html {
  font-size: 62.5%;
  font-family: sans-serif;
}

body,
h2,
h3,
ul,
li,
div,
p {
  margin: 0;
  padding: 0;
}

ul {
  list-style: none;
}

header {
  text-align: center;
}

.h2-wrap {
  background-color: #7296c6;
  padding: 5px 15px;
}

h2 {
  font-size: 2rem;
  color: #fff;
  letter-spacing: 1px;
  text-align: left;
}

h3 {
  font-size: 1.6rem;
  letter-spacing: 1px;
  padding: 1.5rem 1.5rem 1.5rem 12.7rem;
  text-indent: -8.5rem;
  text-align: left;
  display: inline-block;
}

.slide_back {
  background-color: #bccde4;
  padding: 30px 15px 50px;
  margin-bottom: 30px;
}

.slide_wrap {
  max-width: 1024px;
  margin: auto;
}

.slide_flex {
  display: flex;
  align-items: center;
  margin-bottom: 10px;
  width: 76vw;
  margin-left: auto;
  margin-right: auto;
}

.slide_text1 {
  white-space: nowrap;
  font-size: 1.8rem;
  font-weight: bold;
  color: #26588e;
  background-color: #faf356;
  padding: 7px 15px;
  border-top-left-radius: 15px;
  border-top-right-radius: 15px;
  margin-right: 15px;
  line-height: 1;
}
.slide_text2 {
  font-size: 1.6rem;
}

.pp_wrap {
  position: relative;
  width: 100%;
  height: 0;
  padding-top: calc(56.25% + 42px);
}

.pp_wrap iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.pc_flex {
  max-width: 1057px;
  margin: auto 15px;
}

.video-list li:not(:first-child) {
  margin-top: 30px;
}

.video_text {
  font-size: 2.25rem;
  font-weight: bold;
  color: #26588e;
  background-color: #faf356;
  padding: 7px 15px;
  border-top-left-radius: 15px;
  border-top-right-radius: 15px;
  line-height: 1;
  display: inline-block;
  margin-bottom: 10px;
}

.block_flex {
  display: flex;
  align-items: flex-start;
  flex-flow: column;
}

.download_text1 {
  font-size: 2rem;
  font-weight: bold;
  color: #26588e;
  background-color: #faf356;
  padding: 7px 15px;
  border-top-left-radius: 15px;
  border-top-right-radius: 15px;
  line-height: 1;
  margin-bottom: 10px;
  margin-right: 15px;
  white-space: nowrap;
}

.download_text2 {
  font-size: 1.6rem;
  font-weight: bold;
  color: #FC3229;
  padding-bottom: 15px;
}

.download_list li {
  background-color: #cccccc;
  padding: 15px;
  border-radius: 15px;
}

.download_list li:not(:last-child) {
  margin-bottom: 15px;
}

.button_flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  line-height: 1.5;
}

.dl-link {
  text-decoration: none;
  font-weight: bold;
  display: flex;
  align-items: center;
  border-radius: 10px;
  padding-left: 10px;
  margin-right: 15px;
  width: 100%;
}

.data-name {
  font-size: 1.4rem;
  margin-right: auto;
}

.data-name02 {
  color: #26588E;
}

.data-size {
  font-size: 1.2rem;
  padding-right: 10px;
}

.dl-icon {
  background-color: #26588e;
  padding: 5px 10px;
  border-top-right-radius: 10px;
  border-bottom-right-radius: 10px;
  line-height: 1;
  height: 100%;
}

.dl-icon img {
  max-height: 24px;
}

.bg_white {
  background-color: #fff;
  color: #26588e;
}

.preview_button {
  flex-basis: 90px;
}

.preview-none {
  opacity: 0;
  pointer-events: none;
}

.preview_button a {
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview_button img {
  width: 100%;
  max-width: 70px;
}

.download_text {
  font-size: 1.3rem;
}

.download_all {
  margin-top: 10px;
  text-align: right;
}

.download_all img {
  width: 45%;
  max-width: 350px;
}

.challenge-wrap {
  margin: 50px auto 0;
  padding-bottom: 80px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.challenge-text1 {
  font-size: 2.2rem;
  font-weight: bold;
  padding-left: 32px;
  position: relative;
  letter-spacing: 1px;
  color: #DEDEDE;
}

.challenge-text1 img {
  position: absolute;
  top: 0;
  left: 0;
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.challenge-text2 {
  font-size: 1.6rem;
  letter-spacing: 1px;
  color: #DEDEDE;
}

.challenge-text3 {
  padding-top: 20px;
  font-size: 1.6rem;
  font-weight: bold;
  color: #FC3229;
  letter-spacing: 0;
}

.dl-link:hover,
.preview_button:hover,
.download_all:hover {
  opacity: 0.6;
}

.open-fullscreen-wrap {
  width: 76vw;
  margin: 15px auto 0;
  text-align: right;
}

.open-fullscreen {
  display: inline-block;
  font-size: 16px;
  font-weight: bold;
  border-radius: 15px;
  color: #fff;
  background-color: #26588e;
  line-height: 1;
  padding: 5px 0;
}

.open-fullscreen a {
  display: block;
  color: #fff;
  text-decoration: none;
  padding: 5px 15px;
}

.open-fullscreen:hover {
  opacity: 0.6;
}

@media screen and (max-width: 899px) {
  .video_block {
    margin-bottom: 30px;
  }
}

@media screen and (max-width: 1053px) {
  .slide_text2,
  .download_text2 {
    display: none;
  }
}

@media screen and (min-width: 600px) {
  h2 {
    font-size: 2.8rem;
  }

  h3 {
    font-size: 2rem;
    padding: 1.5rem 1.5rem 1.5rem 14.5rem;
    text-indent: -10.5rem;
  }

  .slide_text1 {
    font-size: 2.25rem;
  }

  .download_text1 {
    font-size: 2.25rem;
  }

  .data_name {
    font-size: 2rem;
  }

  .data_name span:nth-child(2) {
    font-size: 1.5rem;
  }

  .preview_button img {
    width: 90px;
  }

  .challenge-text1 {
    font-size: 3rem;
    padding-left: 40px;
  }

  .challenge-text1 img {
    top: 0;
    left: 0;
    width: 40px;
    height: 40px;
  }

  .challenge-text2 {
    font-size: 1.8rem;
  }
}

@media screen and (min-width: 900px) {
  h2 {
    font-size: 3rem;
  }

  h3 {
    font-size: 2.2rem;
    padding: 1.5rem 1.5rem 1.5rem 16.5rem;
    text-indent: -11.5rem;
  }

  .pc_flex {
    display: flex;
    align-items: flex-start;
  }

  .video_block,
  .download_block {
    flex-basis: calc(50% - 15px);
  }

  .video_block {
    margin-right: 30px;
  }

  .challenge-text1 {
    font-size: 4rem;
    padding-left: 50px;
  }

  .challenge-text1 img {
    top: 0;
    left: 0;
    width: 50px;
    height: 50px;
  }

  .challenge-text2 {
    font-size: 2.2rem;
  }
}

@media screen and (min-width: 1054px) {
  h2 {
    width: 76vw;
    margin: auto;
  }

  .pc_flex {
    margin: auto auto;
  }

  .data-name {
    font-size: 1.6rem;
  }

  .data-size {
    font-size: 1.4rem;
  }
}

/* 動画埋め込み */
.plyr__control--overlaid {
  background-color: #b0b7b9;
}

.plyr__controls {
  flex-wrap: wrap;
}

.plyr__control {
  margin-right: 0 !important;
}

.plyr__time--duration {
  margin-right: auto;
}

.plyr__progress__container {
  order: 7;
  flex-basis: 100% !important;
  width: 100%;
}
/* 動画埋め込みend */


.link-off {
  pointer-events: none;
  color: #DEDEDE;
}
.off-icon {
  background-color: #DEDEDE;
}

.dl-sample {
  padding-bottom: 5px;
  font-size: 1.5rem;
  font-weight: bold;
  color: #26588E;
}