diff --git a/src/App.vue b/src/App.vue
index 16bd73f..a045ba9 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -7,24 +7,33 @@
       </div>
 
         <div class="toolbar">
-        <div class="tool-item theme-trigger">
+        <div ref="themeTriggerRef" class="tool-item theme-trigger">
           <span class="tool-label">选择主题</span>
-          <button class="icon-btn" type="button" @click="toggleThemePicker">
+          <button class="icon-btn" type="button" @click.stop="toggleThemePicker">
             <img :src="iconChooseColor" alt="choose-color" />
           </button>
 
-          <div v-if="showThemePicker" class="theme-popover">
+          <div
+            v-if="showThemePicker"
+            ref="themePopoverRef"
+            class="theme-popover"
+            :style="themePopoverStyle"
+            @click.stop
+          >
             <div class="theme-header">选择配色主题</div>
-            <div class="theme-list">
+            <div class="theme-wheel-wrap">
+              <div ref="themeWheelRef" class="theme-wheel" @scroll="onThemeWheelScroll">
               <button
-                v-for="theme in themes"
+                  v-for="(theme, index) in themes"
                 :key="theme.id"
                 class="theme-row"
+                  :class="{ selected: selectedThemeId === theme.id }"
+                  :style="{ opacity: getThemeRowOpacity(index) }"
                 type="button"
                 @click="pickTheme(theme.id)"
               >
-                <img :src="selectedThemeId === theme.id ? iconRadioOn : iconRadioOff" alt="主题选择" />
-                <div class="palette">
+                  <img :src="selectedThemeId === theme.id ? iconRadioOn : iconRadioOff" alt="主题选择" />
+                <div class="palette" :style="{ gridTemplateColumns: `repeat(${theme.colors.length}, 1fr)` }">
                   <span
                     v-for="color in theme.colors"
                     :key="`${theme.id}-${color}`"
@@ -34,6 +43,8 @@
                 </div>
               </button>
             </div>
+              <div class="theme-mask" />
+            </div>
           </div>
         </div>
 
@@ -80,76 +91,100 @@
           <h2>源数据</h2>
 
           <div class="field-block">
-            <div class="field-title-wrap">
-              <img :src="iconExpand" alt="展开" class="expand-icon" />
+            <button class="field-title-wrap" type="button" @click="toggleSection('sourceData')">
+              <img
+                :src="sectionVisible.sourceData ? iconZhedie : iconExpand"
+                :alt="sectionVisible.sourceData ? '折叠' : '展开'"
+                class="expand-icon"
+              />
               <h3>数据列</h3>
-            </div>
+            </button>
 
-            <div
-              v-for="(header, index) in columnHeaders"
-              :key="`source-data-${index}`"
-              class="column-row"
-            >
-              <img :src="iconData" alt="数据列" class="column-icon" />
-              <span class="column-label">{{ header }}</span>
-              <button class="select-btn" type="button" @click="mapping.sourceDataColumn = index">
-                <img
-                  :src="mapping.sourceDataColumn === index ? iconRadioOn : iconRadioOff"
-                  alt="单选"
-                />
-              </button>
-            </div>
+            <template v-if="sectionVisible.sourceData">
+              <div class="column-list">
+                <div
+                  v-for="(header, index) in columnHeaders"
+                  :key="`source-data-${index}`"
+                  class="column-row"
+                >
+                  <img :src="iconData" alt="数据列" class="column-icon" />
+                  <span class="column-label">{{ header }}</span>
+                  <button class="select-btn" type="button" @click="mapping.sourceDataColumn = index">
+                    <img
+                      :src="mapping.sourceDataColumn === index ? iconRadioOn : iconRadioOff"
+                      alt="单选"
+                    />
+                  </button>
+                </div>
+              </div>
+            </template>
           </div>
 
           <div class="field-block">
-            <div class="field-title-wrap">
-              <img :src="iconExpand" alt="展开" class="expand-icon" />
+            <button class="field-title-wrap" type="button" @click="toggleSection('sourceDesc')">
+              <img
+                :src="sectionVisible.sourceDesc ? iconZhedie : iconExpand"
+                :alt="sectionVisible.sourceDesc ? '折叠' : '展开'"
+                class="expand-icon"
+              />
               <h3>描述列</h3>
-            </div>
+            </button>
 
-            <div
-              v-for="(header, index) in columnHeaders"
-              :key="`source-desc-${index}`"
-              class="column-row"
-            >
-              <img :src="iconDescription" alt="描述列" class="column-icon" />
-              <span class="column-label">{{ header }}</span>
-              <button class="select-btn" type="button" @click="toggleSourceDescription(index)">
-                <img
-                  :src="
-                    mapping.sourceDescriptionColumns.includes(index) ? iconCheckboxOn : iconCheckboxOff
-                  "
-                  alt="复选"
-                />
-              </button>
-            </div>
+            <template v-if="sectionVisible.sourceDesc">
+              <div class="column-list">
+                <div
+                  v-for="(header, index) in columnHeaders"
+                  :key="`source-desc-${index}`"
+                  class="column-row"
+                >
+                  <img :src="iconDescription" alt="描述列" class="column-icon" />
+                  <span class="column-label">{{ header }}</span>
+                  <button class="select-btn" type="button" @click="toggleSourceDescription(index)">
+                    <img
+                      :src="
+                        mapping.sourceDescriptionColumns.includes(index) ? iconCheckboxOn : iconCheckboxOff
+                      "
+                      alt="复选"
+                    />
+                  </button>
+                </div>
+              </div>
+            </template>
           </div>
         </article>
 
