* {
    margin: 0;
    padding: 0;
}

html {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    /* position: fixed; */
    left: 0;
    top: 0; 
    overflow: hidden;
    bottom: 0;
    right: 0;
    background-color: #777;
}


body::-webkit-scrollbar { 

    width:0;

    height:0;
    display: none;

}
 
.container{
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;   
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-y: hidden;
}
.main {  
    width: auto;
    height: 100%; 
    position: absolute;   
    left: 0; 
}
.main-box{
    width: auto;
    height: 100%;
    display: flex;
    flex-direction: row;
    justify-content: space-between; 
    align-items: center;
} 
.mian-box img {
    display: block;
    width: 100%;
    user-select: none; /* ½ûÓÃÑ¡Ôñ */
    pointer-events: none; /* ½ûÓÃÍ϶¯ */
}
 

.item {
    height: auto;  
    height: 100%;
    max-height: 640px; 
    width: auto; display: inline-flex; 
} 
.item img{
    width: auto;
    height: 100%; 
}
div::-webkit-scrollbar {
    width: 0px;  
    height: 0px;  
}

div::-webkit-scrollbar-track {
    background: transparent;  
    border-radius: 10px;  
}

div::-webkit-scrollbar-thumb {
    background: rgba(167,167,167,0.5);  
    border-radius: 10px;  
}

div::-webkit-scrollbar-thumb:hover {
    background: #555;  
}

div::-webkit-scrollbar-track {
    background: transparent;  
    border-radius: 10px;  
}
html.mobile body .main{
    position: relative;
    overflow-y: scroll;
}

@media (orientation: landscape) {
    /* ºáÆÁ */ 
    html.mobile { 
        width: auto;
        height: 100vh;
    }   
  
}

@media (orientation: portrait) {
    html.mobile {
        transform-origin: 0 0;
        transform: rotateZ(90deg) translateY(-100%);
        width: auto;
        height: 100vw;
    }
    .mobile .main{
        height: 100%;
      }
      .mobile .container{
        display: block;
        justify-content: normal;
        align-items: normal; 
        width: 100vh;
        height: 100vw; 
        overflow: hidden; 
    }  
    
}