diff --git a/image-studio/public/index.html b/image-studio/public/index.html
index 5b53e3b..e99cd7c 100644
--- a/image-studio/public/index.html
+++ b/image-studio/public/index.html
@@ -14,379 +14,76 @@
   --text-dim: rgba(155, 195, 235, 0.55);
   --accent: rgba(100, 160, 220, 0.9);
   --green: rgba(140, 220, 180, 0.9);
-  --gold: rgba(220, 200, 140, 0.9);
 }
 * { margin: 0; padding: 0; box-sizing: border-box; }
-body {
-  background: var(--bg);
-  color: var(--text);
-  font-family: -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
-  min-height: 100vh;
-  line-height: 1.6;
-}
+body { background: var(--bg); color: var(--text); font-family: -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif; min-height: 100vh; line-height: 1.6; }
 
-/* Header */
-header {
-  text-align: center;
-  padding: 32px 20px 24px;
-}
-header h1 {
-  font-size: 28px;
-  font-weight: 700;
-  background: linear-gradient(90deg, #3b82f6, #60a5fa);
-  -webkit-background-clip: text;
-  -webkit-text-fill-color: transparent;
-  margin-bottom: 6px;
-  letter-spacing: 4px;
-}
-header p {
-  font-size: 13px;
-  color: var(--text-dim);
-  letter-spacing: 2px;
-}
+header { text-align: center; padding: 32px 20px 24px; }
+header h1 { font-size: 28px; font-weight: 700; background: linear-gradient(90deg, #3b82f6, #60a5fa); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 6px; letter-spacing: 4px; }
+header p { font-size: 13px; color: var(--text-dim); letter-spacing: 2px; }
 
-/* Main */
-.main {
-  max-width: 1200px;
-  margin: 0 auto;
-  padding: 0 24px 60px;
-  display: grid;
-  grid-template-columns: 1fr 400px;
-  gap: 24px;
-}
-@media (max-width: 900px) {
-  .main { grid-template-columns: 1fr; }
-}
+.main { max-width: 1200px; margin: 0 auto; padding: 0 24px 60px; display: grid; grid-template-columns: 1fr 400px; gap: 24px; }
+@media (max-width: 900px) { .main { grid-template-columns: 1fr; } }
 
-/* Cards - 参考主域名风格 */
-.card {
-  background: var(--panel);
-  border: 1px solid var(--border);
-  border-radius: 18px;
-  padding: 24px;
-  margin-bottom: 16px;
-  transition: all 0.3s;
-}
-.card:hover {
-  border-color: var(--border-h);
-  background: rgba(20, 35, 70, 0.85);
-}
-.card-title {
-  font-size: 14px;
-  font-weight: 600;
-  letter-spacing: 3px;
-  color: var(--text-dim);
-  text-transform: uppercase;
-  margin-bottom: 16px;
-  display: flex;
-  align-items: center;
-  gap: 8px;
-}
-.card-title::before {
-  content: '';
-  width: 4px;
-  height: 16px;
-  background: var(--accent);
-  border-radius: 2px;
-}
+.card { background: var(--panel); border: 1px solid var(--border); border-radius: 18px; padding: 24px; margin-bottom: 16px; }
+.card:hover { border-color: var(--border-h); background: rgba(20,35,70,0.85); }
+.card-title { font-size: 14px; font-weight: 600; letter-spacing: 3px; color: var(--text-dim); text-transform: uppercase; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
+.card-title::before { content: ''; width: 4px; height: 16px; background: var(--accent); border-radius: 2px; }
 
