/* ========================================
   移动端菜单统一修复样式 - sitpcba.com
   版本: 4.0 - 全面美化版
   解决: 首页/内页汉堡菜单统一样式
   ======================================== */

/* ===== 移动端样式 (768px及以下) ===== */
@media screen and (max-width: 768px) {

  /* ----- 1. Header固定定位 ----- */
  header {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    height: 60px !important;
    z-index: 9999 !important;
    transform: translateZ(0) !important;
    -webkit-transform: translateZ(0) !important;
    transition: background 0.3s ease, box-shadow 0.3s ease !important;
  }

  /* ----- 菜单打开时 header 强制白色背景 ----- */
  body.mobile-menu-open header {
    background: #ffffff !important;
    background-color: #ffffff !important;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1) !important;
  }

  /* 菜单打开时 Logo 恢复原色 */
  body.mobile-menu-open .logo img {
    filter: none !important;
    opacity: 1 !important;
  }

  /* 菜单打开时汉堡按钮变深色 */
  body.mobile-menu-open .mobnav-btn span {
    background-color: #333333 !important;
  }

  /* ----- 2. Body顶部留出空间 ----- */
  body {
    padding-top: 0 !important;
  }

  /* ----- 3. Header内容容器 ----- */
  .headerweb {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    height: 60px !important;
    padding: 0 15px !important;
    position: relative !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: visible !important;
  }

  /* ----- 4. Logo样式 ----- */
  .logo {
    flex-shrink: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    position: static !important;
    z-index: 10 !important;
    order: 1 !important;
  }

  .logo img {
    height: 36px !important;
    width: auto !important;
    max-width: 160px !important;
    display: block !important;
    object-fit: contain !important;
    transition: filter 0.3s ease !important;
  }

  /* ----- 5. 隐藏PC端元素 ----- */
  .top-contact-info,
  .pcnavmenubtn,
  .childMenu {
    display: none !important;
  }

  /* ----- 6. 右侧区域布局 ----- */
  .header-right {
    display: flex !important;
    align-items: center !important;
    gap: 15px !important;
    margin-left: auto !important;
    position: static !important;
    float: none !important;
    padding: 0 !important;
    height: 60px !important;
    z-index: 10 !important;
    flex-shrink: 0 !important;
    order: 2 !important;
    right: auto !important;
    top: auto !important;
    width: auto !important;
  }

  /* ----- 7. 搜索按钮 ----- */
  .search-con,
  .header-right .search-con {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    flex-shrink: 0 !important;
    width: 36px !important;
    height: 36px !important;
    margin: 0 !important;
    padding: 0 !important;
    position: relative !important;
  }

  .search-inco,
  .header-right .search-inco {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 36px !important;
    height: 36px !important;
    cursor: pointer !important;
    flex-shrink: 0 !important;
    -webkit-tap-highlight-color: transparent !important;
    border-radius: 50% !important;
    transition: all 0.3s ease !important;
  }

  .search-inco:active {
    transform: scale(0.9) !important;
  }

  .search-inco svg {
    width: 20px !important;
    height: 20px !important;
  }

  /* ----- 8. 汉堡菜单按钮 - 精美动画版 ----- */
  .mobnav-btn {
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
    align-items: center !important;
    width: 36px !important;
    height: 36px !important;
    padding: 0 !important;
    margin: 0 !important;
    position: relative !important;
    flex-shrink: 0 !important;
    cursor: pointer !important;
    -webkit-tap-highlight-color: transparent !important;
    user-select: none !important;
    outline: none !important;
    border: none !important;
    background: transparent !important;
    z-index: 10001 !important;
    opacity: 1 !important;
    visibility: visible !important;
    border-radius: 8px !important;
    transition: background 0.2s ease !important;
  }

  .mobnav-btn:active {
    background: rgba(0,0,0,0.05) !important;
  }

  .mobnav-btn span {
    display: block !important;
    width: 22px !important;
    height: 2px !important;
    border-radius: 2px !important;
    transition: all 0.35s cubic-bezier(0.68, -0.55, 0.265, 1.55) !important;
    position: absolute !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
    pointer-events: none !important;
    opacity: 1 !important;
    visibility: visible !important;
  }

