/* 基础导航菜单样式 */
:root {
  --primary-color: #2c3e50;
  --secondary-color: #34495e;
  --accent-color: #3498db;
  --text-color: #2c3e50;
  --hover-color: #3498db;
  --transition: all 0.3s ease;
  --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.BMzGWXVzFI {
  position: relative;
  width: 100%;
  background-color: black;
  box-shadow: var(--box-shadow);
}

.BMzGWXVzFI ul.level1 {
  display: flex;
  justify-content: flex-start;
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 1200px;
  margin: 0 auto;
}

.BMzGWXVzFI li {
}

.BMzGWXVzFI a {
  display: block;
  padding: 1rem 1.5rem;
  text-decoration: none;
  transition: var(--transition);
  font-weight: 500;
  font-size: 1rem;
}

.BMzGWXVzFI a:hover {
  color: #efefef;
  background-color: #000000;
}

.menu-toggle {
  display: none;
}


/* 三级菜单 */
.level2 ul {
  top: 0;
  min-width: 250px;
  padding: 0.5rem 0;
}

/* PC端悬停显示菜单 */
@media (min-width: 769px) {
  li.submenu:hover > ul {
    display: block !important;
    width: 100%;
    position: absolute;
    top: 60px;
    left: 0;
    background-color: white;
    box-shadow: var(--box-shadow);
    transform: translateX(10px);
    transition: var(--transition);
    border-radius: 4px;
    z-index: 101;
  }

  .level2 {
    display: none;
  }

  .LKMnNivOmW {
    display: flex;
    flex-wrap: wrap;
    width: 500px;
    padding: 1rem;
  }
  
  .LKMnNivOmW a {
    width: 33.33%;
    padding: 0.8rem 1rem;
    box-sizing: border-box;
    font-size: 0.9rem;
    color: var(--text-color);
    transition: var(--transition);
  }
  
  .LKMnNivOmW a:hover {
    color: var(--hover-color);
    background-color: rgba(52, 152, 219, 0.1);
  }
  
  /* 带箭头的子菜单 */
  .submenu > a::after {
    content: '';
    display: inline-block;
    margin-left: 5px;
    border-top: 4px solid var(--text-color);
    border-right: 4px solid transparent;
    border-left: 4px solid transparent;
    vertical-align: middle;
    transition: var(--transition);
  }
  
  .submenu:hover > a::after {
    border-top-color: #efefef;
  }
  
  .level2 .submenu > a::after {
    transform: rotate(-90deg);
  }

  .level2 a {
    color: #000000;
  }
}
@media (min-width: 769px) {
  .submenu > a {
    color: #FFFFFF;
  }
}
/* 移动端菜单样式 */
@media (max-width: 768px) {
  .BMzGWXVzFI {
    padding: 0 !important;
  }
  .BMzGWXVzFI a {
    color: #000000;
  }
  .menu-toggle {
    display: block;
    position: absolute;
    right: 1rem;
    top: -50px;
    z-index: 1001;
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 2rem;
    cursor: pointer;
    padding: 0.5rem;
    transition: var(--transition);
  }
  
  .menu-toggle:hover {
    color: #000000;
  }
  
  .BMzGWXVzFI ul.level1 {
    flex-direction: column;
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100%;
    background-color: white;
    box-shadow: var(--box-shadow);
    padding: 4rem 0 0 0;
    transition: right 0.3s ease;
    overflow-y: auto;
    z-index: 1000;
  }
  
  .BMzGWXVzFI ul.level1.active {
    right: 0;
  }
  
  /* 重置二级和三级菜单样式 */
  .level2,
  .level2 ul {
    position: static;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    width: 100%;
    background-color: #f8f9fa;
    padding-left: 1rem;
  }
  
  .level2.active,
  .level2 ul.active {
    display: block;
  }
  
  /* 调整链接样式 */
  .BMzGWXVzFI a {
    padding: 0.8rem 1.5rem;
    border-bottom: 1px solid #eee;
    font-size: 1rem;
  }
  
  .level2 a {
    padding-left: 2.5rem;
    font-size: 0.95rem;
  }
  
  .level2 ul a {
    padding-left: 3.5rem;
    font-size: 0.9rem;
  }
  
  /* 带箭头的子菜单 */
  .submenu {
    position: relative;
  }
  
  /* LKMnNivOmW 容器样式 */
  .LKMnNivOmW {
    padding: 0;
    margin: 0;
    width: 100%;
    display: flex;
    flex-direction: column;
  }
  
  .LKMnNivOmW a {
    padding: 0.8rem 1.5rem;
    border-bottom: 1px solid #eee;
    font-size: 0.9rem;
  }
  
  /* 遮罩层 */
  .menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
    transition: var(--transition);
  }
  
  .menu-overlay.active {
    display: block;
  }
}