body {
  font-family: "Roboto", "Noto Sans JP", sans-serif;
  color: #333;
}

.main {
  margin-top: 76px;
}

.button {
  padding: 6px 16px;
  margin: 0 auto;
}
.button__icon {
  width: 24px;
  display: flex;
  align-items: center;
}
.button__text {
  margin-left: 10px;
  font-size: 16px;
  letter-spacing: 0.08em;
}

.header {
  background-color: #fff;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 999;
  color: #4a4a4a;
  box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.16);
}
.header__container {
  width: 100%;
  position: relative;
}
.header__logo {
  display: inline-block;
  padding: 14px;
  font-size: 20px;
}
.header__contents {
  display: none;
}
.header__nav-item + .header__nav-item {
  margin-top: 24px;
}

.drawer {
  display: block;
}
.drawer__contents {
  width: 100%;
  height: 100%;
  border-top: 1px solid #fff;
  padding-top: 60px;
  background: #fff;
  position: fixed;
  top: 75px;
  right: 0;
  z-index: 50;
  transform: translateX(100%);
  transition: transform 0.3s linear;
}
.drawer__contents.is-checked {
  transform: translateX(0);
}
.drawer__nav-item {
  text-align: center;
}
.drawer__nav-item + .drawer__nav-item {
  margin-top: 24px;
}
.drawer__button {
  border: none;
  position: absolute;
  top: 24px;
  right: 24px;
  width: 30px;
  height: 36px;
  overflow: hidden;
  color: transparent;
  background: url(../img/sp/menu-icon.png) center center no-repeat;
  background-size: 100% auto;
}
.drawer__button.is-checked {
  background: url(../img/sp/close-icon.png) center center no-repeat;
  background-size: 100% auto;
}

.fv {
  position: relative;
}
.fv__img {
  width: 100%;
  height: auto;
  aspect-ratio: 1980/1280;
  background: url(../img/sp/fv_sp.jpg) center center/cover;
}
.fv__contents {
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  width: 100%;
  height: auto;
  padding: 32px;
  color: #fff;
  background-color: rgba(0, 0, 0, 0.3);
}
.fv__heading-main {
  display: block;
  font-size: 36px;
  letter-spacing: 0.1em;
}
.fv__heading-sub {
  margin-top: 12px;
  display: block;
  font-size: 14px;
}

.section {
  padding: 88px 0;
}
.section__inner {
  padding: 0 20px;
}
.section__head {
  display: flex;
  flex-direction: column;
  margin-bottom: 32px;
}
.section__head--center {
  text-align: center;
}
.section__head-main {
  font-size: 40px;
  letter-spacing: 0.1em;
}
.section__head-sub {
  font-size: 11px;
}
.section__lead-text {
  font-size: 16px;
  line-height: 1.6;
}
.section__contents {
  margin-top: 40px;
}

.service__item + .service__item {
  margin-top: 40px;
}
.service__item-img {
  text-align: center;
  margin-bottom: 14px;
  height: 69px;
}
.service__item-name {
  font-size: 14px;
  font-weight: bold;
  text-align: center;
  margin-bottom: 10px;
}
.service__item-text {
  font-size: 14px;
  line-height: 1.6;
}

.works {
  background-color: #F1F8F6;
}
.works__item {
  text-align: center;
}
.works__item + .works__item {
  margin-top: 40px;
}
.works__item-img {
  margin-bottom: 12px;
  text-align: center;
}
.works__item-img img {
  box-shadow: 0px 4px 15px rgba(0, 0, 0, 0.15);
}
.works__item-name {
  font-size: 16px;
  font-weight: bold;
  margin-bottom: 6px;
}

.about__img {
  margin-bottom: 32px;
}
.about__img img {
  width: 100%;
  box-shadow: 0px 4px 15px rgba(0, 0, 0, 0.15);
}
.about__text {
  font-size: 16px;
  line-height: 1.6;
}
.about__text + .about__text {
  margin-top: 16px;
}

.flow {
  background-color: #F1F8F6;
}
.flow__list {
  margin-top: 48px;
}
.flow__item {
  position: relative;
  border: 1px solid #808080;
  padding: 46px 16px 24px;
}
.flow__item + .flow__item {
  margin-top: 46px;
}
.flow__item-num {
  position: absolute;
  top: -24px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 24px;
  background-color: #4a4a4a;
  color: #fff;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.flow__item-img {
  margin-bottom: 24px;
  text-align: center;
}
.flow__item-name {
  font-size: 16px;
  font-weight: bold;
  text-align: center;
  margin-bottom: 10px;
}
.flow__item-text {
  font-size: 14px;
  line-height: 1.6;
}

.message__img {
  margin-bottom: 32px;
}
.message__img img {
  width: 100%;
  box-shadow: 0px 4px 15px rgba(0, 0, 0, 0.15);
}
.message__text {
  font-size: 16px;
  line-height: 1.6;
}

.contact {
  background-color: #F1F8F6;
}
.contact__form {
  display: block;
  max-width: 800px;
  margin: 0 auto;
}

