/* roulang page: index */
:root {
      --primary: #1B365D;
      --primary-hover: #12243e;
      --accent: #C5A880;
      --accent-hover: #b3946a;
      --dark-surface: #0F1E36;
      --dark-card: #182844;
      --light-surface: #F8FAFC;
      --white: #FFFFFF;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-sm: 0 2px 4px rgba(15, 30, 54, 0.04);
      --shadow-md: 0 10px 25px -5px rgba(15, 30, 54, 0.08);
      --shadow-lg: 0 20px 35px -10px rgba(15, 30, 54, 0.12);
      --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-size: 16px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
      color: var(--text-main);
      background-color: var(--white);
      -webkit-font-smoothing: antialiased;
    }

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

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部导航系统 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: var(--white);
      box-shadow: var(--shadow-sm);
    }

    .top-bar {
      background: var(--primary);
      color: #cbd5e1;
      font-size: 0.8125rem;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .top-contact-list {
      display: flex;
      gap: 20px;
      list-style: none;
    }

    .main-nav-wrapper {
      padding: 14px 0;
      background: var(--white);
    }

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

    .site-logo {
      font-size: 1.4rem;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .site-logo span {
      background: var(--primary);
      color: var(--white);
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      font-size: 0.85rem;
      font-weight: 600;
      letter-spacing: 0;
    }

    .nav-links {
      display: flex;
      gap: 24px;
      list-style: none;
      align-items: center;
    }

    .nav-link {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-main);
      position: relative;
      padding: 6px 0;
    }

    .nav-link:hover, .nav-link.active {
      color: var(--accent);
    }

    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--accent);
      transition: var(--transition);
    }

    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }

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

    .btn-primary {
      background-color: var(--accent);
      color: var(--white);
      border-color: var(--accent);
    }

    .btn-primary:hover {
      background-color: var(--accent-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(197, 168, 128, 0.35);
    }

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

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

    .btn-outline-white {
      background-color: transparent;
      color: var(--white);
      border-color: rgba(255, 255, 255, 0.4);
    }

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

    /* 移动端菜单切换按钮 */
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--primary);
      cursor: pointer;
    }

    /* 统一 Section 基础样式 */
    section {
      padding: 90px 0;
      scroll-margin-top: 80px;
    }

    .section-light {
      background-color: var(--light-surface);
    }

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

    .section-dark {
      background-color: var(--dark-surface);
      color: var(--white);
    }

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

    .section-subtitle {
      font-size: 0.875rem;
      font-weight: 700;
      letter-spacing: 2px;
      color: var(--accent);
      text-transform: uppercase;
      margin-bottom: 12px;
      display: block;
    }

    .section-title {
      font-size: 2.25rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 18px;
      line-height: 1.3;
    }

    .section-dark .section-title {
      color: var(--white);
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.8;
    }

    .section-dark .section-desc {
      color: #94A3B8;
    }

    /* 1. Hero 轮播大图 */
    .hero-section {
      padding: 0;
      position: relative;
      background-color: var(--dark-surface);
      color: var(--white);
      overflow: hidden;
    }

    .hero-slider-container {
      position: relative;
      min-height: 580px;
      display: flex;
    }

    .hero-slide {
      position: absolute;
      inset: 0;
      opacity: 0;
      visibility: hidden;
      transition: opacity 0.8s ease-in-out, visibility 0.8s;
      background-size: cover;
      background-position: center;
      display: flex;
      align-items: center;
    }

    .hero-slide.active {
      opacity: 1;
      visibility: visible;
      position: relative;
    }

    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(15, 30, 54, 0.92) 0%, rgba(15, 30, 54, 0.75) 50%, rgba(15, 30, 54, 0.4) 100%);
    }

    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 720px;
      padding: 80px 0;
    }

    .hero-tag {
      display: inline-block;
      padding: 6px 14px;
      background: rgba(197, 168, 128, 0.2);
      border: 1px solid var(--accent);
      color: var(--accent);
      border-radius: var(--radius-sm);
      font-size: 0.875rem;
      font-weight: 600;
      margin-bottom: 20px;
    }

    .hero-title {
      font-size: 2.85rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 22px;
      letter-spacing: -0.5px;
    }

    .hero-text {
      font-size: 1.125rem;
      color: #cbd5e1;
      line-height: 1.8;
      margin-bottom: 35px;
    }

    .hero-cta-group {
      display: flex;
      gap: 16px;
      align-items: center;
    }

    .hero-dots {
      position: absolute;
      bottom: 30px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 5;
      display: flex;
      gap: 12px;
    }

    .hero-dot {
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.4);
      cursor: pointer;
      border: none;
      transition: var(--transition);
    }

    .hero-dot.active {
      background: var(--accent);
      width: 32px;
      border-radius: 8px;
    }

    /* 2. 品牌与综合介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }

    .about-image-wrapper {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
    }

    .about-image-wrapper img {
      width: 100%;
      height: 440px;
      object-fit: cover;
      transition: var(--transition);
    }

