@charset "UTF-8";
body {
  font-family: "Oswald", "Noto Sans JP", sans-serif;
  color: #333;
  letter-spacing: 0.05em;
}
body.is-fixed {
  overflow: hidden;
}

.button {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  padding: 6px 10px 6px 30px;
  width: 160px;
  margin: 0 auto;
}
.button_bg {
  background-color: #fff;
}
.button_bg .button_text {
  color: #4a4a4a;
}
.button_bd {
  border: 1px solid #fff;
}
.button_bd .button_text {
  color: #fff;
}
.button_icon {
  width: 24px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}
.button_icon-path {
  fill: #fff;
}
.button_icon-path--contact {
  fill: #4a4a4a;
}
.button_text {
  margin-left: 10px;
  font-size: 16px;
  letter-spacing: 0.08em;
  color: #fff;
  width: 84px;
}

.header {
  background-color: #4a4a4a;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 99;
}
.header_container {
  position: relative;
}
.header_logo {
  display: inline-block;
  padding: 14px 24px;
  font-size: 20px;
  color: #fff;
}
.header_menu_button {
  border: none;
  position: absolute;
  top: 24px;
  right: 24px;
  width: 30px;
  height: 36px;
  overflow: hidden;
  color: transparent;
  background: url(../img/bg_menu.png) center center no-repeat;
  background-size: 100% auto;
}
.header_menu_button.is-checked {
  background: url(../img/bg_menu-close.png) center center no-repeat;
  background-size: 100% auto;
}
.header_contents {
  display: none;
  height: calc(100vh - 86px);
  border-top: 1px solid #fff;
  padding-top: 60px;
}
.header_nav_item + .header_nav_item {
  margin-top: 24px;
}

.fv {
  position: relative;
}
.fv_contents {
  position: absolute;
  left: 0;
  bottom: 26px;
  width: 100%;
  height: 209px;
  background: url(../img/sp/bg_fv.png) center center no-repeat;
  background-size: 100% auto;
  padding: 18px;
}
.fv_heading_main {
  display: block;
  font-size: 36px;
  letter-spacing: 0.01em;
}
.fv_heading_sub {
  display: block;
  font-size: 12px;
  margin-top: 12px;
  letter-spacing: 0.001em;
}

.section {
  padding: 48px 0;
}
.section_inner {
  padding: 0 32px;
}
.section_head {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  margin-bottom: 32px;
}
.section_head_main {
  font-size: 36px;
  letter-spacing: 0.01em;
}
.section_head_sub {
  font-size: 12px;
}
.section_lead_text {
  font-size: 16px;
  line-height: 1.6;
}
.section_contents {
  margin-top: 10px;
}

.service_item + .service_item {
  margin-top: 40px;
}
.service_item_img {
  text-align: center;
  margin-bottom: 10px;
}
.service_item_name {
  font-size: 14px;
  font-weight: bold;
  line-height: 1.6;
  text-align: center;
  margin-bottom: 10px;
}
.service_item_text {
  font-size: 14px;
  line-height: 1.6;
}

.works {
  background-color: #fafafa;
}
.works_item + .works_item {
  margin-top: 40px;
}
.works_item_img {
  margin-bottom: 12px;
  -webkit-box-shadow: 0 4px 15px 0 rgba(0, 0, 0, 0.15);
          box-shadow: 0 4px 15px 0 rgba(0, 0, 0, 0.15);
  margin: 16px 24px;
}
.works_item_name {
  font-size: 14px;
  font-weight: bold;
  line-height: 1.6;
  margin-bottom: 10px;
  margin: 0px 24px;
}
.works_item_link {
  font-size: 14px;
  text-decoration: underline;
  margin: 16px 24px;
}

.about_img {
  margin-bottom: 10px;
}
.about_img img {
  -webkit-box-shadow: 0 4px 15px 0 rgba(0, 0, 0, 0.15);
          box-shadow: 0 4px 15px 0 rgba(0, 0, 0, 0.15);
}
.about_text {
  font-size: 14px;
  line-height: 1.6;
}
.about_text + .about_text {
  margin-top: 1em;
}

.flow {
  background-color: #fafafa;
}
.flow_list {
  margin-top: 64px;
}
.flow_item {
  position: relative;
  border: 1px solid #333;
  padding: 46px 16px 24px;
}
.flow_item + .flow_item {
  margin-top: 46px;
}
.flow_item_num {
  position: absolute;
  top: -24px;
  left: 50%;
  -webkit-transform: translateX(-50%);
          transform: translateX(-50%);
  color: #fff;
  font-size: 24px;
  background-color: #4a4a4a;
  width: 48px;
  height: 48px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
}
.flow_item_img {
  margin-top: 24px;
  margin-bottom: 24px;
  text-align: center;
}
.flow_item_name {
  font-size: 14px;
  font-weight: bold;
  line-height: 1.6;
  margin-bottom: 10px;
  margin: 0px 24px;
  text-align: center;
}
.flow_item_text {
  font-size: 14px;
  line-height: 1.6;
}

