.pc_head{border-bottom:1px solid rgba(255,255,255,0.2);position:fixed;top:0;left:0;width:100%;z-index:9999;transition:all .5s;}
.pc_head .ctt{width:90%;display:flex;align-items:center;justify-content:space-between;}
.logo{width:250px;}
.logo a{display:block;}
.logo a img{width:100%;}
.pc_head ul{width:1200px;display:flex;justify-content:space-between;}
.pc_head ul li{position:relative}
.pc_head ul li a{padding:35px 0;color:#fff;display:block;font-size:18px;font-weight:500}
.pc_head ul li a:hover{font-weight:700;color:#0054a5 !important}
.pc_head ul li a.nav_active{font-weight:700;color:#0054a5 !important}
.pc_head .submenu{opacity:0;display:block;width:250px;position:absolute;background:rgb(17 69 147 / 80%);z-index:999;border-radius:5px;padding:15px 10px;top:70px;transition:all .5s;left:-50%;}
.pc_head .submenu li{}
.pc_head .submenu li a{text-align:center;color:#fff;font-weight:400;font-size:15px;display:block;padding:3px 0;}
.pc_head .submenu li a span{margin-left:5px;background: #e56b3c;font-size: 12px;padding: 3px 6px;border-radius: 100px;}
.pc_head .submenu li a:hover{color:#fff !Important}
.pc_head .submenu.sub_on{opacity:1;top:80px;}
.pc_head1{}
.pc_head2{width:100%;transform:translateX(-50%);left:50%;border-bottom:1px solid #e4e4e4;top:-450px;background:#fff;}
.pc_head2 .logo a img{}
.pc_head2 ul li a{color:#000;}
.scroll_up{top:-200px;}
.scroll_down{top:0px}
.mb_head{display:none;}

@media screen and (max-width:1800px){
  .pc_head .ctt{width:95%}
  .logo{width:200px;}
  .pc_head ul{width:1100px}
  .pc_head ul li a{font-size:16px;}
}

@media screen and (max-width:1400px){
  .pc_head .ctt{width:1400px}
}
@media screen and (max-width:768px){
  .pc_head{display:none;} .mb_bg{opacity:0;background:rgba(0,0,0,0.3);position:fixed;top:0;left:0;width:100%;height:100%;z-index:999;transition:all .5s; pointer-events: none;}
  .mb_bg_on{opacity:1;pointer-events: auto;}
  .mb_head{display:block;position:fixed;top:0;left:0;z-index:99999;width:100%;background:#fff;}

  .mb_top{display:flex;align-items:center;justify-content:space-between;padding:15px 0;width:90%;margin:0 auto;}
  .mb_nav{cursor:pointer;width:25px;}
  .mb_nav img{width:100%}
  .mb_logo{width:200px;}
  .mb_logo img{width:100%}
  .mb_call{width:40px;}
  .mb_call img{width:100%}
  .all_nav{z-index:99999;top:0;right:-100%;width:80%;height:100vh;background:rgb(17 45 87 / 90%);padding:35px 0;position:absolute;transition:all .5s;}
  .all_nav_open{right:0;}
  .all_nav ul{width:85%;margin:0 auto;margin-top:40px;}
  .all_nav_logo{width:80%;margin:0 auto;}
  .all_nav_logo img{width:150px;filter:invert(1) brightness(10);}
  .all_nav ul li{padding:10px 15px;border-bottom:1px solid rgba(255,255,255,0.1)}
  .all_nav ul li a{color:#fff;font-size:15px;text-align:left;display:block;}
  .nav_user{display: grid;grid-template-columns: repeat(2, 1fr);gap: 10px;width:80%;margin:0 auto;margin-top:50px}
  .nav_user a{border-radius:5px;color:#fff;font-size:13px;padding:15px 0;border:1px solid #fff;display:block;text-align:center;margin-top:15px;}
  .all_nav_close{cursor:pointer;position:absolute;top: 38px;
        right: 35px;width: 18px;}
  .all_nav_close img{display:block;width:100%;}
}