/*! 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 */
}
/* 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;
}
html,
body,
div,
span,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
abbr,
address,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
samp,
small,
strong,
sub,
sup,
var,
b,
i,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section,
summary,
time,
mark,
audio,
video {
  margin: 0;
  padding: 0;
  border: 0;
  outline: 0;
  font-size: 100%;
  vertical-align: baseline;
  background: transparent;
}
body {
  font-size: 14px;
  color: #141414;
  font-family: 'MarkPro', Arial, Helvetica, sans-serif;
  background: #ffffff;
  min-width: 1200px;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 500;
}
del {
  text-decoration: line-through;
}
hr {
  color: transparent;
  height: 1px;
  border: none;
  border-bottom: 1px solid #ccc;
  margin: 0;
  margin-bottom: 10px;
}
input,
select {
  outline: 0 none;
  vertical-align: middle;
}
input:focus {
  outline: none;
}
button {
  outline: none;
}
p {
  padding: 0 0 14px;
}
.abscenter {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  margin: auto;
  width: 100%;
  height: 100%;
}
.container {
  position: relative;
  width: 1200px;
  min-width: 1200px;
  margin: 0 auto;
  height: inherit;
}
a {
  margin: 0;
  padding: 0;
  font-size: 100%;
  color: inherit;
  vertical-align: baseline;
  background: transparent;
  outline: none;
  text-decoration: none;
  cursor: pointer;
}
a:hover {
  text-decoration: underline;
}
/*float*/
.left {
  float: left;
}
.right {
  float: right;
}
/* float clearing for everyone else */
.clearfix:before,
.clearfix:after {
  content: " ";
  display: table;
  height: 0;
  visibility: hidden;
  font-size: 0;
  line-height: 0;
}
.clearfix:after {
  clear: both;
}
.clear {
  clear: both;
}
.none {
  clear: none;
}
/*text-config*/
.underline {
  text-decoration: underline;
}
.line-through {
  text-decoration: line-through;
}
.nowrap {
  white-space: nowrap;
}
/*public hide / show config*/
.hide {
  display: none !important;
}
.show,
.active {
  display: block;
}
.hidden {
  visibility: hidden;
}
.visible {
  visibility: visible;
}
.inline {
  display: inline;
}
.no-boarder {
  border: none !important;
}
.button {
  display: inline-block;
  margin-bottom: 0;
  text-align: center;
  vertical-align: middle;
  touch-action: manipulation;
  cursor: pointer;
  background-image: none;
  border: 1px solid transparent;
  white-space: nowrap;
  box-sizing: border-box;
}
.button:hover,
.button:focus,
.button.focus {
  text-decoration: none;
}
.button:active,
.button.active {
  outline: 0;
}
.button.disabled,
.button[disabled] {
  cursor: default;
}
body,
html {
  min-width: auto;
  font-size: .32rem;
}
#nav {
  position: relative;
  font-size: .32rem;
  width: 100%;
  margin: 0 auto;
}
#app {
  position: static;
  margin-top: 2.2rem;
  width: 7.5rem;
  overflow-x: hidden;
}
.app-container {
  position: relative;
  max-width: 7.5rem;
  margin: 0 auto;
}
.page-inner {
  position: relative;
  max-width: 7rem;
  margin: 0 auto;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
  border: none;
}
video {
  -webkit-mask-image: -webkit-radial-gradient(#ffffff, #000000);
  -webkit-backface-visibility: hidden;
  -moz-backface-visibility: hidden;
}
body,
html {
  min-width: auto;
