body {
  margin: 0;
  font-family: "Hiragino Sans", "Noto Sans JP", sans-serif;
  background-color: #fff;
}
img {
  width: 100%;
}
.toparea {
  position: relative;
}
.toparea__fade {
  height: 95vh;
  width: 100%;
  position: relative;
}
.toparea__fade .image {
  position: absolute;
  display: block;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  background-size: cover;
  background-position: center center;
  animation: image-switch-animation 15s infinite;
}
.src1 {
  background-image: url(../images/LP-Top01.png);
}
.src2 {
  background-image: url(../images/LP-Top02.png);
}
.src3 {
  background-image: url(../images/LP-Top03.png);
}
@keyframes image-switch-animation {
  0%   { opacity: 0; }
  6.66%  { opacity: 1; }   /* フェードイン */
  33.33% { opacity: 1; }   /* 表示 */
  40%  { opacity: 0; }     /* フェードアウト */
  100% { opacity: 0; }
}
.image:nth-of-type(1) {
  animation-delay: 0s;
}
.image:nth-of-type(2) {
  animation-delay: 5s;
}
.image:nth-of-type(3) {
  animation-delay: 10s;
}
.toparea__catchcopy {
  display: inline-block;
  writing-mode: vertical-rl;
  white-space: nowrap;
  max-width: 100%;
  font-size: 22px;
  position: absolute;
  padding: 10px 3px 15px;
  top: 20px;
  left: 50%;
  transform: translateX(-75%);
  font-family: "Zen Old Mincho", serif;
  font-weight: 400;
  font-style: normal;
  color: #000000;
  text-shadow: #ffffff 3px 0 10px,#ffffff 0 0 0.2em;
  backdrop-filter: blur(2px);
  mask-image:
  linear-gradient(to top, rgb(0 0 0 / 100%) 98%, rgb(0 0 0 / 0%) 100%),
  linear-gradient(to bottom, rgb(0 0 0 / 100%) 98%, rgb(0 0 0 / 0%) 100%),
  linear-gradient(to left, rgb(0 0 0 / 100%) 93%, rgb(0 0 0 / 0%) 100%),
  linear-gradient(to right, rgb(0 0 0 / 100%) 93%, rgb(0 0 0 / 0%) 100%);
  mask-composite: intersect;
}
.toparea__inner {
  position: absolute;
  bottom: 0;
  display: flex;
  justify-content: space-around;
  align-items: center;
  text-align: left;
  gap: 12px;
  padding: 18px 10px;
  background-color:rgba(255,255,255,0.6);
}
.toparea__inner__book {
  width: 30%;
  flex-shrink: 0;
}
.toparea__inner__title {
  font-size: 16px;
  font-weight: 400;
  border-bottom: solid 1px #333333;
  margin: 0;
  padding-bottom: 10px;
}
.toparea__inner__price {
  font-size: 12px;
  margin: 0;
  padding: 10px 0 15px;
}
.toparea__inner__btn a {
  background-color: #000000;
  color: #ffffff;
  padding: 12px 5px;
  display: block;
  min-width: 60%;
  text-align: center;
  text-decoration: none;
}
.copy{
  text-align: center;
  font-family: "Zen Old Mincho", serif;
  padding: 55px 3px;
  font-weight: 500;
  letter-spacing: -0.04em;
  font-size: 15px;
  line-height: 30px;
}
.bordertitle {
  text-align: center;
  font-family: "Zen Old Mincho", serif;
  display: inline-block;
  width: 100%;
  font-size: 26px;
  font-weight: 400;
  overflow: hidden;
  margin-bottom: 10px;
}
.bordertitle span {
  position: relative;
  display: inline-block;
  width: fit-content;
  background-color: #ffffff;
}
.bordertitle span:before,
.bordertitle span:after{
  content: "";
  display: block;
  width: 100vw;
  height: 1px;
  background-color: #d1d1d1;
  position: absolute;
  top: 50%;
  right: calc(100% + 10px);
}
.bordertitle span:after {
  right: initial;
  left: calc(100% + 10px);
}
.bordertitle+p {
  font-size: 16px;
  font-weight: 300;
  margin-top: 0;
  color: #333333;
}
.lefttitle,
.righttitle {
  position: relative;
  display: flex;
  height: 70px;
  flex-direction: column;
  justify-content: end;
  font-family: "Zen Old Mincho", serif;
  align-items: flex-start;
  padding-left: 34px;
  margin-bottom: 10px;
}
.righttitle {
