/* 重置样式 */
* {
    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;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

a {
    text-decoration: none;
    color: #007bff;
}

a:hover {
    text-decoration: underline;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 400;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    border: 1px solid transparent;
    border-radius: 4px;
    transition: all 0.3s;
}

.btn:hover {
    text-decoration: none;
    opacity: 0.9;
}

.btn-primary {
    color: #fff;
    background-color: #007bff;
    border-color: #007bff;
}

.btn-secondary {
    color: #fff;
    background-color: #6c757d;
    border-color: #6c757d;
}

.btn-success {
    color: #fff;
    background-color: #28a745;
    border-color: #28a745;
}

.btn-danger {
    color: #fff;
    background-color: #dc3545;
    border-color: #dc3545;
}

.btn-warning {
    color: #212529;
    background-color: #ffc107;
    border-color: #ffc107;
}

.btn-info {
    color: #fff;
    background-color: #17a2b8;
    border-color: #17a2b8;
}

.btn-sm {
    padding: 4px 8px;
    font-size: 12px;
}

.btn-block {
    display: block;
    width: 100%;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-control {
    display: block;
    width: 100%;
    padding: 8px 12px;
    font-size: 14px;
    line-height: 1.5;
    color: #495057;
    background-color: #fff;
    border: 1px solid #ced4da;
    border-radius: 4px;
    transition: border-color 0.15s ease-in-out;
}

.form-control:focus {
    outline: none;
    border-color: #80bdff;
    box-shadow: 0 0 0 0.2rem rgba(0,123,255,.25);
}

.form-row {
    display: flex;
    gap: 15px;
}

.form-row .form-group {
    flex: 1;
}

select.form-control {
    cursor: pointer;
}

textarea.form-control {
    resize: vertical;
}

.required {
    color: #dc3545;
}

/* 提示信息 */
.alert {
    padding: 12px 20px;
    margin-bottom: 20px;
    border: 1px solid transparent;
    border-radius: 4px;
}

.alert-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

.alert-info {
    color: #0c5460;
    background-color: #d1ecf1;
    border-color: #bee5eb;
}

.alert-warning {
    color: #856404;
    background-color: #fff3cd;
    border-color: #ffeaa7;
}

.alert-danger {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

/* 消息提示 */
.message {
    position: fixed;
    top: 20px;
    right: 20px;
    min-width: 300px;
    padding: 15px 20px;
    background: #fff;
    border-radius: 4px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.15);
    z-index: 9999;
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.message.success {
    border-left: 4px solid #28a745;
}

.message.error {
    border-left: 4px solid #dc3545;
}

.message.warning {
    border-left: 4px solid #ffc107;
}

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

.data-table thead {
    background-color: #f8f9fa;
}

.data-table th,
.data-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #dee2e6;
}

.data-table th {
    font-weight: 600;
    color: #495057;
}

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

/* 状态徽章 */
.status-badge {
    display: inline-block;
    padding: 4px 8px;
    font-size: 12px;
    font-weight: 500;
    border-radius: 3px;
}

.status-active {
    color: #155724;
    background-color: #d4edda;
}

.status-inactive {
    color: #721c24;
    background-color: #f8d7da;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 5px;
    margin-top: 20px;
}

.page-link {
    display: inline-block;
    padding: 6px 12px;
    color: #007bff;
    background-color: #fff;
    border: 1px solid #dee2e6;
    border-radius: 4px;
}

.page-link:hover {
    background-color: #e9ecef;
    text-decoration: none;
}

.page-link.active {
    color: #fff;
    background-color: #007bff;
    border-color: #007bff;
}

/* 页脚 */
.footer {
    background-color: #343a40;
    color: #fff;
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
}

.footer p {
    margin: 5px 0;
}

/* 响应式 */
@media (max-width: 768px) {
    .form-row {
        flex-direction: column;
    }
    
    .data-table {
        font-size: 12px;
    }
    
    .data-table th,
    .data-table td {
        padding: 8px;
    }
}