From 2f6846d2a5119fa69233bccb3c2bc96cc6efd9f4 Mon Sep 17 00:00:00 2001
From: ustcfury <94168407+ustcfury@users.noreply.github.com>
Date: Thu, 6 Nov 2025 10:21:35 +0800
Subject: [PATCH] fix: Select underlined height (#55607)

Co-authored-by: furyzhao <furyzhao@tencent.com>
---
 components/select/style/variants.ts | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/select/style/variants.ts b/components/select/style/variants.ts
index a653710a0f..a7b942568e 100644
--- a/components/select/style/variants.ts
+++ b/components/select/style/variants.ts
@@ -242,20 +242,20 @@ const genBaseUnderlinedStyle = (
 
   return {
     [`&:not(${componentCls}-customize-input) ${componentCls}-selector`]: {
-      borderWidth: `0 0 ${unit(token.lineWidth)} 0`,
-      borderStyle: `none none ${token.lineType} none`,
-      borderColor: options.borderColor,
+      borderWidth: `${unit(token.lineWidth)} 0`,
+      borderStyle: `${token.lineType} none`,
+      borderColor: `transparent transparent ${options.borderColor} transparent`,
       background: token.selectorBg,
       borderRadius: 0,
     },
     [`&:not(${componentCls}-disabled):not(${componentCls}-customize-input):not(${antCls}-pagination-size-changer)`]:
       {
         [`&:hover ${componentCls}-selector`]: {
-          borderColor: options.hoverBorderHover,
+          borderColor: `transparent transparent ${options.hoverBorderHover} transparent`,
         },
 
         [`${componentCls}-focused& ${componentCls}-selector`]: {
-          borderColor: options.activeBorderColor,
+          borderColor: `transparent transparent ${options.activeBorderColor} transparent`,
           outline: 0,
         },
         [`${componentCls}-prefix`]: {