  .mobnav-btn span:nth-child(1) {
    top: 10px !important;
  }

  .mobnav-btn span:nth-child(2) {
    top: 17px !important;
  }

  .mobnav-btn span:nth-child(3) {
    top: 24px !important;
  }

  /* 汉堡变X的精美动画 */
  .mobnav-btn.g_close span:nth-child(1) {
    top: 17px !important;
    transform: translateX(-50%) rotate(45deg) !important;
  }

  .mobnav-btn.g_close span:nth-child(2) {
    opacity: 0 !important;
    transform: translateX(-50%) scaleX(0) !important;
  }

  .mobnav-btn.g_close span:nth-child(3) {
    top: 17px !important;
    transform: translateX(-50%) rotate(-45deg) !important;
  }

  /* ----- 9. 导航菜单容器 - 优雅的全屏菜单 ----- */
  .header-nav,
  .header-nav.commonweb {
    position: fixed !important;
    top: 60px !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    height: calc(100vh - 60px) !important;
    max-height: calc(100vh - 60px) !important;
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%) !important;
    z-index: 9998 !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15) !important;
    display: none !important;
    padding: 0 !important;
  }

  /* 菜单打开状态 */
  .header-nav.is-open,
  .header-nav.commonweb.is-open {
    display: block !important;
    z-index: 10000 !important;
    visibility: visible !important;
    opacity: 1 !important;
    transform: none !important;
    pointer-events: auto !important;
  }

  /* ----- 10. 导航菜单列表 ----- */
  .header-nav ul,
  .header-nav ul#curlist {
    list-style: none !important;
    margin: 0 !important;
    padding: 8px 0 !important;
    display: block !important;
    height: auto !important;
    max-height: none !important;
    overflow: visible !important;
    width: 100% !important;
  }

  /* 每个菜单项 */
  .header-nav ul li,
  .header-nav ul#curlist > li,
  .header-nav li {
    display: block !important;
    float: none !important;
    width: 100% !important;
    height: auto !important;
    border-bottom: none !important;
    position: relative !important;
    visibility: visible !important;
    opacity: 1 !important;
    overflow: visible !important;
    max-height: none !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  /* ----- 11. 一级菜单链接 - 优雅卡片式设计 ----- */
  .header-nav ul li h3,
  .header-nav li h3 {
    margin: 4px 12px !important;
    padding: 0 !important;
    position: relative !important;
    border-radius: 12px !important;
    overflow: hidden !important;
    background: #ffffff !important;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04) !important;
    transition: all 0.3s ease !important;
  }

  .header-nav ul li h3:active,
  .header-nav li h3:active {
    transform: scale(0.98) !important;
  }

  .header-nav ul li h3 a,
  .header-nav li h3 a,
  .header-nav.is-open ul li h3 a,
  .header-nav.is-open li h3 a,
  body .header-nav ul li h3 a,
  body .header-nav li h3 a,
  body.mobile-menu-open .header-nav ul li h3 a,
  body.mobile-menu-open .header-nav li h3 a {
    display: flex !important;
    align-items: center !important;
    padding: 16px 50px 16px 20px !important;
    font-size: 15px !important;
    font-weight: 500 !important;
    color: #1a1a2e !important;
    text-decoration: none !important;
    background: transparent !important;
    text-shadow: none !important;
    transition: all 0.2s ease !important;
    -webkit-tap-highlight-color: transparent !important;
    visibility: visible !important;
    opacity: 1 !important;
    letter-spacing: 0.3px !important;
  }

  /* 菜单项左侧装饰线 */
  .header-nav ul li h3::before,
  .header-nav li h3::before {
    content: '' !important;
    position: absolute !important;
    left: 0 !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    width: 3px !important;
    height: 0 !important;
    background: linear-gradient(180deg, #0066ff 0%, #00d4ff 100%) !important;
    border-radius: 0 3px 3px 0 !important;
    transition: height 0.3s ease !important;
  }

  /* 展开状态的装饰线 */
  .header-nav ul li.cur > h3::before,
  .header-nav li.cur > h3::before {
    height: 60% !important;
  }

