html {
  -ms-text-size-adjust: 100%;
  /* 2 */
  -webkit-text-size-adjust: 100%;
  /* 2 */
}

/**
 * Remove default margin.
 */
body {
  margin: 0;
}

html, body {
  height: 100%;
}

/* HTML5 display definitions
   ========================================================================== */
/**
 * Correct `block` display not defined for any HTML5 element in IE 8/9.
 * Correct `block` display not defined for `details` or `summary` in IE 10/11
 * and Firefox.
 * Correct `block` display not defined for `main` in IE 11.
 */
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
main,
menu,
nav,
section,
summary {
  display: block;
}

/**
 * 1. Correct `inline-block` display not defined in IE 8/9.
 * 2. Normalize vertical alignment of `progress` in Chrome, Firefox, and Opera.
 */
audio,
canvas,
progress,
video {
  display: inline-block;
  /* 1 */
  vertical-align: baseline;
  /* 2 */
}

/**
 * Prevent modern browsers from displaying `audio` without controls.
 * Remove excess height in iOS 5 devices.
 */
audio:not([controls]) {
  display: none;
  height: 0;
}

/**
 * Address `[hidden]` styling not present in IE 8/9/10.
 * Hide the `template` element in IE 8/9/10/11, Safari, and Firefox < 22.
 */
[hidden],
template {
  display: none;
}

/* Links
   ========================================================================== */
/**
 * Remove the gray background color from active links in IE 10.
 */
a {
  background-color: transparent;
}

/**
 * Improve readability of focused elements when they are also in an
 * active/hover state.
 */
a:active,
a:hover {
  outline: 0;
}

/* Text-level semantics
   ========================================================================== */
/**
 * Address styling not present in IE 8/9/10/11, Safari, and Chrome.
 */
abbr[title] {
  border-bottom: 1px dotted;
}

/**
 * Address style set to `bolder` in Firefox 4+, Safari, and Chrome.
 */
b,
strong {
  font-weight: bold;
}

/**
 * Address styling not present in Safari and Chrome.
 */
dfn {
  font-style: italic;
}

/**
 * Address variable `h1` font-size and margin within `section` and `article`
 * contexts in Firefox 4+, Safari, and Chrome.
 */
h1 {
  font-size: 2em;
  margin: 0.67em 0;
}

/**
 * Address styling not present in IE 8/9.
 */
mark {
  background: #ff0;
  color: #000;
}

/**
 * Address inconsistent and variable font size in all browsers.
 */
small {
  font-size: 80%;
}

/**
 * Prevent `sub` and `sup` affecting `line-height` in all browsers.
 */
sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sup {
  top: -0.5em;
}

sub {
  bottom: -0.25em;
}

/* Embedded content
   ========================================================================== */
/**
 * Remove border when inside `a` element in IE 8/9/10.
 */
img {
  border: 0;
}

/**
 * Correct overflow not hidden in IE 9/10/11.
 */
svg:not(:root) {
  overflow: hidden;
}

/* Grouping content
   ========================================================================== */
/**
 * Address margin not present in IE 8/9 and Safari.
 */
figure {
  margin: 1em 40px;
}

/**
 * Address differences between Firefox and other browsers.
 */
hr {
  box-sizing: content-box;
  height: 0;
}

/**
 * Contain overflow in all browsers.
 */
pre {
  overflow: auto;
}

/**
 * Address odd `em`-unit font size rendering in all browsers.
 */
code,
kbd,
pre,
samp {
  font-family: monospace, monospace;
  font-size: 1em;
}

/* Forms
   ========================================================================== */
/**
 * Known limitation: by default, Chrome and Safari on OS X allow very limited
 * styling of `select`, unless a `border` property is set.
 */
/**
 * 1. Correct color not being inherited.
 *    Known issue: affects color of disabled elements.
 * 2. Correct font properties not being inherited.
 * 3. Address margins set differently in Firefox 4+, Safari, and Chrome.
 */
button,
input,
optgroup,
select,
textarea {
  color: inherit;
  /* 1 */
  font: inherit;
  /* 2 */
  margin: 0;
  /* 3 */
}

