diff --git a/src/App.vue b/src/App.vue
index 514cf25..d062c6e 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -69,12 +69,7 @@
       <!-- 字幕区域（底部，不遮挡数字人主体） -->
       <div class="subtitle-overlay">
         <div class="subtitle-container">
-          <SubtitlePanel
-            v-model:mode="subtitleMode"
-            :ai-subtitle="currentAISubtitle"
-            :user-subtitle="currentUserSubtitle"
-            :messages="chatMessages"
-          />
+          <SubtitlePanel :ai-subtitle="currentAISubtitle" />
         </div>
       </div>
 
diff --git a/src/components/SubtitlePanel.vue b/src/components/SubtitlePanel.vue
index 806e831..20c4361 100644
--- a/src/components/SubtitlePanel.vue
+++ b/src/components/SubtitlePanel.vue
@@ -1,57 +1,6 @@
 <template>
   <div class="subtitle-panel">
-    <!-- 字幕模式下拉框 -->
-    <div class="subtitle-header">
-      <div class="dropdown-wrapper" :class="{ open: dropdownOpen }">
-        <button class="dropdown-trigger" @click="dropdownOpen = !dropdownOpen">
-          <span class="dropdown-label">{{ modeLabel }}</span>
-          <svg
-            class="dropdown-arrow"
-            viewBox="0 0 24 24"
-            width="14"
-            height="14"
-            fill="none"
-            stroke="currentColor"
-            stroke-width="2.5"
-            stroke-linecap="round"
-            stroke-linejoin="round"
-          >
-            <polyline points="6 9 12 15 18 9" />
-          </svg>
-        </button>
-        <Transition name="dropdown">
-          <div v-if="dropdownOpen" class="dropdown-menu">
-            <button
-              v-for="opt in modeOptions"
-              :key="opt.value"
-              class="dropdown-item"
-              :class="{ active: currentMode === opt.value }"
-              @click="selectMode(opt.value)"
-            >
-              <span class="item-icon">{{ opt.icon }}</span>
-              <span class="item-label">{{ opt.label }}</span>
-              <svg
-                v-if="currentMode === opt.value"
-                viewBox="0 0 24 24"
-                width="14"
-                height="14"
-                fill="none"
-                stroke="currentColor"
-                stroke-width="3"
-                stroke-linecap="round"
-                stroke-linejoin="round"
-              >
-                <polyline points="20 6 9 17 4 12" />
-              </svg>
-            </button>
-          </div>
-        </Transition>
-      </div>
-    </div>
-
-    <!-- 模式1：仅AI字幕 -->
     <div
-      v-if="currentMode === 'ai-only'"
       class="subtitle-content ai-only-mode"
       ref="scrollContainerRef"
     >
@@ -99,224 +48,23 @@
         等待AI回复...
       </div>
     </div>
-
-    <!-- 模式2：对话气泡 -->
-    <div
-      v-if="currentMode === 'bubble'"
-      class="subtitle-content bubble-mode"
-      ref="scrollContainerRef"
-    >
-      <div v-if="messages.length === 0" class="subtitle-placeholder">
-        <svg
-          viewBox="0 0 24 24"
-          width="20"
-          height="20"
-          fill="none"
-          stroke="currentColor"
-          stroke-width="1.5"
-          stroke-linecap="round"
-        >
-          <path
-            d="M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z"
-          />
-        </svg>
-        等待对话开始...
-      </div>
-      <div class="chat-list" ref="chatListRef">
-        <div
-          v-for="msg in messages"
-          :key="msg.id"
-          :class="[
-            'chat-bubble',
-            msg.role === 'user' ? 'bubble-user' : 'bubble-ai',
-          ]"
-        >
-          <div class="bubble-body">
-            <div
-              class="bubble-text"
-              :class="{
-                collapsed: isCollapsed(msg.id) && isLongText(msg.content),
-                'text-user': msg.role === 'user',
-                'text-ai': msg.role === 'ai',
-              }"
-              :ref="(el) => setMsgRef(msg.id, el)"
-            >
-              {{ msg.content }}
-            </div>
-            <button
-              v-if="isLongText(msg.content)"
-              class="expand-btn"
-              @click="toggleCollapse(msg.id)"