.contact-form__del {
  margin-top: 32px;
}
.contact-form__row {
  display: block;
}
.contact-form__row + .contact-form__row {
  margin-top: 30px;
}
.contact-form__label {
  width: 100%;
}
.contact-form__label label.is-required {
  display: inline-block;
}
.contact-form__inline {
  font-size: 12px;
  color: #e7728e;
  vertical-align: super;
  line-height: 1;
}
.contact-form__input {
  width: 100%;
  margin-top: 5px;
}
.contact-form__input [type=text] {
  border: none;
  box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.16);
  background: #fff;
  padding: 16px 20px;
  -webkit-appearance: none;
     -moz-appearance: none;
          appearance: none;
  border-radius: 23px;
  color: inherit;
  font-family: inherit;
  font-size: 14px;
  width: 100%;
}
.contact-form__input [type=email] {
  border: none;
  box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.16);
  background: #fff;
  padding: 16px 20px;
  -webkit-appearance: none;
     -moz-appearance: none;
          appearance: none;
  border-radius: 23px;
  color: inherit;
  font-family: inherit;
  font-size: 14px;
  width: 100%;
}
.contact-form__input select {
  border: none;
  box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.16);
  background: #fff;
  padding: 16px 20px;
  -webkit-appearance: none;
     -moz-appearance: none;
          appearance: none;
  border-radius: 23px;
  color: inherit;
  font-family: inherit;
  font-size: 14px;
  width: 100%;
}
.contact-form__input select:invalid {
  color: #757575;
}
.contact-form__input textarea {
  height: 150px;
  border: none;
  box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.16);
  background: #fff;
  padding: 16px;
  -webkit-appearance: none;
     -moz-appearance: none;
          appearance: none;
  border-radius: 23px;
  color: inherit;
  font-family: inherit;
  font-size: 14px;
  width: 100%;
  resize: none;
}
.contact-form__message {
  display: none;
}

.contact-form__button {
  margin-top: 30px;
  text-align: center;
}
.contact-form__button [type=submit] {
  background-color: #4a4a4a;
  width: 100%;
  max-width: 300px;
  display: inline-block;
  font-weight: bold;
  color: #fff;
  padding: 12px 20px;
  border-radius: 8px;
  box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.16);
  -webkit-appearance: none;
     -moz-appearance: none;
          appearance: none;
  font-family: inherit;
  font-size: inherit;
  border: none;
  opacity: 0.6;
}
.contact-form__button [type=submit].-active {
  opacity: 1;
}

.footer {
  text-align: center;
  padding: 10px;
}
.footer__copy {
  font-size: 11px;
  font-family: "Noto Sans JP", sans-serif;
}

/* ===============================================
# // pc
=============================================== */
@media screen and (min-width: 768px) {
  .main {
    flex-basis: 79.2%;
    margin-top: 118px;
  }
  .header {
    position: fixed;
    padding: 15px 0;
    background-color: #fff;
  }
  .header__container {
    padding: 0 15px;
    max-width: 1140px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .header__logo {
    font-size: 30px;
    letter-spacing: 0.12em;
    line-height: 1;
  }
  .header__nav-list {
    display: flex;
    justify-content: flex-end;
  }
  .header__nav-item + .header__nav-item {
    margin-top: 0px;
  }
  .header__menu-button {
    display: none;
  }
  .header__contents {
    display: block;
    border: none;
  }
  .drawer {
    display: none;
  }
  .drawer__button {
    display: none;
  }
  .button {
    transition: opacity 0.3s;
  }
  .button:hover {
    opacity: 0.7;
  }
  .section {
    padding: 169px 0;
  }
  .section__inner {
    padding: 0 30px;
    max-width: 1140px;
    margin: 0 auto;
  }
  .section__head {
    margin-bottom: 24px;
  }
  .section__head-main {
    font-size: 60px;
  }
  .fv__img {
    width: 100%;
    height: auto;
    aspect-ratio: 1280/600;
    background: url(../img/fv.jpg) center center/cover;
  }
  .fv__contents {
    max-width: 650px;
    padding-top: 24px;
    padding-left: 96px;
    padding: 24px 20px 32px 96px;
  }
  .fv__heading-main {
    font-size: 48px;
  }
  .fv__heading-sub {
    font-size: 20px;
  }
  .service__list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8%;
  }
  .service__item + .service__item {
    margin-top: 0;
  }
  .works__list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8%;
  }
  .works__item + .works__item {
    margin-top: 0;
  }
  .works__item-link {
    display: inline-block;
  }
  .works__item-link:hover > .works__item-img img {
    box-shadow: 0 3px 6px 0 rgba(0, 0, 0, 0.25);
    transform: translate(-0.15em, -0.15em);
  }
  .works__item-img img {
    border-radius: 5px;
    transition: all 0.6s ease 0s;
  }
  .about__container {
    display: flex;
    flex-direction: row-reverse;
    gap: 40px;
  }
  .flow__list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }
  .flow__item + .flow__item {
    margin-top: 0;
  }
  .message__container {
    display: flex;
    flex-direction: row-reverse;
    gap: 40px;
  }
  .page-bottom {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }
  .page-bottom__item {
    padding: 54px 10px;
  }
  .contact-form {
    margin: 80px auto;
    max-width: 600px;
  }
  .contact-form__row {
    display: flex;
    align-items: center;
  }
  .contact-form__row + .contact-form__row {
    margin-top: 60px;
  }
  .contact-form__label {
    width: 33%;
  }
  .contact-form__input {
    width: 66%;
  }
}
/* ===============================================
# tab
=============================================== */
@media screen and (min-width: 768px) and (max-width: 1024px) {
  .section__head-main {
    font-size: 43px;
  }
  .fv__img {
    aspect-ratio: 1280/600;
    background: url(../img/fv.jpg) center center/cover;
  }
  .flow__list {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 16px;
  }
  .about__container {
    align-items: center;
  }
  .message__container {
    align-items: center;
  }
}
.fadein {
  opacity: 0;
  transform: translate(0, 0);
  transition: all 1.5s;
}
.fadein.fadein-left {
  transform: translate(-30px, 0);
}
.fadein.fadein-right {
  transform: translate(30px, 0);
}
.fadein.fadein-up {
  transform: translate(0, -30px);
}
.fadein.fadein-bottom {
  transform: translate(0, 30px);
}
.fadein.scrollin {
  opacity: 1 !important;
  transform: translate(0, 0) !important;
}