refactor(private-detail): 退款弹窗去掉规则描述文字，仅保留时间档位和比例

miniprogram/src/pages/comprehensive/bookings/private-detail.vue

@@ -79,21 +79,16 @@
             <view class="refund-rules-header">
               <text>距开始时间</text>
               <text>退款比例</text>
-              <text>说明</text>
             </view>
             <view v-for="(rule, idx) in refundQuote.rules" :key="idx" class="refund-rule-row" :class="{ active: rule.description === refundQuote.applicable_tier_description }">
               <text>{{ formatHoursBefore(rule.hours_before_start, idx) }}</text>
               <text>{{ rule.refund_percentage }}%</text>
-              <text>{{ rule.description }}</text>
             </view>
           </view>
           <view class="refund-amount-box">
             <text class="refund-amount-label">本次退款金额</text>
             <text class="refund-amount-value">¥{{ refundQuote.refund_amount }}</text>
           </view>
-          <view class="refund-tips">
-            <text>{{ refundQuote.applicable_tier_description || '当前不可取消' }}</text>
-          </view>
         </view>
         <view class="refund-popup-footer">
           <button class="ghost-button refund-btn" @tap="closeRefundPopup">再想想</button>
@@ -339,9 +334,6 @@ const formatHoursBefore = (hours, idx) => {
   text {
     flex: 1;
     text-align: center;
-
-    &:first-child { flex: 0.8; }
-    &:last-child { flex: 1.4; }
   }
 }
 
@@ -355,9 +347,6 @@ const formatHoursBefore = (hours, idx) => {
   text {
     flex: 1;
     text-align: center;
-
-    &:first-child { flex: 0.8; }
-    &:last-child { flex: 1.4; text-align: left; }
   }
 
   &.active {
@@ -392,13 +381,6 @@ const formatHoursBefore = (hours, idx) => {
   color: $color-danger;
 }
 
-.refund-tips {
-  text-align: center;
-  font-size: 22rpx;
-  color: $text-color-muted;
-  margin-bottom: $spacing-md;
-}
-
 .refund-popup-footer {
   display: flex;
   gap: $spacing-md;