  /* 当前页/展开状态高亮 */
  .header-nav ul li.cur > h3,
  .header-nav li.cur > h3 {
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.08) 0%, rgba(0, 212, 255, 0.05) 100%) !important;
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.1) !important;
  }

  .header-nav ul li.cur > h3 a,
  .header-nav li.cur > h3 a,
  .header-nav.is-open ul li.cur > h3 a,
  body.mobile-menu-open .header-nav ul li.cur > h3 a {
    color: #0066ff !important;
    font-weight: 600 !important;
  }

  /* ----- 12. 二级菜单展开按钮 - 精美箭头 ----- */
  .phsearchicon {
    position: absolute !important;
    right: 8px !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    width: 36px !important;
    height: 36px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    cursor: pointer !important;
    z-index: 10 !important;
    background: rgba(0,0,0,0.03) !important;
    border: none !important;
    padding: 0 !important;
    margin: 0 !important;
    border-radius: 10px !important;
    -webkit-tap-highlight-color: transparent !important;
    transition: all 0.3s ease !important;
  }

  .phsearchicon:active {
    background: rgba(0,0,0,0.08) !important;
    transform: translateY(-50%) scale(0.9) !important;
  }

  .header-nav li .phsearchicon {
    display: flex !important;
  }

  /* 箭头基础样式 - 使用伪元素居中 */
  .phsearchicon:after {
    content: '' !important;
    position: absolute !important;
    top: 50% !important;
    left: 50% !important;
    width: 8px !important;
    height: 8px !important;
    border-right: 2px solid #666 !important;
    border-bottom: 2px solid #666 !important;
    /* 向下箭头：先移到中心，再稍微上移让视觉居中 */
    transform: translate(-50%, -70%) rotate(45deg) !important;
    transition: all 0.3s ease !important;
    display: block !important;
  }

  /* 展开状态箭头向上 */
  .header-nav ul li.cur > h3 .phsearchicon:after,
  .header-nav li.cur > h3 .phsearchicon:after,
  .header-nav ul li.cur > .phsearchicon:after,
  .header-nav li.cur > .phsearchicon:after {
    /* 向上箭头：先移到中心，再稍微下移让视觉居中 */
    transform: translate(-50%, -30%) rotate(-135deg) !important;
    border-color: #0066ff !important;
  }

  .header-nav ul li.cur > h3 .phsearchicon,
  .header-nav li.cur > h3 .phsearchicon,
  .header-nav ul li.cur > .phsearchicon,
  .header-nav li.cur > .phsearchicon {
    background: rgba(0, 102, 255, 0.1) !important;
  }

  /* ----- 13. 二级菜单 - 优雅的子菜单 ----- */
  .sub-nav {
    display: none !important;
    position: static !important;
    width: 100% !important;
    background: transparent !important;
    box-shadow: none !important;
    border-radius: 0 !important;
    padding: 0 12px 8px 12px !important;
    margin: 0 !important;
    left: 0 !important;
    top: auto !important;
  }

  /* 展开状态 */
  .header-nav ul li.cur .sub-nav,
  .header-nav li.cur .sub-nav {
    display: block !important;
  }

  .sub-nav .sub-item {
    border-bottom: none !important;
    margin: 0 0 4px 0 !important;
    padding: 0 !important;
    position: relative !important;
  }

  .sub-nav .sub-item:last-child {
    margin-bottom: 0 !important;
  }

  .sub-nav .sub-item h4 {
    margin: 0 !important;
    padding: 0 !important;
    line-height: normal !important;
  }

  .sub-nav .sub-item h4 a {
    display: flex !important;
    align-items: center !important;
    padding: 14px 16px 14px 24px !important;
    color: #555 !important;
    font-size: 14px !important;
    font-weight: 400 !important;
    background: rgba(0,0,0,0.02) !important;
    border-radius: 10px !important;
    transition: all 0.25s ease !important;
    text-decoration: none !important;
    min-height: auto !important;
    line-height: 1.4 !important;
    -webkit-tap-highlight-color: transparent !important;
    position: relative !important;
    z-index: 1 !important;
    margin-left: 12px !important;
    border-left: 2px solid #e0e0e0 !important;
  }

