.banner {
  position: relative;
  overflow: hidden;}

#main {
    overflow: hidden;
    zoom: 1;
    position: relative;}

#index_b_hero {
    width: 1340px;
    height: 400px;
    margin: auto;
    position: relative;}

#index_b_hero img {
    width: 1340px;
    height: 400px;}

#index_b_hero .heros {
    width: 1340px;
    height: 400px;}

#index_b_hero .hero-wrap {
    overflow: visible;
    position: absolute;}

#index_b_hero .next, #index_b_hero .prev {
    position: absolute;
    top: 50%;
    margin-top: -25px;
    margin-left: 5px;
    
    z-index: 3;
    width: 40px;
    height: 74px;}

#index_b_hero .next{
    background: url(images/prev.png) center center no-repeat;}
#index_b_hero .prev {
    margin: -25px 5px 0 0;
    background: url(images/next.png)  center center no-repeat;
    right: 0;}

#index_b_hero .disabled {
    background-color: #eee;}

#index_b_hero .mask-left, #index_b_hero .mask-right, #index_b_hero .hero {
    background: #fff;
    z-index: 1;
    position: absolute;
    top: 0;
    left: 0;
    width: 1340px;
    height: 400px;
    overflow: hidden;
    left: 1920px;}

#index_b_hero .mask-right, #index_b_hero .mask-left {
    z-index: 4;
    left: -1340px;
    opacity: .5;
    background: url(images/opacity.png);
    overflow: hidden;}

#index_b_hero .mask-right {
    left: 1340px;}

#index_b_hero .active {
    z-index: 2;
    left: 0;}


.first248169{ font-family: 宋体; background-color: #ffffff ;}
.ahover248169{ font-size: 9pt; color: #cc2222; font-family: 宋体 ;}
.leaderfont248169{ font-size: 9pt; color: #555555; font-family: 宋体 ;}
.secondlevelstyle248169{ font-size: 9pt;color:#222222; font-family: 宋体; text-decoration: none ;}
.firstlevelstyle248169{ line-height: 30px; font-family: 宋体; color: #222222; font-size: 9pt; font-weight: bold ;}
.avisited248169{ color: #222222 ;}
.secondtrstyle248169{ background-color: #ffffff ;}
.firsttrstyle248169{ background-color: #f1f8fd ;}