/*! normalize.css v8.0.1 | MIT License | github.com/necolas/normalize.css */

/* Document
   ========================================================================== */

/**
 * 1. Correct the line height in all browsers.
 * 2. Prevent adjustments of font size after orientation changes in iOS.
 */

html {
  line-height: 1.15; /* 1 */
  -webkit-text-size-adjust: 100%; /* 2 */
  background-color: #efedee;
}

/* Sections
   ========================================================================== */

/**
 * Remove the margin in all browsers.
 */

body {
  margin: 0;
}

/**
 * Render the `main` element consistently in IE.
 */

main {
  display: block;
}

/**
 * Correct the font size and margin on `h1` elements within `section` and
 * `article` contexts in Chrome, Firefox, and Safari.
 */

h1 {
  font-size: 2em;
  margin: 0.67em 0;
}

/* Grouping content
   ========================================================================== */

/**
 * 1. Add the correct box sizing in Firefox.
 * 2. Show the overflow in Edge and IE.
 */

hr {
  box-sizing: content-box; /* 1 */
  height: 0; /* 1 */
  overflow: visible; /* 2 */
}

/**
 * 1. Correct the inheritance and scaling of font size in all browsers.
 * 2. Correct the odd `em` font sizing in all browsers.
 */

pre {
  font-family: monospace, monospace; /* 1 */
  font-size: 1em; /* 2 */
}

/* Text-level semantics
   ========================================================================== */

/**
 * Remove the gray background on active links in IE 10.
 */

a {
  background-color: transparent;
}

/**
 * 1. Remove the bottom border in Chrome 57-
 * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
 */

abbr[title] {
  border-bottom: none; /* 1 */
  text-decoration: underline; /* 2 */
  text-decoration: underline dotted; /* 2 */
}

/**
 * Add the correct font weight in Chrome, Edge, and Safari.
 */

b,
strong {
  font-weight: bolder;
}

/**
 * 1. Correct the inheritance and scaling of font size in all browsers.
 * 2. Correct the odd `em` font sizing in all browsers.
 */

code,
kbd,
samp {
  font-family: monospace, monospace; /* 1 */
  font-size: 1em; /* 2 */
}

/**
 * Add the correct font size in all browsers.
 */

small {
  font-size: 80%;
}

/**
 * Prevent `sub` and `sup` elements from affecting the line height in
 * all browsers.
 */

sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sub {
  bottom: -0.25em;
}

sup {
  top: -0.5em;
}

/* Embedded content
   ========================================================================== */

/**
 * Remove the border on images inside links in IE 10.
 */

img {
  border-style: none;
}

/* Forms
   ========================================================================== */

/**
 * 1. Change the font styles in all browsers.
 * 2. Remove the margin in Firefox and Safari.
 */

button,
input,
optgroup,
select,
textarea {
  font-family: inherit; /* 1 */
  font-size: 100%; /* 1 */
  line-height: 1.15; /* 1 */
  margin: 0; /* 2 */
}

/**
 * Show the overflow in IE.
 * 1. Show the overflow in Edge.
 */

button,
input {
  /* 1 */
  overflow: visible;
}

/**
 * Remove the inheritance of text transform in Edge, Firefox, and IE.
 * 1. Remove the inheritance of text transform in Firefox.
 */

button,
select {
  /* 1 */
  text-transform: none;
}

/**
 * Correct the inability to style clickable types in iOS and Safari.
 */

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

/**
 * Remove the inner border and padding in Firefox.
 */

button::-moz-focus-inner,
[type="button"]::-moz-focus-inner,
[type="reset"]::-moz-focus-inner,
[type="submit"]::-moz-focus-inner {
  border-style: none;
  padding: 0;
}

/**
 * Restore the focus styles unset by the previous rule.
 */

button:-moz-focusring,
[type="button"]:-moz-focusring,
[type="reset"]:-moz-focusring,
[type="submit"]:-moz-focusring {
  outline: 1px dotted ButtonText;
}

/**
 * Correct the padding in Firefox.
 */

fieldset {
  padding: 0.35em 0.75em 0.625em;
}

/**
 * 1. Correct the text wrapping in Edge and IE.
 * 2. Correct the color inheritance from `fieldset` elements in IE.
 * 3. Remove the padding so developers are not caught out when they zero out
 *    `fieldset` elements in all browsers.
 */

legend {
  box-sizing: border-box; /* 1 */
  color: inherit; /* 2 */
  display: table; /* 1 */
  max-width: 100%; /* 1 */
  padding: 0; /* 3 */
  white-space: normal; /* 1 */
}