-/* Input */
-.input-row {
-  display: grid;
-  grid-template-columns: 1fr 1fr;
-  gap: 12px;
-  margin-bottom: 12px;
-}
-select, input, textarea {
-  padding: 12px 16px;
-  background: rgba(10, 14, 26, 0.6);
-  border: 1px solid var(--border);
-  border-radius: 12px;
-  color: var(--text);
-  font-size: 14px;
-  outline: none;
-  width: 100%;
-  font-family: inherit;
-}
-select:focus, input:focus, textarea:focus {
-  border-color: var(--accent);
-}
-textarea {
-  min-height: 100px;
-  resize: vertical;
-  line-height: 1.8;
-}
+.input-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
+select, input, textarea { padding: 12px 16px; background: rgba(10,14,26,0.6); border: 1px solid var(--border); border-radius: 12px; color: var(--text); font-size: 14px; outline: none; width: 100%; font-family: inherit; }
+select:focus, input:focus, textarea:focus { border-color: var(--accent); }
+textarea { min-height: 100px; resize: vertical; line-height: 1.8; }
 
-.gen-btn {
-  width: 100%;
-  padding: 14px;
-  background: linear-gradient(135deg, rgba(100,160,220,0.3), rgba(130,100,200,0.2));
-  border: 1px solid var(--border);
-  border-radius: 12px;
-  color: var(--accent);
-  font-size: 15px;
-  font-weight: 600;
-  cursor: pointer;
-  letter-spacing: 2px;
-  transition: all 0.25s;
-  margin-top: 8px;
-}
-.gen-btn:hover {
-  border-color: var(--border-h);
-  background: linear-gradient(135deg, rgba(100,160,220,0.5), rgba(130,100,200,0.35));
-  transform: translateY(-1px);
-}
-.gen-btn:disabled {
-  opacity: 0.5;
-  cursor: not-allowed;
-}
+.gen-btn { width: 100%; padding: 14px; background: linear-gradient(135deg, rgba(100,160,220,0.3), rgba(130,100,200,0.2)); border: 1px solid var(--border); border-radius: 12px; color: var(--accent); font-size: 15px; font-weight: 600; cursor: pointer; letter-spacing: 2px; margin-top: 8px; }
+.gen-btn:hover { border-color: var(--border-h); background: linear-gradient(135deg, rgba(100,160,220,0.5), rgba(130,100,200,0.35)); transform: translateY(-1px); }
+.gen-btn:disabled { opacity: 0.5; cursor: not-allowed; }
 
-/* Intent Chain Cards */
-.intent-list {
-  display: flex;
-  flex-direction: column;
-  gap: 12px;
-}
-.intent-item {
-  display: flex;
-  gap: 14px;
-  padding: 16px;
-  background: rgba(10, 14, 26, 0.4);
-  border: 1px solid var(--border);
-  border-radius: 12px;
-  transition: all 0.2s;
-}
-.intent-item:hover {
-  border-color: var(--border-h);
-}
-.intent-item.user {
-  border-left: 3px solid var(--green);
-}
-.intent-item.system {
-  border-left: 3px solid var(--accent);
-}
-.intent-icon {
-  width: 36px;
-  height: 36px;
-  border-radius: 50%;
-  background: rgba(100, 160, 220, 0.1);
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  font-size: 16px;
-  flex-shrink: 0;
-}
-.intent-item.user .intent-icon {
-  background: rgba(140, 220, 180, 0.1);
-}
-.intent-body {
-  flex: 1;
-}
-.intent-who {
-  font-size: 11px;
-  font-weight: 600;
-  letter-spacing: 1.5px;
-  text-transform: uppercase;
-  margin-bottom: 4px;
-}
-.intent-item.user .intent-who {
-  color: var(--green);
-}
-.intent-item.system .intent-who {
-  color: var(--accent);
-}
-.intent-step {
-  font-size: 15px;
-  font-weight: 600;
-  color: var(--text);
-  margin-bottom: 4px;
-}
-.intent-detail {
-  font-size: 13px;
-  color: var(--text-dim);
-  line-height: 1.6;
-}
-.intent-why {
-  font-size: 12px;
-  color: rgba(155, 195, 235, 0.35);
-  margin-top: 6px;
-  font-style: italic;
-}
+.intent-list { display: flex; flex-direction: column; gap: 12px; }
+.intent-item { display: flex; gap: 14px; padding: 16px; background: rgba(10,14,26,0.4); border: 1px solid var(--border); border-radius: 12px; }
+.intent-item:hover { border-color: var(--border-h); }
+.intent-item.user { border-left: 3px solid var(--green); }
+.intent-item.system { border-left: 3px solid var(--accent); }
+.intent-icon { width: 36px; height: 36px; border-radius: 50%; background: rgba(100,160,220,0.1); display: flex; align-items: center; justify-content: center; font-size: 16px; flex-shrink: 0; }
+.intent-item.user .intent-icon { background: rgba(140,220,180,0.1); }
+.intent-body { flex: 1; }
+.intent-who { font-size: 11px; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 4px; }
+.intent-item.user .intent-who { color: var(--green); }
+.intent-item.system .intent-who { color: var(--accent); }
+.intent-step { font-size: 15px; font-weight: 600; color: var(--text); margin-bottom: 4px; }
+.intent-detail { font-size: 13px; color: var(--text-dim); line-height: 1.6; }
+.intent-why { font-size: 12px; color: rgba(155,195,235,0.35); margin-top: 6px; font-style: italic; }
 