/**
 * Address `overflow` set to `hidden` in IE 8/9/10/11.
 */
button {
  overflow: visible;
}

/**
 * Address inconsistent `text-transform` inheritance for `button` and `select`.
 * All other form control elements do not inherit `text-transform` values.
 * Correct `button` style inheritance in Firefox, IE 8/9/10/11, and Opera.
 * Correct `select` style inheritance in Firefox.
 */
button,
select {
  text-transform: none;
}

/**
 * 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio`
 *    and `video` controls.
 * 2. Correct inability to style clickable `input` types in iOS.
 * 3. Improve usability and consistency of cursor style between image-type
 *    `input` and others.
 */
button,
html input[type="button"],
input[type="reset"],
input[type="submit"] {
  -webkit-appearance: button;
  /* 2 */
  cursor: pointer;
  /* 3 */
}

/**
 * Re-set default cursor for disabled elements.
 */
button[disabled],
html input[disabled] {
  cursor: default;
}

/**
 * Remove inner padding and border in Firefox 4+.
 */
button::-moz-focus-inner,
input::-moz-focus-inner {
  border: 0;
  padding: 0;
}

/**
 * Address Firefox 4+ setting `line-height` on `input` using `!important` in
 * the UA stylesheet.
 */
input {
  line-height: normal;
}

/**
 * It's recommended that you don't attempt to style these elements.
 * Firefox's implementation doesn't respect box-sizing, padding, or width.
 *
 * 1. Address box sizing set to `content-box` in IE 8/9/10.
 * 2. Remove excess padding in IE 8/9/10.
 */
input[type="checkbox"],
input[type="radio"] {
  box-sizing: border-box;
  /* 1 */
  padding: 0;
  /* 2 */
}

/**
 * Fix the cursor style for Chrome's increment/decrement buttons. For certain
 * `font-size` values of the `input`, it causes the cursor style of the
 * decrement button to change from `default` to `text`.
 */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  height: auto;
}

/**
 * 1. Address `appearance` set to `searchfield` in Safari and Chrome.
 * 2. Address `box-sizing` set to `border-box` in Safari and Chrome.
 */
input[type="search"] {
  -webkit-appearance: textfield;
  /* 1 */
  box-sizing: content-box;
  /* 2 */
}

/**
 * Remove inner padding and search cancel button in Safari and Chrome on OS X.
 * Safari (but not Chrome) clips the cancel button when the search input has
 * padding (and `textfield` appearance).
 */
input[type="search"]::-webkit-search-cancel-button,
input[type="search"]::-webkit-search-decoration {
  -webkit-appearance: none;
}

/**
 * Define consistent border, margin, and padding.
 */
fieldset {
  border: 1px solid #c0c0c0;
  margin: 0 2px;
  padding: 0.35em 0.625em 0.75em;
}

/**
 * 1. Correct `color` not being inherited in IE 8/9/10/11.
 * 2. Remove padding so people aren't caught out if they zero out fieldsets.
 */
legend {
  border: 0;
  /* 1 */
  padding: 0;
  /* 2 */
}

/**
 * Remove default vertical scrollbar in IE 8/9/10/11.
 */
textarea {
  overflow: auto;
}

/**
 * Don't inherit the `font-weight` (applied by a rule above).
 * NOTE: the default cannot safely be changed in Chrome and Safari on OS X.
 */
optgroup {
  font-weight: bold;
}

/* Tables
   ========================================================================== */
/**
 * Remove most spacing between table cells.
 */
table {
  border-collapse: collapse;
  border-spacing: 0;
}

td,
th {
  padding: 0;
}

/*CSS Reset*/
body,
div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
code,
form,
fieldset,
legend,
input,
textarea,
p,
blockquote,
th,
td,
header,
nav,
section,
article,
aside,
footer,
figure,
figcaption,
menu,
button {
  margin: 0;
  padding: 0;
}

