.main {
    padding-top: 65px;
}

.main .main-section {}

.main-section .main-inner {}
.main-inner .main-text-box {
    text-align: center;
    padding-top: 25px;
}
.main-text-box .main-title {
    font-size: 22px;
    font-weight: 700;
    color: #222;
}
.main-text-box .main-desc {
    padding-top: 40px;
    font-weight: 400;
    font-size: 16px;
    color: #666666;
}

.main-inner .nav-img-box {
    padding-top: 40px;
}
.nav-img-box img {
    width: 100%;
}
.main-inner .grid-img-box {
    padding-top: 40px;
    display: flex;
    justify-content: center;
}
.nav-img-box img {
    width: 100%;
    
}

.main-inner .app-box {
    padding-top: 20px;
}
.app-box .app-list {}
.app-list .app-item {
    display: flex;
    justify-content: center;
}
.app-item .item-box {
    padding-top: 20px;
}

.app-item .item-box:nth-child(even) {
    padding-left: 5px;
}
.app-item .item-box:nth-child(odd) {
    padding-right: 5px;
}

.item-box img {
    width: 180px;
    height: 80px;
}
.item-box .item-title {
    text-align: center;
    font-size: 16px;
    font-weight: 700;
    color: #222;
}

.main-inner .main-desc-box {
    padding-left: 34px;
    padding-top: 10px;
    padding-bottom: 150px;
}
.main-desc-box .desc-box {
    padding-top: 40px;
}

.desc-box .desc-title {
    font-size: 18px;
    font-weight: 700;
    color: #222;
}