diff --git a/src/components/mCountCard/index.vue b/src/components/mCountCard/index.vue
index 1aa4ea7..3988658 100644
--- a/src/components/mCountCard/index.vue
+++ b/src/components/mCountCard/index.vue
@@ -37,14 +37,14 @@ const props = defineProps({
   info: {
     type: Object,
     default: () => {
-      return {
-        icon: "xiaoshoujine",
-        zh: "2023年销售金额",
-        en: "Sales amount in 2023",
-        value: 9500,
-        unit: "万元",
-        decimals: 0,
-      }
+      return {
+        icon: "",
+        zh: "",
+        en: "",
+        value: 0,
+        unit: "",
+        decimals: 0,
+      }
     },
   },
 })
diff --git a/src/components/mCountTo/vue-countTo.vue b/src/components/mCountTo/vue-countTo.vue
index 86f7dbd..beb9944 100644
--- a/src/components/mCountTo/vue-countTo.vue
+++ b/src/components/mCountTo/vue-countTo.vue
@@ -12,10 +12,10 @@ export default {
       required: false,
       default: 0,
     },
-    endVal: {
-      type: Number,
-      required: false,
-      default: 2017,
+    endVal: {
+      type: Number,
+      required: false,
+      default: 0,
     },
     duration: {
       type: Number,
diff --git a/src/components/mSvglineAnimation/index.vue b/src/components/mSvglineAnimation/index.vue
index 15203b0..82999bd 100644
--- a/src/components/mSvglineAnimation/index.vue
+++ b/src/components/mSvglineAnimation/index.vue
@@ -37,9 +37,11 @@
  * @property {Number} begin  路径开始的位置
  * @property {Number} dir 路径移动方向 [0,1]-正向 [1,0]-反向
  * @property {Number} strokeWidth 路径的粗细
- * @property {String} color 路径的颜色
- */
-export default {
+ * @property {String} color 路径的颜色
+ */
+let svgLineUid = 0
+
+export default {
   name: "SvglineAnimation",
   props: {
     width: {
@@ -78,20 +80,15 @@ export default {
       type: Number,
       default: 4,
     },
-  },
-  data() {
-    let uid = 1
-    return {
-      maskId: "svgline-" + uid,
-      radialGradientId: "radialGradient-" + uid,
-    }
-  },
-  mounted() {
-    let uid = this._.uid
-    this.maskId = "svgline-" + uid
-    this.radialGradientId = "radialGradient-" + uid
-  },
-}
+  },
+  data() {
+    const uid = ++svgLineUid
+    return {
+      maskId: "svgline-" + uid,
+      radialGradientId: "radialGradient-" + uid,
+    }
+  },
+}
 </script>
 
 <style>
diff --git a/src/services/pastureApi.js b/src/services/pastureApi.js
index da96f1f..a200044 100644
--- a/src/services/pastureApi.js
+++ b/src/services/pastureApi.js
@@ -66,7 +66,7 @@ export function getPastureList() {
 
 export async function getPastureProfile() {
   const [dashboard, list] = await Promise.all([
-    getV3("/screen2/pasture-management/dashboard", { year: 2024 }),
+    getV3("/screen2/pasture-management/dashboard"),
     getPastureList(),
   ])
 
diff --git a/src/services/request.js b/src/services/request.js
index 1d89cea..46afb5d 100644
--- a/src/services/request.js
+++ b/src/services/request.js
@@ -15,9 +15,15 @@ function appendParams(url, params = {}) {
 }
 
 export async function requestJson(url, options = {}) {
-  const { params, timeout = DEFAULT_TIMEOUT, ...fetchOptions } = options
+  const { params, timeout = DEFAULT_TIMEOUT, signal: externalSignal, ...fetchOptions } = options
   const controller = new AbortController()
   let timedOut = false
+  const abortFromExternalSignal = () => controller.abort()
+  if (externalSignal?.aborted) {
+    controller.abort()
+  } else {
+    externalSignal?.addEventListener?.("abort", abortFromExternalSignal, { once: true })
+  }
   const timer = window.setTimeout(() => {
     timedOut = true
     controller.abort()
@@ -60,6 +66,7 @@ export async function requestJson(url, options = {}) {
     throw error
   } finally {
     window.clearTimeout(timer)
+    externalSignal?.removeEventListener?.("abort", abortFromExternalSignal)
   }
 }
 
