/* ==========================================
   后台管理 - 样式表
   ========================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.admin-body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
    background: #f8f9fc;
    color: #333;
    line-height: 1.6;
}

.admin-layout {
    display: flex;
    min-height: 100vh;
}

/* 侧边栏 */
.admin-sidebar {
    width: 240px;
    background: linear-gradient(180deg, #831843 0%, #be185d 50%, #db2777 100%);
    color: white;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    overflow-y: auto;
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
}

.sidebar-logo span:first-child {
    font-size: 1.5rem;
}

.sidebar-nav {
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    border-radius: 8px;
    margin-bottom: 4px;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.sidebar-link:hover {
    background: rgba(255, 255, 255, 0.15);
    color: white;
}

.sidebar-link.active {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    font-weight: 600;
}

/* 主内容区 */
.admin-main {
    flex: 1;
    margin-left: 240px;
    min-height: 100vh;
}

.admin-header {
    background: white;
    padding: 16px 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.admin-header h1 {
    font-size: 1.3rem;
    color: #1f2937;
    font-weight: 600;
}

.admin-user {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #6b7280;
    font-size: 0.9rem;
}

.admin-content {
    padding: 30px;
}

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    border-radius: 12px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    border: 1px solid #f3f4f6;
}

.stat-icon {
    font-size: 2rem;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fdf2f8;
    border-radius: 12px;
}

.stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1f2937;
}

.stat-label {
    color: #6b7280;
    font-size: 0.85rem;
}

/* 快捷操作 */
.quick-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

/* 管理卡片 */
.admin-card {
    background: white;
    border-radius: 12px;
    margin-bottom: 24px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    border: 1px solid #f3f4f6;
    overflow: hidden;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border-bottom: 1px solid #f3f4f6;
}

.card-header h3 {
    font-size: 1rem;
    color: #374151;
    font-weight: 600;
}

/* 表格 */
.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: 12px 24px;
    text-align: left;
    border-bottom: 1px solid #f3f4f6;
    font-size: 0.9rem;
}

.admin-table th {
    background: #f9fafb;
    color: #6b7280;
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.admin-table tr:hover {
    background: #fdf2f8;
}

.admin-table td:last-child {
    white-space: nowrap;
}

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

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: #374151;
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid #e5e7eb;
    border-radius: 8px;
    font-size: 0.95rem;
    transition: all 0.2s;
    font-family: inherit;
    background: white;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #ec4899;
    box-shadow: 0 0 0 3px rgba(236, 72, 153, 0.1);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-row {
    display: flex;
    gap: 16px;
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid #f3f4f6;
}

/* 按钮 */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    text-decoration: none;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, #ec4899, #db2777);
    color: white;
    box-shadow: 0 2px 8px rgba(236, 72, 153, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #db2777, #be185d);
    transform: translateY(-1px);
    color: white;
}

.btn-secondary {
    background: #f3f4f6;
    color: #374151;
}

.btn-secondary:hover {
    background: #e5e7eb;
}

.btn-danger {
    background: #fee2e2;
    color: #dc2626;
}

.btn-danger:hover {
    background: #fecaca;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

/* 徽章 */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success {
    background: #d1fae5;
    color: #065f46;
}

.badge-warning {
    background: #fef3c7;
    color: #92400e;
}

.badge-danger {
    background: #fee2e2;
    color: #991b1b;
}

/* 消息提示 */
.alert {
    padding: 12px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 6px;
    padding: 16px;
}

.pagination a {
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    color: #6b7280;
    text-decoration: none;
    border: 1px solid #e5e7eb;
}

.pagination a:hover {
    background: #fdf2f8;
    border-color: #ec4899;
}

.pagination .current {
    background: #ec4899;
    color: white;
    border-color: #ec4899;
}

/* 响应式 */
@media (max-width: 768px) {
    .admin-sidebar {
        width: 60px;
    }

    .sidebar-logo span:last-child,
    .sidebar-link span {
        display: none;
    }

    .admin-main {
        margin-left: 60px;
    }

    .admin-content {
        padding: 16px;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .form-row {
        flex-direction: column;
    }

    .admin-table {
        font-size: 0.8rem;
    }

    .admin-table th,
    .admin-table td {
        padding: 8px 12px;
    }
}