.main-btm {
    display: flex;
    justify-content: center;
    background-color: #323438;
    padding: 50px 0;
    margin-top: 80px;
}

.btm-g-1 {
    width: 20%;
}

.btm-g-2 {
    width: 25%;
}

.btm-g-3 {
    width: 30%;
}

.btm-g-4 {
    width: 25%;
    align-items: center;
}

.btms {
    display: flex;
    width: 1250px;
}

.btm-w {
    display: flex;
    flex-direction: column;
}

.btm-title {
    font-size: 14px;
    color: #333;
    color: #fff;
}

.btm-items {
    display: flex;
    flex-direction: column;
    margin-top: 20px;
    flex-wrap: wrap;
}

.btm-items-c {
    display: flex;
    flex-direction: row;
}

.btm-items-c .btm-item {
    margin-right: 10px;
}

.btm-item {
    color: #fff;
    font-size: 13px;
    margin: 2px 0;
}

.btm-imgs {
    margin-top: 30px;
}

.btm-imgs img {
    width: 100px;
}

.beian {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100vw;
    height: 40px;
    background-color: #121825;
}

.beian-no {
    color: #fff;
    font-size: 13px;
}