html {
  font-family: "Noto Sans JP", "Source Sans Pro", Roboto, -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  word-spacing: 1px;
  -ms-text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: antialiased;
  box-sizing: border-box;
  background-color: #f5f5f5;
  scroll-behavior: smooth;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}

::-webkit-scrollbar-track {
  border-radius: 10px;
  box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.1);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(to bottom, #F2EEEB 0%, #F2EEEB 100%);
  border-radius: 10px;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.3);
}

main {
  display: block;
}

li {
  list-style: none;
}

a {
  text-decoration: none;
}

em,
address {
  font-style: normal;
}

button {
  cursor: pointer;
}

.st-seo__hidden {
  position: absolute;
  visibility: hidden;
  top: 0;
}

.st-header {
  width: 100%;
  background-color: rgba(255, 255, 255, 0.7529411765);
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10;
}

.st-header__btn {
  display: none;
}

.st-sidemenu__list {
  display: flex;
  justify-content: flex-end;
  margin: 24px 14vw 24px 0;
}
.st-sidemenu__list li {
  margin-right: 1.5vw;
}
.st-sidemenu__list li a {
  padding: 15px 2vw;
  color: #877E68;
  font-weight: bold;
}
.st-sidemenu__list li a:hover, .st-sidemenu__list li a:focus {
  background-color: #877E68;
  opacity: 0.5;
  border-radius: 10px;
  color: #ffffff;
}
.st-sidemenu__list li:last-child a {
  background-color: #877E68;
  border-radius: 10px;
  color: #ffffff;
}
.st-sidemenu__list li:last-child a:hover, .st-sidemenu__list li:last-child a:focus {
  opacity: 0.8;
}

.st-footer {
  width: 100%;
  background-color: rgba(135, 126, 104, 0.8);
  padding: 10px 0 60px;
}
.st-footer p {
  text-align: center;
  color: #ffffff;
  font-weight: bold;
}

@media screen and (max-width: 680px) {
  .st-header {
    position: fixed;
    top: 0;
    left: 0;
    height: 70px;
  }
  .st-sidemenu {
    background-color: rgba(255, 255, 255, 0.7529411765);
    position: fixed;
    right: 0;
    top: 70px;
    height: calc(100vh - 18.666vw);
    width: 70%;
    padding: 0 8vw;
    transform: translateX(122%);
    transition: 0.2s all;
  }
  .st-sidemenu.is-active {
    transform: translateX(0);
  }
  .st-header__btn {
    display: block;
    position: fixed;
    width: 40px;
    height: 40px;
    right: 15px;
    top: 15px;
    background-color: rgba(255, 255, 255, 0.6);
    box-shadow: 0 0 4px rgba(143, 143, 143, 0.4);
    border: none;
    border-radius: 50%;
    cursor: pointer;
  }
  .st-header__btn i {
    display: block;
    width: 40%;
    height: 0.5px;
    position: relative;
    background-color: #535353;
    margin: 0 auto;
    transition: 0.2s all;
  }
  .st-header__btn i::after, .st-header__btn i::before {
    content: "";
    width: 100%;
    height: 0.5px;
    display: block;
    background-color: #535353;
    position: absolute;
    left: 0;
    transition: 0.2s all;
  }
  .st-header__btn i::after {
    bottom: -6px;
  }
  .st-header__btn i::before {
    top: -6px;
  }
  .st-sidemenu__list {
    display: block;
  }
  .st-sidemenu__list li a {
    display: flex;
    align-items: center;
    padding: 12px 12px;
    color: #877E68;
    font-weight: bold;
    font-size: 16px;
    background-color: transparent;
    margin: 2vw;
  }
  .st-sidemenu__list li:last-child a {
    color: #877E68;
    background-color: inherit;
  }
  .st-sidemenu__list li:last-child a:hover, .st-sidemenu__list li:last-child a:focus {
    background-color: #877E68;
    opacity: 0.5;
    border-radius: 10px;
    color: #ffffff;
  }
}