-            >
-              {{ isCollapsed(msg.id) ? "展开全部" : "收起" }}
-              <svg
-                viewBox="0 0 24 24"
-                width="12"
-                height="12"
-                fill="none"
-                stroke="currentColor"
-                stroke-width="2.5"
-                stroke-linecap="round"
-                stroke-linejoin="round"
-                :style="{
-                  transform: isCollapsed(msg.id)
-                    ? 'rotate(0deg)'
-                    : 'rotate(180deg)',
-                  transition: 'transform 0.2s',
-                }"
-              >
-                <polyline points="6 9 12 15 18 9" />
-              </svg>
-            </button>
-          </div>
-        </div>
-      </div>
-    </div>
-
-    <!-- 模式3：合并气泡 -->
-    <div
-      v-if="currentMode === 'merged'"
-      class="subtitle-content merged-mode"
-      ref="scrollContainerRef"
-    >
-      <div v-if="messages.length === 0" class="subtitle-placeholder">
-        <svg
-          viewBox="0 0 24 24"
-          width="20"
-          height="20"
-          fill="none"
-          stroke="currentColor"
-          stroke-width="1.5"
-          stroke-linecap="round"
-        >
-          <path
-            d="M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z"
-          />
-        </svg>
-        等待对话开始...
-      </div>
-      <div class="merged-list" ref="mergedListRef">
-        <div
-          v-for="(pair, idx) in pairedMessages"
-          :key="idx"
-          class="merged-bubble"
-        >
-          <div v-if="pair.user" class="merged-user-section">
-            <div
-              class="merged-text text-user"
-              :class="{
-                collapsed:
-                  isCollapsed(pair.user.id) && isLongText(pair.user.content),
-              }"
-            >
-              {{ pair.user.content }}
-            </div>
-            <button
-              v-if="isLongText(pair.user.content)"
-              class="expand-btn"
-              @click="toggleCollapse(pair.user.id)"
-            >
-              {{ isCollapsed(pair.user.id) ? "展开全部" : "收起" }}
-              <svg
-                viewBox="0 0 24 24"
-                width="12"
-                height="12"
-                fill="none"
-                stroke="currentColor"
-                stroke-width="2.5"
-                stroke-linecap="round"
-                stroke-linejoin="round"
-                :style="{
-                  transform: isCollapsed(pair.user.id)
-                    ? 'rotate(0deg)'
-                    : 'rotate(180deg)',
-                  transition: 'transform 0.2s',
-                }"
-              >
-                <polyline points="6 9 12 15 18 9" />
-              </svg>
-            </button>
-          </div>
-          <div v-if="pair.ai" class="merged-ai-section">
-            <div
-              class="merged-text text-ai"
-              :class="{
-                collapsed:
-                  isCollapsed(pair.ai.id) && isLongText(pair.ai.content),
-              }"
-            >
-              {{ pair.ai.content }}
-            </div>
-            <button
-              v-if="isLongText(pair.ai.content)"
-              class="expand-btn"
-              @click="toggleCollapse(pair.ai.id)"
-            >
-              {{ isCollapsed(pair.ai.id) ? "展开全部" : "收起" }}
-              <svg
-                viewBox="0 0 24 24"
-                width="12"
-                height="12"
-                fill="none"
-                stroke="currentColor"
-                stroke-width="2.5"
-                stroke-linecap="round"
-                stroke-linejoin="round"
-                :style="{
-                  transform: isCollapsed(pair.ai.id)
-                    ? 'rotate(0deg)'
-                    : 'rotate(180deg)',
-                  transition: 'transform 0.2s',
-                }"
-              >
-                <polyline points="6 9 12 15 18 9" />
-              </svg>
-            </button>
-          </div>
-        </div>
-      </div>
-    </div>
   </div>
 </template>
 
