/* *********************************************
                    基本默认值  
 ***********************************************/
:root {
  --primary-color: #1b2483;
}

* {
  margin: 0;
  padding: 0;
}
h1,
h2,
h3,
p {
  margin: 0;
  padding: 0;
}
body {
  font-family: "Source Han Sans CN";
  font-size: 0.32rem;
  color: #333333;
  background-color: #fff;
}

ul,
li {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  color: #303133;
  text-decoration: none;
  cursor: pointer;
}
/* .container-fluid{
  padding: 0;
} */
a:hover {
  text-decoration: none;
}

/* .row {
  display: flex;
  flex-direction: column;
  align-items: center;
} */
.pop {
  display: none;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  position: fixed;
  top: 0;
  left: 0;
  z-index: 9999;
}
.pop .code {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.pop .phone-code {
  display: none;
}
.pop .guan {
  position: absolute;
  right: 25%;
  top: 25%;
  z-index: 9;
  cursor: pointer;
}
.COMMON-TITLE {
  text-align: center;
  margin-bottom: 1.5rem;
}

.COMMON-TITLE h2 {
  font-size: 0.72rem;
  color: #333333;
  font-weight: bold;
  margin-bottom: 0.2rem;
  position: relative;
  letter-spacing: 0.15rem;

  &::before {
    content: attr(content);
    position: absolute;
    inset: 0;
    transform-origin: 50% 100%;
    transform: rotatex(180deg) translatey(3px);
    filter: blur(3px);
    mask: linear-gradient(transparent 30%, white 90%);
  }
}

.COMMON-TITLE span {
  font-size: 0.4rem;
  color: rgba(59, 59, 59, 0.4);
}

#nav {
  width: 100%;
}
/* 二维码 */

.EWM {
  position: fixed;
  top: 11rem;
  right: 0.5rem;
  z-index: 9999;
}
.EWM .icon {
  padding: 0.1rem;
  width: 1.3rem;
  background: #ffffff;
  box-shadow: 0px 0.04rem 0.2rem 0px rgba(0, 0, 0, 0.1);
  border-radius: 0.04rem;
  border: 0.01rem solid #e3e7ec;
}
.EWM .icon > div {
  text-align: center;
  margin-bottom: 0.2rem;
  position: relative;
}
.EWM .icon > div:hover .code-img {
  width: 3rem;
  height: 3rem;
  transition: all 0.5s;
}
.code-img {
  position: absolute;
  left: -3rem;
  top: -1rem;
  width: 0rem;
  height: 0rem;
}
.bb {
  /* padding-bottom: 0.1rem; */
  border-bottom: 1px solid #eee;
}
.icon-img {
  width: 0.5rem;
  height: 0.5rem;
}
.font_1 {
  font-size: 0.24rem;
  color: #999;
}
.EWM:hover {
  cursor: pointer;
}

/* *********************************************
                  header
***********************************************/
.header {
  width: 100%;
  height: 1.8rem;
  line-height: 0.9rem;
  /* padding: 0 10% 0 20%; */
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  background: #fff;
  box-shadow: 0 0.06rem 0.1rem 0 rgba(0, 0, 0, 0.1);
}
.active {
  color: #263cc0;
  font-weight: bold;
}
.header .left {
  width: 2.6rem;
  height: 0.6rem;
  display: flex;
  align-items: center;
}

.header .left img {
  width: 100%;
  height: 100%;
}

.header .right {
  display: flex;
  font-size: 0.32rem;
  color: #666666;
  cursor: pointer;
}

.header .right div {
  margin: 0 0.4rem;
}

/* *********************************************
                  banner
***********************************************/
header {
  /* display: flex;
  justify-content: center; */
  width: 100%;
  height: 13rem !important;
  position: relative;
  /* background: #418d89; */
  background: url(../img/default-bg-header.png) center no-repeat;
  background-size: cover;
}

