@charset "utf-8";
/* CSS Document */

* { margin: 0; padding: 0; border: 0; }
img { display: block; }
.banner { margin: 0px auto; position: relative; width: 100%; height: 450px; overflow: hidden; zoom: 1; }
.banner img,.b_3 img,.b_4 img,.b_5 img { width: 1920px; margin-left: -960px; position: absolute; left: 50%; }
.b_1 { background:#f2f4f6; height:370px;}
.b_1 .box { width:1041px; margin:0 auto; position:relative;}
.b_1 .box a { position:absolute; display:block; z-index:999;}
.b_1 .box .bt1 { top:269px; left:51px;}
.b_1 .box .bt2 { top:269px; left:393px;}
.b_1 .box .bt3 { top:269px; left:735px;}
.b_2,.b_4 { margin:0 auto;}
.b_3 { margin: 0px auto; position: relative; width: 100%; height: 527px; overflow: hidden; zoom: 1; }
.b_5 { margin: 0px auto; position: relative; width: 100%; height: 154px; overflow: hidden; zoom: 1; }
.tel { width:1100px; margin:23px auto 0; position:relative; color:#fff; font-size:12px; text-align:right;}
.tel a { color:#fff; font-size:12px;}