From 5f9566e26df38450fc85388a272546a6b54f2e18 Mon Sep 17 00:00:00 2001
From: wangziqi <wangziqi@gongxue100.com>
Date: Fri, 7 Aug 2026 16:38:09 +0800
Subject: [PATCH] =?UTF-8?q?fix(server):=20=E4=BF=AE=E6=AD=A3=E6=A1=A3?=
 =?UTF-8?q?=E6=A1=88=E6=88=90=E7=BB=A9=E8=B6=8B=E5=8A=BF=E5=9B=BE=20y=20?=
 =?UTF-8?q?=E8=BD=B4=E5=9D=90=E6=A0=87=E5=AD=97=E7=AC=A6=E4=B8=B2=E6=8B=BC?=
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---
 .../server/src/archive/archive-report.exam.spec.ts | 14 ++++++++++++++
 apps/server/src/archive/archive-report.exam.ts     |  2 +-
 2 files changed, 15 insertions(+), 1 deletion(-)
 create mode 100644 apps/server/src/archive/archive-report.exam.spec.ts

diff --git a/apps/server/src/archive/archive-report.exam.spec.ts b/apps/server/src/archive/archive-report.exam.spec.ts
new file mode 100644
index 0000000..8ae3c69
--- /dev/null
+++ b/apps/server/src/archive/archive-report.exam.spec.ts
@@ -0,0 +1,14 @@
+import { renderScoreTrendChart } from './archive-report.exam';
+
+describe('renderScoreTrendChart', () => {
+  it('places the first y-axis label 4px below the top gridline using numeric addition', () => {
+    const html = renderScoreTrendChart([
+      { examType: '文化', score: 60, examDate: '2026-01-01' },
+      { examType: '文化', score: 90, examDate: '2026-02-01' },
+      { examType: '文化', score: 70, examDate: '2026-03-01' },
+    ] as never);
+
+    expect(html).toContain('y="154.0"');
+    expect(html).not.toContain('y="150.04"');
+  });
+});
diff --git a/apps/server/src/archive/archive-report.exam.ts b/apps/server/src/archive/archive-report.exam.ts
index f099c5d..47da985 100644
--- a/apps/server/src/archive/archive-report.exam.ts
+++ b/apps/server/src/archive/archive-report.exam.ts
@@ -146,7 +146,7 @@ export function renderScoreTrendChart(exams: ExamScore[]): string {
   for (let i = 0; i <= ySteps; i++) {
     const val = minScore + (scoreRange * i) / ySteps;
     const y = scaleY(val);
-    yLabels += `<text x="${pad.left - 6}" y="${y.toFixed(1) + 4}" text-anchor="end" fill="#667085" font-size="10">${val.toFixed(0)}</text>`;
+    yLabels += `<text x="${pad.left - 6}" y="${(y + 4).toFixed(1)}" text-anchor="end" fill="#667085" font-size="10">${val.toFixed(0)}</text>`;
     if (i > 0) {
       yLabels += `<line x1="${pad.left}" y1="${y.toFixed(1)}" x2="${w - pad.right}" y2="${y.toFixed(1)}" stroke="#eaf3fd" stroke-width="1"/>`;
     }