }

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

    .score-text-sub {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    .rating-stars {
      color: #ffb800;
      font-size: 1.3rem;
      font-weight: 900;
      letter-spacing: 2px;
    }

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

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 600px;
    }

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

    .eval-table th {
      background-color: var(--contrast-soft);
      font-weight: 800;
      color: var(--text-main);
    }

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

    .highlight-col {
      background-color: #fff9f6;
      font-weight: 700;
      color: var(--accent);
    }

    /* Token 比价与成本透明 */
    .token-pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .pricing-card {
      background: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: 14px;
      padding: 30px;
      box-shadow: 5px 5px 0px var(--text-main);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .pricing-card.popular {
      border-color: var(--accent);
      box-shadow: 5px 5px 0px var(--accent);
      position: relative;
    }

    .popular-ribbon {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--accent);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 800;
      padding: 2px 10px;
      border-radius: 4px;
    }

    .pricing-title {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .pricing-rate {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary);
      margin: 14px 0;
    }

    .pricing-rate small {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-light);
    }

    .pricing-features {
      list-style: none;
      margin: 20px 0;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .pricing-features li {
      display: flex;
      align-items: center;
      gap: 8px;
    }

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

    /* 加盟代理板块 */
    .agent-box {
      background: linear-gradient(135deg, #0052ff 0%, #0036a6 100%);
      color: #ffffff;
      border: 3px solid var(--text-main);
      border-radius: 18px;
      padding: 48px;
      box-shadow: 8px 8px 0px var(--text-main);
      display: grid;
      grid-template-columns: 1.4fr 1fr;
      gap: 36px;
      align-items: center;
    }

    .agent-text h3 {
      font-size: 2rem;
      font-weight: 900;
      line-height: 1.3;
      margin-bottom: 16px;
      color: #ffffff;
    }

    .agent-text p {
      font-size: 1rem;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.9);
      margin-bottom: 24px;
    }

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

    .perk-item {
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.25);
      border-radius: 8px;
      padding: 12px;
      font-size: 0.88rem;
      font-weight: 600;
      color: #ffffff;
    }

    .agent-action-card {
      background: #ffffff;
      color: var(--text-main);
      border-radius: 14px;
      padding: 30px;
      text-align: center;
      border: 2px solid var(--text-main);
      box-shadow: 4px 4px 0px rgba(0,0,0,0.2);
    }

    .agent-action-card h4 {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .agent-action-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-bottom: 20px;
    }

    /* 用户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: 14px;
      padding: 24px;
      box-shadow: 4px 4px 0px var(--text-main);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-quote {
      font-size: 0.92rem;
      color: var(--text-main);
      line-height: 1.7;
      margin-bottom: 18px;
      font-style: italic;
    }

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

    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--contrast-soft);
      border: 2px solid var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      color: var(--primary);
      font-size: 1rem;
    }

    .author-info h5 {
      font-size: 0.95rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .author-info span {
      font-size: 0.8rem;
      color: var(--text-light);
    }

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

    .faq-item {
      background: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: 10px;
      box-shadow: 3px 3px 0px var(--text-main);
      overflow: hidden;
    }

    .faq-question {
      padding: 18px 24px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-weight: 800;
      font-size: 1rem;
      background: #ffffff;
      user-select: none;
      transition: background 0.2s;
    }

    .faq-question:hover {
      background: var(--contrast-soft);
    }

    .faq-icon {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--primary);
      transition: transform 0.3s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fafafa;
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.7;
    }

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

    /* 需求匹配与表单 */
    .match-form-wrapper {
      background: #ffffff;
      border: 3px solid var(--text-main);
      border-radius: 18px;
      padding: 44px;
      box-shadow: 8px 8px 0px var(--text-main);
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
    }

    .form-info-side h3 {
      font-size: 1.8rem;
      font-weight: 900;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .form-info-side p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 24px;
    }

    .form-contact-details {
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 0.9rem;
      font-weight: 600;
    }

    .contact-item-row {
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--text-main);
    }

    .qr-preview-box {
      margin-top: 24px;
      padding: 16px;
      background: var(--contrast-soft);
      border-radius: 10px;
      display: inline-flex;
      align-items: center;
      gap: 16px;
      border: 1px solid var(--border-color);
    }

