/* 整体样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    width: 100%;
    padding: 20px;
}

/* 侧边栏和内容布局 */
.site-wrapper {
    display: flex;
    flex: 1;
    min-height: calc(100vh - 60px);
}

/* 标题和顶部导航 */
.header {
    background-color: #c62f2f;
    color: white;
    padding: 15px 0;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    height: 60px;
    display: flex;
    align-items: center;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
}

/* 侧边导航栏 */
.sidebar {
    width: 220px;
    min-width: 220px;
    background-color: #2a3042;
    color: #a6b0cf;
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - 60px);
    position: relative;
    transition: all 0.3s ease;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    background-color: #272e3b;
}

.sidebar-header .logo {
    color: white;
    font-size: 1.5rem;
}

.nav {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 0;
}

.nav a {
    color: #a6b0cf;
    text-decoration: none;
    padding: 15px 20px;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    border-left: 3px solid transparent;
    font-size: 1.05rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    border-left-color: #c62f2f;
}

.nav a.active {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    border-left: 3px solid #c62f2f;
    font-weight: bold;
}

/* 退出登录按钮特殊样式 */
.nav a:last-child {
    margin-top: auto;
    background-color: rgba(198, 47, 47, 0.15);
    color: #f8d7da;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.nav a:last-child:hover {
    background-color: rgba(198, 47, 47, 0.3);
}

/* 主要内容样式 */
.content-wrapper {
    flex: 1;
    overflow-x: hidden;
    background-color: #f5f5f5;
}

.main {
    background-color: white;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    padding: 20px;
    margin: 20px;
}

.page-title {
    color: #c62f2f;
    border-bottom: 2px solid #f0f0f0;
    padding-bottom: 10px;
    margin-bottom: 20px;
    font-weight: bold;
}

/* 表单样式 */
.form-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

input[type="text"],
input[type="password"],
input[type="number"],
select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.btn {
    display: inline-block;
    background-color: #c62f2f;
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #a42020;
}

.btn-secondary {
    background-color: #666;
}

.btn-secondary:hover {
    background-color: #555;
}

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

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

.table th {
    background-color: #f5f5f5;
    font-weight: bold;
}

.table tr:hover {
    background-color: #f9f9f9;
}

/* 操作按钮 */
.action-btn {
    margin-right: 5px;
    padding: 5px 10px;
    border-radius: 3px;
    color: white;
    text-decoration: none;
    font-size: 0.9rem;
}

.edit-btn {
    background-color: #4CAF50;
}

.delete-btn {
    background-color: #f44336;
}

/* 提示信息 */
.alert {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 4px;
}

.alert-success {
    background-color: #dff0d8;
    color: #3c763d;
    border: 1px solid #d6e9c6;
}

.alert-danger {
    background-color: #f2dede;
    color: #a94442;
    border: 1px solid #ebccd1;
}

/* 搜索框 */
.search-form {
    margin-bottom: 20px;
    display: flex;
}

.search-form input {
    flex: 1;
    margin-right: 10px;
}

/* 登录页面 */
.login-container {
    max-width: 400px;
    margin: 100px auto;
    background-color: white;
    padding: 30px;
    border-radius: 5px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.login-logo {
    text-align: center;
    margin-bottom: 30px;
    color: #c62f2f;
    font-size: 2rem;
    font-weight: bold;
}

/* 响应式布局 */
@media screen and (max-width: 768px) {
    .site-wrapper {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        min-width: 100%;
        max-height: 300px;
        min-height: auto;
    }
    
    .content-wrapper {
        width: 100%;
    }
    
    .main {
        margin: 10px;
        padding: 15px;
    }
    
    .table {
        display: block;
        overflow-x: auto;
    }
}