-/* Design ID Badge */
-.design-id-card {
-  text-align: center;
-  padding: 20px;
-  background: rgba(140, 220, 180, 0.06);
-  border: 1px solid rgba(140, 220, 180, 0.15);
-  border-radius: 12px;
-  margin-bottom: 16px;
-}
-.design-id-card .label {
-  font-size: 11px;
-  color: var(--text-dim);
-  letter-spacing: 2px;
-  margin-bottom: 8px;
-}
-.design-id-card .value {
-  font-size: 20px;
-  font-weight: 700;
-  color: var(--green);
-  font-family: 'SF Mono', monospace;
-  letter-spacing: 2px;
-}
-.design-id-card .hint {
-  font-size: 12px;
-  color: var(--text-dim);
-  margin-top: 8px;
-}
+.design-id-card { text-align: center; padding: 20px; background: rgba(140,220,180,0.06); border: 1px solid rgba(140,220,180,0.15); border-radius: 12px; margin-bottom: 16px; }
+.design-id-card .label { font-size: 11px; color: var(--text-dim); letter-spacing: 2px; margin-bottom: 8px; }
+.design-id-card .value { font-size: 20px; font-weight: 700; color: var(--green); font-family: 'SF Mono', monospace; letter-spacing: 2px; }
+.design-id-card .hint { font-size: 12px; color: var(--text-dim); margin-top: 8px; }
 
-/* Right Panel - Preview */
-.preview-card {
-  position: sticky;
-  top: 24px;
-}
+.preview-card { position: sticky; top: 24px; }
+.preview-area { min-height: 300px; display: flex; align-items: center; justify-content: center; background: rgba(10,14,26,0.4); border-radius: 12px; border: 1px dashed var(--border); margin-bottom: 16px; }
+.empty-hint { text-align: center; color: var(--text-dim); }
+.empty-hint .icon { font-size: 48px; margin-bottom: 12px; opacity: 0.3; }
+.empty-hint p { font-size: 14px; line-height: 2; }
+.preview-img { max-width: 100%; border-radius: 8px; display: none; }
+.preview-img.show { display: block; }
+.preview-wrap { position: relative; display: none; }
+.preview-wrap.show { display: block; }
+.id-watermark { position: absolute; bottom: 12px; right: 12px; background: rgba(0,0,0,0.7); padding: 6px 12px; border-radius: 16px; font-size: 11px; font-family: 'SF Mono', monospace; color: var(--accent); border: 1px solid rgba(100,160,220,0.4); letter-spacing: 1px; }
 
