body, html {
height: 100%;
font-family: "Microsoft YaHei", sans-serif;
color: #333;
overflow: hidden;
}

.container {
height: 100%;
position: relative;
overflow: hidden;
}

.body_home {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
overflow-y: auto;
transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
z-index: 10;
}

/* 隐藏body_home的滚动条 */
.body_home::-webkit-scrollbar {
display: none;
}
.body_home {
-ms-overflow-style: none;
scrollbar-width: none;
}

.body_b {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
transform: translateY(100%);
transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
z-index: 5;
overflow-y: auto;
}

.body_b.active {
transform: translateY(0);

}