.mv {
  background-image: url(../img/office_mv.jpg);
}
@media screen and (max-width: 768px) {
  .mv {
    background-position: top right 55%;
  }
}

ul.nav {
  display: flex;
  justify-content: center;
}
ul.nav li {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 20px;
  margin: 5px 0 18px;
  padding: 0 3.5%;
}
ul.nav li:not(:nth-last-of-type(1)) {
  border-right: 1px solid #bdbdbd;
}
ul.nav li.act {
  position: relative;
}
ul.nav li.act::after {
  content: "";
  width: 110px;
  height: 13px;
  background: url(../img/ttl_act.gif) no-repeat center bottom/cover;
  position: absolute;
  bottom: -18px;
  left: 50%;
  transform: translateX(-50%);
}
ul.nav li a, ul.nav li span {
  font-size: 18px;
  line-height: 1;
}
ul.nav li a {
  transition: all 0.3s;
}
ul.nav li a:hover {
  color: #e72a48;
}

h2 {
  margin-bottom: 55px;
  padding-top: 55px;
  background: url(../img/top_frame.gif) no-repeat center top/contain;
}
@media screen and (max-width: 768px) {
  h2 {
    margin-bottom: 24px;
    padding-top: 0;
    background: none;
  }
}

ul.anch {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
@media screen and (max-width: 768px) {
  ul.anch {
    justify-content: space-between;
    margin-bottom: 18px;
    padding: 0 5%;
  }
}
ul.anch li {
  max-width: 145px;
  width: 45%;
  margin: 0 5px 10px;
}
@media screen and (max-width: 768px) {
  ul.anch li {
    margin: 0 5px 8px;
  }
}
ul.anch li a {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 45px;
  border: 1px solid #75b827;
  border-radius: 25px;
  color: #75b827;
}
ul.anch li a::after {
  content: "";
  width: 6px;
  height: 6px;
  margin-left: 5px;
  border-right: 2px solid #75b827;
  border-bottom: 2px solid #75b827;
  transform: rotate(45deg) translateY(-35%);
}

section {
  margin-bottom: 55px;
}
section .inner {
  max-width: 850px;
  padding: 5%;
  border-radius: 10px;
  background: #dfeca8 url(../img/office_inner_bg.gif) no-repeat left top/contain;
}
@media screen and (max-width: 768px) {
  section .inner {
    background-size: auto 220px;
  }
}
section .inner .address {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  max-width: 670px;
  width: 80%;
  margin: 0 auto 35px;
}
@media screen and (max-width: 768px) {
  section .inner .address {
    width: 100%;
    margin: 0 auto 24px;
  }
}
section .inner .address .txt {
  max-width: 240px;
  width: 36%;
}
@media screen and (max-width: 768px) {
  section .inner .address .txt {
    max-width: 100%;
    width: 100%;
    margin-bottom: 12px;
  }
}
section .inner .address .txt h3 {
  display: flex;
  align-items: center;
  min-height: 65px;
  margin-bottom: 15px;
  padding: 10px 0 5px;
  background: url(../img/office_ttl_dot.gif) repeat-x left bottom;
  line-height: 1;
  color: #75b827;
  font-size: 30px;
}
@media screen and (max-width: 768px) {
  section .inner .address .txt h3 {
    min-height: 0;
    padding: 15px 0 15px 70px;
    font-size: 20px;
  }
}
section .inner .address .txt p {
  line-height: 1.8;
}
@media screen and (max-width: 768px) {
  section .inner .address .txt p {
    line-height: 1.6;
  }
}
section .inner .address .pic {
  max-width: 370px;
  width: 56%;
  padding: 5px;
  border-radius: 10px;
  background-color: #fff;
}
@media screen and (max-width: 768px) {
  section .inner .address .pic {
    max-width: 100%;
    width: 100%;
  }
}
section .inner .address .pic img {
  border-radius: 10px;
}
section .inner .map {
  padding-top: 5%;
}
section .inner .map iframe {
  display: block;
  width: 100%;
  height: 320px;
}
@media screen and (max-width: 768px) {
  section .inner .map iframe {
    height: 220px;
  }
}