diff --git a/image-studio/public/index.html b/image-studio/public/index.html
index cbfdf9d..5b53e3b 100644
--- a/image-studio/public/index.html
+++ b/image-studio/public/index.html
@@ -3,119 +3,390 @@
 <head>
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
-<title>封面工作室 · 语言驱动设计系统</title>
+<title>封面工作室</title>
 <style>
 :root {
   --bg: #0a0e1a;
-  --panel: #11162a;
-  --border: #1e2640;
-  --border-h: #2d3655;
-  --text: #c5cee0;
-  --text-dim: #6b7280;
-  --accent: #3b82f6;
-  --accent-glow: #60a5fa;
-  --green: #10b981;
-  --gold: #f59e0b;
-  --purple: #8b5cf6;
-  --code-bg: #0d1117;
-  --radius: 8px;
+  --panel: rgba(17, 22, 42, 0.8);
+  --border: rgba(110, 160, 230, 0.2);
+  --border-h: rgba(150, 200, 255, 0.45);
+  --text: rgba(195, 215, 255, 0.9);
+  --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, 'SF Pro Display', 'PingFang SC', 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: 36px 20px 24px;
-  border-bottom: 1px solid var(--border);
+  text-align: center;
+  padding: 32px 20px 24px;
 }
 header h1 {
-  font-size: 30px; font-weight: 700;
-  background: linear-gradient(90deg, var(--accent), var(--accent-glow));
-  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
+  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: 1px; }
-
-.main { display: grid; grid-template-columns: 1fr 1fr; gap: 0; height: calc(100vh - 120px); }
-@media (max-width: 900px) { .main { grid-template-columns: 1fr; height: auto; } }
-
-/* Left Panel */
-.left { background: var(--panel); border-right: 1px solid var(--border); display: flex; flex-direction: column; }
-.left-hdr {
-  padding: 14px 18px; border-bottom: 1px solid var(--border);
-  display: flex; justify-content: space-between; align-items: center;
+header p {
+  font-size: 13px;
+  color: var(--text-dim);
+  letter-spacing: 2px;
 }
-.left-hdr .t { font-size: 12px; font-weight: 600; letter-spacing: 1px; color: var(--text-dim); }
-.left-hdr .s { font-size: 11px; color: var(--green); display: flex; align-items: center; gap: 6px; }
-.left-hdr .s::before { content: ''; width: 5px; height: 5px; background: var(--green); border-radius: 50%; animation: pulse 2s infinite; }
-@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }
 
-.code-area { flex: 1; overflow-y: auto; padding: 18px; font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace; font-size: 12.5px; background: var(--code-bg); }
-.code-block { margin-bottom: 6px; }
-.c-num { color: #4a5568; display: inline-block; width: 32px; user-select: none; text-align: right; margin-right: 8px; }
-.c-cmt { color: #636e7b; }
-.c-kw { color: var(--purple); }
-.c-str { color: var(--green); }
-.c-fn { color: var(--accent); }
-.c-nr { color: var(--gold); }
-.c-hl { color: var(--accent-glow); }
+/* 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; }
+}
 
-.input-panel { padding: 16px 18px; border-top: 1px solid var(--border); background: var(--panel); }
-.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 10px; }
-.input-panel select, .input-panel input { padding: 10px 12px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); font-size: 13px; outline: none; width: 100%; }
-.input-panel select:focus, .input-panel input:focus { border-color: var(--accent); }
-.input-panel textarea { width: 100%; padding: 12px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); font-size: 13px; line-height: 1.7; resize: vertical; min-height: 100px; outline: none; font-family: inherit; }
-.input-panel textarea:focus { border-color: var(--accent); }
+/* 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;
+}
 
-.gen-btn { width: 100%; padding: 13px; background: var(--accent); color: white; border: none; border-radius: var(--radius); font-size: 14px; font-weight: 600; cursor: pointer; margin-top: 10px; transition: all 0.2s; letter-spacing: 1px; }
-.gen-btn:hover { background: var(--accent-glow); }
-.gen-btn:disabled { opacity: 0.5; cursor: not-allowed; background: var(--accent); }
+/* 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;
+}
 
-/* Right Panel */
-.right { background: var(--bg); display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 30px; position: relative; overflow-y: auto; }
+.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;
+}
 
-.design-id-badge { position: absolute; top: 20px; left: 20px; background: var(--panel); padding: 10px 16px; border-radius: var(--radius); border: 1px solid var(--border); display: none; z-index: 2; }
-.design-id-badge .l { font-size: 10px; color: var(--text-dim); letter-spacing: 1px; }
-.design-id-badge .v { font-size: 13px; font-weight: 600; color: var(--accent); font-family: 'SF Mono', monospace; }
+/* 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;
+}
 
