@charset "UTF-8";
@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&display=swap");
/*-----------------------------------------------
	Browser Reset
-----------------------------------------------*/
html,
body {
  margin: 0px;
  padding: 0px;
  -webkit-text-size-adjust: none;
}

h1, h2, h3, h4, h5, h6, pre, address, em, strong, th, ins {
  font-size: 100%;
  font-weight: normal;
}

h1, h2, h3, h4, h5, h6, pre, address, ul, ol, li, dl, dt, dd, form, legend, p {
  margin: 0;
  padding: 0;
}

table, tr, td, th {
  margin: 0;
  padding: 0;
  border-collapse: collapse;
  border: 0;
}

img {
  border: 0;
  vertical-align: bottom;
}

ul,
ul, li {
  list-style-type: none;
}

header, section, footer, aside, nav, article, figure, main {
  margin: 0;
  padding: 0;
  display: block;
}

body, th, td {
  word-wrap: break-word;
}

button,
input,
select,
textarea {
  font-family: inherit;
}

/*---------------------------------------
    Common
---------------------------------------*/
.floatLeft {
  float: left;
}

.floatRight {
  float: right;
}

.clearFloat {
  clear: both;
}

.left {
  text-align: left !important;
}

.right {
  text-align: right !important;
}

.center {
  text-align: center !important;
}

.bold {
  font-weight: bold !important;
}

.normal {
  font-weight: normal !important;
}

/* Margin top */
.mt0 {
  margin-top: 0px !important;
}

.mt5 {
  margin-top: 5px !important;
}

.mt10 {
  margin-top: 10px !important;
}

.mt15 {
  margin-top: 15px !important;
}

.mt20 {
  margin-top: 20px !important;
}

.mt25 {
  margin-top: 25px !important;
}

.mt30 {
  margin-top: 30px !important;
}

/* Margin Bottom */
.mb1em {
  margin-bottom: 1em !important;
}

.mb0 {
  margin-bottom: 0px !important;
}

.mb5 {
  margin-bottom: 5px !important;
}

.mb10 {
  margin-bottom: 10px !important;
}

.mb15 {
  margin-bottom: 15px !important;
}

.mb20 {
  margin-bottom: 20px !important;
}

.mb25 {
  margin-bottom: 25px !important;
}

.mb30 {
  margin-bottom: 30px !important;
}

/* Margin Right */
.mr0 {
  margin-right: 0px !important;
}

html,
body {
  height: 100%;
}

body {
  font-family: "Noto Sans JP", "メイリオ", Meiryo, "ヒラギノ角ゴ Pro", "Hiragino Kaku Gothic Pro", "ＭＳ Ｐゴシック", "MS PGothic", sans-serif;
  font-size: 14px;
  color: #999999;
  line-height: 1.5;
  display: flex;
  flex-direction: column;
}

*,
*::before,
*::after {
  background-repeat: no-repeat;
  background-position: 0 0;
}

a {
  color: #505050;
  text-decoration: none;
}

@media (any-hover: hover) {
  a:hover {
    text-decoration: underline;
  }
}

.ie a:hover {
  text-decoration: underline;
}

nav,
label {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  -o-user-select: none;
  user-select: none;
}

table {
  width: 100%;
}

iframe {
  width: 100%;
  border: none;
}

input[type="text"],
input[type="password"],
select,
textarea {
  font-size: inherit;
  color: inherit;
  width: 100%;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  -ms-box-sizing: border-box;
  -o-box-sizing: border-box;
  box-sizing: border-box;
}

textarea {
  resize: none;
  line-height: inherit;
}

.disabled {
  opacity: 0.7;
  background-color: #f5f5f5;
  pointer-events: none;
  background-image: none !important;
}

.title01 {
  font-size: 20px;
  font-weight: 700;
  color: #505050;
}

@media screen and (max-width: 767px) {
  .title01 + .button01 {
    margin-top: 19px;
  }
}

