diff --git a/.env.production.example b/.env.production.example
index 52fd928..5f98d53 100644
--- a/.env.production.example
+++ b/.env.production.example
@@ -4,6 +4,7 @@
 DJANGO_SETTINGS_MODULE=config.settings
 DJANGO_SECRET_KEY='replace-with-at-least-50-random-characters'
 DJANGO_DEBUG=false
+DJANGO_USE_HTTPS=true
 DJANGO_ALLOWED_HOSTS=math.example.com
 
 DATABASE_URL='mysql://hulumath:replace-password@127.0.0.1:3307/hulumath'
diff --git a/.gitignore b/.gitignore
index d9f1b7b..cee49b3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -130,6 +130,8 @@ celerybeat.pid
 
 # Environments
 .env
+.env.production
+.env.local
 .venv
 .venv-production/
 env/
diff --git a/backend/config/settings.py b/backend/config/settings.py
index afeea01..8a2caeb 100644
--- a/backend/config/settings.py
+++ b/backend/config/settings.py
@@ -10,6 +10,10 @@ PROJECT_ROOT = BASE_DIR.parent
 
 SECRET_KEY = os.getenv("DJANGO_SECRET_KEY", "dev-only-change-before-production")
 DEBUG = os.getenv("DJANGO_DEBUG", "true").lower() == "true"
+USE_HTTPS = os.getenv(
+    "DJANGO_USE_HTTPS",
+    "false" if DEBUG else "true",
+).lower() == "true"
 if not DEBUG and SECRET_KEY == "dev-only-change-before-production":
     raise ImproperlyConfigured("生产环境必须设置 DJANGO_SECRET_KEY")
 ALLOWED_HOSTS = [
@@ -175,12 +179,14 @@ CSRF_COOKIE_SAMESITE = "Lax"
 SECURE_PROXY_SSL_HEADER = ("HTTP_X_FORWARDED_PROTO", "https")
 SECURE_CONTENT_TYPE_NOSNIFF = True
 X_FRAME_OPTIONS = "DENY"
-SECURE_SSL_REDIRECT = not DEBUG
-SESSION_COOKIE_SECURE = not DEBUG
-CSRF_COOKIE_SECURE = not DEBUG
-SECURE_HSTS_SECONDS = int(os.getenv("SECURE_HSTS_SECONDS", "31536000" if not DEBUG else "0"))
-SECURE_HSTS_INCLUDE_SUBDOMAINS = not DEBUG
-SECURE_HSTS_PRELOAD = not DEBUG
+SECURE_SSL_REDIRECT = USE_HTTPS
+SESSION_COOKIE_SECURE = USE_HTTPS
+CSRF_COOKIE_SECURE = USE_HTTPS
+SECURE_HSTS_SECONDS = int(
+    os.getenv("SECURE_HSTS_SECONDS", "31536000" if USE_HTTPS else "0")
+)
+SECURE_HSTS_INCLUDE_SUBDOMAINS = USE_HTTPS
+SECURE_HSTS_PRELOAD = USE_HTTPS
 
 LOGGING = {
     "version": 1,
diff --git a/docs/BAOTA_UBUNTU_FROM_ZERO.md b/docs/BAOTA_UBUNTU_FROM_ZERO.md
index 3cbb9e3..ebf91dd 100644
--- a/docs/BAOTA_UBUNTU_FROM_ZERO.md
+++ b/docs/BAOTA_UBUNTU_FROM_ZERO.md
@@ -252,6 +252,7 @@ nano .env.production
 DJANGO_SETTINGS_MODULE=config.settings
 DJANGO_SECRET_KEY='替换为 openssl 生成的密钥'
 DJANGO_DEBUG=false
+DJANGO_USE_HTTPS=true
 DJANGO_ALLOWED_HOSTS=math.example.com
 
 DATABASE_URL='mysql://hulumath:ReplaceWithStrongPassword@127.0.0.1:3307/hulumath'
@@ -278,6 +279,20 @@ chown root:root .env.production
 chmod 600 .env.production
 ```
 
+仅使用 IP、尚未配置域名和证书时，可临时改为：
+
+```dotenv
+DJANGO_USE_HTTPS=false
+DJANGO_ALLOWED_HOSTS=117.72.28.96,127.0.0.1,localhost
+CORS_ALLOWED_ORIGINS=http://117.72.28.96
+CSRF_TRUSTED_ORIGINS=http://117.72.28.96
+SECURE_HSTS_SECONDS=0
+DEPLOY_HEALTH_HOST=117.72.28.96
+```
+
+绑定域名并申请 SSL 后，必须把 `DJANGO_USE_HTTPS` 改回 `true`，并将
+Allowed Hosts、CORS、CSRF 和健康检查 Host 全部替换为正式域名。
+
 ## 9. 在宝塔创建网站
 
 宝塔 `网站` → `添加站点`：
diff --git a/scripts/deploy_production.sh b/scripts/deploy_production.sh
index dd8847d..71cbb3a 100755
--- a/scripts/deploy_production.sh
+++ b/scripts/deploy_production.sh
@@ -231,7 +231,12 @@ if [ -d "$PROJECT_DIR/backend/staticfiles" ]; then
   $SUDO chown -R "$DEPLOY_OWNER" "$PROJECT_DIR/backend/staticfiles"
 fi
 cd "$PROJECT_DIR/backend"
-"$VENV_DIR/bin/python" manage.py check --deploy --fail-level WARNING --database default
+if [ "${DJANGO_USE_HTTPS:-true}" = "true" ]; then
+  "$VENV_DIR/bin/python" manage.py check --deploy --fail-level WARNING --database default
+else
+  log "临时 HTTP 模式：部署安全检查只阻断 ERROR；绑定域名后应启用 HTTPS"
+  "$VENV_DIR/bin/python" manage.py check --deploy --fail-level ERROR --database default
+fi
 "$VENV_DIR/bin/python" manage.py check_mysql
 "$VENV_DIR/bin/python" manage.py migrate --noinput
 "$VENV_DIR/bin/python" manage.py collectstatic --noinput