/* 后台管理样式 */

/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Microsoft YaHei", Arial, sans-serif;
    font-size: 14px;
    color: #333;
    background-color: #f0f2f5;
    line-height: 1.6;
}

a {
    color: #1890ff;
    text-decoration: none;
}

a:hover {
    color: #40a9ff;
}

.clearfix {
    clear: both;
}

/* 登录页面 */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #1890ff 0%, #0050b3 100%);
}

.login-box {
    width: 400px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    padding: 40px;
}

.login-box .logo {
    text-align: center;
    margin-bottom: 30px;
}

.login-box .logo h1 {
    font-size: 28px;
    color: #1890ff;
}

.login-box .logo p {
    color: #999;
    margin-top: 10px;
}

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

.login-box label {
    display: block;
    font-weight: bold;
    margin-bottom: 8px;
    color: #666;
}

.login-box input {
    width: 100%;
    padding: 12px;
    border: 1px solid #d9d9d9;
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.login-box input:focus {
    border-color: #1890ff;
    outline: none;
}

.login-box .btn {
    width: 100%;
    padding: 12px;
    background-color: #1890ff;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

.login-box .btn:hover {
    background-color: #40a9ff;
}

.login-box .message {
    padding: 10px;
    margin-bottom: 20px;
    background-color: #fff2f0;
    color: #ff4d4f;
    border: 1px solid #ffccc7;
    border-radius: 4px;
    text-align: center;
}

/* 后台布局 */
.admin-wrapper {
    display: flex;
    min-height: 100vh;
}

/* 侧边栏 */
.admin-sidebar {
    width: 220px;
    background-color: #001529;
    color: #fff;
    flex-shrink: 0;
}

.admin-sidebar .logo {
    padding: 20px;
    text-align: center;
    background-color: #002140;
}

.admin-sidebar .logo h1 {
    font-size: 20px;
    color: #fff;
}

.admin-sidebar .menu {
    padding: 10px 0;
}

.admin-sidebar .menu-item {
    padding: 12px 20px;
    color: rgba(255,255,255,0.65);
    display: block;
    transition: all 0.3s;
}

.admin-sidebar .menu-item:hover {
    color: #fff;
    background-color: #1890ff;
}

.admin-sidebar .menu-item.active {
    color: #fff;
    background-color: #1890ff;
}

.admin-sidebar .menu-item i {
    margin-right: 10px;
}

.admin-sidebar .submenu {
    padding-left: 20px;
}

.admin-sidebar .submenu-item {
    padding: 10px 20px;
    color: rgba(255,255,255,0.65);
    display: block;
}

.admin-sidebar .submenu-item:hover,
.admin-sidebar .submenu-item.active {
    color: #fff;
}

/* 主内容区 */
.admin-main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* 顶部栏 */
.admin-header {
    height: 60px;
    background-color: #fff;
    border-bottom: 1px solid #f0f0f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.admin-header .breadcrumb {
    color: #666;
}

.admin-header .breadcrumb a {
    color: #1890ff;
}

.admin-header .user-info {
    display: flex;
    align-items: center;
}

.admin-header .user-info span {
    margin-right: 15px;
    color: #666;
}

.admin-header .user-info a {
    color: #ff4d4f;
}

/* 内容区 */
.admin-content {
    padding: 20px;
    flex: 1;
}

/* 统计卡片 */
.stat-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background-color: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.stat-card .icon {
    width: 50px;
    height: 50px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #fff;
    margin-bottom: 15px;
}

.stat-card .icon.blue {
    background-color: #1890ff;
}

.stat-card .icon.green {
    background-color: #52c41a;
}

.stat-card .icon.orange {
    background-color: #fa8c16;
}

.stat-card .icon.red {
    background-color: #f5222d;
}

.stat-card .title {
    color: #666;
    margin-bottom: 10px;
}

.stat-card .value {
    font-size: 28px;
    font-weight: bold;
    color: #333;
}

/* 内容面板 */
.panel {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.panel-header {
    padding: 15px 20px;
    border-bottom: 1px solid #f0f0f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.panel-header h3 {
    font-size: 16px;
    color: #333;
}

