@media (orientation: landscape) and (min-width: 480px) and (min-aspect-ratio: 750 / 600) { 
  html,body { position:relative; overflow:hidden;width:100% !important; height:100%;padding:0;margin:0;}
  html::before {content: ""; position:fixed; top:0; left:0; height:100%; width:100%; background:#333; z-index:99999; }
  html::after {content: "\4e3a\4e86\66f4\597d\7684\4f53\9a8c\ff0c\8bf7\5c06\624b\673a\7ad6\8fc7\6765"; text-align:center; font-size:16px; color:#fff; position:absolute; top:50%; left:0; height:30px; width:100%; margin-top:50px; z-index:99999; }
  body::before  { content: "";position:absolute; z-index:99999; height:200px; width:100px; left:50%; top:50%; margin:-140px 0 0 -50px; color:#fff;background-image: url("data:image/webp;base64,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"); background-repeat:no-repeat; background-position:center center; background-size:100px auto; -webkit-transform:rotateZ(-90deg); }
} 

@media (orientation: landscape) and (min-width: 480px) and (min-aspect-ratio: 750 / 600) {
  html.input-focus::before{content:none;position:fixed;top:0;left:0;height:100%;width:100%;background:#333;z-index:99999;}
  html.input-focus::after{content:none;text-align:center;font-size:16px;color:#fff;position:absolute;top:50%;left:0;height:30px;width:100%;margin-top:50px;z-index:99999;}
  html.input-focus body::before{content:none;}
}

*,
*:before,
*:after {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  outline: none;
}

html {
  width: 100%;
  min-height: 100%;
  box-sizing: border-box;
  background: #1f1f1f;
}

body {
  width: 100vw;
  overflow-x: hidden;
  overflow-y: scroll;
  text-size-adjust: 100% !important;
  -webkit-text-size-adjust: 100% !important;
}

*::-webkit-scrollbar {
  width: 0 !important;
  display: none !important;
  opacity: 0 !important;
}

/* 移动端常用reset.css (无文字版本) */
/* reset */
html,body,div,p,ul,li,dl,dt,dd,em,i,span,a,img,input,h1,h2,h3,h4,h5 {margin:0;padding:0}
a,img,input {border:none;}
body{
  font: 14px/1.75  "FZLTYJT",-apple-system, "Helvetica Neue", Helvetica, Arial, sans-serif; 
  -webkit-tap-highlight-color: rgba(0,0,0,0);
}
a {text-decoration:none;}
ul,li{list-style: none}
/* 禁止长按链接与图片弹出菜单 */
/* a, img {
  -webkit-touch-callout: none; 
  
} */
/* 禁止选中文本（如无文本选中需求，此为必选项） */
/* html, body {
  -webkit-user-select: none;   
  user-select: none;
} */

div {
  display: block;
  box-sizing: border-box;
}

input {
  outline: none;
  user-select: none;
}

i {
  display: block;
}

img {
  display: block;
  object-fit: cover;
  object-position: center top;
}

.d-hide {
  display: none !important;
  font-size: 0; 
  text-indent: -999em;
}

.d-block {
  display: block !important;
}

/* ---------- bootstrap4 flex layout -------------- */
.p-static {
  position: static !important;
}

.p-relative {
  position: relative !important;
}

.p-absolute {
  position: absolute !important;
}

.d-flex {
  display: -ms-flexbox !important;
  display: flex !important;
}

.flex-0 {
  flex: 0;
}

.flex-1 {
  flex: 1;
}

.d-inline-flex {
  display: -ms-inline-flexbox !important;
  display: inline-flex !important;
}

.flex-row {
  -ms-flex-direction: row !important;
  flex-direction: row !important;
}

.flex-column {
  -ms-flex-direction: column !important;
  flex-direction: column !important;
}

.flex-row-reverse {
  -ms-flex-direction: row-reverse !important;
  flex-direction: row-reverse !important;
}

.flex-column-reverse {
  -ms-flex-direction: column-reverse !important;
  flex-direction: column-reverse !important;
}

