/* ========================================
   移动端Footer布局优化 - 消除右侧空白
   ======================================== */

@media (max-width: 768px) {
  
  /* ===== 底部导航栏完全填满屏幕 ===== */
  .mobile-bottom-nav {
    position: fixed !important;
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100vw !important;
    margin: 0 !important;
    padding: 0.75rem 0 !important;
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
    border-top: 1px solid rgba(0, 0, 0, 0.08) !important;
    box-shadow: 0 -2px 20px rgba(0, 0, 0, 0.1) !important;
    z-index: 1000 !important;
    /* 确保完全贴合屏幕边缘 */
    border-radius: 0 !important;
    border-left: none !important;
    border-right: none !important;
    border-bottom: none !important;
  }
  
  .mobile-bottom-nav .nav-item {
    flex: 1 !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 0.5rem 0.25rem !important;
    margin: 0 !important;
    color: #666 !important;
    text-decoration: none !important;
    transition: all 0.3s ease !important;
    min-height: 60px !important;
    border-radius: 0 !important;
  }
  
  .mobile-bottom-nav .nav-item.active {
    color: #2563eb !important;
    background: rgba(37, 99, 235, 0.1) !important;
  }
  
  .mobile-bottom-nav .nav-item svg {
    width: 24px !important;
    height: 24px !important;
    margin-bottom: 0.25rem !important;
  }
  
  .mobile-bottom-nav .nav-item span {
    font-size: 0.75rem !important;
    font-weight: 500 !important;
    text-align: center !important;
  }
  
  /* ===== Footer整体优化 ===== */
  footer {
    padding: 2rem 0 8rem !important; /* 底部留出导航栏空间 */
    margin: 0 !important;
    width: 100vw !important;
    max-width: 100vw !important;
  }
  
  .footer-content {
    padding: 0 1rem !important; /* 只在内容区域添加padding */
    max-width: 100% !important;
    margin: 0 !important;
  }
  
  .footer-grid {
    display: flex !important;
    flex-direction: column !important;
    gap: 2rem !important;
    width: 100% !important;
  }
  
  /* ===== 快速链接部分优化 ===== */
  .footer-col {
    width: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
  }
  
  .footer-col h4 {
    font-size: 1.2rem !important;
    margin-bottom: 1rem !important;
    color: #1a1a1a !important;
    font-weight: 600 !important;
    padding: 0 !important;
  }
  
  /* ===== 链接列表优化 - 充分利用宽度 ===== */
  .footer-links {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important; /* 两列布局 */
    gap: 0.75rem 1rem !important;
    width: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
  }
  
  .footer-links li {
    width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
  }
  
  .footer-links a {
    display: block !important;
    padding: 0.75rem 0 !important;
    font-size: 0.95rem !important;
    color: #4a5568 !important;
    text-decoration: none !important;
    transition: all 0.3s ease !important;
    border-radius: 8px !important;
    width: 100% !important;
  }
  
  .footer-links a:hover {
    color: #2563eb !important;
    background: rgba(37, 99, 235, 0.05) !important;
    transform: translateX(3px) !important;
  }
  
  /* ===== 联系方式优化 ===== */
  .footer-contact {
    display: flex !important;
    flex-direction: column !important;
    gap: 1rem !important;
    width: 100% !important;
  }
  
  .footer-contact li {
    display: flex !important;
    align-items: center !important;
    gap: 0.75rem !important;
    padding: 0.5rem 0 !important;
    font-size: 0.95rem !important;
    color: #4a5568 !important;
    width: 100% !important;
  }
  
  .footer-contact svg {
    width: 18px !important;
    height: 18px !important;
    flex-shrink: 0 !important;
    color: #3b82f6 !important;
  }
  
  /* ===== 服务项目优化 ===== */
  .footer-col:nth-child(3) .footer-links {
    grid-template-columns: 1fr !important; /* 服务项目单列 */
  }
  
  /* ===== 底部版权信息优化 ===== */
  .footer-bottom {
    margin-top: 2rem !important;
    padding-top: 1.5rem !important;
    border-top: 1px solid rgba(0, 0, 0, 0.08) !important;
    text-align: center !important;
    width: 100% !important;
  }
  
  .footer-bottom p {
    font-size: 0.85rem !important;
    color: #666 !important;
    margin: 0 !important;
  }
  
  /* ===== 品牌区域优化 ===== */
  .footer-brand {
    width: 100% !important;
    margin-bottom: 1rem !important;
  }
  
  .footer-logo {
    justify-content: flex-start !important;
    margin-bottom: 1rem !important;
  }
  
  .footer-tagline,
  .footer-desc {
    text-align: left !important;
    width: 100% !important;
  }
  
  /* ===== 确保没有横向滚动和完全填满屏幕 ===== */
  html, body {
    overflow-x: hidden !important;
    width: 100vw !important;
    max-width: 100vw !important;
  }
  
  footer,
  .footer-content,
  .footer-grid,
  .footer-col {
    overflow-x: hidden !important;
    box-sizing: border-box !important;
  }
  
  /* ===== 确保底部导航栏在所有设备上完全填满 ===== */
  .mobile-bottom-nav {
    /* 使用viewport单位确保完全填满 */
    width: 100vw !important;
    max-width: 100vw !important;
    min-width: 100vw !important;
    /* 确保贴合屏幕边缘 */
    margin-left: 0 !important;
    margin-right: 0 !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
    /* 防止任何圆角或边框 */
    border-radius: 0 !important;
    border-left: none !important;
    border-right: none !important;
  }
  
  /* ===== 修复"联系我们获取帮助"文字颜色 ===== */
  a[href="#contact"] {
    color: #1e40af !important; /* 深蓝色，确保在白色背景上清晰可见 */
    font-weight: 600 !important;
    text-decoration: none !important;
  }
  
  a[href="#contact"]:hover {
    color: #1d4ed8 !important; /* 悬停时更深的蓝色 */
  }
  
  /* ===== 修复帮助中心区域的文字对比度 ===== */
  .help-section,
  .faq-section {
    background: rgba(255, 255, 255, 0.95) !important;
  }
  
  .help-section p,
  .faq-section p {
    color: #374151 !important; /* 确保文字有足够对比度 */
  }
  
  .help-section a,
  .faq-section a {
    color: #1e40af !important;
    font-weight: 600 !important;
  }
  
  /* ===== 响应式优化 - 小屏幕 ===== */
  @media (max-width: 480px) {
    footer {
      padding: 1.5rem 0.75rem 8rem !important;
    }
    
    .footer-links {
      grid-template-columns: 1fr !important; /* 小屏幕单列 */
      gap: 0.5rem !important;
    }
    
    .footer-col h4 {
      font-size: 1.1rem !important;
    }
    
    .footer-links a,
    .footer-contact li {
      font-size: 0.9rem !important;
    }
  }
}

/* ===== 确保在所有移动设备上生效 ===== */
@media (max-width: 768px) and (orientation: portrait),
       (max-width: 1024px) and (orientation: landscape) and (max-height: 768px) {
  
  footer {
    width: 100vw !important;
    max-width: 100vw !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }
}