html,
body {
    width: 100%;
    min-height: 100vh;
    overflow: hidden;
    overflow-y: scroll;
}

html {
    font-family: "Microsoft YaHei",Arial;
    /* font-family: PingFangSC-Regular, PingFang, "Microsoft Yahei", sans-serif, "宋体"; */
    -webkit-text-size-adjust: 100%;
    font-size: 62.5%!important;
    -webkit-tap-highlight-color: transparent;
}

body {
    margin: 0 auto;
    padding: 0;
    max-width: 960px;
    background-color: #f3f4f6;
    -webkit-overflow-scrolling: touch
}

* {
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
}

div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
code,
form,
input,
button,
textarea,
p,
blockquote,
th,
td,
address {
    padding: 0;
    margin: 0;
    border: 0;
}

ul,
ol {
    list-style: none;
}

a {
    background: transparent;
}

a:focus {
    outline: thin dotted;
}

a:active,
a:hover {
    outline: 0;
}

b,
strong {
    font-weight: bold;
}

hr {
    height: 0;
    -moz-box-sizing: content-box;
    box-sizing: content-box;
}

img {
    border: 0;
}

fieldset {
    padding: 0.35em 0.625em 0.75em;
    margin: 0 2px;
    border: 1px solid #c0c0c0;
}

legend {
    padding: 0;
    border: 0;
}

button,
input,
select,
textarea {
    margin: 0;
    font-family: inherit;
    font-size: 100%;
}

button,
input {
    line-height: normal;
}

button,
select {
    text-transform: none;
}

button,
html input[type="button"],
input[type="reset"],
input[type="submit"] {
    cursor: pointer;
    -webkit-appearance: button;
}

button[disabled],
html input[disabled] {
    cursor: default;
}

input[type="checkbox"],
input[type="radio"] {
    padding: 0;
    box-sizing: border-box;
}

input[type="search"] {
    -webkit-box-sizing: content-box;
    -moz-box-sizing: content-box;
    box-sizing: content-box;
    -webkit-appearance: textfield;
}

input[type="search"]::-webkit-search-cancel-button,
input[type="search"]::-webkit-search-decoration {
    -webkit-appearance: none;
}

input::-webkit-input-placeholder,
textarea::-webkit-input-placeholder {
    color: #666;
    font-size: 1.4rem;
}

input:-moz-placeholder,
textarea:-moz-placeholder {
    color: #666;
    font-size: 1.4rem;
}

input::-moz-placeholder,
textarea::-moz-placeholder {
    color: #666;
    font-size: 1.4em;
}

input:-ms-input-placeholder,
textarea:-ms-input-placeholder {
    color: #666;
    font-size: 1.4rem;
}

button::-moz-focus-inner,
input::-moz-focus-inner {
    padding: 0;
    border: 0;
}

textarea {
    overflow: auto;
    vertical-align: top;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

input,
button,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}

a {
    color: #333;
    text-decoration: none;
    text-shadow: none;
}

a:hover,
a:focus {
    text-decoration: none;
}

a:focus {
    outline: thin dotted;
    outline: 5px auto -webkit-focus-ring-color;
    outline-offset: -2px;
}

img {
    vertical-align: middle;
}

.clearfix::before,
.clearfix::after {
    content: " ";
    display: table;
}

.clearfix::after {
    clear: both;
}


@media only screen and (min-width: 320px) {
    html {
        font-size: 58.5%!important;
    }
}

@media only screen and (min-width: 375px) {
    html {
        font-size: 62.5%!important;
    }
}

@media only screen and (min-width: 400px) {
    html {
        font-size: 70.5%!important;
    }
}

@media only screen and (min-width: 481px) {
    html {
        font-size: 80%!important;
    }
}

@media only screen and (min-width: 561px) {
    html {
        font-size: 95%!important;
    }
}

@media only screen and (min-width: 641px) {
    html {
        font-size: 110%!important;
    }
}