-.preview-area {
-  min-height: 300px;
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  background: rgba(10, 14, 26, 0.4);
-  border-radius: 12px;
-  border: 1px dashed var(--border);
-  margin-bottom: 16px;
-}
+.dl-btn, .copy-btn { display: block; width: 100%; padding: 14px; background: linear-gradient(135deg, rgba(100,160,220,0.3), rgba(130,100,200,0.2)); border: 1px solid var(--border); border-radius: 12px; color: var(--accent); text-align: center; text-decoration: none; font-size: 15px; font-weight: 600; letter-spacing: 2px; cursor: pointer; }
+.dl-btn:hover, .copy-btn:hover { border-color: var(--border-h); background: linear-gradient(135deg, rgba(100,160,220,0.5), rgba(130,100,200,0.35)); }
 
-.empty-hint {
-  text-align: center;
-  color: var(--text-dim);
-}
-.empty-hint .icon {
-  font-size: 48px;
-  margin-bottom: 12px;
-  opacity: 0.3;
-}
-.empty-hint p {
-  font-size: 14px;
-  line-height: 2;
-}
-
-.preview-img {
-  max-width: 100%;
-  border-radius: 8px;
-  display: none;
-}
-.preview-img.show {
-  display: block;
-}
-
-.preview-wrap {
-  position: relative;
-  display: none;
-}
-.preview-wrap.show {
-  display: block;
-}
-
-.id-watermark {
-  position: absolute;
-  bottom: 12px;
-  right: 12px;
-  background: rgba(0, 0, 0, 0.7);
-  padding: 6px 12px;
-  border-radius: 16px;
-  font-size: 11px;
-  font-family: 'SF Mono', monospace;
-  color: var(--accent);
-  border: 1px solid rgba(100, 160, 220, 0.4);
-  letter-spacing: 1px;
-}
-
-.dl-btn {
-  display: block;
-  width: 100%;
-  padding: 14px;
-  background: linear-gradient(135deg, rgba(100,160,220,0.3), rgba(130,100,200,0.2));
-  border: 1px solid var(--border);
-  border-radius: 12px;
-  color: var(--accent);
-  text-align: center;
-  text-decoration: none;
-  font-size: 15px;
-  font-weight: 600;
-  letter-spacing: 2px;
-  transition: all 0.25s;
-}
-.dl-btn:hover {
-  border-color: var(--border-h);
-  background: linear-gradient(135deg, rgba(100,160,220,0.5), rgba(130,100,200,0.35));
-}
-
-.copy-btn {
-  display: block;
-  width: 100%;
-  padding: 12px;
-  background: rgba(10, 14, 26, 0.6);
-  border: 1px solid var(--border);
-  border-radius: 12px;
-  color: var(--text-dim);
-  text-align: center;
-  font-size: 13px;
-  cursor: pointer;
-  margin-top: 10px;
-  transition: all 0.2s;
-}
-.copy-btn:hover {
-  border-color: var(--accent);
-  color: var(--accent);
-}
-
-.loading {
-  display: none;
-  text-align: center;
-  padding: 40px;
-}
-.loading.show {
-  display: block;
-}
-.loading-dots span {
-  display: inline-block;
-  width: 8px;
-  height: 8px;
-  background: var(--accent);
-  border-radius: 50%;
-  margin: 0 4px;
-  animation: bounce 1.4s infinite;
-}
+.loading { display: none; text-align: center; padding: 40px; }
+.loading.show { display: block; }
+.loading-dots span { display: inline-block; width: 8px; height: 8px; background: var(--accent); border-radius: 50%; margin: 0 4px; animation: bounce 1.4s infinite; }
 .loading-dots span:nth-child(1) { animation-delay: -0.32s; }
 .loading-dots span:nth-child(2) { animation-delay: -0.16s; }
-@keyframes bounce {
-  0%, 80%, 100% { transform: scale(0); }
-  40% { transform: scale(1); }
-}
+@keyframes bounce { 0%,80%,100% { transform: scale(0); } 40% { transform: scale(1); } }
 
