:root {
      --primary: #2563eb;
      --primary-dark: #1d4ed8;
      --primary-light: #eff6ff;
      --accent: #ff4757;
      --accent-hover: #e84118;
      --accent-warm: #ff7f50;
      --contrast-cyan: #00d2d3;
      --contrast-purple: #6c5ce7;
      --contrast-yellow: #ffa502;
      --contrast-green: #2ed573;
      --bg-base: #f8fafc;
      --bg-card: #ffffff;
      --bg-alt: #f1f5f9;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --border-color: #e2e8f0;
      --border-strong: #cbd5e1;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.05);
      --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      --shadow-lg: 0 20px 35px -10px rgba(15, 23, 42, 0.12), 0 10px 20px -8px rgba(15, 23, 42, 0.06);
      --shadow-color: 0 12px 30px rgba(37, 99, 235, 0.18);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-pill: 9999px;
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-tap-highlight-color: transparent;
    }

    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-base);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      display: flex;
      flex-direction: column;
      min-height: 100vh;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

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

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background-color: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 2px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

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

    .brand-area {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .logo-box {
      max-height: 44px;
      display: flex;
      align-items: center;
    }

    .ai-page-logo {
      height: 40px;
      width: auto;
      object-fit: contain;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--primary-dark);
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .brand-tag {
      background: var(--accent);
      color: #ffffff;
      font-size: 0.65rem;
      font-weight: 700;
      padding: 1px 6px;
      border-radius: var(--radius-pill);
      text-transform: uppercase;
    }

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

    .nav-links li a {
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-muted);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      display: inline-block;
      white-space: nowrap;
    }

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

    .header-actions {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-size: 0.95rem;
      font-weight: 700;
      padding: 10px 22px;
      border-radius: var(--radius-md);
      cursor: pointer;
      border: 2px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
      text-align: center;
    }

    .btn-primary {
      background-color: var(--accent);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(255, 71, 87, 0.35);
    }

    .btn-primary:hover {
      background-color: var(--accent-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 71, 87, 0.45);
    }

    .btn-secondary {
      background-color: var(--primary);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
    }

    .btn-secondary:hover {
      background-color: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
    }

    .btn-outline {
      border-color: var(--primary);
      color: var(--primary);
      background-color: transparent;
    }

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

    .btn-accent {
      background: linear-gradient(135deg, var(--contrast-yellow) 0%, var(--accent-warm) 100%);
      color: #0f172a;
      box-shadow: 0 4px 14px rgba(255, 165, 2, 0.35);
    }

    .btn-accent:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 165, 2, 0.5);
    }

    .nav-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
      color: var(--text-main);
    }

    /* 首屏 Hero 区域 (严禁出现图片，采用现代撞色色块与数据图文构成) */
    .hero-section {
      position: relative;
      padding: 60px 0 80px;
      background: linear-gradient(145deg, #ffffff 0%, #f0f7ff 50%, #fff5f5 100%);
      border-bottom: 2px solid var(--border-color);
      overflow: hidden;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background-color: #ffffff;
      border: 2px solid var(--contrast-purple);
      color: var(--contrast-purple);
      padding: 6px 16px;
      border-radius: var(--radius-pill);
      font-size: 0.88rem;
      font-weight: 700;
      box-shadow: 0 4px 12px rgba(108, 92, 231, 0.15);
      margin-bottom: 20px;
    }

    .hero-badge span {
      display: inline-block;
      width: 8px;
      height: 8px;
      background-color: var(--contrast-green);
      border-radius: 50%;
    }

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

    .hero-content h1 {
      font-size: 2.55rem;
      line-height: 1.25;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 18px;
      letter-spacing: -0.5px;
    }

    .hero-content h1 .highlight-blue {
      color: var(--primary);
      text-decoration: underline;
      text-decoration-color: var(--contrast-cyan);
      text-decoration-thickness: 6px;
      text-underline-offset: 4px;
    }

