diff --git a/src/App.tsx b/src/App.tsx
index b21f474..fc43dfb 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -917,6 +917,20 @@ export default function App() {
       .toLowerCase();
   };
 
+  const getMeaningfulAdjustedTimelineValue = (value: any): number | null => {
+    const n = Number(value);
+    if (!Number.isFinite(n)) return null;
+    // 约定：adjustedTimelineValue=0 为占位值，不作为有效调整时效使用
+    return n === 0 ? null : n;
+  };
+
+  const getNodeBaseTimelineValue = (node: any): number => {
+    const base = Number(node?.timelineValue);
+    if (Number.isFinite(base)) return base;
+    const adjusted = getMeaningfulAdjustedTimelineValue(node?.adjustedTimelineValue);
+    return adjusted ?? 0;
+  };
+
   const remapTimelineAdjustmentsToNewResults = (
     prevResults: any[],
     nextResults: any[]
@@ -936,7 +950,18 @@ export default function App() {
       }
       const base = Number(r?.timelineValue);
       const adjusted = Number(r?.adjustedTimelineValue);
-      if (Number.isFinite(base) && Number.isFinite(adjusted)) {
+      const hasAdjustmentEvidence =
+        extractText(r?.adjustmentDescription).trim().length > 0 ||
+        r?.dateAdjustmentRule !== null ||
+        r?.startDateRule !== null;
+      // 源快照里 adjustedTimelineValue=0 常作为占位值，不代表真实人工调整，需严格过滤
+      if (
+        Number.isFinite(base) &&
+        Number.isFinite(adjusted) &&
+        adjusted !== 0 &&
+        adjusted !== base &&
+        hasAdjustmentEvidence
+      ) {
         const d = adjusted - base;
         if (Number.isFinite(d) && d !== 0) {
           const existed = prevAdjustmentByName.get(name);
@@ -1746,8 +1771,8 @@ export default function App() {
                       // 扁平化结构中，每个快照都包含完整的节点数据
                       if (nodeSnapshot.isCompleteSnapshot) {
                         // 确保adjustedTimelineValue有正确的默认值
-                        const adjustedTimelineValue = nodeSnapshot.adjustedTimelineValue !== undefined ? 
-                          nodeSnapshot.adjustedTimelineValue : nodeSnapshot.timelineValue;
+                        const meaningfulAdjusted = getMeaningfulAdjustedTimelineValue(nodeSnapshot.adjustedTimelineValue);
+                        const adjustedTimelineValue = meaningfulAdjusted ?? nodeSnapshot.timelineValue;
                         
                         // 处理日期格式，优先使用时间戳格式
                         let estimatedStart = nodeSnapshot.estimatedStart;
@@ -3919,11 +3944,7 @@ export default function App() {
     const newAdjustment = currentAdjustment + adjustment;
     
     // 允许调整后的时效值为负数，用于向前回退结束时间
-    const baseValue = (typeof timelineResults[nodeIndex]?.timelineValue === 'number')
-      ? timelineResults[nodeIndex]!.timelineValue
-      : (typeof timelineResults[nodeIndex]?.adjustedTimelineValue === 'number')
-        ? timelineResults[nodeIndex]!.adjustedTimelineValue
-        : 0;
+    const baseValue = getNodeBaseTimelineValue(timelineResults[nodeIndex]);
     
     // 检查当前调整的节点是否为周转周期节点
     const currentNodeName = timelineResults[nodeIndex]?.nodeName;
@@ -3961,11 +3982,7 @@ export default function App() {
 
     for (let i = 0; i < updatedResults.length; i++) {
       const result = updatedResults[i];
-      const baseTimelineValue = (typeof result.timelineValue === 'number')
-        ? result.timelineValue
-        : (typeof result.adjustedTimelineValue === 'number')
-          ? result.adjustedTimelineValue
-          : 0;
+      const baseTimelineValue = getNodeBaseTimelineValue(result);
       const nodeKey = buildTimelineAdjustmentKey(result, i);
       const adjustment = adjustments[nodeKey] || 0;
       const adjustedTimelineValue = baseTimelineValue + adjustment;
@@ -4089,11 +4106,7 @@ export default function App() {
 
     for (let i = updatedResults.length - 1; i >= 0; i--) {
       const result = updatedResults[i];
-      const baseTimelineValue = (typeof result.timelineValue === 'number')
-        ? result.timelineValue
-        : (typeof result.adjustedTimelineValue === 'number')
-          ? result.adjustedTimelineValue
-          : 0;
+      const baseTimelineValue = getNodeBaseTimelineValue(result);
       const nodeKey = buildTimelineAdjustmentKey(result, i);
       const adjustment = adjustments[nodeKey] || 0;
       const adjustedTimelineValue = baseTimelineValue + adjustment;
@@ -4151,12 +4164,7 @@ export default function App() {
     if (!Array.isArray(nodes) || nodes.length === 0 || roundedExtra === 0) return {};
 
     const isTurnover = (node: any) => node?.nodeName === '周转周期';
-    const toBase = (node: any) => {
-      const v = typeof node?.timelineValue === 'number'
-        ? node.timelineValue
-        : (typeof node?.adjustedTimelineValue === 'number' ? node.adjustedTimelineValue : 0);
-      return Number.isFinite(v) ? v : 0;
-    };
+    const toBase = (node: any) => getNodeBaseTimelineValue(node);
 
     const eligible = nodes
       .map((n, i) => ({ i, base: toBase(n), turnover: isTurnover(n), excluded: !!excluded?.[i] }))
@@ -4435,11 +4443,7 @@ export default function App() {
     // 只重新计算从第一个调整节点开始的后续节点
     for (let i = firstAdjustedIndex; i < updatedResults.length; i++) {
       const result = updatedResults[i];
-      const baseTimelineValue = (typeof result.timelineValue === 'number')
-        ? result.timelineValue
-        : (typeof result.adjustedTimelineValue === 'number')
-          ? result.adjustedTimelineValue
-          : 0;
+      const baseTimelineValue = getNodeBaseTimelineValue(result);
       const nodeKey = buildTimelineAdjustmentKey(result, i);
       const adjustment = adjustments[nodeKey] || 0;
       const adjustedTimelineValue = baseTimelineValue + adjustment;
@@ -6980,9 +6984,7 @@ const omsVersionColumns = [
                   }
                 ]}
                 dataSource={nodes.map((n, index) => {
-                  const base = typeof n?.timelineValue === 'number'
-                    ? n.timelineValue
-                    : (typeof n?.adjustedTimelineValue === 'number' ? n.adjustedTimelineValue : 0);
+                  const base = getNodeBaseTimelineValue(n);
                   return {
                     key: index,
                     index,
@@ -7360,11 +7362,7 @@ const omsVersionColumns = [
               {timelineResults.map((result, index) => {
                 const nodeKey = buildTimelineAdjustmentKey(result, index);
                 const adjustment = timelineAdjustments[nodeKey] || 0;
-                const baseValue = (typeof result.timelineValue === 'number')
-                  ? result.timelineValue
-                  : (typeof result.adjustedTimelineValue === 'number')
-                    ? result.adjustedTimelineValue
-                    : 0;
+                const baseValue = getNodeBaseTimelineValue(result);
                 const adjustedValue = baseValue + adjustment;
                 
                 // 检查是否为周转周期节点
@@ -7375,11 +7373,7 @@ const omsVersionColumns = [
                   if (r.nodeName === '周转周期') {
                     const k = buildTimelineAdjustmentKey(r, i);
                     const adj = timelineAdjustments[k] || 0;
-                    const baseVal = (typeof r.timelineValue === 'number')
-                      ? r.timelineValue
-                      : (typeof r.adjustedTimelineValue === 'number')
-                        ? r.adjustedTimelineValue
-                        : 0;
+                    const baseVal = getNodeBaseTimelineValue(r);
                     return (baseVal + adj) === 0;
                   }
                   return false;
@@ -7540,11 +7534,7 @@ const omsVersionColumns = [
               const desiredBusinessDays = Math.round(hi * 2) / 2; // 与UI保持0.5粒度一致
 
               // 目标调整量 = 目标工作日数 - 基准时效值
-              const baseValue = (typeof currentResult.timelineValue === 'number')
-                ? currentResult.timelineValue
-                : (typeof currentResult.adjustedTimelineValue === 'number')
-                  ? currentResult.adjustedTimelineValue
-                  : 0;
+              const baseValue = getNodeBaseTimelineValue(currentResult);
 
               const desiredAdjustmentAbs = desiredBusinessDays - baseValue;
               const currentAdj = timelineAdjustments[nodeKey] || 0;
@@ -7579,9 +7569,7 @@ const omsVersionColumns = [
       disabled={isTurnoverNode}
       onClick={() => {
         try {
-          const baseTimelineValue = (typeof result.timelineValue === 'number')
-            ? result.timelineValue
-            : (typeof result.adjustedTimelineValue === 'number' ? result.adjustedTimelineValue : 0);
+          const baseTimelineValue = getNodeBaseTimelineValue(result);
           const currentAdj = timelineAdjustments[nodeKey] || 0;
           const targetAdj = -baseTimelineValue;
           const deltaToApply = targetAdj - currentAdj;