 <script setup lang="ts">
-import {
-  ref,
-  computed,
-  watch,
-  nextTick,
-  onMounted,
-  onBeforeUnmount,
-} from "vue";
-import type { ChatMessage, SubtitleMode } from "@/types";
+import { ref, watch, nextTick } from "vue";
 
 const props = defineProps<{
-  mode: SubtitleMode;
   aiSubtitle: string;
-  userSubtitle: string;
-  messages: ChatMessage[];
 }>();
 
-const emit = defineEmits<{
-  "update:mode": [value: SubtitleMode];
-}>();
-
-const currentMode = computed({
-  get: () => props.mode,
-  set: (val: SubtitleMode) => emit("update:mode", val),
-});
-
-const dropdownOpen = ref(false);
-// 滚动容器ref：指向 .subtitle-content（实际可滚动容器）
 const scrollContainerRef = ref<HTMLElement | null>(null);
 const aiSubtitleBarRef = ref<HTMLElement | null>(null);
 const aiSubtitleTextRef = ref<HTMLElement | null>(null);
 
-// ===== AI字幕自适应字号 =====
 const aiFontSize = ref(18);
 const aiTextOverflow = ref(false);
 
-// 计算AI字幕字号：根据文本长度动态调整
 const computeAIFontSize = () => {
   const text = props.aiSubtitle;
   if (!text) {
@@ -332,7 +80,6 @@ const computeAIFontSize = () => {
   else aiFontSize.value = 12;
 };
 
-// 检测AI字幕是否溢出
 const checkAIOverflow = () => {
   nextTick(() => {
     const bar = aiSubtitleBarRef.value;
@@ -352,118 +99,20 @@ const scrollAIToBottom = () => {
   }
 };
 
-// ===== 长文本折叠/展开 =====
-const COLLAPSE_THRESHOLD = 120; // 超过120字符视为长文本
-const collapsedIds = ref<Set<string>>(new Set());
-const msgRefs = new Map<string, HTMLElement>();
-
-const isLongText = (text: string): boolean => text.length > COLLAPSE_THRESHOLD;
-
-const isCollapsed = (id: string): boolean => collapsedIds.value.has(id);
-
-const toggleCollapse = (id: string) => {
-  if (collapsedIds.value.has(id)) {
-    collapsedIds.value.delete(id);
-  } else {
-    collapsedIds.value.add(id);
-  }
-  // 触发响应式更新
-  collapsedIds.value = new Set(collapsedIds.value);
+const scrollToBottom = () => {
+  const el = scrollContainerRef.value;
+  if (!el) return;
+  el.scrollTo({
+    top: el.scrollHeight,
+    behavior: "smooth",
+  });
 };
 