-.empty-state { text-align: center; color: var(--text-dim); }
-.empty-state .icon { font-size: 56px; margin-bottom: 16px; opacity: 0.25; }
-.empty-state p { font-size: 14px; line-height: 2; }
+/* 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;
+}
 
-.loading { display: none; text-align: center; padding: 40px; }
-.loading.show { display: block; }
-.loading .dots span { display: inline-block; width: 7px; height: 7px; background: var(--accent); border-radius: 50%; margin: 0 3px; 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); } }
+/* Right Panel - Preview */
+.preview-card {
+  position: sticky;
+  top: 24px;
+}
 
-.preview-wrap { position: relative; border-radius: 12px; overflow: hidden; box-shadow: 0 16px 48px rgba(0,0,0,0.5); border: 1px solid var(--border); display: none; }
-.preview-wrap.show { display: block; }
-.preview-wrap img { max-width: 100%; max-height: 60vh; display: block; }
-.watermark {
-  position: absolute; bottom: 14px; right: 14px;
-  background: rgba(0,0,0,0.75); padding: 6px 14px;
-  border-radius: 20px; font-size: 11px; font-family: 'SF Mono', monospace;
-  color: var(--accent-glow); border: 1px solid rgba(59,130,246,0.4);
+.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;
 }
 
-.dl-bar { display: none; gap: 10px; margin-top: 20px; }
-.dl-bar.show { display: flex; }
-.dl-btn { padding: 11px 22px; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); text-decoration: none; font-size: 13px; transition: all 0.2s; cursor: pointer; }
-.dl-btn:hover { border-color: var(--accent); color: var(--accent); }
-.dl-btn.primary { background: var(--accent); color: white; border-color: var(--accent); }
+.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));
+}
 
-.exec-log { display: none; width: 100%; max-width: 600px; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; margin-top: 16px; }
-.exec-log.show { display: block; }
-.exec-log .t { font-size: 11px; color: var(--text-dim); letter-spacing: 1px; margin-bottom: 12px; }
-.exec-row { display: flex; gap: 10px; padding: 7px 0; font-size: 12px; border-bottom: 1px solid rgba(30,38,64,0.5); }
-.exec-row:last-child { border-bottom: none; }
-.exec-row .n { color: var(--text-dim); font-family: 'SF Mono', monospace; min-width: 24px; }
-.exec-row .act { color: var(--accent); min-width: 80px; font-weight: 500; }
-.exec-row .det { color: var(--text-dim); flex: 1; }
+.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);
+}
 
-.error-msg { display: none; padding: 12px; background: rgba(255,71,87,0.08); border: 1px solid rgba(255,71,87,0.2); border-radius: var(--radius); color: #ff6b7a; font-size: 12px; margin-top: 10px; }
-.error-msg.show { display: block; }
+.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); }
+}
+
+.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;
+}
 </style>
 </head>
 <body>
@@ -127,28 +398,19 @@ header p { font-size: 13px; color: var(--text-dim); letter-spacing: 1px; }
 
 <div class="main">
 
-  <!-- Left: Design Logic + Input -->
+  <!-- Left: Intent Chain -->
   <div class="left">
-    <div class="left-hdr">
-      <span class="t">DESIGN LOGIC</span>
-      <span class="s">READY</span>
-    </div>
-    <div class="code-area" id="code">
-<span class="c-num">1</span><span class="c-cmt">// 等待用户输入设计意图...</span>
-<span class="c-num">2</span><span class="c-kw">await</span> <span class="c-fn">userInput</span>();
-<span class="c-num">3</span>
-<span class="c-num">4</span><span class="c-cmt">// 系统将把自然语言翻译成可执行的设计逻辑</span>
-<span class="c-num">5</span><span class="c-cmt">// 每步可追溯 · 编号唯一 · 归属性验证</span>
-    </div>
 
-    <div class="input-panel">
-      <div class="row2">
-        <select id="preset" onchange="updateCode()">
-          <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>
+    <!-- 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>
@@ -156,128 +418,87 @@ header p { font-size: 13px; color: var(--text-dim); letter-spacing: 1px; }
           <option value="quote">金句居中</option>
         </select>
       </div>
-      <div class="row2">
-        <select id="template">
-          <option value="xiaohongshu">📕 小红书 1080×1440</option>
-        </select>
-        <input type="text" id="tag" placeholder="标签 (可选)" maxlength="20">
-      </div>
-      <input type="text" id="title" placeholder="标题" style="width:100%;margin-bottom:10px;padding:10px 12px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);font-size:14px;outline:none;">
-      <textarea id="body" placeholder="正文...&#10;&#10;- 列表用 - 开头&#10;## 小标题 ##&#10;**加粗**文字"></textarea>
-      <button class="gen-btn" id="btn" onclick="gen()">执行设计逻辑</button>
-      <div class="error-msg" id="err"></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>
+      <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>
+
+    <!-- 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="intent-list" id="chainList"></div>
+    </div>
+
   </div>
 