/**
 * Add the correct vertical alignment in Chrome, Firefox, and Opera.
 */

progress {
  vertical-align: baseline;
}

/**
 * Remove the default vertical scrollbar in IE 10+.
 */

textarea {
  overflow: auto;
}

/**
 * 1. Add the correct box sizing in IE 10.
 * 2. Remove the padding in IE 10.
 */

[type="checkbox"],
[type="radio"] {
  box-sizing: border-box; /* 1 */
  padding: 0; /* 2 */
}

/**
 * Correct the cursor style of increment and decrement buttons in Chrome.
 */

[type="number"]::-webkit-inner-spin-button,
[type="number"]::-webkit-outer-spin-button {
  height: auto;
}

/**
 * 1. Correct the odd appearance in Chrome and Safari.
 * 2. Correct the outline style in Safari.
 */

[type="search"] {
  -webkit-appearance: textfield; /* 1 */
  outline-offset: -2px; /* 2 */
}

/**
 * Remove the inner padding in Chrome and Safari on macOS.
 */

[type="search"]::-webkit-search-decoration {
  -webkit-appearance: none;
}

/**
 * 1. Correct the inability to style clickable types in iOS and Safari.
 * 2. Change font properties to `inherit` in Safari.
 */

::-webkit-file-upload-button {
  -webkit-appearance: button; /* 1 */
  font: inherit; /* 2 */
}

/* Interactive
   ========================================================================== */

/*
 * Add the correct display in Edge, IE 10+, and Firefox.
 */

details {
  display: block;
}

/*
 * Add the correct display in all browsers.
 */

summary {
  display: list-item;
}

/* Misc
   ========================================================================== */

/**
 * Add the correct display in IE 10+.
 */

template {
  display: none;
}

/**
 * Add the correct display in IE 10.
 */

[hidden] {
  display: none;
}

ul,
li {
  list-style-type: none;
}

.f_page {
  width: 100vw;
  height: 100vh;
}

.f100 {
  width: 100%;
  height: 100%;
}

.w100 {
  width: 100%;
}

.m {
  margin: 0 auto;
}

.pb16 {
  padding-bottom: 16px;
}

.ml8 {
  margin-left: 8px;
}

.mr16 {
  margin-right: 16px;
}

.mb8 {
  margin-bottom: 8px;
}

.mtb8 {
  margin: 8px 0;
}

.clearfix {
  width: 100%;
}

.clearfix:after {
  visibility: hidden;
  display: block;
  font-size: 0;
  content: " ";
  clear: both;
  height: 0;
}

.l,
.lil li {
  float: left;
}

.r {
  float: right;
}

.oh {
  overflow: hidden;
}

.oa {
  overflow: auto;
}

.oy {
  overflow-x: hidden;
  overflow-y: auto;
}

.none {
  display: none !important;
}

.pr {
  position: relative;
  z-index: 2;
}

.pa {
  position: absolute;
}

.px {
  position: fixed;
}

.db {
  display: block;
}

.dib {
  display: inline-block;
}

.di {
  display: inline;
}

.df {
  display: flex;
}

*:focus {
  outline: none;
}

img {
  border: none;
}

img.round {
  border-radius: 50%;
}

.ellipsis {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.middle {
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.middleX {
  left: 50%;
  transform: translateX(-50%);
}

.middleY {
  top: 50%;
  transform: translateY(-50%);
}

.tr {
  text-align: right;
}

.tc {
  text-align: center;
}

.cur {
  cursor: pointer;
}

._main {
  width: 100%;
}

.bg_imgs,
.bg_imgs > img {
  width: 100%;
  user-select: none;
}

.head {
  top: 0;
  left: 0;
  width: 100%;
  justify-content: space-between;
  align-items: center;
}

.head > img {
  width: 8.85%;
  margin: 3.74% 0 0 4.47%;
}

.head .nav {
  margin: 3.74% 4.47% 0 0;
  width: 40.8%;
  justify-content: space-between;
}

.head .nav a {
  font-size: 1.82vw;
  font-weight: lighter;
  color: #000;
  text-decoration: none;
  position: relative;
}
.head .nav a.actived::after,
.head .nav a:hover::after {
  content: " ";
  display: block;
  width: 100%;
  background-color: #000;
  position: relative;
  bottom: -4px;
  left: 0;
}

.btns {
  width: 43%;
  height: 3.8vw;
  background-color: #fff;
  border-radius: 3.8vw;
  top: 33vw;
}

