diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6a0a9a9..7d392a7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # CHANGELOG
 
+## v1.5.1 (2026-06-08)
+- **JS 对齐 & 智能文档**:
+    - 将所有注册到 `jsmod` 的方法名统一为 PascalCase。
+    - **可选参数优化**: 将 `Open` 的 `password` 和 `Save` 的 `filename` 改为指针类型。配合最新的 `go/js` 引擎，生成的 `.d.ts` 定义将正确提示为可选参数 `?`，极大优化了 AI 编码体验。
+
 ## v1.1.0 (2026-05-17)
 - **PDF 语义重构**: 引入全局语义分析引擎。
     - **无缝流**: 彻底移除分页干扰（移除 `---` 和 `Page X` 标记），实现跨页内容自然合并。
diff --git a/go.mod b/go.mod
index c7303a0..1d1f0df 100644
--- a/go.mod
+++ b/go.mod
@@ -28,10 +28,10 @@ require (
 	github.com/xuri/nfp v0.0.2-0.20250530014748-2ddeb826f9a9 // indirect
 	go.uber.org/multierr v1.10.0 // indirect
 	go.uber.org/zap v1.26.0 // indirect
-	golang.org/x/crypto v0.51.0 // indirect
+	golang.org/x/crypto v0.52.0 // indirect
 	golang.org/x/image v0.40.0 // indirect
 	golang.org/x/net v0.54.0 // indirect
-	golang.org/x/sys v0.44.0 // indirect
+	golang.org/x/sys v0.45.0 // indirect
 	golang.org/x/text v0.37.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
diff --git a/go.sum b/go.sum
index 6d89068..4acc290 100644
--- a/go.sum
+++ b/go.sum
@@ -58,14 +58,12 @@ go.uber.org/multierr v1.10.0 h1:S0h4aNzvfcFsC3dRF1jLoaov7oRaKqRGC/pUEJ2yvPQ=
 go.uber.org/multierr v1.10.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
 go.uber.org/zap v1.26.0 h1:sI7k6L95XOKS281NhVKOFCUNIvv9e0w4BF8N3u+tCRo=
 go.uber.org/zap v1.26.0/go.mod h1:dtElttAiwGvoJ/vj4IwHBS/gXsEu/pZ50mUIRWuG0so=
-golang.org/x/crypto v0.51.0 h1:IBPXwPfKxY7cWQZ38ZCIRPI50YLeevDLlLnyC5wRGTI=
-golang.org/x/crypto v0.51.0/go.mod h1:8AdwkbraGNABw2kOX6YFPs3WM22XqI4EXEd8g+x7Oc8=
+golang.org/x/crypto v0.52.0 h1:RMs7fP2rXdep0CftQlK8Uf+kibLm7qkCcradZWYz988=
 golang.org/x/image v0.40.0 h1:Tw4GyDXMo+daZN1znreBRC3VayR1aLFUyUEOLUdW1a8=
 golang.org/x/image v0.40.0/go.mod h1:uIc348UZMSvS5Z65CVZ7iDPaNobNFEPeJ4kbqTOszmA=
 golang.org/x/net v0.54.0 h1:2zJIZAxAHV/OHCDTCOHAYehQzLfSXuf/5SoL/Dv6w/w=
 golang.org/x/net v0.54.0/go.mod h1:Sj4oj8jK6XmHpBZU/zWHw3BV3abl4Kvi+Ut7cQcY+cQ=
-golang.org/x/sys v0.44.0 h1:ildZl3J4uzeKP07r2F++Op7E9B29JRUy+a27EibtBTQ=
-golang.org/x/sys v0.44.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
+golang.org/x/sys v0.45.0 h1:dO4czNzziLiiXplLQgBCEpCvXQ3dnkn0SdaZSYdQ+FY=
 golang.org/x/text v0.37.0 h1:Cqjiwd9eSg8e0QAkyCaQTNHFIIzWtidPahFWR83rTrc=
 golang.org/x/text v0.37.0/go.mod h1:a5sjxXGs9hsn/AJVwuElvCAo9v8QYLzvavO5z2PiM38=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
diff --git a/js_export.go b/js_export.go
index b36d264..f78151c 100644
--- a/js_export.go
+++ b/js_export.go
@@ -9,28 +9,33 @@ import (
 
 func init() {
 	jsmod.Register("document", map[string]any{
-		"open": func(ctx context.Context, filename string, password ...string) (*jsDocument, error) {
+		"Open": func(ctx context.Context, filename string, password *string) (*jsDocument, error) {
 			p, err := file.VerifyPathForSafeMode(ctx, filename)
 			if err != nil {
 				return nil, err
 			}
-			doc, err := Open(p, password...)
+			var doc Document
+			if password != nil {
+				doc, err = Open(p, *password)
+			} else {
+				doc, err = Open(p)
+			}
 			if err != nil {
 				return nil, err
 			}
 			return &jsDocument{ctx: ctx, d: doc}, nil
 		},
-		"create": func(ctx context.Context, ext string) (*jsDocument, error) {
+		"Create": func(ctx context.Context, ext string) (*jsDocument, error) {
 			doc, err := Create(ext)
 			if err != nil {
 				return nil, err
 			}
 			return &jsDocument{ctx: ctx, d: doc}, nil
 		},
-		"newExcel": func(ctx context.Context) *jsDocument {
+		"NewExcel": func(ctx context.Context) *jsDocument {
 			return &jsDocument{ctx: ctx, d: NewExcel()}
 		},
-		"newGraph": func(ctx context.Context) *jsDocument {
+		"NewGraph": func(ctx context.Context) *jsDocument {
 			return &jsDocument{ctx: ctx, d: NewGraph()}
 		},
 	})
@@ -44,10 +49,10 @@ type jsDocument struct {
 func (j *jsDocument) ToJSON() string     { return j.d.ToJSON() }
 func (j *jsDocument) ToMarkdown() string { return j.d.ToMarkdown() }
 
-func (j *jsDocument) Save(filename ...string) error {
+func (j *jsDocument) Save(filename *string) error {
 	var targetPath string
-	if len(filename) > 0 {
-		p, err := file.VerifyPathForSafeMode(j.ctx, filename[0])
+	if filename != nil && *filename != "" {
+		p, err := file.VerifyPathForSafeMode(j.ctx, *filename)
 		if err != nil {
 			return err
 		}