html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
	margin: 0;
	padding: 0;
	border: 0;
	font-size: 100%;
	font: inherit;
	vertical-align: baseline;
  font-family: '微软雅黑';
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          box-sizing: border-box;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section {
	display: block;
}
body {
	line-height: 1;
}
ol, ul {
	list-style: none;
}
blockquote, q {
	quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
	content: '';
	content: none;
}
a{
  text-decoration: none;
  color: #666;
}
table {
	border-collapse: collapse;
	border-spacing: 0;
}
/*! 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 {
  -webkit-box-sizing: content-box;
     -moz-box-sizing: content-box;
          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 */
  -webkit-text-decoration: underline dotted;
     -moz-text-decoration: underline dotted;
          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;
  outline: none;
}

/**
 * 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 {
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          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"] {
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          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;
}
.d-none{
  display: none;
}
.d-block{
  display: block;
}
.d-inline-block{
  display: inline-block;
}
.d-inline{
  display: inline;
}
.d-flex{
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
}
.d-inline-flex{
  display: -webkit-inline-box;
  display: -webkit-inline-flex;
  display: -moz-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
}
.flex-column{
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
     -moz-box-orient: vertical;
     -moz-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
}
.align-center{
  -webkit-box-align: center;
  -webkit-align-items: center;
     -moz-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}
.align-start{
  -webkit-box-align: start;
  -webkit-align-items: flex-start;
     -moz-box-align: start;
      -ms-flex-align: start;
          align-items: flex-start;
}
.align-end{
  -webkit-box-align: end;
  -webkit-align-items: flex-end;
     -moz-box-align: end;
      -ms-flex-align: end;
          align-items: flex-end;
}
.justify-center{
  -webkit-box-pack: center;
  -webkit-justify-content: center;
     -moz-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
}
.justify-start{
  -webkit-box-pack: start;
  -webkit-justify-content: flex-start;
     -moz-box-pack: start;
      -ms-flex-pack: start;
          justify-content: flex-start;
}
.justify-end{
  -webkit-box-pack: end;
  -webkit-justify-content: flex-end;
     -moz-box-pack: end;
      -ms-flex-pack: end;
          justify-content: flex-end;
}
.space-between{
  -webkit-box-pack: justify;
  -webkit-justify-content: space-between;
     -moz-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
}
.space-around{
  -webkit-justify-content: space-around;
      -ms-flex-pack: distribute;
          justify-content: space-around;
}
.space-evenly{
  -webkit-box-pack: space-evenly;
  -webkit-justify-content: space-evenly;
     -moz-box-pack: space-evenly;
      -ms-flex-pack: space-evenly;
          justify-content: space-evenly;
}
.flex-wrap{
  -webkit-flex-wrap: wrap;
      -ms-flex-wrap: wrap;
          flex-wrap: wrap;
}
.flex-nowrap{
  -webkit-flex-wrap: nowrap;
      -ms-flex-wrap: nowrap;
          flex-wrap: nowrap;
}
.flex-fill{
  -webkit-box-flex: 1;
  -webkit-flex: 1;
     -moz-box-flex: 1;
      -ms-flex: 1;
          flex: 1;
}
.text-nowrap{
  white-space: nowrap;
}
.w-100{
  width: 100%;
}
.h-100{
  height: 100%;
}
.mx-auto{
  margin-left: auto;
  margin-right: auto;
}
.rotate180{
  -webkit-transform: rotate(180deg);
     -moz-transform: rotate(180deg);
       -o-transform: rotate(180deg);
          transform: rotate(180deg);
}
@media screen and (min-width: 320px){
  html{
      font-size: 42.6667px;
  }
}
@media screen and (min-width: 360px){
  html{
      font-size: 48px;
  }
}
@media screen and (min-width: 375px){
  html{
      font-size: 50px;
  }
}
@media screen and (min-width: 412px){
  html{
      font-size: 54.9333px;
  }
}
@media screen and (min-width: 414px){
  html{
      font-size: 55.2px;
  }
}
@media screen and (min-width: 768px){
  html{
      font-size: 100px;
  }
}
@media screen and (min-width: 1200px){
  html{
      font-size: 136px;
  }
}
body {
  background-color: #fff;
  font-size: 16px;
  min-width: 1200px;
  font-family: sans-serif;
}

.container {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.index-header {
  padding: 0 100px;
  background-color: #637fff;
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  z-index: 9;
}
.index-header .header-left img {
  height: 40px;
  width: auto;
  margin-right: 8px;
}
.index-header .header-right {
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  font-size: 14px;
  letter-spacing: 1px;
  color: #424242;
  margin-left: 80px;
}
.index-header .header-right li {
  cursor: pointer;
  height: 60px;
  line-height: 60px;
  white-space: nowrap;
}
.index-header .header-right li img {
  display: none;
}
.index-header .header-right li a {
  color: #d5ddff;
  height: 100%;
  display: block;
}
.index-header .header-right li a:hover, .index-header .header-right li:hover {
  color: #fff;
}
.index-header .header-right li.active a {
  color: #fff;
  border-top: 2px solid #fff;
  line-height: 56px;
}
.index-header .header-right li + li {
  margin-left: 32px;
}
.index-header .menu {
  height: 50%;
  display: none;
}

