html {
  font-size: 62.5%;
}

body {
  overflow-x: hidden;
  font-size: 1.4em;
  color: #333;
}

main {
  padding: 0 0 50px 0;
}

p,
dd,
li {
  font-size: 1.6rem;
  line-height: 1.6em;
  letter-spacing: .04em;
  overflow-x: hidden;
}

li,
.indent {
  padding-left: 1em;
  text-indent: -1em;
}

a {
  word-wrap: break-word;
}

br.sp {
  display: none;
}

.mt_20 {
  margin-top: 20px;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

header {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px 0;
}

header img {
  width: 90%;
  max-width: 300px;
  height: auto;
}

.ttl {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  max-width: 1000px;
  margin: 0 auto;
  margin-bottom: 50px;
}

.ttl img {
  width: 100%;
  height: auto;
}

h1 {
  color: #038940;
  font-size: 30px;
  font-weight: bold;
  text-align: center;
  line-height: 1.6;
}

.box {
  margin-top: 60px;
  padding: 20px;
  background-color: #f9f9f9;
  border-radius: 5px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.box p {
  text-align: center;
}

dl {
  display: flex;
  margin-bottom: 20px;
  max-width: 480px;
  margin: 0 auto 20px auto;
}

dl dt {
  min-width: 100px;
  font-size: 18px;
  letter-spacing: .1em;
  font-weight: 700;
  padding-top: 4px;
}

dl dd {
  font-size: 18px;
}

.link_btn {
  display: block;
  width: 100%;
  max-width: 300px;
  margin: 30px auto 0 auto;
  padding: 16px 45px;
  background-color: #ffdd38;
  color: #038940;
  border: 2px solid #038940;
  border-radius: 5px;
  text-align: center;
  font-size: 1.6rem;
  font-weight: bold;
  transition: all .6s;
}

.link_btn:hover {
  opacity: .6;
}

@media screen and (max-width: 599px) {

  br.sp {
    display: inline;
  }

  h1 {
    font-size: 6.3vw;
  }

  header img {
    width: 150px;
  }

  dl dt {
    font-size: 16px;
    min-width: 70px;
  }

  dl dd {
    font-size: 14px;
  }
}