diff --git a/src/services/resourceManagementApi.js b/src/services/resourceManagementApi.js
index cc6f84a..e1ce04e 100644
--- a/src/services/resourceManagementApi.js
+++ b/src/services/resourceManagementApi.js
@@ -6,7 +6,7 @@ export async function getResourceManagementOptions() {
   return normalizeResponseData(await requestJson(`${BASE_URL}/options`)) || {}
 }
 
-export async function getResourceDashboard(topicKey, year = 2023) {
+export async function getResourceDashboard(topicKey, year) {
   return normalizeResponseData(await requestJson(`${BASE_URL}/dashboard`, {
     params: { topic: topicKey, year },
   })) || createEmptyDashboard(topicKey)
diff --git a/src/services/yakApi.js b/src/services/yakApi.js
index 03cead5..98158b2 100644
--- a/src/services/yakApi.js
+++ b/src/services/yakApi.js
@@ -10,9 +10,8 @@ function joinBase(base, path) {
 
 function unwrapResponse(response) {
   const failed =
-    response?.success === false &&
-    response?.code !== undefined &&
-    ![0, 200, "0", "200"].includes(response.code)
+    response?.success === false ||
+    (response?.code !== undefined && ![0, 200, "0", "200"].includes(response.code))
 
   if (failed) {
     throw new Error(response?.msg || response?.message || "接口请求失败")
@@ -117,6 +116,10 @@ export function getYakEpidemicAnalysis(params = {}) {
   return get(OPEN_API_BASE, "/screen2/yak-management/epidemic/analysis", params).then((data) => data || {})
 }
 
+export function getYakEpidemicOptions() {
+  return get(OPEN_API_BASE, "/screen2/yak-management/epidemic/options").then((data) => data || {})
+}
+
 export function getYakEpidemicRecords(params = {}) {
   return get(OPEN_API_BASE, "/screen2/yak-management/epidemic/records", params).then((data) => data || {})
 }
diff --git a/src/views/admin/OperationLogs.vue b/src/views/admin/OperationLogs.vue
index 134044f..1d31d15 100644
--- a/src/views/admin/OperationLogs.vue
+++ b/src/views/admin/OperationLogs.vue
@@ -46,7 +46,7 @@
 </template>
 
 <script setup>
-import { reactive, ref, watch } from "vue"
+import { reactive, ref } from "vue"
 import { message } from "ant-design-vue"
 import { ReloadOutlined, SearchOutlined } from "@ant-design/icons-vue"
 import { fetchOperationLogs } from "@/services/admin"
@@ -63,7 +63,6 @@ const columns = [
 const query = reactive({ title: "", operName: "", businessType: undefined, status: undefined })
 const dateRange = ref([]), rows = ref([]), loading = ref(false), detailOpen = ref(false), detail = ref(null)
 const pagination = reactive({ current: 1, pageSize: 20, total: 0, showSizeChanger: true, showQuickJumper: true, showTotal: (total) => `共 ${total} 条` })
-watch(dateRange, () => {}, { deep: true })
 