.banner {
  background: url("../img/bannerBG.png") no-repeat;
  background-position: center;
  padding: 177px 0 0;
  height: 540px;
}
.banner h1 {
  font-size: 48px;
  font-weight: 500;
  line-height: 1;
  color: #fff;
}
.banner h1 span {
  margin: 0 60px;
}
.banner h3 {
  font-size: 30px;
  letter-spacing: 4px;
  color: #fefefe;
  margin: 30px 0 40px;
}
.banner a {
  border-radius: 4px;
  overflow: hidden;
}
.banner input,
.banner button {
  height: 60px;
  line-height: 60px;
  outline: none;
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          box-sizing: border-box;
  border: none;
  font-size: 16px;
  cursor: pointer;
}
.banner input {
  width: 493px;
  padding: 0 15px;
}
.banner input::-webkit-input-placeholder {
  color: #999;
}
.banner input:-moz-placeholder {
  color: #999;
}
.banner input::-moz-placeholder {
  color: #999;
}
.banner input:-ms-input-placeholder {
  color: #999;
}
.banner input::-ms-input-placeholder {
  color: #999;
}
.banner input::placeholder {
  color: #999;
}
.banner button {
  width: 140px;
  background-color: #ffda1a;
  color: #111;
}

h2 {
  font-size: 36px;
  font-weight: 600;
  letter-spacing: 1px;
  line-height: 1;
  color: #333333;
  text-align: center;
}

/* advantages */
.advantages {
  margin: 60px auto;
}
.advantages .unit {
  border-radius: 20px;
  width: 270px;
  height: 300px;
  border: 1px solid #eee;
}
.advantages .unit:hover {
  background-color: #fafbff;
  border-color: #6296ff;
}
.advantages .unit h3 {
  font-size: 16px;
  color: #333;
  font-weight: 600;
  line-height: 1;
  margin: 30px 0 15px;
}
.advantages .unit h4 {
  text-align: center;
  padding: 0 13px;
  width: 100%;
  font-size: 14px;
  line-height: 24px;
  color: #666;
}
.advantages .unit span {
  font-size: 42px;
  font-weight: 600;
  letter-spacing: 1px;
  color: #cbd4ff;
  margin-top: 34px;
}

.paperAssistant {
  background-color: #f2f4ff;
  padding: 40px 0;
}
.paperAssistant img {
  width: 260px;
  height: auto;
}
.paperAssistant img + div {
  margin-left: 120px;
}
.paperAssistant img + div .subtitle {
  font-size: 30px;
  font-weight: 600;
  color: #333;
  line-height: 1;
  margin-bottom: 20px;
}
.paperAssistant img + div li {
  line-height: 1;
  font-size: 18px;
  color: #333;
  margin-top: 30px;
  list-style-type: disc;
  list-style-position: inside;
}
.paperAssistant img + div li::marker {
  color: #5771fa;
}

.solutions {
  margin: 79px auto 78px;
}
.solutions .unit {
  width: 270px;
  height: 270px;
  margin-top: 35px;
  border-radius: 10px;
  background-color: #fafbff;
}
.solutions .unit:hover {
  -webkit-box-shadow: 0px 1px 11px #bbb;
          box-shadow: 0px 1px 11px #bbb;
}
.solutions .unit h3 {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 1px;
  color: #333333;
  line-height: 1;
  margin: 32px 0 45px;
  position: relative;
}
.solutions .unit h3::after {
  content: "";
  position: absolute;
  width: 35px;
  height: 2px;
  bottom: -22px;
  left: 50%;
  margin-left: -17.5px;
  background-color: #6296ff;
}
.solutions .unit h4 {
  padding: 0 23px;
  width: 100%;
  text-align: center;
  font-size: 14px;
  line-height: 24px;
  color: #666;
}