.header-title {
  width: 100%;
  color: #ffffff;
  /* width: 30%; */
  text-align: center;
  padding: 1.2rem 2%;
  /* background: rgba(224, 224, 224, 0.6); */
  /* margin: 0 2rem 0 -10.8rem; */
}
.header-title .name {
  width: 100%;
}
.header-title h1 {
  font-size: 1rem;
  font-weight: bold;
  letter-spacing: 0.1rem;
  color: #fff;
  margin-bottom: 0.6rem;
  /* text-shadow: 3px 2px #418d89; */
}
.header-title .title {
  font-size: 2rem;
  font-weight: bold;
  letter-spacing: 0.1rem;
  color: #ffdc94;
}
.header-title .label {
  display: flex;
  justify-content: center;
  margin-top: 0.6rem;
}
.header-title .item-label {
  display: flex;
  align-items: center;
  font-weight: normal;
  font-size: 0.48rem;
  margin-right: 0.6rem;
}
.header-title .item-label img {
  width: 0.84rem;
  height: 0.8rem;
}
.header-title p {
  font-size: 1.3rem;
  letter-spacing: 0.2rem;
}
.header-title .label_2 {
  color: #fedf9b;
  font-size: 0.48rem;
  margin-top: 1rem;
}
.header-title-btn {
  text-align: center;

  margin: 0 auto;
}
.header-title-btn .btn {
  margin-bottom: 0.3rem;
  width: 6.8rem;
  line-height: 1rem;
  background: linear-gradient(180deg, #fce9b7 0%, #ffdc94 100%), #ee3b3b;
  border-radius: 7rem;
  cursor: pointer;
  font-size: 0.4rem;
  color: #c73e3e;
  margin-right: 0.4rem;
}
.header-title-btn .btn:hover {
  transition: all 0.5s;
  color: #fce9b7;
  background: #c73e3e;
}

/* *********************************************
                  preparation
***********************************************/
.preparation {
  margin-top: 1.6rem;
  background: #fff;
}
.row {
  margin: 0;
}
.preparation-title {
  text-align: center;
}
.preparation-title .title_1 {
  font-size: 0.72rem;
  font-weight: bold;
}
.preparation-title .title_2 {
  font-size: 0.32rem;
  color: #666;
  margin-top: 0.2rem;
}
.preparation-content {
  /* display: flex; */
  /* padding: 0 15%; */
  /* background: url(../img/default-banner-header.jpg) center no-repeat;
  background-size: cover; */
  /* background: #fff; */
  width: 70%;
  margin: 0 auto;
  margin-top: 2rem;
  border-radius: 0.2rem;
}
.preparation-item {
  background: linear-gradient(360deg, #ffdba9 0%, #ffddad 100%);
  border-radius: 0.4rem;
  padding-top: 1.6rem;
  position: relative;
  padding-bottom: 1rem;
}
.preparation-item .icon {
  width: 2rem;
  height: 2rem;
  position: absolute;
  top: -1rem;
  left: 50%;
  transform: translateX(-50%);
}
.preparation-content .line_1 {
  font-size: 0.48rem;
  color: #c73e3e;
  text-align: center;
}
.preparation-content .line_2 {
  padding-left: 0.3rem;
  margin-top: 0.4rem;
}
.preparation-content .line_2 img {
  width: 0.24rem;
  height: 0.24rem;
  margin-right: 0.1rem;
}
.preparation-item .item-btn {
  width: 2.4rem;
  line-height: 1rem;
  background: #c73e3e;
  border-radius: 0.6rem;
  text-align: center;
  color: #fff;
  margin: 0.6rem auto 0;
  cursor: pointer;
}
.preparation-item .item-btn:hover {
  background: #fff;
  color: #c73e3e;
  transition: all 0.5s;
}
.preparation-tab {
  line-height: 1.4rem;
  background: linear-gradient(360deg, #ffdba9 0%, #ffddad 100%);
  border-radius: 0.2rem;
  text-align: center;
  color: #90251b;
  margin-top: 0.5rem;
  font-size: 0.48rem;
}
.preparation .more-btn {
  width: 7rem;
  line-height: 1.4rem;
  background: #ee3b3b;
  border: 0.01rem solid #ee3b3b;
  border-radius: 0.7rem;
  text-align: center;
  color: #fff;
  font-size: 0.4rem;
  margin: 1rem auto;
  cursor: pointer;
}
.preparation .more-btn:hover {
  color: #ee3b3b;
  background: #fff;
  transition: all 0.5s;
}
/* *********************************************
                     content
***********************************************/
.choose {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  /* padding: 2rem 0; */
  /* background: #fff; */
}

