.ggt * {
    margin: 0;
    padding: 0;
}

.ggt {
    height: 0px;
    padding-top: 1.5%;
    padding-bottom: 1.5%;
}

.ggt-b {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    width: 100%;
    margin: 0 auto;
}

.ggt-b a {
    display: block;
    width: 24%;
    height: auto;
    margin: -36px .5%;
     background: url(https://u3.huatu.com/uploads/allimg/230209/655646-2302091633353Z.jpg) no-repeat; 
    background-size: 100% 100%;
    padding: 16px 10px;
    box-sizing: border-box;
}

.ggt-b a:first-of-type {
    margin-left: 0;
}

.ggt-b a:last-of-type {
    margin-right: 0;
}

.ggt-b a:hover {
    transform: translateY(-2px);
    transition: .3s;
}

.ggt-b a .ggt-b-tit {
    font-size: 24px;
    color: #08438d;
    text-align: center;
    font-weight: bold;
    line-height: 2;
}

.ggt-b a .ggt-b-tit span {
    color: #ff3c4a;
}

.ggt-b a .ggt-b-sm {
    font-size: 20px;
    color: #ffffff;
    text-align: center;
    line-height: 1.5;
    font-weight: bold;
}

@media only all and (max-width: 1600px) {
    .ggt-b a .ggt-b-tit {
        font-size: 20px;
    }
}

@media only all and (max-width: 1400px) {
    .ggt-b a .ggt-b-tit {
        font-size: 21px;
    }
}

@media only all and (max-width: 1200px) {
    .ggt-b a .ggt-b-tit {
        font-size: 20px;
    }
}

@media only all and (max-width: 1000px) {
    .ggt {
        padding: 4px 0;
    }
    .ggt-b {
        width: 98%;
    }
    .ggt-b a {
        display: block;
        width: 48%;
        height: auto;
        margin: .1rem 1%;
        padding: .25rem;
    }
    .ggt-b a .ggt-b-tit {
        font-size: .75rem;
    }
    .ggt-b a .ggt-b-sm {
        font-size: .75rem;
        color: #74211e;
        text-align: center;
    }
}