:root {
      --bg-main: #fbfbf7;
      --bg-card: #ffffff;
      --text-main: #18191f;
      --text-muted: #575a6b;
      --primary-coral: #ff5757;
      --primary-cyan: #00d2d3;
      --primary-yellow: #ffc93c;
      --primary-violet: #6c5ce7;
      --border-dark: #1e2029;
      --shadow-neobrutal: 5px 5px 0px #1e2029;
      --shadow-neobrutal-sm: 3px 3px 0px #1e2029;
      --shadow-hover: 7px 7px 0px #1e2029;
      --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 {
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
      position: relative;
      background-image: 
        radial-gradient(circle at 15% 15%, rgba(255, 87, 87, 0.08) 0%, transparent 25%),
        radial-gradient(circle at 85% 35%, rgba(0, 210, 211, 0.08) 0%, transparent 30%),
        radial-gradient(circle at 40% 75%, rgba(255, 201, 60, 0.08) 0%, transparent 28%),
        radial-gradient(circle at 80% 90%, rgba(108, 92, 231, 0.06) 0%, transparent 25%);
      background-attachment: fixed;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

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

    .section {
      padding: 70px 0;
      position: relative;
    }

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

    .tag-badge {
      display: inline-block;
      padding: 5px 14px;
      background: var(--primary-yellow);
      border: 2px solid var(--border-dark);
      border-radius: 99px;
      font-weight: 700;
      font-size: 0.85rem;
      margin-bottom: 12px;
      box-shadow: 2px 2px 0 var(--border-dark);
      transform: rotate(-1.5deg);
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--text-main);
      letter-spacing: -0.5px;
      margin-bottom: 12px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 760px;
      margin: 0 auto;
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      padding: 13px 28px;
      border-radius: var(--radius-md);
      border: 2px solid var(--border-dark);
      box-shadow: var(--shadow-neobrutal);
      cursor: pointer;
      transition: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
      text-align: center;
      user-select: none;
    }

    .btn:hover {
      transform: translate(-2px, -2px);
      box-shadow: var(--shadow-hover);
    }

    .btn:active {
      transform: translate(2px, 2px);
      box-shadow: 1px 1px 0 var(--border-dark);
    }

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

    .btn-yellow {
      background: var(--primary-yellow);
      color: var(--text-main);
    }

    .btn-cyan {
      background: var(--primary-cyan);
      color: var(--text-main);
    }

    .btn-white {
      background: #ffffff;
      color: var(--text-main);
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(251, 251, 247, 0.94);
      backdrop-filter: blur(10px);
      border-bottom: 2px solid var(--border-dark);
    }

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

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

    .brand-logo-wrap {
      max-width: 140px;
      display: flex;
      align-items: center;
    }

    .brand-title {
      font-size: 1.35rem;
      font-weight: 900;
      background: linear-gradient(135deg, #18191f, #ff5757);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

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

    .nav-links li a {
      font-weight: 700;
      font-size: 0.95rem;
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      transition: background 0.15s ease, transform 0.15s ease;
      display: inline-block;
    }

    .nav-links li a:hover {
      background: var(--primary-yellow);
      transform: rotate(-1deg);
    }

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

    .mobile-menu-btn {
      display: none;
      background: var(--primary-yellow);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-sm);
      box-shadow: 2px 2px 0 var(--border-dark);
      padding: 8px 12px;
      font-weight: 800;
      cursor: pointer;
    }

    /* 首屏无图 HERO */
    .hero-section {
      padding: 60px 0 80px 0;
      position: relative;
    }

    .hero-card {
      background: #ffffff;
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 56px 40px;
      box-shadow: var(--shadow-neobrutal);
      position: relative;
      overflow: hidden;
    }

    .hero-card::before {
      content: "";
      position: absolute;
      top: -30px;
      right: -30px;
      width: 120px;
      height: 120px;
      background: var(--primary-cyan);
      border-radius: 50%;
      border: 2px solid var(--border-dark);
      opacity: 0.25;
      pointer-events: none;
    }

    .hero-card::after {
      content: "";
      position: absolute;
      bottom: -40px;
      left: -40px;
      width: 160px;
      height: 160px;
      background: var(--primary-coral);
      border-radius: 50%;
      border: 2px solid var(--border-dark);
      opacity: 0.15;
      pointer-events: none;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--primary-coral);
      color: #fff;
      font-weight: 800;
      padding: 6px 16px;
      border: 2px solid var(--border-dark);
      border-radius: 99px;
      box-shadow: 2px 2px 0 var(--border-dark);
      margin-bottom: 24px;
      font-size: 0.9rem;
    }

    .hero-title {
      font-size: 2.8rem;
      line-height: 1.25;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 24px;
      letter-spacing: -0.5px;
    }