  font-size: .32rem;
}
/* how-banner */
.how-banner {
  position: relative;
  display: block;
  width: 100%;
  padding-top: 0rem;
  height: 8.09rem;
  color: #fff;
  text-align: center;
  background: #f4f5f9;
  background-image: url('../images/how-to/how-to-banner.jpg');
  background-size: 7.5rem 8.09rem;
  background-repeat: no-repeat;
}
.how-banner h1 {
  padding: 2.28rem .66rem .4rem;
  font-size: .8rem;
  font-family: 'MarkPro-Bold';
  font-weight: bold;
}
.how-banner p {
  padding: 0 .66rem;
  font-size: .48rem;
  line-height: .72rem;
}
/* essay-details */
.essay-details {
  position: relative;
  padding: .74rem .42rem;
  padding-bottom: 0.7rem;
}
.essay-details .details-slide {
  padding: .52rem 0rem .32rem;
  border-bottom: 0.01rem solid #dcdcdc;
}
.essay-details .details-slide h3 {
  margin-bottom: .16rem;
  color: #116df7;
  font-size: .32rem;
  line-height: .48rem;
}
.essay-details .details-slide h3 a {
  color: #116df7;
}
.essay-details .details-slide h3 a:hover {
  text-decoration: none;
}
.essay-details .details-slide p {
  font-size: .32rem;
  line-height: .48rem;
}
.essay-details .details-slide.last {
  border-color: #fff;
}
.essay-details .details-icon {
  position: relative;
  margin-top: 1rem;
  height: 1.23rem;
  line-height: 1.23rem;
}
.essay-details .details-icon .arrow {
  display: block;
  position: absolute;
  width: 1.24rem;
  height: 1.24rem;
  border-radius: 50%;
  background: url('../images/how-to/left-arrow.png') no-repeat;
  background-size: 1.24rem 1.24rem;
}
.essay-details .details-icon .arrow.prev {
  left: 0rem;
}
.essay-details .details-icon .arrow.next {
  right: 0rem;
  background: url('../images/how-to/right-arrow.png') no-repeat;
  background-size: 1.24rem 1.24rem;
}
.essay-details .details-icon .pagination {
  position: absolute;
  top: 0rem;
  left: 1.26rem;
  width: 4.12rem;
  text-align: center;
  line-height: 1.24rem;
}
.essay-details .details-icon .pagination span {
  display: inline-block;
  margin: 0 .12rem;
  width: .24rem;
  height: .24rem;
  cursor: pointer;
  text-indent: -999rem;
  border-radius: .5rem;
  vertical-align: middle;
  background-color: rgba(23, 24, 24, 0.25);
}
.essay-details .details-icon .pagination span.on {
  background-color: #171818;
}
/* how-bottom-buy */
.how-bottom-buy {
  position: relative;
  padding-bottom: 1.44rem;
  display: block;
  width: 100%;
  color: #fff;
  text-align: center;
  background: #1f2122;
}
.how-bottom-buy img {
  margin: 0 auto;
}
.how-bottom-buy h2 {
  padding: 1.26rem .50rem 0rem;
  font-size: .58rem;
  line-height: .88rem;
  font-family: 'MarkPro-Bold';
  font-weight: bold;
}
.how-bottom-buy p {
  color: #7e7d7d;
  font-size: .3rem;
  line-height: .46rem;
}
/* article */
.sharebox {
  margin: 0 auto;
  padding-bottom: .58rem;
  width: 6.7rem;
}
.sharebox h2 {
  padding: .72rem 0 .3rem;
  font-size: .48rem;
  line-height: .72rem;
}
.userful-tips {
  margin: 0 auto;
  padding-top: 1.64rem;
  width: 6.7rem;
  color: #939393;
  font-size: .32rem;
  line-height: .3rem;
}
.userful-tips a {
  display: inline-block;
  border-bottom: .02rem solid #939393;
}
.userful-tips a:hover {
  text-decoration: none;
}
/* article-details */
.article-details {
  margin: 0 auto;
  padding: .7rem 0;
  width: 6.7rem;
  border-top: .01rem solid #dcdcdc;
  /* border-bottom: .01rem solid #dcdcdc; */