* {
  box-sizing: border-box;
}

body {
  font-family: "Microsoft YaHei";
  line-height: 1;
  font-size: 12px;
  color: #000;
  background-color: #fff;
  -webkit-user-select: none;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  outline: 0;
}

h1, h2, h3, h4, h5, h6 {
  font-size: 100%;
  font-weight: normal;
}

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

caption, th {
  text-align: left;
}

fieldset,
img {
  border: 0;
}

li {
  list-style: none;
}

ins {
  text-decoration: none;
}

del {
  text-decoration: line-through;
}

input,
button,
textarea,
select,
optgroup,
option {
  font-family: inherit;
  font-size: inherit;
  font-style: inherit;
  font-weight: inherit;
  outline: 0;
}

button {
  -webkit-appearance: none;
  border: 0;
  background: none;
}

a {
  -webkit-touch-callout: none;
  text-decoration: none;
}

:focus {
  outline: 0;
  -webkit-tap-highlight-color: transparent;
}

em, i {
  font-style: normal;
}

.clearfix:after {
  content: '';
  display: table;
  clear: both;
}

.u-dialog-wrap {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.3);
  z-index: 10000;
}
.u-dialog-wrap .u-dialog {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 570px;
  height: 154px;
  margin-left: -285px;
  margin-top: -277px;
  padding-top: 20px;
  border: 10px solid #db7aaa;
  background-color: #fff;
  border-radius: 5px;
  text-align: center;
  font-size: 20px;
}
.u-dialog-wrap .u-dialog .btn {
  position: absolute;
  bottom: 25px;
  width: 70px;
  height: 30px;
  line-height: 30px;
  color: #fff;
  background-color: #db7aaa;
  font-size: 16px;
}
.u-dialog-wrap .u-dialog .btn-submit {
  left: 180px;
}
.u-dialog-wrap .u-dialog .btn-cancel {
  right: 180px;
  background-color: #ddd;
  color: #222;
}

.u-head {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  height: 100px;
  background-color: #ffffff;
  font-size: 14px;
  border-bottom: 1px solid #ddd;
}
.u-head .u-top-bar {
  height: 20px;
  background-color: #4c4f4f;
}
.u-head .u-top-bar .content {
  width: 1280px;
  margin-left: auto;
  margin-right: auto;
  text-align: right;
}
.u-head .u-top-bar .content .u-download {
  padding-right: 145px;
  height: 20px;
  line-height: 20px;
  font-size: 14px;
  color: #14ef1a;
}
.u-head .u-content-wrap {
  position: relative;
  width: 1280px;
  height: 80px;
  margin-left: auto;
  margin-right: auto;
}
.u-head .u-content-wrap .logo {
  position: absolute;
  width: 258px;
  height: 55px;
  bottom: 15px;
  left: 80px;
}
.u-head .u-menus {
  position: absolute;
  left: 385px;
  bottom: 1px;
}
.u-head .u-menus .u-menu {
  float: left;
  font-size: 18px;
  padding: 0 10px;
  margin-left: 10px;
  margin-right: 10px;
  height: 45px;
}
.u-head .u-menus .u-menu a {
  color: #000;
}
.u-head .u-menus .u-menu:hover {
  opacity: .8;
}
.u-head .u-menus .u-menu:hover a {
  color: #67c4e0;
}
.u-head .u-menus .u-menu.active {
  border-bottom: 5px solid #67c4e0;
  background-color: #fff;
}
.u-head .u-menus .u-menu.active a {
  color: #67c4e0;
}
.u-head .u-member, .u-head .u-register, .u-head .u-login, .u-head .u-change-exam {
  position: absolute;
  right: 240px;
  bottom: 20px;
  width: 70px;
  height: 32px;
  line-height: 32px;
  text-align: center;
  font-size: 14px;
  border-radius: 5px;
}
.u-head .u-member:hover, .u-head .u-register:hover, .u-head .u-login:hover, .u-head .u-change-exam:hover {
  opacity: .8;
}
.u-head .u-change-exam {
  right: 310px;
  color: #fff;
  background-color: #6fb7e0;
}
.u-head .u-login {
  right: 225px;
  color: #fff;
  background-color: #db7aaa;
}
.u-head .u-register {
  right: 140px;
  color: #8fc2da;
  border: 1px solid #db7aaa;
  background-color: #fff;
}
.u-head .u-download {
  right: 210px;
}

