sankey/src/styles.css

:root {
  --primary-7: #8552a1;
  --primary-6: #9b6bc2;
  --fill-1: #f7f8fa;
  --fill-3: #e5e6eb;
  --fill-4: #c9cdd4;
  --text-1: #ffffff;
  --text-3: #86909c;
  --text-4: #4e5969;
  --danger-3: #fbaca3;
  --font-pingfang: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body,
#app {
  margin: 0;
  min-height: 100%;
}

body {
  background: #f3f4f6;
  color: #1d2129;
  font-family: var(--font-pingfang);
}

.page {
  position: relative;
  width: 100%;
  height: calc(var(--app-vh, 1vh) * 100);
  padding: 16px 16px 10px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.top-bar {
  position: relative;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-bottom: 12px;
  padding: 0 8px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo {
  width: 64px;
  height: 64px;
  border-radius: 16px;
}

.title-logo {
  width: 174px;
  height: auto;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  justify-content: flex-end;
}

.tool-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.theme-trigger {
  position: relative;
}

.tool-label {
  color: #1d2129;
  font-size: 14px;
  white-space: nowrap;
}

.icon-btn {
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 0;
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.icon-btn img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.upload-area {
  min-width: 280px;
  max-width: 420px;
  flex: 1;
  min-height: 38px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  padding: 4px 10px;
  background: var(--fill-1);
  border: 1px solid var(--fill-3);
  cursor: pointer;
  position: relative;
}

.hidden-input {
  display: none;
}

.upload-text {
  color: var(--text-4);
  font-size: 12px;
}

.export-box {
  display: flex;
  gap: 6px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--fill-3);
  border-radius: 8px;
  padding: 2px 8px;
}

.export-main {
  width: 18px;
  height: 34px;
}

.export-item {
  width: 40px;
  height: 40px;
}

.theme-popover {
  position: fixed;
  width: 292px;
  border: 1px solid var(--primary-7);
  border-radius: 24px 24px 0 0;
  background: #fff;
  z-index: 10;
  padding: 8px 8px 10px;
}

.theme-popover::before {
  content: '';
  position: absolute;
  top: -8px;
  left: var(--theme-arrow-left, 50%);
  width: 14px;
  height: 14px;
  background: #fff;
  border-top: 1px solid var(--primary-7);
  border-left: 1px solid var(--primary-7);
  transform: translateX(-50%) rotate(45deg);
}

.theme-header {
  text-align: center;
  color: var(--primary-6);
  font-size: 15px;
  margin-bottom: 6px;
}

.theme-wheel-wrap {
  --theme-row-height: 42px;
  position: relative;
  height: calc(var(--theme-row-height) * 5);
  overflow: hidden;
}

.theme-wheel {
  height: 100%;
  overflow-y: auto;
  padding-block: calc(var(--theme-row-height) * 2);
  margin: 0;
  scrollbar-width: thin;
  scrollbar-color: #d6d8dc #fff;
}

.theme-wheel::-webkit-scrollbar {
  width: 6px;
}

.theme-wheel::-webkit-scrollbar-track {
  background: #fff;
}

.theme-wheel::-webkit-scrollbar-thumb {
  background: #d6d8dc;
  border-radius: 999px;
}

.theme-mask {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 3;
  background: linear-gradient(
    180deg,
    #ffffff 0%,
    rgba(255, 255, 255, 0.74) 20%,
    rgba(255, 255, 255, 0) 35%,
    rgba(255, 255, 255, 0) 65%,
    rgba(255, 255, 255, 0.74) 80%,
    #ffffff 100%
  );
}

.theme-row {
  width: 100%;
  border: 0;
  background: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
  height: 42px;
  padding: 5px 6px;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.theme-row.selected {
  opacity: 1;
}

.theme-row img {
  width: 18px;
  height: 18px;
}

.palette {
  flex: 1;
  display: grid;
  height: 20px;
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}

/* 选中分割线挂在色条本身，滚动时与选中项一起移动，长度与色条完全一致。 */
.theme-row.selected .palette::before,
.theme-row.selected .palette::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  border-top: 1px solid var(--fill-3);
}

.theme-row.selected .palette::before {
  top: 0;
}

.theme-row.selected .palette::after {
  bottom: 0;
}

.palette-cell {
  display: block;
}

.content {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 8px;
  flex: 1;
  min-height: 0;
}

.left-pane {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 0;
}

.panel {
  border: 1px solid #f7dede;
  border-radius: 16px;
  background: #fff;
}

.block-panel {
  padding: 8px 8px 10px;
}

.select-panel {
  flex: 1;
  min-height: 0;
  overflow: auto;
}

.panel-title-svg {
  display: block;
  max-width: 100%;
  height: auto;
}

.panel-title-select {
  width: 189px;
}

.panel-title-preview {
  width: 238px;
}

.panel-title-info {
  width: 186px;
}

.field-block {
  margin-top: 14px;
  position: relative;
}

.field-title-wrap {
  width: 100%;
  border: 0;
  background: transparent;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
  cursor: pointer;
  text-align: left;
}