    .hero-content h1 .highlight-red {
      color: var(--accent);
    }

    .hero-desc {
      font-size: 1.1rem;
      color: var(--text-muted);
      margin-bottom: 28px;
      line-height: 1.7;
    }

    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 36px;
    }

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

    .chip-tag {
      font-size: 0.82rem;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: var(--radius-sm);
      background: #ffffff;
      border: 1px solid var(--border-color);
      color: var(--text-muted);
    }

    /* 首屏纯CSS构建的科技感数据画板 (代替图片) */
    .hero-dashboard-mockup {
      background: #ffffff;
      border: 3px solid var(--text-main);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: 10px 10px 0px var(--text-main);
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .mockup-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-bottom: 14px;
      border-bottom: 2px dashed var(--border-color);
    }

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

    .dot {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      border: 1px solid #000000;
    }

    .dot-r { background-color: var(--accent); }
    .dot-y { background-color: var(--contrast-yellow); }
    .dot-g { background-color: var(--contrast-green); }

    .mockup-status {
      font-size: 0.78rem;
      font-weight: 800;
      background-color: var(--primary-light);
      color: var(--primary);
      padding: 3px 10px;
      border-radius: var(--radius-pill);
    }

    .mockup-cards {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }

    .m-card {
      padding: 14px;
      border-radius: var(--radius-md);
      border: 2px solid var(--text-main);
      display: flex;
      flex-direction: column;
      gap: 4px;
    }

    .m-card-1 { background-color: #fff9e6; }
    .m-card-2 { background-color: #e6f7ff; }
    .m-card-3 { background-color: #f6ffed; }
    .m-card-4 { background-color: #fff0f6; }

    .m-card-num {
      font-size: 1.4rem;
      font-weight: 900;
      color: var(--text-main);
    }

    .m-card-lbl {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--text-muted);
    }

    .mockup-banner-alert {
      background: linear-gradient(90deg, var(--contrast-purple) 0%, var(--primary) 100%);
      color: #ffffff;
      padding: 12px 16px;
      border-radius: var(--radius-md);
      font-size: 0.86rem;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

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

    .section-alt {
      background-color: var(--bg-alt);
    }

    .section-colored {
      background: linear-gradient(180deg, #ffffff 0%, #f3f4f6 100%);
    }

    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 50px;
    }

    .section-kicker {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--accent);
      background-color: #fff0f2;
      padding: 4px 14px;
      border-radius: var(--radius-pill);
      margin-bottom: 12px;
      border: 1px solid rgba(255, 71, 87, 0.2);
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 850;
      color: var(--text-main);
      margin-bottom: 14px;
      line-height: 1.3;
    }

    .section-subtitle {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 统计指标带 */
    .stats-bar {
      margin-top: -30px;
      position: relative;
      z-index: 10;
      margin-bottom: 50px;
    }

    .stats-container {
      background: #ffffff;
      border: 3px solid var(--text-main);
      border-radius: var(--radius-lg);
      padding: 26px 30px;
      box-shadow: 8px 8px 0px var(--text-main);
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .stat-item {
      display: flex;
      flex-direction: column;
      border-right: 2px solid var(--border-color);
      padding-right: 15px;
    }

    .stat-item:last-child {
      border-right: none;
    }

    .stat-val {
      font-size: 2rem;
      font-weight: 900;
      color: var(--primary-dark);
      line-height: 1.1;
    }

    .stat-val span {
      color: var(--accent);
    }

    .stat-desc {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-muted);
      margin-top: 4px;
    }

    /* 多模型聚合卡片 */
    .model-pills-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-bottom: 40px;
    }

    .model-pill {
      background: #ffffff;
      border: 2px solid var(--text-main);
      padding: 8px 16px;
      border-radius: var(--radius-md);
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-main);
      box-shadow: 3px 3px 0px var(--text-main);
      transition: var(--transition);
    }

    .model-pill:hover {
      background-color: var(--contrast-yellow);
      transform: translate(-2px, -2px);
      box-shadow: 5px 5px 0px var(--text-main);
    }