.button01 a {
  text-align: center;
  display: block;
  background-image: -webkit-linear-gradient(90deg, #f8f8f8 39%, #ffffff 60%);
  background-image: -moz-linear-gradient(90deg, #f8f8f8 39%, #ffffff 60%);
  background-image: -o-linear-gradient(90deg, #f8f8f8 39%, #ffffff 60%);
  background-image: linear-gradient(0deg, #f8f8f8 39%, #ffffff 60%);
  border: 1px solid #dcdcdc;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  -ms-box-sizing: border-box;
  -o-box-sizing: border-box;
  box-sizing: border-box;
}

.button01 a span {
  padding-left: 30px;
  background-size: 18px auto;
  background-position: left center;
}

@media (any-hover: hover) {
  .button01 a:hover {
    text-decoration: none;
    background-image: none;
    background-color: #ffffff;
  }
  .button01 a:hover span {
    opacity: 0.7;
  }
}

.ie .button01 a:hover {
  text-decoration: none;
  background-image: none;
  background-color: #ffffff;
}

.ie .button01 a:hover span {
  opacity: 0.7;
}

.button01 a {
  line-height: 38px;
  width: 120px;
  height: 40px;
  border-radius: 20px;
}

@media screen and (min-width: 768px) {
  .button01 a {
    position: absolute;
    top: 0;
    bottom: 0;
    right: 0;
    margin-top: 0;
    margin-bottom: 0;
  }
}

@media screen and (max-width: 767px) {
  .button01 a {
    margin-left: auto;
  }
}

.button01 a span {
  background-image: url("../images/btn_icon_help.png");
}

.button02 {
  display: flex;
}

.button02 a {
  text-align: center;
  display: block;
  background-image: -webkit-linear-gradient(90deg, #f8f8f8 39%, #ffffff 60%);
  background-image: -moz-linear-gradient(90deg, #f8f8f8 39%, #ffffff 60%);
  background-image: -o-linear-gradient(90deg, #f8f8f8 39%, #ffffff 60%);
  background-image: linear-gradient(0deg, #f8f8f8 39%, #ffffff 60%);
  border: 1px solid #dcdcdc;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  -ms-box-sizing: border-box;
  -o-box-sizing: border-box;
  box-sizing: border-box;
}

.button02 a span {
  padding-left: 30px;
  background-size: 18px auto;
  background-position: left center;
}

@media (any-hover: hover) {
  .button02 a:hover {
    text-decoration: none;
    background-image: none;
    background-color: #ffffff;
  }
  .button02 a:hover span {
    opacity: 0.7;
  }
}

.ie .button02 a:hover {
  text-decoration: none;
  background-image: none;
  background-color: #ffffff;
}

.ie .button02 a:hover span {
  opacity: 0.7;
}

@media screen and (max-width: 767px) {
  .button02 {
    flex-wrap: wrap;
  }
}

.button02 > li.zoom {
  margin-right: 8px;
}

@media screen and (min-width: 768px) {
  .button02 > li.zoom {
    width: 104px;
  }
}

@media screen and (max-width: 767px) {
  .button02 > li.zoom {
    width: 31.8042813455657%;
    order: 2;
  }
}

.button02 > li.zoom span {
  background-image: url("../images/btn_icon_expansion.png");
}

.button02 > li.zoom span::after {
  content: "拡大";
}

.slideFullscreen .button02 > li.zoom span {
  background-image: url("../images/btn_icon_shrink.png");
}

.slideFullscreen .button02 > li.zoom span::after {
  content: "縮小";
}

@media screen and (min-width: 768px) {
  .button02 > li.sync {
    width: 160px;
  }
}

@media screen and (max-width: 767px) {
  .button02 > li.sync {
    flex-grow: 1;
    order: 3;
  }
}

.button02 > li.sync span {
  background-image: url("../images/btn_icon_sync_off.png");
}

.button02 > li.sync span::after {
  content: "off";
  margin-left: 5px;
}

.button02 > li.sync.on span {
  background-image: url("../images/btn_icon_sync_on.png");
}

.button02 > li.sync.on span::after {
  content: "on";
}

.button02 > li.prevNext {
  flex-shrink: 0;
}

@media screen and (min-width: 768px) {
  .button02 > li.prevNext {
    width: 320px;
    margin-left: auto;
  }
}

@media screen and (max-width: 767px) {
  .button02 > li.prevNext {
    width: 100%;
    margin-bottom: 16px;
    order: 1;
  }
}