-  <!-- Right: Preview + Chain -->
+  <!-- Right: Preview -->
   <div class="right">
-    <div class="design-id-badge" id="badge">
-      <div class="l">DESIGN ID</div>
-      <div class="v" id="bid">---</div>
-    </div>
+    <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>
 
-    <div class="empty-state" id="empty">
-      <div class="icon">🎨</div>
-      <p>在左侧输入设计意图<br>系统翻译成可执行逻辑<br>生成带编号的封面</p>
-    </div>
-
-    <div class="loading" id="loading">
-      <div class="dots"><span></span><span></span><span></span></div>
-      <p style="margin-top:18px;color:var(--text-dim);font-size:13px;">编译设计意图...</p>
-    </div>
-
-    <div class="preview-wrap" id="previewBox">
-      <img id="previewImg" alt="封面">
-      <div class="watermark" id="wm">---</div>
-    </div>
-
-    <div class="dl-bar" id="dlBar">
-      <a class="dl-btn primary" id="dl" href="#" download>下载 PNG</a>
-      <button class="dl-btn" onclick="copyId()">复制设计编号</button>
-    </div>
-
-    <div class="exec-log" id="log">
-      <div class="t">EXECUTION LOG</div>
-      <div id="logBody"></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 = '';
-const presetNames = { tech: '科技蓝', warm: '奶油暖调', minimal: '极简黑白', rose: '玫瑰粉调', green: '文艺绿植' };
-const layoutNames = { default: '标准排版', hero: '大标题封面', quote: '金句居中' };
 
-function updateCode() {
-  const p = document.getElementById('preset').value;
-  const t = document.getElementById('title').value.trim() || '待输入';
-  const b = document.getElementById('body').value.trim();
-  const l = document.getElementById('layout').value;
-  const hasList = b.includes('-');
+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;
 
-  document.getElementById('code').innerHTML =
-`<span class="c-num">1</span><span class="c-cmt">// =====================================</span>
-<span class="c-num">2</span><span class="c-cmt">// DESIGN ID: ${currentId || '待生成'}</span>
-<span class="c-num">3</span><span class="c-cmt">// =====================================</span>
-<span class="c-num">4</span>
-<span class="c-num">5</span><span class="c-kw">const</span> <span class="c-fn">userIntent</span> = {
-<span class="c-num">6</span>  title: <span class="c-str">"${t.substring(0,30)}${t.length>30?'...':''}"</span>,
-<span class="c-num">7</span>  style: <span class="c-str">"${presetNames[p]}"</span>,
-<span class="c-num">8</span>  layout: <span class="c-str">"${layoutNames[l]}"</span>,
-<span class="c-num">9</span>  owner: <span class="c-str">"用户"</span>,
-<span class="c-num">10</span>};
-<span class="c-num">11</span>
-<span class="c-num">12</span><span class="c-cmt">// STEP 1: analyzeIntent() — 理解意图</span>
-<span class="c-num">13</span><span class="c-kw">const</span> a = <span class="c-fn">analyzeIntent</span>(userIntent);
-<span class="c-num">14</span><span class="c-cmt">// → 类型: ${hasList?'列表/教程':'段落文本'}</span>
-<span class="c-num">15</span><span class="c-cmt">// → 情绪: ${p==='tech'?'冷静专业':p==='warm'?'温暖亲和':'简约高级'}</span>
-<span class="c-num">16</span>
-<span class="c-num">17</span><span class="c-cmt">// STEP 2: selectColorScheme() — 匹配配色</span>
-<span class="c-num">18</span><span class="c-kw">const</span> cs = <span class="c-str">"${p}"</span>;
-<span class="c-num">19</span><span class="c-cmt">// → ${presetNames[p]} · 配色方案匹配情绪</span>
-<span class="c-num">20</span>
-<span class="c-num">21</span><span class="c-cmt">// STEP 3: specifyLayout() — 确定布局</span>
-<span class="c-num">22</span><span class="c-kw">const</span> ly = <span class="c-str">"${l}"</span>;
-<span class="c-num">23</span><span class="c-cmt">// → ${layoutNames[l]} ${l==='hero'?'· 大标题视觉冲击':l==='quote'?'· 金句居中聚焦':'· 图文并茂'}</span>
-<span class="c-num">24</span>
-<span class="c-num">25</span><span class="c-cmt">// STEP 4: render() — 排版引擎执行</span>
-<span class="c-num">26</span><span class="c-kw">await</span> <span class="c-fn">renderToImage</span>({
-<span class="c-num">27</span>  template: <span class="c-str">"xiaohongshu"</span>,
-<span class="c-num">28</span>  size: <span class="c-nr">1080</span> × <span class="c-nr">1440</span>,
-<span class="c-num">29</span>  engine: <span class="c-str">"Puppeteer + Chrome"</span>,
-<span class="c-num">30</span>  format: <span class="c-str">"PNG"</span>
-<span class="c-num">31</span>});
-<span class="c-num">32</span>
-<span class="c-num">33</span><span class="c-cmt">// STEP 5: watermark() — 添加归属编号</span>
-<span class="c-num">34</span><span class="c-fn">watermark</span>(<span class="c-hl">"${currentId || '即将生成...'}"</span>);
-<span class="c-num">35</span><span class="c-cmt">// ✓ 完成 · 该设计归用户所有</span>`;
-}
+  if (!title && !body) {
+    showErr('请输入标题或正文');
+    return;
+  }
 