.message_img {
  margin-bottom: 10px;
}
.message_img img {
  -webkit-box-shadow: 0 4px 15px 0 rgba(0, 0, 0, 0.15);
          box-shadow: 0 4px 15px 0 rgba(0, 0, 0, 0.15);
}
.message_text {
  font-size: 14px;
  line-height: 1.6;
}

.page_bottom_item {
  padding: 40px;
}
.page_bottom_head {
  color: #fff;
  text-align: center;
}
.page_bottom_item_contact {
  background-color: #6f6f6f;
}
.page_bottom_item_twitter {
  background-color: #4a4a4a;
}
.footer_copy {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 10px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  padding: 10px;
}

@media screen and (min-width: 768px) {
  .wrapper {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
  }
  .header {
    position: relative;
    -ms-flex-preferred-size: 20.8%;
        flex-basis: 20.8%;
    padding: 50px 20px;
  }
  .header_container {
    margin: 0 auto;
    width: 160px;
    position: sticky;
    top: 50px;
  }
  .header_logo {
    font-size: 30px;
    letter-spacing: 0.12em;
    line-height: 1;
  }
  .header_menu_button {
    display: none;
  }
  .header_contents {
    display: block;
    border: none;
  }
  .button {
    -webkit-transition: background 0.3s, color 0.3s, opacity 0.3s;
    transition: background 0.3s, color 0.3s, opacity 0.3s;
  }
  .button:hover {
    background-color: #fff;
  }
  .button:hover .button_icon-path {
    fill: #4a4a4a;
  }
  .button:hover .button_text {
    color: #4a4a4a;
  }
  .button_bg:hover {
    opacity: 0.7;
  }
  .main {
    -ms-flex-preferred-size: 79.2%;
        flex-basis: 79.2%;
  }
  .section_inner {
    max-width: 944px;
    margin: 0 auto;
  }
  .section_head {
    margin-bottom: 24px;
  }
  .section_head_main {
    font-size: 64px;
    letter-spacing: 0.12em;
  }
  .fv_contents {
    background: url(../img/bg_fv.png) center center no-repeat;
    background-size: 100% auto;
    left: 0;
    bottom: 100px;
    max-width: 627px;
    height: 174px;
    padding-top: 24px;
    padding-left: 48px;
  }
  .fv_heading {
    padding-left: 60px;
  }
  .fv_heading_main {
    letter-spacing: 0.12em;
  }
  .fv_heading_sub {
    font-size: 16px;
  }
  .service_list {
    display: grid;
    grid-template-columns: repeat(3, 1fr); /* 3列に設定 */
    gap: 8%;
  }
  .service_item {
    margin-top: 40px;
  }
  .works_list {
    display: grid;
    grid-template-columns: repeat(3, 1fr); /* 3列に設定 */
    gap: 8%;
  }
  .works_item {
    margin-top: 40px;
  }
  .about_container {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: horizontal;
    -webkit-box-direction: reverse;
        -ms-flex-direction: row-reverse;
            flex-direction: row-reverse;
    gap: 40px;
  }
  .flow_list {
    display: grid;
    grid-template-columns: repeat(4, 1fr); /* 3列に設定 */
    gap: 16px;
  }
  .flow_item {
    margin-top: 40px;
    width: 100%;
  }
  .flow_item + .flow_item {
    margin-top: 40px;
  }
  .message_container {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: horizontal;
    -webkit-box-direction: reverse;
        -ms-flex-direction: row-reverse;
            flex-direction: row-reverse;
    gap: 40px;
  }
  .page_bottom {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
  }
  .page_bottom_item {
    -webkit-box-flex: 1;
        -ms-flex: 1;
            flex: 1;
    padding: 64px 10px;
  }
  .footer {
    padding: 8px;
  }
  .footer_copy {
    font-size: 14px;
  }
}
@media screen and (min-width: 768px) and (max-width: 1024px) {
  .section_head_main {
    font-size: 54px;
  }
  .flow_list {
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* 2列に設定 */
    gap: 16px;
  }
  .fv_contents {
    bottom: 50%;
    -webkit-transform: translateY(50%);
            transform: translateY(50%);
  }
}