/* ===================== 全局样式重置 ===================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft Yahei", "微软雅黑", Arial, sans-serif;
}

html, body {
    height: 100%;
    min-height: 100vh;
    background-color: #f8f9fa;
}

body {
    display: flex;
    font-size: 14px;
    color: #333;
    line-height: 1.6;
}

/* 清除列表样式 */
ul, li {
    list-style: none;
}

/* 清除链接默认样式 */
a {
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
}

/* 清除按钮默认样式 */
button {
    border: none;
    outline: none;
    cursor: pointer;
    background: none;
}

/* 清除输入框默认样式 */
input, textarea, select {
    outline: none;
    border: 1px solid #ced4da;
    border-radius: 4px;
    padding: 8px 12px;
    font-size: 14px;
    color: #333;
    transition: border-color 0.2s ease;
}

input:focus, textarea:focus, select:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

/* ===================== 左侧导航样式 ===================== */
.sidebar {
    width: 200px;
    background-color: #2f4050;
    color: #a7b1c2;
    min-height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
    overflow-y: auto;
}

/* 导航Logo区域 */
.sidebar .logo {
    padding: 20px 0;
    font-size: 16px;
    font-weight: bold;
    text-align: center;
    border-bottom: 1px solid #3d5066;
    background-color: #1f2d3d;
    color: #fff;
}

/* 导航菜单 */
.sidebar .nav-menu {
    padding: 10px 0;
}

.sidebar .nav-item {
    margin: 2px 0;
}

.sidebar .nav-link {
    display: block;
    padding: 12px 20px;
    color: #a7b1c2;
    border-left: 3px solid transparent;
}

/* 导航hover和激活状态 */
.sidebar .nav-link:hover {
    background-color: #1ab394;
    color: #fff;
    border-left-color: #1ab394;
}

.sidebar .nav-link.active {
    background-color: #1ab394;
    color: #fff;
    border-left-color: #1ab394;
}

/* 底部用户信息 */
.sidebar .user-info {
    position: absolute;
    bottom: 20px;
    width: 100%;
    padding: 0 20px;
    font-size: 12px;
    color: #a7b1c2;
    line-height: 1.5;
}

.sidebar .user-info a {
    color: #1ab394;
}

.sidebar .user-info a:hover {
    text-decoration: underline;
}

/* ===================== 右侧内容区域 ===================== */
.content {
    margin-left: 200px;
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    min-height: 100vh;
}

/* ===================== 公共面板样式 ===================== */
.panel {
    background-color: #fff;
    padding: 20px;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    margin-bottom: 20px;
}

/* ===================== 按钮样式 ===================== */
.btn {
    display: inline-block;
    padding: 8px 16px;
    background-color: #007bff;
    color: #fff;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    font-size: 14px;
    margin: 0 5px;
    transition: background-color 0.2s ease;
}

.btn:hover {
    background-color: #0056b3;
}

/* 成功按钮 */
.btn-success {
    background-color: #28a745;
    font-size: 14px;
}

.btn-success:hover {
    background-color: #218838;
}

/* 危险按钮 */
.btn-danger {
    background-color: #dc3545;
}

.btn-danger:hover {
    background-color: #c82333;
}

/* 默认/灰色按钮 */
.btn-default {
    background-color: #6c757d;
}

.btn-default:hover {
    background-color: #545b62;
}

/* 小按钮 */
.btn-sm {
    padding: 4px 8px;
    font-size: 12px;
}

/* ===================== 表格样式 ===================== */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
    background-color: #fff;
}

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

.table th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: #495057;
    white-space: nowrap;
}

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

/* ===================== 表单样式 ===================== */
.form-control {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    font-size: 14px;
    color: #495057;
    background-color: #fff;
}

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

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #495057;
}

/* ===================== 文本颜色样式 ===================== */
.text-success {
    color: #28a745;
}

.text-danger {
    color: #dc3545;
}

.text-primary {
    color: #007bff;
}

.text-secondary {
    color: #6c757d;
}

/* ===================== 搜索框样式 ===================== */
.search-box {
    margin-bottom: 15px;
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

/* ===================== 响应式适配 ===================== */
@media (max-width: 768px) {
    /* 小屏幕下收缩侧边栏 */
    .sidebar {
        width: 60px;
    }

    .sidebar .logo span,
    .sidebar .nav-link span,
    .sidebar .user-info {
        display: none;
    }

    .sidebar .nav-link {
        text-align: center;
        padding: 12px 0;
    }

    /* 调整内容区域边距 */
    .content {
        margin-left: 60px;
        padding: 10px;
    }

    /* 表格响应式 */
    .table {
        display: block;
        overflow-x: auto;
    }

    /* 按钮适配 */
    .btn {
        margin: 5px 0;
        width: 100%;
    }
}

/* ===================== 辅助样式 ===================== */
/* 居中对齐 */
.text-center {
    text-align: center;
}

/* 右对齐 */
.text-right {
    text-align: right;
}

/* 隐藏元素 */
.hide {
    display: none;
}

/* 清除浮动 */
.clearfix::after {
    content: "";
    display: block;
    clear: both;
}

/* 加载中样式（备用） */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0, 123, 255, 0.3);
    border-radius: 50%;
    border-top-color: #007bff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}