-.error {
-  display: none;
-  padding: 12px;
-  background: rgba(255, 100, 100, 0.1);
-  border: 1px solid rgba(255, 100, 100, 0.2);
-  border-radius: 12px;
-  color: rgba(255, 140, 140, 0.9);
-  font-size: 13px;
-  margin-top: 12px;
-}
-.error.show {
-  display: block;
-}
+.error { display: none; padding: 12px; background: rgba(255,100,100,0.1); border: 1px solid rgba(255,100,100,0.2); border-radius: 12px; color: rgba(255,140,140,0.9); font-size: 13px; margin-top: 12px; }
+.error.show { display: block; }
 
-footer {
-  text-align: center;
-  padding: 40px 20px;
-  font-size: 13px;
-  color: var(--text-dim);
-  letter-spacing: 2px;
-}
+footer { text-align: center; padding: 40px 20px; font-size: 13px; color: var(--text-dim); letter-spacing: 2px; }
 </style>
 </head>
 <body>
@@ -397,193 +94,83 @@ footer {
 </header>
 
 <div class="main">
-
-  <!-- Left: Intent Chain -->
   <div class="left">
-
-    <!-- Input Card -->
     <div class="card">
       <div class="card-title">内容输入</div>
       <div class="input-row">
-        <select id="preset">
-          <option value="tech">🔷 科技蓝</option>
-          <option value="warm">🟠 奶油暖调</option>
-          <option value="minimal">⬜ 极简黑白</option>
-          <option value="rose">🟣 玫瑰粉调</option>
-          <option value="green">🟢 文艺绿植</option>
-        </select>
-        <select id="layout">
-          <option value="default">标准排版</option>
-          <option value="hero">大标题封面</option>
-          <option value="quote">金句居中</option>
-        </select>
+        <select id="preset"><option value="tech">🔷 科技蓝</option><option value="warm">🟠 奶油暖调</option><option value="minimal">⬜ 极简黑白</option><option value="rose">🟣 玫瑰粉调</option><option value="green">🟢 文艺绿植</option></select>
+        <select id="layout"><option value="default">标准排版</option><option value="hero" selected>大标题封面</option><option value="quote">金句居中</option></select>
       </div>
       <input type="text" id="title" placeholder="标题" style="margin-bottom:12px;">
-      <textarea id="body" placeholder="正文...
-
-- 列表用 - 开头
-## 小标题
-**加粗**文字"></textarea>
+      <textarea id="body" placeholder="正文..."></textarea>
       <button class="gen-btn" id="btn" onclick="generate()">执行设计逻辑</button>
       <div class="error" id="err"></div>
     </div>
-
-    <!-- Design ID Card -->
     <div class="design-id-card" id="idCard" style="display:none;">
       <div class="label">DESIGN ID</div>
       <div class="value" id="designId">---</div>
-      <div class="hint">左侧意图链 + 图片水印<br>编号一致 · 证明归属</div>
+      <div class="hint">左侧意图链 + 图片水印 · 编号一致 · 证明归属</div>
     </div>
-
-    <!-- Intent Chain Card -->
     <div class="card" id="chainCard" style="display:none;">
-      <div class="card-title">意图链 · 可截图保存</div>
+      <div class="card-title">意图链 · 截图保存</div>
       <div class="intent-list" id="chainList"></div>
     </div>
-
   </div>
-
-  <!-- Right: Preview -->
   <div class="right">
     <div class="preview-card">
       <div class="card-title">封面预览</div>
-      
       <div class="preview-area" id="previewArea">
-        <div class="empty-hint" id="empty">
-          <div class="icon">🎨</div>
-          <p>左侧输入内容<br>点击执行<br>生成带编号封面</p>
-        </div>
-        <div class="loading" id="loading">
-          <div class="loading-dots"><span></span><span></span><span></span></div>
-          <p style="margin-top:16px;color:var(--text-dim);font-size:13px;">编译中...</p>
-        </div>
-        <div class="preview-wrap" id="previewWrap">
-          <img class="preview-img" id="previewImg" alt="封面">
-          <div class="id-watermark" id="watermark">---</div>
-        </div>
+        <div class="empty-hint" id="empty"><div class="icon">🎨</div><p>左侧输入内容<br>点击执行<br>生成带编号封面</p></div>
+        <div class="loading" id="loading"><div class="loading-dots"><span></span><span></span><span></span></div><p style="margin-top:16px;color:var(--text-dim);font-size:13px;">编译中...</p></div>
+        <div class="preview-wrap" id="previewWrap"><img class="preview-img" id="previewImg" alt="封面"><div class="id-watermark" id="watermark">---</div></div>
       </div>
-
       <a class="dl-btn" id="dlBtn" href="#" download style="display:none;">下载封面 PNG</a>
       <button class="copy-btn" id="copyBtn" onclick="copyId()" style="display:none;">复制设计编号</button>
     </div>
   </div>
-
 </div>
 