}
.article-details img {
  margin: 0 auto;
}
.article-details h2 {
  margin-bottom: 0.08rem;
  font-size: .32rem;
  line-height: .48rem;
  font-family: 'MarkPro-Bold';
  font-weight: bold;
}
.article-details p {
  margin: .5rem 0;
  font-size: .32rem;
  line-height: .48rem;
}
.article-details p a {
  display: inline-block;
  line-height: .32rem;
  border-bottom: 0.02rem solid #000;
}
.article-details p a:hover {
  text-decoration: none;
}
/* cheack-tips */
.cheack-tips {
  margin: 0 auto;
  padding: .6rem 0;
  width: 6.7rem;
  border-bottom: .01rem solid #dcdcdc;
}
.cheack-tips h2 {
  margin-bottom: 0rem;
  font-size: .32rem;
  line-height: .48rem;
  font-family: 'MarkPro-Bold';
  font-weight: bold;
}
.cheack-tips ul {
  list-style: none;
}
.cheack-tips ul li {
  margin: .28rem 0;
  font-size: .32rem;
  line-height: .48rem;
}
.cheack-tips ul li a {
  line-height: .30rem;
  border-bottom: .02rem solid #000;
}
.cheack-tips ul li a:hover {
  text-decoration: none;
}
/* article-bottom-share */
.sharebox.article-bottom-share {
  padding-bottom: 1.42rem;
}
.sharebox.article-bottom-share h2 {
  padding-bottom: .2rem;
  font-size: .32rem;
  line-height: .48rem;
}
/* btnbox */
.btnbox {
  margin: .92rem 0 .2rem;
}
.btnbox .btn {
  display: block;
  margin: 0 auto;
  padding: .24rem 0 .2rem;
  width: 6.7rem;
  color: #fff;
  text-align: center;
  font-size: .28rem;
  line-height: .42rem;
  font-family: 'MarkPro-Bold';
  font-weight: bold;
  background: #f39f0d;
  border-radius: 0.2rem;
}
.btnbox .btn.buy {
  background: #f39f0d;
}
.btnbox .btn.down {
  background: #116df7;
}
.btnbox .btn:hover {
  text-decoration: none;
}
.logo {
  position: absolute;
  top: .4rem;
  left: .4rem;
  z-index: 1000;
  display: block;
  height: .45rem;
  line-height: .45rem;
}
.logo a {
  display: block;
  line-height: .45rem;
}
.logo a:hover {
  text-decoration: none;
}
.logo span {
  display: inline-block;
  width: .45rem;
  height: .45rem;
  vertical-align: middle;
}
.logo span img {
  width: .45rem;
  height: .45rem;
}
.logo h3 {
  display: inline-block;
  padding-left: .2rem;
  font-family: 'MarkPro-Bold';
  font-weight: bold;
  font-size: .3rem;
  vertical-align: middle;
}
.golbal-footer {
  display: block;
  background: #1b1b1b;
  padding: .86rem .4rem;
}
.golbal-footer ul {
  margin-bottom: .48rem;
  width: 100%;
  text-align: left;
  list-style: none;
}
.golbal-footer ul li {
  color: #c7c7c7;
  line-height: .48rem;
}
.golbal-footer ul li h4 {
  font-size: .32rem;
  font-family: 'MarkPro-Bold';
  font-weight: bold;
}
.golbal-footer ul li a {
  color: #7c8595;
  font-size: .32rem;
}
.golbal-footer ul li a:hover {
  text-decoration: none;
}
.golbal-footer ul.footer-msg a {
  display: inline-block;
  width: .6rem;
  height: .6rem;
  margin-top: .22rem;
  margin-right: .16rem;
  text-indent: -9999rem;
  background: url(../images/fb-icon.png) no-repeat;
  background-size: .6rem .6rem;
}
.golbal-footer ul.footer-msg a.msg {
  background: url(../images/msg-icon.png) no-repeat;
  background-size: .6rem .6rem;
}
.golbal-footer .copyright {
  color: #c7c7c7;
  font-size: .32rem;
  line-height: .48rem;
}
.fl {
  float: left;
}
.fr {
  float: right;
}
/* sharebtn */
.sharebtn {
  position: relative;
  margin: 0 auto;
}
.sharebtn .btn {
  position: relative;
