fix(mpuniapp): 移除工作台原生白底导航栏标题与底部常驻悬浮出示名片码按钮，实现全沉浸式极简商务工作台

mpuniapp/pages/owner/workplace/index.uvue

@@ -159,15 +159,6 @@
       <!-- 底部安全区垫高 -->
       <view class="workplace-spacer"></view>
     </scroll-view>
-
-    <!-- 底部常驻单悬浮主 CTA 栏 (一屏仅1个主按钮) -->
-    <view class="workplace-cta-bar">
-      <view class="cta-inner">
-        <button class="primary-cta-btn" @click="handleOpenQrcode">
-          <text class="primary-cta-btn-text">{{ t('workplace.primary_cta') }}</text>
-        </button>
-      </view>
-    </view>
   </view>
 </template>
 
@@ -308,17 +299,19 @@ onMounted(() => {
   pointer-events: none;
 }
 
-/* 顶栏 */
+/* 顶栏 (适配沉浸式顶部安全区) */
 .workplace-topbar {
   display: flex;
   flex-direction: row;
   justify-content: space-between;
   align-items: center;
-  height: 48px;
+  height: calc(48px + env(safe-area-inset-top, 0px));
+  padding-top: env(safe-area-inset-top, 0px);
   padding-inline: 16px;
   background-color: var(--surface, #FFFFFF);
   border-bottom: 1px solid var(--border, #E3E7ED);
   z-index: 10;
+  box-sizing: border-box;
 }
 
 .workplace-identity {
@@ -776,42 +769,7 @@ onMounted(() => {
 }
 
 .workplace-spacer {
-  height: calc(88px + var(--window-bottom, 0px) + env(safe-area-inset-bottom, 0px));
-}
-
-/* 底部常驻悬浮主 CTA 栏 (一屏仅1个主按钮) */
-.workplace-cta-bar {
-  position: fixed;
-  left: 0;
-  right: 0;
-  bottom: var(--window-bottom, 0px);
-  padding: 12px 16px;
-  padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px));
-  background-color: rgba(255, 255, 255, 0.95);
-  backdrop-filter: blur(8px);
-  border-top: 1px solid var(--border, #E3E7ED);
-  z-index: 100;
-}
-
-.cta-inner {
-  width: 100%;
-}
-
-.primary-cta-btn {
-  height: 48px;
-  width: 100%;
-  border-radius: 12px;
-  background-color: var(--primary, #0B5CFF);
-  display: flex;
-  justify-content: center;
-  align-items: center;
-  box-shadow: 0 8px 20px rgba(11, 92, 255, 0.22);
-}
-
-.primary-cta-btn-text {
-  font-size: 16px;
-  font-weight: 600;
-  color: #FFFFFF;
+  height: calc(16px + var(--window-bottom, 0px) + env(safe-area-inset-bottom, 0px));
 }
 
 /* RTL 适配 */