/* 重置 */
*{
    margin: 0;
    padding: 0; 
    box-sizing: border-box;
}
html{
    font-size:50px;
}
body{
    touch-action: manipulation;
    -webkit-tap-highlight-color:rgba(255,0,0,0);
    font-size: .28rem;
    background: #fff;
}
body,
button, 
input, 
span,
p,
select, 
textarea{
    font-family: "Microsoft YaHei",tahoma,"Arial Unicode MS",Mingliu,Arial,Helvetica,sans-serif;
    outline: none;
}
h1, h2, h3, h4, h5, h6 { 
    font-weight: normal; 
}
ul, 
ol { 
    list-style: none; 
}
a {
    text-decoration: none; 
    color: inherit;
}
img{
    border: 0;
}
.img-box img{
    display: block;
    width: 100%;
}
.img-box-h img{
    display: block;
    width: 100%;
    height: 100%;
}


.mui-backdrop {
    position: fixed;
    z-index: 998;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-color: rgba(0,0,0,.3);
}


/* 通用 */
.container{
    max-width: 750px;
    margin: 0 auto;
    min-height: 100vh;
    font-size: .28rem;
}
.row{
    display: flex;
    flex-direction: row;
}
.column{
    display: flex;
    flex-direction: column;
}
.flex-1{
    flex: 1;
}
.align-items-center{
    align-items: center;
}
.align-items-end{
    align-items: flex-end;
}
.justify-content-center{
    justify-content: center;
}
.justify-content-end{
    justify-content: flex-end;
}
.overflow-h{
    overflow: hidden;
}

.absolute{
    position: absolute;
}
.relative{
    position: relative;
}
.fixed{
    position: fixed;
}
.sticky{
    position: sticky;
}
.left-0{
    left: 0;
}
.top-0{
    top: 0;
}
.right-0{
    right: 0;
}
.bottom-0{
    bottom: 0;
}


.f-size-24{
    font-size: .24rem;
}
.f-size-26{
    font-size: .26rem;
}
.f-size-28{
    font-size: .28rem;
}
.f-size-30{
    font-size: .30rem;
}
.f-size-32{
    font-size: .32rem;
}
.f-size-34{
    font-size: .34rem;
}
.f-size-36{
    font-size: .36rem;
}
.f-size-38{
    font-size: .38rem;
}
.f-size-40{
    font-size: .40rem;
}
.f-bold{
    font-weight: bold;
}

.p-l-10{
    padding-left: .1rem;
}
.p-l-20{
    padding-left: .2rem;
}
.p-l-30{
    padding-left: .3rem;
}
.p-r-10{
    padding-right: .1rem;
}
.p-r-20{
    padding-right: .2rem;
}
.p-r-30{
    padding-right: .3rem;
}
.p-t-10{
    padding-top: .1rem;
}
.p-t-20{
    padding-top: .2rem;
}
.p-t-30{
    padding-top: .3rem;
}
.p-b-10{
    padding-bottom: .1rem;
}
.p-b-20{
    padding-bottom: .2rem;
}
.p-b-30{
    padding-bottom: .3rem;
}

.m-l-10{
    margin-left: .1rem;
}
.m-l-20{
    margin-left: .2rem;
}
.m-l-30{
    margin-left: .3rem;
}
.m-r-10{
    margin-right: .1rem;
}
.m-r-20{
    margin-right: .2rem;
}
.m-r-30{
    margin-right: .3rem;
}
.m-t-10{
    margin-top: .1rem;
}
.m-t-20{
    margin-top: .2rem;
}
.m-t-30{
    margin-top: .3rem;
}
.m-b-10{
    margin-bottom: .1rem;
}
.m-b-20{
    margin-bottom: .2rem;
}
.m-b-30{
    margin-bottom: .3rem;
}