/* ============================================================
   About ページ専用スタイル（Goodpatch風・モバイルファースト）
   ブレークポイント: 767px / 900px
   ============================================================ */

.about {
  --ab-text: #0a0a0a;
  --ab-sub: #6b7280;
  --ab-blue: #096fc8;
  --ab-bg-alt: #f5f5f5;
  --ab-border: #e5e5e5;
  color: var(--ab-text);
  background: #fff;
  font-family: "Noto Sans JP", sans-serif;
  line-height: 1.9;
  overflow-x: hidden;
}

.about * {
  box-sizing: border-box;
}

.about-hero__inner,
.about-cause__inner,
.about-belief__inner,
.about-why__inner,
.about-how__inner,
.about-what__inner,
.about-story__inner,
.about-cta__inner {
  max-width: 1080px;
  margin: 0 auto;
  width: 100%;
}

/* 共通パーツ */
.about-eyebrow {
  font-family: "Inter", sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ab-blue);
  margin: 0 0 1.1rem;
}
.about-eyebrow--line {
  display: flex;
  align-items: center;
  gap: 10px;
}
.about-eyebrow--line::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--ab-blue);
}
.about-eyebrow--light {
  color: #bcd9f2;
}

.about-heading {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.01em;
  margin: 0 0 1.5rem;
}
.about-p {
  font-size: 0.92rem;
  margin: 0 0 1.2rem;
}
.about-p:last-child {
  margin-bottom: 0;
}
.about-p--lead {
  color: var(--ab-sub);
  max-width: 640px;
}

/* 画像プレースホルダー */
.about-img {
  background: linear-gradient(135deg, #dde8f2, #eef3f8);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #a3b3c4;
}
.about-img--portrait {
  aspect-ratio: 3/4;
}
.about-img--square {
  aspect-ratio: 1/1;
}
.about-img--wide {
  aspect-ratio: 16/10;
  border-radius: 8px 8px 0 0;
  color: var(--ab-blue);
}

/* 装飾 */
.about-deco {
  position: absolute;
  z-index: 1;
  pointer-events: none;
}
.about-deco--circle-fill {
  top: -60px;
  right: -60px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: #e3eefa;
}
.about-deco--circle-line {
  bottom: 40px;
  right: 30px;
  width: 100px;
  height: 100px;
  border: 2px solid #cddff2;
  border-radius: 50%;
}
.about-deco--dot {
  top: 60px;
  right: 90px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ab-blue);
}
.about-deco--ring-l {
  top: -40px;
  left: -40px;
  width: 200px;
  height: 200px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 50%;
}
.about-deco--ring-r {
  top: -50px;
  right: -50px;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 50%;
}
.about-deco--ring-bl {
  bottom: -40px;
  left: -30px;
  width: 180px;
  height: 180px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
}
.about-deco--dot-w {
  top: 50px;
  left: 40px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
}

/* ===== Hero ===== */
.about-hero {
  position: relative;
  padding: 96px 24px 72px;
  min-height: 78vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: #f4f8fc;
  overflow: hidden;
}
.about-hero__inner {
  position: relative;
  z-index: 2;
}
.about-hero__title {
  font-family: "Inter", sans-serif;
  font-size: 2.8rem;
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0 0 1.4rem;
}
.about-hero__lead {
  font-size: 1.02rem;
  font-weight: 500;
  color: var(--ab-sub);
  margin: 0;
}
.about-hero__scroll {
  position: absolute;
  bottom: 24px;
  left: 24px;
  z-index: 2;
  font-family: "Inter", sans-serif;
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #9ca3af;
  padding-left: 32px;
}
.about-hero__scroll::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 24px;
  height: 1px;
  background: #9ca3af;
}

/* ===== Cause ===== */
.about-cause {
  padding: 64px 24px;
  border-top: 1px solid var(--ab-border);
}
.about-cause__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

/* ===== Belief ===== */
.about-belief {
  position: relative;
  padding: 80px 24px;
  background: var(--ab-blue);
  text-align: center;
  overflow: hidden;
}
.about-belief__inner {
  position: relative;
  z-index: 2;
}
.about-belief__title {
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1.4;
  color: #fff;
  margin: 0 0 1.5rem;
}
.about-belief__text {
  font-size: 0.92rem;
  color: #dceaf8;
  max-width: 520px;
  margin: 0 auto;
}