         <article class="panel block-panel">
           <h2>目标数据</h2>
           <div class="field-block">
-            <div class="field-title-wrap">
-              <img :src="iconExpand" alt="展开" class="expand-icon" />
+            <button class="field-title-wrap" type="button" @click="toggleSection('targetDesc')">
+              <img
+                :src="sectionVisible.targetDesc ? iconZhedie : iconExpand"
+                :alt="sectionVisible.targetDesc ? '折叠' : '展开'"
+                class="expand-icon"
+              />
               <h3>描述列</h3>
-            </div>
+            </button>
 
-            <div
-              v-for="(header, index) in columnHeaders"
-              :key="`target-desc-${index}`"
-              class="column-row"
-            >
-              <img :src="iconDescription" alt="描述列" class="column-icon" />
-              <span class="column-label">{{ header }}</span>
-              <button class="select-btn" type="button" @click="toggleTargetDescription(index)">
-                <img
-                  :src="
-                    mapping.targetDescriptionColumns.includes(index) ? iconCheckboxOn : iconCheckboxOff
-                  "
-                  alt="复选"
-                />
-              </button>
-            </div>
+            <template v-if="sectionVisible.targetDesc">
+              <div class="column-list">
+                <div
+                  v-for="(header, index) in columnHeaders"
+                  :key="`target-desc-${index}`"
+                  class="column-row"
+                >
+                  <img :src="iconDescription" alt="描述列" class="column-icon" />
+                  <span class="column-label">{{ header }}</span>
+                  <button class="select-btn" type="button" @click="toggleTargetDescription(index)">
+                    <img
+                      :src="
+                        mapping.targetDescriptionColumns.includes(index) ? iconCheckboxOn : iconCheckboxOff
+                      "
+                      alt="复选"
+                    />
+                  </button>
+                </div>
+              </div>
+            </template>
           </div>
         </article>
       </section>
@@ -166,13 +201,35 @@
                 <option value="target-to-source">target -&gt; source</option>
               </select>
             </label>
-            <label>
+            <label class="slider-label">
               间距
-              <input v-model.number="nodeGap" type="range" min="8" max="42" />
+              <div class="slider-track-wrap">
+                <span class="slider-value" :style="getSliderValueStyle(nodeGap, 8, 42)">{{ nodeGap }}</span>
+                <input
+                  v-model.number="nodeGap"
+                  class="slider-input"
+                  :style="getSliderTrackStyle(nodeGap, 8, 42)"
+                  type="range"
+                  min="8"
+                  max="42"
+                />
+              </div>
             </label>
-            <label>
+            <label class="slider-label">
               边距
-              <input v-model.number="chartPadding" type="range" min="10" max="70" />
+              <div class="slider-track-wrap">
+                <span class="slider-value" :style="getSliderValueStyle(chartPadding, 10, 70)">
+                  {{ chartPadding }}
+                </span>
+                <input
+                  v-model.number="chartPadding"
+                  class="slider-input"
+                  :style="getSliderTrackStyle(chartPadding, 10, 70)"
+                  type="range"
+                  min="10"
+                  max="70"
+                />
+              </div>
             </label>
           </div>
         </div>
@@ -180,8 +237,6 @@
         <div v-if="buildError" class="error-text">{{ buildError }}</div>
         <div v-if="parseError" class="error-text">{{ parseError }}</div>
 
-        <div class="example-line">示例：{{ previewExample }}</div>
-
         <div ref="chartRef" class="chart-area" />
 
         <div v-if="buildWarnings.length > 0" class="warning-area">
@@ -198,7 +253,7 @@
 </template>
 
 <script setup lang="ts">
-import { computed, onBeforeUnmount, onMounted, reactive, ref, watch, watchEffect } from 'vue';
+import { computed, nextTick, onBeforeUnmount, onMounted, reactive, ref, watch, watchEffect, type CSSProperties } from 'vue';
 import * as echarts from 'echarts/core';
 import type { EChartsOption } from 'echarts';
 import { SankeyChart } from 'echarts/charts';
@@ -208,10 +263,12 @@ import {
   applyDirection,
   buildSankeyData,
   parseDataFile,
+  parseXlsxBuffer,
   type MappingConfig,
   type RawTable,
   type SankeyBuildResult
 } from './core';
+import { THEME_PRESETS } from './theme-presets';
 import iconWebLogo from '../assets/icons/webicon.png';
 import iconTitle from '../assets/icons/星程桑基图.svg';
 import iconChooseColor from '../assets/icons/choose-color.svg';
@@ -226,33 +283,12 @@ import iconRadioOff from '../assets/icons/radiobutton-no.svg';
 import iconCheckboxOn from '../assets/icons/checkbox.svg';
 import iconCheckboxOff from '../assets/icons/checkbox-no.svg';
 import iconExpand from '../assets/icons/expand.svg';
+import iconZhedie from '../assets/icons/zhedie.svg';
 
 echarts.use([SankeyChart, TooltipComponent, CanvasRenderer]);
 