-const setMsgRef = (id: string, el: any) => {
-  if (el) msgRefs.set(id, el as HTMLElement);
-};
-
-// ===== 下拉框 =====
-const modeOptions = [
-  { value: "ai-only" as SubtitleMode, label: "AI字幕", icon: "💬" },
-  { value: "bubble" as SubtitleMode, label: "对话气泡", icon: "💭" },
-  { value: "merged" as SubtitleMode, label: "合并气泡", icon: "📋" },
-];
-
-const modeLabel = computed(() => {
-  return (
-    modeOptions.find((o) => o.value === currentMode.value)?.label || "AI字幕"
-  );
-});
-
-const selectMode = (val: SubtitleMode) => {
-  currentMode.value = val;
-  dropdownOpen.value = false;
-};
-
-const handleClickOutside = (e: MouseEvent) => {
-  const target = e.target as HTMLElement;
-  if (!target.closest(".dropdown-wrapper")) {
-    dropdownOpen.value = false;
-  }
-};
-
-onMounted(() => {
-  document.addEventListener("click", handleClickOutside);
-});
-
-onBeforeUnmount(() => {
-  document.removeEventListener("click", handleClickOutside);
-});
-
-// ===== 消息配对 =====
-const pairedMessages = computed(() => {
-  const pairs: { user: ChatMessage | null; ai: ChatMessage | null }[] = [];
-  let currentPair: { user: ChatMessage | null; ai: ChatMessage | null } = {
-    user: null,
-    ai: null,
-  };
-
-  for (const msg of props.messages) {
-    if (msg.role === "user") {
-      if (currentPair.user) {
-        pairs.push(currentPair);
-        currentPair = { user: msg, ai: null };
-      } else {
-        currentPair.user = msg;
-      }
-    } else {
-      currentPair.ai = msg;
-      pairs.push(currentPair);
-      currentPair = { user: null, ai: null };
-    }
-  }
-  if (currentPair.user || currentPair.ai) {
-    pairs.push(currentPair);
-  }
-  return pairs;
-});
-
-// ===== 监听变化 =====
-
-// 模式切换时：立即刷新内容并滚动到底部
-watch(
-  () => props.mode,
-  () => {
-    computeAIFontSize();
-    nextTick(() => {
-      checkAIOverflow();
-      scrollToBottom();
-      // AI模式切换后确保字幕滚动到底部
-      if (props.mode === "ai-only" && aiSubtitleBarRef.value) {
-        aiSubtitleBarRef.value.scrollTo({
-          top: aiSubtitleBarRef.value.scrollHeight,
-          behavior: "instant" as ScrollBehavior,
-        });
-      }
-    });
-  },
-);
-
-// AI字幕变化时：自适应字号 + 检测溢出 + 自动滚动
 watch(
   () => props.aiSubtitle,
   () => {
     computeAIFontSize();
     checkAIOverflow();
-    // 自动滚动AI字幕到底部
     nextTick(() => {
       if (aiSubtitleBarRef.value) {
         aiSubtitleBarRef.value.scrollTo({
@@ -474,55 +123,6 @@ watch(
     });
   },
 );
-
-// 消息变化时：自动滚动到底部 + 新消息默认折叠
-watch(
-  () => props.messages.length,
-  (newLen, oldLen) => {
-    // 新增的消息默认折叠
-    if (newLen > (oldLen ?? 0)) {
-      for (let i = oldLen ?? 0; i < newLen; i++) {
-        const msg = props.messages[i];
-        if (msg && isLongText(msg.content)) {
-          collapsedIds.value.add(msg.id);
-        }
-      }
-      collapsedIds.value = new Set(collapsedIds.value);
-    }
-
-    nextTick(() => {
-      scrollToBottom();
-    });
-  },
-);
-
-// 流式内容更新时：自动滚动到底部（消息数量不变但内容变化）
-watch(
-  () => {
-    const msgs = props.messages;
-    if (msgs.length === 0) return "";
-    // 监听最后一条消息的内容变化，用于流式更新时自动滚动
-    return msgs[msgs.length - 1].content;
-  },
-  () => {
-    nextTick(() => {
-      scrollToBottom();
-    });
-  },
-);
-
-/**
- * 将对话列表滚动到底部
- * 兼容不同内容量：内容少时无需滚动，内容超出可见区域时平滑滚动到底部
- */
-const scrollToBottom = () => {
-  const el = scrollContainerRef.value;
-  if (!el) return;
-  el.scrollTo({
-    top: el.scrollHeight,
-    behavior: "smooth",
-  });
-};
 </script>
 
 <style scoped lang="scss">
@@ -532,109 +132,6 @@ const scrollToBottom = () => {
   height: 100%;
 }
 
