.banner-ctr {
    margin-top: 70px;
    height: calc(100vh - 70px);
}
.banner-ctr .banner {
    position: relative;
    height: inherit;
    overflow: hidden;
    display: flex;
    justify-content: center;
}
.banner-ctr .banner img,
.banner-ctr .banner .blr,
.banner-ctr .banner-info {
    position: absolute;
}
.banner-ctr .banner .blr {
    background-color: #0000006e;
    width: 100%;
    height: 100%;
}
.banner-ctr .banner-info {
    bottom: 80px;
    text-align: center;
    color: #fff;
}
.banner-ctr .banner-info h1 {
    font-size: 50px;
}
.banner-ctr .banner-info p {
    font-size: 26px;
}
.banner-ctr .banner-btns {
    margin-top: 80px;
}
.banner-ctr .banner-btns a {
    font-size: 18px;
    text-decoration: none;
    color: var(--color2);
    background-color: #fff;
    padding: 10px 20px;
    margin: 0 10px;
    border: 1px solid #fff;
}
.banner-ctr .banner-btns a:hover {
    color: #fff;
    background-color: transparent;
}
@media (max-width: 840px) {
    .banner-ctr .banner-info h1 {
        font-size: 48px;
    }
    .banner-ctr .banner-info p {
        font-size: 25px;
    }
    .banner-ctr .banner-btns {
        margin-top: 60px;
    }
}
@media (max-width: 650px) {
    .banner-ctr .banner-info h1 {
        font-size: 40px;
    }
    .banner-ctr .banner-info p {
        font-size: 21px;
    }
    .banner-ctr .banner-btns {
        margin-top: 40px;
    }
    .banner-ctr .banner-btns a {
        font-size: 17px;
    }
}
@media (max-width: 450px) {
    .banner-ctr .banner-info h1 {
        font-size: 30px;
    }
    .banner-ctr .banner-info p {
        font-size: 18px;
    }
    .banner-ctr .banner-btns {
        margin-top: 28px;
    }
    .banner-ctr .banner-btns a {
        font-size: 16px;
    }
}