diff --git a/src/views/game/components/RoomActions.vue b/src/views/game/components/RoomActions.vue
new file mode 100644
index 0000000..f0c118f
--- /dev/null
+++ b/src/views/game/components/RoomActions.vue
@@ -0,0 +1,134 @@
+<template>
+  <div class="room-actions">
+    <!-- 等待中：准备/取消准备按钮 -->
+    <template v-if="store.status === 'waiting' && store.isPlayer">
+      <button
+        class="room-actions__btn"
+        :class="isReady ? 'room-actions__btn--cancel' : 'room-actions__btn--ready'"
+        @click="toggleReady"
+      >
+        {{ isReady ? '取消准备' : '准备' }}
+      </button>
+      <button
+        v-if="store.isOwner"
+        class="room-actions__btn room-actions__btn--start"
+        @click="startGame"
+      >
+        开始游戏
+      </button>
+    </template>
+
+    <!-- 对局中：认输、求和 -->
+    <template v-if="store.isPlaying && store.isPlayer">
+      <button class="room-actions__btn room-actions__btn--danger" @click="resign">
+        认输
+      </button>
+      <button class="room-actions__btn room-actions__btn--warn" @click="requestDraw">
+        求和
+      </button>
+    </template>
+
+    <!-- 离开房间（始终显示） -->
+    <button class="room-actions__btn room-actions__btn--leave" @click="leaveRoom">
+      离开房间
+    </button>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed, inject } from 'vue'
+import { useRouter } from 'vue-router'
+import { useRoomStore } from '@/stores'
+import { storeToRefs } from 'pinia'
+import type { RoomSocket } from '@/common/websocket/roomSocket'
+
+const store = useRoomStore()
+const { players, currentUserId } = storeToRefs(store)
+const router = useRouter()
+
+/** 通过 inject 获取 WS 连接（父组件 provide） */
+const socket = inject<RoomSocket>('roomSocket')!
+
+/** 当前用户是否已准备 */
+const isReady = computed(() => {
+  const me = players.value.find((p) => p.userId === currentUserId.value)
+  return me?.ready ?? false
+})
+
+function toggleReady() {
+  socket.send('ready')
+}
+
+function startGame() {
+  socket.send('start')
+}
+
+function resign() {
+  socket.send('resign')
+}
+
+function requestDraw() {
+  socket.send('draw_request')
+}
+
+function leaveRoom() {
+  socket.send('leave')
+  socket.close()
+  router.push('/')
+}
+</script>
+
+<style scoped lang="scss">
+.room-actions {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+  margin-top: auto;
+  padding-top: 16px;
+}
+
+.room-actions__btn {
+  width: 100%;
+  padding: 10px 0;
+  border: none;
+  border-radius: 8px;
+  font-size: 13px;
+  font-weight: 600;
+  cursor: pointer;
+  transition: all 0.15s ease;
+
+  &--ready {
+    background-color: var(--color-primary);
+    color: var(--text-inverse);
+    &:hover { background-color: var(--color-primary-hover); }
+  }
+  &--cancel {
+    background-color: var(--bg-surface-hover);
+    color: var(--text-secondary);
+    &:hover { background-color: var(--border-default); }
+  }
+  &--start {
+    background-color: var(--color-success);
+    color: white;
+    &:hover { opacity: 0.9; }
+  }
+  &--danger {
+    background-color: transparent;
+    color: var(--color-danger);
+    border: 1px solid var(--color-danger);
+    &:hover { background-color: var(--color-danger); color: white; }
+  }
+  &--warn {
+    background-color: transparent;
+    color: var(--color-warning);
+    border: 1px solid var(--color-warning);
+    &:hover { background-color: var(--color-warning); color: white; }
+  }
+  &--leave {
+    background-color: transparent;
+    color: var(--text-tertiary);
+    border: 1px solid var(--border-default);
+    &:hover { border-color: var(--text-secondary); color: var(--text-primary); }
+  }
+}
+</style>
diff --git a/src/views/game/components/RoomSidePanel.vue b/src/views/game/components/RoomSidePanel.vue
new file mode 100644
index 0000000..a30ea59
--- /dev/null
+++ b/src/views/game/components/RoomSidePanel.vue
@@ -0,0 +1,212 @@
+<template>
+  <div class="room-side-panel">
+    <!-- 对手区域（非当前用户的第一个玩家） -->
+    <div v-if="opponent" class="room-side-panel__player-card">
+      <img :src="getAvatarUrl(opponent.avatar)" class="room-side-panel__avatar" />
+      <div class="room-side-panel__player-info">
+        <div class="room-side-panel__nickname">
+          {{ opponent.nickname }}
+          <span v-if="opponent.userId === store.creatorId" class="room-side-panel__crown">👑</span>
+        </div>
+        <div class="room-side-panel__role">
+          {{ opponentReady ? '✅ 已准备' : '⏳ 未准备' }}
+        </div>
+      </div>
+    </div>
+
+    <!-- 对局信息 -->
+    <div v-if="store.isPlaying || store.isFinished" class="room-side-panel__game-info">
+      <div class="room-side-panel__info-row">