 async function loadRows() { loading.value = true; try { const result = await fetchOperationLogs({ ...query, beginTime: dateRange.value?.[0], endTime: dateRange.value?.[1], pageNum: pagination.current, pageSize: pagination.pageSize }); rows.value = result.rows || []; pagination.total = Number(result.total || 0) } catch (error) { message.error(error.message) } finally { loading.value = false } }
 function search() { pagination.current = 1; loadRows() }
diff --git a/src/views/forestGrassWet/components/FeatureInfoPanel.vue b/src/views/forestGrassWet/components/FeatureInfoPanel.vue
index 6e5db96..1399d81 100644
--- a/src/views/forestGrassWet/components/FeatureInfoPanel.vue
+++ b/src/views/forestGrassWet/components/FeatureInfoPanel.vue
@@ -228,7 +228,7 @@ const topicBusinessFields = {
     [["management_control_requirement"], "管控要求"],
     [["reserve_level", "natural_protected_area_level"], "保护地级别"],
     [["reserve_type", "natural_protected_area_type"], "保护地类型"],
-    [["area_source_mj", "area_mu", "area_m2"], "图斑面积"],
+    [["area_mu", "area_m2"], "图斑面积"],
     [["original_area_m2"], "原始面积"],
     [["adjusted_area_m2"], "调整面积"],
     [["remarks"], "备注"],
@@ -527,7 +527,6 @@ const fieldLabels = {
   redline_type: "红线类型",
   ecosystem_service_type: "生态系统服务类型",
   management_control_requirement: "管控要求",
-  area_source_mj: "图斑面积",
   area_m2: "图斑面积",
   original_area_m2: "原始面积",
   adjusted_area_m2: "调整面积",
@@ -670,7 +669,6 @@ const patchAreaFieldKeys = new Set([
   "source_area_mu",
   "area_m2",
   "acreage",
-  "area_source_mj",
   "original_area_m2",
   "adjusted_area_m2",
   "mj",
@@ -685,7 +683,6 @@ const patchAreaFieldKeys = new Set([
 const townshipNamesByLength = [...hongyuanTownshipDisplayOrder].sort((a, b) => b.length - a.length)
 
 const propsData = computed(() => props.feature?.properties || {})
-const featureGeometry = computed(() => props.feature?.feature?.geometry || props.feature?.geometry || null)
 const externalDisplayRows = computed(() =>
   (Array.isArray(props.rows) ? props.rows : [])
     .map((row, index) => ({
@@ -745,10 +742,6 @@ const displayRows = computed(() => {
       used.add(row.sourceKey)
     }
   })
-  const areaLabel = getTopicAreaLabel(activeTopicKey.value)
-  if (!isArtificialGrassland.value && !isEngineeringSuitabilityFeature.value && !rows.some((row) => row.label === areaLabel || isGenericPatchAreaLabel(row.label))) {
-    addStaticRow(rows, used, areaLabel, formatGeometryArea(featureGeometry.value), "geometry-area")
-  }
   if (useCompactGrassland) return rows.slice(0, 10)
   Object.entries(propsData.value).forEach(([key, value]) => {
     if (used.has(key) || shouldHideFallbackField(key, value)) return
@@ -865,17 +858,6 @@ function getRowPriority(row, index) {
   return 150 + index
 }
 
-function addStaticRow(rows, used, label, value, sourceKey) {
-  if (!hasValue(value) || rows.some((row) => row.label === label || row.value === value)) return
-  rows.push({
-    key: `static-${sourceKey}`,
-    sourceKey,
-    label,
-    value,
-  })
-  used.add(sourceKey)
-}
-
 function resolveDisplayLabel(label, keys = []) {
   if (activeTopicKey.value === "ecological" && isEcologicalScopeFeature.value && isEcologicalAreaLabel(label, keys)) {
     return "图斑面积"
@@ -939,7 +921,6 @@ function formatValue(key, value) {
     if (patchAreaFieldKeys.has(key) && number === 0) return ""
     if (number === 0 && zeroHiddenKeys.has(key)) return ""
     const formatted = Number.isInteger(number) ? `${number}` : `${Number(number.toFixed(2))}`
-    if (key === "area_source_mj") return `${formatAreaWanMu(number * 15)} 万亩`
     if (activeTopicKey.value === "ecological" && isEcologicalScopeFeature.value && ["area_mu", "acreage", "mj"].includes(key)) return `${formatAreaWanMu(number)} 万亩`
     if (activeTopicKey.value === "ecological" && isEcologicalScopeFeature.value && ["area_m2", "original_area_m2", "adjusted_area_m2"].includes(key)) return `${formatAreaWanMu(number / 666.6667)} 万亩`
     if (["xbmj", "tbdlmj", "geomj", "area_square_meter"].includes(key)) return `${formatAreaMu(number / 666.6667)} 亩`
@@ -1099,49 +1080,6 @@ function isUnmappedCodeField(key, value) {
   ].includes(key)
 }
 
