.eitor .banner {
  width: 100%;
  height: 365px;
  background: url('../../img/eitor/banner-bg.png') no-repeat center;
  background-size: cover;
}
.eitor main {
  margin-top: 60px;
  justify-content: space-between;
  align-items: flex-start;
}
.eitor main .user-info {
  box-sizing: border-box;
  flex: 28% 0;
  background: #F9F9FB;
  border-radius: 8px;
  padding: 40px 30px 20px;
}
.eitor main .user-info .avatar {
  width: 106px;
  height: 106px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: 20px;
}
.eitor main .user-info .username {
  font: bold 20px/24px 'Rubik';
  color: #131313;
}
.eitor main .user-info .job-title {
  font: lighter 16px/19px 'Rubik';
  color: #131313;
  margin-top: 10px;
}
.eitor main .user-info .contact-user {
  margin: 20px 0;
  align-items: center;
}
.eitor main .user-info .contact-user span {
  margin-right: 20px;
}
.eitor main .user-info .contact-user .facebook {
  display: block;
  width: 27px;
  height: 27px;
  background: url('../../img/eitor/icon-facebook-hover.png') no-repeat;
  background-size: cover;
}
.eitor main .user-info .contact-user .facebook:hover {
  background: url('../../img/eitor/icon-facebook.png') no-repeat;
  background-size: cover;
}
.eitor main .user-info .contact-user .twitter {
  display: block;
  width: 31px;
  height: 25px;
  background: url('../../img/eitor/icon-twitter.png') no-repeat;
  background-size: cover;
}
.eitor main .user-info .contact-user .twitter:hover {
  background: url('../../img/eitor/icon-twitter-hover.png') no-repeat;
  background-size: cover;
}
.eitor main .user-info .contact-user .mail {
  display: block;
  width: 31px;
  height: 25px;
  background: url('../../img/eitor/icon-mail.png') no-repeat;
  background-size: cover;
}
.eitor main .user-info .contact-user .mail:hover {
  background: url('../../img/eitor/icon-mail-hover.png') no-repeat;
  background-size: cover;
}
.eitor main .user-info .intro {
  margin-top: 30px;
}
.eitor main .user-info .intro li {
  display: flex;
  font: lighter 14px/28px 'Rubik';
  color: #212A33;
  margin: 10px 0;
}
.eitor main .user-info .intro li::before {
  content: '·';
  display: block;
  margin-right: 10px;
}
.eitor main article {
  flex: 68% 0;
}
.eitor main article section {
  margin-bottom: 40px;
}
.eitor main article section .title {
  font: bold 32px/38px 'Rubik';
  color: #131313;
  padding-bottom: 40px;
  margin-bottom: 40px;
  border-bottom: 1px solid #F1F1F1;
}
.eitor main article section .class-title {
  font: bold 20px/24px 'Rubik';
  color: #131313;
  margin: 20px 0;
}
.eitor main article section p {
  font: lighter 16px/32px 'Rubik';
  color: #212A33;
  margin: 5px 0;
}
.eitor main article section .expertise {
  justify-content: space-between;
}
.eitor main article section .expertise .item {
  flex: 30% 0;
}
.eitor main article section .expertise .item img {
  width: 100%;
  border-radius: 10px;
}
.eitor main article section .expertise .item p {
  font: normal 16px/19px 'Rubik';
  text-align: center;
  color: #131313;
  margin-top: 15px;
}
.eitor main article section .expertise .item p a:hover {
  text-decoration: underline;
}
@media screen and (max-width: 770px) {
  .eitor .banner {
    height: 376rem;
    background: url('../../img/eitor/banner-mobile-bg.png') no-repeat center;
    background-size: cover;
  }
  .eitor main {
    margin-top: 40rem;
    flex-direction: column;
  }
  .eitor main .user-info {
    flex: 1 0;
    border-radius: 8rem;
    padding: 20rem;
  }
  .eitor main .user-info .avatar {
    width: 106rem;
    height: 106rem;
    margin-bottom: 20rem;
  }
  .eitor main .user-info .username {
    font: bold 16rem/19rem 'Rubik';
  }
  .eitor main .user-info .job-title {
    font: lighter 16rem/17rem 'Rubik';
    margin-top: 10rem;
  }
  .eitor main .user-info .contact-user {
    margin: 20rem 0;
  }
  .eitor main .user-info .contact-user span {
    margin-right: 30rem;
  }
  .eitor main .user-info .contact-user .facebook {
    width: 27rem;
    height: 27rem;
  }
  .eitor main .user-info .contact-user .twitter {
    width: 31rem;
    height: 25rem;
  }
  .eitor main .user-info .contact-user .mail {
    width: 31rem;
    height: 25rem;
  }
  .eitor main .user-info .intro {
    margin-top: 30rem;
  }
  .eitor main .user-info .intro li {
    font: lighter 12rem/24rem 'Rubik';
    margin: 10rem 0;
  }
  .eitor main .user-info .intro li::before {
    margin-right: 10rem;
  }
  .eitor main article {
    flex: 1 0;
    margin-top: 60rem;
  }
  .eitor main article section {
    margin-bottom: 40rem;
  }
  .eitor main article section .title {
    font: bold 32rem/38rem 'Rubik';
    padding-bottom: 20rem;
    margin-bottom: 20rem;
    border-bottom: 1rem solid #F1F1F1;
  }
  .eitor main article section .class-title {
    font: bold 16rem/19rem 'Rubik';
    margin: 20rem 0;
  }
  .eitor main article section p {
    font: lighter 14rem/28rem 'Rubik';
    margin: 5rem 0;
  }
  .eitor main article section .expertise {
    flex-flow: row wrap;
    justify-content: space-between;
  }
  .eitor main article section .expertise .item {
    flex: 47% 0;
    margin-bottom: 20px;
  }
  .eitor main article section .expertise .item img {
    width: 100%;
    height: auto;
    border-radius: 10px;
  }
  .eitor main article section .expertise .item p {
    font: normal 16px/19px 'Rubik';
    text-align: center;
    color: #131313;
    margin-top: 15px;
  }
}