-async function gen() {
-  const t = document.getElementById('title').value.trim();
-  const b = document.getElementById('body').value.trim();
-  const p = document.getElementById('preset').value;
-  const l = document.getElementById('layout').value;
-  const tag = document.getElementById('tag').value.trim();
-
-  if (!t && !b) { showErr('请输入标题或正文'); return; }
-
-  // Reset UI
+  // UI reset
   document.getElementById('err').classList.remove('show');
   document.getElementById('empty').style.display = 'none';
-  document.getElementById('previewBox').classList.remove('show');
-  document.getElementById('dlBar').classList.remove('show');
-  document.getElementById('log').classList.remove('show');
-  document.getElementById('badge').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('loading').classList.add('show');
   document.getElementById('btn').disabled = true;
 
   // Generate ID
-  currentId = 'DSG-' + Date.now().toString(36).toUpperCase();
-  document.getElementById('bid').textContent = currentId;
-  document.getElementById('wm').textContent = currentId;
-  updateCode();
+  currentId = 'DSG-' + Date.now().toString(36).toUpperCase().slice(-8);
 
   try {
     const r = await fetch('/api/generate', {
@@ -285,73 +506,83 @@ async function gen() {
       headers: { 'Content-Type': 'application/json' },
       body: JSON.stringify({
         templateId: 'xiaohongshu',
-        presetId: p, title: t, body: b, tag,
-        layout: l,
-      }),
+        presetId: preset,
+        title: title,
+        body: body,
+        layout: layout
+      })
     });
 
-    if (!r.ok) { const e = await r.json(); throw new Error(e.error || '生成失败'); }
+    if (!r.ok) throw new Error('生成失败');
     const d = await r.json();
 
-    // Show result
+    // Show preview
     document.getElementById('loading').classList.remove('show');
     document.getElementById('previewImg').src = d.url;
-    document.getElementById('previewBox').classList.add('show');
-    document.getElementById('dlBar').classList.add('show');
-    document.getElementById('dl').href = d.url;
-    document.getElementById('badge').style.display = 'block';
+    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 execution log from intent chain
+    // Show ID card
+    document.getElementById('designId').textContent = currentId;
+    document.getElementById('idCard').style.display = 'block';
+
+    // Show intent chain
     if (d.intent_chain) {
-      document.getElementById('log').classList.add('show');
-      document.getElementById('logBody').innerHTML = d.intent_chain.map((s, i) =>
-        `<div class="exec-row">
-          <span class="n">${String(i+1).padStart(2,'0')}</span>
-          <span class="act">${s.step}</span>
-          <span class="det">${s.detail.substring(0,80)}</span>
-        </div>`
-      ).join('');
+      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('');
     }
 
-    // Update code with result
-    document.getElementById('code').innerHTML = document.getElementById('code').innerHTML
-      .replace(/即将生成.../g, currentId)
-      + `
-<span class="c-num">36</span>
-<span class="c-num">37</span><span class="c-cmt">// ✅ 设计生成完成</span>
-<span class="c-num">38</span><span class="c-cmt">// DESIGN ID: ${currentId}</span>
-<span class="c-num">39</span><span class="c-cmt">// 证明: 左侧编号 = 图片上编号 → 属于你</span>`;
-
   } catch (e) {
     document.getElementById('loading').classList.remove('show');
     document.getElementById('empty').style.display = 'block';
     showErr(e.message);
-    document.getElementById('btn').disabled = false;
   } 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'), 5000); }
+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(() => showErr('已复制: ' + currentId));
+  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') gen();
+  if ((e.metaKey || e.ctrlKey) && e.key === 'Enter') generate();
 });
 
-// Pre-fill demo
+// Prefill
 (function() {
   document.getElementById('title').value = '零基础手搓AI封面生成器';
-  document.getElementById('body').value =
+  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' +
-    '- 意图透明 · 每一步可见\n' +
+    '- 意图链可截图保存\n' +
     '- 编号唯一 · 设计属于你';
-  updateCode();
 })();
 </script>
 