 <footer>光湖语言世界 · 人格体的操作系统 · ICE-GL-ZY001</footer>
 
 <script>
 let currentId = '';
-
 async function generate() {
   const title = document.getElementById('title').value.trim();
   const body = document.getElementById('body').value.trim();
   const preset = document.getElementById('preset').value;
   const layout = document.getElementById('layout').value;
-
-  if (!title && !body) {
-    showErr('请输入标题或正文');
-    return;
-  }
-
-  // UI reset
+  if(!title&&!body){showErr('请输入标题或正文');return}
   document.getElementById('err').classList.remove('show');
-  document.getElementById('empty').style.display = 'none';
+  document.getElementById('empty').style.display='none';
   document.getElementById('previewWrap').classList.remove('show');
-  document.getElementById('dlBtn').style.display = 'none';
-  document.getElementById('copyBtn').style.display = 'none';
-  document.getElementById('idCard').style.display = 'none';
-  document.getElementById('chainCard').style.display = 'none';
+  document.getElementById('dlBtn').style.display='none';
+  document.getElementById('copyBtn').style.display='none';
+  document.getElementById('idCard').style.display='none';
+  document.getElementById('chainCard').style.display='none';
   document.getElementById('loading').classList.add('show');
-  document.getElementById('btn').disabled = true;
-
-  // Generate ID
-  currentId = 'DSG-' + Date.now().toString(36).toUpperCase().slice(-8);
-
-  try {
-    const r = await fetch('/api/generate', {
-      method: 'POST',
-      headers: { 'Content-Type': 'application/json' },
-      body: JSON.stringify({
-        templateId: 'xiaohongshu',
-        presetId: preset,
-        title: title,
-        body: body,
-        layout: layout
-      })
-    });
-
-    if (!r.ok) throw new Error('生成失败');
-    const d = await r.json();
-
-    // Show preview
+  document.getElementById('btn').disabled=true;
+  currentId='DSG-'+Date.now().toString(36).toUpperCase().slice(-8);
+  try{
+    const r=await fetch('/api/generate',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({templateId:'xiaohongshu',presetId:preset,title,body,layout})});
+    if(!r.ok){const e=await r.json();throw new Error(e.error||'生成失败')}
+    const d=await r.json();
     document.getElementById('loading').classList.remove('show');
-    document.getElementById('previewImg').src = d.url;
+    document.getElementById('previewImg').src=d.url;
     document.getElementById('previewWrap').classList.add('show');
-    document.getElementById('watermark').textContent = currentId;
-    document.getElementById('dlBtn').href = d.url;
-    document.getElementById('dlBtn').style.display = 'block';
-    document.getElementById('copyBtn').style.display = 'block';
-
-    // Show ID card
-    document.getElementById('designId').textContent = currentId;
-    document.getElementById('idCard').style.display = 'block';
-
-    // Show intent chain
-    if (d.intent_chain) {
-      document.getElementById('chainCard').style.display = 'block';
-      document.getElementById('chainList').innerHTML = d.intent_chain.map(s => `
-        <div class="intent-item ${s.who === '用户' ? 'user' : 'system'}">
-          <div class="intent-icon">${s.icon}</div>
