/* ========== 批量邀请函生成器样式 ========== */
.invitation-batch-container {
    display: flex;
    gap: 20px;
    height: calc(100vh - 100px);
    overflow: hidden;
}

/* 左侧配置区 */
.invitation-controls {
    width: 350px;
    overflow-y: auto;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
}

.invitation-controls h2 {
    margin-bottom: 20px;
    color: #333;
}

.invitation-controls .form-section {
    margin-bottom: 25px;
    padding: 15px;
    background: white;
    border-radius: 6px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.invitation-controls .form-section h3 {
    margin-bottom: 15px;
    font-size: 16px;
    color: #555;
}

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

.file-status {
    margin-top: 8px;
    color: #28a745;
    font-size: 14px;
}

/* 颜色模式切换 */
.color-mode-toggle {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

/* 进度条 */
.progress-section {
    margin-top: 20px;
    padding: 15px;
    background: white;
    border-radius: 6px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.progress-bar {
    width: 100%;
    height: 24px;
    background: #e9ecef;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #28a745, #20c997);
    transition: width 0.3s ease;
}

.progress-text {
    text-align: center;
    font-size: 14px;
    color: #666;
    margin: 0;
}

/* 右侧预览区 */
.invitation-preview {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    overflow: hidden;
}

.invitation-preview h3 {
    margin-bottom: 15px;
    color: #333;
}

.preview-wrapper {
    height: 500px;
    overflow: auto;
    background: #fff;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    padding: 0;
    position: relative;
}

.preview-wrapper canvas {
    display: block;
    max-width: none;
    max-height: none;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    transition: none;
    outline: none;
}

.preview-wrapper canvas:focus {
    box-shadow: 0 4px 12px rgba(0,0,0,0.15), 0 0 0 2px #007bff;
}

.preview-hint {
    margin-top: 10px;
    padding: 10px;
    background: white;
    border-radius: 6px;
    font-size: 13px;
    color: #666;
    text-align: center;
}

/* 邀请函工具新样式 */
.invitation-tool {
    min-height: 100vh;
    display: grid;
    grid-template-rows: minmax(0, 1fr) minmax(0, 2fr);
    gap: 24px;
    width: 100%;
    margin: 0 auto;
    padding: 16px clamp(24px, 4vw, 72px) 32px;
    box-sizing: border-box;
}

.layout-top,
.layout-bottom {
    background: #ffffff;
    border-radius: 18px;
    box-shadow: 0 18px 32px -26px rgba(12, 39, 85, 0.4);
    padding: 22px 26px 26px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    width: 100%;
}

.tool-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.tool-header h2 {
    margin: 0 0 6px;
    font-size: 1.4rem;
    color: #0b1d33;
}

.tool-header p {
    margin: 0;
    color: #526480;
}

.status-inline {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.92rem;
    color: #0d2e5c;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 12px;
}

.layout-top .hint {
    margin: 0;
}

.action-row {
    display: flex;
    align-items: center;
    gap: 16px;
}

.action-hint {
    color: #60718b;
    font-size: 0.88rem;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.preview-header h3 {
    margin: 0;
    font-size: 1.18rem;
    color: #0b1d33;
}

.preview-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

.preview-controls label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: #0d2e5c;
}

.preview-controls input[type='range'] {
    width: 120px;
}

.preview-body {
    display: grid;
    grid-template-columns: minmax(480px, 0.6fr) minmax(360px, 0.4fr);
    gap: 20px;
    align-items: stretch;
}

.preview-stage {
    position: relative;
    width: 100%;
    background: #0e1b2d;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(15, 95, 215, 0.24);
    display: flex;
    justify-content: center;
    align-items: center;
    touch-action: none;
}

.preview-stage canvas {
    width: 100%;
    height: 100%;
    display: block;
    cursor: grab;
}

.preview-stage:active canvas {
    cursor: grabbing;
}

.drag-indicator {
    position: absolute;
    border: 2px dashed rgba(255, 255, 255, 0.9);
    border-radius: 8px;
    pointer-events: none;
}

