html,
body {
  background: #fff!important;
}

body.news.fix {
  .back {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
  }

  .news-inner {
    margin-top: 100px;
    @media (width < 800px) {
      margin-top: 60px;
    }
  }
}

.news-head {
  background: #c3d5e0;
  height: calc(10vw + 57px * 2);
  @media (width < 800px) {
    height: calc(10vw + 30px*2);
  }
  .logo {
    position: absolute;
    top: 57px;
    left: 4%;
    width: 92%;
    @media (width < 800px) {
      top: 30px;
    }
    @media (width <= 500px) {
      padding: 0 20px;
    }
  }
}

.back {
  margin: 0 auto;
  background: #fff;
  height: 100px;
  display: flex;
  align-items: center;
  padding-left: 4%;
  @media (width < 800px) {
    height: 60px;
  }
  @media (width <= 500px) {
    padding-left: 20px;
  }

  a {
    width: 250px;
    height: 20px;
    background-image: url(../image/back-link.png);
    background-repeat: no-repeat;
    display: block;
    background-size: 250px 20px;
    @media (width < 800px) {
      width: 200px;
      height: 16px;
      background-size: 200px 16px;
    }

    @media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
      background-image: url(../image/back-link@2x.png);
      background-size: 250px 20px;
      @media (width < 800px) {
        background-size: 200px 16px;
      }
    }

    &.back-news {
      width: 175px;
      height: 20px;
      background-image: url(../image/back-news.png);
      background-repeat: no-repeat;
      display: block;
      background-size: 175px 20px;

      @media (width < 800px) {
        width: 140px;
        height: 16px;
        background-size: 140px 16px;
      }
      @media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
        background-image: url(../image/back-news@2x.png);
        background-size: 175px 20px;
        @media (width < 800px) {
          background-size: 140px 16px;
        }
      }
    }

    span {
      display: none;
    }
  }
}

.news-inner {
  background: #f5f5f5;
  padding-bottom: 200px;
  @media (width < 800px) {
    padding-bottom: 10px;
  }
  > h1 {
    font-size: 24px;
    padding: 40px 0;
    @media (width < 800px) {
      padding: 20px 0;
      font-size: 16px;
    }
  }

  .post {
    width: 852px;
    background: #fff;
    margin: 0 auto;
    padding: 65px;
    margin-bottom: 65px;
    @media (width < 800px) {
      padding: 20px;
      margin-bottom: 20px;
      width: 90%;
    }
    > h2 {
      font-size: 25px;
      margin-bottom: 55px;
      @media (width < 800px) {
        font-size: 16px;
        margin-bottom: 10px;
      }
    }

    p {
      font-size: 15px;
      margin-bottom: 0px;
      @media (width < 800px) {
        font-size: 12px;
        line-height: 1.8em;
      }
    }

    img {
      max-width: 100%;
      height: auto;
      margin: 40px 0;
    }

    .date {
      margin-top: 20px;
      display: inline-block;
      font-size: 14px;
      @media (width < 800px) {
        font-size: 10px;
      }
    }
  }
}