  display: block;
  margin: 0;
  padding: .23rem 0 .25rem;
  width: 3.2rem;
  color: #fff;
  text-align: center;
  font-size: .28rem;
  line-height: .42rem;
  font-family: 'MarkPro-Bold';
  font-weight: bold;
  background: #4465b8;
  border-radius: 0.2rem;
}
.sharebtn .btn i,
.sharebtn .btn span {
  position: relative;
  display: inline-block;
  vertical-align: middle;
}
.sharebtn .btn i {
  width: 1.1rem;
  height: .38rem;
  background: url('../images/fb-white-icon.png') center no-repeat;
  background-size: .2rem .38rem;
}
.sharebtn .btn i:after {
  content: '';
  display: block;
  position: absolute;
  top: -0.13rem;
  right: 0rem;
  width: .01rem;
  height: .64rem;
  background: rgba(255, 255, 255, 0.3);
}
.sharebtn .btn span {
  width: 2rem;
}
.sharebtn .btn.tw {
  background: #1b94e0;
}
.sharebtn .btn.tw i {
  background: url('../images/tw-icon.png') center no-repeat;
  background-size: .42rem .34rem;
}
.sharebtn .btn:hover {
  text-decoration: none;
}
/* popshow */
.popshow {
  position: fixed;
  bottom: -10rem;
  z-index: 1000;
  padding: .3rem .42rem;
  background: #fff;
  text-align: center;
}
.popshow p {
  color: #000;
  font-size: .24rem;
  line-height: .36rem;
}
.popshow p a {
  color: #1871f7;
}
.popshow p a:hover {
  text-decoration: none;
}
.popshow .popshow-btn {
  display: inline-block;
  margin-top: .24rem;
  padding: .11rem 0 .08rem;
  width: 6.62rem;
  vertical-align: middle;
  touch-action: manipulation;
  background-image: none;
  box-sizing: border-box;
  border-radius: 0.1rem;
  color: #515151;
  font-size: .24rem;
  font-weight: bold;
  border: 0.04rem solid #bfbfbf;
  background-color: #fff;
}
.popshow.on {
  bottom: 0rem;
}
.backtop {
  position: fixed;
  right: 0;
  z-index: 1060;
  bottom: -10rem;
  display: block;
  width: 1.22rem;
  height: .92rem;
  transform: translate3d(0, 0, 0);
  transition: bottom 0.3s ease-in;
  background-size: 1.22rem .92rem;
  background-image: url('../images/mob/back-top.png');
  background-repeat: no-repeat;
}
.backtop.on {
  bottom: 1rem;
}
.float-bar {
  position: fixed;
  z-index: 1000;
  bottom: -3rem;
  width: 100%;
  min-height: .8rem;
  height: auto;
  box-sizing: border-box;
  background: rgba(25, 25, 32, 0.9);
  padding: .3rem;
  text-align: center;
  transition: bottom 1s ease-in-out;
}
.float-bar p {
  display: block;
  float: left;
  color: #95959e;
  font-size: .32rem;
  line-height: .42rem;
  text-align: left;
}
.float-bar p a {
  color: #cdcdd4;
  text-decoration: underline;
}
.float-bar .button {
  padding: .12rem .2rem;
  min-width: 3rem;
  font-size: .32rem;
  border-radius: .34rem;
}
.float-bar .button.grayghost {
  color: #95959e;
  border: 1px #95959e solid;
  background-color: transparent;
}
.float-bar .button.grayghost:hover {
  color: #eaeaee;
  background-color: #45454c;
  border: 1px #eaeaee solid;
}
.float-bar.active {
  bottom: 0;
}

/* iTop VPN-pop */
.itop-pop {
  z-index: 99;
  display: block;
  position: fixed;
  right: 0;
  bottom: 33.33%;
  width: 2rem;
  height: 1.77rem;
  text-indent: -9999px;
  background: url('../images/itopfree.png') center no-repeat;
  background-size: 100% 100%;
  -webkit-transition: all 0.3s ease-in-out;
  transition: all 0.3s ease-in-out;
}
.itop-pop.cover {
  right: -0.72rem;
  bottom: 15.5%;
  opacity: .5;
}
.itophowban{ margin-bottom: 1rem;}