请问uni-app底端view总被van-bar遮蔽，该如何调整？

Question

如图可见vant组件的van-bar遮蔽了底端的固定按钮，很不美观，请问该如何调整呢？请赐教，不胜感激。
代码如下：

<template>
    
        <view class="header">
            <view class="depositMain">
                <view class="depositList_title">
                    {{deposit.name}}
                </view>
                <view class="deposit_tag">
                    <van-tag plain type="primary"  size="medium" style="margin-right:5px"><van-icon name="passed" style="margin-right:2px"/>保本保息</van-tag>
                    <van-tag plain type="primary"  size="medium" style="margin-right:5px">当日起息</van-tag>
                    <van-tag plain type="primary"  size="medium" style="margin-right:5px">随存随取</van-tag>
                </view>
                <view class="mainContent">
                    <view class="mainLeft">
                        <view class="annualRate_value">
                            {{deposit.annualRate}}
                        </view>
                        <view class="annualRate_text">
                            年利率
                        </view>
                    </view>
                    <view class="mainRight">
                        <view class="due" style="display: flex;margin-bottom: 5px;">
                            <view class="dueText" style="margin-right:2px">产品期限</view>
                            <span class="dueValue">{{deposit.due}}</span>
                        </view>
                        <view class="beginMoney"  style="display: flex;">
                            <view class="beginMoney_text" style="margin-right:2px">起存金额</view>
                            <span class="beginMoney_value">{{deposit.beginMoney}}</span>
                        </view>
                    </view>
                </view>
            </view>
            <view class="depositLight" style="padding-right:0px;padding-left:5px;min-height:25vw">
                <view class="depositLight_text" style="padding-left: 5px;">
                    存款亮点
                </view>
                
                <view class="depositLight_content">
                    <view class="depositLight_content_item">
                        <van-tag color="rgb(140,156,181)"  size="medium">当日起息</van-tag>
                        <view class="depositLight_content_item_text">
                            每日22:00前存入，当日起息（含节假日）
                        </view>
                    </view>
                    
                    <view class="depositLight_content_item">
                        <van-tag color="rgb(140,156,181)"  size="medium">随存随取</van-tag>
                        <view class="depositLight_content_item_text">
                            任意自然日存入，支持提前支取
                        </view>
                    </view>
                </view>
            </view>
                
            <view class="dealRule">
                <view class="ruleTitle">
                    交易规则
                </view>
                <view class="ruleContent">
                    <view class="timeText" style="display:flex;width:100%;position:relative">
                        <view class="redText">
                            <view>{{deposit.beginDate}}</view>
                            <view>预计起息日</view>
                        </view>
                        <view class="blackText" style="right:24.8%;">
                            <view>{{deposit.endDate}}</view>
                            <view style="text-align:right">到期日</view>
                        </view>
                        <view class="blackText" style="right:0;">
                            <view>到期日24点前</view>
                            <view style="text-align:left">本息到账</view>
                        </view>
                    </view>
                    
                    <view class="timeLine" style="display:flex;width:100%;position:relative">
                        <view class="redLine"></view>
                        <view class="redBar" style="background-color: white;">
                            持有期{{deposit.due}}
                        </view>
                        <view class="greyLine" style="position:absolute;right:24.8%;"></view>
                        <view class="greyBar" style="background-color: white;"></view> 
                        <view class="greyLine"></view> 
                    </view>
                    
                    <view class="timeBar" style="display:flex;width:100%;">
                        
                        <view class="redBar" style="border-right:1px white solid">
                            持有期{{deposit.due}}
                        </view>
                        <view class="greyBar"></view>
                    </view>
                    
                    
                </view>
            </view>
            
            <view style="margin-bottom: 50px;">
                <van-tabs active="a">
                  <van-tab title="计息规则" name="a">
                      <view class="ruleText">
                              <li class="ruleText_item">
                                  <span style="color:rgb(215,0,15);font-weight: bold;">提前支取收益：</span><span style="color:#B0ABAB">支持提前支取，提前支取部分按支取日我行活期存款利率计息，其余部分到期按存入日约定利率计息</span>
                              
                            </li>
                              <li>
                                  <span style="color:rgb(215,0,15);font-weight: bold;">满期综合收益：</span><span style="color:#B0ABAB">持有满期按存入日约定利率计息</span>
                                                                                                    
