@charset "utf-8";
/* =======================
section-information-topic
======================== */
.section-sub  {
    padding: 0 5.33%;
}

.topicTime {
    display: block;
    font-family: "Times New Roman";
    font-size: 1.6rem;
    line-height: 1.2;
    font-weight: 400;
    letter-spacing: 0.34px;
    color: #7F8296;
    padding-top: 120px;
}

.title {
    padding-top: 12px;
    text-align: left;
}

/* pc 769px */
@media screen and (min-width: 769px) {
    .section-sub {
        padding: 72px 6.6%;
        margin: 0 11.11%;
    }

    .topicTime {
        padding-top: 172px;
        font-size: 2.4rem;
    }

    .title {
        padding: 24px 0 0;
    }
}

/* =======================
topic
======================== */
.section-topic {
    padding-bottom: 72px;
}

.topic__list:not(:first-child) {
    margin-top: 56px;
}

.topic__list {
    padding: 40px 0 0;
    border-top: 1px solid #A6A9C1;
    border-bottom: 1px solid  #A6A9C1;
}

.topic__txt {
    text-align: justify;
    font-family: "Zen Old Mincho";
    font-size: 1.6rem;
    font-weight: 400;
    letter-spacing: 0.8px;
    margin-top: 40px;
    padding-bottom: 40px;
}

.topic__img {
    width: 100%;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
    margin-top: 40px;
}

.btn__group {
    display: flex;
    justify-content: center;
}

.btn {
    font-family: "Zen Old Mincho";
    font-size: 1.6rem;
    font-weight: 400;
    line-height: 1.5; 
    letter-spacing: 0.32px;
    margin-top: 24px;
    padding-right: 8px;

    display:inline-block;
    cursor:pointer;
    position: relative;

    text-decoration: none; /* 元の下線を消す */
    padding-bottom: 10px;  /* 下線用の余白 */
}

.btn::after {
    content: '';
    display: block;
    position: absolute;
    top: calc(50% - 7px);
    left: 100%;
    width: 40px;
    height: 5px;
    border: none;
    border-right: 2px solid #202234;
    border-bottom: 1px solid #202234;
    transform: skew(45deg);
    transition: .3s;
}

.btn:hover::after {
  position: absolute;
  top: calc(50% - 7px);
  left: 100%;
  width: 60px;
  height: 5px;
}

.btn::before {
  content: ''; 
  position: absolute;
  left: 0;  /* 左端スタート */
  bottom: 0; /* テキスト下に配置 */
  width: 0;  /* 初期幅0 */
  height: 1px; /* 下線の太さ */
  background-color: #A6A9C1; 
  transition: all 0.4s ease; /* アニメーション */
}

.btn:hover::before {
  width: 145px; /* ホバー時に全幅に広がる */
}

.btn:hover {
  color: inherit; /* 元の文字色を保持 */
}

/* pc 769px */
@media screen and (min-width: 769px) {
    .section-topic {
        margin: 0;
        padding: 0;
    }

    .topic__list {
        padding: 72px 6.6%;
        margin: 0 11.11%;
    }

    .topic__img {
        padding-bottom: 0;
    }

    .btn {
        font-size: 1.8rem;
        line-height: 1.5;
        letter-spacing: 0.36px;
        margin: 72px 11.11% 120px;
    }

    .btn:hover::before {
        width: 155px; /* ホバー時に全幅に広がる */
    }

}