.choose-title h2 {
  color: #fff;
}

.choose-title span {
  color: #fff;
  font-size: 0.32rem;
}

.choose-list {
  padding: 1rem 7.2rem;
  background: url("../img/Group 3203.png") center no-repeat;
  background-size: cover;
}
.choose-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}
.choose-item {
  width: 3rem;
  line-height: 1rem;
  background: #ffffff;
  text-align: center;
  margin-bottom: 0.4rem;
}
.choose-group div:last-child {
  background: #fedd96;
  color: #c73e3e;
}
.choose-list .choose-btn {
  font-size: 0.4rem;
  width: 6.2rem;
  line-height: 1.2rem;
  color: #c73e3e;
  text-align: center;
  background: linear-gradient(180deg, #fbebbc 0%, #ffdb93 100%);
  border-radius: 0.7rem;
  margin: 1rem auto 0;
  cursor: pointer;
}
.choose-list .choose-btn:hover {
  background: #c73e3e;
  color: #fbebbc;
  transition: all 0.5s;
}

/* *********************************************
                     collect
***********************************************/
.collect {
  /* background: #fff; */
}

.collect-title h2 {
  color: #333;
}

.collect-title span {
  color: #666;
  font-size: 0.32rem;
}

.collect-list {
  padding: 1rem 9.2rem;
}
.collect-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin-bottom: 1rem;
}
.collect-item {
  width: 2rem;
  background: #ffffff;
  text-align: center;
  margin-bottom: 0.4rem;
  font-size: 0.4rem;
  color: #666;
}
.collect-item img {
  width: 2rem;
  height: 2rem;
}

.collect-list .collect-btn {
  font-size: 0.4rem;
  width: 6.2rem;
  line-height: 1.2rem;
  color: #fff;
  text-align: center;
  background: #ee3b3b;
  border: 0.01rem solid #ee3b3b;
  border-radius: 0.7rem;
  margin: 1rem auto 0;
  cursor: pointer;
}
.collect-list .collect-btn:hover {
  background: #fff;
  color: #ee3b3b;
  transition: all 0.5s;
}
/* *********************************************
                     course
***********************************************/
.course {
  padding: 1rem 11.2rem;
  /* background: #fff; */
}

.course-title h2 {
  color: #333;
}

.course-title span {
  color: #666;
  font-size: 0.32rem;
}
.course-group {
  border: 1px solid #f2462a;
}
.course-bg {
  padding: 0.4rem 0;
  background: #f2462a;
  height: 2rem;
  color: #fff;
  text-align: center;
  font-size: 0.4rem;
}
.lh {
  line-height: 1rem;
}
.course .th {
  text-align: center;
  padding: 0.3rem 0;
  color: #666;
}
.course .th img {
  width: 0.48rem;
  height: 0.448rem;
}
.course .th p {
  font-size: 0.2rem;
  width: 2rem;
}
.course .th div:first-child {
  text-align: start;
  padding-left: 1rem;
  color: #333;
  font-weight: bold;
}
.course .th:nth-child(2n + 1) {
  background: #ffeed4;
}

/* *********************************************
                     course
***********************************************/
.crowd {
  padding: 1rem 11rem;
  /* background: #fff; */
}

.crowd-title h2 {
  color: #333;
}

.crowd-title span {
  color: #666;
  font-size: 0.32rem;
}
.crowd-list {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}
.crowd-item {
  width: 7.9rem;
  border: 0.02rem solid #c3c9d0;
  padding: 0.6rem 0;
  text-align: center;
  position: relative;
  margin-bottom: 2rem;
}
.crowd-item img {
  position: absolute;
  width: 1.8rem;
  height: 1.8rem;
  left: 0.6rem;
  top: -0.9rem;
}
.crowd-item .line_1 {
  font-weight: bold;
  font-size: 0.4rem;
}
.crowd-item .line_2 {
  font-size: 0.28rem;
  color: #666;
  margin: 0.6rem 0 0.2rem;
}
.crowd-item .line_3 {
  color: #c73e3e;
  font-weight: bold;
}

/* *********************************************
                     certificate
***********************************************/
.certificate {
  margin-top: 2.4rem;
  padding: 1.6rem 11.2rem;
}
.certificate-title .title_1 {
  margin-top: 0.6rem;
  font-size: 0.72rem;
  font-weight: bold;
  text-align: center;
}
.certificate-title .title_2 {
  font-size: 0.32rem;
  color: #666;
  margin-top: 0.2rem;
  text-align: center;
}
.certificate-list {
  /* display: flex; */
  /* margin-top: 1rem; */
  margin-bottom: 0.3rem;
  width: 100%;
}
.certificate-label {
  text-align: center;
  margin-top: 0.4rem;
}
.certificate-list .tab {
  display: flex;
  align-items: center;
}
.certificate-list .tab-list {
  display: flex;
  justify-content: center;
}
.certificate-list .tab {
  margin-right: 0.4rem;
  font-size: 0.28rem;
  color: #666;
}
.certificate-list .tab div {
  width: 0.48rem;
  height: 0.1rem;
  background: #e05555;
  margin-right: 0.1rem;
}
.certificate-list .tab:nth-child(2) div {
  background: #f8b551;
}
.certificate-list .tab:nth-child(3) div {
  background: #a5a5a5;
}
.img-list {
  position: relative;
  width: 16rem;
  height: 7rem;
  overflow: hidden;

