/* 重置 */
body, h1, h2, h3, h4, h5, h6, hr, p, blockquote, dl, dt, dd, ul, ol, li, pre, form, fieldset, legend, button, input, textarea, th, td { margin:0; padding:0; }
body, button, input, select, textarea { font:12px/1.5tahoma, arial, \5b8b\4f53; }
h1, h2, h3, h4, h5, h6{ font-size:100%; }
address, cite, dfn, em, var { font-style:normal; }
code, kbd, pre, samp { font-family:couriernew, courier, monospace; }
small{ font-size:12px; }
ul, ol { list-style:none; }
a { text-decoration:none; color:inherit;}
a:hover { text-decoration:none; cursor: pointer;}
sup { vertical-align:text-top; }
sub{ vertical-align:text-bottom; }
legend { color:#000; }
fieldset, img { border:0; }
button, input, select, textarea { font-size:100%; }
table { border-collapse:collapse; border-spacing:0; }


.anim, .anim:after {
	animation-iteration-count: infinite;
	animation-duration: 1.3s;
}
.anim {
	-moz-animation: anim-out 0.75s;
	-webkit-animation: anim-out 0.75s;
	animation: anim-out 0.75s;
	cursor: pointer;
}

.anim {
	-moz-transform: translateY(-50%) translateX(-50%);
	-ms-transform: translateY(-50%) translateX(-50%);
	-webkit-transform: translateY(-50%) translateX(-50%);
	transform: translateY(-50%) translateX(-50%);
	position: absolute;
	top: 50%;
	left: 50%;
	z-index: 1;
	border-radius: 50%;
}
.anim:before {
	position: relative;
	content: '';
	display: block;
	margin-top: 100%;
}
.anim, .anim:after {
	animation-iteration-count: infinite;
	animation-duration: 1.3s;
}

.anim:after {
	-moz-animation: anim-out-pseudo 0.75s;
	-webkit-animation: anim-out-pseudo 0.75s;
	animation: anim-out-pseudo 0.75s;
}
.anim:after {
	content: '';
	position: absolute;
	top: 0;
	bottom: 0;
	left: 0;
	right: 0;
	border-radius: 50%;
}
.anim_container{
	width: 100%;
	top: 0;
	position: absolute;
	overflow: hidden;
}
@keyframes anim-out {
	0% {
	width: 0%;
	background: rgba(255,255,255,0.25);
	}
	100% {
		width: 100%;
		background: transparent;
	}
}
@keyframes anim-out-pseudo {
	0% {
	background: rgba(0,0,0,0.25);
	}
	100% {
	background: transparent;
	}
}
.none{
  display: none !important;
}

div, header, nav, main, section, footer,ul,li{
  box-sizing: border-box;
}

.clear:after{
  display: block;
  content: "";
  clear: both;
}

.flex-cen{
  display: flex;
  justify-content: center;
  align-items: center;
}

.flex-between{
  display: flex;
  justify-content: space-between;
  align-items: center;
}