/* 导航栏基础样式 */
#navigation {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    position: fixed;
    right: 0;
    left: 0;
    z-index: 1030;
}

#navigation a {
    color: #333;
    text-decoration: none;
    font-weight: 500;
}

.container-fluid {
    padding: 0;
    margin: 0;
}

/* 导航块样式 */
.navigationBlock {
    height: 235px;
    width: 170px;
    padding: 15px;
    margin: 8px;
    border-left: 2px solid #e9ecef;
    white-space: nowrap;
    overflow: hidden;
    float: left;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.navigationBlock:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.navigationButtonCover {
    border-bottom: 1px solid #e9ecef;
}

.navigationButton {
    padding: 8px 12px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.navigationButton:hover {
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    color: white;
}

/* 导航栏组件 */
.navbar-collapse {
    padding: 0;
}

.navbar-nav {
    margin: 0;
    float: right;
}

.navbar-nav > li > a {
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

/* 下拉菜单 */
.dropdown-menu {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    margin-top: 0;
}

.dropdown-menu .sub-menu {
    left: 100%;
    position: absolute;
    top: 0;
    visibility: hidden;
    margin-top: -5px;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.dropdown-menu li:hover .sub-menu {
    visibility: visible;
}

.dropdown:hover .dropdown-menu {
    display: block;
}

.navbar-nav > li > .dropdown-menu > li > a {
    background: rgba(255, 255, 255, 0.9);
    border: none;
    color: #333;
    border-radius: 6px;
    margin: 2px 4px;
    transition: all 0.3s ease;
}

.navbar-nav > li > .dropdown-menu > li > a:hover {
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    color: white;
}

/* 移动端切换按钮 */
.navbar-toggle {
    position: relative;
    float: right;
    padding: 5px 10px;
    margin: 8px 15px;
    background-image: none;
    border-radius: 8px;
    border: 2px solid #007bff;
}

.navbar-collapse.collapse.in {
    border-top: 1px solid #e9ecef;
}

/* 响应式设计 */
@media screen and (min-width: 1380px) {
    .navbar-collapse.collapse {
        display: none !important;
    }
    .navbar-collapse.collapse.in {
        display: block !important;
    }
    .navbar-header.collapse, .navbar-toggle {
        display: block !important;
    }
    .navbar-header {
        float: none;
    }
}

@media screen and (max-width: 1380px) {
    .container-fluid > .navbar-collapse {
        margin: 0;
    }
    .mainNav {
        max-height: 500px;
        overflow: auto;
    }
    .navigationBlock {
        width: 100%;
        max-width: 170px;
        margin: 0 15px;
        border-left: none;
        border-top: 2px solid #e9ecef;
        border-bottom: 2px solid #e9ecef;
    }
    .navbar-nav {
        float: left;
    }
    .navbar-collapse.collapse {
        display: none !important;
    }
    .navbar-collapse.collapse.in {
        display: block !important;
    }
    .navbar-header.collapse, .navbar-toggle {
        display: block !important;
    }
    .navbar-header {
        float: none;
    }
}

@media screen and (min-width: 768px) and (max-width: 1380px) {
    .navbar-collapse.collapse {
        overflow: auto !important;
    }
}