-/**
- * 主题色板列表。
- * 颜色来自 Figma 示例，保证与设计稿观感一致。
- */
-const themes = [
-  {
-    id: 'morandi',
-    colors: ['#F4F1DE', '#EAB69F', '#E07A5F', '#8F5D5D', '#3D405B', '#5F797B', '#81B29A', '#9EB998']
-  },
-  {
-    id: 'purple',
-    colors: ['#F72585', '#B5179E', '#7209B7', '#560BAD', '#480CA8', '#3A0CA3', '#3F37C9', '#4895EF', '#4CC9F0']
-  },
-  {
-    id: 'fog',
-    colors: ['#E8EDDF', '#CFDBD5', '#B7B7A4', '#A5A58D', '#6B705C', '#4F5D75', '#5D576B', '#6D597A']
-  },
-  {
-    id: 'sunset',
-    colors: ['#355070', '#515575', '#6D597A', '#915F78', '#B56576', '#CD6873', '#E56B6F', '#E88C7D', '#EAAC8B']
-  }
-] as const;
-
-const selectedThemeId = ref<(typeof themes)[number]['id']>('purple');
+const themes = THEME_PRESETS;
+const selectedThemeId = ref<string>('figma-violet');
 const showThemePicker = ref(false);
 const uploadMessage = ref('点击上传或将csv/xls文件拖到这里上传');
 const parseError = ref('');
@@ -260,7 +296,14 @@ const buildError = ref('');
 
 const chartRef = ref<HTMLDivElement | null>(null);
 const fileInputRef = ref<HTMLInputElement | null>(null);
+const themeWheelRef = ref<HTMLDivElement | null>(null);
+const themeTriggerRef = ref<HTMLDivElement | null>(null);
+const themePopoverRef = ref<HTMLDivElement | null>(null);
 let chartInstance: echarts.EChartsType | null = null;
+let themeWheelRafId = 0;
+const themePopoverStyle = ref<CSSProperties>({});
+
+const THEME_ROW_HEIGHT = 42;
 
 const rawTable = ref<RawTable | null>(null);
 const buildResult = ref<SankeyBuildResult | null>(null);
@@ -275,8 +318,22 @@ const mapping = reactive<MappingConfig>({
 const direction = ref<'source-to-target' | 'target-to-source'>('source-to-target');
 const nodeGap = ref(24);
 const chartPadding = ref(30);
+/**
+ * 左侧字段区块的展开/折叠状态。
+ * true 表示展开，false 表示折叠。
+ */
+const sectionVisible = reactive({
+  sourceData: true,
+  sourceDesc: true,
+  targetDesc: true
+});
 
-const selectedTheme = computed(() => themes.find((item) => item.id === selectedThemeId.value) ?? themes[0]);
+const selectedThemeIndex = computed(() => {
+  const index = themes.findIndex((item) => item.id === selectedThemeId.value);
+  return index >= 0 ? index : 0;
+});
+
+const selectedTheme = computed(() => themes[selectedThemeIndex.value] ?? themes[0]);
 
 const columnHeaders = computed(() => {
   const headers = rawTable.value?.headers ?? [];
@@ -289,25 +346,6 @@ const columnHeaders = computed(() => {
 
 const buildWarnings = computed(() => buildResult.value?.meta.warnings.slice(0, 8) ?? []);
 
-const previewExample = computed(() => {
-  const table = rawTable.value;
-  if (!table || table.rows.length === 0) {
-    return '宁波北欧10-2582 -> 嘉兴四级算力池-11623-小模型';
-  }
-
-  const firstRow = table.rows[0];
-  const sourceParts =
-    mapping.sourceDescriptionColumns.length > 0
-      ? mapping.sourceDescriptionColumns.map((column) => firstRow[column] ?? '').filter(Boolean)
-      : [firstRow[mapping.sourceDataColumn ?? 0] ?? ''];
-
-  const targetParts = mapping.targetDescriptionColumns
-    .map((column) => firstRow[column] ?? '')
-    .filter(Boolean);
-
-  return `${sourceParts.join(mapping.delimiter)} -> ${targetParts.join(mapping.delimiter)}`;
-});
-
 const chartNodes = computed(() => {
   const links = buildResult.value ? applyDirection(buildResult.value.links, direction.value) : [];
   const names = new Set<string>();
@@ -423,14 +461,158 @@ function closeThemePicker(): void {
 }
 
 function toggleThemePicker(): void {
-  showThemePicker.value = !showThemePicker.value;
+  const nextVisible = !showThemePicker.value;
+  showThemePicker.value = nextVisible;
+
+  if (nextVisible) {
+    void nextTick(() => {
+      updateThemePopoverPosition();
+      centerThemeByIndex(selectedThemeIndex.value, false);
+    });
+  }
 }
 
-function pickTheme(themeId: (typeof themes)[number]['id']): void {
+function pickTheme(themeId: string): void {
   selectedThemeId.value = themeId;
   showThemePicker.value = false;
 }
 
