:root {
  --theme_color: #ffac00;
}
.pmmktM_introduce {
  background-color: #f8f8f8;
}
.pmmktM_introduce_title {
  text-align: center;
  letter-spacing: 0.012rem;
  line-height: 1;
}
.pmmktM_introduce_title.white h3,
.pmmktM_introduce_title.white p {
  color: #fff !important;
}
.pmmktM_introduce_title h3 {
  font-size: 0.36rem;
  letter-spacing: 0.018rem;
  color: #333333;
  font-weight: bold;
  margin-bottom: 0.2rem;
}
.pmmktM_introduce_title p {
  font-size: 0.24rem;
  color: #666666;
}
.pmmktM_introduce_btn {
  display: block;
  width: 3.2rem;
  height: 0.72rem;
  line-height: 0.72rem;
  background-color: var(--theme_color);
  border-radius: 0.36rem;
  text-align: center;
  font-size: 0.28rem;
  letter-spacing: 0.014rem;
  color: #ffffff;
}
.pmmktM_introduce_banner_con {
  position: relative;
  height: 100%;
}
.pmmktM_introduce_banner .show img {
  display: block;
  width: 100%;
}
.pmmktM_introduce_banner_edit {
  position: absolute;
  left: 0.56rem;
  bottom: 0.38rem;
}
.pmmktM_introduce_skill {
  padding-top: 0.62rem;
}
.pmmktM_introduce_skill_con {
  width: 7.02rem;
  margin: 0.42rem auto 0;
}
.pmmktM_introduce_skill_card .nav p {
  flex: 1;
  line-height: 0.8rem;
  padding-bottom: 0.2rem;
  text-align: center;
  font-size: 0.32rem;
  letter-spacing: 0.016rem;
  color: #333333;
  border-radius: 0.16rem 0.16rem 0rem 0rem;
  border: solid 0.01rem #ececec;
}
.pmmktM_introduce_skill_card .nav p.active {
  background-color: #ffac00;
  color: #ffffff;
}
.pmmktM_introduce_skill_card .content {
  position: relative;
  background-color: #ffffff;
  border-radius: 0.16rem;
  margin-top: -0.2rem;
  z-index: 2;
}
.pmmktM_introduce_skill_card .content_con .item {
  display: none;
}
.pmmktM_introduce_skill_card .content_con .item.active {
  display: block;
}
.pmmktM_introduce_skill_card .content_con .item .list {
  font-size: 0.28rem;
  padding: 0.28rem 0.24rem;
}
.pmmktM_introduce_skill_card .content_con .item_text {
  border-radius: 0.08rem;
  border: solid 0.01rem #ececec;
}
.pmmktM_introduce_skill_card .content_con .item_text:not(:last-child) {
  margin-bottom: 0.16rem;
}
.pmmktM_introduce_skill_card .content_con .item_text.active .front::before {
  transform: rotate(180deg);
}
.pmmktM_introduce_skill_card .content_con .item_text.active .reverse {
  display: block;
}
.pmmktM_introduce_skill_card .content_con .item_text_con .front {
  position: relative;
  height: 0.8rem;
  padding: 0.2rem 0.5rem 0.2rem 0;
}
.pmmktM_introduce_skill_card .content_con .item_text_con .front::before {
  position: absolute;
  top: 45%;
  right: 0.24rem;
  content: "";
  clear: both;
  display: block;
  width: 0.18rem;
  height: 0.09rem;
  background: url(http://file.pmddw.com/course/m/images/introduce/icon_arrow@2x.png) no-repeat;
  background-size: contain;
  transform: rotate(0deg);
  transition: 0.2s linear;
}
.pmmktM_introduce_skill_card .content_con .item_text_con .front_show {
  width: 1rem;
  height: 100%;
}
.pmmktM_introduce_skill_card .content_con .item_text_con .front_show img {
  display: block;
  max-height: 100%;
  margin: 0 auto;
}
.pmmktM_introduce_skill_card .content_con .item_text_con .front p {
  font-size: 0.28rem;
  letter-spacing: 0.014rem;
  color: #333333;
  line-height: 1;
}
.pmmktM_introduce_skill_card .content_con .item_text_con .reverse {
  display: none;
  padding: 0.1rem 0.25rem 0.2rem 0.25rem;
}
.pmmktM_introduce_skill_card .content_con .item_text_con .reverse p {
  font-size: 0.24rem;
  letter-spacing: 0.014rem;
  color: #333333;
  line-height: 1.4;
}
.pmmktM_introduce_path {
  padding-top: 0.85rem;
}
.pmmktM_introduce_path_con {
  margin-top: 0.45rem;
}
.pmmktM_introduce_path_show img {
  display: block;
  width: 100%;
