diff --git a/app.py b/app.py
index 7dcadbe..a2bcd09 100644
--- a/app.py
+++ b/app.py
@@ -643,17 +643,19 @@ gradio-app,
         gap: 6px !important;
     }
     .gradio-container .tab-nav button {
-        flex: 1 1 28% !important;
-        min-width: 88px !important;
-        padding: 8px 8px !important;
-        font-size: 0.8rem !important;
+        flex: 1 1 25% !important;
+        min-width: 0 !important;
+        padding: 8px 6px !important;
+        font-size: 0.82rem !important;
     }
     .status-row,
     .status-row > div,
     .pipeline-steps,
     .pipeline-steps > div,
     .pipeline-output-row,
-    .pipeline-output-row > div {
+    .pipeline-output-row > div,
+    .pipeline-input-row,
+    .pipeline-input-row > div {
         flex-direction: column !important;
         width: 100% !important;
     }
@@ -1023,6 +1025,51 @@ gradio-app,
     font-size: 0.95rem !important;
     padding: 10px 18px !important;
 }
+/* 主导航 Tab 均匀分布 */
+.gradio-container .main-nav-tabs > .tab-nav,
+.gradio-container .tabs.main-nav-tabs > .tab-nav {
+    display: flex !important;
+    width: 100% !important;
+    gap: 0 !important;
+}
+.gradio-container .main-nav-tabs > .tab-nav button,
+.gradio-container .tabs.main-nav-tabs > .tab-nav button {
+    flex: 1 1 25% !important;
+    min-width: 0 !important;
+    text-align: center !important;
+    justify-content: center !important;
+    border-radius: 0 !important;
+}
+/* 一键生成：上传区与转写区等大 */
+.pipeline-input-row {
+    align-items: stretch !important;
+    gap: 12px !important;
+}
+.pipeline-input-row > .gr-column,
+.pipeline-input-row > div {
+    flex: 1 1 50% !important;
+    min-width: 0 !important;
+    width: 50% !important;
+    display: flex !important;
+    flex-direction: column !important;
+}
+.pipeline-input-row .block,
+.pipeline-input-row .form {
+    flex: 1 1 auto !important;
+    height: 100% !important;
+}
+.pipeline-input-row .audio-container,
+.pipeline-input-row .upload-container {
+    flex: 1 1 auto !important;
+    min-height: 220px !important;
+    display: flex !important;
+    flex-direction: column !important;
+    justify-content: center !important;
+}
+.pipeline-input-row textarea {
+    min-height: 220px !important;
+    height: 100% !important;
+}
 .gradio-container .tab-nav button.selected {
     color: #ffffff !important;
     background: #1e3a5f !important;
@@ -1305,34 +1352,38 @@ def build_app() -> gr.Blocks:
     with gr.Blocks(
         title="Trading Studio | 交易复盘配音中控",
     ) as demo:
-        with gr.Tabs():
+        with gr.Tabs(elem_classes=["main-nav-tabs"]):
             # ---- Tab 1: 一键生成（默认首页）----
             with gr.Tab("一键生成"):
                 gr.HTML(MIC_HINT_HTML)
                 gr.Markdown(
                     "上传碎碎念录音，系统自动完成 **识别 → 润色 → 合成** 全流程。"
                 )
-                with gr.Row():
+                with gr.Row(equal_height=True, elem_classes=["pipeline-input-row"]):
                     pipe_audio = gr.Audio(
                         label="复盘录音",
                         type="filepath",
                         sources=["upload", "microphone"],
+                        scale=1,
                     )
                     pipe_manual = gr.Textbox(
                         label="或手动输入转写（跳过识别）",
-                        lines=4,
+                        lines=8,
                         placeholder="若已有转写文本，可直接粘贴，留空则走 Whisper 识别",
+                        scale=1,
+                        elem_classes=["bright-input"],
                     )
                 skip_polish_cb = gr.Checkbox(
                     label="跳过 Gemma4 润色（仅测试 TTS）",
                     value=False,
                 )
-                pipe_voice = gr.Radio(
-                    label="配音音色（本地 ChatTTS）",
-                    choices=voice_choice_labels(),
-                    value=default_voice_label(),
-                    elem_classes=["voice-radio"],
-                )
+                with gr.Accordion("🎚️ 配音音色", open=False):
+                    pipe_voice = gr.Radio(
+                        label="配音音色（本地 ChatTTS）",
+                        choices=voice_choice_labels(),
+                        value=default_voice_label(),
+                        elem_classes=["voice-radio"],
+                    )
                 pipeline_btn = gr.Button("▶ 启动全流程", variant="primary", size="lg")
                 pipeline_log = gr.Textbox(label="流水线日志", lines=6, interactive=False)
                 with gr.Row(elem_classes=["pipeline-output-row"]):
@@ -1370,7 +1421,7 @@ def build_app() -> gr.Blocks:
                             "<span style='color:#94a3b8;font-size:0.9rem'>"
                             "本机显卡合成，无需 API。润色完成后在此选音色并点合成。</span>"
                         )
-                        with gr.Accordion("🎚️ 选择配音音色", open=True):
+                        with gr.Accordion("🎚️ 配音音色", open=False):
                             tts_voice = gr.Radio(
                                 label="配音音色（本地 ChatTTS）",
                                 choices=voice_choice_labels(),