.titlelist {
    border-bottom: 1px solid #e1e1e1;
}

.titlelist ul li {
    display: inline-block;
    margin-right: 60px;
    line-height: 60px;
}

.titlelist ul li a {
    font-size: 16px;
    color: #666666;
}

.titlelist ul li:hover a {
    color: #333333;
}

.titlelist ul li.on::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 9px;
    background: url('../img/second/triangle.png') no-repeat;
    margin-right: 8px;
}

.titlelist ul li.on a,
.titlelist ul li.on:hover a {
    color: #204eb4;
}

.contentmain {
    padding: 30px 0 60px;
}

.box {
    position: relative;
    margin-bottom: 30px;
}

.bg {
    width: 100%;
    height: 366px;
    background: url('../img/second/ex_bg.jpg') no-repeat;
    position: absolute;
}

.bg:nth-of-type(1) {
    top: 0;
}

.bg:nth-of-type(2) {
    bottom: 0;
}

.box dl {
    width: 512px;
    height: 366px;
    z-index: 10;
}

.box dl:nth-of-type(1),
.box dl:nth-of-type(2) {
    margin-bottom: 30px;
}

.box dl:nth-of-type(1),
.box dl:nth-of-type(3) {
    margin-right: 28px;
}

.box dl dt {
    width: 400px;
    height: 266px;
    margin: 0 auto;
}

.box dl dd {
    width: 512px;
    height: 100px;
    padding: 0 30px;
    transition: all 0.4s;
}

.box dl dd a {
    font-size: 20px;
    line-height: 30px;
    color: #ffffff;
}

.box dl:nth-of-type(1) dd,
.box dl:nth-of-type(4) dd {
    background: linear-gradient(to right, #337bc1, #4f5de2);
}

.box dl:nth-of-type(1) dd:hover,
.box dl:nth-of-type(4) dd:hover {
    background: linear-gradient(to right, #4f5de2, #337bc1);
}

.box dl:nth-of-type(2) dd,
.box dl:nth-of-type(3) dd {
    background: linear-gradient(to right, #fa5657, #cd7a3c);
}

.box dl:nth-of-type(2) dd:hover,
.box dl:nth-of-type(3) dd:hover {
    background: linear-gradient(to right, #cd7a3c, #fa5657);
}

.page {
    text-align: center;
    position: relative;
}

.page img {
    width: auto;
    height: 16px;
    margin: 16px auto;
}

.page a,
.page span {
    width: 48px;
    height: 48px;
    text-align: center;
    font-size: 18px;
    line-height: 48px;
    color: #204fb4;
    display: inline-block;
    margin-right: 12px;
}

.page .prev,
.page .next {
    width: 120px;
    height: 48px;
    background-color: #204fb4;
    margin: 0;
}

.page .prev {
    position: absolute;
    left: 0;
}

.page .next {
    position: absolute;
    right: 0;
}

.page span.current {
    background-color: #204fb4;
    color: #ffffff;
}

.prev:hover,
.next:hover {
    opacity: 0.9;
}