    /* 服务能力与场景矩阵 (撞色卡片) */
    .cards-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .cards-grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .feature-card {
      background-color: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: 6px 6px 0px var(--text-main);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .feature-card:hover {
      transform: translate(-3px, -3px);
      box-shadow: 9px 9px 0px var(--text-main);
    }

    .card-icon-tag {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      border-radius: var(--radius-md);
      border: 2px solid var(--text-main);
      font-weight: 900;
      font-size: 1.1rem;
      margin-bottom: 16px;
    }

    .icon-bg-blue { background-color: #bfdbfe; color: #1e3a8a; }
    .icon-bg-red { background-color: #fecdd3; color: #9f1239; }
    .icon-bg-yellow { background-color: #fef08a; color: #854d0e; }
    .icon-bg-green { background-color: #bbf7d0; color: #14532d; }
    .icon-bg-purple { background-color: #e9d5ff; color: #581c87; }
    .icon-bg-cyan { background-color: #a5f3fc; color: #164e63; }

    .feature-card h3 {
      font-size: 1.2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .feature-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .feature-tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .f-subtag {
      font-size: 0.75rem;
      font-weight: 700;
      background-color: var(--bg-alt);
      border: 1px solid var(--border-color);
      padding: 2px 8px;
      border-radius: 4px;
      color: var(--text-light);
    }

    /* 对比评测表格与卡片 */
    .review-score-banner {
      background: linear-gradient(135deg, #2563eb 0%, #6c5ce7 100%);
      color: #ffffff;
      border: 3px solid var(--text-main);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: 8px 8px 0px var(--text-main);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      margin-bottom: 30px;
    }

    .score-left h3 {
      font-size: 1.6rem;
      font-weight: 900;
      margin-bottom: 6px;
    }

    .score-left p {
      font-size: 0.95rem;
      opacity: 0.9;
    }

    .score-right {
      display: flex;
      align-items: center;
      gap: 16px;
      background: rgba(255, 255, 255, 0.15);
      padding: 12px 24px;
      border-radius: var(--radius-md);
      backdrop-filter: blur(5px);
      border: 1px solid rgba(255, 255, 255, 0.3);
    }

    .stars-badge {
      font-size: 1.3rem;
      color: var(--contrast-yellow);
      letter-spacing: 2px;
    }

    .score-val {
      font-size: 2.2rem;
      font-weight: 950;
      line-height: 1;
    }

    .score-val span {
      font-size: 1rem;
      font-weight: 600;
      opacity: 0.8;
    }

    .table-responsive {
      width: 100%;
      overflow-x: auto;
      border-radius: var(--radius-md);
      border: 2px solid var(--text-main);
      box-shadow: 6px 6px 0px var(--text-main);
      background-color: #ffffff;
    }

    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.92rem;
    }

    .custom-table th, 
    .custom-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }

    .custom-table th {
      background-color: var(--bg-alt);
      font-weight: 800;
      color: var(--text-main);
      font-size: 0.95rem;
    }

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

    .custom-table .highlight-col {
      background-color: #f0f7ff;
      font-weight: 700;
      color: var(--primary-dark);
      border-left: 2px solid var(--primary);
      border-right: 2px solid var(--primary);
    }

    .badge-win {
      display: inline-block;
      background-color: var(--accent);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 800;
      padding: 2px 8px;
      border-radius: var(--radius-pill);
      margin-left: 6px;
    }

    /* 案例中心 */
    .case-gallery-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
      margin-bottom: 30px;
    }

    .case-item-card {
      background: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 6px 6px 0px var(--text-main);
      display: flex;
      flex-direction: column;
    }

    .case-img-wrap {
      background: #e2e8f0;
      width: 100%;
      max-height: 280px;
      overflow: hidden;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

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

    .case-body {
      padding: 20px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .case-body h4 {
      font-size: 1.15rem;
      font-weight: 800;
    }

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

    .banner-showcase-row {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      margin-top: 20px;
    }

