.wrap {
    width: 100%;
}
.main {
    width: 1400px;
    margin: 50px auto;
}
.main-r {
    width: 1000px;
}
.list-box {
    width: 100%;
    margin-top: 30px;
}
.list-box li {
    width: 100%;
    height: 55px;
    line-height: 55px;
    background: url('../img/list-dian.png') no-repeat left center;
    padding-left: 20px;
    box-sizing: border-box;
}
.list-box li:nth-child(5n) {
    height: auto;
    background: url('../img/list-dian.png') no-repeat left 24px;
    padding-bottom: 30px;
    border-bottom: 1px solid #e3e3e3;
    margin-bottom: 30px;
}
.list-box li:nth-child(20n) {
    padding-bottom: 0;
    margin-bottom: 0;
    border: none;
}
.list-box li a {
    max-width: 850px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 18px;
    color: #5d5d5d;
}
.list-box li span {
    font-size: 16px;
    color: #828282;
}
.list-box li a:hover {
    color: #b6232b;
}