body {
  background: #37c0f4;
}

.artra-wrapper {
  width: 800px;
  margin: 0 auto;
  padding: 0;
}

.artra-wrapper .artra-main-block {
  width: 100%;
  padding: 60px 0;
}

.artra-wrapper .artra-main-block .main-img {
  width: 70%;
  height: auto;
  display: block;
  margin: 0 auto;
}

.artra-wrapper .inner {
  padding: 0 20px;
}

.artra-wrapper .border {
  background: #fff;
  height: 10px;
  width: 200px;
  margin: 50px 0;
  border: 5px solid #000;
  box-shadow: 8px 8px 0 rgb(0, 0, 0);
}

.artra-wrapper h2.title {
  font-size: 3rem;
  color: #fff;
  font-weight: bold;
  text-align: left;
  line-height: 1.6;
}

.artra-wrapper h2.title span {
  background: #fff;
  border: 3px solid #000;
  box-shadow: 4px 4px 0 rgb(0 0 0);
  color: #000;
  margin: 0 6px;
  padding: 0 6px;
}

.artra-wrapper .description {
  font-size: 1.4rem;
  color: #fff;
  font-weight: bold;
  text-align: left;
  line-height: 1.6;
  margin: 15px 0 0 0;
  opacity: 0.6;
}

.artra-wrapper .area {
  font-size: 2.3rem;
  color: #fff;
  font-weight: bold;
}

.artra-wrapper .area-text {
  font-size: 1.6rem;
  color: #fff;
  font-weight: bold;
  text-align: left;
  line-height: 1.5;
  margin: 8px 0 0 0;
}

.artra-wrapper .con-title {
  font-size: 2.6rem;
  color: #fff;
  line-height: 1.3;
}

.artra-wrapper .con-img {
  width: 100%;
  height: auto;
  display: block;
  margin: 15px 0;
}

.artra-wrapper .con-img.block {
  border: 8px solid #000;
  box-sizing: border-box;
  box-shadow: 14px 14px 0 rgb(0, 0, 0);
}

.artra-wrapper .item-name {
  font-size: 1.4rem;
  line-height: 1.5;
  color: #000;
  font-weight: bold;
  margin: 18px 0 0 0;
  display: block;
  text-decoration: underline;
}

.artra-wrapper .item-date {
  font-size: 1.3rem;
  color: #000;
  font-weight: bold;
  line-height: 1.5;
}

.artra-wrapper .normal-text {
  font-size: 1.4rem;
  color: #fff;
  line-height: 1.6;
  margin: 25px 0 0 0;
  font-weight: bold;
}

.artra-wrapper .artist-box {
  margin: 20px 0 50px 0;
}

.artra-wrapper .artist-box .item-img {
  width: 100%;
  height: auto;
  display: block;
  margin: 12px 0 0;
  border: 8px solid #000;
  box-sizing: border-box;
  box-shadow: 14px 14px 0 rgb(0, 0, 0);
}

.artra-wrapper .prof-img {
  width: 50px;
  height: 50px;
  border-radius: 100px;
  overflow: hidden;
}

.artra-wrapper .prof-img img {
  width: 100%;
  height: auto;
}

.artra-wrapper .prof-name {
  font-size: 1.5rem;
  color: #fff;
  line-height: 1.8;
  font-weight: bold;
}

.artra-wrapper .prof-sns {
  font-size: 1.4rem;
  color: #fff;
  font-weight: bold;
  text-decoration: underline;
  display: block;
}

.artra-wrapper .last-text {
  font-size: 1.1rem;
  color: #fff;
  line-height: 1.6;
  margin: 25px 0 0 0;
}

.share-box {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 99;
}

.share-box ul {
  display: inline-block;
}

.share-box ul li {
  display: inline-block;
  margin: 10px 0 0 5px;
}


/* area-tab */

.tab-radio { /* radio */
  display: none;
}

/* タブメニュー */
.tab-menu {
  display: flex;
  border-bottom: 8px solid #000;
  margin: 25px 0 20px 0;
}

.tab-menu__item {
  box-sizing: border-box;
  padding: 0 6px 0 0;
}

.tab-trigger { /* label */
  text-align: center;
  cursor: pointer;
  display: block;
  padding: 12px 14px 10px 14px;
  border-bottom: 0;
  border-radius: 5px 5px 0 0;
  overflow: hidden;
  background: #fff;
  color: #000;
  position: relative;
  font-size: 2rem;
  font-weight: bold;
  border: 6px solid #000;
  border-bottom: none;
  line-height: 1.2;
}

.tab-trigger span {
  font-size: 1.3rem;
  color: #000;
  font-weight: bold;
}

#tab01:checked ~ .tab-menu #tabTrigger01,
#tab02:checked ~ .tab-menu #tabTrigger02,
#tab03:checked ~ .tab-menu #tabTrigger03,
#tab04:checked ~ .tab-menu #tabTrigger04,
#tab05:checked ~ .tab-menu #tabTrigger05,
#tab06:checked ~ .tab-menu #tabTrigger06{
  background: #000;
  color: #fff;
}

#tab01:checked ~ .tab-menu #tabTrigger01 span,
#tab02:checked ~ .tab-menu #tabTrigger02 span,
#tab03:checked ~ .tab-menu #tabTrigger03 span,
#tab04:checked ~ .tab-menu #tabTrigger04 span,
#tab05:checked ~ .tab-menu #tabTrigger05 span,
#tab06:checked ~ .tab-menu #tabTrigger06 span {
  color: #fff;
}

/* タブコンテンツ */
.tab-content {
}
.tab-content__item {
  box-sizing: border-box;
  display: none;
  text-align: left;
}

#tab01:checked ~ .tab-content #tabTarget01,
#tab02:checked ~ .tab-content #tabTarget02,
#tab03:checked ~ .tab-content #tabTarget03,
#tab04:checked ~ .tab-content #tabTarget04,
#tab05:checked ~ .tab-content #tabTarget05,
#tab06:checked ~ .tab-content #tabTarget06{
  display: block;
  animation: fade 0.5s ease;
}

@keyframes fade {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}