.u-dialog {
  height: auto !important;
  padding-bottom: 80px;
}
.u-dialog .exam-list {
  text-align: left;
  padding-left: 30px;
  font-size: 14px;
}
.u-dialog .exam-list li {
  padding: 10px 20px;
}
.u-dialog .exam-list li input {
  margin-right: 5px;
}

.u-footer .u-content-wrap {
  position: relative;
  width: 1200px;
  height: 78px;
  margin-left: auto;
  margin-right: auto;
}
.u-footer .u-footer-menus {
  position: absolute;
  left: 356px;
  bottom: 12px;
}
.u-footer .u-footer-menus .u-menu {
  float: left;
  font-size: 18px;
  margin-left: 15px;
  margin-right: 15px;
}
.u-footer .u-footer-menus .u-menu a {
  color: #565656;
}
.u-footer .website-info {
  padding-top: 15px;
  height: 90px;
  background-color: #f1f1f1;
  text-align: center;
  font-size: 16px;
  line-height: 1.7;
  color: #565656;
  letter-spacing: 1px;
}

.u-page-numbers-wrap {
  position: relative;
  text-align: center;
  padding-top: 55px;
}
.u-page-numbers-wrap .u-page-numbers {
  display: inline-block;
}
.u-page-numbers-wrap .u-page-numbers .number {
  float: left;
  padding: 5px 8px;
  font-size: 16px;
  margin-right: 5px;
  border-radius: 5px;
  border: 1px solid #d4d5ca;
  color: #3d3d3d;
  cursor: pointer;
}
.u-page-numbers-wrap .u-page-numbers .number.active {
  background-color: #6fb7e0;
}
.u-page-numbers-wrap .u-page-numbers .number.active a {
  color: #fff;
}
.u-page-numbers-wrap .u-page-numbers .no-border {
  border: none;
}