    .banner-box {
      border: 2px solid var(--text-main);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 4px 4px 0px var(--text-main);
    }

    /* 智能流程与步骤 */
    .process-steps-wrap {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-card {
      background-color: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: var(--radius-md);
      padding: 24px 18px;
      box-shadow: 5px 5px 0px var(--text-main);
      position: relative;
    }

    .step-number {
      font-size: 2.2rem;
      font-weight: 950;
      color: var(--accent);
      line-height: 1;
      margin-bottom: 12px;
    }

    .step-card h4 {
      font-size: 1.1rem;
      font-weight: 800;
      margin-bottom: 8px;
    }

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

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

    .testimonial-card {
      background: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: 6px 6px 0px var(--text-main);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .t-quote {
      font-size: 0.92rem;
      color: var(--text-main);
      line-height: 1.6;
      margin-bottom: 20px;
      font-weight: 500;
    }

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

    .t-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      border: 2px solid var(--text-main);
    }

    .t-avatar-1 { background-color: var(--accent); }
    .t-avatar-2 { background-color: var(--contrast-purple); }
    .t-avatar-3 { background-color: var(--contrast-green); }
    .t-avatar-4 { background-color: var(--contrast-yellow); color: #000; }
    .t-avatar-5 { background-color: var(--contrast-cyan); color: #000; }
    .t-avatar-6 { background-color: var(--accent-warm); }

    .t-meta h5 {
      font-size: 0.95rem;
      font-weight: 800;
    }

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

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

    .faq-item {
      background-color: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: var(--radius-md);
      box-shadow: 4px 4px 0px var(--text-main);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-header {
      padding: 18px 22px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-weight: 800;
      font-size: 1rem;
      color: var(--text-main);
      user-select: none;
      background-color: #ffffff;
    }

    .faq-header:hover {
      background-color: var(--primary-light);
    }

    .faq-icon {
      width: 24px;
      height: 24px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1.2rem;
      color: var(--primary);
      transition: transform 0.25s ease;
    }

    .faq-content {
      padding: 0 22px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      background-color: #fafafa;
    }

    .faq-item.active .faq-content {
      padding: 16px 22px 20px;
      max-height: 300px;
      border-top: 1px solid var(--border-color);
    }

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

    /* 表单与需求匹配 */
    .form-contact-wrap {
      background: #ffffff;
      border: 3px solid var(--text-main);
      border-radius: var(--radius-lg);
      box-shadow: 8px 8px 0px var(--text-main);
      display: grid;
      grid-template-columns: 1fr 1fr;
      overflow: hidden;
    }

    .form-info-col {
      background: linear-gradient(145deg, #1e293b 0%, #0f172a 100%);
      color: #ffffff;
      padding: 40px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .form-info-col h3 {
      font-size: 1.8rem;
      font-weight: 900;
      margin-bottom: 12px;
      color: #ffffff;
    }

    .form-info-col p {
      font-size: 0.95rem;
      color: #94a3b8;
      line-height: 1.6;
      margin-bottom: 24px;
    }

    .contact-badge-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-bottom: 24px;
    }

    .c-badge {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.9rem;
      color: #e2e8f0;
    }

    .qr-box-wrap {
      display: flex;
      align-items: center;
      gap: 16px;
      background: rgba(255, 255, 255, 0.08);
      padding: 14px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.15);
    }

    .qr-box-wrap img {
      width: 80px;
      height: 80px;
      border-radius: var(--radius-sm);
      background: #ffffff;
    }

    .form-input-col {
      padding: 40px;
      background-color: #ffffff;
    }

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

    .form-label {
      display: block;
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.95rem;
      border: 2px solid var(--border-strong);
      border-radius: var(--radius-md);
      background-color: var(--bg-base);
      color: var(--text-main);
      outline: none;
      transition: var(--transition);
      font-family: inherit;
    }

    .form-control:focus {
      border-color: var(--primary);
      background-color: #ffffff;
      box-shadow: 0 0 0 4px var(--primary-light);
    }

