html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: "Noto Sans JP", sans-serif;
  color: #333;
  line-height: 1.7;
}
body.is-fixed {
  overflow: hidden;
}

img {
  width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

.hidden-sp {
  display: none;
}
@media screen and (min-width: 768px) {
  .hidden-sp {
    display: inline;
  }
}

@media screen and (min-width: 768px) {
  .hidden-pc {
    display: none;
  }
}

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  -webkit-transition: 0.3s;
  transition: 0.3s;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: #fff;
  z-index: 100;
}
.header__inner {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  height: 80px;
}
.header__logo {
  font-size: 30px;
  font-weight: bold;
  color: #2f7d5b;
}
.header__hamburger {
  position: relative;
  width: 40px;
  height: 40px;
  cursor: pointer;
}
@media screen and (min-width: 768px) {
  .header__hamburger {
    display: none;
  }
}
.header__hamburger-line {
  position: absolute;
  left: 50%;
  width: 24px;
  height: 2px;
  background: #333;
  -webkit-transform: translateX(-50%);
          transform: translateX(-50%);
  -webkit-transition: 0.3s;
  transition: 0.3s;
  z-index: 2;
}
.header__hamburger-line:nth-child(1) {
  top: 11px;
}
.header__hamburger-line:nth-child(2) {
  top: 19px;
}
.header__hamburger-line:nth-child(3) {
  top: 27px;
}
.header__nav {
  position: fixed;
  top: 0;
  right: 0;
  width: 80%;
  height: 100vh;
  padding: 100px 30px;
  background: #fff;
  -webkit-transform: translateX(100%);
          transform: translateX(100%);
  -webkit-transition: 0.4s;
  transition: 0.4s;
}
@media screen and (min-width: 768px) {
  .header__nav {
    position: static;
    width: auto;
    height: auto;
    padding: 0;
    -webkit-transform: none;
            transform: none;
  }
}
.header__menu {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  gap: 30px;
}
@media screen and (min-width: 768px) {
  .header__menu {
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
        -ms-flex-direction: row;
            flex-direction: row;
    gap: 40px;
  }
}
.header__link {
  font-size: 16px;
  -webkit-transition: 0.3s;
  transition: 0.3s;
}
.header__link:hover {
  color: #2f7d5b;
}

.header.is-open .header__nav {
  -webkit-transform: translateX(0);
          transform: translateX(0);
}
.header.is-open .header__hamburger-line:nth-child(1) {
  top: 19px;
  -webkit-transform: translateX(-50%) rotate(45deg);
          transform: translateX(-50%) rotate(45deg);
}
.header.is-open .header__hamburger-line:nth-child(2) {
  opacity: 0;
}
.header.is-open .header__hamburger-line:nth-child(3) {
  top: 19px;
  -webkit-transform: translateX(-50%) rotate(-45deg);
          transform: translateX(-50%) rotate(-45deg);
}
.header.is-open + .overlay {
  opacity: 1;
  visibility: visible;
}

.inner {
  width: min(100% - 32px, 1120px);
  margin-inline: auto;
}

.button {
  display: inline-block;
  background: #2f7d5b;
  color: #fff;
  padding: 16px 40px;
  border-radius: 999px;
  -webkit-transition: 0.3s;
  transition: 0.3s;
}

.button:hover {
  opacity: 0.8;
}

.section-title {
  text-align: center;
  margin-bottom: 48px;
}

.section-title__en {
  color: #2f7d5b;
  font-size: 14px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.section-title__ja {
  font-size: 32px;
  margin-top: 8px;
}

.fv {
  padding-top: 100px;
  padding-bottom: 80px;
}

@media screen and (min-width: 768px) {
  .fv__inner {
    position: relative;
  }
}

.fv__image {
  border-radius: 16px;
  overflow: hidden;
}
.fv__image img {
  width: 100%;
  height: auto;
  display: block;
}

.fv__content {
  margin-top: 40px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
}
@media screen and (min-width: 768px) {
  .fv__content {
    margin-top: 0;
    padding: 15px;
    width: 38%;
    max-width: 420px;
    background-color: rgba(255, 255, 255, 0.55);
    border-radius: 16px;
    position: absolute;
    top: 3%;
    left: 3%;
    z-index: 1;
  }
}
@media screen and (min-width: 1024px) {
  .fv__content {
    top: 8%;
    padding: 25px;
  }
}