  text-align: right;
  align-items: end;
  padding-left: 0;
  padding-right: 34px;
}
.lefttitle__number,
.righttitle__number {
  position: absolute;
  height: 70px;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 0;
}
.righttitle__number {
  left: initial;
  right: 10px;
}
.lefttitle__number img,
.righttitle__number img{
  height: 100%;
}
.lefttitle__sub,
.righttitle__sub {
  font-size: 14px;
  margin: 0;
  z-index: 1;
}
.lefttitle__main,
.righttitle__main {
  font-size: 24px;
  margin: 0;
  z-index: 1;
}
.naiyou {
  display: flex;
  justify-content: center;
}
.naiyou__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  list-style: none;
  text-align: left;
  font-size: 17px;
  font-family: "Zen Old Mincho", serif;
}
.naiyoulist span{
  font-size: 14px;
}
.leftimage {
  display: flex;
  text-align: left;
  justify-content: space-around;
  align-items: center;
  gap: 12px;
  padding: 18px 10px;
}
.leftimage__img {
  width: 35%;
  flex-shrink: 0;
}
.leftimage__text {
  font-size: 12px;
}
.leftimage__title {
  font-size: 17px;
  font-weight: 400;
  font-family: "Zen Old Mincho", serif;
  margin-top: 0;
  margin-bottom: 15px;
}
.leftimage__text p{
  margin: 0;
}
.graybox {
  margin: 18px 10px 25px;
  padding: 8px;
  padding-bottom: 4px;
  background-color: #f7f7f7;
  font-size: 16px;
  text-align: left;
  font-weight: 400;
  font-family: "Zen Old Mincho", serif;
}
.graybox span{
  font-size: 12px;
}
.graybox__right{
  text-align: right;
}
.works {
  position: relative;
}
.works__text-left,
.works__text-right {
  position: absolute;
  bottom: 30px;
  left: 15px;
  padding: 5px 8px;
  background-color: rgba(255, 255, 255, 0.6);
  text-align: left;
  max-width: 60%;
  font-size: 11px;
  line-height: 14px;
}
.works__text-right {
  text-align: right;
  left: initial;
  right: 15px;
  text-align: right;
}
.works__title {
  font-size: 15px;
  font-family: "Zen Old Mincho", serif;
  margin: 0;
  margin-bottom: 5px;
}
.works__title span{
  font-size: 14px;
}
.lp-visual {
  padding:  0;
  background: #C9B797;
}
.lp-visual__inner {
  text-align: center;
  background-color: #ffffff;
}
.lp-visual__img {
  width: 100%;
  height: auto;
  display: block;
}
/* 購入ボタン */
.lp-visual__btnarea {
  padding: 40px 0;
  background-color: #ffffff;
  width: 100%;
}
.copyright {
  font-size: 12px;
  margin-bottom: 0;
}
.lp-visual__btnarea+.copyright {
  margin-top: -35px;
}
.lp-visual__btn,
.lp-visual__btn-wide{
  display: inline-block;
  border: solid 1px #333333;
  background: #333333;
  color: #fff;
  padding: 0.8em 10px;
  min-width: 60%;
  font-size: 18px;
  text-decoration: none;
  transition: opacity 0.3s;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.25);
}
.lp-visual__btn-wide{
  width: 100%;
  padding: 1.2em 0px;
}
.lp-visual__btn:nth-of-type(n+2),
.lp-visual__btn-wide:nth-of-type(n+2) {
  border-top: solid 1px #ffffff;
}

.lp-visual__btn:hover,
.lp-visual__btn-wide:hover {
  border: solid 1px #000000;
  background-color: #ffffff;
  color: #000000;
}
    /* PC時 */
@media screen and (min-width: 768px) {
  .lp-visual__inner {
    width: 60%;
    max-width: 700px;
    margin: 0 auto;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.25);
  }
  .lp-visual__btn {
    padding: 1.4em 10px;
    min-width: 40%;
  }
}
/* スマホ：中央下 */
/* .lp-visual__btn {
} */
/* PC：右下寄り */
/* @media screen and (min-width: 768px) {
  .lp-visual__btn {
    left: auto;
    right: 12%;
    bottom: 10%;
    transform: none;
  }
} */
/* 裏テキスト（SEO・スクリーンリーダー用） */
.lp-visual__text {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  z-index: -1;
}