h1 {
  width: 100%;
  margin: 0 auto;
  font-size: .48rem;
  line-height: 1;
  font-weight: bold;
  padding-left: .48rem;
  position: relative;
}

h1 span {
  display: inline;
  color: #dc0000;
}

h1::after {
  display: block;
  content: '';
  width: .266667rem;
  height: .266667rem;
  background-color: #dc0032;
  border-radius: .053333rem;
  opacity: 0.2;
  position: absolute;
  top: .16rem;
  left: .08rem;
}

h1::before {
  display: block;
  content: '';
  width: .266667rem;
  height: .266667rem;
  background-color: #dc0032;
  border-radius: .053333rem;
  position: absolute;
  top: .01rem;
  left: 0;
}

h1 a {
  float: right;
  font-size: .28rem;
  line-height: .48rem;
  color: #5e6370;
  font-weight: normal;
}

h1 img {
  width: .64rem;
  height: .36rem;
  position: absolute;
  left: 2.68rem;
  top: 0;
  animation: checkin 0.5s ease infinite alternate;
}

@keyframes checkin {
  0% {
    transform: translateY(0.05rem);
    -ms-transform: translateY(0.05rem);
    -moz-transform: translateY(0.05rem);
    -webkit-transform: translateY(0.05rem);
    -o-transform: translateY(0.05rem);
  }

  100% {
    transform: translateY(0);
    -ms-transform: translateY(0);
    -moz-transform: translateY(0);
    -webkit-transform: translateY(0);
    -o-transform: translateY(0);
  }
}

.lesson-list {
  width: 9.44rem;
  margin: 0 auto;
  margin-top: .386667rem;
  position: relative;
}

.lesson-list .classify-btn {
  width: 1.333333rem;
  height: 1.333333rem;
  background-color: #fdebed;
  border-radius: 50%;
  box-shadow: 0px 0px 0.4rem 0px #fdebed;
  position: absolute;
  right: .08rem;
  top: -0.8rem;
}

.lesson-list .classify-btn img {
  width: .546667rem;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  -moz-transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
  -o-transform: translate(-50%, -50%);
}

.lesson-list ul {
  width: 100%;
}

.lesson-list ul li {
  width: 100%;
  height: 2.493333rem;
  margin-bottom: .533333rem;
  border-radius: .24rem;
  box-shadow: 0px 0px 0.4rem 0px rgba(137, 137, 137, 0.19);
}

.lesson-list ul li .lesson-img {
  height: 100%;
}

.lesson-list ul li .lesson-img img {
  max-width: 3.333333rem;
  height: 100%;
  border-radius: .24rem 0 0 .24rem;
}

.lesson-list ul li .lesson-msg {
  width: 5rem;
  margin-right: .32rem;
  height: 100%;
}

.lesson-list ul li .lesson-msg a {
  width: 100%;
  font-size: .32rem;
  line-height: .4rem;
  color: #333333;
  font-weight: bold;
  margin-top: .4rem;
  height: .8rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lesson-list ul li .lesson-msg a.hui,
.lesson-list ul li .lesson-msg a.jian {
  padding-left: .6rem;
  position: relative;
}

.lesson-list ul li .lesson-msg a.hui span,
.lesson-list ul li .lesson-msg a.jian span {
  width: .44rem;
  height: .44rem;
  background-color: #ff000f;
  border-radius: .16rem;
  position: absolute;
  left: 0;
  top: 0;
  color: #ffffff;
  font-size: .266667rem;
  text-align: center;
  line-height: .44rem;
}

.lesson-list ul li .lesson-msg a.jian span {
  background-color: #fda11e;
}

.lesson-list ul li .lesson-msg p {
  width: 100%;
  text-align: right;
  color: #ff000f;
  font-size: .373333rem;
  line-height: 1;
  font-weight: bold;
  margin-top: .6rem;
}

.lesson-list ul li .lesson-msg p span {
  font-weight: normal;
  display: inline;
  text-decoration: line-through;
  color: #333333;
  font-size: .28rem;
  margin-right: .16rem;
}

.lesson-list ul li:last-child {
  margin-bottom: 0;
}

.lesson-list .page {
  width: 3.12rem;
  display: -webkit-box;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  justify-content: space-between;
  -webkit-justify-content: space-between;
  -moz-box-pack: space-between;
  box-pack: space-between;
  margin: 0 auto;
  margin-top: 1.32rem;
}

.lesson-list .page a {
  width: .586667rem;
  height: .586667rem;
}

.lesson-list .page a img {
  width: 100%;
  height: 100%;
}

.lesson-list .page p {
  font-size: .32rem;
  line-height: 1;
}

.lesson-list .page p span {
  display: inline;
}

.lesson-list .page p span:nth-child(1) {
  font-size: .533333rem;
}

.layer {
  width: 10rem;
  max-height: 100vh;
  position: fixed;
  left: 50%;
  bottom: 0;
  margin-left: -5rem;
  transform: translateY(100%);
  -ms-transform: translateY(100%);
  -moz-transform: translateY(100%);
  -webkit-transform: translateY(100%);
  -o-transform: translateY(100%);
  padding: 0 .28rem;
  padding-bottom: .8rem;
  background: #ffffff;
  overflow: hidden;
  overflow-y: scroll;
  box-shadow: 0px 0px 0.4rem 0px rgba(137, 137, 137, 0.19);
  opacity: 0;
  transition: all .3s;
  -ms-transition: all .3s;
  -moz-transition: all .3s;
  -webkit-transition: all .3s;
  -o-transition: all .3s;
}

.layer .close-layer {
  width: .48rem;
  height: .48rem;
  position: absolute;
  right: .4rem;
  top: .4rem;
}

.layer .close-layer img {
  width: 100%;
  height: 100%;
}

.layer h2 {
  height: .56rem;
  line-height: .56rem;
  font-size: .373333rem;
  margin-top: .8rem;
}

.layer h2 a {
  display: inline-block;
  width: 1.146667rem;
  height: .56rem;
  border-radius: .12rem;
  background-color: #f2f4f6;
  color: #000000;
  text-align: center;
  line-height: .56rem;
  font-size: .32rem;
}

.layer .choose-btn {
  padding-top: .133333rem;
  *zoom: 1;
}

.layer .choose-btn::after {
  display: block;
  overflow: hidden;
  clear: both;
  height: 0;
  visibility: hidden;
  content: ".";
}

.layer .choose-btn a {
  width: 2.92rem;
  margin-right: calc((100% - 2.92rem - 2.92rem - 2.92rem) / 2);
  height: .56rem;
  background-color: #f2f4f6;
  color: #000000;
  border-radius: .12rem;
  line-height: .56rem;
  font-size: .32rem;
  text-align: center;
  margin-top: .24rem;
  float: left;
}

.layer .choose-btn a:nth-child(3n) {
  margin-right: 0;
}

.layer a.this {
  color: #ffffff;
  background-color: #dc0000;
}

.layer-open {
  opacity: 1;
  z-index: 10;
  transform: translateY(0);
  -ms-transform: translateY(0);
  -moz-transform: translateY(0);
  -webkit-transform: translateY(0);
  -o-transform: translateY(0);
}