#site_center {text-align:center;}
#main {
  margin:0 auto;
  width:870px;
  text-align:left;
}

.col_1, .col_2, .col_3, .col_box_1, .col_box_2{ float:left;}

.row_1 {
  width:100%;
  padding-bottom:30px;
}
.row_1 .col_1{width:492px;}
.row_1 .col_2{
  width:348px;
  height:161px;
}

.block_2 .col_1{width:445px; margin-right:37px}
.block_2 .col_2{width:320px;}

.width {width:100%}

.box {width:100%}

/*======= index.html =======*/
#page1 #content .block_2 .col_box_1 {width:147px; margin-right:13px}
#page1 #content .block_2 .col_box_2 {width:147px;}
/*=========================*/


/*======= index-1.html =======*/
#page2 #content .block_2 .col_box_1 {width:110px}
#page2 #content .block_2 .col_box_2 {width:320px;}
/*=========================*/

/*======= index-2.html =======*/
#page3 #content .row_1 .col_1 .col_box_1 { width:227px}
#page3 #content .row_1 .col_1 .col_box_2 { width:195px}
#page3 #content .block_2 .col_1 .col_box_1 {width:110px}
#page3 #content .block_2 .col_1 .col_box_2 {width:320px;}
#page3 #content .block_2 .col_2 .col_box_1 {width:85px}
#page3 #content .block_2 .col_2 .col_box_2 {width:222px;}
/*=========================*/

/*======= index-3.html =======*/
#page4 #content .block_2 .col_2 .col_box_1 {width:85px}
#page4 #content .block_2 .col_2 .col_box_2 {width:222px;}
/*=========================*/