.drag-indicator.text {
    border-color: rgba(5, 240, 198, 0.85);
}

.magnifier-panel {
    background: #0d1c31;
    border-radius: 12px;
    padding: 12px;
    border: 1px solid rgba(5, 240, 198, 0.24);
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 340px;
    align-self: start;
}

.magnifier-panel canvas {
    width: 100%;
    height: auto;
    border-radius: 10px;
    border: 1px solid rgba(15, 95, 215, 0.32);
    background: #091222;
}

.magnifier-caption {
    text-align: center;
    font-size: 0.9rem;
    color: #8fb5ff;
}

.preview-footer {
    font-size: 0.86rem;
    color: #4a5d75;
    background: #f5f8ff;
    border-radius: 10px;
    padding: 0.65rem 0.85rem;
}

.grid {
    display: grid;
    gap: 10px;
}

.grid.two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.four {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

/* === 邀请函批量工具特定样式（由组件内联迁移） === */
.invitation-preview .preview-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

.invitation-preview .progress-section.compact {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 12px;
    padding: 0;
    background: none;
    border: none;
    border-radius: 0;
}

.invitation-preview .progress-section.compact .progress-bar {
    width: 160px;
    height: 10px;
    background: #f0f0f0;
    border-radius: 5px;
    overflow: hidden;
}

.invitation-preview .progress-section.compact .progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #4CAF50, #45a049);
    border-radius: 4px;
    transition: width 0.3s ease;
}

.invitation-preview .progress-section.compact .progress-text {
    margin: 0;
    font-size: 12px;
    color: #666;
}

.csv-help {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.operation-tips-section {
    margin-top: 15px;
    padding: 15px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 1px solid #dee2e6;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.operation-tips-section h4 {
    margin: 0 0 12px 0;
    color: #495057;
    font-size: 14px;
    font-weight: 600;
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
}

.tip-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px;
    background: #fff;
    border: 1px solid #e9ecef;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.tip-item:hover {
    border-color: #1890ff;
    box-shadow: 0 2px 8px rgba(24, 144, 255, 0.1);
    transform: translateY(-2px);
}

.tip-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.tip-content strong {
    color: #495057;
    font-size: 13px;
    font-weight: 600;
}

.tip-content span {
    color: #6c757d;
    font-size: 11px;
    line-height: 1.4;
}

.feature-hint {
    font-size: 12px;
    color: #999;
    margin-left: 8px;
}

.preview-info {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #e9ecef;
}

.preview-hint {
    margin-bottom: 10px;
    font-size: 13px;
    color: #495057;
}

.status-info {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 10px;
}

.status-item {
    font-size: 11px;
    padding: 3px 8px;
    background: #f8f9fa;
    border-radius: 12px;
    color: #6c757d;
    border: 1px solid #e9ecef;
}

.recommendation-tip {
    font-size: 12px;
    color: #555;
    margin-top: 8px;
    padding: 8px 12px;
    background: #f0fff4;
    border-left: 3px solid #27ae60;
    border-radius: 4px;
    line-height: 1.4;
}

.recommendation-link {
    color: #27ae60;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.recommendation-link:hover {
    color: #229954;
    text-decoration: underline;
}

/* 响应式调整 */
@media (max-width: 1200px) {
    .invitation-batch-container {
        flex-direction: column;
    }
    
    .invitation-controls {
        width: 100%;
        max-height: 400px;
    }
    
    .invitation-preview {
        height: 500px;
    }
}

@media (max-width: 768px) {
    .invitation-tool {
        display: flex;
        flex-direction: column;
        gap: 18px;
        padding: 12px 14px 24px;
    }

    .layout-top,
    .layout-bottom {
        padding: 18px;
    }

    .status-inline {
        flex-direction: column;
        align-items: flex-end;
        gap: 8px;
    }

    .form-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        gap: 12px;
    }

    .grid.two,
    .grid.three {
        grid-template-columns: 1fr;
    }

    .grid.four {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .preview-body {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .preview-stage,
    .magnifier-panel {
        max-width: none;
        width: 100%;
    }

    .action-row {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .btn {
        width: 100%;
    }
}

@media (max-width: 520px) {
    .status-inline {
        align-items: flex-start;
    }

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