.u-paper-wrap {
  position: relative;
  width: 1200px;
  min-height: 500px;
  padding-top: 30px;
  margin-left: auto;
  margin-right: auto;
  color: #3d3d3d;
}
.u-paper-wrap a {
  color: #3d3d3d;
}
.u-paper-wrap .u-brand {
  font-size: 16px;
  padding-bottom: 20px;
}
.u-paper-wrap .u-paper-types {
  border: 1px solid #d4d5ca;
  border-radius: 5px;
}
.u-paper-wrap .u-paper-types .u-paper-type {
  float: left;
  width: 140px;
  text-align: center;
  font-size: 20px;
  cursor: pointer;
}
.u-paper-wrap .u-paper-types .u-paper-type.active {
  background-color: #6fb7e0;
}
.u-paper-wrap .u-paper-types .u-paper-type a {
  display: block;
  padding: 24px;
}
.u-paper-wrap .u-paper-list {
  margin-top: 10px;
  padding: 15px 10px;
  border: 1px solid #d4d5ca;
  border-radius: 5px;
}
.u-paper-wrap .u-paper-list .paper1 {
  margin-right: 20px;
  background-color: #e8e8e5;
  height: 302px;
  padding: 20px;
}
.u-paper-wrap .u-paper-list .paper1:nth-child(3n) {
  margin-right: 0;
}
.u-paper-wrap .u-paper-list .u-paper {
  float: left;
  width: 376px;
  margin-bottom: 30px;
}
.u-paper-wrap .u-paper-list .u-paper.no-data {
  font-size: 16px;
}
.u-paper-wrap .u-paper-list .u-paper .head {
  position: relative;
  min-height: 130px;
  margin-bottom: 15px;
  padding-left: 200px;
}
.u-paper-wrap .u-paper-list .u-paper .head .u-store-wrap {
  position: absolute;
  top: 5px;
  right: 25px;
  width: 140px;
  height: 26px;
  background: url(../../../static/ico_star_empty.png);
}
.u-paper-wrap .u-paper-list .u-paper .head .u-store-wrap .store {
  height: 26px;
  background: url(../../../static/ico_star_full.png);
}
.u-paper-wrap .u-paper-list .u-paper .head .total-count {
  position: absolute;
  top: 40px;
  right: 45px;
  font-size: 14px;
}
.u-paper-wrap .u-paper-list .u-paper .head .total-count span {
  color: #6fb7e0;
}
.u-paper-wrap .u-paper-list .u-paper .head .image {
  position: absolute;
  width: 190px;
  height: 125px;
  left: 0;
  top: 0;
  background: center no-repeat;
  background-size: cover;
  border-radius: 15px;
  background-color: #d4d5ca;
}
.u-paper-wrap .u-paper-list .u-paper .head .image .tag {
  position: absolute;
  left: 0;
  top: 10px;
  padding: 5px;
  background-color: #5eba24;
  color: #fff;
  font-size: 12px;
  border-radius: 5px;
}
.u-paper-wrap .u-paper-list .u-paper .head .price {
  position: relative;
  font-size: 16px;
  font-weight: bolder;
  padding-bottom: 15px;
  padding-top: 10px;
}
.u-paper-wrap .u-paper-list .u-paper .head .price .btn-buy {
  position: absolute;
  right: 0;
  top: 0;
  font-size: 16px;
  width: 82px;
  height: 35px;
  line-height: 35px;
  text-align: center;
  background-color: #db7aaa;
  color: #fff;
  border-radius: 5px;
}
.u-paper-wrap .u-paper-list .u-paper .head .classHour, .u-paper-wrap .u-paper-list .u-paper .head .lecturerNames {
  font-size: 14px;
  padding-bottom: 5px;
  overflow: hidden;
  white-space: nowrap;
  word-break: keep-all;
  text-overflow: ellipsis;
}
.u-paper-wrap .u-paper-list .u-paper .head .time {
  font-size: 12px;
}
.u-paper-wrap .u-paper-list .u-paper .name {
  padding-right: 10px;
  font-size: 16px;
  margin-bottom: 15px;
  line-height: 1.2;
  display: -webkit-box;
  overflow: hidden;
  text-overflow: ellipsis;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}
.u-paper-wrap .u-paper-list .u-paper .introduce {
  display: -webkit-box;
  overflow: hidden;
  text-overflow: ellipsis;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  font-size: 14px;
  line-height: 1.5;
}
.u-paper-wrap .u-paper-list .u-paper .introduce .title {
  font-size: 16px;
}
.u-paper-wrap .u-my-videos .u-paper {
  position: relative;
  display: block;
  width: 100%;
  float: none;
  padding-bottom: 15px;
  border-bottom: 1px dotted #d4d5ca;
  padding-right: 650px;
  margin-bottom: 5px;
}
.u-paper-wrap .u-my-videos .u-paper .u-class-list {
  position: absolute;
  right: 0;
  top: 0;
  width: 650px;
  min-height: 210px;
  border-left: 1px dotted #d4d5ca;
}
.u-paper-wrap .u-my-videos .u-paper .u-class-list .class-type {
  border-bottom: 1px solid #6fb7e0;
}
.u-paper-wrap .u-my-videos .u-paper .u-class-list .class-type li {
  float: left;
  font-size: 18px;
  padding: 15px 40px;
  cursor: pointer;
}
.u-paper-wrap .u-my-videos .u-paper .u-class-list .class-type li.active {
  background-color: #6fb7e0;
  color: #fff;
}
.u-paper-wrap .u-my-videos .u-paper .class-list-content {
  padding-left: 15px;
  padding-right: 15px;
  height: 180px;
  overflow-y: auto;
}
.u-paper-wrap .u-my-videos .u-paper .class-list-content .class {
  position: relative;
  border-bottom: 1px dotted #d4d5ca;
}
.u-paper-wrap .u-my-videos .u-paper .class-list-content .class > a {
  display: block;
  position: relative;
  padding: 12px 0 12px 30px;
}
.u-paper-wrap .u-my-videos .u-paper .class-list-content .class span {
  margin-left: 15px;
}
.u-paper-wrap .u-my-videos .u-paper .class-list-content .class img {
  position: absolute;
  left: 0;
  top: 5px;
}
.u-paper-wrap .u-my-videos .u-paper .class-list-content .class .resource {
  position: absolute;
  right: 35px;
  top: 0;
  color: #6fb7e0;
}