.md-tutorial-1.md28441 {
  padding-top: 1.1rem;
  padding-bottom: 1.1rem;
  position: relative;
  background-color: #f5f7fa;
}
.md-tutorial-1.md28441 .layout {
  margin-left: auto;
  margin-right: auto;
  width: 16rem;
  max-width: 92%;
}
.md-tutorial-1.md28441 .box-left {
  width: calc( 340 / 1600 * 100%);
}
.md-tutorial-1.md28441 .box-right {
  width: calc( 1180 / 1600 * 100%);
}
@media screen and (max-width: 900px) {
  .md-tutorial-1.md28441 .box-left {
    width: 100%;
  }
  .md-tutorial-1.md28441 .box-right {
    width: 100%;
    margin-top: 0.4rem;
  }
}
.md-tutorial-1.md28441 .form {
  background-color: #fff;
  border-radius: 0.24rem;
  padding: 0.25rem 0.6rem;
}
.md-tutorial-1.md28441 .form .inp {
  position: relative;
}
.md-tutorial-1.md28441 .form .ip {
  width: 100%;
  height: calc( 56em / 16);
  border: none;
  border-bottom: 1px solid #dbdbdb;
}
.md-tutorial-1.md28441 .form .submit {
  width: 1em;
  height: 1em;
  border: none;
  background-color: #fff;
  color: var(--active);
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  padding: 0;
  cursor: pointer;
}
.md-tutorial-1.md28441 .form .submit svg {
  width: 1em;
  height: 1em;
}
@media screen and (max-width: 900px) {
  .md-tutorial-1.md28441 .form {
    padding: 0.2rem;
  }
}
.md-tutorial-1.md28441 .ul {
  margin-top: 0.3rem;
  margin-bottom: 0.5rem;
}
.md-tutorial-1.md28441 .ul .li {
  width: calc(376 / 1180 * 100%);
  margin-right: calc(26 / 1180 * 100%);
}
.md-tutorial-1.md28441 .ul .li:nth-child(3n) {
  margin-right: 0;
}
.md-tutorial-1.md28441 .ul .li {
  margin-bottom: 0.25rem;
}
.md-tutorial-1.md28441 .ul .dd {
  cursor: pointer;
}
.md-tutorial-1.md28441 .ul .dd:hover .img {
  transform: scale(1.1);
}
.md-tutorial-1.md28441 .ul .dd:hover .title {
  color: var(--active);
}
.md-tutorial-1.md28441 .ul .top {
  position: relative;
}
.md-tutorial-1.md28441 .ul .c-pic {
  border-radius: 0.24rem;
}
.md-tutorial-1.md28441 .ul .img {
  padding-top: calc( 211 / 376 * 100%);
}
.md-tutorial-1.md28441 .ul .watch {
  width: 1em;
  height: 1em;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
  color: var(--active);
  background-color: #fff;
  box-shadow: 0 0 0 0.07rem rgba(255, 255, 255, 0.3);
}
.md-tutorial-1.md28441 .ul .watch svg {
  width: calc( 20 / 56 * 100%);
  height: calc( 20 / 56 * 100%);
}
.md-tutorial-1.md28441 .ul .text {
  margin-top: 0.2rem;
}
.md-tutorial-1.md28441 .ul .title {
  transition: 0.5s;
}
.svc-nav .n-ul {
  border-top: 1px solid #dbdbdb;
  margin-top: 0.36rem;
}
.svc-nav .n-li {
  padding: 0.38rem 0;
  border-bottom: 1px solid #dbdbdb;
}
.svc-nav .n-li.on .dt {
  color: var(--active);
}
.svc-nav .n-li.on .nic {
  transform: rotate(180deg);
}
.svc-nav .dt {
  position: relative;
  cursor: pointer;
  padding-right: 0.3rem;
}
.svc-nav .nic {
  width: 1em;
  height: 0.5em;
  position: absolute;
  right: 0;
  top: calc(50% - 0.25em);
  display: flex;
  transition: 0.5s;
}
.svc-nav .nic svg {
  width: 100%;
  height: 100%;
}
.svc-nav .bd {
  display: none;
}
.svc-nav .n-ul2 {
  margin-top: 0.25rem;
}
.svc-nav .n-li2 {
  font-size: 0;
  margin-bottom: 0.2rem;
}
.svc-nav .n-li2:last-child {
  margin-bottom: 0;
}
.svc-nav .na2 {
  display: inline-block;
  color: #666;
}
.svc-nav .na2.on {
  color: var(--active);
  text-decoration: underline;
  text-underline-offset: 4px;
}