}
.pmmktM_introduce_path_edit {
  position: fixed;
  left: 50%;
  bottom: 0.52rem;
  transform: translateX(-50%);
}
.pmmktM_introduce_path_edit a {
  width: 4.8rem;
}
.pmmktM_introduce_function {
  padding: 0.8rem 0 0.6rem;
}
.pmmktM_introduce_function_con {
  width: 7.02rem;
  margin: 0.45rem auto 0;
}
.pmmktM_introduce_function_list .item {
  padding: 0.4rem 0.25rem;
  width: 100%;
  background-color: #ffffff;
  border-radius: 0.12rem;
  background-repeat: no-repeat;
}
.pmmktM_introduce_function_list .item:nth-child(odd) {
  background-image: url(http://file.pmddw.com/course/m/images/introduce/icon_function_1@2x.png);
  background-position: center 63%;
  background-size: 2.4rem 2.4rem;
}
.pmmktM_introduce_function_list .item:nth-child(even) {
  background-image: url(http://file.pmddw.com/course/m/images/introduce/icon_function_2@2x.png);
  background-position: 4.85rem 2.3rem;
  background-size: 1.25rem 1.25rem;
}
.pmmktM_introduce_function_list .item:nth-child(4) {
  background-position: center;
}
.pmmktM_introduce_function_list .item > div {
  height: 100%;
}
.pmmktM_introduce_function_list .item:not(:last-child) {
  margin-bottom: 0.24rem;
}
.pmmktM_introduce_function_list .item a {
  width: 4.8rem;
  margin: 0.6rem auto 0;
}
.pmmktM_introduce_function_list .item_text .desc p {
  font-size: 0.24rem;
  line-height: 0.36rem;
  letter-spacing: 0.012rem;
  color: #333333;
}
.pmmktM_introduce_function_list .item_text .desc p.name {
  font-size: 0.32rem;
  color: #ffac00;
  font-weight: bold;
  margin-bottom: 0.2rem;
}
.pmmktM_introduce_function_list .item_show {
  margin-top: 0.3rem;
}
.pmmktM_introduce_function_list .item_show img {
  display: block;
  max-width: 100%;
  max-height: 2.48rem;
  margin: 0 auto;
}
.pmmktM_introduce_teacher {
  padding: 0.6rem 0 0.4rem;
  background-image: linear-gradient(-48deg, #13152e 0%, #182249 50%, #1a2b59 100%), linear-gradient(#002151, #002151);
}
.pmmktM_introduce_teacher_con {
  margin-top: 0.6rem;
}
.pmmktM_introduce_teacher_list {
  padding: 0 0.24rem;
}
.pmmktM_introduce_teacher_list .item {
  position: relative;
  display: block;
  width: 1.6rem;
  height: 2.2rem;
  background-image: linear-gradient(0deg, #1b234a 18%, #2a407b 100%);
  overflow: hidden;
  border-radius: 4px;
  border: 1px solid #3854aa;
  margin-bottom: 0.25rem;
}
.pmmktM_introduce_teacher_list .item:not(:nth-child(4n+4)) {
  margin-right: 0.2rem;
}
.pmmktM_introduce_teacher_list .item .show img {
  display: block;
  max-width: 80%;
  max-height: 80%;
  margin: 20% auto 0;
}
.pmmktM_introduce_teacher_list .item .text {
  position: absolute;
  bottom: 0;
  left: 0;
  display: block;
  width: 100%;
  height: 0.54rem;
  background-image: linear-gradient(0deg, #ffac00 14%, #538ed7 100%), linear-gradient(#75a6dd, #75a6dd);
}
.pmmktM_introduce_teacher_list .item .text p {
  font-size: 0.28rem;
  letter-spacing: 0.014rem;
  color: #ffffff;
  text-align: center;
  line-height: 0.54rem;
}
.pmmktM_introduce_cooperation {
  padding: 0.5rem 0 0.4rem;
  background-color: #f2f2f2;
}
.pmmktM_introduce_cooperation h3 {
  position: relative;
  padding-bottom: 0.3rem;
}
.pmmktM_introduce_cooperation h3::before {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  content: "";
  clear: both;
  display: block;
  width: 0.64rem;
  height: 0.04rem;
  background-color: #ffac00;
  border-radius: 0.02rem;
}
.pmmktM_introduce_cooperation_con {
  margin-top: 0.4rem;
  padding: 0 0.25rem;
}
.pmmktM_introduce_cooperation_show img {
  display: block;
  width: 100%;
}
.pmmktM_introduce_adBottom {
  height: 4.16rem;
  padding-top: 0.65rem;
  box-sizing: border-box;
  background: url(http://file.pmddw.com/course/m/images/introduce/bg_adbottom@2x.png) #191b28 no-repeat center;