.button02 > li.prevNext ul {
  display: flex;
}

.button02 > li.prevNext li.prev {
  width: 50%;
}

.button02 > li.prevNext li.prev a {
  border-top-left-radius: 4px;
  border-bottom-left-radius: 4px;
  border-right: none;
}

.button02 > li.prevNext li.prev span {
  background-image: url("../images/btn_icon_prev.png");
}

.button02 > li.prevNext li.next {
  width: 50%;
}

.button02 > li.prevNext li.next a {
  border-top-right-radius: 4px;
  border-bottom-right-radius: 4px;
}

.button02 > li.prevNext li.next span {
  background-image: url("../images/btn_icon_next.png");
}

.button02 > li a {
  line-height: 50px;
}

.button02 > li > a {
  border-radius: 4px;
}

.playerBlock {
  position: relative;
  flex-shrink: 0;
}

.playerBlock .player {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.playerBlock::before {
  content: "";
  display: block;
  padding-top: 56.25%;
}

.playerBlock.aspect4-3::before {
  padding-top: 75%;
}

.slideBlock {
  position: relative;
  flex-shrink: 0;
  border: 1px solid #dcdcdc;
}

@media screen and (max-width: 767px) {
  .slideBlock {
    border-left: none;
    border-right: none;
  }
}

.slideBlock::before {
  content: "";
  display: block;
  padding-top: 75%;
}

.slideBlock .slide {
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.slideBlock .slide img {
  flex-shrink: 0;
  max-width: 100%;
  max-height: 100%;
}

@media screen and (min-width: 768px) {
  .slideFullscreen .slideBlock {
    height: calc(100% - (24px * 2) - 52px);
  }
}

@media screen and (max-width: 767px) {
  .slideFullscreen .slideBlock {
    height: calc(100% - (16px * 2) - 120px);
  }
}

.slideFullscreen .slideBlock::before {
  padding-top: 0;
}

@media screen and (min-width: 768px) {
  .slideController {
    margin-top: 24px;
  }
  .slideFullscreen .slideController {
    margin: 24px;
  }
}

@media screen and (max-width: 767px) {
  .slideController {
    margin-top: 16px;
    margin-left: 24px;
    margin-right: 24px;
  }
}

.block01 {
  margin-top: 16px;
}

@media screen and (min-width: 768px) {
  .block01 {
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }
}

@media screen and (max-width: 767px) {
  .block01 {
    margin: 24px;
  }
}

.block01 .title {
  color: #ffffff;
  line-height: 32px;
  padding-left: 24px;
  border-top-left-radius: 4px;
  border-top-right-radius: 4px;
  background-color: #757575;
}

.block01 .tab ul {
  display: flex;
}

.block01 .tab li {
  text-align: center;
  line-height: 30px;
  width: 33.33%;
  flex-grow: 1;
  border-top-left-radius: 4px;
  border-top-right-radius: 4px;
  background-color: #ffffff;
  cursor: pointer;
  border-top: 1px solid #dcdcdc;
  border-left: 1px solid #dcdcdc;
  border-right: 1px solid #dcdcdc;
}

.block01 .tab li + li {
  margin-left: 1px;
}

.block01 .tab li:hover, .block01 .tab li.current {
  color: #ffffff;
  border-color: #757575;
  background-color: #757575;
}

@media (any-hover: hover) {
  .block01 .tab li:hover {
    color: #ffffff;
    border-color: #757575;
    background-color: #757575;
  }
}

.ie .block01 .tab li:hover {
  color: #ffffff;
  border-color: #757575;
  background-color: #757575;
}

.block01 .lecturer {
  padding: 20.5px 24px;
  background-color: #f5f5f5;
  overflow-y: auto;
  color: #505050;
}

@media screen and (min-width: 768px) {
  .block01 .lecturer {
    min-height: 51px;
  }
}

.block01 .list {
  padding: 20.5px 24px;
  background-color: #f5f5f5;
  overflow-y: auto;
}

@media screen and (min-width: 768px) {
  .block01 .list {
    min-height: 51px;
  }
}

