Chore: remove promotional copy and home-training wording

client/src/pages/Dashboard.tsx

@@ -67,7 +67,7 @@ export default function Dashboard() {
         <div className="flex gap-2">
           <Button data-testid="dashboard-training-button" onClick={() => setLocation("/training")} className="gap-2">
             <Target className="h-4 w-4" />
-            开始训练
+            训练计划
           </Button>
           <Button variant="outline" onClick={() => setLocation("/analysis")} className="gap-2">
             <Video className="h-4 w-4" />
@@ -220,7 +220,7 @@ export default function Dashboard() {
               <div className="h-[200px] flex items-center justify-center text-muted-foreground text-sm">
                 <div className="text-center">
                   <Video className="h-8 w-8 mx-auto mb-2 opacity-30" />
-                  <p>上传训练视频开始AI分析</p>
+                  <p>上传训练视频后可查看分析结果</p>
                 </div>
               </div>
             )}
@@ -231,7 +231,7 @@ export default function Dashboard() {
       {/* Quick actions */}
       <Card className="border-0 shadow-sm">
         <CardHeader className="pb-2">
-          <CardTitle className="text-base font-semibold">快速开始</CardTitle>
+          <CardTitle className="text-base font-semibold">常用入口</CardTitle>
         </CardHeader>
         <CardContent>
           <div className="grid grid-cols-1 sm:grid-cols-3 gap-3">
@@ -244,7 +244,7 @@ export default function Dashboard() {
               </div>
               <div>
                 <p className="font-medium text-sm">生成训练计划</p>
-                <p className="text-xs text-muted-foreground">AI定制个人训练方案</p>
+                <p className="text-xs text-muted-foreground">按当前设置生成训练安排</p>
               </div>
             </button>
             <button
@@ -256,7 +256,7 @@ export default function Dashboard() {
               </div>
               <div>
                 <p className="font-medium text-sm">上传视频分析</p>
-                <p className="text-xs text-muted-foreground">MediaPipe AI姿势识别</p>
+                <p className="text-xs text-muted-foreground">导入视频并查看姿势分析</p>
               </div>
             </button>
             <button
@@ -268,7 +268,7 @@ export default function Dashboard() {
               </div>
               <div>
                 <p className="font-medium text-sm">查看NTRP评分</p>
-                <p className="text-xs text-muted-foreground">多维度能力评估</p>
+                <p className="text-xs text-muted-foreground">查看评分记录和维度结果</p>
               </div>
             </button>
           </div>

client/src/pages/Home.tsx

@@ -30,18 +30,18 @@ export default function Home() {
         <div className="max-w-3xl mx-auto text-center">
           <div className="inline-flex items-center gap-2 px-3 py-1 rounded-full bg-primary/10 text-primary text-sm font-medium mb-6">
             <Zap className="h-3.5 w-3.5" />
-            AI网球训练助手
+            网球训练系统
           </div>
           <h1 className="text-4xl md:text-5xl lg:text-6xl font-bold tracking-tight leading-tight">
-            精准分析
-            <span className="text-primary block mt-1">高效提升</span>
+            训练记录
+            <span className="text-primary block mt-1">分析与录制</span>
           </h1>
           <p className="text-lg text-muted-foreground mt-6 max-w-xl mx-auto leading-relaxed">
-            AI姿势识别 · 智能训练计划 · 实时动作分析 · 自动评分反馈
+            训练计划 · 姿势分析 · 实时录制 · 评分记录
           </p>
           <div className="flex items-center justify-center gap-3 mt-8">
             <Button onClick={() => setLocation("/login")} size="lg" className="gap-2 h-12 px-6">
-              开始训练
+              进入系统
               <ChevronRight className="h-4 w-4" />
             </Button>
           </div>
@@ -50,43 +50,43 @@ export default function Home() {
 
       {/* Features */}
       <section className="container py-16">
-        <h2 className="text-2xl font-bold text-center mb-12">核心功能</h2>
+        <h2 className="text-2xl font-bold text-center mb-12">功能</h2>
         <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6 max-w-5xl mx-auto">
           {[
             {
               icon: Video,
-              title: "AI姿势识别",
-              desc: "MediaPipe实时分析33个关键点，精准评估挥拍动作",
+              title: "姿势识别",
+              desc: "使用 MediaPipe 分析 33 个关键点并记录挥拍数据",
               color: "bg-blue-50 text-blue-600",
             },
             {
               icon: Target,
-              title: "智能训练计划",
-              desc: "根据水平和分析结果，AI自动生成和调整训练方案",
+              title: "训练计划",
+              desc: "根据水平和分析结果生成训练安排",
               color: "bg-green-50 text-green-600",
             },
             {
               icon: Award,
               title: "NTRP自动评分",
-              desc: "USTA标准五维度评估，每次分析自动更新评分",
+              desc: "按 USTA 维度记录评分结果",
               color: "bg-purple-50 text-purple-600",
             },
             {
               icon: Zap,
               title: "击球统计",
-              desc: "击球次数、挥拍速度、一致性，量化训练效果",
+              desc: "记录击球次数、挥拍速度和一致性",
               color: "bg-orange-50 text-orange-600",
             },
             {
               icon: Footprints,
               title: "运动轨迹",
-              desc: "重心移动轨迹分析，优化脚步移动模式",
+              desc: "记录重心移动轨迹和脚步变化",
               color: "bg-teal-50 text-teal-600",
             },
             {
               icon: TrendingUp,
               title: "进度追踪",
-              desc: "训练历史、能力趋势、评分变化一目了然",
+              desc: "查看训练历史、趋势和评分变化",
               color: "bg-indigo-50 text-indigo-600",
             },
           ].map((feature) => (
@@ -103,11 +103,11 @@ export default function Home() {
 
