/* CSS Document */
@media screen and (max-width: 1520px)  {
         .ocean{
    height:750px;
} 
}
@media only screen and (max-width: 1440px) { 
         .ocean{
    height:650px;
}  
}
@media screen and (max-width: 1350px)  {
      .ocean{
    height:650px;
} 
          .nav-text1{
        font-size: 19px;
    }
    }
@media screen and (max-width: 1250px)  { 
     .ocean{
    height:600px;
} 
    .ocean_top{
    top: -100px;
}
}
@media screen and (max-width: 1150px)  {
        .ocean{
    height:570px;
} 
  }
@media screen and (max-width: 1070px)  {
       .ocean{
    height:520px;
} 
}
@media screen and (max-width: 990px)  {
       .ocean{
    height:480px;
} 
        .logo img{
    width:150px;
}
    .menu{    
    width: 250px;
    height: 35px;
    padding: 5px;
    font-size: 17px;  
}
     .Cbg{
    background: url("images/flybg01.png") top left  no-repeat; 
    background-size: 100% auto ;
} 
    .mt-sky{
    margin-top: 180px;
}
 .Ctitle {
    margin: 20px auto;
}
 .ft01{
        margin-top: 50px;
    }
  .copyright{
	font-size: 14px;
}
    }
@media screen and (max-width: 950px)  {
     .ocean{
    height:440px;
} 
}
@media screen and (max-width: 910px)  {
     .ocean{
    height:400px;
} 
     }
@media screen and (max-width: 885px)  {
/*
   .ocean{
    height:300px;
} 
*/
    .copy_block{
        display: block;
    }
}
@media screen and (max-width: 840px)  {
/*
  .ocean{
    height:270px;
} 
*/
}
@media screen and (max-width: 820px)  {
     .ocean{
    height:430px;
} 
          .ocean_top{
    top: 20px;
}
}
@media screen and (max-width: 770px)  {
    .bggray{
    background-size: 100% 100%;
}
.ft01{
        margin-top: 30px;
    }
/*
       .ocean{
    background-size:  100%;
         background-position: top 100%  center  ;
          
}  
    .ocean_top{
    position: absolute;
      width: 56%;
    margin: 0 22%;
    top: 70px;
}
*/
    .notice{
    padding: 30px 20px 10px 10px ;
}
  }
@media screen and (min-width: 767px)  {  
    .B{
        display:block;
    }
    .Bm{
        display:none;
    }
    .ocean_top{
        display:block;
    }
    .oceanM_top{
        display:none;
    }
    .fly_pic{
        display:block;
    }
    .fly_picM{
        display:none;
    }
    }
@media screen and (max-width: 767px)  {   
 
    .ocean{
    position: relative;
    width: 100%;     
    background-color: #acadc2;
     background: url("images/mainbgM.png") top left no-repeat;
    background-size: 100% 100%;
    height: 610px;
}
        .ocean_top{
        display:none;
    }
    .oceanM_top{
        display:block;
          top: 20px;
    }
    .Abg{
    background: url("images/3stepbgM.png") top left  no-repeat; 
        background-size: 100% 100%;
}
    .Bbg{
    background: url("images/skybgM.png") top left  no-repeat; 
    background-size: 100% 100% ;
} 
    .Cbg{
    background: url("images/flybgM.png") top left  no-repeat; 
    background-size: 100% auto ;
} 
    .Dbg{
    background: url("images/lifebgM.png") top left  no-repeat; 
    background-size: 100%  100% ;
        background-color: #AED8F2;
} 
    .noticebg{
    background: url("images/notebgM.png") top left  repeat-y;
    background-size: 100% auto;
        background-color: #AED8F2;
}
    .Atitle img,.Btitle img,.Ctitle img,.Dtitle img{
        width: 280px;
    }
    .lifemt-60{
        margin-top: 60px;
    }
    .B{
        display:none;
    }
    .Bm{
        display: block;
    }  
    .Bbutton{
    width: 48%;
    margin: 30px 26%;
}
    .fbtn{
        margin-bottom: 20px;
    }
  .fly_pic{
        display:none;
    }
    .fly_picM{
        display:block;
    }
        .mt-4 {
    margin-top: -0.5rem !important;
}
/*
    .mb-C50{
        margin-bottom: 50px;
    }    
*/
    .mt-200{
    margin-top: 150px;
}
    .mb-20{
        margin-bottom: 0px;
    }
    .copyright-text{
    text-align: start;
}
    .footer-md-l{
        margin-left: 46px;
    }
     #btn_gotop img{
        width: 70px;
    }
}

