*{
    margin: 0;
    padding: 0;
}
html{
  scroll-behavior: smooth;
}
body{
  background-color: rgb(249, 245, 239);
}
#btn1 {
    width: 100px;
    line-height: 30px;
    border-radius: 10px;
    font-size: 12px;
    background: rgb(193, 154, 92);
    border: none;
    position: fixed;
    bottom: 20px;
    right: 20px;
    visibility: hidden;
    opacity: 0;
    transition: 0.5s;
    color: rgb(95, 55, 0);
    cursor: pointer;
}

#btn1.on {
    visibility: visible;
    opacity: 1;
}
.block {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  position: relative;
  opacity: 0;
  transform: translateY(30px);
  transition: all 1s ease-out;
}

.block.active {
  opacity: 1;
  transform: translateY(0);
}
.block img {
  max-width: 80%;
  height: auto;
  display: block;
  margin: 0 auto;
}

header h1 {
	margin: 0 0 26px 0;
	padding-top: 18px;
	text-align: center;
}
.toumei ul li {
  line-height: 2.6;
  margin-bottom: 20px;
}
#path ol li {
	display: inline;
	margin-right: 5px;
}
h2{
   color:rgb(095, 055, 000);
    text-align: center;
  margin: 60px 0 30px;
  font-size: 28px;
}
.topics.history-box ul {
  padding-left: 20px;
  list-style: none;
}
.topics.history-box ul li {
  text-align: left;
  line-height: 2;
  margin-bottom: 15px;
}

#path ol li a {
	padding-right: 15px;
  background-image: url(../images/path_arrow.png);
	background-repeat: no-repeat;
	background-position: right center;
}
.topics.history-box {
  max-height: 200px;
  overflow-y: auto;
  padding-right: 10px;
}
@keyframes equalizer01 {
  0% {
    width: 70%;
  }
  10% {
    width: 50%;
  }
  20% {
    width: 100%;
  }
  30% {
    width: 10%;
  }
  40% {
    width: 50%;
  }
  50% {
    width: 70%;
  }
  60% {
    width: 50%;
  }
  70% {
    width: 10%;
  }
  80% {
    width: 100%;
  }
  90% {
    width: 10%;
  }
  100% {
    width: 70%;
  }
}
@keyframes equalizer02 {
  0% {
    width: 30%;
  }
  10% {
    width: 20%;
  }
  20% {
    width: 40%;
  }
  30% {
    width: 10%;
  }
  40% {
    width: 20%;
  }
  50% {
    width: 30%;
  }
  60% {
    width: 20%;
  }
  70% {
    width: 10%;
  }
  80% {
    width: 40%;
  }
  90% {
    width: 10%;
  }
  100% {
    width: 30%;
  }
}
.toggle_btn {
  display: block;
  position: fixed;
  top: 30px;
  left: 30px;
  width: 60px;
  height: 30px;
  transform: translate(0, 0);
  transition: all .5s;
  cursor: pointer;
  z-index: 3;
}
.see .toggle_btn {
  left: 330px;
}
.toggle_btn span {
  display: block;
  position: absolute;
  left: 0;
  width: 30px;
  height: 2px;
  background-color: rgb(095, 055, 000);
  transition: all .5s;
}
.toggle_btn span:nth-child(1) {
  top: 5px;
  width: 60px;
  animation: equalizer01 7000ms infinite;
}
.toggle_btn span:nth-child(2) {
  top: 15px;
  width: 30px;
  animation: equalizer02 5000ms infinite;
  animation-delay: 0.33s;
}
.toggle_btn span:nth-child(3) {
  top: 25px;
  width: 20px;
  animation: equalizer02 5000ms infinite;
}
.see .toggle_btn span {
  background-color: #fff;
  width: 30px;
}
.see .toggle_btn span:nth-child(1) {
  transform: translate(0, 10px) rotate(-45deg);
  animation: unset;
}
.see .toggle_btn span:nth-child(2) {
  opacity: 0;
  animation: unset;
}
.see .toggle_btn span:nth-child(3) {
  transform: translate(0, -10px) rotate(45deg);
  animation: unset;
}
#nav{
    width: 100vw;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    background-color: rgba(198, 161, 102, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1;
    visibility: hidden;
    opacity: 0;
    transition: 0.5s;
}
#nav ul{
    list-style-type: none;
}
#nav ul li a{
    color: rgb(095, 055, 000);
    font-size: 25px;
    text-decoration: none;
    line-height: 2;
}
#nav.see{
    visibility: visible;
    opacity: 1;
}
#main{
    width: 80%;
    height: auto;
    padding: 20px;
    line-height: 2;
    margin: 20px auto;
      text-align: center;
}
#main ul li{
  padding: 10px;
  font-size: 20px;
  list-style-type: none;
  color: rgb(193, 154, 092);
}
#main ul lo{
    color: rgb(095, 055, 000);
}
.topics{
  margin-top: 10px;
	overflow: hidden;
  color: rgb(095, 055, 000);
  font-size: 20px;
}
.topics h2{
  color: rgb(095, 055, 000);
  padding-bottom: 10px;
}
.topics p{
  margin-top: 10px;
  font-size: 20px;
}
.topics:last-child {
	margin-bottom: 10px;
}
footer {
	text-align: center;
  padding-top: 10px;
  padding-bottom: 10px;
  background-color: rgb(193, 154, 092);
  color: rgb(095, 055, 000);
  font-size: 20px;
  clear: both;
}
.tomei{
  transform: translateY(30px);
  opacity: 0;
  visibility: hidden;
  transition: 1s;
}
.fadein{
  transform: translateX(0);
  opacity: 1;
  visibility: visible;
}
.fade-target {
  opacity: 0;
   opacity: 0;
  transform: translateY(30px);
  transition: 0.8s ease-out;
}
.fade-target.active {
  opacity: 1;
  transform: translateY(0);
}

#menu-section {
  width: 80%;
  margin-bottom: 80px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.menu-section:last-of-type {
  margin-bottom: 120px;
}

.menu {
  width: 30%;
  opacity: 0;
  transform: translateY(30px);
  transition: 0.8s ease-out;
}

.menu img {
  width: 100%;
  height: auto;
  display: block;
}

.menu.active {
  opacity: 1;
  transform: translateY(0);
}
.block {
  max-width: 900px;
  margin: 280px auto;
  padding: 0 20px;
}
.fadein img {
  display: block;
  margin: 0 auto;
}
#menu-section {
  width: 80%;
  margin: 50px auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.menu p {
  text-align: center;
  font-size: 16px;
  margin-top: 10px;
  color: rgb(95, 55, 0);
  line-height: 1.6;
}