-/* ===== 下拉框 ===== */
-.subtitle-header {
-  display: flex;
-  align-items: center;
-  padding-bottom: 8px;
-  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
-  margin-bottom: 8px;
-  flex-shrink: 0;
-}
-
-.dropdown-wrapper {
-  position: relative;
-}
-
-.dropdown-trigger {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-  padding: 8px 14px;
-  background: rgba(255, 255, 255, 0.06);
-  border: 1px solid rgba(255, 255, 255, 0.1);
-  border-radius: 10px;
-  color: rgba(255, 255, 255, 0.75);
-  cursor: pointer;
-  font-size: 13px;
-  font-weight: 500;
-  transition: all 0.2s;
-
-  &:hover {
-    background: rgba(255, 255, 255, 0.1);
-    border-color: rgba(255, 255, 255, 0.18);
-  }
-
-  .dropdown-wrapper.open & {
-    background: rgba(255, 255, 255, 0.1);
-    border-color: rgba(108, 140, 255, 0.4);
-  }
-}
-
-.dropdown-arrow {
-  transition: transform 0.2s ease;
-  .dropdown-wrapper.open & {
-    transform: rotate(180deg);
-  }
-}
-
-.dropdown-menu {
-  position: absolute;
-  bottom: calc(100% + 8px);
-  left: 0;
-  min-width: 180px;
-  background: rgba(20, 25, 50, 0.97);
-  backdrop-filter: blur(12px);
-  border: 1px solid rgba(255, 255, 255, 0.12);
-  border-radius: 12px;
-  padding: 6px;
-  z-index: 100;
-  box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.5);
-}
-
-.dropdown-item {
-  display: flex;
-  align-items: center;
-  gap: 10px;
-  width: 100%;
-  padding: 10px 14px;
-  border-radius: 8px;
-  border: none;
-  background: none;
-  color: rgba(255, 255, 255, 0.65);
-  cursor: pointer;
-  font-size: 13px;
-  font-weight: 500;
-  transition: all 0.15s;
-
-  &:hover {
-    background: rgba(255, 255, 255, 0.08);
-    color: #fff;
-  }
-  &.active {
-    background: rgba(108, 140, 255, 0.15);
-    color: #6c8cff;
-  }
-  .item-icon {
-    font-size: 14px;
-  }
-  .item-label {
-    flex: 1;
-    text-align: left;
-  }
-}
-
-.dropdown-enter-active,
-.dropdown-leave-active {
-  transition: all 0.2s ease;
-}
-.dropdown-enter-from,
-.dropdown-leave-to {
-  opacity: 0;
-  transform: translateY(6px) scale(0.96);
-}
-
-/* ===== 字幕内容 ===== */
 .subtitle-content {
   flex: 1;
   min-height: 0;
@@ -672,7 +169,6 @@ const scrollToBottom = () => {
   font-size: 14px;
 }
 
