.header-pc {
  position: fixed;
  z-index: 100;
}


main {
  width: 100vw;
  overflow-x: hidden;
}

.index-banner {
  width: inherit;
  height:calc(100vh - 195px);
  position: relative;
  width: 100%;
  overflow: hidden;

}


.main-content {
	
	top: 100%;
	left: 0;
	z-index: 10;
	width: 100%;
	height: auto;
	padding-top: 225px;
	background: white;
	overflow: auto;
	outline: none;
	transition: top 0.7s cubic-bezier(0.5,0,0.2,1) 0s;
}