    .hero-desc {
      font-size: 1.2rem;
      line-height: 1.7;
      color: var(--text-muted);
      max-width: 860px;
      margin-bottom: 36px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
      margin-bottom: 48px;
    }

    .hero-btn-prominent {
      font-size: 1.15rem;
      padding: 16px 36px;
      background: var(--primary-yellow);
      color: var(--text-main);
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-neobrutal);
    }

    .hero-btn-secondary {
      font-size: 1.05rem;
      padding: 15px 30px;
      background: #ffffff;
      color: var(--text-main);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-neobrutal-sm);
    }

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

    .hero-feature-item {
      background: var(--bg-main);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 20px;
      box-shadow: var(--shadow-neobrutal-sm);
    }

    .hero-feature-tag {
      font-size: 0.75rem;
      font-weight: 800;
      padding: 2px 8px;
      border: 1px solid var(--border-dark);
      border-radius: 4px;
      background: var(--primary-cyan);
      display: inline-block;
      margin-bottom: 8px;
    }

    .hero-feature-title {
      font-size: 1.1rem;
      font-weight: 800;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .hero-feature-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 指标统计栏 */
    .metrics-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: -30px;
      position: relative;
      z-index: 10;
    }

    .metric-card {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-neobrutal);
      text-align: center;
      transition: transform 0.2s ease;
    }

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

    .metric-num {
      font-size: 2.3rem;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .metric-title {
      font-weight: 700;
      font-size: 0.95rem;
      color: var(--text-muted);
    }

    /* 平台介绍 */
    .about-box {
      background: #ffffff;
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 44px;
      box-shadow: var(--shadow-neobrutal);
    }

    .about-intro-p {
      font-size: 1.12rem;
      line-height: 1.8;
      color: var(--text-main);
      margin-bottom: 32px;
    }

    .about-pillars {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .pillar-card {
      background: var(--bg-main);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-neobrutal-sm);
    }

    .pillar-card h3 {
      font-size: 1.2rem;
      font-weight: 800;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .pillar-icon {
      width: 14px;
      height: 14px;
      border-radius: 50%;
      display: inline-block;
      border: 2px solid var(--border-dark);
    }

    .pillar-icon.red { background: var(--primary-coral); }
    .pillar-icon.yellow { background: var(--primary-yellow); }
    .pillar-icon.cyan { background: var(--primary-cyan); }

    /* 模型矩阵徽章云 */
    .models-cloud {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-neobrutal);
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 30px;
    }

    .model-chip {
      background: var(--bg-main);
      border: 1.5px solid var(--border-dark);
      border-radius: 30px;
      padding: 6px 16px;
      font-size: 0.9rem;
      font-weight: 700;
      transition: all 0.2s ease;
      display: inline-block;
    }

    .model-chip:hover {
      background: var(--primary-yellow);
      transform: scale(1.05) rotate(-1deg);
    }

    /* 服务与一站式制作卡片网格 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-neobrutal);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.2s ease;
    }

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

    .service-badge {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 800;
      padding: 3px 10px;
      border: 1.5px solid var(--border-dark);
      border-radius: 6px;
      margin-bottom: 14px;
      align-self: flex-start;
    }

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

    .service-card p {
      font-size: 0.93rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
    }

    .service-card-meta {
      border-top: 2px dashed #e1e3ea;
      padding-top: 14px;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary-violet);
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

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

    .process-card {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-neobrutal);
      position: relative;
    }

    .process-step-num {
      position: absolute;
      top: -14px;
      right: 18px;
      background: var(--primary-yellow);
      border: 2px solid var(--border-dark);
      border-radius: 50%;
      width: 32px;
      height: 32px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 0.95rem;
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    .process-card h3 {
      font-size: 1.15rem;
      font-weight: 800;
      margin-bottom: 10px;
    }

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

    /* 案例中心图文排版 */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .case-card {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-neobrutal);
      transition: transform 0.2s ease;
    }

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

    .case-img-box {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #eef1f6;
      border-bottom: 2px solid var(--border-dark);
      overflow: hidden;
    }

    .case-img-box.square {
      aspect-ratio: 1 / 1;
    }

    .case-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.3s ease;
    }

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

    .case-content {
      padding: 22px;
    }

    .case-content h3 {
      font-size: 1.15rem;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .case-content p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.55;
      margin-bottom: 12px;
    }

    /* 对比评测表格与卡片 */
    .benchmark-score-banner {
      background: var(--primary-yellow);
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-neobrutal);
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      margin-bottom: 36px;
    }

    .benchmark-score-info {
      display: flex;
      align-items: baseline;
      gap: 16px;
    }

    .benchmark-score-num {
      font-size: 3.5rem;
      font-weight: 900;
      line-height: 1;
      color: var(--text-main);
    }

