diff --git a/src/components/creation-home/ClientDownloadEntry.tsx b/src/components/creation-home/ClientDownloadEntry.tsx
index c85742755..6d228ec92 100644
--- a/src/components/creation-home/ClientDownloadEntry.tsx
+++ b/src/components/creation-home/ClientDownloadEntry.tsx
@@ -1,4 +1,8 @@
-import { getPlatformActionButtonClassName } from '@genarrative/shared/components';
+import {
+  getPlatformActionButtonClassName,
+  type PlatformActionButtonSize,
+  type PlatformActionButtonTone,
+} from '@genarrative/shared/components';
 import { Download, Monitor } from 'lucide-react';
 import { useEffect, useState } from 'react';
 
@@ -10,6 +14,16 @@ import { UnifiedModal } from '../common/UnifiedModal';
 
 const DOWNLOAD_ERROR = '暂时无法获取最新版本，请稍后重试';
 
+type ClientDownloadEntryProps = {
+  /** 按钮文案，默认「下载客户端」。 */
+  label?: string;
+  tone?: PlatformActionButtonTone;
+  size?: PlatformActionButtonSize;
+  /** 窄屏只留图标：平台顶栏默认开启，页面级引导入口传 false 保留完整文案。 */
+  iconOnlyOnNarrowScreens?: boolean;
+  className?: string;
+};
+
 type DownloadState =
   | { status: 'loading' }
   | { status: 'ready'; release: ClientDownloadResponse }
@@ -22,7 +36,13 @@ function downloadLabel(download: ClientDownloadResponse['downloads'][number]) {
   return `macOS（${download.architecture === 'aarch64' ? 'Apple Silicon' : 'Intel'}）`;
 }
 
-export function ClientDownloadEntry() {
+export function ClientDownloadEntry({
+  label = '下载客户端',
+  tone = 'secondary',
+  size = 'sm',
+  iconOnlyOnNarrowScreens = true,
+  className,
+}: ClientDownloadEntryProps = {}) {
   const [open, setOpen] = useState(false);
   const [attempt, setAttempt] = useState(0);
   const [state, setState] = useState<DownloadState>({ status: 'loading' });
@@ -72,19 +92,31 @@ export function ClientDownloadEntry() {
   return (
     <>
       <PlatformActionButton
-        tone="secondary"
-        size="sm"
+        tone={tone}
+        size={size}
         shape="pill"
-        aria-label="下载客户端"
-        title="下载客户端"
-        className="min-h-11 shrink-0 gap-0 whitespace-nowrap max-sm:h-11 max-sm:w-11 max-sm:px-0 sm:gap-2 sm:px-4"
+        aria-label={label}
+        title={label}
+        className={[
+          'shrink-0 whitespace-nowrap',
+          iconOnlyOnNarrowScreens
+            ? 'min-h-11 gap-0 max-sm:h-11 max-sm:w-11 max-sm:px-0 sm:gap-2 sm:px-4'
+            : 'gap-2',
+          className,
+        ]
+          .filter(Boolean)
+          .join(' ')}
         onClick={() => {
           setState({ status: 'loading' });
           setOpen(true);
         }}
       >
         <Download className="h-4 w-4 shrink-0" aria-hidden="true" />
-        <span className="hidden sm:inline">下载客户端</span>
+        <span
+          className={iconOnlyOnNarrowScreens ? 'hidden sm:inline' : undefined}
+        >
+          {label}
+        </span>
       </PlatformActionButton>
       <UnifiedModal
         open={open}
diff --git a/src/components/game-distribution/GamePublishClientGuide.tsx b/src/components/game-distribution/GamePublishClientGuide.tsx
new file mode 100644
index 000000000..4894d7232
--- /dev/null
+++ b/src/components/game-distribution/GamePublishClientGuide.tsx
@@ -0,0 +1,35 @@
+import type { HTMLAttributes } from 'react';
+
+import { ClientDownloadEntry } from '../creation-home/ClientDownloadEntry';
+
+type GamePublishClientGuideProps = HTMLAttributes<HTMLElement>;
+
+/** 悬浮引导卡片：把还没有游戏包的作者引到客户端。 */
+export function GamePublishClientGuide({
+  className,
+  ...props
+}: GamePublishClientGuideProps) {
+  return (
+    <section
+      className={`flex w-fit max-w-full flex-none flex-col items-center gap-3
+        rounded-2xl border px-[1.15rem] py-[0.9rem] text-center
+        [background:linear-gradient(135deg,color-mix(in_srgb,var(--platform-action-accent,#c7653d)_11%,var(--platform-panel-fill))_0%,color-mix(in_srgb,var(--platform-action-accent,#c7653d)_4%,var(--platform-panel-fill))_100%)]
+        border-[color-mix(in_srgb,var(--platform-action-accent,#c7653d)_26%,transparent)]
+        [box-shadow:0_0.55rem_1.1rem_color-mix(in_srgb,var(--platform-action-accent,#c7653d)_12%,transparent)]
+        ${className ?? ''}`}
+      {...props}
+    >
+      <strong className="text-[0.82rem] text-(--platform-text-strong)">
+        还没有游戏包？
+      </strong>
+      <ClientDownloadEntry
+        label="下载客户端制作游戏"
+        tone="accentSoft"
+        size="sm"
+        iconOnlyOnNarrowScreens={false}
+      />
+    </section>
+  );
+}
+
+export default GamePublishClientGuide;
diff --git a/src/components/game-distribution/GamePublishPage.tsx b/src/components/game-distribution/GamePublishPage.tsx
index 514c098d5..43ff09833 100644
--- a/src/components/game-distribution/GamePublishPage.tsx
+++ b/src/components/game-distribution/GamePublishPage.tsx
@@ -29,6 +29,7 @@ import {
   resolveGamePublishImagePreview,
   uploadGamePublishImageAsset,
 } from './gamePublishAssets';
+import { GamePublishClientGuide } from './GamePublishClientGuide';
 import {
   clearPublishDraft,
   type GamePublishDraft,
@@ -711,12 +712,12 @@ export function GamePublishPage({
       <button type="button" className="game-back-button" onClick={onBack}>
         <ArrowLeft /> 返回
       </button>
-      <div className="game-toolbar">
-        <div className="game-toolbar__title">
+      <div className="game-toolbar [flex-wrap:nowrap] max-[720px]:[flex-wrap:wrap]">
+        <div className="game-toolbar__title [min-width:0]">
           <span className="game-eyebrow">
             {updateGameId ? '发布新版本' : '发布游戏'}
           </span>
-          <h2>
+          <h2 className="[white-space:nowrap] max-[720px]:[white-space:normal]">
             {updateGameId
               ? updateContext
                 ? `为《${updateContext.title}》发布 v${updateContext.versionNumber + 1}`
@@ -724,6 +725,9 @@ export function GamePublishPage({
               : '上传可在线游玩的网页游戏'}
           </h2>
         </div>
+        {!updateGameId ? (
+          <GamePublishClientGuide className="ml-auto max-[720px]:ml-0" />
+        ) : null}
       </div>
 
       {error ? (