/* 导航栏样式 */
.navbar {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: all 0.3s ease;
    background: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* 非首页导航栏样式 */
body:not(.home-page) .navbar {
    background: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

body:not(.home-page) .logo a {
    color: #333;
}

body:not(.home-page) .nav-menu li a {
    color: #333;
}

.navbar.scrolled,
.navbar:hover {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.nav-container {
    width: 1300px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
    padding: 0;
}

/* 导航栏文字颜色 */
.logo a {
    font-size: 24px;
    font-weight: bold;
    color: #333;
    text-decoration: none;
    transition: color 0.3s ease;
}

/* 导航菜单 */
.nav-menu {
    display: flex;
    align-items: center;
    margin: 0;
    padding: 0;
    list-style: none;
    margin-left: 20px;
}

.nav-menu > li {
    position: relative;
    margin: 0;
}

/* 导航菜单链接样式 */
.nav-menu > li > a,
.nav-menu > li > .nav-link {
    display: flex;
    align-items: center;
    padding: 0 20px;
    height: 40px;
    color: #333;
    text-decoration: none;
    transition: color 0.3s;
    cursor: pointer;
}

/* 导航菜单悬停状态 */
.nav-menu li a:hover,
.nav-menu li .nav-link:hover {
    color: #007bff !important;
}

/* 用户菜单悬停效果 */
.user-menu a:hover {
    color: #007bff !important;
}

/* 滚动时或导航栏悬停时的文字颜色 */
.navbar.scrolled .logo a,
.navbar.scrolled .nav-menu li a,
.navbar.scrolled .user-menu a,
.navbar:hover .logo a,
.navbar:hover .nav-menu li a,
.navbar:hover .user-menu a {
    color: #333;
}

/* 导航菜单选中状态 */
.nav-menu li a.active {
    color: #007bff !important;
}

/* 导航菜单悬停状态 */
.nav-menu li a:hover {
    color: #007bff !important;
}

/* 下拉菜单容器 */
.dropdown-content {
    position: absolute;
    top: 100%;
    left: 0;
    right: -20px;
    background: #fff;
    box-shadow: 0 2px 12px rgba(0,0,0,0.1);
    border-radius: 0 0 4px 4px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
}

/* 下拉菜单显示状态 */
.dropdown:hover .dropdown-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* 下拉菜单内容容器 */
.dropdown-container {
    padding: 20px;
    min-width: 600px;
}