                              </li>
                      </view>
                                    
                  </van-tab>
                  <van-tab title="存入规则" name="b">
                      <view class="ruleText">
                              <li class="ruleText_item">
                                  <span style="color:rgb(215,0,15);font-weight: bold;">起存金额：</span><span style="color:#B0ABAB">{{deposit.beginMoney}}元起存，0.01元递增</span>
                              
                              </li>
                              <li>
                                  <span style="color:rgb(215,0,15);font-weight: bold;">存入时间：</span><span style="color:#B0ABAB">任意自然日存入，22:00前存入当日起息，当日取出不计息</span>
                                                                                                    
                              </li>
                      </view>
                  </van-tab>
                  <van-tab title="支取规则" name="c">
                      <view class="ruleText">
                              <li class="ruleText_item">
                                  <span style="color:rgb(215,0,15);font-weight: bold;">提前支取：</span><span style="color:#B0ABAB">支持全额提前支取与部分提前支取</span>
                              
                              </li>
                              <li>
                                  <span style="color:rgb(215,0,15);font-weight: bold;">到账时间：</span><span style="color:#B0ABAB">当日到账，以银行到账时间为准</span>
                                                                                                    
                              </li>
                      </view>
                  </van-tab>
                </van-tabs>    
                
            </view>
            
            <view>
                <van-goods-action>
                  <van-goods-action-icon icon="chat-o" text="反馈" @click="onClickIcon" />
                 
                  <van-goods-action-button text="立即购买" bind:click="onClickButton" />
                </van-goods-action>
            </view>
        
        </view>
        
    
    
</template>

<script>
    export default{
        data(){
            return{
                deposit:[],
                // active: 1,
            }
        },
        onLoad(option) {
            const item = JSON.parse(decodeURIComponent(option.item));
            console.log('上一个页面传递过来的参数对象',item );
            // 接下来就是你需要该对象数据做些什么，当然这里你可以直接赋值给data绑定的数据
            this.deposit = item;
            
        },
        methods:{
             onClickIcon() {
                console.log("this.deposit.id:",this.deposit.id)
                uni.navigateTo({
                     url:"feedback?id="+this.deposit.id,
                });
              },
            
              onClickButton() {
                Toast('点击按钮');
              },
        }
    
    }
    
</script>

<style>
    .depositMain,.depositLight{
        min-width:80vw;
        min-height:35vw;
        box-shadow:lightgrey 1px 1px 1px 1px;
        background-color:rgb(255,255,255) ;
        border-radius: 10px;
        padding: 15px;
        margin:0 10px;
        margin-top:20px;
    }
    
    .depositList_title,.depositLight_text,.ruleTitle{
        margin:5px 0;
        font-weight: bold;
        
    }
    
    .deposit_tag{
        display:flex
    }
    
    .header{
        position:absolute;
        height:32vw;
        top:0;
        width:100%;
        background-color: rgb(215,0,15);
        margin:0;
        padding: 0;
    }
    .mainContent{
        display: flex;
        margin-top: 10px;
        padding: 5px;
        position: relative;
    }
    .mainLeft{
        /* text-align: center; */
    }
    .mainRight{
        position: absolute;
        text-align: center;
        right:15px;
        margin: 10px;
    }
    .annualRate_value{
        font-size:24px;
        color: #FC505F;
        font-weight: bold;
    }
    .annualRate_text, .dueText,.beginMoney_text{
        font-size:12px;
        color:#999999
    }
    .dueValue,.beginMoney_value{
        font-size:14px;
        font-weight:600;
    }
    
    .depositLight_content{
        
        margin-top:10px;
    }
    .depositLight_content_item{
        display: flex;
        margin-bottom: 10px;
    }
    .depositLight_content_item_text{
        font-size: 12px;
        margin-left:5px;
        margin-top:3px;
        
    }
    .dealRule{
        margin:15px 10px;
    }
    .redBar{
        width:75%;
        height:15px;
        background-color: rgb(240,80,90);
        color:white;
        font-size:10px;
        text-align: center;
    }
    .greyBar{
        background-color: rgb(141,155,181);
        width:25%;
        height:15px
    }
    .redLine{
        background-color: rgb(240,80,90);
        height:15px;
        width:0.9px
    }
    .greyLine{
        background-color: rgb(141,155,181);
        height:15px;
        width:0.9px
    }
    
    .redText{
        font-size:10px;
        color: rgb(240,80,90);
    }
    
    .blackText{
        font-size:10px;
        position:absolute;
        
    }
    .ruleText{
        font-size:13px;
        margin:10px 15px;
        line-height: 1.5;
    }
    .ruleText_item{
        margin-bottom:10px;
    }
    
</style>