.home-banner {
    overflow: hidden;
    height: 100vh;
    list-style: none;
    position: relative;
    transition: transform 0.5s ease;
}
.item{
    width: 100%;
    height: 100%;
    color: #fff;
    text-align: center;
    background-size: cover;
    position: relative;
}
.item::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(to bottom, 
        rgba(31, 9, 96, 1),
        rgba(31, 9, 96, 0.8));
    pointer-events: none; 
}
.item-title {
    z-index: 3;
    position: relative;
    width: 1122px;
    height: 348px;
    padding-top: 150px;
    padding-left: calc(50% - 561px);
}
.top-title {
    width: 100%;
    font-size: 72px;
    line-height: 96px;
}
.sub-title{
    width: 100%;
    height: 96px;
    font-size: 36px;
    line-height: 48px;
    margin-top: 50px;
}
.btn-box{
    width: 394px;
    height: 64px;
    display: flex;
    justify-content: space-between;
    padding-left: calc(50% - 197px);
    margin-top: 40px;
    position: absolute;
    bottom: 10%;
}
.know-more, .concat-us {
    width: 190px;
    height: 64px;
    display: flex;
    justify-content: space-around;
    line-height: 32px;
    box-sizing: border-box;
    align-items: center;
}
.arrow, .contact{
    padding-left: 0;
    width: 24px;
    height: 24px;
    vertical-align: middle;
}
.know-more-text, .concat-us-text{
    font-size: 24px;
}