diff --git a/07-start-frontend.sh b/07-start-frontend.sh
index 06a7e41..7cb5bcd 100755
--- a/07-start-frontend.sh
+++ b/07-start-frontend.sh
@@ -125,6 +125,7 @@ _start_fe() {
 
   info "启动 ${BOLD}$name${NC} ..."
   if [[ "$name" == "pc" ]]; then
+    pc_ensure_wasm_assets
     pc_export_vite_backend_env
     pc_print_vite_backend_env
     pc_check_nginx_gateway
diff --git a/common.sh b/common.sh
index 3149831..d3deec4 100755
--- a/common.sh
+++ b/common.sh
@@ -311,11 +311,37 @@ pc_check_wasm_assets() {
   local asset url ct
   for asset in openIM.wasm sql-wasm.wasm wasm_exec.js; do
     url="${origin}/${asset}"
-    if curl -fsS --max-time 5 "$url" >/dev/null 2>&1; then
-      ct=$(curl -fsSI --max-time 5 "$url" 2>/dev/null | awk 'BEGIN{IGNORECASE=1} /^content-type:/ {sub(/\r$/, ""); print $0; exit}' || true)
+    ct=$(curl -fsSI --max-time 5 "$url" 2>/dev/null | awk 'BEGIN{IGNORECASE=1} /^content-type:/ {sub(/\r$/, ""); print $0; exit}' || true)
+    if [[ -n "$ct" ]] || curl -fsS --max-time 5 -r 0-0 "$url" >/dev/null 2>&1; then
       success "  PC SDK 资源可达: ${url}${ct:+ (${ct#*: })}"
     else
       warn "  PC SDK 资源不可达: ${url}（SDK login 可能卡住且不会发起 /msg_gateway WebSocket）"
     fi
   done
 }
+
+pc_ensure_wasm_assets() {
+  local public_dir="$ROOT_DIR/pc/public"
+  local assets_dir="$ROOT_DIR/pc/node_modules/@openim/wasm-client-sdk/assets"
+  local asset src dst size
+
+  for asset in openIM.wasm sql-wasm.wasm wasm_exec.js; do
+    src="$assets_dir/$asset"
+    dst="$public_dir/$asset"
+
+    if [[ -s "$dst" ]]; then
+      continue
+    fi
+
+    if [[ ! -s "$src" ]]; then
+      warn "  PC SDK 资源缺失且无法自动补齐: $dst（未找到 $src）"
+      continue
+    fi
+
+    mkdir -p "$public_dir"
+    cp "$src" "$dst"
+    chmod 0644 "$dst" 2>/dev/null || true
+    size=$(wc -c < "$dst" 2>/dev/null | tr -d ' ' || true)
+    success "  已补齐 PC SDK 资源: $dst${size:+ (${size} bytes)}"
+  done
+}