.overview{
  background-color: #f3f3f3;
  background-image: url("/-/Media/Ricoh/Sites/co_jp/service/security-monitoring/img/mv.jpg");
  background-position: 50% center;
  background-repeat: no-repeat;
  background-size: cover;
  }
  @media only screen and (min-width: 1366px) {
  .overview{
  background-size: 1366px auto; } }
  
  
  .overview .overview_text_layer {
  max-width: 1024px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  box-sizing: border-box;
  min-height: auto;
  height: 500px;
  display: flex;
  align-items: center;
  padding: 0 10px; }
  .overview .mark {
  display: block;
  width: 80px; }
  .overview .text_group {
  margin-left: 0px;
  margin-bottom: 150px; }
  .overview .subtitle {
  font-size: 1.45rem;
  font-weight: bold;
  line-height: 1.15;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale; }
  .overview .title {
  font-size: 40px;
  font-weight: bold;
  margin-top: 0.1em;
  font-feature-settings: "palt";
  }
  
  @media (max-width: 640px){
  .overview .overview_text_layer {
  height: auto;
  padding: 30px 5% 20px; }
  .overview .mark {
  width: 32px;
  top: 6%;
  left: 6%; }
  .overview .mark img{
  max-width: 100%;
  }
  .overview .text_group {
  margin-top: 0px;
  margin-left: 0px;
  margin-bottom: 70px;}
  .overview .subtitle {
  font-size: 2.5vw; }
  .overview .title {
  margin: 10px 0 0 0;
  font-size: 4.2vw; }
  }
  
  .cp-Heading1{display: none;}