.main-nav {
    width: 100%;
    height: 70px;
    border-bottom: 1px solid #dcdcdc;
    text-align: center;
    margin-bottom: 70px;
}

.main-nav a {
    font-size: 14px;
    line-height: 68px;
    display: inline-block;
    margin-right: 100px;
    color: #3c3c3c;
}

.main-nav a.active {
    border-bottom: 2px solid #3c3c3c;
}

.main .main-body {

    margin-bottom: 38px;
}

.main .main-item {
    display: block;
    color: #000;
    width: 100%;
    border-bottom: 1px dashed #bfbfbf;
    box-sizing: border-box;
    padding-bottom: 40px;
    margin-top: 38px;
    transition: all .3s ease;
}

.main .main-item:hover{
    box-shadow: 1px 1px 15px #ccc;
}
.main .main-item:hover .item-txt h3 {
    color: #298e8d;
}

.main .main-item:hover .item-txt .p2 {
    color: #298e8d;
}

.main .item-img {
    width: 370px;
    height: 210px;
    float: left;
    border-radius: 6px;
}

.main .item-txt {
    width: 740px;
    margin-left: 44px;
    float: left;
}

.main .item-txt h3 {
    font-size: 20px;
    line-height: 1;
    margin-top: 26px;
    margin-bottom: 26px;
}

.main .item-txt .p1 {
    text-align: justify;
    font-size: 14px;
    color: #999999;
    line-height: 1.8;
}

.main .item-txt .p2 {
    letter-spacing: 0;
    text-align: right;
    font-size: 14px;
    color: #666666;
    margin-top: 40px;
}

.main .item-time {
    margin-top: 26px;
    width: 100px;
    height: 152px;
    background-color: #fff;
    border-radius: 6px;
}

.main .item-time p {
    line-height: 1;
    color: #999999;
    text-align: center;
}

.main .item-time .p1 {
    width: 100%;
    font-size: 48px;
    margin-top: 40px;
    margin-bottom: 22px;
}

.main .item-time .p2 {
    font-size: 16px;
}