/* General */
* {
    padding: 0;
    margin: 0;
}
body {
    margin: 0 auto;
    width: 1380px;
    color: #000;
    font-weight: normal;
    font-family: "Helvetica Neue",Helvetica,Arial,sans-serif;
    padding: 0;
    border: 0;
}

  header {
    padding: 20px 0;
    height: 84px;
    transition: all 0.5s;
    background: #fff;
  }

  h1 {
    font:normal bold 55px sans-serif;
     color:rgb(20,68,106);
     text-align: center;
     margin: 20px;
  }
  
  li{
    list-style-type: none;
    float: left;
/* nav-menu */
}
#menu {
    width: 1380px;
    margin: 20px auto;
    height: 55px;
    background-color:  rgb(2,68,106);
    position: relative;
    z-index: 999;
    text-align: center;
}


#menu li{
    float: left;
    width: 138px;
    line-height:20px;
    margin: 10px auto 2px;
    text-align: center;
    vertical-align: middle;
    position:relative;
    transition: height 1.5s;
    border:none;
}
#menu li a {
    font-size:19px; color: #FFFFFF;
    display:block;
    outline:0;
    text-decoration:none; 
    font-weight: bold;
    text-align: center;
}
#menu li:hover a {
    color: #cdced3; /*导航栏文字颜色 */
    text-align: center;
    font-weight: bold;
}
#menu li:hover .dropdown_1column {
    left:0px;
    top:38px;
}
.dropdown_1column{ /* 下拉菜单边框颜色*/
    margin: 0px auto;
    float: left;
    position: absolute;
    left: -999em;
    text-align: center;
    border: 1px solid #FFFFFF;
    border-top: none;
    background: #FFFFFF;
    width: 138px;
}
#menu li:hover div a { /* 下拉菜单文字颜色*/
font-size:14px;
color:rgb(17, 16, 16);
text-align: center;
font-weight: bold;
}

#menu li:hover div a:hover{color: rgb(48, 100, 133);} /*下拉带单鼠标停留颜色*/

#menu li ul {
list-style:none;
padding:5px 0;
margin:0;
}
#menu li ul li {
font-size:14px;
line-height:26px;
position:relative;
padding:0;
margin:0;
float:none;
text-align:center;
width:138px;
display:block;
}
#menu li ul li:hover {
background:none;
border:none;
padding:0;
margin:0;
}



.content {
    width: 1380px;
     border:2px solid rgb(0,49,79) ;
     border-radius: 10px;
     margin:80px auto 20px auto;
     text-align: center;
     padding-bottom:25px ;
 }
 .content h2 { 
     color: white;
     background-color:rgb(20,68,106);
     height: 20px;
     font-size: 25px;
     line-height: 20px;
     padding:15px 20px;
     margin:0;
     border-radius: 8px;
     text-align: left;
 }

 .content p { 
 text-align: justify;
 margin:30px;
 padding: 10px 20px;
 font-size: 24px;
 font-family:Arial ;
 line-height: 33px;
 }
 
 .footer {
    font-size: 16px;
    text-align: center;
    color:gray;
    margin:20px;
 }