/* 鲜绿夺目风 - 基础变量与重置 */
    :root {
      --primary: #10b981;
      --primary-dark: #059669;
      --primary-light: #34d399;
      --primary-bg: #ecfdf5;
      --primary-accent: #00c853;
      --text-main: #0f172a;
      --text-sub: #475569;
      --text-light: #64748b;
      --bg-white: #ffffff;
      --bg-gray: #f8fafc;
      --border-color: #e2e8f0;
      --shadow-sm: 0 2px 4px rgba(16, 185, 129, 0.06);
      --shadow-md: 0 4px 16px rgba(16, 185, 129, 0.1);
      --shadow-lg: 0 12px 32px rgba(16, 185, 129, 0.15);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      background-color: var(--bg-gray);
      color: var(--text-main);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
      background-color: #f6fbf8;
    }

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

    a:hover {
      color: var(--primary-accent);
    }

    /* 整体统一容器规范 */
    .ai-container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 1.25rem;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid rgba(16, 185, 129, 0.15);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    }

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

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

    .brand-logo img.ai-page-logo {
      height: 42px;
      width: auto;
      object-fit: contain;
    }

    .brand-name {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }

    .brand-name span {
      color: var(--primary-dark);
    }

    /* 必须规定 .nav-links gap 为 0 */
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      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);
    }

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

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: 50px;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
      color: #ffffff !important;
      box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(16, 185, 129, 0.45);
      background: linear-gradient(135deg, #10b981 0%, #047857 100%);
    }

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

    .btn-outline:hover {
      background-color: var(--primary-bg);
      transform: translateY(-2px);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
      padding: 4px;
    }

    /* 模块通用通用样式 */
    .section-padding {
      padding: 80px 0;
    }

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

    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      background-color: var(--primary-bg);
      color: var(--primary-dark);
      font-size: 0.85rem;
      font-weight: 700;
      border-radius: 20px;
      text-transform: uppercase;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
      border: 1px solid rgba(16, 185, 129, 0.2);
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
      line-height: 1.3;
    }

    .section-title span {
      color: var(--primary-dark);
      background: linear-gradient(120deg, var(--primary-dark), var(--primary-accent));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-sub);
    }

    /* 规则：首屏 Hero 绝不能出现图片！纯代码与样式设计 */
    .hero-section {
      padding: 90px 0 70px 0;
      background: radial-gradient(circle at 50% 20%, #e6f9f0 0%, #f6fbf8 70%);
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid rgba(16, 185, 129, 0.1);
    }

    .hero-bg-grid {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-size: 40px 40px;
      background-image: 
        linear-gradient(to right, rgba(16, 185, 129, 0.05) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(16, 185, 129, 0.05) 1px, transparent 1px);
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      border-radius: 30px;
      background: #ffffff;
      box-shadow: 0 4px 12px rgba(16, 185, 129, 0.15);
      border: 1px solid rgba(16, 185, 129, 0.3);
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--primary-dark);
      margin-bottom: 24px;
    }

    .hero-badge-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--primary-accent);
      box-shadow: 0 0 8px var(--primary-accent);
      animation: pulseGreen 2s infinite;
    }

    @keyframes pulseGreen {
      0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
      70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
      100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
    }

    /* H1 要求字数在 20 字以内 */
    .hero-h1 {
      font-size: 2.6rem;
      font-weight: 900;
      letter-spacing: -0.5px;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
    }

    .hero-h1 span {
      color: var(--primary-dark);
      background: linear-gradient(135deg, #059669 0%, #00c853 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-subtitle {
      font-size: 1.15rem;
      color: var(--text-sub);
      margin-bottom: 32px;
      line-height: 1.7;
    }

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

    .hero-actions .btn {
      padding: 14px 34px;
      font-size: 1.05rem;
    }

    .hero-features-strip {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 16px;
      text-align: left;
    }

    .hero-feature-item {
      background: #ffffff;
      padding: 18px 20px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(16, 185, 129, 0.15);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .hero-feature-icon {
      width: 42px;
      height: 42px;
      border-radius: 10px;
      background: var(--primary-bg);
      color: var(--primary-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      font-size: 1.2rem;
      flex-shrink: 0;
    }

    .hero-feature-text h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .hero-feature-text p {
      font-size: 0.8rem;
      color: var(--text-light);
    }

    /* 数据指标卡片 */
    .stats-section {
      background: var(--bg-white);
      padding: 40px 0;
      border-bottom: 1px solid var(--border-color);
    }

