/* 桌面端统一风格（与首页视觉语言保持一致） */
@media (min-width: 769px) {
  body {
    background: linear-gradient(180deg, #f5f8fc 0%, #eef3fb 100%) !important;
    color: #1f2a3d;
  }

  nav {
    background-color: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px) !important;
    position: fixed !important;
    width: 100% !important;
    top: 0 !important;
    left: 0 !important;
    z-index: 1000 !important;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1) !important;
    border-bottom: 0 !important;
  }

  nav .nav-container {
    max-width: 1400px !important;
    margin: 0 auto !important;
    padding: 0.5rem 2rem !important;
    height: 100px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
  }

  nav .mobile-menu-btn,
  .mobile-menu-btn,
  .mobile-menu-overlay,
  .mobile-nav {
    display: none !important;
  }

  /* 强制隐藏移动端导航容器，防止被页面内联样式覆盖后在桌面端出现在底部 */
  body > .mobile-nav,
  body > .mobile-menu-overlay,
  .mobile-nav,
  .mobile-menu-overlay,
  .mobile-nav-content,
  .mobile-nav-group,
  .mobile-nav-submenu {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    pointer-events: none !important;
    height: 0 !important;
    overflow: hidden !important;
  }

  nav .nav-links {
    display: flex !important;
    flex-wrap: nowrap !important;
    align-items: center !important;
    gap: 2rem !important;
  }

  nav .nav-links > a,
  nav .nav-links > .dropdown {
    display: inline-flex !important;
    align-items: center !important;
  }

  nav .logo img {
    height: 100% !important;
    width: auto !important;
    object-fit: contain !important;
  }

  nav .logo {
    height: 80px !important;
    display: flex !important;
    align-items: center !important;
  }

  nav .nav-links > a,
  nav .nav-links > .dropdown > a {
    position: relative !important;
    font-weight: 500 !important;
    display: flex !important;
    align-items: center !important;
    gap: 0.5rem !important;
    color: #333 !important;
    text-decoration: none !important;
    padding: 0.5rem !important;
    height: auto !important;
    border-radius: 0 !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
  }

  nav .nav-links > a:hover,
  nav .nav-links > .dropdown > a:hover {
    background: transparent !important;
    color: #2d8cf0 !important;
  }

  nav .nav-links > a i,
  nav .nav-links > .dropdown > a i {
    font-size: 1.2rem !important;
    transition: transform 0.3s ease !important;
  }

  nav .nav-links > a:hover i,
  nav .nav-links > .dropdown > a:hover i {
    transform: translateY(-2px) !important;
  }

  nav .nav-links > a.is-active,
  nav .nav-links > .dropdown > a.is-active {
    background: rgba(60, 132, 225, 0.14) !important;
    color: #123e71 !important;
    border-radius: 10px !important;
    box-shadow: inset 0 0 0 1px rgba(76, 142, 226, 0.25) !important;
  }

  nav .nav-links .dropdown-menu {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    pointer-events: none !important;
    position: absolute !important;
    top: 100% !important;
    left: 50% !important;
    transform: translateX(-50%) translateY(10px) !important;
    min-width: 220px !important;
    z-index: 1001 !important;
    border-radius: 12px !important;
    border: 1px solid rgba(45,140,240,0.15) !important;
    background: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(10px) !important;
    box-shadow: 0 4px 20px rgba(45,140,240,0.15) !important;
    padding: 10px !important;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1) !important;
  }

  nav .nav-links .dropdown {
    position: relative;
  }

  nav .nav-links .dropdown > a {
    padding-right: 1.5rem !important;
  }

  nav .nav-links .dropdown > a::after {
    content: '' !important;
    position: absolute !important;
    right: 0 !important;
    top: 50% !important;
    width: 8px !important;
    height: 8px !important;
    border-right: 2px solid currentColor !important;
    border-bottom: 2px solid currentColor !important;
    transform: translateY(-70%) rotate(45deg) !important;
    transition: transform 0.3s ease !important;
  }

  nav .nav-links .dropdown:hover > a::after {
    transform: translateY(-30%) rotate(-135deg) !important;
  }

  nav .nav-links .dropdown:hover > .dropdown-menu,
  nav .nav-links .dropdown.active > .dropdown-menu {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    pointer-events: auto !important;
    transform: translateX(-50%) translateY(0) !important;
  }

  nav .dropdown-menu a {
    border-radius: 8px;
    min-height: 34px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: #333 !important;
    padding: 0.75rem 1rem !important;
    transition: all 0.3s ease !important;
    width: 100% !important;
    white-space: nowrap !important;
  }

  nav .dropdown-menu a:hover {
    background: rgba(70, 138, 225, 0.12) !important;
    color: #2d8cf0 !important;
    transform: translateX(5px) !important;
  }

  .container,
  .content-container,
  .section-container,
  .main-container {
    max-width: 1240px;
    margin-left: auto !important;
    margin-right: auto !important;
    padding-left: 20px !important;
    padding-right: 20px !important;
  }

  .footer-nav {
    background: linear-gradient(180deg, #132946 0%, #0f2038 100%) !important;
    border-top: 1px solid rgba(136, 181, 240, 0.12);
  }

  .footer-nav-container {
    max-width: 1240px;
    margin: 0 auto !important;
    padding: 38px 20px !important;
    gap: 24px !important;
  }

  .footer-nav-title {
    color: #f3f8ff !important;
    font-weight: 700 !important;
    margin-bottom: 12px !important;
  }

  .footer-nav-links a {
    color: #b9c9df !important;
  }

  .footer-nav-links a:hover {
    color: #e8f2ff !important;
  }

  .footer,
  footer.footer {
    background: #0d1c32 !important;
    color: #d3e0f3 !important;
    border-top: 1px solid rgba(135, 177, 236, 0.12);
  }

  .footer .footer-container,
  footer.footer .footer-container {
    max-width: 1240px;
    margin: 0 auto;
    padding-left: 20px;
    padding-right: 20px;
  }
}

.mobile-nav .mobile-nav-item.is-active {
  background: rgba(56, 130, 223, 0.14) !important;
  color: #123f71 !important;
}