    .benchmark-score-text {
      font-size: 1.1rem;
      font-weight: 800;
    }

    .table-wrapper {
      width: 100%;
      overflow-x: auto;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-neobrutal);
      background: #ffffff;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.95rem;
    }

    .compare-table th, .compare-table td {
      padding: 18px 20px;
      border-bottom: 1px solid #eaecee;
      border-right: 1px solid #eaecee;
    }

    .compare-table th {
      background: #f7f8fc;
      font-weight: 800;
      color: var(--text-main);
      border-bottom: 2px solid var(--border-dark);
    }

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

    .compare-table th:last-child, .compare-table td:last-child {
      border-right: none;
    }

    .compare-table tr.highlight-row {
      background: #fffdf5;
    }

    .status-badge {
      display: inline-block;
      padding: 3px 10px;
      font-size: 0.8rem;
      font-weight: 800;
      border-radius: 4px;
      border: 1px solid var(--border-dark);
    }

    .badge-win { background: var(--primary-cyan); color: var(--text-main); }
    .badge-neutral { background: #e2e8f0; color: #4a5568; }

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

    .review-card {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-neobrutal);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-stars {
      color: #ff9f1a;
      font-size: 1.1rem;
      margin-bottom: 12px;
      letter-spacing: 2px;
    }

    .review-text {
      font-size: 0.94rem;
      line-height: 1.65;
      color: var(--text-main);
      margin-bottom: 20px;
      font-style: italic;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f0f0f4;
      padding-top: 14px;
    }

    .review-avatar-char {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--primary-yellow);
      border: 2px solid var(--border-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1.1rem;
    }

    .review-author-name {
      font-weight: 800;
      font-size: 0.95rem;
    }

    .review-author-role {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* FAQ 折叠手风琴 */
    .faq-wrapper {
      max-width: 920px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-neobrutal-sm);
      overflow: hidden;
      transition: all 0.2s ease;
    }

    .faq-question {
      padding: 18px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-weight: 800;
      font-size: 1.05rem;
      cursor: pointer;
      user-select: none;
      background: #ffffff;
    }

    .faq-icon {
      width: 26px;
      height: 26px;
      border-radius: 50%;
      background: var(--bg-main);
      border: 1.5px solid var(--border-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      transition: transform 0.2s ease;
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      background: var(--primary-coral);
      color: #ffffff;
    }

    .faq-answer {
      display: none;
      padding: 0 24px 20px 24px;
      font-size: 0.94rem;
      line-height: 1.7;
      color: var(--text-muted);
      border-top: 1px dashed #e2e8f0;
      padding-top: 16px;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

    /* 需求匹配与表单板块 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: start;
    }

    .contact-info-card {
      background: #ffffff;
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-neobrutal);
    }

    .contact-info-card h3 {
      font-size: 1.6rem;
      font-weight: 900;
      margin-bottom: 18px;
    }

    .contact-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-bottom: 28px;
    }

    .contact-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1rem;
      font-weight: 700;
    }

    .contact-badge {
      background: var(--primary-cyan);
      border: 1.5px solid var(--border-dark);
      padding: 4px 10px;
      border-radius: 6px;
      font-size: 0.85rem;
    }

    .qr-box {
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 16px;
      display: inline-block;
      background: var(--bg-main);
      box-shadow: var(--shadow-neobrutal-sm);
      text-align: center;
    }

    .qr-box img {
      max-width: 140px;
      height: auto;
      display: block;
      margin: 0 auto 8px auto;
      border-radius: 4px;
    }

    .form-box {
      background: #ffffff;
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-neobrutal);
    }

    .form-box h3 {
      font-size: 1.5rem;
      font-weight: 900;
      margin-bottom: 8px;
    }

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

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

    .form-label {
      display: block;
      font-weight: 800;
      font-size: 0.9rem;
      margin-bottom: 8px;
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      background: #fafafa;
      transition: all 0.2s ease;
      color: var(--text-main);
      font-family: inherit;
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      outline: none;
      background: #ffffff;
      border-color: var(--primary-coral);
      box-shadow: 3px 3px 0 var(--border-dark);
    }

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

    /* 文章与资讯专栏 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .article-item-card {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-neobrutal-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: transform 0.2s ease;
    }

    .article-item-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-neobrutal);
    }

    .article-title {
      font-size: 1.1rem;
      font-weight: 800;
      margin-bottom: 12px;
      line-height: 1.45;
    }

    .article-link {
      font-weight: 700;
      font-size: 0.88rem;
      color: var(--primary-coral);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 加盟代理模块 */
    .partner-banner {
      background: linear-gradient(135deg, #fff3b0 0%, #caefd7 100%);
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 48px;
      box-shadow: var(--shadow-neobrutal);
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 30px;
      align-items: center;
    }

    .partner-title {
      font-size: 2rem;
      font-weight: 900;
      margin-bottom: 14px;
    }

