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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f4f4;
}

.container {
    width: 80%;
    margin: 0 auto;
    overflow: hidden;
}

/* 头部样式 */
header {
    background: #35424a;
    color: #ffffff;
    padding-top: 30px;
    min-height: 70px;
    border-bottom: #e8491d 3px solid;
}

header a {
    color: #ffffff;
    text-decoration: none;
    text-transform: uppercase;
    font-size: 16px;
}

header ul {
    padding: 0;
    margin: 0;
    list-style: none;
    overflow: hidden;
}

header li {
    float: left;
    display: inline;
    padding: 0 20px 0 20px;
}

header #branding {
    float: left;
}

header #branding h1 {
    margin: 0;
}

header nav {
    float: right;
    margin-top: 10px;
}

header .highlight, header .current a {
    color: #e8491d;
    font-weight: bold;
}

header a:hover {
    color: #cccccc;
    font-weight: bold;
}

/* 主要内容样式 */
.main {
    padding: 20px 0;
    min-height: 400px;
}

/* 表单样式 */
.form-container {
    background: #ffffff;
    padding: 20px;
    margin-top: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 15px;
}

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

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background: #35424a;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    font-size: 16px;
}

.btn:hover {
    background: #e8491d;
    color: #ffffff;
}

.btn-primary {
    background: #35424a;
}

.btn-success {
    background: #2ecc71;
}

.btn-danger {
    background: #e74c3c;
}

/* 表格样式 */
.table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

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

.table th {
    background-color: #35424a;
    color: white;
    font-weight: bold;
}

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

/* 卡片样式 */
.card {
    background: #ffffff;
    padding: 20px;
    margin: 10px 0;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.card-header {
    background: #35424a;
    color: white;
    padding: 10px 15px;
    margin: -20px -20px 15px -20px;
    border-radius: 5px 5px 0 0;
}

.card-footer {
    background: #f4f4f4;
    padding: 10px 15px;
    margin: 15px -20px -20px -20px;
    border-radius: 0 0 5px 5px;
    text-align: right;
}

/* 状态标签样式 */
.status {
    display: inline-block;
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: bold;
}

.status-active {
    background-color: #e74c3c;
    color: white;
}

.status-expired {
    background-color: #95a5a6;
    color: white;
}

.status-appealed {
    background-color: #3498db;
    color: white;
}

.status-pending {
    background-color: #f39c12;
    color: white;
}

.status-approved {
    background-color: #2ecc71;
    color: white;
}

.status-rejected {
    background-color: #e74c3c;
    color: white;
}

/* 响应式设计 */
@media(max-width: 768px) {
    header #branding,
    header nav,
    header nav li {
        float: none;
        text-align: center;
        width: 100%;
    }
    
    header {
        padding-bottom: 20px;
    }
    
    header li {
        padding: 5px 10px;
    }
    
    .container {
        width: 95%;
    }
    
    .table {
        font-size: 14px;
        overflow-x: auto;
        display: block;
    }
    
    .table th,
    .table td {
        padding: 8px;
        white-space: nowrap;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 10px;
    }
    
    /* 搜索容器 */
    .search-container {
        text-align: center;
    }
    
    .search-container input[type="text"] {
        width: 100%;
        margin-bottom: 10px;
    }
    
    /* 统计卡片 */
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    /* 后台导航 */
    .admin-nav li {
        display: block;
        margin: 5px 0;
        padding: 5px;
    }
    
    /* 模态框 */
    [id^="appeal-modal-"] {
        padding: 10px;
    }
    
    [id^="appeal-modal-"] > div {
        width: 95%;
        margin: 10% auto;
        padding: 15px;
    }
    
    [id^="report-modal-"] {
        padding: 10px;
    }
    
    [id^="report-modal-"] > div {
        width: 95%;
        margin: 10% auto;
        padding: 15px;
    }
    
    /* 分页 */
    .pagination a {
        padding: 6px 12px;
        font-size: 14px;
    }
}

/* 手机设备优化 */
@media(max-width: 480px) {
    h1 {
        font-size: 24px;
    }
    
    h2 {
        font-size: 20px;
    }
    
    .main {
        padding: 10px 0;
    }
    
    .form-container,
    .card {
        padding: 15px;
    }
    
    .form-group input[type="text"],
    .form-group input[type="email"],
    .form-group input[type="password"],
    .form-group textarea,
    .form-group select {
        padding: 8px;
    }
    
    .table {
        font-size: 12px;
    }
    
    .table th,
    .table td {
        padding: 6px;
    }
    
    .status {
        padding: 3px 6px;
        font-size: 10px;
    }
    
    /* 登录容器 */
    .login-container {
        padding: 20px;
        margin: 20px auto;
    }
    
    /* 统计卡片 */
    .stat-number {
        font-size: 28px;
    }
}

/* 页脚样式 */
footer {
    background: #35424a;
    color: #ffffff;
    text-align: center;
    padding: 20px;
    margin-top: 20px;
    border-top: #e8491d 3px solid;
}

/* 消息样式 */
.message {
    padding: 15px;
    margin: 10px 0;
    border-radius: 5px;
    font-weight: bold;
}

.message-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.message-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* 登录页面样式 */
.login-container {
    max-width: 400px;
    margin: 50px auto;
    background: #ffffff;
    padding: 30px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.login-container h2 {
    text-align: center;
    margin-bottom: 20px;
    color: #35424a;
}

/* 后台导航样式 */
.admin-nav {
    background: #35424a;
    color: white;
    padding: 10px 0;
    margin-bottom: 20px;
}

.admin-nav ul {
    list-style: none;
    text-align: center;
}

.admin-nav li {
    display: inline;
    margin: 0 10px;
}

.admin-nav a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

.admin-nav a:hover {
    color: #e8491d;
}

/* 统计卡片样式 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.stat-card {
    background: #ffffff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    text-align: center;
}

.stat-card h3 {
    color: #35424a;
    margin-bottom: 10px;
}

.stat-number {
    font-size: 36px;
    font-weight: bold;
    color: #e8491d;
}

/* 搜索框样式 */
.search-container {
    margin: 20px 0;
    text-align: right;
}

.search-container input[type="text"] {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    width: 300px;
}

.search-container .btn {
    padding: 10px 15px;
    margin-left: 10px;
}

/* 分页样式 */
.pagination {
    text-align: center;
    margin: 20px 0;
}

.pagination a {
    display: inline-block;
    padding: 8px 16px;
    margin: 0 5px;
    background: #f4f4f4;
    color: #35424a;
    text-decoration: none;
    border-radius: 4px;
}

.pagination a.active {
    background: #35424a;
    color: white;
}

.pagination a:hover {
    background: #e8491d;
    color: white;
}