/* 基础重置 */
* {
    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: 1.5;
    color: #333;
    background-color: #f5f5f5;
}

/* 登录页面 */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f0f2f5;
}

.login-box {
    width: 360px;
    background: #fff;
    border: 1px solid #ddd;
    padding: 30px;
}

.login-title {
    text-align: center;
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 24px;
    color: #333;
}

.login-form .form-group {
    margin-bottom: 16px;
}

.login-form .form-label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    color: #666;
}

.login-form .form-input {
    width: 100%;
    height: 38px;
    padding: 0 12px;
    border: 1px solid #d9d9d9;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}

.login-form .form-input:focus {
    border-color: #3b82f6;
}

.login-btn {
    width: 100%;
    height: 38px;
    background-color: #3b82f6;
    color: #fff;
    border: none;
    font-size: 14px;
    cursor: pointer;
    margin-top: 8px;
}

.login-btn:hover {
    background-color: #2563eb;
}

.login-error {
    color: #dc2626;
    font-size: 13px;
    margin-bottom: 12px;
    text-align: center;
}

/* 管理后台 - 顶部导航 */
.admin-header {
    height: 50px;
    background-color: #fff;
    border-bottom: 1px solid #e5e5e5;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 600;
    color: #333;
}

.logo-icon {
    width: 28px;
    height: 28px;
    background-color: #3b82f6;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: bold;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    color: #666;
}

.logout-btn {
    color: #666;
    text-decoration: none;
    padding: 4px 12px;
    border: 1px solid #d9d9d9;
    font-size: 13px;
}

.logout-btn:hover {
    color: #3b82f6;
    border-color: #3b82f6;
}

/* 管理后台 - 容器 */
.admin-container {
    display: flex;
    padding-top: 50px;
    min-height: 100vh;
}

/* 侧边栏 */
.admin-sidebar {
    width: 180px;
    background-color: #fff;
    border-right: 1px solid #e5e5e5;
    position: fixed;
    top: 50px;
    left: 0;
    bottom: 0;
    overflow-y: auto;
}

.menu {
    list-style: none;
    padding: 10px 0;
}

.menu-item a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: #555;
    text-decoration: none;
    font-size: 14px;
    border-left: 3px solid transparent;
}

.menu-item a:hover {
    background-color: #f5f5f5;
    color: #3b82f6;
}

.menu-item.active a {
    background-color: #eff6ff;
    color: #3b82f6;
    border-left-color: #3b82f6;
}

.menu-icon {
    font-size: 16px;
}

/* 主内容区 */
.admin-main {
    flex: 1;
    margin-left: 180px;
    padding: 20px;
}

.page-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    color: #333;
}

/* 卡片 */
.card {
    background: #fff;
    border: 1px solid #e5e5e5;
    margin-bottom: 16px;
}

.card-header {
    padding: 12px 16px;
    border-bottom: 1px solid #f0f0f0;
    font-size: 14px;
    font-weight: 600;
    color: #333;
}

.card-body {
    padding: 16px;
}

/* 表单 */
.form-row {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}

.form-group {
    flex: 1;
    margin-bottom: 16px;
}

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

.form-label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    color: #666;
}

.form-input,
.form-select {
    width: 100%;
    height: 36px;
    padding: 0 12px;
    border: 1px solid #d9d9d9;
    font-size: 14px;
    outline: none;
    background-color: #fff;
}

.form-input:focus,
.form-select:focus {
    border-color: #3b82f6;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 36px;
    padding: 0 16px;
    border: 1px solid #d9d9d9;
    background-color: #fff;
    color: #333;
    font-size: 14px;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
}

.btn:hover {
    color: #3b82f6;
    border-color: #3b82f6;
}

.btn-primary {
    background-color: #3b82f6;
    border-color: #3b82f6;
    color: #fff;
}

.btn-primary:hover {
    background-color: #2563eb;
    border-color: #2563eb;
    color: #fff;
}

.btn-success {
    background-color: #10b981;
    border-color: #10b981;
    color: #fff;
}

.btn-success:hover {
    background-color: #059669;
    border-color: #059669;
    color: #fff;
}

.btn-danger {
    background-color: #ef4444;
    border-color: #ef4444;
    color: #fff;
}

.btn-danger:hover {
    background-color: #dc2626;
    border-color: #dc2626;
    color: #fff;
}

.btn-sm {
    height: 28px;
    padding: 0 10px;
    font-size: 12px;
}

.btn-group {
    display: flex;
    gap: 10px;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid #fff;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 6px;
}

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

/* 结果显示 */
.result-box {
    margin-top: 20px;
    padding: 16px;
    border: 1px solid #e5e5e5;
    display: none;
}

.result-box.success {
    border-color: #10b981;
    background-color: #f0fdf4;
}

.result-box.error {
    border-color: #ef4444;
    background-color: #fef2f2;
}

.result-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 8px;
}

.result-box.success .result-title {
    color: #059669;
}

.result-box.error .result-title {
    color: #dc2626;
}

.result-content {
    font-size: 14px;
    color: #555;
}

.result-content p {
    margin-bottom: 6px;
}

/* 日志框 */
.log-box {
    margin-top: 20px;
    padding: 12px;
    background-color: #fafafa;
    border: 1px solid #e5e5e5;
    height: 200px;
    overflow-y: auto;
    font-family: "Courier New", monospace;
    font-size: 12px;
    line-height: 1.6;
}

.log-info {
    color: #666;
}

.log-success {
    color: #059669;
}

.log-error {
    color: #dc2626;
}

.log-warning {
    color: #d97706;
}

/* 提示框 */
.alert {
    padding: 12px 16px;
    margin-bottom: 16px;
    border: 1px solid;
    font-size: 13px;
}

.alert-info {
    background-color: #eff6ff;
    border-color: #bfdbfe;
    color: #1e40af;
}

.alert-success {
    background-color: #f0fdf4;
    border-color: #bbf7d0;
    color: #166534;
}

.alert-warning {
    background-color: #fffbeb;
    border-color: #fde68a;
    color: #92400e;
}

.alert-error {
    background-color: #fef2f2;
    border-color: #fecaca;
    color: #991b1b;
}

/* 表格 */
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.table th,
.table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid #f0f0f0;
}

.table th {
    background-color: #fafafa;
    font-weight: 600;
    color: #666;
}

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

/* 标签 */
.tag {
    display: inline-block;
    padding: 2px 8px;
    font-size: 12px;
    border: 1px solid;
}

.tag-success {
    background-color: #f0fdf4;
    border-color: #bbf7d0;
    color: #166534;
}

.tag-default {
    background-color: #f5f5f5;
    border-color: #e5e5e5;
    color: #666;
}

/* 操作按钮组 */
.actions {
    display: flex;
    gap: 6px;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: #999;
}

.empty-icon {
    font-size: 36px;
    margin-bottom: 10px;
}

.empty-text {
    font-size: 14px;
}

/* 响应式 */
@media (max-width: 768px) {
    .admin-sidebar {
        width: 60px;
    }
    
    .menu-item a span:not(.menu-icon) {
        display: none;
    }
    
    .admin-main {
        margin-left: 60px;
    }
    
    .form-row {
        flex-direction: column;
    }
    
    .btn-group {
        flex-wrap: wrap;
    }
}