.screen-chart-config-container[data-v-2a639f27]{padding:16px;background:#f5f7fa;min-height:calc(100vh - 104px)}.preview-area .preview-placeholder[data-v-2a639f27]{display:flex;flex-direction:column;align-items:center;justify-content:center;height:360px;background:#fafafa;border-radius:8px;border:1px dashed #dcdfe6}.preview-area .preview-placeholder i[data-v-2a639f27]{font-size:64px;color:#c0c4cc;margin-bottom:12px}.preview-area .preview-placeholder p[data-v-2a639f27]{font-size:14px;color:#606266;margin:0}.preview-area .preview-placeholder .preview-hint[data-v-2a639f27]{font-size:12px;color:#c0c4cc;margin-top:6px}