-function formatGeometryArea(geometry) {
-  const squareMeters = getGeometryAreaSquareMeters(geometry)
-  if (!squareMeters) return ""
-  const mu = squareMeters / 666.6667
-  if (activeTopicKey.value === "ecological" && isEcologicalScopeFeature.value) return `${formatAreaWanMu(mu)} 万亩`
-  return `${formatAreaMu(mu)} 亩`
-}
-
-function getGeometryAreaSquareMeters(geometry) {
-  if (!geometry?.coordinates) return 0
-  if (geometry.type === "Polygon") return getPolygonAreaSquareMeters(geometry.coordinates)
-  if (geometry.type === "MultiPolygon") {
-    return geometry.coordinates.reduce((sum, polygon) => sum + getPolygonAreaSquareMeters(polygon), 0)
-  }
-  return 0
-}
-
-function getPolygonAreaSquareMeters(rings = []) {
-  if (!rings.length) return 0
-  const [outer, ...holes] = rings
-  const outerArea = Math.abs(getRingAreaSquareMeters(outer))
-  const holesArea = holes.reduce((sum, ring) => sum + Math.abs(getRingAreaSquareMeters(ring)), 0)
-  return Math.max(0, outerArea - holesArea)
-}
-
-function getRingAreaSquareMeters(ring = []) {
-  if (ring.length < 3) return 0
-  const averageLat = ring.reduce((sum, point) => sum + Number(point?.[1] || 0), 0) / ring.length
-  const metersPerDegree = 111320
-  const xScale = metersPerDegree * Math.cos((averageLat * Math.PI) / 180)
-  let area = 0
-  for (let index = 0; index < ring.length; index++) {
-    const current = ring[index]
-    const next = ring[(index + 1) % ring.length]
-    const x1 = Number(current?.[0] || 0) * xScale
-    const y1 = Number(current?.[1] || 0) * metersPerDegree
-    const x2 = Number(next?.[0] || 0) * xScale
-    const y2 = Number(next?.[1] || 0) * metersPerDegree
-    area += x1 * y2 - x2 * y1
-  }
-  return area / 2
-}
-
 function normalizeFieldLabel(key) {
   return String(key)
     .replace(/_/g, " ")
diff --git a/src/views/forestGrassWet/index.vue b/src/views/forestGrassWet/index.vue
index aabc805..99866f8 100644
--- a/src/views/forestGrassWet/index.vue
+++ b/src/views/forestGrassWet/index.vue
@@ -636,7 +636,7 @@ async function loadBusinessStats(topicKey, layerKey = activeLayerKey.value) {
   coreLoading.value = true
   coreStatus.value = "loading"
   try {
-    const result = await getResourceDashboard(topicKey, 2023)
+    const result = await getResourceDashboard(topicKey)
     if (destroyed || requestId !== businessRequestId) return
     if (topicKey !== activeTopicKey.value) return
     if (topicKey !== "woodland" && (businessLayerKey || "") !== (activeLayerKey.value || "")) return
diff --git a/src/views/grassLivestockBalance/BalanceAnalysisWorkbench.vue b/src/views/grassLivestockBalance/BalanceAnalysisWorkbench.vue
index 48d4611..1d9dccc 100644
--- a/src/views/grassLivestockBalance/BalanceAnalysisWorkbench.vue
+++ b/src/views/grassLivestockBalance/BalanceAnalysisWorkbench.vue
@@ -242,13 +242,13 @@ const verdictLabel = computed(() => {
   return text === "基本实现草畜平衡" ? "基本平衡" : text
 })
 const adviceText = computed(() => props.balance?.adviceRows?.[0] || props.balance?.advice || "保持动态监测，结合牧草产量及时调整载畜规模。")
-const childStatusLabel = computed(() => props.balance?.areaLevel === "village" ? "空间明细" : "下级区域")
+const childStatusLabel = computed(() => props.balance?.areaLevel === "village" ? "类型分析" : "下级区域")
 const childStatusValue = computed(() => {
   if (!props.balance) return "--"
   if (props.balance.areaLevel === "village") {
     if (props.analysisState === "idle") return "待分析"
     if (props.analysisState === "running" && props.progress < 40) return "核验中"
-    return detailAvailable.value ? "图斑已归属" : "待归属"
+    return detailAvailable.value ? "已完成" : "待归集"
   }
   const suffix = props.balance.areaLevel === "county" ? "个乡镇" : "个村"
   return `${Number(props.balance.childCount) || 0}${suffix}`
diff --git a/src/views/pastureManagement/index.vue b/src/views/pastureManagement/index.vue
index a7d89ad..4f026d1 100644
--- a/src/views/pastureManagement/index.vue
+++ b/src/views/pastureManagement/index.vue
@@ -1214,9 +1214,7 @@ function handlePastureFeatureInfo(payload = {}) {
   if (!pickedFeature || !layerKey.startsWith("pasture-focus")) return
   const sourceProperties = pickedFeature.properties || pickedFeature.feature?.properties || {}
   const recognizedYakCount = pickValue(sourceProperties, ["recognizedYakCount", "recognized_yak_count"])
-  const acreage = pickValue(sourceProperties, ["acreage", "areaMu", "area_mu", "grasslandArea", "grassland_area"])
   const grasslandMuPerYak = pickValue(sourceProperties, ["grasslandMuPerYak", "grassland_mu_per_yak"])
-    ?? calculateGrasslandMuPerYak(acreage, recognizedYakCount)
   const properties = {
     ...sourceProperties,
     recognizedYakCount,
@@ -1234,13 +1232,6 @@ function handlePastureFeatureInfo(payload = {}) {
   grasslandFeatureLoading.value = false
 }
 