.comments h2 + h3 {
  text-align: center;
  margin: 24px 0 60px;
  line-height: 1;
  font-size: 16px;
  letter-spacing: 1px;
  color: #999999;
}
.comments .swiper-wrapper {
  width: 1200px;
  margin: 67px auto 70px;
  position: relative;
}
.comments .swiper-wrapper .swiper-left {
  position: absolute;
  width: 46px;
  height: 46px;
  top: 50%;
  margin-top: -23px;
  left: 0;
  cursor: pointer;
  background: url("../img/prevIcon.png") no-repeat;
}
.comments .swiper-wrapper .swiper-left:hover {
  background-image: url("../img/prevIcon_active.png");
}
.comments .swiper-wrapper .swiper-right {
  position: absolute;
  width: 46px;
  height: 46px;
  top: 50%;
  margin-top: -23px;
  right: 0;
  cursor: pointer;
  background: url("../img/nextIcon.png") no-repeat;
}
.comments .swiper-wrapper .swiper-right:hover {
  background-image: url("../img/nextIcon_active.png");
}
.comments .swiper-wrapper .swiper {
  width: 1050px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
  height: 389px;
}
.comments .swiper-wrapper .swiper .swiper-o {
  width: 100%;
  position: absolute;
  left: -354px;
  margin-top: 40px;
}
.comments .swiper-wrapper .swiper .swiper-o .swiper-row {
  width: 334px;
  height: 340px;
  background: #fff;
  float: left;
  margin: 0 8px;
  border: 1px solid #ddd;
  position: relative;
  -webkit-box-shadow: 0px 1px 11px #bbb;
          box-shadow: 0px 1px 11px #bbb;
}
.comments .swiper-wrapper .swiper .swiper-o .swiper-row .headPortrait {
  position: absolute;
  top: -33px;
  left: 132px;
  width: 70px;
  height: 70px;
  border-radius: 100px;
}
.comments .swiper-wrapper .swiper .swiper-o .swiper-row h5 {
  font-size: 16px;
  color: #333333;
  text-align: center;
  margin: 50px 0 25px 0;
}
.comments .swiper-wrapper .swiper .swiper-o .swiper-row .swiper-line {
  position: relative;
  padding: 0 30px;
  text-align: center;
  height: 35px;
}
.comments .swiper-wrapper .swiper .swiper-o .swiper-row .swiper-line p {
  height: 1px;
  left: 30px;
  right: 30px;
  border-bottom: 1px solid #ddd;
  position: absolute;
  top: 50%;
  z-index: 2;
}
.comments .swiper-wrapper .swiper .swiper-o .swiper-row .swiper-line span {
  padding: 0 10px;
  background-color: #fff;
  z-index: 5;
  line-height: 35px;
  position: relative;
}
.comments .swiper-wrapper .swiper .swiper-o .swiper-row .swiper-b h6 {
  font-size: 12px;
  color: #999;
  text-align: center;
}
.comments .swiper-wrapper .swiper .swiper-o .swiper-row .swiper-b .star {
  margin: 7px auto 14px;
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
     -moz-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
     -moz-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  font-size: 12px;
  color: #f0b97e;
}
.comments .swiper-wrapper .swiper .swiper-o .swiper-row .swiper-b .star span + img {
  margin-left: 5px;
}
.comments .swiper-wrapper .swiper .swiper-o .swiper-row .swiper-b .star img {
  width: 15px;
  height: 14px;
}
.comments .swiper-wrapper .swiper .swiper-o .swiper-row .swiper-b .star img + img {
  margin-left: 3px;
}
.comments .swiper-wrapper .swiper .swiper-o .swiper-row .swiper-b > p {
  padding: 0 34px;
  font-size: 14px;
  line-height: 1.5;
  color: #333;
}

.commonProblem .container {
  padding: 0 95px;
  margin-top: 57px;
}
.commonProblem .container li {
  width: 410px;
  list-style: disc inside;
  line-height: 54px;
  border-bottom: 1px dashed #eee;
  -webkit-box-align: center;
  -webkit-align-items: center;
     -moz-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  white-space: nowrap;
  overflow: hidden;
  -o-text-overflow: ellipsis;
     text-overflow: ellipsis;
}
.commonProblem .container li:nth-child(even) {
  margin-left: 190px;
}
.commonProblem .container li a {
  line-height: 54px;
  max-width: 100%;
  font-size: 14px;
}
.commonProblem .container li a:hover {
  color: #6296ff;
}

.testRightNow {
  background-color: #f4f4f4;
  padding: 80px 0 60px;
  margin-top: 100px;
}
.testRightNow h2 {
  font-size: 32px;
  font-weight: normal;
  letter-spacing: 1px;
  color: #333333;
}
.testRightNow h3 {
  font-size: 16px;
  font-weight: normal;
  font-stretch: normal;
  letter-spacing: 1px;
  line-height: 1;
  color: #666666;
  margin: 23px 0 39px;
}
.testRightNow a {
  display: block;
  width: 206px;
  height: 50px;
  font-size: 16px;
  color: #fff;
  background-color: #fd4b19;
  text-align: center;
  line-height: 50px;
  border-radius: 2px;
}

footer {
  height: 54px;
  color: #999;
  background-color: #fff;
  font-size: 12px;
}
footer a {
  color: #999;
}
footer a:hover {
  color: #999;
}