.field-title-wrap h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 500;
}

.expand-icon {
  width: 20px;
  height: 20px;
}

.column-list {
  position: relative;
  --connector-x: 10px;
  --icon-left: 20px;
  --row-height: 32px;
  --connector-top-offset: -6px;
}

/* 展开后显示分类到列表项的树状连线，严格限制到首尾项中线。 */
.column-list::before {
  content: '';
  position: absolute;
  left: var(--connector-x);
  top: var(--connector-top-offset);
  bottom: calc(var(--row-height) / 2);
  border-left: 1px solid var(--fill-4);
}

.column-row {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  height: 32px;
  padding-bottom: 6px;
  padding-left: var(--icon-left);
}

.column-row::before {
  content: '';
  position: absolute;
  left: var(--connector-x);
  top: calc(50% - 0.5px);
  width: calc(var(--icon-left) - var(--connector-x));
  border-top: 1px solid var(--fill-4);
}

.column-row::after {
  content: '';
  position: absolute;
  left: var(--icon-left);
  right: 0;
  bottom: 0;
  border-top: 1px solid var(--fill-4);
}

.column-icon {
  width: 18px;
  height: 18px;
}

.column-label {
  flex: 1;
  color: var(--text-3);
  font-size: 12px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.select-btn {
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 0;
  width: 16px;
  height: 16px;
}

.select-btn img {
  width: 16px;
  height: 16px;
}

.preview-panel {
  padding: 8px;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.preview-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  min-height: 60px;
  margin-bottom: 8px;
}

.preview-controls {
  display: flex;
  align-items: center;
  gap: 24px;
}

.desktop-only {
  display: inline-flex;
}

.mobile-only {
  display: none;
}

.preview-controls .slider-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  width: 148px;
}

.slider-track-wrap {
  position: relative;
  width: 122px;
  height: 24px;
}

.slider-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.slider-input {
  width: 100%;
  height: 24px;
  margin: 0;
  background: transparent;
  -webkit-appearance: none;
  appearance: none;
}

.slider-input::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(
    to right,
    var(--primary-6) 0,
    var(--primary-6) var(--slider-percent, 0%),
    var(--fill-3) var(--slider-percent, 0%),
    var(--fill-3) 100%
  );
}

.slider-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1px solid var(--fill-3);
  background: #fff;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
  margin-top: -7px;
}

.slider-input::-moz-range-track {
  height: 4px;
  border-radius: 999px;
  background: var(--fill-3);
}

.slider-input::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1px solid var(--fill-3);
  background: #fff;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
}

.slider-input::-moz-range-progress {
  height: 4px;
  border-radius: 999px;
  background: var(--primary-6);
}

.slider-value {
  position: absolute;
  top: -13px;
  transform: translateX(-50%);
  font-size: 10px;
  line-height: 1;
  color: var(--primary-6);
  white-space: nowrap;
  pointer-events: none;
}

.direction-control {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: pointer;
  flex-shrink: 0;
}

.direction-label {
  font-size: 14px;
  font-weight: 600;
  color: #000;
  line-height: 1;
}

.direction-switch {
  display: inline-flex;
  align-items: center;
  gap: 1px;
  min-width: 0;
  width: auto;
  height: 14px;
  padding: 1px;
  border-radius: 58.333px;
  background: var(--fill-3);
  justify-content: space-between;
}

.direction-switch-text {
  font-size: 8px;
  line-height: 1;
  padding: 0 1px;
  white-space: nowrap;
  color: var(--text-4);
}

.direction-switch-thumb {
  width: 11.667px;
  height: 11.667px;
  border-radius: 50%;
  background: #fff;
  border: 0;
  box-shadow: none;
}

.direction-switch.on {
  background: var(--primary-6);
}

.direction-switch.on .direction-switch-text {
  color: #fff;
}

.direction-switch:not(.on) {
  flex-direction: row-reverse;
}

.label-position-control {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.label-position-label {
  font-size: 14px;
  font-weight: 600;
  color: #000;
  line-height: 1;
  white-space: nowrap;
}

.label-position-select {
  min-width: 0;
}

.target-align-control {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.target-align-label {
  font-size: 14px;
  font-weight: 600;
  color: #000;
  line-height: 1;
  white-space: nowrap;
}

.target-align-select {
  min-width: 0;
}

.compact-control {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.compact-label {
  font-size: 12px;
  font-weight: 600;
  color: #000;
  line-height: 1;
  white-space: nowrap;
}