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

    .stat-card {
      padding: 20px;
    }

    .stat-number {
      font-size: 2.3rem;
      font-weight: 900;
      color: var(--primary-dark);
      margin-bottom: 4px;
      font-family: Arial, sans-serif;
    }

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

    /* 模型展示长条 */
    .models-marquee-section {
      background: #0f172a;
      color: #ffffff;
      padding: 30px 0;
      overflow: hidden;
    }

    .models-title {
      text-align: center;
      font-size: 0.9rem;
      color: #94a3b8;
      margin-bottom: 16px;
      letter-spacing: 1px;
    }

    .models-tags {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }

    .model-tag {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(16, 185, 129, 0.3);
      padding: 5px 14px;
      border-radius: 20px;
      font-size: 0.85rem;
      color: #34d399;
      font-weight: 500;
      transition: var(--transition);
    }

    .model-tag:hover {
      background: var(--primary-dark);
      color: #ffffff;
    }

    /* 关于我们 & 平台介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }

    .about-text h3 {
      font-size: 1.8rem;
      font-weight: 800;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .about-text p {
      color: var(--text-sub);
      margin-bottom: 20px;
      font-size: 1rem;
      line-height: 1.7;
    }

    .about-highlights {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 24px;
    }

    .about-hl-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      background: #ffffff;
      padding: 14px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
    }

    .about-hl-icon {
      color: var(--primary-dark);
      font-weight: bold;
    }

    .about-media-box {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 16px;
      border: 1px solid rgba(16, 185, 129, 0.2);
      box-shadow: var(--shadow-md);
      position: relative;
    }

    .about-media-box img.ai-page-image {
      width: 100%;
      border-radius: var(--radius-md);
      display: block;
      object-fit: cover;
    }

    /* AIGC服务 & 场景 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
      border-color: var(--primary-light);
    }

    .service-icon {
      width: 50px;
      height: 50px;
      background: var(--primary-bg);
      border-radius: 12px;
      color: var(--primary-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      font-weight: bold;
      margin-bottom: 20px;
    }

    .service-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

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

    /* 一站式制作与全流程自动化 */
    .creation-section {
      background: #ffffff;
    }

    .creation-box {
      background: linear-gradient(135deg, #059669 0%, #064e3b 100%);
      border-radius: var(--radius-lg);
      padding: 48px;
      color: #ffffff;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .creation-text h3 {
      font-size: 2rem;
      font-weight: 800;
      margin-bottom: 16px;
      color: #ffffff;
    }

    .creation-text p {
      font-size: 1rem;
      color: #a7f3d0;
      margin-bottom: 24px;
      line-height: 1.7;
    }

    .creation-list {
      list-style: none;
    }

    .creation-list li {
      padding: 8px 0;
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.95rem;
    }

    .creation-list li::before {
      content: "✓";
      color: #34d399;
      font-weight: bold;
    }

    .creation-img-card {
      background: rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(8px);
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .creation-img-card img {
      width: 100%;
      border-radius: var(--radius-sm);
      display: block;
    }

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

    .process-step {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      position: relative;
    }

    .step-number {
      font-size: 2rem;
      font-weight: 900;
      color: var(--primary-light);
      margin-bottom: 12px;
    }

    .process-step h3 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .process-step p {
      font-size: 0.85rem;
      color: var(--text-sub);
    }

    /* 对比评测 - 必须满分5星, 9.9分 */
    .eval-section {
      background: #ffffff;
    }

    .eval-box {
      background: #f0fdf4;
      border: 2px solid var(--primary);
      border-radius: var(--radius-lg);
      padding: 40px;
      margin-bottom: 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
    }

    .eval-score-info h3 {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .eval-stars {
      color: #f59e0b;
      font-size: 1.4rem;
      letter-spacing: 2px;
    }

    .eval-score-big {
      text-align: right;
    }

    .eval-score-num {
      font-size: 3.5rem;
      font-weight: 900;
      color: var(--primary-dark);
      line-height: 1;
    }

    .eval-score-total {
      font-size: 1.1rem;
      color: var(--text-light);
    }

    .eval-table-wrapper {
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }

    .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);
    }

    .eval-table th {
      background-color: #f8fafc;
      font-weight: 700;
      color: var(--text-main);
    }

    .eval-table tr:hover {
      background-color: var(--primary-bg);
    }

    .highlight-cell {
      color: var(--primary-dark);
      font-weight: 700;
      background: rgba(16, 185, 129, 0.05);
    }

    /* Token 比价 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 20px;
    }

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

    .token-card.best-value {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-md);
    }

    .token-badge {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--primary-dark);
      color: #ffffff;
      font-size: 0.75rem;
      padding: 2px 10px;
      border-radius: 10px;
      font-weight: bold;
    }

