.f-center {
     width: 1050px;
     margin: 0 auto
 }

 .f-pic {
     width: 1050px;
     height: 130px;
     background-color: rgb(103, 194, 200);
     margin: 20px 0
 }

 .f-nav {
     height: 35px;
     border-bottom: 1px solid #cccccc;
     border-top: 1px solid #cccccc;
     line-height: 35px;
     color: #5f5f5f
 }

 .f-left {
     width: 230px;
     float: left;
 }

 .menu_itmm {
     background-color: rgb(103, 194, 200);
     color: white;
     margin-top: 20px;
     width: 230px;
     height: 45px;
     border-top: 2px solid rgb(220, 184, 158);
     line-height: 45px;
     text-align: center;
     font-size: 18px;
 }

 .menu_itm {
     color: rgb(122, 122, 122);
     margin-top: 20px;
     width: 230px;
     height: 45px;
     background-color: rgb(248, 248, 248);
     border-top: 2px solid rgb(220, 184, 158);
     line-height: 45px;
     text-align: center;
     font-size: 18px;
 }

 .menu_itm a {
     color: rgb(122, 122, 122);
 }

 .menu_li a {
     color: rgb(122, 122, 122);
 }

 .menu_li {
     border-bottom: 1px solid #cccccc;
     border-right: 1px solid #cccccc;
     border-left: 1px solid #cccccc;
     overflow: hidden;
     max-height: 0px;
 }

 .p_li {
     width: 230px;
     height: 45px;
     line-height: 50px;
     text-align: center;
     font-size: 18px;
 }

 .f-right {
     background-color: rgb(248, 248, 248);
     color: #5f5f5f;
     width: 800px;
     float: right;
     margin-top: 20px;
     border-top: 2px solid rgb(103, 194, 200);
 }

 .f-cc {
     overflow: hidden;
     margin-bottom: 20px;
 }

 .arc {
     margin: 0 auto;
     width: 750px;
 }

 .arc img{display:block;margin:5% auto 10%;}

 a {
     color: white
 }

 .arc h2 {
     text-align: center;
     color: rgb(103, 194, 200);
     line-height: 70px;
 }

 .arc p {
      text-align: center;
      line-height: 30px;
      color: #cccccc;
     
    
 }

 .arc span {
 
     
       text-align: justify;
       line-height: 35px;
       font-size: 16px;
       display: block;
       margin: 30px;
 }