-          <div class="intent-body">
-            <div class="intent-who">${s.who}</div>
-            <div class="intent-step">${s.step}</div>
-            <div class="intent-detail">${s.detail}</div>
-            ${s.why ? `<div class="intent-why">→ ${s.why}</div>` : ''}
-          </div>
-        </div>
-      `).join('');
-    }
-
-  } catch (e) {
-    document.getElementById('loading').classList.remove('show');
-    document.getElementById('empty').style.display = 'block';
-    showErr(e.message);
-  } finally {
-    document.getElementById('btn').disabled = false;
-  }
+    document.getElementById('watermark').textContent=currentId;
+    document.getElementById('dlBtn').href=d.url;
+    document.getElementById('dlBtn').style.display='block';
+    document.getElementById('copyBtn').style.display='block';
+    document.getElementById('designId').textContent=currentId;
+    document.getElementById('idCard').style.display='block';
+    if(d.intent_chain){document.getElementById('chainCard').style.display='block';document.getElementById('chainList').innerHTML=d.intent_chain.map(s=>'<div class="intent-item '+(s.who==='用户'?'user':'system')+'"><div class="intent-icon">'+s.icon+'</div><div class="intent-body"><div class="intent-who">'+s.who+'</div><div class="intent-step">'+s.step+'</div><div class="intent-detail">'+s.detail+'</div>'+(s.why?'<div class="intent-why">→ '+s.why+'</div>':'')+'</div></div>').join('')}
+  }catch(e){document.getElementById('loading').classList.remove('show');document.getElementById('empty').style.display='block';showErr(e.message)}
+  finally{document.getElementById('btn').disabled=false}
 }
-
-function showErr(m) {
-  const e = document.getElementById('err');
-  e.textContent = m;
-  e.classList.add('show');
-  setTimeout(() => e.classList.remove('show'), 4000);
-}
-
-function copyId() {
-  navigator.clipboard.writeText(currentId).then(() => {
-    const btn = document.getElementById('copyBtn');
-    const old = btn.textContent;
-    btn.textContent = '已复制: ' + currentId;
-    setTimeout(() => btn.textContent = old, 2000);
-  });
-}
-
-document.addEventListener('keydown', e => {
-  if ((e.metaKey || e.ctrlKey) && e.key === 'Enter') generate();
-});
-
-// Prefill
-(function() {
-  document.getElementById('title').value = '零基础手搓AI封面生成器';
-  document.getElementById('body').value = 
-    '语言驱动设计 · 意图透明 · 编号可追溯\n\n' +
-    '- 零成本 · 无需GPU\n' +
-    '- 极轻量 · 一行命令部署\n' +
-    '- 意图链可截图保存\n' +
-    '- 编号唯一 · 设计属于你';
-})();
+function showErr(m){const e=document.getElementById('err');e.textContent=m;e.classList.add('show');setTimeout(()=>e.classList.remove('show'),4000)}
+function copyId(){navigator.clipboard.writeText(currentId).then(()=>{const b=document.getElementById('copyBtn');const o=b.textContent;b.textContent='已复制: '+currentId;setTimeout(()=>b.textContent=o,2000)})}
+document.addEventListener('keydown',e=>{if((e.metaKey||e.ctrlKey)&&e.key==='Enter')generate()});
+(function(){document.getElementById('title').value='零基础手搓AI做图小系统';document.getElementById('body').value='AI辅助 + 自己手搓 · 0经验也能开发\n\n- 开源到个人代码仓库\n- 全免费 · 无需GPU · 无需服务器\n- 语言驱动排版 · 意图透明\n- 封面也用它自己生成\n- 访问 cover.guanghulab.com 试试'})();
 </script>
 
 </body>