@charset "utf-8";

body,
html {
  overflow-x: hidden;
}

body {
  background-color: #fff;
  font-family: "Zen Kaku Gothic New", serif;
  font-weight: 400;
  font-style: normal;
  line-height: 2em;
  color: #4b4242;
}
@keyframes fadeIn {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

@-webkit-keyframes fadeIn {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
img {
  vertical-align: bottom;
}
a img {
  -webkit-transition: 0.8s;
  -moz-transition: 0.8s;
  -o-transition: 0.8s;
  -ms-transition: 0.8s;
  transition: 0.8s;
}
a img:hover {
  opacity: 0.6;
  filter: alpha(opacity=60);
  -moz-opacity: 0.6;
}

#content_wrapper {
  width: 100%;
  max-width: 750px;
  margin: 0 auto;
  overflow: hidden;
}
#content_wrapper img {
  width: 100%;
  height: auto;
}

/*BTN*/

.btn {
  display: inline-block;
  animation: fuwafuwa 1.5s ease-in-out infinite;
  transition: transform 0.3s ease;
  width: 82%;
  margin: 0 9%;
}

@keyframes fuwafuwa {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

/* 共通設定（任意） */
* {
  box-sizing: border-box;
}

/* アコーディオン全体 */
.accordion {
  width: 100%;
  max-width: 750px;
  margin: 0 auto;
  box-sizing: border-box;
}

/* チェックボックスは非表示 */
.accordion input[type="checkbox"] {
  display: none;
}

/* アコーディオン開閉ボタン */
.accordion-btn {
  position: relative;
  display: flex;
  align-items: center;
  cursor: pointer;
}

/* 線アイコンの位置とサイズ */
.accordion-btn .icon {
  position: absolute;
  top: 27px;
  right: 48px;
  width: 20px;
  height: 20px;
}

/* 線アイコン：＋ の構成 */
.accordion-btn .icon::before,
.accordion-btn .icon::after {
  content: "";
  position: absolute;
  background-color: #fff; /* 白線 */
  transition: all 0.3s ease;
}

/* 横棒 */
.accordion-btn .icon::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  transform: translateY(-50%);
}

/* 縦棒 */
.accordion-btn .icon::after {
  left: 50%;
  top: 0;
  width: 2px;
  height: 100%;
  transform: translateX(-50%);
}

/* 開いているときは縦棒を非表示（−になる） */
.accordion input[type="checkbox"]:checked + .accordion-btn .icon::after {
  transform: rotate(90deg);
}

/* アコーディオンの中身 */
.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

/* 開いた時に表示 */
.accordion input[type="checkbox"]:checked ~ .accordion-content {
  max-height: 1000px; /* 適宜調整 */
}

.content03_1,
.content03_2,
.content03_3 {
  position: relative;
}
.content03_1 .btn {
  position: absolute;
  bottom: 2%;
  left: 0;
}
.content03_2 .btn {
  position: absolute;
  bottom: 2%;
  left: 0;
}
.content03_3 .btn {
  position: absolute;
  bottom: 3%;
  left: 0;
}