-function calculateGrasslandMuPerYak(acreage, recognizedYakCount) {
-  const area = Number(acreage)
-  const yakCount = Number(recognizedYakCount)
-  if (!Number.isFinite(area) || !Number.isFinite(yakCount) || yakCount <= 0) return null
-  return Number((area / yakCount).toFixed(2))
-}
-
 function formatPastureDetailValue(value, unit, fractionDigits) {
   if (value === undefined || value === null || value === "") return ""
   const number = Number(value)
@@ -1514,14 +1505,11 @@ function normalizeOnlineRows(rows = []) {
       const registered = Number(pickValue(item, ["registeredMuhuCount", "registered_muhu_count", "registeredCount"]))
       const online = Number(pickValue(item, ["muhuCount", "muhu_count", "onlineCount"]))
       const rawValue = pickValue(item, ["onlinePercent", "uplineRate", "upline_rate", "onlineRate", "value", "percent", "rate"])
-      const value = rawValue !== undefined && rawValue !== null && rawValue !== ""
-        ? rawValue
-        : registered > 0 ? (online / registered) * 100 : undefined
-      if (!name || value === undefined || value === null || value === "") return null
+      if (!name || rawValue === undefined || rawValue === null || rawValue === "") return null
       return {
         key: item.code || item.areaCode || item.area_code || name,
         name,
-        value: Number(String(value).replace("%", "")) || 0,
+        value: Number(String(rawValue).replace("%", "")) || 0,
         unit: "%",
         extra: Number.isFinite(online) && Number.isFinite(registered) && registered > 0 ? `${online}/${registered}户` : item.extra,
       }
diff --git a/src/views/yakManagement/YakOlMap.vue b/src/views/yakManagement/YakOlMap.vue
index cbb5f8b..8afd6be 100644
--- a/src/views/yakManagement/YakOlMap.vue
+++ b/src/views/yakManagement/YakOlMap.vue
@@ -50,6 +50,7 @@ import RegularShape from "ol/style/RegularShape.js"
 import Stroke from "ol/style/Stroke.js"
 import Style from "ol/style/Style.js"
 import Text from "ol/style/Text.js"
+import { HONGYUAN_COUNTY_CENTER } from "@/config/layers"
 import { hongyuanTownshipLabelPoints, hongyuanTownshipsGeoJson } from "@/config/townshipBoundaries"
 