.panel-header .actions {
    display: flex;
    gap: 10px;
}

.panel-body {
    padding: 20px;
}

/* 工具栏 */
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.toolbar .search {
    display: flex;
    gap: 10px;
}

.toolbar .search input {
    padding: 8px 12px;
    border: 1px solid #d9d9d9;
    border-radius: 4px;
    width: 200px;
}

.toolbar .search select {
    padding: 8px 12px;
    border: 1px solid #d9d9d9;
    border-radius: 4px;
}

/* 按钮 */
.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.btn-primary {
    background-color: #1890ff;
    color: #fff;
}

.btn-primary:hover {
    background-color: #40a9ff;
}

.btn-success {
    background-color: #52c41a;
    color: #fff;
}

.btn-success:hover {
    background-color: #73d13d;
}

.btn-danger {
    background-color: #ff4d4f;
    color: #fff;
}

.btn-danger:hover {
    background-color: #ff7875;
}

.btn-default {
    background-color: #fff;
    color: #333;
    border: 1px solid #d9d9d9;
}

.btn-default:hover {
    color: #1890ff;
    border-color: #1890ff;
}

/* 表格 */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #f0f0f0;
}

.table th {
    background-color: #fafafa;
    font-weight: bold;
    color: #333;
}

.table tr:hover {
    background-color: #f5f5f5;
}

.table .actions {
    display: flex;
    gap: 10px;
}

.table .actions a {
    color: #1890ff;
}

.table .actions a.delete {
    color: #ff4d4f;
}

.table .status {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
}

.table .status.active {
    background-color: #f6ffed;
    color: #52c41a;
}

.table .status.inactive {
    background-color: #fff7e6;
    color: #fa8c16;
}

/* 表单 */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: bold;
    margin-bottom: 8px;
    color: #666;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #d9d9d9;
    border-radius: 4px;
    font-size: 14px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: #1890ff;
    outline: none;
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.form-group .checkbox {
    display: flex;
    align-items: center;
}

.form-group .checkbox input {
    width: auto;
    margin-right: 8px;
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

/* 消息提示 */
.message {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 4px;
}

.message.success {
    background-color: #f6ffed;
    color: #52c41a;
    border: 1px solid #b7eb8f;
}

.message.error {
    background-color: #fff2f0;
    color: #ff4d4f;
    border: 1px solid #ffccc7;
}

.message.warning {
    background-color: #fffbe6;
    color: #faad14;
    border: 1px solid #ffe58f;
}

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

.pagination a,
.pagination span {
    display: inline-block;
    padding: 8px 12px;
    margin-right: 5px;
    border: 1px solid #d9d9d9;
    color: #666;
    border-radius: 4px;
}

.pagination a:hover,
.pagination .current {
    background-color: #1890ff;
    color: #fff;
    border-color: #1890ff;
}

/* 留言详情 */
.message-detail {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
}

.message-detail .header {
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #f0f0f0;
}

.message-detail .header h4 {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
}

.message-detail .header .meta {
    color: #999;
    font-size: 14px;
}

.message-detail .content {
    padding: 20px;
    background-color: #fafafa;
    border-radius: 4px;
    margin-bottom: 20px;
}

.message-detail .reply-box {
    border-top: 1px solid #f0f0f0;
    padding-top: 20px;
}

.message-detail .reply-box h5 {
    font-size: 16px;
    color: #333;
    margin-bottom: 15px;
}

/* 响应式 */
@media (max-width: 1200px) {
    .stat-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .admin-wrapper {
        flex-direction: column;
    }
    
    .admin-sidebar {
        width: 100%;
    }
    
    .admin-sidebar .menu {
        display: flex;
        flex-wrap: wrap;
    }
    
    .admin-sidebar .menu-item {
        flex: 1;
        text-align: center;
    }
    
    .stat-cards {
        grid-template-columns: 1fr;
    }
    
    .toolbar {
        flex-direction: column;
        gap: 10px;
    }
    
    .toolbar .search {
        flex-direction: column;
    }
}