  /* 二级菜单小圆点装饰 */
  .sub-nav .sub-item h4 a::before {
    content: '' !important;
    position: absolute !important;
    left: -5px !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    width: 8px !important;
    height: 8px !important;
    background: #e0e0e0 !important;
    border-radius: 50% !important;
    transition: all 0.3s ease !important;
  }

  .sub-nav .sub-item h4 a:hover,
  .sub-nav .sub-item h4 a:active {
    background: rgba(0, 102, 255, 0.08) !important;
    color: #0066ff !important;
    border-left-color: #0066ff !important;
    transform: translateX(4px) !important;
  }

  .sub-nav .sub-item h4 a:hover::before,
  .sub-nav .sub-item h4 a:active::before {
    background: #0066ff !important;
    box-shadow: 0 0 8px rgba(0, 102, 255, 0.4) !important;
  }

  /* ----- 14. 搜索框样式 - 现代化设计 ----- */
  .searchbox,
  .header-right .searchbox {
    position: fixed !important;
    top: 60px !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    background: #ffffff !important;
    padding: 16px !important;
    box-shadow: 0 10px 40px rgba(0,0,0,0.12) !important;
    z-index: 9997 !important;
    display: none !important;
    box-sizing: border-box !important;
  }

  .searchbox form {
    display: flex !important;
    gap: 10px !important;
    width: 100% !important;
    position: relative !important;
  }

  .searchbox .searchtext {
    flex: 1 !important;
    width: 100% !important;
    height: 48px !important;
    padding: 12px 70px 12px 20px !important;
    border: 2px solid #e8e8e8 !important;
    border-radius: 24px !important;
    font-size: 15px !important;
    box-sizing: border-box !important;
    outline: none !important;
    transition: all 0.3s ease !important;
    background: #f8f9fa !important;
  }

  .searchbox .searchtext:focus {
    border-color: #0066ff !important;
    background: #ffffff !important;
    box-shadow: 0 0 0 4px rgba(0, 102, 255, 0.1) !important;
  }

  .searchbox .searchbtn {
    position: absolute !important;
    right: 6px !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    height: 36px !important;
    padding: 0 20px !important;
    background: linear-gradient(135deg, #0066ff 0%, #00a8ff 100%) !important;
    color: #fff !important;
    border: none !important;
    border-radius: 18px !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    cursor: pointer !important;
    transition: all 0.3s ease !important;
  }

  .searchbox .searchbtn:active {
    transform: translateY(-50%) scale(0.95) !important;
  }

  /* ----- 15. 侧边导航隐藏 ----- */
  .headsideNav {
    display: none !important;
  }

  /* ----- 16. 菜单底部安全区域 ----- */
  .header-nav::after {
    content: '' !important;
    display: block !important;
    height: 80px !important;
    width: 100% !important;
  }
}

/* ===== 中等屏幕 (769px - 1023px) ===== */
@media screen and (min-width: 769px) and (max-width: 1023px) {

  header {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    height: 70px !important;
    z-index: 9999 !important;
    transform: translateZ(0) !important;
    -webkit-transform: translateZ(0) !important;
    transition: background 0.3s ease, box-shadow 0.3s ease !important;
  }

  /* ----- 菜单打开时 header 强制白色背景 ----- */
  body.mobile-menu-open header {
    background: #ffffff !important;
    background-color: #ffffff !important;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1) !important;
  }

  body.mobile-menu-open .logo img {
    filter: none !important;
    opacity: 1 !important;
  }

  body.mobile-menu-open .mobnav-btn span {
    background-color: #333333 !important;
  }

  body {
    padding-top: 0 !important;
  }

  .headerweb {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    height: 70px !important;
    padding: 0 24px !important;
    position: relative !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .logo {
    flex-shrink: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    position: static !important;
  }

  .logo img {
    height: 42px !important;
    width: auto !important;
    max-width: 200px !important;
    transition: filter 0.3s ease !important;
  }

  .top-contact-info {
    display: none !important;
  }

  .header-right {
    display: flex !important;
    align-items: center !important;
    gap: 18px !important;
    position: static !important;
    float: none !important;
    padding: 0 !important;
    height: 70px !important;
    margin-left: auto !important;
    right: auto !important;
    top: auto !important;
    width: auto !important;
  }

