<div class="evaluate-box">
    <van-nav-bar safe-area-inset-top
        left-arrow
        @click-left="resultClick"
        title="问题反馈"
        fixed
      />
    <div class="eva-style">
      <van-cell
      required
          title="问题反馈类型"
          @click="feedbackClick"
          is-link
          :value="mapObj[feedBackData.pfType]"
          arrow-direction="down"
        />
    </div>
</div>

.evaluate-box {
  position: fixed;
  width: 100%;
  height: 100%;
  top: 0px;
  background-color: rgb(255, 255, 255);
    .eva-style {
         @supports (height: constant(safe-area-inset-top)) or
             (height: env(safe-area-inset-top)) {
             padding-top: calc(48px + constant(safe-area-inset-top));
             padding-top: calc(48px + env(safe-area-inset-top));
         }
         width: 100%;
    }
}