.flex-wrap {
  -ms-flex-wrap: wrap !important;
  flex-wrap: wrap !important;
}

.flex-nowrap {
  -ms-flex-wrap: nowrap !important;
  flex-wrap: nowrap !important;
}

.flex-wrap-reverse {
  -ms-flex-wrap: wrap-reverse !important;
  flex-wrap: wrap-reverse !important;
}

.flex-fill {
  -ms-flex: 1 1 auto !important;
  flex: 1 1 auto !important;
}

.flex-grow-0 {
  -ms-flex-positive: 0 !important;
  flex-grow: 0 !important;
}

.flex-grow-1 {
  -ms-flex-positive: 1 !important;
  flex-grow: 1 !important;
}

.flex-shrink-0 {
  -ms-flex-negative: 0 !important;
  flex-shrink: 0 !important;
}

.flex-shrink-1 {
  -ms-flex-negative: 1 !important;
  flex-shrink: 1 !important;
}

.justify-content-start {
  -ms-flex-pack: start !important;
  justify-content: flex-start !important;
}

.justify-content-end {
  -ms-flex-pack: end !important;
  justify-content: flex-end !important;
}

.justify-content-center {
  -ms-flex-pack: center !important;
  justify-content: center !important;
}

.justify-content-between {
  -ms-flex-pack: justify !important;
  justify-content: space-between !important;
}

.justify-content-around {
  -ms-flex-pack: distribute !important;
  justify-content: space-around !important;
}

.align-items-start {
  -ms-flex-align: start !important;
  align-items: flex-start !important;
}

.align-items-end {
  -ms-flex-align: end !important;
  align-items: flex-end !important;
}

.align-items-center {
  -ms-flex-align: center !important;
  align-items: center !important;
}

.align-items-baseline {
  -ms-flex-align: baseline !important;
  align-items: baseline !important;
}

.align-items-stretch {
  -ms-flex-align: stretch !important;
  align-items: stretch !important;
}

.align-content-start {
  -ms-flex-line-pack: start !important;
  align-content: flex-start !important;
}

.align-content-end {
  -ms-flex-line-pack: end !important;
  align-content: flex-end !important;
}

.align-content-center {
  -ms-flex-line-pack: center !important;
  align-content: center !important;
}

.align-content-between {
  -ms-flex-line-pack: justify !important;
  align-content: space-between !important;
}

.align-content-around {
  -ms-flex-line-pack: distribute !important;
  align-content: space-around !important;
}

.align-content-stretch {
  -ms-flex-line-pack: stretch !important;
  align-content: stretch !important;
}

.align-self-auto {
  -ms-flex-item-align: auto !important;
  align-self: auto !important;
}

.align-self-start {
  -ms-flex-item-align: start !important;
  align-self: flex-start !important;
}

.align-self-end {
  -ms-flex-item-align: end !important;
  align-self: flex-end !important;
}

.align-self-center {
  -ms-flex-item-align: center !important;
  align-self: center !important;
}

.align-self-baseline {
  -ms-flex-item-align: baseline !important;
  align-self: baseline !important;
}

.align-self-stretch {
  -ms-flex-item-align: stretch !important;
  align-self: stretch !important;
}  
/* -------------- font ---------------- */
.font-20 {
  font-size: .2rem;
  line-height: .2rem;
}
.font-24 {
  font-size: .24rem;
  line-height: .24rem;
}
.font-26 {
  font-size: .26rem;
  line-height: .26rem;
}
.font-30 {
  font-size: .3rem;
  line-height: .3rem;
}
.font-34 {
  font-size: .34rem;
  line-height: .36rem;
}
.font-36 {
  font-size: .36rem;
  line-height: .36rem;
}
.font-38 {
  font-size: .38rem;
  line-height: .38rem;
}
.font-42 {
  font-size: .42rem;
  line-height: .42rem;
}
.font-50 {
  font-size: .5rem;
  line-height: .5rem;
}

.grey-0 {
  color: #929086;
}
.black-0 {
  color: #3d3d3d;
}
/* ------------- margin --------------- */
.mt-4 {
  margin-top: .04rem;
}