 const props = defineProps({
@@ -63,7 +64,7 @@ const props = defineProps({
   },
   center: {
     type: Array,
-    default: () => [103.07984, 33.029058],
+    default: () => [...HONGYUAN_COUNTY_CENTER],
   },
   minZoom: {
     type: Number,
@@ -115,7 +116,7 @@ const props = defineProps({
 
 const emit = defineEmits(["ready", "tile-status", "layer-status", "map-click"])
 
-const HONGYUAN_CENTER = [103.07984, 33.029058]
+const HONGYUAN_CENTER = [...HONGYUAN_COUNTY_CENTER]
 const INITIAL_ZOOM = 21
 const TOWN_BOUNDARY_GLOW_Z_INDEX = 232
 const TOWN_BOUNDARY_LINE_Z_INDEX = 233
diff --git a/src/views/yakManagement/index.vue b/src/views/yakManagement/index.vue
index 7353a79..bea9b9c 100644
--- a/src/views/yakManagement/index.vue
+++ b/src/views/yakManagement/index.vue
@@ -213,7 +213,8 @@
             </m-card>
 
             <m-card class="yak-side-card left-card" title="预测因子雷达" :width="sideCardWidth" :height="sideCardHeight">
-              <v-chart class="yak-chart" :option="forecastFactorOption" :autoresize="true" />
+              <v-chart v-if="hasForecastFactorData" class="yak-chart" :option="forecastFactorOption" :autoresize="true" />
+              <div v-else class="yak-chart-empty">暂无预测因子数据</div>
             </m-card>
           </template>
 
@@ -756,6 +757,7 @@ import {
 import {
   getYakEpidemicAnalysis,
   getYakEpidemicDetail,
+  getYakEpidemicOptions,
   getYakEpidemicRecords,
   getYakEpidemicStats,
   getYakEpidemicVillageStats,
@@ -843,7 +845,7 @@ const viewTopics = [
 
 const activeView = ref(resolveYakViewKey(props.viewKey))
 const activeYakLayerKeys = ref([])
-const activePeriodKey = ref("2027")
+const activePeriodKey = ref("")
 const activeForecastGranularity = ref("month")
 const activeFoundationPage = ref(0)
 const apiTownRows = ref([])
@@ -851,8 +853,8 @@ const apiStructureRows = ref([])
 const yakProfileRevision = ref(0)
 const structureLoading = ref(false)
 const structureError = ref("")
-const epidemicYears = [2025, 2026]
-const activeEpidemicYear = ref(2026)
+const epidemicYears = ref([])
+const activeEpidemicYear = ref(null)
 const epidemicAnalysis = ref({ metrics: {} })
 const epidemicStats = ref({ rows: [], year: null })
 const epidemicVillageStats = ref({ rows: [] })
@@ -1978,6 +1980,11 @@ const forecastFactorOption = computed(() => {
   }
 })
 
