/* 里程碑数据模块 */
.about-lists-v1{
    width: 100%;
    background: #f3f3f3;
    padding: 20px  20px;
    margin-top: 40px;
    margin-bottom: 20px;
}
.about-lists-v1 .wrap{
    max-width:1300px;
    margin:0 auto;
}
/* 标题区域 */
.title-group{
    text-align:center;
    margin-bottom:50px;
}
.main-title{
    font-size:29px;
    font-weight:700;
    line-height:1.5;
    margin:0 0 20px;
}
.sub-title{
    font-size:17px;
    line-height:1.5;
    margin-bottom:20px;
}
/* 卡片网格 4列布局 */
.data-list{
    display:grid;
    grid-template-columns: repeat(4,1fr);
    gap:50px 30px;
}
/* 单个卡片项 */
.data-item{
    position:relative;
    padding-top:32px;
}
/* 顶部红色圆形数字 */
.num-circle{
    width: 100px;
    height: 100px;
    background:#fff;
    border-radius: 50%;
    box-shadow: 0 3px 6px #ccc;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:28px;
    color:#ff2222;
    font-weight:bold;
    position:absolute;
    left: 50%;
    top: -20px;
    transform:translateX(-50%);
    z-index:2;
}
/* 白色正文卡片 带阴影 */
.text-box{
    background:#ffffff;
    padding: 50px 10px 22px;
    border-radius:12px;
    box-shadow:0 4px 8px #c9c9c9;
}
.text-box p{
    margin:0 0 15px;
    font-size:17px;
    line-height:1.5;
    text-align:center;
}

/* 可选：移动端自适应 小屏幕变成2列 */
@media(max-width:992px){
    .data-list{
        grid-template-columns: repeat(2,1fr);
        gap:30px 20px;
    }
    .main-title{
        font-size:24px;
        margin:0 0 15px;
        padding:0 10px;
        text-align:center;
        box-sizing: border-box;
    }
    .about-lists-v1{
        padding:40px 15px;
    }
    .title-group{
        margin-bottom:30px;
    }
    .text-box{
        padding:30px 10px 20px;
    }
    .num-circle{
        width:70px;
        height:70px;
        font-size:22px;
        top:-15px;
    }
}

/* 手机端适配 */
@media(max-width:575px){
    .data-list{
        grid-template-columns:1fr;
        gap:25px;
    }
    .main-title{
        font-size:24px;
    }
    .text-box p{
        font-size:16px;
    }
    .num-circle{
        width:60px;
        height:60px;
        font-size:20px;
    }
}