.head.bg-t{ background-color: transparent; box-shadow:0 0 0 transparent; /*background-color:#ffffff00;backdrop-filter: blur(0px);*/}
.head{ /*background-color:#ffffff99;backdrop-filter: blur(5px);*/}
.head.bg-t .logo img{/*filter: invert(50%) brightness(200%);*/}
.head.bg-t .menu>li>a{/*color:#fff;*/}
.header-t {
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    background-image: linear-gradient(Rgba(255, 255, 255, 0.8) 0, Rgba(255, 255, 255, 0.5) 50%, Rgba(255, 255, 255, 0) 100%);
    height: 250px;
    z-index: 1;
    overscroll-behavior: none; 
    overscroll-behavior-y: contain;
    pointer-events: none;
}
.bg-t .menu_btn .nav-toggle .lines .line{
    /*background:#fff;*/
  }
  .bg-t  .nav-search{/*filter: invert(50%) brightness(200%);*/}