.fv__sub-title {
  color: #5ee0a8;
  font-weight: 700;
}

.fv__title {
  margin-top: 16px;
  font-size: clamp(1.3rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.4;
}

.fv__text {
  margin-top: 24px;
  line-height: 1.8;
  font-size: clamp(0.8rem, 1.2vw, 1rem);
}

.fv__button {
  margin-top: 25px;
  -ms-flex-item-align: start;
      align-self: flex-start;
}

.about {
  padding: 80px 0;
  background-color: #eef0ef;
}

.about__inner {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  gap: 40px;
}
@media screen and (min-width: 768px) {
  .about__inner {
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
        -ms-flex-direction: row;
            flex-direction: row;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    gap: 60px;
  }
}

@media screen and (min-width: 768px) {
  .about__image {
    -webkit-box-flex: 1;
        -ms-flex: 1;
            flex: 1;
  }
}
.about__image img {
  width: 100%;
  height: auto;
  display: block;
}

@media screen and (min-width: 768px) {
  .about__content {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-flex: 1;
        -ms-flex: 1;
            flex: 1;
  }
}

.about__text {
  line-height: 1.8;
}

.about__button {
  margin-top: 32px;
  -ms-flex-item-align: end;
      align-self: flex-end;
}

.service {
  padding: 80px 0;
  background-color: #eef0ef;
}

.service__list {
  display: grid;
  gap: 70px;
}
@media screen and (min-width: 768px) {
  .service__list {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
  }
}

.service__image {
  border-radius: 16px;
  overflow: hidden;
}
.service__image img {
  display: block;
  width: 100%;
}

.service__title {
  margin-top: 24px;
  font-size: 24px;
  font-weight: 700;
  text-align: center;
}

.service__text {
  margin-top: 16px;
  line-height: 1.8;
  max-width: 28ch;
  margin: 16px auto 0;
}

.works {
  padding: 80px 0;
}

.works__list {
  display: grid;
  gap: 40px;
}
@media screen and (min-width: 768px) {
  .works__list {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
  }
}

.works__link {
  display: block;
  overflow: hidden;
  border-radius: 16px;
  -webkit-transition: 0.3s;
  transition: 0.3s;
  background: #fff;
  -webkit-box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
          box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}
.works__link:hover {
  -webkit-transform: translateY(-8px);
          transform: translateY(-8px);
  -webkit-box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
          box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

.works__image img {
  display: block;
  width: 100%;
}

.works__content {
  text-align: center;
  padding-bottom: 35px;
  height: 150px;
}

.works__title {
  margin-top: 20px;
  font-size: 20px;
  font-weight: 700;
}

.works__category {
  margin-top: 12px;
  color: #666;
  font-size: 14px;
}

.strength {
  padding-block: 80px;
  background: #eef0ef;
}

.strength__list {
  display: grid;
  gap: 24px;
}
@media screen and (min-width: 768px) {
  .strength__list {
    grid-template-columns: repeat(3, 1fr);
  }
}

.strength__item {
  position: relative;
  background: #fff;
  border-radius: 16px;
  padding: 40px 24px 24px;
  overflow: hidden;
}

.strength__number {
  position: absolute;
  top: 12px;
  right: 20px;
  font-size: clamp(4rem, 8vw, 5rem);
  font-weight: 700;
  line-height: 1;
  color: rgba(47, 125, 91, 0.15);
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
}

.strength__title {
  position: relative;
  z-index: 1;
  font-size: 2.2rem;
  font-weight: 700;
}

.strength__text {
  margin-top: 16px;
  position: relative;
  z-index: 1;
  line-height: 1.8;
}

.news {
  padding-block: 80px;
}

.news__list {
  border-top: 1px solid #ddd;
}

.news__item {
  border-bottom: 1px solid #ddd;
}

.news__link {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  gap: 12px;
  padding-block: 20px;
  -webkit-transition: opacity 0.3s;
  transition: opacity 0.3s;
}
.news__link:hover {
  opacity: 0.7;
}
@media screen and (min-width: 768px) {
  .news__link {
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
        -ms-flex-direction: row;
            flex-direction: row;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    gap: 40px;
  }
}