@media screen and (max-width: 675px)  {
    
            .ocean{          
                height: 480px;
} 
    .oceanM_top img{
/*        width: 300px;*/
    }
    .logomenu{
    position: relative;
/*    width: 99%;*/
    margin: 0;
}
        .logo img{
    width:160px;
}
    .menu{    
    width: 200px;
    height: 35px;
    padding: 5px;
    font-size: 15px;  
        right: 0;
}    
}
@media screen and (max-width: 600px)  {   
 .ocean{
          
                height: 480px;
} 
     
      .oceanM_top{
    top: 30px;
}
    .Bnote{
        font-size: 16px;
     padding: 10px 0;
    }
}
@media screen and (max-width: 513px)  { 
            .ocean{
                height: 380px;
} 
        .oceanM_top img{
        width: 350px;
    }
     .menu{    
    width: 180px;
    height: 30px;
    padding: 3px;
    font-size: 14px;  
}
     .Atitle img,.Btitle img,.Ctitle img,.Dtitle img{
        width: 220px;
    }
}
@media screen and (max-width: 500px)  { 
      .logo img{
        width: 130px;
    }
.Ctitle{
    margin: 60px auto 10px;
}
    .accordion-button::after {
     width: 30px;
    height: 30px;
}
.accordion-button:not(.collapsed)::after {
    width: 30px;
    height: 30px;
}    
    .notice_title{
        font-size: 35px;
    } 
  }
@media screen and (max-width: 450px)  { 
        .ocean{
        height: 330px;
}  
      .ocean_topM img{
        margin: 0 30% 0 10%;
}
    .notice_title{
        font-size: 32px;
    } 
    .Atitle img,.Btitle img,.Ctitle img,.Dtitle img{
        width: 180px;
    }
    .accordion-item:first-of-type .accordion-button {
    border-radius: 30px;
}
.accordion-item:last-of-type .accordion-button.collapsed {
   border-radius: 30px;
     border:3px solid #fff;
}
.accordion-item:last-of-type {
    border-radius: 30px;
}
.accordion-item:first-of-type {
 border-radius: 30px;
}
}
@media screen and (max-width: 400px)  {
         .ocean{
        height: 300px;
}  
      .logo img{
        width: 100px;
    } 
      .ocean{
/*           height:300px;*/
} 
 .ocean_top{
        width: 60%;
        margin:3%  20% 0;
}  
    .mt-200 {
    margin-top: 100px;
}
    .mt-80{
        margin-top: 40px;
    }
    .Bnote{
        font-size: 14px;
     padding: 5px 0;
    }
     .notice_title{
        font-size: 28px;
    }
    .accordion-button::after {
     width: 28px;
    height: 28px;
}
.accordion-button:not(.collapsed)::after {
     width: 28px;
    height: 28px;
}
}
@media screen and (max-width: 380px)  {    
          .ocean{
           height:280px;
} 

    .oceanM_top img{
/*        margin: 0 30% 0 10%;*/
}
 .oceanM_top{
/*    top: 60px;*/
} 
    .notice_title{
        font-size: 25px;
    } 
}
@media screen and (max-width: 350px)  {
           .ocean{
           height:240px;
} 
     .logo{
        position: absolute;
        left: 0;
    }
        .menu {
        width: 164px;
        height: 25px;
        padding: 3px;
        font-size: 12px;
            border-radius: 10px;
    }
    .mt-50{
        margin-top: 35px;
    }   
.notice_title {
    font-size: 23px;
}
    .triangle-down {
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 16px solid #fff;
    top: -8px;
    margin-left: 8px;
}
    .mt-200 {
    margin-top: 70px;
}
}
@media screen and (max-width: 335px)  {
     .menu {
        width: 160px;
        height: 25px;
        padding: 3px;
        font-size: 12px;
            border-radius: 10px;
    }
  .ocean{
           height:240px;
} 
     .oceanM_top{
    top: 40px;
}
    .mt-date{
    margin-top: 42%;
}
    .notice_title {
    font-size: 20px;
}
}
@media screen and (max-width: 315px)  {
    .ocean{
           height:220px;
} 
     .notice_title {
    font-size: 17px;
}
}
@media screen and (max-width: 285px)  {
      .oceanM_top{
    top: 60px;
}
}