    .qr-preview-box img {
      width: 80px;
      height: 80px;
      border-radius: 6px;
      display: block;
      border: 1px solid var(--border-color);
    }

    .qr-meta-txt h5 {
      font-size: 0.92rem;
      font-weight: 800;
      margin-bottom: 4px;
    }

    .qr-meta-txt p {
      font-size: 0.78rem;
      color: var(--text-light);
      margin: 0;
    }

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

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

    .form-group label {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
      width: 100%;
      padding: 12px 14px;
      border: 2px solid var(--border-color);
      border-radius: 8px;
      font-size: 0.95rem;
      color: var(--text-main);
      background-color: var(--bg-main);
      outline: none;
      transition: border-color 0.2s ease;
      font-family: inherit;
    }

    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
      border-color: var(--primary);
      background-color: #ffffff;
    }

    .btn-submit-form {
      background: var(--accent);
      color: #ffffff;
      font-size: 1rem;
      font-weight: 800;
      padding: 14px;
      border: 2px solid var(--text-main);
      border-radius: 8px;
      cursor: pointer;
      box-shadow: 4px 4px 0px var(--text-main);
      transition: all 0.2s ease;
      margin-top: 8px;
    }

    .btn-submit-form:hover {
      transform: translate(-2px, -2px);
      box-shadow: 6px 6px 0px var(--text-main);
    }

    /* 行业资讯与文章 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .article-item {
      background: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: 12px;
      padding: 20px;
      box-shadow: 4px 4px 0px var(--text-main);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .article-item h4 {
      font-size: 1.05rem;
      font-weight: 800;
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .article-item p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .article-link-btn {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .article-link-btn:hover {
      color: var(--accent);
    }

    /* 友情链接 */
    .links-section {
      background: #ffffff;
      border-top: 2px solid var(--border-color);
      padding: 30px 0;
    }

    .links-box {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
      font-size: 0.88rem;
    }

    .links-box span.title {
      font-weight: 800;
      color: var(--text-main);
    }

    .links-box a {
      color: var(--text-muted);
      padding: 4px 10px;
      background: var(--bg-main);
      border-radius: 6px;
      border: 1px solid var(--border-color);
      transition: all 0.2s ease;
    }

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

    /* 统一页脚 - 显式指定深色文字与可读背景 */
    .site-footer {
      background-color: #f3f4f6;
      color: var(--text-main);
      border-top: 2px solid var(--text-main);
      padding: 50px 0 30px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      font-size: 1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 18px;
    }

    .footer-col p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 12px;
    }

    .footer-nav-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-muted);
    }

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

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

    .footer-bottom {
      border-top: 1px solid #d1d5db;
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: var(--text-light);
    }

    /* 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: 50px;
      height: 50px;
      border-radius: 50%;
      background: #ffffff;
      border: 2px solid var(--text-main);
      box-shadow: 3px 3px 0px var(--text-main);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: all 0.2s ease;
      position: relative;
    }

    .float-btn.primary {
      background: var(--accent);
      color: #ffffff;
    }

    .float-btn:hover {
      transform: translate(-2px, -2px);
      box-shadow: 5px 5px 0px var(--text-main);
    }

    .float-popover {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: 12px;
      padding: 14px;
      box-shadow: 4px 4px 0px var(--text-main);
      display: none;
      flex-direction: column;
      align-items: center;
      gap: 8px;
      width: 160px;
      text-align: center;
    }

    .float-popover img {
      width: 120px;
      height: 120px;
      border-radius: 6px;
      display: block;
    }

    .float-popover span {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .float-btn.service-qr-trigger:hover .float-popover {
      display: flex;
    }

    /* 响应式调整 */
    @media (max-width: 1024px) {
      .services-grid,
      .cases-layout,
      .token-pricing-grid,
      .reviews-grid,
      .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .industry-grid,
      .process-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid,
      .agent-box,
      .match-form-wrapper {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 20px;
        border-bottom: 2px solid var(--text-main);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        padding: 12px;
      }
      .hero-wrapper {
        padding: 36px 20px;
      }
      .services-grid,
      .cases-layout,
      .token-pricing-grid,
      .reviews-grid,
      .articles-grid,
      .industry-grid,
      .process-timeline,
      .hero-metrics {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }