diff --git a/src/views/channel/supplier.vue b/src/views/channel/supplier.vue
index ec5534a..cf1de1c 100644
--- a/src/views/channel/supplier.vue
+++ b/src/views/channel/supplier.vue
@@ -235,11 +235,11 @@ const progressItems = computed(() => [
 ]);
 
 const rows = ref([
-  { key: "procurementCost", name: "采购成本", description: "元器件/模组的单台采购总成本，含运费、税费", smallBatchWeight: 20, largeBatchWeight: 35 },
-  { key: "deliveryCycle", name: "交货周期", description: "从下单到收货的时间，影响试产/生产进度", smallBatchWeight: 30, largeBatchWeight: 15 },
-  { key: "qualityReliability", name: "品质可靠性", description: "元器件是否为正品，有无翻新/故障，规格匹配度", smallBatchWeight: 20, largeBatchWeight: 30 },
-  { key: "procurementFlexibility", name: "采购灵活性", description: "是否支持小批量拆卖、零散采购、退换货", smallBatchWeight: 20, largeBatchWeight: 10 },
-  { key: "serviceSupport", name: "服务支持", description: "是否提供技术文档、售后支持，退换货是否方便", smallBatchWeight: 10, largeBatchWeight: 10 },
+  { key: "procurementCost", name: "采购成本", description: "元器件/模组的单台采购总成本，含运费、税费", smallBatchWeight: null, largeBatchWeight: null },
+  { key: "deliveryCycle", name: "交货周期", description: "从下单到收货的时间，影响试产/生产进度", smallBatchWeight: null, largeBatchWeight: null },
+  { key: "qualityReliability", name: "品质可靠性", description: "元器件是否为正品，有无翻新/故障，规格匹配度", smallBatchWeight: null, largeBatchWeight: null },
+  { key: "procurementFlexibility", name: "采购灵活性", description: "是否支持小批量拆卖、零散采购、退换货", smallBatchWeight: null, largeBatchWeight: null },
+  { key: "serviceSupport", name: "服务支持", description: "是否提供技术文档、售后支持，退换货是否方便", smallBatchWeight: null, largeBatchWeight: null },
 ]);
 
 const DEFAULT_RISKS = [
@@ -429,7 +429,7 @@ function applyStepThree(answer) {
 
 async function saveStepOne() {
   try {
-    const result = await validateSupplierEvaluationStepOne(buildStepOnePayload());
+    const result = (await validateSupplierEvaluationStepOne(buildStepOnePayload()))?.data || {};
     if (!result?.valid) throw new Error(result?.message || "权重校验未通过");
     await saveStudentTrainingAnswer({ taskKey: TASK_KEY, currentStep: 1, saveAction: "SAVE", progressStatus: "IN_PROGRESS", step1Answer: JSON.stringify({ items: result.items }) });
     stepOneSaved.value = true;
@@ -443,7 +443,7 @@ async function saveStepOne() {
 async function saveStepTwo() {
   try {
     syncChannelNames();
-    const result = await validateSupplierEvaluationStepTwo(buildStepTwoPayload());
+    const result = (await validateSupplierEvaluationStepTwo(buildStepTwoPayload()))?.data || {};
     if (!result?.valid) throw new Error(result?.message || "渠道评分校验未通过");
     smallBatchRows.value = createScoreRows(result.smallBatchChannels);
     largeBatchRows.value = createScoreRows(result.largeBatchChannels);
@@ -458,7 +458,7 @@ async function saveStepTwo() {
 
 async function saveStepThree() {
   try {
-    const result = await validateSupplierEvaluationStepThree(buildStepThreePayload());
+    const result = (await validateSupplierEvaluationStepThree(buildStepThreePayload()))?.data || {};
     if (!result?.valid) throw new Error(result?.message || "第 3 步校验未通过");
     const step3Answer = { scenarioAnalyses: result.scenarioAnalyses, procurementRecommendation: result.procurementRecommendation, risks: result.risks };
     await saveStudentTrainingAnswer({ taskKey: TASK_KEY, currentStep: 3, saveAction: "SAVE", progressStatus: "IN_PROGRESS", step3Answer: JSON.stringify(step3Answer) });
@@ -510,7 +510,7 @@ onMounted(async () => {
     taskConfig.value = {};
   }
   try {
-    const answer = await getStudentTrainingAnswer(TASK_KEY);
+    const answer = (await getStudentTrainingAnswer(TASK_KEY))?.data || {};
     stepOneSaved.value = applyStepOne(answer);
     stepTwoSaved.value = applyStepTwo(answer);
     applyStepThree(answer);
diff --git a/tests/supplier-evaluation-step1.static.test.cjs b/tests/supplier-evaluation-step1.static.test.cjs
new file mode 100644
index 0000000..041a91f
--- /dev/null
+++ b/tests/supplier-evaluation-step1.static.test.cjs
@@ -0,0 +1,21 @@
+const assert = require("node:assert/strict");
+const fs = require("node:fs");
+const path = require("node:path");
+const test = require("node:test");
+
+const source = fs.readFileSync(
+  path.resolve(__dirname, "../src/views/channel/supplier.vue"),
+  "utf8",
+);
+
+test("供应渠道评估第一步首次进入不预填场景权重", () => {
+  assert.match(source, /smallBatchWeight:\s*null,\s*largeBatchWeight:\s*null/);
+  assert.doesNotMatch(source, /smallBatchWeight:\s*20,\s*largeBatchWeight:\s*35/);
+});
+
+test("供应渠道评估使用接口 data 中的校验结果和学生答案", () => {
+  assert.match(source, /const result = \(await validateSupplierEvaluationStepOne\(buildStepOnePayload\(\)\)\)\?\.data \|\| \{\};/);
+  assert.match(source, /const result = \(await validateSupplierEvaluationStepTwo\(buildStepTwoPayload\(\)\)\)\?\.data \|\| \{\};/);
+  assert.match(source, /const result = \(await validateSupplierEvaluationStepThree\(buildStepThreePayload\(\)\)\)\?\.data \|\| \{\};/);
+  assert.match(source, /const answer = \(await getStudentTrainingAnswer\(TASK_KEY\)\)\?\.data \|\| \{\};/);
+});