+const hasForecastFactorData = computed(() => {
+  yakProfileRevision.value
+  return forecastFactorRows.length >= 3
+})
+
 const forecastTownOption = computed(() => buildHorizontalBarOption(forecastTownRows.value, "forecast", "头"))
 
 const forecastStructureOption = computed(() => {
@@ -3041,8 +3048,8 @@ function normalizeEpidemicTownName(name) {
 
 function resolveEpidemicYear(year) {
   const numericYear = Number(year)
-  if (Number.isFinite(numericYear) && epidemicYears.includes(numericYear)) return numericYear
-  return epidemicYears[epidemicYears.length - 1]
+  if (Number.isFinite(numericYear) && epidemicYears.value.includes(numericYear)) return numericYear
+  return epidemicYears.value[epidemicYears.value.length - 1] ?? null
 }
 
 function getEpidemicYearRange(year = activeEpidemicYear.value) {
@@ -3678,6 +3685,12 @@ async function loadRemoteRows() {
   ])
   if (profileResult.status === "fulfilled") {
     configureYakManagementProfile(profileResult.value)
+    const defaultPeriodKey = String(profileResult.value?.defaultPeriod || "")
+    const currentPeriodExists = forecastPeriods.some((item) => item.key === activePeriodKey.value)
+    const defaultPeriodExists = forecastPeriods.some((item) => item.key === defaultPeriodKey)
+    if (!currentPeriodExists) {
+      activePeriodKey.value = defaultPeriodExists ? defaultPeriodKey : forecastPeriods[0]?.key || ""
+    }
     yakProfileRevision.value += 1
   } else {
     structureError.value = "牦牛管理基础数据接口异常"
@@ -3865,11 +3878,30 @@ function locateTradeRecord(row) {
 }
 
 async function loadEpidemicData(preferredYear = activeEpidemicYear.value) {
+  epidemicLoading.value = true
+  epidemicError.value = ""
+  if (!epidemicYears.value.length) {
+    try {
+      const options = await getYakEpidemicOptions()
+      epidemicYears.value = normalizeTradeYears(options?.years)
+      const latestYear = Number(options?.latestYear ?? options?.latest_year)
+      activeEpidemicYear.value = epidemicYears.value.includes(latestYear)
+        ? latestYear
+        : epidemicYears.value[epidemicYears.value.length - 1] ?? null
+    } catch (error) {
+      epidemicError.value = "防疫年份接口异常"
+      epidemicLoading.value = false
+      return
+    }
+  }
   const targetYear = resolveEpidemicYear(preferredYear)
+  if (!Number.isFinite(targetYear)) {
+    epidemicError.value = "暂无可用防疫年份"
+    epidemicLoading.value = false
+    return
+  }
   const yearRange = getEpidemicYearRange(targetYear)
   activeEpidemicYear.value = targetYear
-  epidemicLoading.value = true
-  epidemicError.value = ""
   const [analysisResult, recordsResult, statsResult, villageStatsResult] = await Promise.allSettled([
     getYakEpidemicAnalysis(yearRange),
     getYakEpidemicRecords({
@@ -4307,9 +4339,8 @@ function buildForecastKLineRows(series) {
     const close = Number(series.stock?.[index] || open)
     const birth = Math.max(0, Number(series.births?.[index] || 0) - Number(series.births?.[Math.max(index - 1, 0)] || 0))
     const outflow = Math.max(0, Number(series.outflow?.[index] || 0) - Number(series.outflow?.[Math.max(index - 1, 0)] || 0))
-    const wickPadding = Math.max(120, Math.round((birth + outflow) * 0.18))
-    const high = Math.max(open, close) + Math.max(wickPadding, Math.round(birth * 0.32))
-    const low = Math.max(0, Math.min(open, close) - Math.max(wickPadding, Math.round(outflow * 0.32)))
+    const high = Math.max(open, close)
+    const low = Math.min(open, close)
     return {
       label,
       open,
@@ -4904,6 +4935,15 @@ function formatSignedWan(value) {
   box-sizing: border-box;
 }
 
+.yak-chart-empty {
+  display: grid;
+  place-items: center;
+  width: 100%;
+  height: 100%;
+  color: rgba(180, 235, 242, 0.68);
+  font-size: 12px;
+}
+
 .forecast-trend-card {
   position: relative;
   width: 100%;