.lukai-navbar {
    background: #000;
    height: 5vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    position: relative;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  }
  
  /* Logo区域 */
  .lukai-navbar-brand {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  
  .lukai-logo-icon {
    width: 36px;
    height: 36px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgb(18, 139, 209);
    font-weight: bold;
    font-size: 28px;
  }
  
  .lukai-logo-text {
    color: white;
    font-size: 18px;
    font-weight: 600;
  }
  
  /* 主导航菜单 */
  .lukai-navbar-menu {
    display: flex;
    align-items: center;
    gap: 40px;
    margin: 0 auto;
  }
  
  .lukai-menu-item {
    color: white;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    padding: 8px 0;
    position: relative;
    cursor: pointer;
    transition: color 0.3s ease;
  }
  
  .lukai-menu-item:hover {
    color: #00ff88;
  }
  
  /* 下拉菜单 - 全屏布局 */
  .lukai-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.98);
    padding: 40px 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    display: flex;
    justify-content: center;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
  }
  
  /* 下拉菜单内容容器 */
  .lukai-dropdown-content {
    max-width: 1200px;
    width: 100%;
    padding: 0 40px;
  }
  
  .lukai-dropdown-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  
  /* 菜单网格布局 */
  .lukai-menu-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    width: 100%;
  }
  
  .lukai-solution-grid {
    display: flex;
    gap: 20px;
    width: calc(100% + 40px); /* 强制宽度超出容器 */
    margin-left: -20px;
    padding: 0 20px 10px;
    overflow-x: auto;
    white-space: nowrap;
  }
  
  .lukai-solution-column {
    flex: 1 0 22%; /* 22%宽度 + 间隙 */
    min-width: 220px;
    overflow: hidden;
  }
  
  .lukai-menu-column {
    display: flex;
    flex-direction: column;
    gap: 20px;
  }
  
  .lukai-menu-item-with-desc {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    text-decoration: none;
    color: white;
    padding: 8px;
    border-radius: 6px;
    transition: all 0.3s ease;
  }
  
  .lukai-menu-item-with-desc:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(4px);
  }
  
  .lukai-menu-icon {
    font-size: 20px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 255, 136, 0.1);
    border-radius: 6px;
    flex-shrink: 0;
  }
  
  .lukai-menu-content {
    flex: 1;
  }
  
  .lukai-menu-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
    color: white;
  }
  
  .lukai-menu-desc {
    font-size: 12px;
    color: #999;
    line-height: 1.4;
  }
  
  .lukai-menu-bottom {
    grid-column: 1 / -1;
    margin-top: 20px;
  }
  
  .lukai-bottom-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
    margin: 16px 0;
  }
  
  .lukai-bottom-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
  }
  
  .lukai-bottom-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: white;
    font-size: 12px;
    padding: 8px 12px;
    border-radius: 4px;
    transition: all 0.3s ease;
  }
  
  .lukai-bottom-btn:hover {
    background: rgba(255, 255, 255, 0.1);
  }
  
  .lukai-btn-icon {
    font-size: 16px;
  }
  
  /* 解决方案菜单样式 */
  .lukai-solution-menu {
    display: flex !important;
    justify-content: center !important;
    width: 100vw !important;
    margin-left: calc(-50vw + 50%) !important;
  }
  
  .lukai-solution-column {
    display: flex;
    flex-direction: column;
  }
  
  /* 调整分类标题样式 */
  .lukai-category-title {
    color: #00ff88;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding-bottom: 8px;
  }
  
  /* 调整菜单项间距 */
  .lukai-solution-item {
    color: white;
    text-decoration: none;
    font-size: 13px;
    padding: 8px 0;
    transition: color 0.3s ease;
    display: block;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
  }
  
  .lukai-solution-item:last-child {
    border-bottom: none;
  }
  
  .lukai-solution-category {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  
  .lukai-category-title {
    color: #00ff88;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
  }
  
