html {
  scroll-behavior: smooth;
}
body {
  animation: loading 0.5s;
  max-width: 800px;
  margin: 0 auto;
  background-color: #000;
  background-image: url("../../img/PRB_square.webp");
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-size: cover;
  font-family: sans-serif;
  font-size: 1.2rem;
  color: #CCCCCC;
}
@keyframes loading {
  0% {opacity: 0;}
  100% {opacity: 1;}
}
a {
  color:inherit;
  text-decoration: none;
  display: block;
  font-size: 1em;
}
table {
  font-size: 1em;
  margin: auto;
}
.topbox1 {
  box-sizing: border-box;
  width: 100%;
  height: 50px;
  margin-top: 40px;
  padding: 0 10px;
}
.topbox2 {
  box-sizing: border-box;
  width: 100%;
  height: 30px;
  padding: 0 10px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}
.title {
  padding: 10px 0;
  font-size: 1.6rem;
  color: #fff;
}
.date {
  font-family: serif;
  font-size: 1rem;
  color: #ccc;
}
.recedi {
  margin-left: 10px;
  font-family: sans-serif;
  font-size: 1rem;
  color: #FFB429;
}
.place {
  font-family: serif;
  font-size: 1rem;
  color: #ccc;
}
.kyoku {
  width: 100%;
  height: 300px;
  overflow-y: scroll;
}
.toarch {
  position: fixed;
  top: 32px;
  right: 32px;
  background: #000;
  color: #ccc;
  border: 1px solid #666;
  padding: 1px 2px;
  font-family: serif;
  font-size: 1rem;
  border-radius: 6px;
  z-index: 1;
}
.bu {
  margin: 6px 0;
  color: #FFB429;
  font-size: 1em;
}
.emaki {
  margin: 6px 0;
  color: #4b9685;
  font-size: 1em;
}
.flex1 {
  display: flex;
  align-items: center;
}
.fb {
  margin: 16px 0 16px 20px;
}
.spanfb {
  font-family: serif;
}
.foot {
  margin: 30px 0;
  text-align: center;
  font-family: serif;
  font-size: 0.8rem;
}
.hline {
  border: 1px solid #666666;
}
.youtube {
  width: 100%;
  aspect-ratio: 16 / 9;
}
.youtube iframe {
  width: 100%;
  height: 100%;
}