@charset "UTF-8";
body {
  font-size: 16px;
  color: #4d4d4d;
  background: #fff;
  min-height: 100vh;
}

ul {
  list-style: none;
}

.container-fluid {
  max-width: 1280px;
}

.clear-decoration {
  border: none;
  /* 枠線を消す */
  outline: none;
  /* クリックしたときに表示される枠線を消す */
  background: transparent;
  /* 背景の灰色を消す */
}

.is-hide {
  display: none;
}

.is-block {
  display: block !important;
}

.absolute-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
}

.fixed-center {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
}

.overlay {
  display: none;
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
}

.text-deco-none {
  text-decoration: none !important;
}

.user-img-wrap {
  position: relative;
}

.thumbnail {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  background: #fff;
  border-radius: 50%;
}

.mypage-wrap {
  background: #fff;
  text-align: center;
  box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.08);
}

.w-280 {
  width: 280px;
}

.slider-prev, .slider-next {
  position: absolute;
  top: 50%;
  display: block;
  width: 20px;
  height: 25px;
  padding: 0;
  transform: translate(0, -50%);
  cursor: pointer;
  color: #ffa40c;
  font-weight: bold;
}

.slider-prev {
  left: -25px;
}

.slider-next {
  right: -25px;
}

.slick-track {
  margin-left: 0;
}

.category-title {
  color: #ffa40c;
  font-size: 1.2rem;
  font-weight: bold;
  letter-spacing: 0.1rem;
  margin-bottom: 16px;
}

.chapter-name {
  color: #ffa40c;
}

.next-link {
  color: #ffa40c;
}

.video {
  width: 100%;
  height: calc(100vw * 9 / 16);
}

.bg-orange {
  background: #FA820A;
}

.text-orange {
  color: #FA820A;
}

.border-orange {
  border: 1px solid #FA820A;
}

@media screen and (min-width: 1324px) {
  .video {
    width: 900px;
    height: 520px;
  }
}
@media screen and (min-width: 768px) and (max-width: 1323px) {
  .video {
    width: 100%;
    height: calc((100vw - 300px) * 9 / 16);
  }
}