.mt-6 {
  margin-top: .06rem;
}

.mt-10 {
  margin-top: .1rem;
}

.mt-12 {
  margin-top: .12rem;
}

.mt-15 {
  margin-top: .15rem;
}

.mt-18 {
  margin-top: .18rem;
}

.mt-20 {
  margin-top: .2rem;
}

.mt-25 {
  margin-top: .25rem;
}
.mt-30 {
  margin-top: .3rem !important;
}

.mt-31 {
  margin-top: .31rem;
}

.mt-35 {
  margin-top: .35rem;
}

.mt-36 {
  margin-top: .36rem;
}

.mt-40 {
  margin-top: .4rem;
}

.mt-45 {
  margin-top: .45rem;
}

.mt-50 {
  margin-top: .5rem;
}
.mt-55 {
  margin-top: .55rem;
}
.mt-56 {
  margin-top: .56rem;
}

.mt-60 {
  margin-top: .6rem;
}

.mt-65 {
  margin-top: .65rem;
}

.mt-70 {
  margin-top: .7rem;
}

.mt-75 {
  margin-top: .75rem;
}

.mt-80 {
  margin-top: .8rem;
}

.mt-85 {
  margin-top: .85rem;
}

.mt-100 {
  margin-top: 1rem;
}

.mt-120 {
  margin-top: 1.2rem;
}

.mt-130 {
  margin-top: 1.3rem;
}

.mt-135 {
  margin-top: 1.35rem;
}

.mt-140 {
  margin-top: 1.4rem;
}

.mt-180 {
  margin-top: 1.8rem;
}

.mt-200 {
  margin-top: 2rem;
}

.mt-230 {
  margin-top: 2.3rem;
}

.mt-250 {
  margin-top: 2.5rem;
}

.mt-350 {
  margin-top: 3.5rem;
}

.mt-400 {
  margin-top: 4rem;
}

.mr-5 {
  margin-right: .05rem;
}

.mr-8 {
  margin-right: .08rem;
}

.mr-10 {
  margin-right: .1rem;
}
.mr-16 {
  margin-right: .15rem;
}
.mr-16 {
  margin-right: .16rem;
}

.mr-20 {
  margin-right: .2rem;
}

.mr-40 {
  margin-right: .4rem;
}

.ml-4 {
  margin-left: .04rem;
}

.ml-5 {
  margin-left: .05rem;
}

.ml-8 {
  margin-left: .08rem;
}

.ml-10 {
  margin-left: .1rem;
}

.ml-15 {
  margin-left: .15rem;
}

.ml-16 {
  margin-left: .16rem;
}

.ml-18 {
  margin-left: .18rem;
}

.ml-20 {
  margin-left: .2rem;
}

.ml-25 {
  margin-left: .25rem;
}

.ml-30 {
  margin-left: .3rem;
}

.ml-36 {
  margin-left: .36rem;
}

.ml-40 {
  margin-left: .4rem;
}

.ml-60 {
  margin-left: .6rem;
}

.ml-70 {
  margin-left: .7rem;
}

.ml-140 {
  margin-left: 1.4rem;
}

.ml-167 {
  margin-left: 1.67rem;
}

.mb-10 {
  margin-bottom: .1rem;
}

.mb-15 {
  margin-bottom: .15rem;
}

.mb-20 {
  margin-bottom: .2rem;
}

.mb-25 {
  margin-bottom: .25rem;
}

.mb-30 {
  margin-bottom: .3rem;
}

.mb-40 {
  margin-bottom: .4rem;
}

.mb-50 {
  margin-bottom: .5rem;
}

.mb-70 {
  margin-bottom: .8rem;
}

.mb-80 {
  margin-bottom: .8rem;
}

.mb-100 {
  margin-bottom: 1rem;
}

.mb-120 {
  margin-bottom: 1.2rem;
}

.mb-130 {
  margin-bottom: 1.3rem;
}

.mb-200 {
  margin-bottom: 2rem;
}

.mb-230 {
  margin-bottom: 2.3rem;
}