  /* 汉堡菜单按钮 */
  .mobnav-btn {
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
    align-items: center !important;
    width: 44px !important;
    height: 44px !important;
    cursor: pointer !important;
    position: relative !important;
    background: transparent !important;
    border: none !important;
    z-index: 10001 !important;
    opacity: 1 !important;
    visibility: visible !important;
    border-radius: 10px !important;
    transition: background 0.2s ease !important;
  }

  .mobnav-btn:active {
    background: rgba(0,0,0,0.05) !important;
  }

  .mobnav-btn span {
    display: block !important;
    width: 26px !important;
    height: 2.5px !important;
    border-radius: 3px !important;
    transition: all 0.35s cubic-bezier(0.68, -0.55, 0.265, 1.55) !important;
    position: absolute !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
    opacity: 1 !important;
    visibility: visible !important;
  }

  .mobnav-btn span:nth-child(1) {
    top: 13px !important;
  }

  .mobnav-btn span:nth-child(2) {
    top: 21px !important;
  }

  .mobnav-btn span:nth-child(3) {
    top: 29px !important;
  }

  .mobnav-btn.g_close span:nth-child(1) {
    top: 21px !important;
    transform: translateX(-50%) rotate(45deg) !important;
  }

  .mobnav-btn.g_close span:nth-child(2) {
    opacity: 0 !important;
    transform: translateX(-50%) scaleX(0) !important;
  }

  .mobnav-btn.g_close span:nth-child(3) {
    top: 21px !important;
    transform: translateX(-50%) rotate(-45deg) !important;
  }

  /* 导航菜单 */
  .header-nav,
  .header-nav.commonweb {
    position: fixed !important;
    top: 70px !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    height: calc(100vh - 70px) !important;
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%) !important;
    z-index: 9998 !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
    max-height: calc(100vh - 70px) !important;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15) !important;
    display: none !important;
    padding: 0 !important;
  }

  .header-nav.is-open,
  .header-nav.commonweb.is-open {
    display: block !important;
    z-index: 10000 !important;
    visibility: visible !important;
    opacity: 1 !important;
    transform: none !important;
    pointer-events: auto !important;
  }

  .header-nav ul,
  .header-nav ul#curlist {
    list-style: none !important;
    margin: 0 !important;
    padding: 12px 0 !important;
    display: block !important;
    height: auto !important;
    max-height: none !important;
    overflow: visible !important;
    width: 100% !important;
  }

  .header-nav ul li,
  .header-nav ul#curlist > li,
  .header-nav li {
    display: block !important;
    float: none !important;
    width: 100% !important;
    height: auto !important;
    border-bottom: none !important;
    position: relative !important;
    visibility: visible !important;
    opacity: 1 !important;
    overflow: visible !important;
    max-height: none !important;
  }

  .header-nav ul li h3,
  .header-nav li h3 {
    margin: 6px 16px !important;
    padding: 0 !important;
    border-radius: 14px !important;
    overflow: hidden !important;
    background: #ffffff !important;
    box-shadow: 0 2px 10px rgba(0,0,0,0.04) !important;
    position: relative !important;
    transition: all 0.3s ease !important;
  }

  .header-nav ul li h3::before,
  .header-nav li h3::before {
    content: '' !important;
    position: absolute !important;
    left: 0 !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    width: 4px !important;
    height: 0 !important;
    background: linear-gradient(180deg, #0066ff 0%, #00d4ff 100%) !important;
    border-radius: 0 4px 4px 0 !important;
    transition: height 0.3s ease !important;
  }

  .header-nav ul li.cur > h3::before,
  .header-nav li.cur > h3::before {
    height: 60% !important;
  }

  .header-nav ul li h3 a,
  .header-nav li h3 a,
  .header-nav.is-open ul li h3 a,
  .header-nav.is-open li h3 a,
  body .header-nav ul li h3 a,
  body .header-nav li h3 a,
  body.mobile-menu-open .header-nav ul li h3 a,
  body.mobile-menu-open .header-nav li h3 a {
    display: flex !important;
    align-items: center !important;
    padding: 18px 55px 18px 24px !important;
    font-size: 16px !important;
    font-weight: 500 !important;
    color: #1a1a2e !important;
    text-decoration: none !important;
    background: transparent !important;
    text-shadow: none !important;
    visibility: visible !important;
    opacity: 1 !important;
    letter-spacing: 0.3px !important;
    transition: all 0.2s ease !important;
  }

