/* banner */
.main-banner {
    margin-top: 30px;
}
.main-banner img {
    width: 100%;
}

/* 导航菜单 */
.nav-menu {
    height: 100px;
    box-shadow: 0 2px 5px 0 rgba(221,221,221,0.5);
}
.nav-menu .nav-content {
    width: 1320px;
    margin: 0 auto;
}
.nav-menu .nav-content img {
    margin: 0 5px;
}
.nav-menu .nav-content span {
    font-size: 20px;
    line-height: 100px;
    vertical-align: middle;
}
.nav-menu .nav-content a {
    font-size: 20px;
    line-height: 100px;
    vertical-align: middle;
}

/* 内容 */
.main-content {
    width: 1320px;
    margin: 64px auto 100px;
}
.main-content .application-row {
    margin-top: 30px;
    display: flex;
    flex-direction: row;
}
.main-content .application-row:first-child {
    margin-top: 0;
}
.main-content .application-row a {
    margin-left: 30px;
}
.main-content .application-row a:first-child {
    margin-left: 0;
}
.application-item {
    display: flex;
    align-items: center;
    justify-content: center;
}
.application-item span {
    position: absolute;
    font-size: 28px;
    display: block;
    color: white;
}
.application-item img {
    width: 420px;
    height: 300px;
}