  background-size: 100%;
}
.pmmktM_introduce_adBottom_con {
  padding-left: 0.6rem;
}
.pmmktM_introduce_adBottom_con .text p {
  font-size: 0.36rem;
  line-height: 1.8;
  letter-spacing: 0.028rem;
  color: #ffffff;
  font-weight: bold;
}
.pmmktM_introduce_adBottom_con a {
  margin-top: 0.8rem;
}
.mask {
  position: fixed;
  top: 0;
  left: 0;
  display: none;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  z-index: 99;
}
.mask.active {
  display: block;
}
.mask_con {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.mask_con i.icon_mask_close {
  position: absolute;
  left: 50%;
  bottom: -0.4rem;
  transform: translate(-50%, 100%);
  display: block;
  width: 0.6rem;
  height: 0.6rem;
  background: url(http://file.pmddw.com/course/m/images/introduce/icon_close.png) no-repeat;
  background-size: contain;
  cursor: pointer;
}
.mask_con_item {
  display: none;
}
.mask_con_item.active {
  display: block;
}
.mask_con_item_con {
  background-color: #ffffff;
  background: url(http://file.pmddw.com/course/m/images/introduce/bg_mask.png) #fff no-repeat center top;
  background-size: 100% auto;
  border-radius: 0.12rem;
  overflow: hidden;
}
.mask_con_item_con_title {
  background-image: linear-gradient(90deg, #00cd78 0%, #00cdae 100%);
  padding: 0.2rem 0;
}
.mask_con_item_con_title p {
  text-align: center;
  font-size: 0.32rem;
  letter-spacing: 0.016rem;
  color: #ffffff;
  line-height: 1.2;
  font-weight: bold;
}
.mask_con_item_con_text {
  margin-top: 15px;
}
.mask_con_item_con_show img {
  display: block;
  margin: 0 auto 10px;
  width: 1.6rem;
}
.mask_login {
  border-radius: 0.12rem;
  width: 7rem;
}
.mask_login_text {
  margin-bottom: 0.2rem;
}
.mask_login_text p {
  font-size: 0.24rem;
  line-height: 0.36rem;
  letter-spacing: 0.012rem;
  color: #333333;
}
.mask_login_con {
  padding: 0.5rem 0.4rem;
}
.mask_login_con form .pmddw_searchBox {
  flex: 1;
}
.mask_login_con form .form_item_row .form_item {
  flex: 0 1 49%;
}
.mask_login_con form .form_item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  margin-bottom: 0.2rem;
  font-size: 0.3rem;
}
.mask_login_con form .form_item.hide {
  display: none;
}
.mask_login_con form .form_item input::placeholder {
  font-size: 0.24rem;
  color: #aaaaaa;
}
.mask_login_con form .form_item input[type="text"] {
  display: block;
  width: 100%;
  height: 0.6rem;
  line-height: 0.58rem;
  flex: 1;
  border: solid 1px #ececec;
  border-radius: 0.012rem;
  padding: 0 0.12rem;
  font-size: 0.26rem;
  color: #333333;
}
.mask_login_con form .form_item input[name="buyStr"] {
  padding-right: 120px;
}
.mask_login_con form .form_item input[type="radio"] {
  margin-left: 25px;
}
.mask_login_con form .form_item input[type="checkbox"] {
  font-size: 14px;
  margin-right: 10px;
}
.mask_login_con form .form_item select {
  flex: 1;
  height: 0.6rem;
  line-height: 0.58rem;
  border: solid 1px #ececec;
  border-radius: 0.012rem;
  font-size: 0.26rem;
  color: #333333;
  padding: 0 0.12rem;
}
.mask_login_con form .form_item select:not(:last-child) {
  margin-right: 0.15rem;
}
.mask_login_con form button {
  width: 100%;
  margin: 0.4rem auto 0;
}
.mask_success_con {
  width: 6rem;
  padding: 0.6rem 0;
}
.mask_success_con p {
  text-align: center;
  line-height: 1.6;
  letter-spacing: 0.015rem;
  color: #333333;
  font-size: 0.32rem;
}
.mask_success_con .text {
  margin-bottom: 0.2rem;
  background: url(http://file.pmddw.com/course/m/images/introduce/icon_mask_true.png) no-repeat center top;
  background-size: 1.4rem;
  padding-top: 1.6rem;
}
.mask_success_con .text p {
  font-size: 0.34rem;
  font-weight: bold;
  line-height: 1.6;
  letter-spacing: 0.02rem;
}