+/**
+ * 点击弹窗外部时关闭主题窗口，保持和设计稿一致的关闭行为。
+ */
+function handleGlobalPointerDown(event: PointerEvent): void {
+  if (!showThemePicker.value) {
+    return;
+  }
+
+  const target = event.target as Node | null;
+  if (!target) {
+    return;
+  }
+
+  const popover = themePopoverRef.value;
+  const trigger = themeTriggerRef.value;
+  if (popover?.contains(target) || trigger?.contains(target)) {
+    return;
+  }
+
+  showThemePicker.value = false;
+}
+
+/**
+ * 配色滚轮滚动时，自动将“可视中心行”设为选中项。
+ */
+function onThemeWheelScroll(): void {
+  if (themeWheelRafId !== 0) {
+    cancelAnimationFrame(themeWheelRafId);
+  }
+
+  themeWheelRafId = requestAnimationFrame(() => {
+    const container = themeWheelRef.value;
+    if (!container) {
+      return;
+    }
+
+    const centerIndex = Math.round(container.scrollTop / THEME_ROW_HEIGHT);
+    const safeIndex = Math.max(0, Math.min(themes.length - 1, centerIndex));
+    selectedThemeId.value = themes[safeIndex]?.id ?? selectedThemeId.value;
+  });
+}
+
+/**
+ * 让指定主题滚动到中间行，匹配 Figma 选择器交互。
+ */
+function centerThemeByIndex(index: number, smooth: boolean): void {
+  const container = themeWheelRef.value;
+  if (!container) {
+    return;
+  }
+
+  const targetTop = index * THEME_ROW_HEIGHT;
+  const maxTop = Math.max(0, container.scrollHeight - container.clientHeight);
+  const safeTop = Math.max(0, Math.min(maxTop, targetTop));
+
+  container.scrollTo({
+    top: safeTop,
+    behavior: smooth ? 'smooth' : 'auto'
+  });
+}
+
+/**
+ * 主题弹窗使用 fixed 定位并在视口内钳制，避免窄窗口时被裁切。
+ * 同时动态设置顶部箭头位置，确保箭头对准主题按钮中心。
+ */
+function updateThemePopoverPosition(): void {
+  if (!showThemePicker.value) {
+    return;
+  }
+
+  const trigger = themeTriggerRef.value;
+  const popover = themePopoverRef.value;
+  if (!trigger || !popover) {
+    return;
+  }
+
+  const triggerRect = trigger.getBoundingClientRect();
+  const popoverWidth = popover.offsetWidth || 292;
+  const viewportWidth = window.innerWidth;
+  const safePadding = 8;
+
+  let left = triggerRect.left + triggerRect.width / 2 - popoverWidth / 2;
+  left = Math.max(safePadding, Math.min(viewportWidth - popoverWidth - safePadding, left));
+
+  const top = triggerRect.bottom + 8;
+  const triggerCenterX = triggerRect.left + triggerRect.width / 2;
+  const arrowLeft = Math.max(20, Math.min(popoverWidth - 20, triggerCenterX - left));
+
+  themePopoverStyle.value = {
+    left: `${left}px`,
+    top: `${top}px`,
+    '--theme-arrow-left': `${arrowLeft}px`
+  };
+}
+
+/**
+ * 选中项不透明度为 100%，其它项随着距离中心递减。
+ */
+function getThemeRowOpacity(index: number): number {
+  const distance = Math.abs(index - selectedThemeIndex.value);
+  if (distance === 0) {
+    return 1;
+  }
+  if (distance === 1) {
+    return 0.75;
+  }
+  if (distance === 2) {
+    return 0.5;
+  }
+  return 0.3;
+}
+
+/**
+ * 计算滑块上方数字气泡位置，让数字随滑块移动。
+ */
+function getSliderValueStyle(value: number, min: number, max: number): CSSProperties {
+  const range = Math.max(1, max - min);
+  const ratio = Math.max(0, Math.min(1, (value - min) / range));
+  const thumbWidth = 18;
+  const offset = (0.5 - ratio) * thumbWidth;
+  return {
+    left: `calc(${ratio * 100}% + ${offset}px)`
+  };
+}
+
+/**
+ * 生成滑条左右双色背景：左侧主色，右侧灰色。
+ */
+function getSliderTrackStyle(value: number, min: number, max: number): CSSProperties {
+  const range = Math.max(1, max - min);
+  const ratio = Math.max(0, Math.min(1, (value - min) / range));
+  return {
+    '--slider-percent': `${ratio * 100}%`
+  };
+}
+
 function toggleSourceDescription(column: number): void {
   if (mapping.sourceDescriptionColumns.includes(column)) {
     mapping.sourceDescriptionColumns = mapping.sourceDescriptionColumns.filter((item) => item !== column);
@@ -440,6 +622,13 @@ function toggleSourceDescription(column: number): void {
   mapping.sourceDescriptionColumns = [...mapping.sourceDescriptionColumns, column].sort((a, b) => a - b);
 }
 
+/**
+ * 切换左侧区块展开状态，支持源数据、源描述、目标描述。
+ */
+function toggleSection(section: keyof typeof sectionVisible): void {
+  sectionVisible[section] = !sectionVisible[section];
+}
+
 function toggleTargetDescription(column: number): void {
   if (mapping.targetDescriptionColumns.includes(column)) {
     mapping.targetDescriptionColumns = mapping.targetDescriptionColumns.filter((item) => item !== column);
@@ -502,6 +691,31 @@ async function onDropFile(event: DragEvent): Promise<void> {
   await loadDataFile(file);
 }
 
+/**
+ * 页面首次进入时默认加载示例文件，确保用户无需上传即可看到效果。
+ */
+async function loadDefaultExampleFile(): Promise<void> {
+  if (rawTable.value) {
+    return;
+  }
+
+  try {
+    const response = await fetch('/data/example0.xlsx', { cache: 'no-store' });
+    if (!response.ok) {
+      throw new Error(`示例文件加载失败: HTTP ${response.status}`);
+    }
+
+    const buffer = await response.arrayBuffer();
+    const parsed = parseXlsxBuffer(buffer);
+    rawTable.value = parsed;
+    setDefaultMappingByColumns(parsed.headers.length);
+    uploadMessage.value = `已加载: example0.xlsx（${parsed.rows.length} 行）`;
+    parseError.value = '';
+  } catch (error) {
+    parseError.value = error instanceof Error ? error.message : '示例文件加载失败';
+  }
+}
+
 function formatFileTimestamp(): string {
   const now = new Date();
   const pad = (value: number) => String(value).padStart(2, '0');
@@ -563,12 +777,23 @@ onMounted(() => {
 
   chartInstance = echarts.init(container, undefined, { renderer: 'canvas' });
   chartInstance.setOption(chartOption.value);
+  void loadDefaultExampleFile();
   window.addEventListener('resize', syncChartSize);
+  window.addEventListener('resize', updateThemePopoverPosition);
+  window.addEventListener('scroll', updateThemePopoverPosition, true);
+  window.addEventListener('pointerdown', handleGlobalPointerDown);
 });
 
 onBeforeUnmount(() => {
   window.removeEventListener('resize', syncChartSize);
+  window.removeEventListener('resize', updateThemePopoverPosition);
+  window.removeEventListener('scroll', updateThemePopoverPosition, true);
+  window.removeEventListener('pointerdown', handleGlobalPointerDown);
   chartInstance?.dispose();
   chartInstance = null;
+  if (themeWheelRafId !== 0) {
+    cancelAnimationFrame(themeWheelRafId);
+    themeWheelRafId = 0;
+  }
 });
 </script>
diff --git a/src/styles.css b/src/styles.css
index de32211..38db517 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -149,23 +149,20 @@ body {
 }
 
