body {
  font-family: "Montserrat", "Noto Sans JP", sans-serif;
  color: #3c301e;
}

img {
  width: 100%;
}

/* header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  border-bottom: 1px solid rgba(241, 238, 228, 0.25);
  background-color: #fff;
  width: 100%;
  text-align: center;
  padding: 20px 0;
}

.header-inner {
  align-items: center;
}

.header-logo {
  margin: 0 auto;
  width: 135px;
}

.header-nav-list {
  display: none;
  flex-direction: column;
  position: fixed;
  top: 0;
  right: 0;
  width: 200px;
  height: 100vh;
  background-color: #fff;
  padding: 60px 20px;
  box-shadow: -2px 0 5px rgba(0, 0, 0, 0.1);
}

.header-nav-list.open {
  display: flex;
}

.header-nav-item {
  margin-bottom: 20px;
}

.header-nav-link {
  letter-spacing: 0.2em;
}

/* ハンバーガーメニュー */
.hamburger {
  position: absolute;
  top: 50%;
  right: 20px;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1000;
}

.hamburger-line {
  width: 100%;
  height: 3px;
  background-color: #3c301e;
  transition: transform 0.3s, background-color 0.3s;
}

/* 共通クラス */
.inner {
  padding: 0 30px;
}

.section-heading {
  display: flex;
  align-items: center;
  text-align: center;
  margin-bottom: 5px;
}

.section-heading .round {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #ffcc16;
  margin-right: 13px;
  flex-shrink: 0;
}

.section-heading-l {
  color: #fff;
}

.section-heading-main {
  display: block;
  text-align: left;
  font-size: 16px;
  font-weight: 400;
  letter-spacing: 0.2em;
}

.section-heading-sub {
  display: block;
  font-size: 12px;
}

/* ファーストビュー */
.fv-picture {
  object-fit: contain;
  width: 100%;
  margin-top: 61px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.fv-picture img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* serviceセクション */
.service {
  background-color: #fff;
  padding: 70px 0;
}

.service-item {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.service-item.show {
  opacity: 1;
  transform: translateY(0);
}

.service-item + .service-item {
  margin-top: 20px;
}

.service-text-contents {
  text-align: left;
  padding: 16px 0;
}

.service-name-main {
  display: block;
  font-size: 40px;
  font-weight: bold;
  letter-spacing: 0.2em;
}

.service-name-sub {
  display: block;
  font-size: 12px;
  font-weight: bold;
  color: #ffcc16;
}

.service-text-main {
  font-size: 14px;
  margin-top: 20px;
}

.service-text-sub {
  font-size: 14px;
  margin-top: 20px;
}

/* aboutセクション */
.about {
  padding: 40px 0;
}

.about-img {
  display: none;
}

.about-contents-main {
  margin-top: 26px;
  font-weight: bold;
}

.about-text-contents {
  margin-top: 20px;
}

.about-table {
  margin-top: 16px;
  width: 100%;
  max-width: 544px;
  border-spacing: 0;
  font-size: 14px;
}

.about-table th,
.about-table td {
  border-bottom: 1px solid rgba(53, 51, 42, 0.25);
}

.about-table th {
  text-align: left;
  font-weight: normal;
  padding: 1rem;
}

.about-table td {
  padding: 1rem 0;
}

/* footer */
.footer {
  background-color: #d9d9d9;
  text-align: center;
  color: #fff;
}

.footer-logo {
  width: 200px;
  margin: 0 auto;
}

.footer-text {
  font-size: 12px;
}

.footer-nav-list {
  margin-top: 40px;
  display: flex;
  justify-content: center;
  gap: 24px;
  padding: 0 20px;
}

.footer-nav-link {
  display: none;
}

.footer-nav-link-text {
  font-size: 12px;
  margin-top: 12px;
}

.footer-copy-wrapper {
  border-top: 1px solid rgba(241, 238, 228, 0.25);
  padding: 12px;
}

.footer-copylight {
  font-size: 8px;
}

/* タブレット、PCサイズの表示 */
@media screen and (min-width: 768px) {
  .header {
    padding: 20px 0;
  }

  .header-inner {
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
  }

  .header-logo {
    margin: 0;
  }

  .header-nav {
    display: flex;
    align-items: center;
  }

  .header-nav-list {
    display: flex;
    flex-direction: row;
    position: static;
    width: auto;
    height: auto;
    background-color: transparent;
    box-shadow: none;
    padding: 0;
    gap: 40px;
  }

  .header-nav-item {
    margin-bottom: 0;
  }

  .header-nav-link {
    transition: opacity 0.3s;
  }

  .header-nav-link:hover {
    opacity: 0.7;
  }

  .inner {
    padding: 0 56px;
    margin: 0 auto;
  }

  .section-heading {
    margin-top: 80px;
  }

  .section-heading-main {
    font-size: 22px;
    letter-spacing: 0.2em;
  }

  .about {
    margin-top: 0;
  }

  .about-contents {
    display: flex;
    gap: 40px;
    align-items: center;
  }

  .about-img {
    width: 300px;
  }

  .about-text-contents {
    margin-top: 0;
  }

  .about-text {
    font-size: 15px;
  }

  .about-text + .about-text {
    margin-top: 30px;
  }

  .service {
    padding: 0;
  }

  .service-list {
    gap: 20px;
  }

  .service-item + .service-item {
    margin-top: 50px;
  }

  .service-name-main {
    font-size: 60px;
  }

  .about {
    padding: 0 0 100px;
  }

  .footer {
    padding: 0 0 50px;
  }

  .footer-text {
    margin-top: 12px;
  }

  .footer-nav-list {
    gap: 40px;
  }

  .footer-copylight {
    font-size: 13px;
  }

  .hamburger {
    display: none; /* PCサイズではハンバーガーメニューを非表示にする */
  }
}