    .about-image-wrapper:hover img {
      transform: scale(1.03);
    }

    .about-badge {
      position: absolute;
      bottom: 24px;
      right: 24px;
      background: var(--primary);
      color: var(--white);
      padding: 16px 20px;
      border-radius: var(--radius-sm);
      border-left: 4px solid var(--accent);
      box-shadow: var(--shadow-md);
    }

    .about-badge-num {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--accent);
      display: block;
      line-height: 1;
    }

    .about-badge-txt {
      font-size: 0.8125rem;
      color: #94a3b8;
    }

    .about-content-list {
      list-style: none;
      margin-top: 24px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .about-content-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 0.95rem;
      color: var(--text-main);
    }

    .about-item-icon {
      width: 22px;
      height: 22px;
      background: rgba(197, 168, 128, 0.15);
      color: var(--accent);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      flex-shrink: 0;
      margin-top: 3px;
    }

    /* 3. 指标看板 */
    .metrics-bar {
      background: var(--primary);
      padding: 45px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      text-align: center;
    }

    .metric-card {
      padding: 10px;
      border-right: 1px solid rgba(255, 255, 255, 0.12);
    }

    .metric-card:last-child {
      border-right: none;
    }

    .metric-value {
      font-size: 2.85rem;
      font-weight: 800;
      color: var(--accent);
      line-height: 1.1;
      margin-bottom: 8px;
    }

    .metric-label {
      font-size: 0.95rem;
      color: #cbd5e1;
      font-weight: 500;
    }

    /* 4. 服务矩阵 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .matrix-card {
      background: var(--white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 35px 30px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .matrix-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: var(--accent);
    }

    .matrix-badge {
      display: inline-block;
      align-self: flex-start;
      padding: 4px 10px;
      background: #f1f5f9;
      color: var(--primary);
      font-size: 0.75rem;
      font-weight: 700;
      border-radius: var(--radius-sm);
      margin-bottom: 15px;
    }

    .matrix-title {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
    }

    .matrix-desc {
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .matrix-features {
      list-style: none;
      border-top: 1px dashed var(--border-color);
      padding-top: 20px;
      margin-bottom: 25px;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .matrix-feature-item {
      font-size: 0.875rem;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .matrix-feature-item::before {
      content: '✓';
      color: var(--accent);
      font-weight: 800;
    }

    /* 5. 核心优势六宫格 */
    .strengths-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .strength-card {
      background: var(--white);
      padding: 32px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

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

    .strength-icon {
      width: 52px;
      height: 52px;
      background: #EFF6FF;
      color: var(--primary);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      font-weight: 800;
      margin-bottom: 20px;
    }

    .strength-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
    }

    .strength-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 6. 深度理念与案例对比 */
    .case-container {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 50px;
      align-items: center;
    }

    .case-left h3 {
      font-size: 1.85rem;
      font-weight: 700;
      color: var(--white);
      margin-bottom: 18px;
      line-height: 1.35;
    }

    .case-left p {
      color: #94A3B8;
      font-size: 1rem;
      line-height: 1.8;
      margin-bottom: 25px;
    }

    .case-cards-column {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .case-card-item {
      background: var(--dark-card);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      padding: 24px;
    }

    .case-card-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 12px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      padding-bottom: 10px;
    }

    .case-card-tag {
      color: var(--accent);
      font-weight: 600;
      font-size: 0.85rem;
    }

    .case-comparison-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 12px;
    }

    .comp-col-before {
      background: rgba(239, 68, 68, 0.08);
      padding: 12px;
      border-radius: var(--radius-sm);
      font-size: 0.85rem;
      color: #fca5a5;
    }

    .comp-col-after {
      background: rgba(34, 197, 94, 0.08);
      padding: 12px;
      border-radius: var(--radius-sm);
      font-size: 0.85rem;
      color: #86efac;
    }

    /* 7. 用户故事与场景实践 */
    .stories-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 35px;
    }

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

    .story-image {
      height: 240px;
      width: 100%;
      object-fit: cover;
    }

    .story-body {
      padding: 28px;
    }

    .story-badge {
      color: var(--accent);
      font-size: 0.8rem;
      font-weight: 700;
      margin-bottom: 8px;
      display: inline-block;
    }

    .story-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
    }

    .story-desc {
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 8. 服务里程碑流程 */
    .workflow-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .workflow-timeline::before {
      content: '';
      position: absolute;
      top: 40px;
      left: 10%;
      right: 10%;
      height: 2px;
      background: var(--border-color);
      z-index: 1;
    }

    .workflow-step {
      position: relative;
      z-index: 2;
      text-align: center;
      background: var(--light-surface);
      padding: 24px 16px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }

    .workflow-step-num {
      width: 50px;
      height: 50px;
      background: var(--primary);
      color: var(--white);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.15rem;
      font-weight: 800;
      margin: 0 auto 18px auto;
      border: 4px solid var(--white);
      box-shadow: var(--shadow-sm);
    }