+        <span>步数</span>
+        <span>{{ store.moves.length }}</span>
+      </div>
+      <div class="room-side-panel__info-row">
+        <span>当前轮次</span>
+        <span :class="{ 'room-side-panel__turn--me': isMyTurn }">
+          {{ isMyTurn ? '轮到你了' : '等待对手' }}
+        </span>
+      </div>
+    </div>
+
+    <!-- 我的信息 -->
+    <div v-if="me" class="room-side-panel__player-card room-side-panel__player-card--me">
+      <img :src="getAvatarUrl(me.avatar)" class="room-side-panel__avatar" />
+      <div class="room-side-panel__player-info">
+        <div class="room-side-panel__nickname">
+          {{ me.nickname }}
+          <span v-if="me.userId === store.creatorId" class="room-side-panel__crown">👑</span>
+        </div>
+        <div class="room-side-panel__role">
+          {{ meReady ? '✅ 已准备' : '⏳ 未准备' }}
+        </div>
+      </div>
+    </div>
+
+    <!-- 观战提示 -->
+    <div v-if="!store.isPlayer" class="room-side-panel__spectator-note">
+      👀 观战中
+    </div>
+
+    <!-- 对局结果 -->
+    <div v-if="store.isFinished && store.resultType" class="room-side-panel__result">
+      <div v-if="store.resultType === 'draw'" class="room-side-panel__result-text">
+        🤝 平局
+      </div>
+      <div
+        v-else
+        class="room-side-panel__result-text"
+        :class="isWinner ? 'room-side-panel__result-text--win' : 'room-side-panel__result-text--lose'"
+      >
+        {{ isWinner ? '🎉 你赢了！' : '💀 你输了' }}
+      </div>
+    </div>
+
+    <!-- 操作按钮组 -->
+    <RoomActions />
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed } from 'vue'
+import { useRoomStore } from '@/stores'
+import { storeToRefs } from 'pinia'
+import { getAvatarUrl } from '@/utils'
+import RoomActions from './RoomActions.vue'
+
+const store = useRoomStore()
+const { players, currentUserId, currentTurn, winner } = storeToRefs(store)
+
+/** 当前玩家自己 */
+const me = computed(() => players.value.find((p) => p.userId === currentUserId.value) ?? null)
+
+/** 对手（非当前用户的第一个玩家） */
+const opponent = computed(() => players.value.find((p) => p.userId !== currentUserId.value) ?? null)
+
+/** 当前用户是否已准备 */
+const meReady = computed(() => me.value?.ready ?? false)
+const opponentReady = computed(() => opponent.value?.ready ?? false)
+
+/** 当前是否轮到我了 */
+const isMyTurn = computed(() => currentTurn.value === currentUserId.value)
+
+/** 当前用户是否赢了 */
+const isWinner = computed(() => winner.value === currentUserId.value)
+</script>
+
+<style scoped lang="scss">
+.room-side-panel {
+  display: flex;
+  flex-direction: column;
+  width: 240px;
+  padding: 16px;
+  gap: 16px;
+  background-color: var(--bg-sidebar);
+  border-right: 1px solid var(--border-default);
+  flex-shrink: 0;
+  overflow-y: auto;
+}
+
+.room-side-panel__player-card {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  padding: 12px;
+  background-color: var(--bg-surface);
+  border-radius: 10px;
+  border: 1px solid var(--border-light);
+
+  &--me {
+    border-color: var(--color-primary-light);
+    background-color: var(--color-primary-light);
+  }
+}
+
+.room-side-panel__avatar {
+  width: 40px;
+  height: 40px;
+  border-radius: 50%;
+  object-fit: cover;
+}
+
+.room-side-panel__player-info {
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+}
+
+.room-side-panel__nickname {
+  font-size: 14px;
+  font-weight: 600;
+  color: var(--text-primary);
+  display: flex;
+  align-items: center;
+  gap: 4px;
+}
+
+.room-side-panel__crown {
+  font-size: 12px;
+}
+
+.room-side-panel__role {
+  font-size: 12px;
+  color: var(--text-secondary);
+}
+
+.room-side-panel__game-info {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+  padding: 10px 12px;
+  background-color: var(--bg-surface);
+  border-radius: 8px;
+  border: 1px solid var(--border-light);
+}
+
+.room-side-panel__info-row {
+  display: flex;
+  justify-content: space-between;
+  font-size: 13px;
+
+  span:first-child {
+    color: var(--text-secondary);
+  }
+  span:last-child {
+    font-weight: 600;
+    color: var(--text-primary);
+  }
+}
+
+.room-side-panel__turn--me {
+  color: var(--color-primary) !important;
+  animation: pulse 1.5s ease-in-out infinite;
+}
+
+.room-side-panel__spectator-note {
+  text-align: center;
+  font-size: 14px;
+  color: var(--text-tertiary);
+  padding: 12px;
+}
+
+.room-side-panel__result {
+  text-align: center;
+  padding: 12px;
+}
+
+.room-side-panel__result-text {
+  font-size: 18px;
+  font-weight: 700;
+
+  &--win {
+    color: var(--color-success);
+  }
+  &--lose {
+    color: var(--color-danger);
+  }
+}
+
+@keyframes pulse {
+  0%, 100% { opacity: 1; }
+  50% { opacity: 0.5; }
+}
+</style>