.block01 .list li {
  text-indent: -1em;
  padding: 2px 2px 2px 1em;
}

.block01 .list li::before {
  content: "・";
}

.block01 .list li.doc a::after {
  content: "";
  display: inline-block;
  width: 18px;
  height: 14px;
  margin-left: 8px;
  background-image: url("../images/btn_icon_dl.png");
  background-size: contain;
}

.block01 .list li.current {
  background-color: #ffffff;
}

.block01 .list li + li {
  margin-top: 5px;
}

@media screen and (min-width: 768px) {
  .block01-1 {
    flex-shrink: 0;
    max-height: 160px;
  }
}

@media screen and (max-width: 767px) {
  .block01-1 .list {
    max-height: 51px;
  }
}

@media screen and (min-width: 768px) {
  .block01-2 {
    flex-grow: 1;
  }
}

@media screen and (min-width: 768px) {
  .block01-2 .list {
    flex-grow: 1;
  }
}

@media screen and (max-width: 767px) {
  .block01-2 .list {
    max-height: 119px;
  }
}

.block01-2 .list li + li {
  margin-top: 13px;
}

/* --------------------------------------------------
	loading
-------------------------------------------------- */
.loading {
  min-height: 480px;
}

.loading > * {
  visibility: hidden !important;
}

.loading:after {
  content: "";
  display: block;
  position: fixed;
  margin: auto;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  border-top: 5px solid #e4e4e4;
  border-right: 5px solid #e4e4e4;
  border-bottom: 5px solid #e4e4e4;
  border-left: 5px solid #505050;
  -webkit-transform: translateZ(0);
  -ms-transform: translateZ(0);
  transform: translateZ(0);
  -webkit-animation: load8 1.1s infinite linear;
  animation: load8 1.1s infinite linear;
}

@-webkit-keyframes load8 {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}

@keyframes load8 {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}

/* --------------------------------------------------
	wrapper
-------------------------------------------------- */
#wrapper {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  -ms-box-sizing: border-box;
  -o-box-sizing: border-box;
  box-sizing: border-box;
}

@media screen and (min-width: 768px) {
  #wrapper {
    min-width: 1345px;
    max-width: 1920px;
    padding-left: 190px;
    padding-right: 190px;
    margin-left: auto;
    margin-right: auto;
  }
}

/* --------------------------------------------------
	header
-------------------------------------------------- */
@media screen and (min-width: 768px) {
  #header {
    position: relative;
    margin-top: 35px;
    margin-bottom: 35px;
    padding-right: 160px;
  }
}

@media screen and (max-width: 767px) {
  #header {
    margin: 19px 24px 24px;
  }
}

/* --------------------------------------------------
	main
-------------------------------------------------- */
#main {
  padding-bottom: 48px;
  flex-shrink: 0;
}

@media screen and (min-width: 768px) {
  #main {
    display: flex;
    justify-content: space-between;
  }
}

@media screen and (min-width: 768px) {
  #main .column1 {
    width: 32.454361054766734%;
    position: relative;
  }
}

@media screen and (min-width: 768px) {
  #main .column1-1 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
  }
}

@media screen and (min-width: 768px) {
  #main .column2 {
    width: 65.111561866125761%;
  }
}

.slideFullscreen #main .column2 {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #ffffff;
}

/* --------------------------------------------------
	footer
-------------------------------------------------- */
#footer {
  margin-top: auto;
  padding-top: 28.5px;
  padding-bottom: 29px;
  flex-shrink: 0;
  border-top: 1px solid #dcdcdc;
}

@media screen and (max-width: 767px) {
  #footer {
    padding-left: 24px;
    padding-right: 24px;
  }
}

#footer dl {
  color: #505050;
}

#footer dl::after {
  content: "";
  display: block;
  clear: both;
}

@media screen and (min-width: 768px) {
  #footer dt {
    float: left;
  }
}

@media screen and (max-width: 767px) {
  #footer dt + dd {
    margin-top: 7px;
  }
}

@media screen and (min-width: 768px) {
  #footer dd {
    margin-left: 5em;
  }
}

#footer .copyright {
  text-align: right;
  font-size: 12px;
  margin-top: 25.5px;
}