main {
  padding: 0 2rem 4rem;
  background-color: unset;
}
main h4 {
  border-bottom: solid 2px #333333;
  margin-bottom: 1rem;
  font-family: "游明朝", "Yu Mincho", YuMincho, "Hiragino Mincho Pro", serif;
  font-size: 1.6rem;
  margin: 6rem 0 2rem;
}
main .btn {
  display: grid;
  place-items: center;
  width: 50%;
  min-height: 2em;
  text-align: center;
  background-color: #160e75;
  color: #ffffff;
  font-size: 1.2em;
  font-weight: bold;
  text-decoration: none;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  border-radius: 2em;
  border: solid 4px #ffffff;
  margin: 4em auto;
  padding: 0.25em;
  display: block;
  -webkit-transition: all 0.5s ease 0s;
  transition: all 0.5s ease 0s;
}
main .btn:hover {
  opacity: 0.5;
}

#r_wrapper {
  position: relative;
  min-height: 100lvh;
  padding: 10rem 2rem 0;
  background-image: linear-gradient(0deg, #d9e1f9, transparent);
  background-size: contain;
}
#r_wrapper::after {
  content: "";
  position: absolute;
  background: url("../img/bg.png") no-repeat top center;
  background-size: contain;
  width: 100%;
  max-width: 1920px;
  min-height: 100lvh;
  top: 0;
  left: 0;
  z-index: -1;
}
#report_page {
  margin: auto;
  max-width: 1000px;
}
#report_page .top_main {
  position: relative;
}
#report_page .top_main::after {
  content: "";
  position: absolute;
  display: inline-block;
  top: 2%;
  left: 2%;
  width: 96%;
  height: 96%;
  border: solid 10px #ffffff;
  border-width: 0.2em;
  box-sizing: border-box;
}
#report_page .title {
  display: grid;
  background-image: linear-gradient(#7023ff, #174dba);
  color: #ffffff;
  grid-template-columns: 25% auto;
  grid-template-rows: auto auto;
}
#report_page .title div {
  grid-column: 1 / 2;
  grid-row: 1 / 3;
  align-self: flex-end;
  text-align: center;
  padding: 0.5em;
  padding-bottom: 0em;
  min-height: 0;
}
#report_page .title img {
  width: 60%;
}
#report_page .title h2,
#report_page .title h3{
  align-self: flex-end;
  color: #ffffff;
}
#report_page .title h2{
  padding-top: 1em;
}
#report_page .title h3{
  align-self: flex-start;
  padding-bottom: 1em;
}

#report_page main {
  background-color: #ffffff;
  padding: 4em 2em;
}
#report_page main p {
  font-family: "Sawarabi Gothic", sans-serif;
  word-break: break-all;
}
#report_page main h4 {
  border: solid 1px #160e75;
  border-left: none;
  border-right: none;
  padding: 0.5em 0 ;
  color: #160e75;
  text-align: center;
  font-family: "YuGoPr6N", "Yu Gothic Pr6N", "游ゴシック Pr6N", "Yu Gothic", "游ゴシック", sans-serif;
}
#report_page .read_text {
  font-size: 1.2em;
  line-height: 1.6em;
}
#report_page p:not(.read_text) {
  margin-bottom: 1em;
}
#report_page img + span {
  display: inline-block;
  margin-top: 0.5em;
  font-size: 0.75em;
  line-height: 1.2em;
  color: #666666;
}
#report_page .end {
  text-align: right;
  color: #666666;
}

#backnumber h5 {
  text-align: center;
  border-bottom: solid 1px #333333;
  color: #333333;
  font-size: 1.6em;
  font-weight: bold;
  margin-top: 8em;
  margin-bottom: 4em;
}
#backnumber li {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: repeat(3,auto);
  gap: 0;
  margin-bottom: 20px;
  background-color: #304899;
}

#backnumber p {
  color: #fff;
  margin-bottom: 0 !important;
  padding:1em;
  box-sizing: border-box;
}
#backnumber p:nth-of-type(1) {
  position: relative;
  display: grid;
  padding: 0;
  overflow: hidden;
}
#backnumber img {
  transition: all 0.5s ease 0s;
}
#backnumber img.num {
  position: absolute;
  bottom: 0.5em;
  left:0.5em;
  height: 60%;
  width: auto;
}
#backnumber p:nth-of-type(2) {
  padding-bottom: 0.2em;
  font-weight: bold;
}
#backnumber p:nth-of-type(3) {
  padding-top: 0.2em;
  font-size: 0.9em;
}
#backnumber span {
  background-color: #ffffff;
  font-family: 'Courier New', Courier, monospace;
  text-align: right;
  font-size: 0.8em;
  font-weight: bold;
  line-height: 1em;
  padding-top: 0.4em;
}
#backnumber + .btn {
  width: 100%;
}
#backnumber a {
  transition: all 0.5s ease 0s;
}
#backnumber a:hover {
  opacity: 0.7;
  text-decoration: none;
  color: #ff8b41;
}
#backnumber a:hover img {
  opacity: 1;
  transform: scale(1.1);
}

@media screen and (min-width: 768px) {
  html {
    font-size: 18px;
  }

  #report_page .title div {
    padding: 1em;
    padding-bottom: 0em;
  }
  #report_page .title h2{
    font-size: 2.4rem;
    line-height: 1.25em;
  }
  #report_page .title h3{
    font-size: 1.8rem;
    line-height: 1.25em;
  }

  main {
    padding: 0 4rem 6rem;
  }
  main dl {
    grid-template-columns: 6em 0.75fr;
  }
  
  main dl dt:nth-child(4n-1),
  main dl dd:nth-child(4n) {
    -webkit-transform: translateX(-100px);
            transform: translateX(-100px);
  }
  #report_page .top_main::after {
    border-width: 10px;
  }
  #report_page .read_text {
    font-size: 26px;
  }
  #report_page main {
    padding: 84px 130px;
  }



  #backnumber li {
    grid-template-columns: 1fr 2fr;
  }
  #backnumber p:nth-of-type(1) {
    grid-column: 1 / 2;
    grid-row: 1 / 3;
  }
  #backnumber p:nth-of-type(2) {
    grid-column: 2 / 3;
    grid-row: 1 / 2;
    line-height: 1.2em;
  }
  #backnumber p:nth-of-type(3) {
    grid-column: 2 / 3;
    grid-row: 2 / 3;
    line-height: 1.2em;
  }
  #backnumber span {
    grid-column: 1 / 3;
    grid-row: 3 / 4;
  }


}