  .header-nav ul li.cur > h3,
  .header-nav li.cur > h3 {
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.08) 0%, rgba(0, 212, 255, 0.05) 100%) !important;
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.1) !important;
  }

  .header-nav ul li.cur > h3 a,
  .header-nav li.cur > h3 a,
  .header-nav.is-open ul li.cur > h3 a,
  body.mobile-menu-open .header-nav ul li.cur > h3 a {
    color: #0066ff !important;
    font-weight: 600 !important;
  }

  .phsearchicon {
    position: absolute !important;
    right: 10px !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    width: 40px !important;
    height: 40px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    cursor: pointer !important;
    background: rgba(0,0,0,0.03) !important;
    border-radius: 10px !important;
    transition: all 0.3s ease !important;
  }

  .phsearchicon:active {
    background: rgba(0,0,0,0.08) !important;
    transform: translateY(-50%) scale(0.9) !important;
  }

  /* 箭头基础样式 - 使用绝对定位居中 */
  .phsearchicon:after {
    content: '' !important;
    position: absolute !important;
    top: 50% !important;
    left: 50% !important;
    width: 9px !important;
    height: 9px !important;
    border-right: 2px solid #666 !important;
    border-bottom: 2px solid #666 !important;
    /* 向下箭头：先移到中心，再稍微上移让视觉居中 */
    transform: translate(-50%, -70%) rotate(45deg) !important;
    transition: all 0.3s ease !important;
  }

  /* 展开状态箭头向上 */
  .header-nav ul li.cur > h3 .phsearchicon:after,
  .header-nav li.cur > h3 .phsearchicon:after,
  .header-nav ul li.cur > .phsearchicon:after,
  .header-nav li.cur > .phsearchicon:after {
    /* 向上箭头：先移到中心，再稍微下移让视觉居中 */
    transform: translate(-50%, -30%) rotate(-135deg) !important;
    border-color: #0066ff !important;
  }

  .header-nav ul li.cur > h3 .phsearchicon,
  .header-nav li.cur > h3 .phsearchicon,
  .header-nav ul li.cur > .phsearchicon,
  .header-nav li.cur > .phsearchicon {
    background: rgba(0, 102, 255, 0.1) !important;
  }

  .sub-nav {
    display: none !important;
    background: transparent !important;
    position: static !important;
    width: 100% !important;
    padding: 0 16px 8px 16px !important;
  }

  .header-nav ul li.cur .sub-nav {
    display: block !important;
  }

  .sub-nav .sub-item {
    margin: 0 0 6px 0 !important;
  }

  .sub-nav .sub-item h4 a {
    display: flex !important;
    align-items: center !important;
    padding: 16px 20px 16px 28px !important;
    font-size: 15px !important;
    color: #555 !important;
    background: rgba(0,0,0,0.02) !important;
    border-radius: 12px !important;
    transition: all 0.25s ease !important;
    margin-left: 16px !important;
    border-left: 2px solid #e0e0e0 !important;
    position: relative !important;
  }

  .sub-nav .sub-item h4 a::before {
    content: '' !important;
    position: absolute !important;
    left: -5px !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    width: 8px !important;
    height: 8px !important;
    background: #e0e0e0 !important;
    border-radius: 50% !important;
    transition: all 0.3s ease !important;
  }

  .sub-nav .sub-item h4 a:hover,
  .sub-nav .sub-item h4 a:active {
    background: rgba(0, 102, 255, 0.08) !important;
    color: #0066ff !important;
    border-left-color: #0066ff !important;
    transform: translateX(4px) !important;
  }

  .sub-nav .sub-item h4 a:hover::before,
  .sub-nav .sub-item h4 a:active::before {
    background: #0066ff !important;
    box-shadow: 0 0 8px rgba(0, 102, 255, 0.4) !important;
  }

