From 666ac4f6ac8247f9849dca131825c59f8dc4ce83 Mon Sep 17 00:00:00 2001
From: doublex001 <16157008+doublex001@user.noreply.gitee.com>
Date: Tue, 15 Sep 2026 13:09:57 +0800
Subject: [PATCH] =?UTF-8?q?fix(ui):=20=E6=B3=A8=E5=86=8C=E6=B5=81=E7=A8=8B?=
 =?UTF-8?q?=E4=B8=BB=E6=8C=89=E9=92=AE=E5=BA=95=E8=89=B2=E6=94=B9=E7=94=A8?=
 =?UTF-8?q?=20primaryBtn=EF=BC=8C=E6=BB=A1=E8=B6=B3=20WCAG=20AA?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

PrimaryButton 原用 colors.primary(#2C83FD) 作白字底，对比度仅 3.64:1，不满足
WCAG AA 的 4.5:1 要求。改用 colors.primaryBtn(#1F6FDB)，对比度 4.82:1 达标，
同时符合 AGENTS.md 配色规范「primary 不作白字按钮底」。

副作用：整条注册流程按钮视觉变深，如已对外出图需重新确认。
---
 components/onboarding/ui/PrimaryButton.tsx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/components/onboarding/ui/PrimaryButton.tsx b/components/onboarding/ui/PrimaryButton.tsx
index 50fc3f1..d055c70 100644
--- a/components/onboarding/ui/PrimaryButton.tsx
+++ b/components/onboarding/ui/PrimaryButton.tsx
@@ -23,7 +23,9 @@ export function PrimaryButton({ label, active = true, onPress, loading = false }
 
 const styles = StyleSheet.create({
   btn: { height: 50, borderRadius: 12, alignItems: 'center', justifyContent: 'center' },
-  btnActive: { backgroundColor: colors.primary },
+  // 按钮底色用 primaryBtn 而非 primary：白字对比 4.8:1 过 WCAG AA，
+  // primary 作白字底只有 3.64:1，不满足 AA（见 AGENTS.md 配色规范）
+  btnActive: { backgroundColor: colors.primaryBtn },
   btnDisabled: { backgroundColor: colors.textDisabled },
   btnText: { fontSize: 17, fontWeight: '700', color: colors.textInverse },
 });