  display: flex;
}
.img-list img {
  width: 16rem;
  animation: slide 10s ease infinite;
}

@keyframes slide {
  0%,
  30% {
    transform: translateX(0);
  }
  40%,
  80% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(0);
  }
}
.certificate-group {
  margin-top: 2rem;
  display: flex;
  justify-content: space-between;
}
.certificate-group .item {
  width: 5rem;
  border: 0.04rem solid #f2462a;
  padding: 0.8rem;
  text-align: center;
}
.certificate-group .item:nth-child(2) {
  border: 0.04rem solid #218ee5;
}
.certificate-group .item:nth-child(2) .line_4 {
  background: #218ee5;
}
.certificate-group .item:nth-child(3) .line_4 {
  background: #fc7d50;
}
.certificate-group .item:nth-child(2) .line_1 {
  color: #218ee5;
}
.certificate-group .item:nth-child(3) .line_1 {
  color: #fc7d50;
}
.certificate-group .item:nth-child(3) {
  border: 0.04rem solid #fc7d50;
}
.certificate-group .line_1 {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.38rem;
  font-weight: bold;
  color: #f2462a;
}
.certificate-group .line_1 img {
  width: 0.4rem;
  height: 0.4rem;
  margin-right: 0.2rem;
}
.certificate-group .line_2 {
  font-size: 0.6rem;
  font-weight: bold;
  margin: 0.4rem 0 0.6rem;
}
.certificate-group .line_3 {
  color: #666;
}
.certificate-group .line_4 {
  width: 2.4rem;
  line-height: 1rem;
  background: #f2462a;
  border-radius: 0.6rem;
  color: #fff;
  margin: 0.8rem auto 0;
  cursor: pointer;
}

.certificate-btn {
  display: flex;
  justify-content: space-around;
}
.certificate-btn div {
  width: 7rem;
  line-height: 1.4rem;
  background: #ee3b3b;
  border: 0.01rem solid #ee3b3b;
  border-radius: 0.7rem;
  text-align: center;
  color: #fff;
  margin-top: 1rem;
  cursor: pointer;
}
.certificate-btn div:hover {
  background: #fff;
  color: #ee3b3b;
  transition: all 0.5s;
}
/* *********************************************
                     advantage
***********************************************/
.advantage {
  padding: 1rem 7.2rem;
  background: #fff;
}

.advantage-title .title_1 {
  font-size: 0.72rem;
  font-weight: bold;
  color: #333;
  text-align: center;
}
.advantage-title .title_2 {
  font-size: 0.32rem;
  color: #666;
  text-align: center;
  margin-top: 0.2rem;
}
.advantage-list {
  margin-top: 1rem;
}
.advantage-bg {
  background: #fe5b48;
  text-align: center;
  color: #fff;
  line-height: 1.2rem;
}
.advantage-bober {
  border: 0.01rem solid #fe5b48;
  padding: 0.5rem;
  height: 2.6rem;
  border-top: none;
  color: #666;
}
.advantage-label {
  border: 0.01rem solid #fe5b48;
  border-right: none;
  border-top: none;
  text-align: center;
  line-height: 2.58rem;
  font-weight: bold;
}
.mt-50 {
  margin-top: 0.6rem;
}

/* *********************************************
                     topics
***********************************************/
.topics {
  width: 100%;
  /* background-color: var(--primary-color); */
  padding: 2rem 11rem;
}
.topics-title h2 {
  color: #333;
}

.topics-title span {
  color: #666;
  font-size: 0.32rem;
}

.topics-item {
  background: #fff;
  border-radius: 0.2rem;
  margin-bottom: 0.4rem;
  text-align: center;
}

/* *********************************************
                     plan
***********************************************/
.plan {
  /* background-color: #e3f1ef; */
  padding: 4% 0 0;
}