  .searchbox {
    position: fixed !important;
    top: 70px !important;
    left: 0 !important;
    right: 0 !important;
    background: #fff !important;
    padding: 20px !important;
    box-shadow: 0 10px 40px rgba(0,0,0,0.12) !important;
    z-index: 9997 !important;
    display: none !important;
  }

  .searchbox.is-open {
    display: block !important;
    z-index: 9999 !important;
  }

  .searchbox .searchtext {
    height: 52px !important;
    padding: 14px 80px 14px 24px !important;
    border: 2px solid #e8e8e8 !important;
    border-radius: 26px !important;
    font-size: 16px !important;
    background: #f8f9fa !important;
    transition: all 0.3s ease !important;
  }

  .searchbox .searchtext:focus {
    border-color: #0066ff !important;
    background: #ffffff !important;
    box-shadow: 0 0 0 4px rgba(0, 102, 255, 0.1) !important;
  }

  .searchbox .searchbtn {
    height: 40px !important;
    padding: 0 24px !important;
    background: linear-gradient(135deg, #0066ff 0%, #00a8ff 100%) !important;
    border-radius: 20px !important;
    font-size: 15px !important;
    font-weight: 500 !important;
  }

  .pcnavmenubtn,
  .childMenu,
  .headsideNav {
    display: none !important;
  }

  /* 菜单底部安全区域 */
  .header-nav::after {
    content: '' !important;
    display: block !important;
    height: 100px !important;
    width: 100% !important;
  }
}

/* ===== PC端 (1024px及以上) ===== */
@media screen and (min-width: 1024px) {
  /* 隐藏汉堡菜单按钮 */
  .mobnav-btn {
    display: none !important;
  }

  /* 确保导航正常显示 */
  .header-nav {
    display: block !important;
    position: static !important;
    background: transparent !important;
    box-shadow: none !important;
    overflow: visible !important;
    max-height: none !important;
    height: auto !important;
    width: auto !important;
  }

  /* 恢复PC端导航菜单列表样式 */
  .header-nav ul {
    list-style: none !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .header-nav ul li {
    display: inline-block !important;
    float: left !important;
    width: auto !important;
    border-bottom: none !important;
    position: relative !important;
    height: auto !important;
    max-height: none !important;
    overflow: visible !important;
  }

  .header-nav ul li h3 {
    margin: 0 !important;
    padding: 0 !important;
    font-size: 14px !important;
    background: transparent !important;
    box-shadow: none !important;
    border-radius: 0 !important;
  }

  .header-nav ul li h3::before {
    display: none !important;
  }

  .header-nav ul li h3 a {
    display: block !important;
    padding: 38px 0 !important;
    font-size: 14px !important;
    line-height: 1 !important;
  }

  /* 二级菜单样式 */
  .sub-nav {
    position: absolute !important;
    top: 100% !important;
    left: 0 !important;
    min-width: 180px !important;
    background: rgba(255, 255, 255, 0.98) !important;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1) !important;
    border-radius: 0 0 12px 12px !important;
    z-index: 10001 !important;
    display: none !important;
    padding: 8px 0 !important;
    backdrop-filter: blur(10px) !important;
    -webkit-backdrop-filter: blur(10px) !important;
  }

  .header-nav ul li:hover .sub-nav {
    display: block !important;
  }

  .sub-nav .sub-item {
    border-bottom: none !important;
    margin: 0 !important;
  }

  .sub-nav .sub-item:last-child {
    border-bottom: none !important;
  }

  .sub-nav .sub-item h4 a {
    display: block !important;
    padding: 12px 24px !important;
    font-size: 14px !important;
    color: #333 !important;
    text-decoration: none !important;
    transition: all 0.25s ease !important;
    border-left: none !important;
    margin-left: 0 !important;
    background: transparent !important;
    border-radius: 0 !important;
  }

  .sub-nav .sub-item h4 a::before {
    display: none !important;
  }

  .sub-nav .sub-item h4 a:hover {
    background: linear-gradient(90deg, rgba(0, 102, 255, 0.1) 0%, transparent 100%) !important;
    color: #0066ff !important;
    padding-left: 28px !important;
  }

  /* 隐藏PC端的展开按钮 */
  .phsearchicon {
    display: none !important;
  }
}