.banner {
    height: 80vh;
    background: #000;
}
.banner .col-md-7 {
    margin-top: 10px;
}
.banner .col-md-7 .img1 {
    position: relative; 
    width: 100%;
    z-index: 1;
}
.banner .col-md-7 .img2 {
    position: absolute;
    width: 25%;
    margin-top: 28%;
    left: 40%;
    z-index: 2;
}

.banner .col-md-7 .img3 {
    position: absolute;
    width: 50%;
    margin-top: 22%;
    left: 30%;
    z-index: 3;
}
@keyframes img1 {
    0% {
        -webkit-transform: scale(0.5);
        opacity: 0
    }
    100% {
        -webkit-transform: scale(1);
        opacity: 1
    }
}
.banner .img1,
.banner .img2,
.banner .two {
    animation: img1 1s linear;
}
.banner .two {
    display: flex;
    align-items: center;
    margin-top: 2%;
    padding-left: 0;
}
.banner .two .title {
    width: 100%;
    color: white;
    font-size: 32px;
    font-weight: 600;
}
.banner .two p {
    width: 100%;
    color: white;
    font-size: 22px;
    padding: 15px 0;
}


/* detail */
.container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}
.container .row {
    width: 90%;
    margin-top: 2%;
}
.container .bt {
    margin: 3% 0;
}
.proImg {
    padding: 0;
    /* background: pink; */
}
.proImg img {
    width: 100%;
    height: 100%;

}

.proCont p {
    margin: 10px 0;

}
.bigTit {
    font-size: 28px;
    font-weight: 600;
}
.smTit {
    font-size: 24px;
    font-weight: 600;
    margin: 0;
}
.proAbstract {
    line-height: 1.8;
    text-align: justify;
}
.proText table {
    width: 100%;
    margin: 20px 0;
    border-collapse: collapse;
    text-align: center;
}

.proText table tr,
td {
    width: 50%;
    height: 6vh;
    font-family: "source";
    border: 1px solid #CCCCCC;
    align-items: center;
}

/* button */
.more {
    width: 120px;
    height: 45px;
    margin: 15px 0;
    background: #bebebe;
    color: #202020;
    font-size: 16px;
    border: 1px solid #bebebe;
    border-radius: 5px;
    transition: transform .2s;
  }
.more:hover{
    transform: scale(1.05);
}