 .theme-popover {
-  position: absolute;
-  top: calc(100% + 8px);
-  left: 50%;
-  transform: translateX(-50%);
-  width: 280px;
+  position: fixed;
+  width: 292px;
   border: 1px solid var(--primary-7);
   border-radius: 24px 24px 0 0;
   background: #fff;
   z-index: 10;
-  padding: 8px;
+  padding: 8px 8px 10px;
 }
 
 .theme-popover::before {
   content: '';
   position: absolute;
   top: -8px;
-  left: 50%;
+  left: var(--theme-arrow-left, 50%);
   width: 14px;
   height: 14px;
   background: #fff;
@@ -177,13 +174,53 @@ body {
 .theme-header {
   text-align: center;
   color: var(--primary-6);
-  font-size: 14px;
-  margin-bottom: 8px;
+  font-size: 15px;
+  margin-bottom: 6px;
 }
 
-.theme-list {
-  max-height: 180px;
-  overflow: auto;
+.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 {
@@ -193,8 +230,14 @@ body {
   display: flex;
   align-items: center;
   gap: 8px;
-  padding: 6px;
+  height: 42px;
+  padding: 5px 6px;
   cursor: pointer;
+  transition: opacity 0.2s ease;
+}
+
+.theme-row.selected {
+  opacity: 1;
 }
 
 .theme-row img {
@@ -205,8 +248,28 @@ body {
 .palette {
   flex: 1;
   display: grid;
-  grid-template-columns: repeat(9, 1fr);
   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 {
@@ -245,13 +308,20 @@ body {
 
 .field-block {
   margin-top: 12px;
+  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 {
@@ -261,17 +331,54 @@ body {
 }
 
 .expand-icon {
-  width: 16px;
-  height: 16px;
+  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;
-  border-bottom: 1px solid var(--fill-4);
   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 {
@@ -330,8 +437,82 @@ body {
   font-size: 12px;
 }
 
-.preview-controls select,
-.preview-controls input {
+.preview-controls .slider-label {
+  align-items: center;
+  color: #000;
+  font-size: 14px;
+}
+
+.slider-track-wrap {
+  position: relative;
+  width: 130px;
+  height: 18px;
+}
+
+.slider-input {
+  width: 100%;
+  height: 18px;
+  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,
+    #8552a1 0,
+    #8552a1 var(--slider-percent, 0%),
+    #d9d9d9 var(--slider-percent, 0%),
+    #d9d9d9 100%
+  );
+}
+
+.slider-input::-webkit-slider-thumb {
+  -webkit-appearance: none;
+  appearance: none;
+  width: 18px;
+  height: 18px;
+  border-radius: 50%;
+  border: 1px solid #d9d9d9;
+  background: #fff;
+  margin-top: -7px;
+}
+
+.slider-input::-moz-range-track {
+  height: 4px;
+  border-radius: 999px;
+  background: #d9d9d9;
+}
+
+.slider-input::-moz-range-thumb {
+  width: 18px;
+  height: 18px;
+  border-radius: 50%;
+  border: 1px solid #d9d9d9;
+  background: #fff;
+}
+
+.slider-input::-moz-range-progress {
+  height: 4px;
+  border-radius: 999px;
+  background: #8552a1;
+}
+
+.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;
+}
+
+.preview-controls select {
   accent-color: var(--primary-7);
 }
 
