/* 全局基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft Yahei", sans-serif;
}

/* 头部容器核心布局 */
header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    height: 60px;
    background-color: #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: relative;
}

/* 移动端菜单按钮（仅移动端显示） */
.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    font-size: 22px;
    cursor: pointer;
    color: #333;
}

/* Logo样式（仅保留小尺寸logo） */
.logo img {
    height: 40px;
    width: auto;
    display: block;
}

/* 桌面端导航菜单 */
.desktop-nav {
    display: flex;
    list-style: none;
    gap: 28px;
}

.desktop-nav li a {
    text-decoration: none;
    color: #333;
    font-size: 14px;
    display: flex;
    align-items: center;
    transition: color 0.2s;
}

.desktop-nav li a:hover {
    color: #0066cc;
}

/* HOT标签样式 */
.hot-tag {
    background-color: #ff4d4f;
    color: #fff;
    font-size: 10px;
    padding: 2px 5px;
    border-radius: 2px;
    margin-left: 4px;
    line-height: 1;
    font-weight: bold;
}

/* 控制台按钮 */
.console-btn {
    background-color: #0066cc;
    color: #fff;
    border: none;
    padding: 6px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s;
}

.console-btn:hover {
    background-color: #0052a3;
}

/* 移动端菜单容器（默认隐藏） */
.mobile-menu {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    width: 100%;
    background-color: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    z-index: 999;
    padding: 10px 0;
}

/* 移动端菜单列表 */
.mobile-menu ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-menu li {
    border-bottom: 1px solid #f5f5f5;
}

.mobile-menu li a {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    text-decoration: none;
    color: #333;
    font-size: 14px;
}

.mobile-menu li a:hover {
    background-color: #f8f8f8;
}

/* 产品分类折叠菜单样式 */
.product_Level {
    padding: 12px 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.product_Level a {
    color: #333;
    text-decoration: none;
}

.fold-icon {
    transition: transform 0.2s;
    margin-left: 8px;
}

.sub-menu {
    padding-left: 20px;
}

.products-secondary {
    padding: 8px 0;
}

.product_secnod a {
    padding: 8px 20px;
    display: block;
    color: #666;
}

.product_secnod.active a {
    color: #0066cc;
    font-weight: bold;
}

/* 响应式适配（768px以下为移动端） */
@media (max-width: 768px) {
    .desktop-nav {
        display: none;
    }
    .mobile-menu-btn {
        display: block;
    }
}