/* 管理后台样式 */
.admin-container {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 250px;
    background-color: #343a40;
    color: #fff;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    transition: all 0.3s;
}

.admin-sidebar.collapsed {
    width: 60px;
}

.admin-content {
    flex: 1;
    margin-left: 250px;
    padding: 20px;
    transition: all 0.3s;
}

.admin-content.expanded {
    margin-left: 60px;
}

.sidebar-header {
    padding: 20px;
    background-color: #212529;
}

.sidebar-header h3 {
    margin: 0;
    font-size: 1.5rem;
}

.sidebar-menu {
    padding: 0;
    list-style: none;
}

.sidebar-menu li {
    margin: 0;
    padding: 0;
}

.sidebar-menu li a {
    padding: 15px 20px;
    display: block;
    color: #fff;
    text-decoration: none;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

.sidebar-menu li a:hover,
.sidebar-menu li a.active {
    background-color: #2c3136;
    border-left-color: #0056b3;
}

.sidebar-menu li a i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

.admin-header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.toggle-sidebar {
    background: none;
    border: none;
    color: #343a40;
    font-size: 1.5rem;
    cursor: pointer;
}

.admin-user-dropdown {
    position: relative;
}

.admin-user-dropdown .dropdown-toggle {
    background: none;
    border: none;
    color: #343a40;
    cursor: pointer;
    display: flex;
    align-items: center;
}

.admin-user-dropdown .dropdown-toggle img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    margin-right: 10px;
}

.admin-card {
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    margin-bottom: 20px;
}

.admin-card .card-header {
    background-color: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
    padding: 15px 20px;
}

.admin-card .card-body {
    padding: 20px;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #e9ecef;
}

.admin-table th {
    background-color: #f8f9fa;
    font-weight: 600;
}

.admin-table tr:hover {
    background-color: #f8f9fa;
}

.admin-table .actions {
    display: flex;
    gap: 5px;
}

.admin-table .actions .btn {
    padding: 5px 10px;
    font-size: 0.875rem;
}

.admin-form .form-group {
    margin-bottom: 20px;
}

.admin-form label {
    font-weight: 600;
    margin-bottom: 8px;
    display: block;
}

.admin-pagination {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

.admin-pagination .page-item .page-link {
    color: #0056b3;
}

.admin-pagination .page-item.active .page-link {
    background-color: #0056b3;
    border-color: #0056b3;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .admin-sidebar {
        width: 60px;
    }
    
    .admin-sidebar.expanded {
        width: 250px;
    }
    
    .admin-content {
        margin-left: 60px;
    }
    
    .admin-content.collapsed {
        margin-left: 250px;
    }
    
    .sidebar-menu li a span {
        display: none;
    }
    
    .admin-sidebar.expanded .sidebar-menu li a span {
        display: inline;
    }
}