diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md
index ad19df3..e9e84d7 100644
--- a/.github/copilot-instructions.md
+++ b/.github/copilot-instructions.md
@@ -17,7 +17,7 @@
 
 # Output Template (请严格遵循此格式)
 
-请完全按照以下 Markdown 结构生成回复：
+请完全按照以下 Markdown 结构，生成GitHub Comment：
 
 # 🛡️ 代码审查报告 (AI Code Review)
 
diff --git a/README.md b/README.md
index 3bfded5..1772020 100644
--- a/README.md
+++ b/README.md
@@ -87,6 +87,13 @@ systemctl enable oucshell.service
                     <br />
                     <sub><b>Yaosanqi137</b></sub>
                 </a>
+            </td>
+            <td align="center">
+                <a href="https://github.com/Howard-aile">
+                    <img src="https://avatars.githubusercontent.com/u/156976283?v=4" width="100;" alt="Howard-aile"/>
+                    <br />
+                    <sub><b>Howard-aile</b></sub>
+                </a>
             </td>
 		</tr>
 	<tbody>
diff --git a/src/elec_monitor.sh b/src/elec_monitor.sh
old mode 100644
new mode 100755
diff --git a/src/internet_monitor.sh b/src/internet_monitor.sh
old mode 100644
new mode 100755
index 6d390b0..034807c
--- a/src/internet_monitor.sh
+++ b/src/internet_monitor.sh
@@ -59,6 +59,22 @@ $content"
     echo "$mail_data" | curl --silent --ssl-reqd --url "$curl_url" --user "$smtp_user:$smtp_pass" --mail-from "$smtp_user" --mail-rcpt "$target_email" --upload-file -
 }
 
+# 兼容 macOS (BSD date) 与 Linux (GNU date) 计算距离下个月1号的天数
+days_until_next_month() {
+    local now_ts next_month_ts
+    now_ts=$(date +%s)
+
+    if date -v1d -v+1m +%s >/dev/null 2>&1; then
+        # macOS/BSD date
+        next_month_ts=$(date -v+1m -v1d +%s)
+    else
+        # GNU date
+        next_month_ts=$(date -d "$(date +%Y-%m-01) +1 month" +%s)
+    fi
+
+    echo $(( (next_month_ts - now_ts) / 86400 ))
+}
+
 # 西海岸网费检查
 check_xha_net() {
     local sno=$(get_val "Internet.xha" "StudentID")
@@ -121,10 +137,8 @@ check_xha_net() {
         else
             # 4.2 如果配置了日期限制，检查是否接近月底
             # 计算距离下个月1号还有几天
-            local next_month_ts=$(date -d "$(date +%Y-%m-01) +1 month" +%s)
-            local now_ts=$(date +%s)
-            local diff_sec=$((next_month_ts - now_ts))
-            local diff_days=$((diff_sec / 86400))
+            local diff_days
+            diff_days=$(days_until_next_month)
 
             echo "距离月底结算还有: ${diff_days} 天 (配置阈值: ${day_limit} 天)"
 
@@ -168,4 +182,4 @@ case "$CAMPUS" in
     *)
         echo "未知的校区配置: $CAMPUS"
         ;;
-esac
\ No newline at end of file
+esac