/* 全局样式 */
* {
    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;
}

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

/* 登录页面样式 */
.login-body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.login-container {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

.login-container h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
}

.error-message {
    background-color: #f8d7da;
    color: #721c24;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 20px;
    border: 1px solid #f5c6cb;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #555;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
}

.form-group button {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: transform 0.2s;
}

.form-group button:hover {
    transform: translateY(-2px);
}

/* 头部样式 */
header {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    color: #333;
    font-size: 24px;
}

.user-info {
    font-size: 14px;
    color: #666;
}

.user-info a {
    color: #667eea;
    text-decoration: none;
}

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

/* 导航样式 */
nav {
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

nav ul {
    list-style: none;
    display: flex;
}

nav ul li {
    flex: 1;
}

nav ul li a {
    display: block;
    padding: 15px 20px;
    text-align: center;
    text-decoration: none;
    color: #333;
    transition: all 0.3s;
    border-radius: 10px;
}

nav ul li a:hover {
    background: #667eea;
    color: white;
}

nav ul li a.active {
    background: #667eea;
    color: white;
}

/* 主要内容区域 */
main {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

main h2 {
    margin-bottom: 20px;
    color: #333;
    padding-bottom: 10px;
    border-bottom: 2px solid #667eea;
}

.current-time {
    text-align: center;
    color: #667eea;
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 30px;
    padding: 15px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

/* 分析汇总表样式 */
.analysis-container {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 2px solid #667eea;
}

.analysis-container h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
}

.chart-container {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
    overflow-x: auto;
}

.chart-container h3 {
    text-align: center;
    margin-bottom: 20px;
    color: #333;
}

.chart-container canvas {
    max-height: 300px;
    width: 100% !important;
    height: auto !important;
    min-width: 800px; /* 确保图表有足够的宽度显示所有数据 */
}

/* 统计卡片样式 */
.stats-container {
    margin-bottom: 30px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.stat-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.stat-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.stat-number {
    font-size: 32px;
    font-weight: bold;
    margin: 0;
}

/* 表格样式 */
.table-container {
    overflow-x: auto;
    margin-bottom: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

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

table th {
    background-color: #667eea;
    color: white;
    font-weight: bold;
}

table tr:nth-child(even) {
    background-color: #f8f9fa;
}

table tr:hover {
    background-color: #e9ecef;
}

.edit-btn {
    background-color: #28a745;
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
}

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

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-top: 20px;
}

.pagination a {
    padding: 10px 15px;
    background-color: #667eea;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.pagination a:hover {
    background-color: #5a6fd8;
}

.pagination span {
    font-weight: bold;
    color: #333;
}

/* 过滤器样式 */
.filter-container {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.filter-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    align-items: end;
}

.filter-row .form-group {
    margin-bottom: 0;
}

.filter-row .form-group input, 
.filter-row .form-group select {
    width: 100%;
}

.filter-row .form-group button {
    width: auto;
    padding: 10px 15px;
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background-color: white;
    margin: 10% auto;
    padding: 20px;
    border-radius: 10px;
    width: 90%;
    max-width: 500px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.close {
    position: absolute;
    right: 15px;
    top: 15px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    color: #aaa;
}

.close:hover {
    color: #000;
}

.modal-content h2 {
    margin-top: 0;
    padding-bottom: 10px;
    border-bottom: 2px solid #667eea;
}

.modal-content .form-group button {
    width: auto;
    display: inline-block;
    margin-right: 10px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    header {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    nav ul {
        flex-direction: column;
    }
    
    nav ul li a {
        border-bottom: 1px solid #eee;
    }
    
    nav ul li:last-child a {
        border-bottom: none;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .filter-row {
        grid-template-columns: 1fr;
    }
}