    .workflow-step:hover .workflow-step-num {
      background: var(--accent);
    }

    .workflow-step-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
    }

    .workflow-step-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 9. 客户评价与原声 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .testimonial-card {
      background: var(--white);
      padding: 32px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .testimonial-stars {
      color: #F59E0B;
      font-size: 1.1rem;
      margin-bottom: 14px;
    }

    .testimonial-quote {
      font-size: 0.95rem;
      color: var(--text-main);
      line-height: 1.75;
      font-style: italic;
      margin-bottom: 22px;
    }

    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid var(--border-color);
      padding-top: 18px;
    }

    .author-avatar {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #e2e8f0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
    }

    .author-name {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--primary);
    }

    .author-role {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 10. 行业动态与合规资讯 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

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

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

    .news-card-img {
      height: 180px;
      width: 100%;
      object-fit: cover;
    }

    .news-card-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .news-meta {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-bottom: 10px;
    }

    .news-card-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .news-card-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .news-more-link {
      font-size: 0.875rem;
      color: var(--accent);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 11. 平台保障体系 */
    .compliance-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .compliance-card {
      background: var(--white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 20px;
      text-align: center;
      box-shadow: var(--shadow-sm);
    }

    .compliance-badge-icon {
      width: 56px;
      height: 56px;
      margin: 0 auto 16px auto;
      background: rgba(197, 168, 128, 0.12);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      color: var(--accent);
    }

    .compliance-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
    }

    .compliance-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 12. 常见问题手风琴 */
    .faq-container {
      max-width: 820px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: var(--white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      padding: 20px 24px;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--primary);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      transition: var(--transition);
    }

    .faq-question:hover {
      background-color: #f8fafc;
    }

    .faq-icon {
      font-size: 1.25rem;
      color: var(--accent);
      transition: transform 0.3s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background-color: #ffffff;
      padding: 0 24px;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.75;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 0 24px 22px 24px;
      border-top: 1px solid #f1f5f9;
    }

    /* 13. 底部极速转化表单 */
    .conversion-panel {
      background: linear-gradient(135deg, var(--primary) 0%, #0d1b30 100%);
      border-radius: var(--radius-lg);
      padding: 60px 50px;
      box-shadow: var(--shadow-lg);
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
      color: var(--white);
    }

    .form-title {
      font-size: 2rem;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 16px;
    }

    .form-desc {
      font-size: 0.95rem;
      color: #cbd5e1;
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .form-contact-chips {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .chip-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.9rem;
      color: #e2e8f0;
    }

    .cta-form-box {
      background: var(--white);
      padding: 35px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-md);
      color: var(--text-main);
    }

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

    .form-label {
      display: block;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-input, .form-select {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.925rem;
      background: #f8fafc;
      color: var(--text-main);
      outline: none;
      transition: var(--transition);
    }

    .form-input:focus, .form-select:focus {
      border-color: var(--accent);
      background: var(--white);
      box-shadow: 0 0 0 3px rgba(197, 168, 128, 0.2);
    }

    .form-disclaimer {
      font-size: 0.775rem;
      color: var(--text-muted);
      margin-top: 12px;
      text-align: center;
    }

    /* 页脚系统 */
    .site-footer {
      background: #08111e;
      color: #94a3b8;
      font-size: 0.9rem;
      padding-top: 70px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 50px;
    }

    .footer-logo {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--white);
      margin-bottom: 16px;
      display: inline-block;
    }

    .footer-about-text {
      line-height: 1.75;
      margin-bottom: 18px;
    }

    .footer-title {
      font-size: 1rem;
      font-weight: 600;
      color: var(--white);
      margin-bottom: 20px;
      position: relative;
    }

    .footer-title::after {
      content: '';
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 24px;
      height: 2px;
      background: var(--accent);
    }

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

    .footer-links a:hover {
      color: var(--accent);
      padding-left: 4px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding: 24px 0;
      font-size: 0.8125rem;
      text-align: center;
      color: #64748b;
    }

    .footer-bottom a {
      color: #94a3b8;
    }

    .footer-bottom a:hover {
      color: var(--white);
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .matrix-grid, .strengths-grid, .testimonial-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-grid, .compliance-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-timeline::before {
        display: none;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 20px 24px;
        box-shadow: var(--shadow-md);
        gap: 16px;
      }
      .nav-links.show {
        display: flex;
      }
      .nav-btn-header {
        display: none;
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .about-grid, .case-container, .stories-grid, .conversion-panel {
        grid-template-columns: 1fr;
        gap: 35px;
      }
      .matrix-grid, .strengths-grid, .testimonial-grid, .news-grid, .compliance-grid, .workflow-timeline {
        grid-template-columns: 1fr;
      }
      .metrics-grid {
        grid-template-columns: 1fr;
      }
      .metric-card {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        padding-bottom: 16px;
      }
      .metric-card:last-child {
        border-bottom: none;
      }
      .conversion-panel {
        padding: 35px 20px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }