html {
  background: #000;
}
body, html {
  width: 100%;
  height: 100%;
  font-size: 62.5%;
}
body::before {
  content: "";
  display: block;
  position: fixed;
  top: 0;
  z-index: -1;
  width: 100%;
  height: 100vh;
  background-image: url(../images/bg_sp.jpg);
  background-repeat: repeat-y;
  background-size: contain;
}
.pop_wrap {
  width: 100%;
}
img {
  width: 100%;
  height: auto;
}
#pop_caption {
  line-height: 25px;
  padding: 10px;
  max-width: 1200px;
  margin: 0 auto;
  border: 1px solid #f39800;
  box-sizing: border-box;
}
#pop_caption, .list_caption p {
  color: #fff;
  background: linear-gradient(#000, #e60012);
}
#pop_caption p {
  font-size: 1.6rem;
}
#pop_list_box {
  list-style-type: none;
  padding-top: 15px;
  max-width: 1200px;
  width: 100%;
  height: auto;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 15px 10px;
}
#pop_list_box li {
  background: #fff;
  border: 1px solid #f39800;
  width: calc((100% - 10px * 1) / 2);
}
#pop_list_box li a {
  display: block;
}
.list_img {
  background-color: #fff;
  text-align: center;
  padding-top: 5px;
  padding-bottom: 5px;
  cursor: pointer;
}
.list_caption p {
  line-height: 30px;
  text-align: center;
  font-size: 1.3rem;
}
.attention {
  background-color: #fff;
  position: relative;
  width: 100%;
  height: auto;
  padding: 10px 10px 0 10px;
  margin: 0 auto;
  margin-top: 4.5%;
  color: #333;
  border: 2px solid #030303;
  font-size: 1.4rem;
}
.attention h1 {
  margin: 0;
  padding: 0;
  margin-bottom: 10px;
  border-bottom: 1px solid #000;
  color: #333;
}
.attention h2 {
  border-bottom: 1px dotted #000;
}
.attention li {
  list-style-type: decimal;
  margin-bottom: 5px;
}
.attention p:nth-child(3) {
  margin-bottom: 10px;
}
.dl_content {
  padding-top: 25px;
  padding-right: 2.5%;
  padding-left: 2.5%;
}
.pop_title {
  width: 68.4%;
  margin: 0 auto;
  padding-top: 4.5%;
}
.pop_button {
  width: 24%;
  height: auto;
  margin: 10px auto;
}
.pop_content {
  padding-bottom: 2.5%;
  padding-right: 2.5%;
  padding-left: 2.5%;
}
.top_btn {
  width: 39%;
  margin: 15px auto 0;
}
.material {
  position: relative;
  cursor: pointer;
}
.spinner_box {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  background: rgba(255, 255, 255, .6);
  display: none;
}
.spinner {
  width: 30px;
  height: 30px;
  border: 4px solid #1a73e8;
  border-top: 4px solid transparent;
  border-radius: 50%;
  animation: spin .8s linear 0s infinite;
  right: 0;
  left: 0;
  top: 0;
  bottom: 0;
  margin: auto;
  position: absolute;
}
@keyframes spin {
  from {
    transform: rotate(0);
  }
  to {
    transform: rotate(359deg);
  }
}
.footer {
  margin-top: 30px;
}
@media screen and (min-width: 769px) {
  body::before {
    background: url(../images/bg.jpg) center no-repeat;
    background-size: cover;
    background-repeat: no-repeat;
  }
  nav {
    position: fixed;
    margin: 0 auto;
    width: 100%;
    height: 52px;
    z-index: 1;
    background-image: url("../images/nav_back.png");
    background-repeat: repeat-x;
    background-size: contain;
  }
  nav ul {
    width: 100%;
    max-width: 1000px;
    height: 4.33vw;
    max-height: 52px;
    z-index: 1;
    position: relative;
  }
  nav li {
    width: 20%;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    transition-duration: .13s;
    transition-property: opacity;
  }
  nav li:hover {
    opacity: .8;
  }
  .pop_inner {
    position: relative;
    max-width: 1920px;
    min-height: calc(100vh - 56px);
    height: 100%;
    overflow: hidden;
    right: 0;
    left: 0;
    margin: 0 auto;
    padding-top: 62px;
  }
  .pop_content, .dl_content {
    max-width: 1100px;
    margin: 0 auto 10px;
    padding: 0 20px;
    overflow: hidden;
  }
  .pop_title {
    width: 380px;
    padding-top: 0;
  }
  .attention {
    margin: 15px auto 0;
  }
  .list_caption p {
    font-size: 1.3vw;
  }
  #pop_list_box li {
    width: calc((100% - 10px * 3) / 4);
  }
  .pop_button {
    max-width: 180px;
    height: auto;
    margin: 0 auto 10px;
  }
  .pop_button a:hover {
    transition-duration: 0.13s;
    opacity: 0.8;
  }
  .gotop, .pop, .share, .copyright {
    padding-bottom: 0;
  }
  .copyright {
    /*margin-left: 62.3%;*/
  }
  .top_btn {
    position: relative;
    max-width: 1100px;
    right: 0;
    left: 0;
    margin: 0 auto 10px;
    width: 100%;
    filter: none;
  }
  .top_btn a {
    max-width: 145px;
    position: relative;
    left: 10px;
  }
  .footer {
    margin-top: 0;
  }
}
@media screen and (min-width:769px) and (max-width: 1200px) {
  .attention {
    margin-top: 1.66vw;
  }
  .pop_inner {
    padding-top: 6vw;
    min-height: calc(100vh - 4.66vw);
  }
  nav {
    height: 4.33vw;
  }
}
@media screen and (min-width: 1057px) {
  .list_caption p {
    font-size: 1.4rem;
  }
  #pop_list_box li {
    width: calc((100% - 10px * 4) / 5);
  }
}
@media screen and (min-width:1201px) {
  nav li {
    max-width: 200px;
  }
}