.compact-select {
  min-width: 0;
}

.label-position-select,
.target-align-select,
.compact-select {
  width: auto;
  inline-size: max-content;
  height: 14px;
  border: 0.5px solid #c9aee0;
  border-radius: 4px;
  background: #fff;
  color: #1d2129;
  font-size: 12px;
  line-height: 1;
  padding: 0 14px 0 4px;
  appearance: none;
  -webkit-appearance: none;
  background-image: url('../assets/icons/list.svg');
  background-repeat: no-repeat;
  background-position: right 2px center;
  background-size: 10px 8px;
  flex-shrink: 0;
}

.example-line {
  margin: 4px 0 8px;
  color: var(--text-4);
  font-size: 12px;
}

.chart-area {
  background: var(--fill-1);
  border-radius: 8px;
  flex: 1;
  min-height: 0;
}

.info-panel {
  padding: 8px;
  min-height: 120px;
  max-height: 220px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow: hidden;
}

.info-log-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow: auto;
}

.info-log-item {
  font-size: 12px;
  line-height: 1.45;
  color: var(--text-4);
}

.info-log-item.level-warn {
  color: #8d5b00;
}

.info-log-item.level-error {
  color: #cb272d;
}

.info-log-empty {
  margin: 0;
  font-size: 12px;
  color: var(--text-3);
}

.footer {
  margin-top: 6px;
  flex-shrink: 0;
  color: var(--text-3);
  font-size: 16px;
}

@media (max-width: 1024px) {
  .top-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .toolbar {
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    gap: 8px;
    scrollbar-width: none;
  }

  .toolbar::-webkit-scrollbar {
    display: none;
  }

  .tool-item,
  .export-box,
  .upload-area {
    flex-shrink: 0;
  }

  .content {
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }

  .preview-panel {
    order: 1;
    flex: 1;
    min-height: 0;
  }

  .left-pane {
    order: 2;
    min-height: 0;
    max-height: 42%;
    overflow: auto;
  }

  .block-panel {
    min-height: auto;
  }

  .chart-area {
    min-height: 0;
  }

  .preview-head {
    min-height: auto;
    align-items: center;
    flex-direction: row;
    gap: 8px;
  }

  .preview-controls {
    flex-wrap: nowrap;
    gap: 8px;
    overflow-x: auto;
    overflow-y: hidden;
    justify-content: flex-start;
    scrollbar-width: none;
  }

  .preview-controls::-webkit-scrollbar {
    display: none;
  }

  .preview-controls .slider-label {
    width: 120px;
  }

  .slider-track-wrap {
    width: 96px;
  }

  .label-position-control {
    margin-left: 0;
    flex-shrink: 0;
  }

  .target-align-control {
    margin-left: 0;
    flex-shrink: 0;
  }

  .info-panel {
    max-height: 180px;
  }

  .footer {
    font-size: 14px;
  }
}

@media (max-width: 640px) {
  .page {
    padding: 8px;
  }

  .logo {
    width: 48px;
    height: 48px;
    border-radius: 12px;
  }

  .title-logo {
    width: 160px;
  }

  .tool-label {
    font-size: 12px;
  }

  .upload-area {
    display: flex;
    min-width: 92px;
    max-width: none;
    flex: 1 1 auto;
    min-height: 28px;
    padding: 2px 5px;
  }

  .upload-text {
    font-size: 10px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .top-bar {
    padding: 0;
    gap: 6px;
  }

  .toolbar {
    width: 100%;
    flex-wrap: nowrap;
    overflow: hidden;
    justify-content: flex-start;
    gap: 4px;
  }

  .tool-item .tool-label {
    display: none;
  }

  .tool-item,
  .export-box {
    flex-shrink: 0;
  }

  .tool-item .icon-btn {
    width: 28px;
    height: 28px;
  }

  .export-box {
    padding: 1px 4px;
    gap: 4px;
  }

  .export-main {
    display: block;
    width: 12px;
    height: 24px;
  }

  .export-item {
    width: 28px;
    height: 28px;
  }

  .content {
    gap: 6px;
  }

  .left-pane {
    max-height: 46%;
  }

  .field-title-wrap h3 {
    font-size: 16px;
  }

  .panel-title-preview {
    width: 190px;
  }

  .preview-head {
    gap: 4px;
  }

  .preview-controls {
    width: 100%;
    flex-wrap: nowrap;
    gap: 4px;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: none;
    justify-content: flex-start;
  }

  .preview-controls::-webkit-scrollbar {
    display: none;
  }

  .desktop-only {
    display: none;
  }

  .mobile-only {
    display: inline-flex;
  }

  .preview-controls .slider-label {
    width: 74px;
  }

  .slider-track-wrap {
    width: 61px;
  }

  .label-position-control,
  .target-align-control {
    gap: 4px;
    flex-shrink: 0;
  }

  .label-position-label,
  .target-align-label {
    font-size: 12px;
  }

  .label-position-select {
    min-width: 0;
    font-size: 12px;
    padding: 0 14px 0 4px;
  }

  .target-align-select {
    min-width: 0;
    font-size: 12px;
    padding: 0 14px 0 4px;
  }

  .direction-control {
    flex-shrink: 0;
  }
}