  .lukai-solution-item {
    color: white;
    text-decoration: none;
    font-size: 13px;
    padding: 4px 0;
    transition: color 0.3s ease;
    display: block;
  }
  
  .lukai-solution-item:hover {
    color: #00ff88;
  }
  
  .lukai-more-solution {
    color: #666;
    font-size: 12px;
    margin-top: 8px;
    display: block;
  }
  
  .lukai-more-solution:hover {
    color: #00ff88;
  }
  
  /* 右侧功能区 */
  .lukai-navbar-actions {
    display: flex;
    align-items: center;
    gap: 20px;
  }
  
  .lukai-quick-links {
    display: flex;
    gap: 16px;
  }
  
  .lukai-quick-link {
    color: white;
    text-decoration: none;
    font-size: 12px;
    opacity: 0.8;
    transition: opacity 0.3s ease;
  }
  
  .lukai-quick-link:hover {
    opacity: 1;
  }
  
  .lukai-login-btn {
    background: #00ff88;
    color: #000;
    border: none;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
  }
  
  .lukai-login-btn:hover {
    background: #00e078;
    transform: translateY(-1px);
  }
  
  /* 主要内容区域 */
  .lukai-main-content {
    max-width: 1200px;
    margin: 60px auto;
    padding: 0 40px;
    text-align: center;
  }
  
  .lukai-demo-title {
    font-size: 32px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 16px;
  }
  
  .lukai-demo-description {
    color: #666;
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 40px;
  }
  
  .lukai-feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 40px;
  }
  
  .lukai-feature-card {
    background: white;
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    text-align: left;
  }
  
  .lukai-feature-icon {
    width: 40px;
    height: 40px;
    background: #00ff88;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    color: white;
    font-weight: bold;
  }
  
  .lukai-feature-title {
    font-size: 16px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 8px;
  }
  
  .lukai-feature-desc {
    color: #666;
    font-size: 14px;
    line-height: 1.5;
  }
  
/* 图标颜色样式 */
.lukai-icon-blue {
    color: #0066ff !important;
}

.lukai-icon-orange {
    color: #ff6b00 !important;
}

.lukai-icon-purple {
    color: #8b5cf6 !important;
}

.lukai-icon-green {
    color: #10b981 !important;
}

.lukai-icon-red {
    color: #ef4444 !important;
}

.lukai-icon-teal {
    color: #14b8a6 !important;
}

/* 底部样式 */
footer {
  background: linear-gradient(135deg, #1a1a1a 0%, #000 100%);
  color: white;
  padding: 60px 0 30px;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
}

footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(46, 204, 113, 0.3) 50%, 
    transparent 100%);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 2;
}

.footer-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 30px;
  margin-bottom: 40px;
}

.footer-links a {
  color: #adb5bd;
  text-decoration: none;
  transition: all 0.3s ease;
  font-size: 14px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 6px;
  position: relative;
}

.footer-links a::before {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #2ecc71, #3498db);
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

.footer-links a:hover {
  color: white;
  background: rgba(255, 255, 255, 0.05);
}

.footer-links a:hover::before {
  width: 80%;
}

.copyright {
  color: #888;
  font-size: 16px;
  margin: 0;
  padding: 20px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  line-height: 1.6;
  text-align: center;
  padding-bottom: 20px;
}

.copyright a {
  color: #2ecc71;
  text-decoration: none;
  transition: color 0.3s ease;
}

.copyright a:hover {
  color: #3498db;
  text-decoration: underline;
}

/* 响应式设计 */
@media (max-width: 768px) {
  footer {
    padding: 40px 0 20px;
  }
  
  .footer-links {
    gap: 15px;
    margin-bottom: 30px;
  }
  
  .footer-links a {
    font-size: 12px;
    padding: 6px 12px;
  }
  
  .copyright {
    font-size: 11px;
    padding-top: 15px;
  }
}

@media (max-width: 480px) {
  .footer-links {
    flex-direction: column;
    gap: 10px;
  }
  
  .footer-links a {
    width: 100%;
    text-align: center;
  }
}