.news__date {
  font-size: 1.4rem;
  color: #888;
  -ms-flex-negative: 0;
      flex-shrink: 0;
}
@media screen and (min-width: 768px) {
  .news__date {
    width: 100px;
  }
}

.news__text {
  font-size: 1.5rem;
  font-weight: 500;
}

.news__button {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: end;
      -ms-flex-pack: end;
          justify-content: flex-end;
  margin-top: 32px;
}

.news__more {
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  margin-top: 32px;
  color: #2f7d5b;
  font-size: 1.4rem;
  border-bottom: 1px solid #2f7d5b;
  -webkit-transition: opacity 0.3s;
  transition: opacity 0.3s;
}
.news__more:hover {
  opacity: 0.7;
}

.contact {
  padding-block: 80px;
  background: #2f7d5b;
  color: #fff;
  text-align: center;
}

.contact__title {
  font-size: 2.8rem;
  font-weight: 700;
}

.contact__text {
  margin-top: 20px;
  line-height: 1.8;
}

.contact__button {
  margin-top: 32px;
  background: #fff;
  color: #2f7d5b;
}
.contact__button:hover {
  opacity: 0.8;
}

.footer {
  padding-block: 40px;
  background: #222;
  color: #fff;
}

.footer__inner {
  text-align: center;
}

.footer__logo {
  font-size: 2rem;
  font-weight: 700;
}

.footer__menu {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  gap: 24px;
  margin-top: 24px;
}

.footer__link {
  font-size: 1.4rem;
  -webkit-transition: opacity 0.3s;
  transition: opacity 0.3s;
}
.footer__link:hover {
  opacity: 0.7;
}

.footer__copyright {
  margin-top: 32px;
  font-size: 1.2rem;
  color: #888;
}

.page-fv {
  position: relative;
  background-color: rgba(47, 125, 91, 0.1);
  padding: 100px 0 60px;
}

.page-fv__title {
  font-size: 3.2rem;
  font-weight: 700;
  color: #2f7d5b;
  letter-spacing: 0.08em;
}

.page-fv__text {
  margin-top: 12px;
  font-size: 1.6rem;
  color: #333;
}

.contact-page {
  position: relative;
  padding: 80px 0;
  background: -webkit-gradient(linear, left top, left bottom, from(rgba(255, 255, 255, 0.6)), to(rgba(255, 255, 255, 0.6))), url("../images/contact-bg-sp.webp") center/cover no-repeat;
  background: linear-gradient(rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0.6)), url("../images/contact-bg-sp.webp") center/cover no-repeat;
}
@media screen and (min-width: 1024px) {
  .contact-page {
    background: -webkit-gradient(linear, left top, left bottom, from(rgba(255, 255, 255, 0.6)), to(rgba(255, 255, 255, 0.6))), url("../images/contact-bg-pc.webp") center/cover no-repeat;
    background: linear-gradient(rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0.6)), url("../images/contact-bg-pc.webp") center/cover no-repeat;
  }
}

.contact-page__content {
  max-width: 760px;
  margin-inline: auto;
  padding: 40px 24px;
}
@media screen and (min-width: 768px) {
  .contact-page__content {
    padding: 56px;
  }
}

.contact-page__lead {
  text-align: center;
}

.contact-page__description {
  margin-top: 24px;
  line-height: 2;
  color: #333;
}

.contact-form {
  margin-top: 48px;
}

.contact-form__group + .contact-form__group {
  margin-top: 32px;
}

.contact-form__label {
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-weight: 700;
}

.contact-form__required {
  padding: 2px 8px;
  border-radius: 4px;
  background-color: #d9534f;
  color: #fff;
  font-size: 1.2rem;
}

.contact-form__input,
.contact-form__select,
.contact-form__textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #ccc;
  border-radius: 8px;
  background-color: #fff;
  -webkit-transition: border-color 0.3s;
  transition: border-color 0.3s;
}

.contact-form__textarea {
  resize: vertical;
}

.contact-form__input:focus,
.contact-form__select:focus,
.contact-form__textarea:focus {
  border-color: #2f7d5b;
  outline: none;
}

.contact-form__agreement {
  margin-top: 40px;
  text-align: center;
}

.contact-form__checkbox {
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  gap: 8px;
}

.contact-form__button {
  margin-top: 40px;
  text-align: center;
}