diff --git a/src/theme-presets.ts b/src/theme-presets.ts
new file mode 100644
index 0000000..47d7460
--- /dev/null
+++ b/src/theme-presets.ts
@@ -0,0 +1,787 @@
+/**
+ * Figma 节点 3267:86 的全部配色预设。
+ * 每组颜色按设计稿色带从左到右排列。
+ */
+export interface ThemePreset {
+  id: string;
+  name: string;
+  colors: string[];
+}
+
+export const THEME_PRESETS: ThemePreset[] = [
+  {
+    "id": "figma-aegean",
+    "name": "Figma-Aegean",
+    "colors": [
+      "#264653",
+      "#287271",
+      "#2A9D8F",
+      "#8AB17D",
+      "#E9C46A",
+      "#EFB366",
+      "#F4A261",
+      "#F1965D",
+      "#EE8959",
+      "#E76F51"
+    ]
+  },
+  {
+    "id": "figma-violet",
+    "name": "Figma-Violet",
+    "colors": [
+      "#F72585",
+      "#B5179E",
+      "#7209B7",
+      "#560BAD",
+      "#480CA8",
+      "#3A0CA3",
+      "#3F37C9",
+      "#4361EE",
+      "#4895EF",
+      "#4CC9F0"
+    ]
+  },
+  {
+    "id": "figma-1",
+    "name": "Figma-01",
+    "colors": [
+      "#322F4F",
+      "#433E71",
+      "#554C93",
+      "#98958C",
+      "#DBDD85",
+      "#D8DD7D",
+      "#D5DB74",
+      "#CED56E",
+      "#C8CF67",
+      "#BAC35A"
+    ]
+  },
+  {
+    "id": "figma-2",
+    "name": "Figma-02",
+    "colors": [
+      "#2B3B51",
+      "#355971",
+      "#3F7690",
+      "#91A483",
+      "#E2D075",
+      "#E4C66F",
+      "#E4BD69",
+      "#E0B464",
+      "#DBAA5F",
+      "#D19654"
+    ]
+  },
+  {
+    "id": "figma-3",
+    "name": "Figma-03",
+    "colors": [
+      "#274D4C",
+      "#2B7171",
+      "#2F9595",
+      "#8B9395",
+      "#E79094",
+      "#EC878A",
+      "#EF7D7F",
+      "#EC7578",
+      "#E86D6F",
+      "#E15D5F"
+    ]
+  },
+  {
+    "id": "figma-4",
+    "name": "Figma-04",
+    "colors": [
+      "#3D3D3D",
+      "#5B5B5B",
+      "#797979",
+      "#9F9F9F",
+      "#C4C4C4",
+      "#BCBCBC",
+      "#B3B3B3",
+      "#AAAAAA",
+      "#A1A1A1",
+      "#8F8F8F"
+    ]
+  },
+  {
+    "id": "figma-5",
+    "name": "Figma-05",
+    "colors": [
+      "#F4F1DE",
+      "#EAB69F",
+      "#E07A5F",
+      "#8F5D5D",
+      "#3D405B",
+      "#5F797B",
+      "#81B29A",
+      "#9EB998",
+      "#BABF95",
+      "#F2CC8F"
+    ]
+  },
+  {
+    "id": "figma-6",
+    "name": "Figma-06",
+    "colors": [
+      "#F2F3E3",
+      "#D6DAA5",
+      "#B9C167",
+      "#7C805D",
+      "#3E3D52",
+      "#68667A",
+      "#938FA1",
+      "#A8A6A1",
+      "#BBBBA1",
+      "#E3E6A1"
+    ]
+  },
+  {
+    "id": "figma-7",
+    "name": "Figma-07",
+    "colors": [
+      "#F3F1E0",
+      "#E0C7A1",
+      "#CD9B62",
+      "#856D5D",
+      "#3D3F57",
+      "#63707A",
+      "#89A19D",
+      "#A2B09C",
+      "#BABD9A",
+      "#EBD896"
+    ]
+  },
+  {
+    "id": "figma-8",
+    "name": "Figma-08",
+    "colors": [
+      "#F3E6E7",
+      "#E7A8A9",
+      "#DA6A6B",
+      "#8C5D5D",
+      "#3D4F4E",
+      "#607A7A",
+      "#83A4A5",
+      "#9FA6A7",
+      "#BAA7A8",
+      "#F0A9AB"
+    ]
+  },
+  {
+    "id": "figma-9",
+    "name": "Figma-09",
+    "colors": [
+      "#EFEFEF",
+      "#C2C2C2",
+      "#959595",
+      "#6B6B6B",
+      "#424242",
+      "#717171",
+      "#A0A0A0",
+      "#ADADAD",
+      "#B8B8B8",
+      "#D0D0D0"
+    ]
+  },
+  {
+    "id": "figma-10",
+    "name": "Figma-10",
+    "colors": [
+      "#A8B868",
+      "#798575",
+      "#4A5282",
+      "#393F7C",
+      "#313679",
+      "#282C75",
+      "#3C3C9D",
+      "#4E4CC3",
+      "#645FD4",
+      "#7A71E4"
+    ]
+  },
+  {
+    "id": "figma-11",
+    "name": "Figma-11",
+    "colors": [
+      "#EF476F",
+      "#F78C6B",
+      "#FFD166",
+      "#83D483",
+      "#06D6A0",
+      "#001914",
+      "#118AB2",
+      "#0F7799",
+      "#0C637F",
+      "#073B4C"
+    ]
+  },
+  {
+    "id": "figma-12",
+    "name": "Figma-12",
+    "colors": [
+      "#D06A79",
+      "#984B8D",
+      "#5E2BA1",
+      "#482398",
+      "#3D1F94",
+      "#311B90",
+      "#3D39B6",
+      "#4857DC",
+      "#567BE3",
+      "#629FEB"
+    ]
+  },
+  {
+    "id": "figma-13",
+    "name": "Figma-13",
+    "colors": [
+      "#B0BC63",
+      "#CED674",
+      "#EDF186",
+      "#A19B9B",
+      "#5444B0",
+      "#493DAB",
+      "#3E35A6",
+      "#362E8E",
+      "#2C2676",
+      "#1A1646"
+    ]
+  },
+  {
+    "id": "figma-14",
+    "name": "Figma-14",