.plan-title h2 {
  color: var(--primary-color);
}

.plan-title span {
  color: var(--primary-color);
  opacity: 0.2;
}
.plan-body {
  /* display: flex;
	justify-content: space-between; */
  /* width: 53%; */
  margin: 0 auto;
  width: 80%;
  /* background: #fff; */
  border-radius: 0.1rem;
  /* box-shadow: 0 0.1rem 0.3rem 0.1rem  rgba(224, 224, 224, 0.6); */
  padding-bottom: 1rem;
}
.plan-main {
  /* width: 50%; */
  padding: 0 5%;
}
.plan-card {
  background: #fff;
  box-shadow: 0 0.1rem 0.3rem 0.1rem rgba(224, 224, 224, 0.6);
  /* padding: 0.2rem; */
  border-radius: 0.2rem;
  margin-bottom: 0.5rem;
  padding: 0.5rem;
}

.plan-title {
  font-size: 0.4rem;
  font-weight: bold;
}
.card-title {
  display: flex;
  align-items: center;
  background: var(--primary-color);
  color: #fff;
  font-size: 0.36rem;
  border-radius: 0.2rem;
  padding: 0.3rem 0.4rem;
  font-weight: bold;
}
.card-title div:first-child {
  /* background: #f77e93; */
  padding: 0.2rem 0;
  text-align: center;
  margin-right: 0.3rem;
  color: #fff;
  border-radius: 1rem;
}
.card-title div:last-child {
  font-size: 0.4rem;

  padding: 0.2rem 0.4rem;
  /* background: var(--primary-color); */

  color: #fff;
}

.card-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 2.5rem;
  padding: 0.2rem 0;
  font-size: 0.3rem;
  line-height: 0.55rem;
  color: #333;
  border-radius: 0.2rem;
  /* height: 5rem; */
  /* color: var(--primary-color); */
}
.info {
  text-align: center;
  color: #333;
  font-weight: bold;
  font-size: 0.6rem;
}
.plan-2:nth-child(5) {
  border-radius: 0 0 0.2rem 0.2rem;
}

/* *********************************************
                     method
***********************************************/
.method {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 12rem;
  background-color: var(--primary-color);
}

.method img {
  width: 9rem;
  height: 9.6rem;
}

.method-title {
  text-align: start;
}

.method-title h2 {
  color: #fff;
}

.method-title span {
  opacity: 0.2;
}

.method-main {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  width: 9.44rem;
  margin-right: 4.16rem;
}

.method-des {
  font-size: 0.32rem;
  color: #ffffff;
  margin: 1rem 0 0.8rem;
}

.method-tips {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}

.method-item {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 4.52rem;
  height: 1rem;
  background-color: #f0dc29;
  margin: 0.2rem 0;
}

.method-item img {
  width: 0.48rem;
  height: 0.48rem;
  margin-right: 0.2rem;
}

.method-item p {
  font-size: 0.28rem;
}

/* *********************************************
                     suitable
***********************************************/
.suitable {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 15.72rem;
  margin-top: 2.4rem;
}

.suitable-list {
  display: flex;
  width: 100%;
  padding: 2% 5%;
  /* margin-top: 1rem; */
}

.suitable-list-1 {
  width: 40%;
  /* display: flex;
  flex-direction: column; */
  padding-top: 0.8rem;
  margin: 0 0.2rem;
}

.suitable-list-2 {
  width: 40%;
  /* display: flex;
  flex-direction: column; */
  margin: 0 0.2rem;
}

.suitable-item {
  display: flex;
  flex-direction: column;
  /* width: 5rem; */
  /* height: 4.88rem; */
  background-color: #ffffff;
  border: 1px dashed #d6d3d3;
  padding: 0.8rem 0.5rem;
  border-radius: 0.2rem;
  text-align: center;
}

.suitable-item img {
  width: 1rem;
  height: 1rem;
  display: block;
  margin: 0 auto;
}

.suitable-item h3 {
  font-size: 0.4rem;
  font-weight: bold;
  margin: 0.4rem 0 0.2rem;
}

.suitable-item p {
  font-size: 0.28rem;
  color: #666666;
}

.pl40 {
  padding-left: 0.8rem;
}

.pl36 {
  padding-left: 0.72rem;
}

.pl28 {
  padding-left: 0.56rem;
}

.mt20 {
  margin-top: 0.4rem;
}

/* *********************************************
                     footer
   ***********************************************/
footer {
  display: flex;
  align-items: center;
  width: 100%;
  height: 1.9rem !important;
  padding: 0 !important;
  background: #1e2a38;
}

