.layout{
	width:750px ;
	margin: 0 auto;
	overflow: hidden;
	position: relative;
}
html,
body{
	font-size: 40px;
}
img{
	max-width: 100%;
	display: block;
}
.a1{
    position: fixed;
    left: 20px;      /* 距离左边 20px */
    bottom: 20px;    /* 距离底部 20px */
    z-index: 11;
    right: auto;     /* 覆盖之前的 right */
    top: auto;       /* 覆盖之前的 top */
}

.a1 img{
    display: none;   /* 保持原样，交给 JS 控制显示隐藏 */
}

.a2{
    position: fixed;
    left: 20px;      /* 与 a1 同一列 */
    bottom: 180px;   /* 往上错开一点，避免重叠，你也可以改成 80/100 等 */
    z-index: 11;
    right: auto;
    top: auto;
}
.btn{
	position: fixed;
	left: 0;right: 0;
	bottom: 0;z-index: 999;
	margin: 0 auto;width: 750px;
}
.main-img {
    position: fixed;
    z-index: 90;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    z-index: 100050;
    background-color: rgba(0, 0, 0, 0.7);
    display: none;
}
.main-img img {
    width: 100%;
    height: auto;
    margin-bottom: -0px;
    vertical-align: middle;
}
.rule-page {
    margin: 0 auto;
    position: absolute;
    top: 20%;
    left: 0;
    right: 0;
    width:15rem;
    height: 17.25rem;
    overflow: hidden;
    border-radius: 0.125rem;
    z-index: 151;
    background-size: contain;
}
.rule-page .rule-nav {
    position: relative;
    /*background-color: #3e2020;*/
    height: 2.7rem;
    line-height: 2.7rem;
    color: #fffffd;
    font-size: 1.15rem;
    text-align: center;
}
.rule-nav img {
    position: absolute;
    right: 0.15rem;
    top: 0.15rem;
    width: 2.15rem;
    z-index: 9999;
}
.rule-content {
    position: relative;
    overflow: hidden;
}
.rule-wrapped {
    overflow-y: auto;
    height: 12.5rem;
    width: 14rem;
    margin: auto;
    -webkit-overflow-scrolling: touch;
}

.list{
	height: 1160px;
	width: 750px;
	margin: 0 auto;
	-webkit-box-sizing: border-box;
	-moz-box-sizing: border-box;
	-o-box-sizing: border-box;
	box-sizing: border-box;
	padding-top: 350px;
}
.hd{
	width: 100%;
}
.list img{
	display: block;
	margin: 0 auto 30px;
}
.maks .wida{
	width: 100%;display: block;
}
.maks{
	position: relative;display: none;
}
.maks .icons{
	position: absolute;right: 20px;
	top: 25px;
}
.layout .a1,
.layout .a2 {
    position: fixed;
    left: 20px !important;    /* 距离左侧 */
    right: auto !important;
    z-index: 11;
}

/* 下载按钮（button_ex0.png / button_040.png 这一组） */
.layout .a1 {
    bottom: 20px !important;  /* 靠近底部 */
    top: auto !important;
}

/* 客服按钮（button_030.png）往上挪一点，避免重叠 */
.layout .a2 {
    bottom: 100px !important; /* 你可以改成 80 / 120 自己调 */
    top: auto !important;
}