/* background設定 */
header {
  background: url(/img/service/mobile/service_bg.png);
  background-size: 75%;
  background-attachment: local;
  background-repeat: no-repeat;
  width: 100%;
  height: 43vw;
  padding-top: 5rem;
  margin-top: calc(55px + 3vw);
}

aside {
  margin-top: -32%;
  width: 100%;
  height: 150vw;
  background: url(/img/service/mobile/dropdown_bg.png);
  background-size: 100%;
  background-attachment: local;
  background-repeat: no-repeat;
}

h2 {
  font-size: 1.8rem;
}

h3 {
  font-size: 1.4rem;
  font-weight: normal;
  text-shadow: 0 0 1px #000;
}

.main_title {
  width: 85%;
  height: 1.2rem;
  padding-top: 2.4rem;
  padding-left: 0.5rem;
  margin: auto;
  margin-top: -3rem;
  margin-bottom: 7rem;
  border-left: 0.7rem solid black;
}

.main_title small {
  font-size: 1rem;
  margin: 0;
  text-shadow: 0 0 1px #777;
  letter-spacing: 0.1rem;
}

.main_title h1 {
  margin: 0;
  margin-top: 0.3rem;
  font-size: 2.57rem;
  font-weight: normal;
  text-shadow: 0 0 1px black;
  letter-spacing: 0.1rem;
  display: flex;
  justify-content: space-between;
}

[v-cloak] {
  display: none;
}

.side_btn {
  position: absolute;
  font-size: 2.5rem;
  right: 5%;
  top: calc(55px + 20.5vw);
}

.side_menu {
  width: 65%;
  list-style: none;
  margin: 0;
  margin-left: 20%;
  margin-top: 20%;
  padding: 0;
}

.side_menu li {
  padding: 12% 0;
  font-size: 1.2rem;
  letter-spacing: 0.1rem;
  text-shadow: 0 0 1px #666;
  display: block;
  display: flex;
  justify-content: space-between;
  cursor: pointer;
}

.side_menu li::after {
  content: "▼";
}

section {
  width: 100%;
  padding-top: calc(55px + 2%);
  margin-top: calc(-55px - 2%);
}

section div {
  width: 90%;
  margin: auto;
}

section img {
  width: 100%;
  margin: 3% 0;
}

.describe {
  font-size: 1.1rem;
  line-height: 2;
  letter-spacing: 0.1rem;
}

#image_ai {
  background: url(/img/service/mobile/image_ai_bg.png);
  background-size: 100%;
  background-attachment: local;
  background-repeat: no-repeat;
  padding-bottom: 26%;
}

#mobile {
  background: url(/img/service/mobile/mobile_bg.png) 0 100%;
  background-size: 100%;
  background-attachment: local;
  background-repeat: no-repeat;
  padding-bottom: 15%;
}

#application {
  background: url(/img/service/mobile/application_bg.png) 0 100%;
  background-size: 100%;
  background-attachment: local;
  background-repeat: no-repeat;
  padding-bottom: 20%;
}

#control {
  background: url(/img/service/mobile/drone_bg.png) 90% 100%;
  background-size: 23%;
  background-attachment: local;
  background-repeat: no-repeat;
  padding-bottom: 10%;
}

#drone {
  background: url(/img/service/mobile/control_bg.png);
  background-size: 85%;
  background-attachment: local;
  background-repeat: no-repeat;
  padding-bottom: 10%;
}

#cloud {
  background: url(/img/service/mobile/cloud_bg.png);
  background-size: 100%;
  background-attachment: local;
  background-repeat: no-repeat;
  padding-bottom: 49%;
}