/* 通用样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.btn-primary {
    background-color: #409eff;
    color: #fff;
}

.btn-primary:hover {
    background-color: #66b1ff;
}

.btn-success {
    background-color: #67c23a;
    color: #fff;
}

.btn-danger {
    background-color: #f56c6c;
    color: #fff;
}

.btn-block {
    width: 100%;
}

/* 表格样式 */
.table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    margin-top: 20px;
}

.table th,
.table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ebeef5;
}

.table th {
    background-color: #f5f7fa;
    font-weight: 600;
}

.table tr:hover {
    background-color: #f5f7fa;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #dcdfe6;
    border-radius: 4px;
    font-size: 14px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #409eff;
}

/* 卡片样式 */
.card {
    background: #fff;
    border-radius: 4px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
}

.card-header {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #ebeef5;
}

/* 导航栏 */
.navbar {
    background: #fff;
    box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
    padding: 0 20px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    font-size: 20px;
    font-weight: 600;
    color: #409eff;
}

.navbar-menu {
    display: flex;
    list-style: none;
    gap: 20px;
}

.navbar-menu a {
    text-decoration: none;
    color: #333;
    padding: 8px 16px;
    border-radius: 4px;
    transition: all 0.3s;
}

.navbar-menu a:hover,
.navbar-menu a.active {
    background-color: #ecf5ff;
    color: #409eff;
}

/* 侧边栏 */
.sidebar {
    width: 200px;
    background: #fff;
    min-height: calc(100vh - 60px);
    padding: 20px 0;
    box-shadow: 2px 0 12px 0 rgba(0, 0, 0, 0.1);
}

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

.sidebar-menu li {
    margin-bottom: 5px;
}

.sidebar-menu a {
    display: block;
    padding: 12px 20px;
    color: #333;
    text-decoration: none;
    transition: all 0.3s;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background-color: #ecf5ff;
    color: #409eff;
}

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

.layout {
    display: flex;
}

/* 响应式 */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        min-height: auto;
    }
    
    .layout {
        flex-direction: column;
    }
}

/* 引入移动端样式 */
@import url('mobile.css');

/* 工具类 */
.text-center {
    text-align: center;
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

.hidden {
    display: none;
}