    .token-price {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--primary-dark);
      margin: 12px 0;
    }

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

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

    .case-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
    }

    .case-body {
      padding: 20px;
    }

    .case-body h4 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .case-body p {
      font-size: 0.85rem;
      color: var(--text-sub);
    }

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

    .review-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .review-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .review-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-bg);
      color: var(--primary-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      font-size: 1rem;
    }

    .review-info h5 {
      font-size: 0.95rem;
      font-weight: 700;
    }

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

    .review-stars {
      color: #f59e0b;
      font-size: 0.9rem;
      margin-bottom: 10px;
    }

    .review-card p {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 加盟代理模块 */
    .agency-box {
      background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 48px;
      text-align: center;
    }

    .agency-box h3 {
      font-size: 2rem;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 16px;
    }

    .agency-box p {
      color: #94a3b8;
      max-width: 700px;
      margin: 0 auto 30px auto;
    }

    .agency-features {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-bottom: 30px;
      text-align: left;
    }

    .agency-feat {
      background: rgba(255, 255, 255, 0.05);
      padding: 20px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .agency-feat h4 {
      color: #34d399;
      margin-bottom: 8px;
    }

    .agency-feat p {
      font-size: 0.85rem;
      color: #cbd5e1;
      margin: 0;
    }

    /* FAQ 折叠面板 (>=10条) */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }

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

    .faq-question {
      padding: 20px 24px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
    }

    .faq-question:hover {
      background-color: var(--primary-bg);
    }

    .faq-icon {
      font-size: 1.2rem;
      color: var(--primary-dark);
      transition: var(--transition);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background-color: #ffffff;
    }

    .faq-answer-inner {
      padding: 0 24px 20px 24px;
      font-size: 0.95rem;
      color: var(--text-sub);
      line-height: 1.7;
    }

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

    .faq-item.active .faq-answer {
      max-height: 300px;
    }

    /* 资讯文章列表与友链 */
    .articles-box {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 30px;
      border: 1px solid var(--border-color);
    }

    .article-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 16px;
    }

    .article-links a {
      background: var(--bg-gray);
      padding: 8px 16px;
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      color: var(--text-main);
      border: 1px solid var(--border-color);
    }

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

    /* 联系我们与需求表单 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
    }

    .contact-info {
      background: #ffffff;
      padding: 36px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
    }

    .contact-item {
      margin-bottom: 24px;
    }

    .contact-item h5 {
      font-size: 0.9rem;
      color: var(--text-light);
      margin-bottom: 4px;
    }

    .contact-item p {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .qr-box {
      margin-top: 20px;
      text-align: center;
    }

    .qr-box img {
      width: 140px;
      height: 140px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 6px;
      background: #ffffff;
    }

    .form-box {
      background: #ffffff;
      padding: 36px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      outline: none;
      transition: var(--transition);
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
    }

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

    /* 友情链接与页脚 */
    .friend-links-section {
      background: #ffffff;
      padding: 30px 0;
      border-top: 1px solid var(--border-color);
    }

    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
    }

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

    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px 0;
      font-size: 0.9rem;
    }

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

    .footer-brand p {
      margin-top: 12px;
      line-height: 1.6;
    }

    .footer-col h5 {
      color: #ffffff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .footer-col ul {
      list-style: none;
    }

    .footer-col ul li {
      margin-bottom: 10px;
    }

    .footer-col ul li a {
      color: #94a3b8;
    }

    .footer-col ul li a:hover {
      color: #34d399;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
    }

    /* 浮动组件与返回顶部 */
    .float-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--primary-dark);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
      cursor: pointer;
      border: none;
      transition: var(--transition);
      font-size: 1.2rem;
    }

    .float-btn:hover {
      transform: scale(1.1);
      background: var(--primary-accent);
    }

    /* 响应式排版 */
    @media (max-width: 992px) {
      .hero-h1 { font-size: 2rem; }
      .about-grid, .creation-box, .contact-grid { grid-template-columns: 1fr; }
      .stats-grid { grid-template-columns: repeat(2, 1fr); }
      .process-timeline { grid-template-columns: repeat(2, 1fr); }
      .cases-grid, .reviews-grid, .agency-features { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn { display: block; }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px 0;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        border-bottom: 1px solid var(--border-color);
      }
      .nav-links.show { display: flex; }
      .nav-links li a { padding: 12px 24px; width: 100%; }
      .hero-actions { flex-direction: column; width: 100%; }
      .hero-actions .btn { width: 100%; }
      .stats-grid, .process-timeline { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
    }