       {/* How it works */}
       <section className="container py-16">
-        <h2 className="text-2xl font-bold text-center mb-12">使用流程</h2>
+        <h2 className="text-2xl font-bold text-center mb-12">使用步骤</h2>
         <div className="grid grid-cols-1 md:grid-cols-4 gap-6 max-w-4xl mx-auto">
           {[
             { step: "1", title: "输入用户名", desc: "用户名登录即可" },
-            { step: "2", title: "生成计划", desc: "AI个性化训练方案" },
+            { step: "2", title: "生成计划", desc: "生成训练安排" },
             { step: "3", title: "上传视频", desc: "录制挥拍并分析" },
             { step: "4", title: "获取反馈", desc: "评分与矫正建议" },
           ].map((item) => (
@@ -125,10 +125,10 @@ export default function Home() {
       {/* CTA */}
       <section className="container py-16">
         <div className="max-w-2xl mx-auto text-center p-8 rounded-2xl bg-primary/5">
-          <h2 className="text-2xl font-bold mb-3">提升技术，从这里开始</h2>
-          <p className="text-muted-foreground mb-6">输入用户名即可使用全部功能</p>
+          <h2 className="text-2xl font-bold mb-3">登录入口</h2>
+          <p className="text-muted-foreground mb-6">输入用户名后进入系统</p>
           <Button onClick={() => setLocation("/login")} size="lg" className="gap-2">
-            立即开始
+            前往登录
             <ChevronRight className="h-4 w-4" />
           </Button>
         </div>
@@ -141,7 +141,7 @@ export default function Home() {
             <Target className="h-4 w-4" />
             <span>Tennis Hub</span>
           </div>
-          <span>AI网球训练助手</span>
+          <span>训练与分析</span>
         </div>
       </footer>
     </div>

client/src/pages/LiveCamera.tsx

@@ -285,7 +285,7 @@ export default function LiveCamera() {
               摄像头位置设置
             </DialogTitle>
             <DialogDescription>
-              为获得最佳分析效果，请按以下步骤调整设备位置
+              请按以下步骤调整设备位置
             </DialogDescription>
           </DialogHeader>
           <div className="space-y-4 py-2">
@@ -313,7 +313,7 @@ export default function LiveCamera() {
               <Button onClick={() => setSetupStep(s => s + 1)}>下一步</Button>
             ) : (
               <Button onClick={handleSetupComplete} className="gap-2">
-                <Camera className="h-4 w-4" />开始使用摄像头
+                <Camera className="h-4 w-4" />启用摄像头
               </Button>
             )}
           </DialogFooter>

client/src/pages/Login.tsx

@@ -37,13 +37,13 @@ export default function Login() {
             <Target className="w-8 h-8 text-primary" />
           </div>
           <h1 className="text-3xl font-bold tracking-tight">Tennis Hub</h1>
-          <p className="text-muted-foreground mt-2">AI网球训练助手</p>
+          <p className="text-muted-foreground mt-2">训练与分析入口</p>
         </div>
 
         <Card className="border-0 shadow-xl">
           <CardHeader className="text-center pb-2">
-            <CardTitle className="text-xl" data-testid="login-title">开始训练</CardTitle>
-            <CardDescription>输入用户名即可开始使用</CardDescription>
+            <CardTitle className="text-xl" data-testid="login-title">登录</CardTitle>
+            <CardDescription>输入用户名后进入系统</CardDescription>
           </CardHeader>
           <CardContent>
             <form onSubmit={handleLogin} className="space-y-4">
@@ -96,7 +96,7 @@ export default function Login() {
         </Card>
 
         <p className="text-center text-xs text-muted-foreground mt-6">
-          输入用户名即可使用全部功能
+          输入用户名后进入系统
         </p>
       </div>
     </div>

client/src/pages/Training.tsx

@@ -96,7 +96,7 @@ export default function Training() {
       <div className="flex items-center justify-between">
         <div>
           <h1 className="text-2xl font-bold tracking-tight" data-testid="training-title">训练计划</h1>
-          <p className="text-muted-foreground text-sm mt-1">AI个性化训练方案</p>
+          <p className="text-muted-foreground text-sm mt-1">按水平和周期生成训练安排</p>
         </div>
       </div>
 
@@ -109,7 +109,7 @@ export default function Training() {
               生成训练计划
             </CardTitle>
             <CardDescription>
-              根据水平和目标，AI生成个性化训练方案
+              根据水平和目标生成训练安排
             </CardDescription>
           </CardHeader>
           <CardContent className="space-y-4">
@@ -149,7 +149,7 @@ export default function Training() {
               className="w-full sm:w-auto gap-2"
             >
               {generateMutation.isPending ? (
-                <><Loader2 className="h-4 w-4 animate-spin" />AI生成中...</>
+                <><Loader2 className="h-4 w-4 animate-spin" />生成中...</>
               ) : (
                 <><Sparkles className="h-4 w-4" />生成训练计划</>
               )}
@@ -186,7 +186,7 @@ export default function Training() {
                   ) : (
                     <RefreshCw className="h-3 w-3" />
                   )}
-                  智能调整
+                  重新调整
                 </Button>
               </div>
               {activePlan.adjustmentNotes && (

client/src/pages/Tutorials.tsx

@@ -98,7 +98,7 @@ export default function Tutorials() {
           <BookOpen className="w-6 h-6 text-primary" />
           教程库
         </h1>
-        <p className="text-muted-foreground mt-1">专业动作分解与要领，对照标准动作提升技术</p>
+        <p className="text-muted-foreground mt-1">查看动作分解、要点说明和常见错误</p>
       </div>
 
       {/* Progress Overview */}