+    "colors": [
+      "#D07E6A",
+      "#E3AF6F",
+      "#F6E073",
+      "#91B98D",
+      "#2C90A6",
+      "#2A79A9",
+      "#2761AD",
+      "#225494",
+      "#1B467B",
+      "#102949"
+    ]
+  },
+  {
+    "id": "figma-15",
+    "name": "Figma-15",
+    "colors": [
+      "#E65D5C",
+      "#F1797A",
+      "#FC9498",
+      "#87A6A9",
+      "#10B7B9",
+      "#14ACAC",
+      "#17A09F",
+      "#148A88",
+      "#107271",
+      "#094443"
+    ]
+  },
+  {
+    "id": "figma-16",
+    "name": "Figma-16",
+    "colors": [
+      "#7D7D7D",
+      "#A8A8A8",
+      "#D2D2D2",
+      "#B2B2B2",
+      "#919191",
+      "#7E7E7E",
+      "#6A6A6A",
+      "#5B5B5B",
+      "#4C4C4C",
+      "#2D2D2D"
+    ]
+  },
+  {
+    "id": "figma-17",
+    "name": "Figma-17",
+    "colors": [
+      "#5F0F40",
+      "#7D092F",
+      "#9A031E",
+      "#CB4721",
+      "#FB8B24",
+      "#EF781C",
+      "#E36414",
+      "#AE5E26",
+      "#795838",
+      "#0F4C5C"
+    ]
+  },
+  {
+    "id": "figma-18",
+    "name": "Figma-18",
+    "colors": [
+      "#414731",
+      "#515A23",
+      "#616C15",
+      "#99A32C",
+      "#D1D942",
+      "#C2CB37",
+      "#B3BC2C",
+      "#909636",
+      "#6C6F41",
+      "#252157"
+    ]
+  },
+  {
+    "id": "figma-19",
+    "name": "Figma-19",
+    "colors": [
+      "#502939",
+      "#672F2A",
+      "#7E351A",
+      "#B27225",
+      "#E6B030",
+      "#D99F27",
+      "#CB8E1E",
+      "#9F782D",
+      "#72623C",
+      "#1A375A"
+    ]
+  },
+  {
+    "id": "figma-20",
+    "name": "Figma-20",
+    "colors": [
+      "#5B2A28",
+      "#771E1C",
+      "#921211",
+      "#C43133",
+      "#F55054",
+      "#E94347",
+      "#DC363A",
+      "#AA3E40",
+      "#774547",
+      "#125554"
+    ]
+  },
+  {
+    "id": "figma-21",
+    "name": "Figma-21",
+    "colors": [
+      "#2C2C2C",
+      "#303030",
+      "#333333",
+      "#6A6A6A",
+      "#A0A0A0",
+      "#919191",
+      "#808080",
+      "#6F6F6F",
+      "#5E5E5E",
+      "#3B3B3B"
+    ]
+  },
+  {
+    "id": "figma-22",
+    "name": "Figma-22",
+    "colors": [
+      "#366260",
+      "#516765",
+      "#6C6B6A",
+      "#8E6D6C",
+      "#B16E6D",
+      "#C76E6D",
+      "#DE6D6D",
+      "#E38384",
+      "#E6999A"
+    ]
+  },
+  {
+    "id": "figma-23",
+    "name": "Figma-23",
+    "colors": [
+      "#39476C",
+      "#515371",
+      "#695F75",
+      "#876F74",
+      "#A67F73",
+      "#BA8971",
+      "#CE936E",
+      "#D7AA7E",
+      "#DEC08F"
+    ]
+  },
+  {
+    "id": "figma-24",
+    "name": "Figma-24",
+    "colors": [
+      "#3F3D66",
+      "#52526B",
+      "#656770",
+      "#7E8270",
+      "#979D70",
+      "#A7AE6F",
+      "#B7C06D",
+      "#C5CC81",
+      "#D2D794"
+    ]
+  },
+  {
+    "id": "figma-25",
+    "name": "Figma-25",
+    "colors": [
+      "#4B4B4B",
+      "#575757",
+      "#626262",
+      "#707070",
+      "#7E7E7E",
+      "#878787",
+      "#8F8F8F",
+      "#A5A5A5",
+      "#BABABA"
+    ]
+  },
+  {
+    "id": "figma-26",
+    "name": "Figma-26",
+    "colors": [
+      "#363636",
+      "#474747",
+      "#585858",
+      "#9C9C9C",
+      "#E0E0E0",
+      "#A5A5A5",
+      "#696969",
+      "#565656",
+      "#424242"
+    ]
+  },
+  {
+    "id": "figma-27",
+    "name": "Figma-27",
+    "colors": [
+      "#293B3B",
+      "#235959",
+      "#1D7575",
+      "#84A6A6",
+      "#ECD7D8",
+      "#D58A8A",
+      "#BD3C3D",
+      "#993333",
+      "#732829"
+    ]
+  },
+  {
+    "id": "figma-28",
+    "name": "Figma-28",
+    "colors": [
+      "#2B363B",
+      "#2B4559",
+      "#295477",
+      "#899BA6",
+      "#EAE2D5",
+      "#CBA886",
+      "#AC6F37",
+      "#8B5B2F",
+      "#694626"
+    ]
+  },
+  {
+    "id": "figma-29",
+    "name": "Figma-29",
+    "colors": [
+      "#2F2E3B",
+      "#353159",
+      "#3A3376",
+      "#908EA6",
+      "#E7E8D6",
+      "#BEC388",
+      "#949D3A",
+      "#788031",
+      "#5B6127"
+    ]
+  },
+  {
+    "id": "figma-30",
+    "name": "Figma-30",
+    "colors": [
+      "#283D3B",
+      "#21585A",
+      "#197278",
+      "#83A8A6",
+      "#EDDDD4",
+      "#D99185",
+      "#E9B5AF",
+      "#9E3A2E",
+      "#772E25"
+    ]
+  },
+  {
+    "id": "figma-31",
+    "name": "Figma-31",
+    "colors": [
+      "#BDBDBD",
+      "#9D9D9D",
