tts: 删除减负区标题与说明文字（03/Assist、减负区、描述）

app/tts/page.tsx

@@ -524,8 +524,8 @@ export default function TtsPage() {
       </aside>
     </div>
 
-    <section className="mt-8 rounded-2xl border border-line bg-panel/40 p-5 sm:p-7" aria-labelledby="assist-title">
-      <div className="flex flex-col justify-between gap-4 sm:flex-row sm:items-end"><div><p className="text-xs font-semibold uppercase tracking-[0.18em] text-subtle">03 / Assist</p><h2 className="mt-2 text-xl font-semibold" id="assist-title">减负区</h2><p className="mt-2 text-sm leading-6 text-muted">把识别、校对和分段交给系统，客户只需要确认内容和听结果。</p></div><span className="rounded-full border border-cyan/20 bg-cyan/5 px-3 py-1 text-xs text-cyan">少打字 · 少校对 · 少返工</span></div>
+    <section className="mt-8 rounded-2xl border border-line bg-panel/40 p-5 sm:p-7">
+      <div className="flex flex-col justify-between gap-4 sm:flex-row sm:items-end"><span className="rounded-full border border-cyan/20 bg-cyan/5 px-3 py-1 text-xs text-cyan">少打字 · 少校对 · 少返工</span></div>
       <div className="mt-6 grid gap-4 md:grid-cols-3">
         <button className="assist-card text-left" disabled={helperBusy} onClick={() => fileInputRef.current?.click()} onDragOver={(event) => event.preventDefault()} onDrop={(event) => { event.preventDefault(); void handleOcr(event.dataTransfer.files[0]); }} type="button"><span className="assist-icon">▧</span><span><strong>图片转文字</strong><small>上传或拖入截图、纸稿、PPT，识别结果填入编辑区</small></span><span className="assist-arrow">→</span></button>
         <button className="assist-card text-left" onClick={checkTypos} type="button"><span className="assist-icon">✓</span><span><strong>生成前查错字</strong><small>扫描疑似错字，红色波浪线标出并支持一键替换</small></span><span className="assist-arrow">→</span></button>