diff --git a/homebrew/brew-upgrade-manager.sh b/homebrew/brew-upgrade-manager.sh
index de1b45f..f51c3fc 100644
--- a/homebrew/brew-upgrade-manager.sh
+++ b/homebrew/brew-upgrade-manager.sh
@@ -579,7 +579,8 @@ colorize_brew_tty_stream() {
     # `script` 将 brew 的输出传递给本函数时，普通行以 CRLF 结尾，进度条则以
     # CR 重绘。按行的 Bash read 无法同时处理两者，会等到下一个换行才刷新进度。
     # 这个小型 Perl 流式过滤器会立即透传 CR 更新，仅对完整的普通行重复使用
-    # 现有的语义配色规则。
+    # 现有的语义配色规则。script(1) 读取控制终端时会临时关闭 ONLCR，
+    # 因此完整文本行必须显式输出 CRLF，不能依赖终端将 LF 自动转换为回车换行。
     HB_STREAM_RED="$RED" \
         HB_STREAM_GREEN="$GREEN" \
         HB_STREAM_YELLOW="$YELLOW" \
@@ -594,6 +595,7 @@ use warnings;
 use utf8;
 
 $| = 1;
+my $line_ending = "\r\n";
 
 my %color = map { $_ => ($ENV{"HB_STREAM_" . uc($_)} // "") }
     qw(red green yellow blue magenta cyan bold nc);
@@ -614,7 +616,7 @@ sub print_version_transition {
     print $color{bold}, $color{cyan}, $package, $color{nc} if length $package;
     print $color{yellow}, $old_version, $color{nc}, " ";
     print $color{blue}, $arrow, $color{nc}, " ";
-    print $color{bold}, $color{green}, $new_version, $color{nc}, $suffix, "\n";
+    print $color{bold}, $color{green}, $new_version, $color{nc}, $suffix, $line_ending;
     return 1;
 }
 
@@ -625,15 +627,15 @@ sub print_heading {
     if ($text =~ /^(Upgrading|Installing|Reinstalling|Fetching|Downloading|Pouring|Would)\s+(.+)$/) {
         print $color{blue}, "==>", $color{nc}, " ";
         print $color{cyan}, $1, $color{nc}, " ";
-        print $color{bold}, $color{green}, $2, $color{nc}, "\n";
+        print $color{bold}, $color{green}, $2, $color{nc}, $line_ending;
     } elsif ($text =~ /^(?:Upgraded\s|Installed\s|Successfully\s)/) {
-        print $color{blue}, "==>", $color{nc}, " ", $color{bold}, $color{green}, $text, $color{nc}, "\n";
+        print $color{blue}, "==>", $color{nc}, " ", $color{bold}, $color{green}, $text, $color{nc}, $line_ending;
     } elsif ($text =~ /^(?:Outdated\s|Disabled\s|Warning)/) {
-        print $color{blue}, "==>", $color{nc}, " ", $color{yellow}, $text, $color{nc}, "\n";
+        print $color{blue}, "==>", $color{nc}, " ", $color{yellow}, $text, $color{nc}, $line_ending;
     } elsif ($text =~ /^(?:Formulae|Casks|New Formulae|New Casks|Caveats|Summary)$/) {
-        print $color{blue}, "==>", $color{nc}, " ", $color{bold}, $color{magenta}, $text, $color{nc}, "\n";
+        print $color{blue}, "==>", $color{nc}, " ", $color{bold}, $color{magenta}, $text, $color{nc}, $line_ending;
     } else {
-        print $color{blue}, "==>", $color{nc}, " ", $color{cyan}, $text, $color{nc}, "\n";
+        print $color{blue}, "==>", $color{nc}, " ", $color{cyan}, $text, $color{nc}, $line_ending;
     }
 }
 
@@ -652,20 +654,20 @@ sub colorize_line {
     if ($line =~ /^==> /) {
         print_heading($line);
     } elsif ($line =~ /^(?:Warning:|warning:)/) {
-        print $color{yellow}, $line, $color{nc}, "\n";
+        print $color{yellow}, $line, $color{nc}, $line_ending;
     } elsif ($line =~ /^(?:Error:|error:|Failed:|failed:)/) {
-        print $color{red}, $line, $color{nc}, "\n";
+        print $color{red}, $line, $color{nc}, $line_ending;
     } elsif ($line =~ /^Removing:/) {
-        print $color{yellow}, $line, $color{nc}, "\n";
+        print $color{yellow}, $line, $color{nc}, $line_ending;
     } elsif ($line =~ /^(?:✔︎ |✔ |🍺 )/ ||
              $line =~ /was successfully upgraded!|successfully installed!|All dependencies satisfied\./) {
-        print $color{green}, $line, $color{nc}, "\n";
+        print $color{green}, $line, $color{nc}, $line_ending;
     } elsif ($line =~ /^(?:Already up-to-date|Updated Homebrew |Updated .*tap|Successfully rebased |Pruned |This operation has freed )/) {
-        print $color{green}, $line, $color{nc}, "\n";
+        print $color{green}, $line, $color{nc}, $line_ending;
     } elsif ($line =~ /^  (?:Downloaded|Verified) /) {
-        print $color{green}, $line, $color{nc}, "\n";
+        print $color{green}, $line, $color{nc}, $line_ending;
     } else {
-        print $line, "\n";
+        print $line, $line_ending;
     }
 }