@charset "UTF-8"; 
.page-about {
    display: flex;
    flex-direction: column;
    padding: 0 8vw;
    gap: 3vw;
}
section {
    display: flex;
    width: 100%;
    height: auto;
    align-items: center;
    position: relative;
}
/* ===============================
   01: Header
=============================== */
.about__header {
    display: flex;
    flex-direction: row;
    text-align: center;
    align-items: end;
    gap: 3vw;
    padding: 12vw 0 0;
}
.about__title {
  font-size: 4.2rem;
  line-height: 3vw;
  font-weight: 700;
  letter-spacing: .05em;
}
.about__subtitle {
  font-size: 1.4rem;
  letter-spacing: .1em;
}
/* ===============================
   02: about main
   =============================== */
.about__main {
    padding: 8vw 12vw;
}
 /* ▼ 下からフェードイン初期状態 */
.scroll-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity .8s ease, transform .8s ease;
}
 /* ▼ 表示されたら実行 */
.scroll-up.is-show {
    opacity: 1;
    transform: translateY(0);
}
.about__main-box {
    padding: 0 3vw;
}
.about__main-box p {
    font-size: 1.9rem;
    letter-spacing: 0.1vw;
}
.about__main-decoration {
    position: absolute;
    width: 22vw;
    z-index: -1;
}
.decoration-left {
    left: 6vw;
    top: 0;
}
.decoration-right {
    right: 6vw;
    bottom: 0;
}
.scroll-lines span {
  display: block;
  opacity: 0;
  transform: translateY(28px); /* ←気持ち深く沈ませる */
  transition: 
    opacity .85s ease,         /* ←間を感じる速度 */
    transform .85s cubic-bezier(.25,.8,.25,1);
}

/* 行が出現し始めてからの間を大きく */
.scroll-lines.is-show span {
  opacity: 1;
  transform: translateY(0);
  transition-delay: calc(var(--i) * 0.20s); /* ←ここがポイント（ゆっくり） */
}
/* ===============================
   03: about sub
=============================== */
.about__sub {
    padding: 2vw 12vw;
}
.about__sub-img {
    height: 12vw;
    border-radius: 30px;
}
.about__sub-box {
    display: flex;
    flex-direction: column;
    padding: 0 3vw;
    gap: 2vw;
    justify-content: space-evenly;
}
.about__sub-name {
    display: flex;
    flex-direction: row;
    align-items: center;
}
.about__sub-name p {
    font-size: 1.6rem;
    letter-spacing: 0.1vw;
        font-weight: 500;
}
.about__sub-name p:last-child {
    font-size: 1.2rem;
    letter-spacing: 0.1vw;
        font-weight: 500;
}
.about__sub-txt {
    font-size: 1.2rem;
    letter-spacing: 0.1vw;
        font-weight: 500;
}

/* 📱 Tablet (1024px) */
@media (max-width: 1024px){
    .about__main-box p {
        font-size: 1.5rem;
    }
    .about__main-decoration {
        width: 30vw;
    }
    .about__sub-img {
        height: 20vw;
    }
}
/* 📱 Smartphone (810px) */
@media (max-width: 810px){
    .about__header {
        padding: 20vw 0 0;
        align-items: center;
    }
    .about__title {
        font-size: 3.2rem;
        line-height: normal;
    }
    .about__main {
        padding: 8vw 3vw;
    }
    .about__main-box {
        padding: 0;
    }
    .about__main-box p {
        font-size: 1.2rem;
        font-weight: 500;
        letter-spacing: 0rem;
        line-height: 1.7rem;
    }
    .about__main-decoration {
        width: 55vw;
    }
    .decoration-left {
        left: -5vw;
        top: -5vw;
    }
    .decoration-right {
        right: -5vw;
        bottom: -5vw;
    }
    .about__sub {
        flex-direction: column;
        padding: 2vw 3vw;
    }
    .about__sub-box {
        padding: 0;
    }
    .about__sub-img {
        width: 30vw;
        height: 30vw;
    }
    .about__sub-name {
        flex-direction: column;
    }
}