.btns:has(.single) {
  background-color: transparent;
}

.btns .inner {
  width: 100%;
  height: 100%;
  z-index: 3;
}

.btns .inner.single {
  width: 50%;
  margin: 0 auto;
}

.btns .inner .box button {
  flex: 1;
  height: 3.8vw;
  border-radius: 3.8vw;
  border: none;
  background-color: transparent;
  justify-content: center;
  align-items: center;
  font-size: 1.81vw;
  font-weight: lighter;
  cursor: pointer;
  color: #fff;
  transition: all 300ms ease-in-out;
}

.btns .inner .pop {
  width: 18.7vw;
  height: 18.7vw;
  top: 4.8vw;
  border-radius: 8px;
  background-color: #fff;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.03),
    0 1px 6px -1px rgba(0, 0, 0, 0.02), 0 2px 4px 0 rgba(0, 0, 0, 0.02);
}
.btns .inner .pop .f100 canvas,
.btns .inner .pop .f100 img {
  margin: 8px;
}
.btns .inner .pop img.middle {
  width: 2.39vw;
  height: 2.39vw;
  border-radius: 6px;
}
.btns .inner .pop.an {
  left: 2.33vw;
}
.btns .inner .pop.ios {
  left: calc(50% + 2.33vw);
}

.btns .inner .box button .iconfont {
  margin-right: 8px;
  font-size: 1.81vw;
  font-weight: normal;
}

.btns .sur {
  width: 50%;
  height: 3.8vw;
  border-radius: 3.8vw;
  background-color: #000;
  top: 0;
  z-index: 1;
  transition: all 300ms ease-in-out;
}

.btns:has(.single) .sur {
  left: 25% !important;
}

.btns .inner .box button.actived {
  color: #000;
}

.foot {
  width: 100%;
  height: 15.6vw;
  background-color: #efeded;
}
.foot .block {
  font-size: 1.81vw;
  font-weight: lighter;
}
.foot .block:nth-of-type(2) {
  margin: 2.38vw 0;
}

.foot .block a {
  color: #000;
  text-decoration: none;
}

.foot .block a:hover {
  text-decoration: underline;
}
.wx_pop {
  top: 0;
  left: 0;
  z-index: 9;
  background: rgba(0, 0, 0, .6);
}
.wx_pop img {
  width: 100%;
}

@media screen and (min-width: 1081px) {
  ._main {
    width: 67vw;
  }
  .head .nav a {
    font-size: 1.18vw;
  }
  .head .nav a.actived::after,
  .head .nav a:hover::after {
    height: 0.033vw;
  }
  .btns {
    height: 2.54vw;
    border-radius: 2.54vw;
    top: 22.11vw;
  }
  .btns .inner .box button {
    height: 2.54vw;
    border-radius: 2.54vw;
    font-size: 1.18vw;
  }
  .btns .inner .pop {
    width: 12.52vw;
    height: 12.52vw;
    top: 3.54vw;
  }
  .btns .inner .pop img.middle {
    width: 1.6vw;
    height: 1.6vw;
  }
  .btns .inner .pop.an {
    left: 1.565vw;
  }
  .btns .inner .pop.ios {
    left: calc(50% + 1.565vw);
  }

  .btns .inner .box button .iconfont,
  .foot .block {
    font-size: 1.18vw;
  }
  .btns .sur {
    height: 2.54vw;
    border-radius: 2.54vw;
  }
  .foot {
    height: 10.45vw;
  }
  .foot .block:nth-of-type(2) {
    margin: 1.6vw 0;
  }
}

@media screen and (min-width: 641px) and (max-width: 1080px) {
  ._main {
    width: 92vw;
  }
  .head .nav a {
    font-size: 1.67vw;
  }
  .head .nav a.actived::after,
  .head .nav a:hover::after {
    height: 0.045vw;
  }
  .btns {
    height: 3.48vw;
    border-radius: 3.48vw;
    top: 30.36vw;
  }
  .btns .inner .box button {
    height: 3.48vw;
    border-radius: 3.48vw;
    font-size: 1.67vw;
  }

  .btns .inner .pop {
    width: 17.2vw;
    height: 17.2vw;
    top: 4.48vw;
  }
  .btns .inner .pop img.middle {
    width: 2.19vw;
    height: 2.19vw;
  }
  .btns .inner .pop.an {
    left: 2.15vw;
  }
  .btns .inner .pop.ios {
    left: calc(50% + 2.15vw);
  }
  .btns .inner .box button .iconfont,
  .foot .block {
    font-size: 1.67vw;
  }
  .btns .sur {
    height: 3.48vw;
    border-radius: 3.48vw;
  }
  .foot {
    height: 14.34vw;
  }
  .foot .block:nth-of-type(2) {
    margin:2.18vw 0;
  }
}