.background img {
    width: 100%;
}

a:hover {
    opacity: 0.7;
}

/*タイトル*/
.title {
    text-align: center;
    margin-top: 50px;
}

/*achieveエリア*/
.ach-area-all {
    display: flex;
    justify-content: center;
}

.ach-area {
    background:rgba(255,255,255,0.8);
    /* position: fixed; */
    display: flex;
    flex-wrap: wrap;
    top: 200px;
    padding: 120px 200px;
    text-align: center;
    justify-content: center;
}
/* .ach-area::before{
    display: block;
    content:"";
    min-width: 25%;
    order:1;
} */

.ach-area li {
    min-width: calc(100% / 4);
    padding: 10px;
    margin-bottom: 50px;
}

.ach-area img {
    width: 300px;
    height: auto;
    box-shadow: rgba(0, 0, 0, 0.17) 0px 3px 5px;
    border-radius: 5px;
}

.ach-area img:hover {
    transform: translateY(-10px);
    transition : 0.5s;
}

.ach-title {
    padding-top: 10px;
}

@media screen and (max-width: 1280px) {
    .ach-area {
        padding: 30px 20px;
    }
    
    .ach-area li {
        margin-bottom: 20px;
    }

    .ach-area span {
        font-size: 14px;
    }

    .ach-area::after {
        display: block;
        content:"";
        min-width: 300px;
        margin: 10px;
    }

}