.footer {
  width: 100%;
  overflow: hidden;
}

.footer-right {
  line-height: 0.32rem;
  font-size: 0.32rem;
  color: #999999;
}

.footer-right a {
  color: #999999;
}

.footer-right a:hover {
  text-decoration: underline;
}

.footer-right_link {
  display: flex;
  align-items: center;
  margin-top: 0 !important;
}

.police {
  display: flex;
  align-items: center;
  margin-left: 0.6rem;
}

.police p {
  margin-left: 0.1rem;
}

.back-top {
  position: fixed;
  bottom: 1rem;
  right: 4rem;
  cursor: pointer;
  z-index: 99;
}

.back-top img {
  width: 1rem;
  height: 1rem;
}
.app-header {
  display: none;
}
#app-nav {
  display: none;
}
/*  app */
@media (min-width: 0px) and (max-width: 768px) {
  html {
    font-size: 30px;
  }
  .EWM{
    display: none;
  }
  .back-top {
    right: 2rem;
  }
  .pop .code {
    display: none;
  }
  .pop .phone-code {
    display: block;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 9rem;
    height: 13rem;
  }
  .pop .guan {
    right: 5%;
    top: 15%;
  }
  /* 
    header
  */
  header {
    /* display: flex;
  justify-content: center; */
    height: 13rem !important;
    /* background: #418d89; */
    background: url("../img/Group 3235.png") center no-repeat;
    background-size: 100% 100%;
  }
  .header-title .title {
    font-size: 1.1rem;
    font-weight: bold;
    color: #ffdc94;
  }
  .header {
    display: none;
  }
  .header-title p {
    font-size: 0.5rem;
  }
  /* 
    preparation
 */

  .preparation-content {
    width: 100%;
  }
  .preparation-item {
    padding: 0.4rem;
    font-size: 0.44rem;
    margin-bottom: 0.4rem;
    /* height: 10rem; */
  }
  .preparation-item .icon {
    display: none;
  }
  .preparation-tab {
    display: none;
  }
  /* 
    certificate
  */
  .certificate {
    padding: 1.6rem 1rem;
  }
  .img-list {
    width: 100%;
    height: 5.6rem;
  }
  .img-list img {
    width: 100%;
    height: 100%;
  }
  .certificate-group {
    flex-wrap: wrap;
  }
  .certificate-group .item {
    margin: 0.4rem auto 0;
  }
  .certificate-btn {
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }
  /* 
    advantage
 */

  .advantage {
    padding: 1rem;
  }

  .advantage-label {
    height: 5rem;
  }

  .advantage-bober {
    height: 5rem;
  }
  /* 
    course
  */
  .course {
    padding: 1rem;
  }
  .course-bg {
    height: 3.5rem;
    padding: 0.4rem;
  }
  /* 
  crowd
*/
  .crowd {
    padding: 1rem;
    /* background: #fff; */
  }

  .crowd-item {
    width: 100%;
  }
  .crowd-item img {
    width: 2rem;
    height: 2rem;
    left: 0.9rem;
    top: -1rem;
  }
  .crowd-item .line_1 {
    font-size: 0.6rem;
  }
  .crowd-item .line_2 {
    font-size: 0.4rem;
  }
  .crowd-item .line_3 {
    font-size: 0.3rem;
  }
  /* 
  topics
*/
  .topics {
    width: 100%;
    /* background-color: var(--primary-color); */
    padding: 2rem 1rem;
  }
  .choose-list {
    padding: 0.5rem;
  }
  .collect-list {
    padding: 0.5rem;
  }

  .app-header {
    display: block;
    width: 100%;
    position: fixed;
    height: 1.8rem;
    padding: 0.4rem;
    background: #fff;
    z-index: 999;
  }
  .app-header .icon {
    width: 1rem;
    height: 1rem;
  }
  .line {
    position: relative;
  }
  .app-header .logo {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 3.6rem;
    height: 1rem;
    text-align: center;
  }
  /* #app-nav {
    position: fixed;
    width: 33%;
    height: calc(100vh - 1.8rem);
    background: #fff;
    z-index: 999;
    text-align: center;
    font-size: 0.4rem;
    line-height: 1.2rem;
  }
  #app-nav div {
    display: flex;
    flex-direction: column;
  } */
}