diff --git a/apps/web/src/api/viral-video/types.ts b/apps/web/src/api/viral-video/types.ts
index c62678cd8..92a791ec1 100644
--- a/apps/web/src/api/viral-video/types.ts
+++ b/apps/web/src/api/viral-video/types.ts
@@ -287,6 +287,8 @@ export interface ViralVideoModel {
   supports_audio: boolean
   supported_resolutions: string[]
   max_duration: number
+  /** 计费模式（可选）：per_second / per_video 等，后端预留字段 */
+  billing_mode?: string
   is_default?: boolean
 }
 
diff --git a/apps/web/src/pages/viral-video/ViralVideoPage.css b/apps/web/src/pages/viral-video/ViralVideoPage.css
index 6dc6ece13..aa152c3ca 100644
--- a/apps/web/src/pages/viral-video/ViralVideoPage.css
+++ b/apps/web/src/pages/viral-video/ViralVideoPage.css
@@ -1002,6 +1002,11 @@
 .vv-form-row {
   margin-bottom: 10px;
 }
+.vv-form-hint {
+  font-size: 12px;
+  color: #9ca3af;
+  line-height: 1.4;
+}
 @media (max-width: 500px) {
   .vv-form-grid {
     grid-template-columns: 1fr;
diff --git a/apps/web/src/pages/viral-video/ViralVideoPage.tsx b/apps/web/src/pages/viral-video/ViralVideoPage.tsx
index d81a84773..d9c76f48f 100644
--- a/apps/web/src/pages/viral-video/ViralVideoPage.tsx
+++ b/apps/web/src/pages/viral-video/ViralVideoPage.tsx
@@ -219,11 +219,11 @@ const RATIOS = [
   { v: "16:9", label: "16:9 横屏（B站/YouTube）" },
   { v: "1:1", label: "1:1 方形（小红书）" },
 ]
-/** 兜底模型列表（接口未返回时使用，字段与 ViralVideoModel 对齐） */
+/** 兜底模型列表（接口未返回时使用，字段与 ViralVideoModel 对齐；后端返回后自动覆盖） */
 const FALLBACK_VIDEO_MODELS: ViralVideoModel[] = [
   {
     key: "seedance-2.5",
-    display_name: "Seedance 2.5（最新模型）",
+    display_name: "Seedance 2.5 — 最新最强",
     supports_audio: true,
     supported_resolutions: ["480p", "720p", "1080p"],
     max_duration: 30,
@@ -231,7 +231,28 @@ const FALLBACK_VIDEO_MODELS: ViralVideoModel[] = [
   },
   {
     key: "seedance-2.0",
-    display_name: "Seedance 2.0 完整版（正式投放首选）",
+    display_name: "Seedance 2.0 — 正式首选",
+    supports_audio: true,
+    supported_resolutions: ["480p", "720p", "1080p"],
+    max_duration: 15,
+  },
+  {
+    key: "seedance-2.0-fast",
+    display_name: "Seedance 2.0 Fast — 快速测试 🔇",
+    supports_audio: false,
+    supported_resolutions: ["480p", "720p"],
+    max_duration: 15,
+  },
+  {
+    key: "seedance-2.0-mini",
+    display_name: "Seedance 2.0 Mini — 低成本 💰",
+    supports_audio: true,
+    supported_resolutions: ["480p", "720p"],
+    max_duration: 15,
+  },
+  {
+    key: "wan-3.0",
+    display_name: "Wan 3.0 — 通义万相全能",
     supports_audio: true,
     supported_resolutions: ["480p", "720p", "1080p"],
     max_duration: 15,
@@ -2359,9 +2380,17 @@ const ViralVideoPage: React.FC = () => {
                     }}
                     options={videoModels.map((m) => ({
                       value: m.key,
-                      label: m.supports_audio ? m.display_name : `${m.display_name} 🔇无声`,
+                      label: m.display_name,
                     }))}
                   />
+                  {(() => {
+                    const curM = videoModels.find((m) => m.key === task.videoModel)
+                    return curM && !curM.supports_audio ? (
+                      <div className="vv-form-hint" style={{ marginTop: 4 }}>
+                        🔇 该模型不支持自动配音，视频为无声
+                      </div>
+                    ) : null
+                  })()}
                 </div>
                 <div className="vv-form-row">
                   <label className="vv-label">清晰度</label>