+      "#7E7E7E",
+      "#6B6B6B",
+      "#585858",
+      "#5D5D5D",
+      "#606060",
+      "#626262",
+      "#707070",
+      "#7D7D7D"
+    ]
+  },
+  {
+    "id": "figma-32",
+    "name": "Figma-32",
+    "colors": [
+      "#FB5860",
+      "#F74046",
+      "#F2292C",
+      "#F23433",
+      "#F23E39",
+      "#B86E68",
+      "#9C867F",
+      "#7F9E96",
+      "#5FB4AE",
+      "#3DCAC5"
+    ]
+  },
+  {
+    "id": "figma-33",
+    "name": "Figma-33",
+    "colors": [
+      "#F3D321",
+      "#E7B019",
+      "#DC8C10",
+      "#D67039",
+      "#D05460",
+      "#A2529A",
+      "#8C51B8",
+      "#7550D5",
+      "#5F5FE3",
+      "#476CEF"
+    ]
+  },
+  {
+    "id": "figma-34",
+    "name": "Figma-34",
+    "colors": [
+      "#E6EB40",
+      "#D1DA2F",
+      "#BDC91E",
+      "#AEBE36",
+      "#9FB24D",
+      "#838F81",
+      "#757E9C",
+      "#666CB6",
+      "#5F5FC8",
+      "#5650DA"
+    ]
+  },
+  {
+    "id": "figma-35",
+    "name": "Figma-35",
+    "colors": [
+      "#FFBE0B",
+      "#FD8A09",
+      "#FB5607",
+      "#FD2B3B",
+      "#FF006E",
+      "#C11CAD",
+      "#A22ACD",
+      "#8338EC",
+      "#5F5FF6",
+      "#3A86FF"
+    ]
+  },
+  {
+    "id": "figma-36",
+    "name": "Figma-36",
+    "colors": [
+      "#6E6E6E",
+      "#555555",
+      "#3C3C3C",
+      "#333333",
+      "#2F2F2F",
+      "#2A2A2A",
+      "#4A4A4A",
+      "#686868",
+      "#888888",
+      "#A8A8A8"
+    ]
+  },
+  {
+    "id": "figma-37",
+    "name": "Figma-37",
+    "colors": [
+      "#EC5B57",
+      "#AD635D",
+      "#6C6B64",
+      "#526660",
+      "#45645D",
+      "#37615B",
+      "#3E8983",
+      "#44B0AB",
+      "#4BC8C4",
+      "#52DFDD"
+    ]
+  },
+  {
+    "id": "figma-38",
+    "name": "Figma-38",
+    "colors": [
+      "#05668D",
+      "#04738F",
+      "#028090",
+      "#019493",
+      "#00A896",
+      "#01B698",
+      "#02C39A",
+      "#79DBAC",
+      "#B5E7B5",
+      "#F0F3BD"
+    ]
+  },
+  {
+    "id": "figma-39",
+    "name": "Figma-39",
+    "colors": [
+      "#292281",
+      "#2D2586",
+      "#31278B",
+      "#382D93",
+      "#3F329B",
+      "#4437A1",
+      "#4A3BA6",
+      "#9D96BA",
+      "#C7C4C4",
+      "#F1F0CD"
+    ]
+  },
+  {
+    "id": "figma-40",
+    "name": "Figma-40",
+    "colors": [
+      "#164588",
+      "#184E8B",
+      "#19568E",
+      "#1B6393",
+      "#1E7098",
+      "#22799B",
+      "#25829F",
+      "#8ABAB1",
+      "#BED6BB",
+      "#F0F2C3"
+    ]
+  },
+  {
+    "id": "figma-41",
+    "name": "Figma-41",
+    "colors": [
+      "#097C7A",
+      "#098281",
+      "#088988",
+      "#089393",
+      "#089D9E",
+      "#0AA4A6",
+      "#0BABAD",
+      "#7DC0C2",
+      "#B7CACC",
+      "#F0D4D6"
+    ]
+  },
+  {
+    "id": "figma-42",
+    "name": "Figma-42",
+    "colors": [
+      "#4D4D4D",
+      "#555555",
+      "#5C5C5C",
+      "#676767",
+      "#737373",
+      "#7C7C7C",
+      "#848484",
+      "#B8B8B8",
+      "#D2D2D2",
+      "#EBEBEB"
+    ]
+  },
+  {
+    "id": "figma-43",
+    "name": "Figma-43",
+    "colors": [
+      "#16697A",
+      "#2F8498",
+      "#489FB5",
+      "#65B0C1",
+      "#9DCAD2",
+      "#B8D4D8",
+      "#EDE7E3",
+      "#F2D7B5",
+      "#F6C787",
+      "#FFA62B"
+    ]
+  },
+  {
+    "id": "figma-44",
+    "name": "Figma-44",
+    "colors": [
+      "#352E74",
+      "#4E4892",
+      "#6862AE",
+      "#817BBB",
+      "#ADAACF",
+      "#C2C0D6",
+      "#EAEBE4",
+      "#E7E9BF",
+      "#E4E79A",
+      "#DDE44F"
+    ]
+  },
+  {
+    "id": "figma-45",
+    "name": "Figma-45",
+    "colors": [
+      "#254D77",
+      "#3E6795",
+      "#5782B2",
+      "#7297BE",
+      "#A5BBD1",
+      "#BDCAD7",
+      "#EBE8E3",
+      "#EDDFB9",
+      "#EDD68F",
+      "#EEC33A"
+    ]
+  },
+  {
+    "id": "figma-46",
+    "name": "Figma-46",
+    "colors": [
+      "#1A7271",
+      "#338F8E",
+      "#4CABAA",
+      "#68B9B8",
+      "#9FCECE",
+      "#B9D6D6",
+      "#ECE4E4",
+      "#F0C3C5",
+      "#F3A2A5",
+      "#FA6065"
+    ]
+  },
+  {
+    "id": "figma-47",
+    "name": "Figma-47",
+    "colors": [
+      "#525252",
+      "#6C6C6C",
+      "#878787",
+      "#9B9B9B",
+      "#BDBDBD",
+      "#CCCCCC",
+      "#E8E8E8",
+      "#DBDBDB",
+      "#CDCDCD",
+      "#B2B2B2"
+    ]
+  }
+];