body {
  margin: 0;
  background: white;
  color: #333333;
}

header {
  position: relative;
  height: 100vh;
}
.mv-photo {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("images/shiro.jpg");
  background-size: cover;
  background-position: center;
  filter: grayscale(1) brightness(0.4);
}
.mv-text {
  position: relative;
  text-align: center;
  color: white;
  padding-top: 40vh;
}
.mv-title {
  font-family: serif;
  font-size: 60px;
  letter-spacing: 10px;
  margin: 0 0 10px 0;
}
.welcome {
  margin: 0;
}

section {
  padding: 40px 20px;
}
.naka {
  max-width: 800px;
  margin: 0 auto;
}
h2 {
  text-align: center;
  margin-bottom: 30px;
}

.item {
  margin-bottom: 50px;
  text-align: center;
}
.item img {
  width: 100%;
  max-width: 500px;
}
.shutten {
  display: block;
  font-size: 10px;
  color: gray;
}
.item h3 {
  margin: 10px 0 5px 0;
}
.item p {
  margin: 0;
  font-size: 14px;
}

footer {
  border-top: 1px solid gray;
  padding: 30px 20px;
  font-size: 14px;
}
footer .note {
  font-size: 12px;
  color: gray;
}