-/* ===== 模式1：AI字幕 ===== */
 .ai-only-mode {
   display: flex;
   align-items: flex-end;
@@ -737,171 +233,4 @@ const scrollToBottom = () => {
     transform: translateX(-50%) scale(1.1);
   }
 }
-
-/* ===== 模式2：对话气泡 ===== */
-.bubble-mode {
-  .chat-list {
-    display: flex;
-    flex-direction: column;
-    gap: 8px;
-    padding: 2px 0;
-  }
-}
-
-.chat-bubble {
-  animation: bubbleSlide 0.35s ease;
-
-  &.bubble-user {
-    .bubble-body {
-      background: rgba(240, 242, 255, 0.92);
-      border-color: rgba(79, 110, 247, 0.12);
-      border-radius: 14px 14px 4px 14px;
-      margin-left: 24px;
-    }
-  }
-
-  &.bubble-ai {
-    .bubble-body {
-      background: rgba(20, 30, 50, 0.85);
-      border-color: rgba(52, 211, 153, 0.12);
-      border-radius: 14px 14px 14px 4px;
-      margin-right: 24px;
-    }
-  }
-}
-
-@keyframes bubbleSlide {
-  from {
-    opacity: 0;
-    transform: translateY(10px) scale(0.96);
-  }
-  to {
-    opacity: 1;
-    transform: translateY(0) scale(1);
-  }
-}
-
-.bubble-body {
-  padding: 8px 12px;
-  border: 1px solid;
-  min-width: 0;
-}
-
-.bubble-text {
-  font-size: 14px;
-  line-height: 1.6;
-  word-break: break-word;
-  overflow: hidden;
-  transition: max-height 0.35s ease;
-
-  &.text-user {
-    color: #1a1a1a;
-    text-shadow: none;
-  }
-
-  &.text-ai {
-    color: #ffffff;
-    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
-  }
-
-  &.collapsed {
-    max-height: 4.8em;
-    position: relative;
-
-    &::after {
-      content: "";
-      position: absolute;
-      bottom: 0;
-      left: 0;
-      right: 0;
-      height: 2em;
-      background: linear-gradient(transparent, rgba(10, 14, 30, 0.5));
-      pointer-events: none;
-      border-radius: 0 0 8px 8px;
-    }
-  }
-}
-
-/* ===== 展开/收起按钮 ===== */
-.expand-btn {
-  display: inline-flex;
-  align-items: center;
-  gap: 4px;
-  margin-top: 6px;
-  padding: 3px 10px;
-  background: rgba(255, 255, 255, 0.06);
-  border: 1px solid rgba(255, 255, 255, 0.1);
-  border-radius: 6px;
-  color: rgba(255, 255, 255, 0.55);
-  font-size: 11px;
-  cursor: pointer;
-  transition: all 0.2s;
-
-  &:hover {
-    background: rgba(255, 255, 255, 0.1);
-    color: rgba(255, 255, 255, 0.8);
-    border-color: rgba(255, 255, 255, 0.2);
-  }
-}
-
-/* ===== 模式3：合并气泡 ===== */
-.merged-mode {
-  .merged-list {
-    display: flex;
-    flex-direction: column;
-    gap: 8px;
-    padding: 2px 0;
-  }
-}
-
-.merged-bubble {
-  background: rgba(255, 255, 255, 0.02);
-  border: 1px solid rgba(255, 255, 255, 0.04);
-  border-radius: 12px;
-  overflow: hidden;
-  animation: bubbleSlide 0.35s ease;
-}
-
-.merged-user-section {
-  padding: 8px 12px;
-  border-bottom: 1px solid rgba(79, 110, 247, 0.08);
-}
-
-.merged-ai-section {
-  padding: 8px 12px;
-}
-
-.merged-text {
-  font-size: 14px;
-  line-height: 1.6;
-  word-break: break-word;
-  overflow: hidden;
-  transition: max-height 0.35s ease;
-
-  &.text-user {
-    color: #303030ab;
-    text-shadow: none;
-  }
-
-  &.text-ai {
-    color: #ffffff;
-    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
-  }
-
-  &.collapsed {
-    max-height: 4.8em;
-    position: relative;
-
-    &::after {
-      content: "";
-      position: absolute;
-      bottom: 0;
-      left: 0;
-      right: 0;
-      height: 2em;
-      background: linear-gradient(transparent, rgba(10, 14, 30, 0.5));
-      pointer-events: none;
-    }
-  }
-}
 </style>
diff --git a/src/hooks/useDigitalHuman.ts b/src/hooks/useDigitalHuman.ts
index 582bd85..2c7a779 100644
--- a/src/hooks/useDigitalHuman.ts
+++ b/src/hooks/useDigitalHuman.ts
@@ -14,8 +14,8 @@ const SILENCE_TIMEOUT_MS = 5000;
 const MIN_VALID_DURATION_SEC = 0.5;
 // 播报超时保护（毫秒）：如果FINISHED回调未触发，自动恢复状态
 const BROADCAST_TIMEOUT_MS = 60000;
-const APPID = "i-sfkmd7h8ex6nd";
-const APP_KEY = "hs6b9nu9b080ap9hswgp";
+const APPID = "i-sfqpfp8qayj8e";
+const APP_KEY = "rdjqhnp5q50e010wvw0z";
 
 /**
  * 检测文本是否包含实质内容（去除空白和标点后仍有字符）
@@ -496,8 +496,8 @@ export function useDigitalHuman(options?: {
       token: token.value,
       wrapperId: "human-wrapper",
       connectParams: {
-        ttsPer: "CAP_4189",
-        figureId: "3999826",
+        ttsPer: "5135",
+        figureId: "4000288",
         resolutionHeight: 1920,
         resolutionWidth: 1080,
         inactiveDisconnectSec: 300,