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

    /* 文章列表短代码区域与资讯模块 */
    .news-articles-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 24px;
    }

    .news-box {
      background: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: 6px 6px 0px var(--text-main);
    }

    .news-box h3 {
      font-size: 1.25rem;
      font-weight: 850;
      margin-bottom: 16px;
      border-bottom: 2px solid var(--border-color);
      padding-bottom: 10px;
    }

    .news-link-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .news-link-list li a {
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .news-link-list li a:hover {
      color: var(--primary);
      text-decoration: underline;
    }

    /* 加盟代理与盈利专区 */
    .partner-banner {
      background: linear-gradient(135deg, #fff1f2 0%, #ffe4e6 50%, #fecdd3 100%);
      border: 3px solid var(--accent);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: 8px 8px 0px var(--accent);
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 30px;
      align-items: center;
    }

    .partner-left h3 {
      font-size: 1.8rem;
      font-weight: 900;
      color: var(--accent-hover);
      margin-bottom: 12px;
    }

    .partner-points {
      list-style: none;
      margin-top: 14px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .partner-points li {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* 底部友情链接与主页脚 */
    .site-footer {
      background-color: #0f172a;
      color: #cbd5e1;
      padding: 60px 0 30px;
      border-top: 4px solid var(--primary);
    }

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

    .footer-brand h4 {
      color: #ffffff;
      font-size: 1.3rem;
      font-weight: 900;
      margin-bottom: 12px;
    }

    .footer-brand p {
      font-size: 0.88rem;
      color: #94a3b8;
      line-height: 1.6;
    }

    .footer-links-col h5 {
      color: #ffffff;
      font-size: 1rem;
      font-weight: 800;
      margin-bottom: 16px;
    }

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

    .footer-links-list li a {
      color: #94a3b8;
      font-size: 0.88rem;
    }

    .footer-links-list li a:hover {
      color: #ffffff;
    }

    .friend-links-box {
      background: #1e293b;
      padding: 20px;
      border-radius: var(--radius-md);
      border: 1px solid #334155;
      margin-bottom: 30px;
    }

    .friend-links-title {
      font-size: 0.95rem;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 12px;
    }

    .friend-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .friend-links-wrap a {
      color: #38bdf8;
      font-size: 0.86rem;
      background: rgba(56, 189, 248, 0.1);
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(56, 189, 248, 0.2);
    }

    .friend-links-wrap a:hover {
      background: #38bdf8;
      color: #0f172a;
    }

    .footer-bottom {
      border-top: 1px solid #334155;
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 0.85rem;
      color: #64748b;
    }

    /* 浮动客服挂件与返回顶部 */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 99;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      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: var(--transition);
      font-size: 1.1rem;
      color: var(--text-main);
    }

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

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

    .float-kefu:hover {
      background-color: var(--accent-hover);
      color: #ffffff;
    }

    /* 响应式调整 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .cards-grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .cards-grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .stats-container {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-steps-wrap {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top {
        grid-template-columns: repeat(2, 1fr);
      }
      .partner-banner {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background-color: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 2px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }

      .nav-links.show {
        display: flex;
      }

      .nav-toggle {
        display: block;
      }

      .hero-content h1 {
        font-size: 1.9rem;
      }

      .cards-grid-3, 
      .cards-grid-2,
      .testimonial-grid,
      .case-gallery-grid,
      .banner-showcase-row,
      .news-articles-grid,
      .form-contact-wrap {
        grid-template-columns: 1fr;
      }

      .stats-container {
        grid-template-columns: 1fr;
      }

      .stat-item {
        border-right: none;
        border-bottom: 2px solid var(--border-color);
        padding-bottom: 12px;
      }

      .stat-item:last-child {
        border-bottom: none;
      }

      .process-steps-wrap {
        grid-template-columns: 1fr;
      }

      .footer-top {
        grid-template-columns: 1fr;
      }

      .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
      }
    }