.icon-arrow-a-left, .icon-arrow-a-right { font-size:36px; width: 50px; height: 50px; line-height: 50px; text-align: center; color: #fff; cursor:pointer;}
.icon-arrow-a-left { background-position: 0 0; height: 50px; width: 50px; }
.icon-arrow-a-left:hover, .icon-arrow-a-left.arrow-a-left_hover, .icon-arrow-a-left.arrow-a-left-hover { background-position: -60px 0; }
.icon-arrow-a-right { background-position: -120px 0; height: 50px; width: 50px; }
.icon-arrow-a-right:hover, .icon-arrow-a-right.arrow-a-right_hover, .icon-arrow-a-right.arrow-a-right-hover { background-position: -180px 0; }




#main {overflow: hidden; zoom: 1; position: relative; }
#index_b_hero { width: 1100px; height: 300px; margin: auto; position: relative; }
    #index_b_hero img { width: 1100px; height: 300px; }
    #index_b_hero .heros { width: 1100px; height: 300px; }
    #index_b_hero .hero-wrap { overflow: visible; position: absolute; }
    #index_b_hero .next, #index_b_hero .prev { filter: alpha(Opacity=70); opacity: .7; position: absolute; top: 50%; margin-top: -25px; margin-left: 0px; background-color: #303030; z-index: 3; }
    #index_b_hero .next:hover, #index_b_hero .prev:hover { background-color: #2d69cd; }
    #index_b_hero .next { margin: -25px 0px 0 0; 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; padding: 0px; z-index: 1; position: absolute; top: 0; left: 0; width: 1100px; height: 300px; overflow: hidden; left: 1920px;}
    #index_b_hero .mask-right, #index_b_hero .mask-left { z-index: 4; left: -1100px; filter: alpha(Opacity=50); opacity: .5; background: #fff; overflow: hidden; }
    #index_b_hero .mask-right { left: 1100px; }
    #index_b_hero .active { z-index: 2; left: 0; }