    .partner-desc {
      font-size: 1.05rem;
      color: var(--text-main);
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .partner-bullets {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      list-style: none;
    }

    .partner-bullets li {
      background: #ffffff;
      border: 1.5px solid var(--border-dark);
      padding: 6px 14px;
      border-radius: 30px;
      font-weight: 800;
      font-size: 0.88rem;
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    /* 宣传图展示横幅 */
    .banner-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 30px;
    }

    .banner-frame {
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-neobrutal-sm);
      background: #ffffff;
    }

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

    /* 页脚设计 */
    .site-footer {
      background: #18191f;
      color: #ffffff;
      border-top: 4px solid var(--border-dark);
      padding: 60px 0 24px 0;
      margin-top: 60px;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      padding-bottom: 40px;
      border-bottom: 1px solid #333642;
    }

    .footer-brand-desc {
      color: #a0a4b8;
      font-size: 0.92rem;
      line-height: 1.7;
      margin-top: 14px;
      max-width: 340px;
    }

    .footer-col h4 {
      font-size: 1.1rem;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 18px;
      position: relative;
      display: inline-block;
    }

    .footer-col h4::after {
      content: "";
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 24px;
      height: 3px;
      background: var(--primary-coral);
    }

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

    .footer-links a {
      color: #cfd2de;
      font-size: 0.9rem;
      transition: color 0.15s ease;
    }

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

    .footer-qr-inner {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .footer-qr-img {
      width: 90px;
      height: 90px;
      background: #ffffff;
      padding: 6px;
      border-radius: 8px;
    }

    .footer-qr-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .footer-qr-text {
      font-size: 0.85rem;
      color: #a0a4b8;
      line-height: 1.5;
    }

    .footer-links-bar {
      padding: 24px 0;
      border-bottom: 1px solid #292c36;
      font-size: 0.88rem;
    }

    .footer-links-title {
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 10px;
    }

    .friend-links-group {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .friend-links-group a {
      color: #9297ab;
      transition: color 0.2s ease;
    }

    .friend-links-group a:hover {
      color: var(--primary-cyan);
    }

    .footer-bottom {
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.85rem;
      color: #787d91;
    }

    /* 浮动工具栏与客服 */
    .float-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      border: 2px solid var(--border-dark);
      background: #ffffff;
      box-shadow: var(--shadow-neobrutal-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-weight: 900;
      font-size: 1.1rem;
      transition: all 0.2s ease;
      position: relative;
    }

    .float-btn:hover {
      transform: scale(1.08);
    }

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

    .float-btn.top {
      background: var(--primary-yellow);
    }

    .float-qr-popup {
      position: absolute;
      right: 64px;
      bottom: 0;
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 14px;
      box-shadow: var(--shadow-neobrutal);
      display: none;
      width: 140px;
      text-align: center;
    }

    .float-qr-popup img {
      width: 100%;
      height: auto;
      display: block;
      border-radius: 4px;
      margin-bottom: 6px;
    }

    .float-qr-popup span {
      font-size: 0.75rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .float-btn.kefu:hover .float-qr-popup {
      display: block;
    }

    /* 响应式调整 */
    @media (max-width: 1024px) {
      .hero-features-grid { grid-template-columns: repeat(2, 1fr); }
      .metrics-bar { grid-template-columns: repeat(2, 1fr); }
      .about-pillars { grid-template-columns: 1fr; }
      .services-grid { grid-template-columns: repeat(2, 1fr); }
      .process-container { grid-template-columns: repeat(2, 1fr); }
      .cases-grid { grid-template-columns: repeat(2, 1fr); }
      .reviews-grid { grid-template-columns: repeat(2, 1fr); }
      .contact-grid { grid-template-columns: 1fr; }
      .footer-top { grid-template-columns: 1fr 1fr; }
      .partner-banner { grid-template-columns: 1fr; }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn { display: block; }
      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 2px solid var(--border-dark);
        box-shadow: var(--shadow-neobrutal);
      }
      .nav-links.active { display: flex; }
      .nav-links li { width: 100%; text-align: center; }
      .nav-links li a { display: block; padding: 10px 0; }
      .hero-card { padding: 32px 20px; }
      .hero-title { font-size: 2rem; }
      .hero-desc { font-size: 1rem; }
      .hero-features-grid { grid-template-columns: 1fr; }
      .metrics-bar { grid-template-columns: 1fr; margin-top: 20px; }
      .services-grid { grid-template-columns: 1fr; }
      .process-container { grid-template-columns: 1fr; }
      .cases-grid { grid-template-columns: 1fr; }
      .reviews-grid { grid-template-columns: 1fr; }
      .articles-grid { grid-template-columns: 1fr; }
      .banner-row { grid-template-columns: 1fr; }
      .footer-top { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; text-align: center; }
    }