/* ===== Why one-stop ===== */
.about-why {
  padding: 64px 24px;
}
.about-why__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.4rem;
  margin-top: 2.4rem;
}
.about-why__card {
  position: relative;
  padding: 1.6rem 1.4rem;
  background: #f7f9fc;
  border-radius: 8px;
  overflow: hidden;
}
.about-why__num {
  position: absolute;
  top: 6px;
  right: 14px;
  font-family: "Inter", sans-serif;
  font-size: 3rem;
  font-weight: 700;
  color: #e6eef7;
  line-height: 1;
}
.about-why__title {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.6rem;
  position: relative;
  z-index: 2;
}
.about-why__desc {
  font-size: 0.86rem;
  color: var(--ab-sub);
  margin: 0;
  position: relative;
  z-index: 2;
}

/* ===== How I work ===== */
.about-how {
  padding: 64px 24px;
  background: var(--ab-bg-alt);
}
.about-how__head {
  margin-bottom: 2.4rem;
}
.about-step {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.4rem;
  padding: 1.5rem 0;
  border-top: 1px solid #d8d8d8;
}
.about-step:last-child {
  border-bottom: 1px solid #d8d8d8;
}
.about-step__num {
  font-family: "Inter", sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ab-blue);
}
.about-step__en {
  font-family: "Inter", sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0;
}
.about-step__ja {
  font-size: 0.86rem;
  color: var(--ab-sub);
  margin: 0.1rem 0 0;
}
.about-step__desc {
  font-size: 0.88rem;
  color: #4b4b4b;
  margin: 0.5rem 0 0;
}

/* ===== What I do ===== */
.about-what {
  padding: 64px 24px;
}
.about-what__head {
  margin-bottom: 2.4rem;
}
.about-what__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.6rem;
}
.about-what__card {
  border: 1px solid var(--ab-border);
  border-radius: 8px;
  overflow: hidden;
}
.about-what__body {
  padding: 1.2rem 1.1rem;
}
.about-what__title {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
}
.about-what__desc {
  font-size: 0.84rem;
  color: var(--ab-sub);
  margin: 0;
}

/* ===== Story ===== */
.about-story {
  padding: 64px 24px;
  background: var(--ab-bg-alt);
}
.about-story__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
.about-story__text {
  align-self: center;
}

/* ===== CTA ===== */
.about-cta {
  position: relative;
  padding: 84px 24px;
  text-align: center;
  background: var(--ab-blue);
  overflow: hidden;
}
.about-cta__inner {
  position: relative;
  z-index: 2;
}
.about-cta__title {
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1.4;
  color: #fff;
  margin: 0 0 1.4rem;
}
.about-cta__text {
  font-size: 0.9rem;
  color: #dceaf8;
  max-width: 480px;
  margin: 0 auto 2.2rem;
}
.about-cta__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: #fff;
  color: var(--ab-blue);
  font-size: 0.92rem;
  font-weight: 700;
  padding: 0.95rem 2.4rem;
  border-radius: 100px;
  text-decoration: none;
  transition:
    transform 0.3s ease,
    opacity 0.3s ease;
}
.about-cta__btn:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

/* ============================================================
   767px以上（タブレット〜）
   ============================================================ */
@media (min-width: 767px) {
  .about-hero {
    padding: 120px 40px 88px;
  }
  .about-hero__title {
    font-size: 4.2rem;
  }
  .about-hero__lead {
    font-size: 1.15rem;
  }
  .about-heading {
    font-size: 1.9rem;
  }
  .about-belief__title,
  .about-cta__title {
    font-size: 2.4rem;
  }

  .about-cause,
  .about-belief,
  .about-why,
  .about-how,
  .about-what,
  .about-story,
  .about-cta {
    padding-left: 40px;
    padding-right: 40px;
  }
  .about-cause,
  .about-why,
  .about-how,
  .about-what,
  .about-story {
    padding-top: 96px;
    padding-bottom: 96px;
  }
  .about-belief,
  .about-cta {
    padding-top: 104px;
    padding-bottom: 104px;
  }

  /* Cause: テキスト＋画像 横並び */
  .about-cause__inner {
    grid-template-columns: 1fr 300px;
    align-items: center;
    gap: 3rem;
  }

  /* Why: 2カラム */
  .about-why__grid {
    grid-template-columns: 1fr 1fr;
  }

  /* How: 番号＋ラベル＋説明の3カラム */
  .about-step {
    grid-template-columns: 56px 200px 1fr;
    gap: 1.5rem;
    align-items: start;
  }
  .about-step__desc {
    margin-top: 0;
  }

  /* What: 3カラム */
  .about-what__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Story: 画像＋テキスト 横並び */
  .about-story__inner {
    grid-template-columns: 280px 1fr;
    align-items: center;
    gap: 3rem;
  }
}

/* ============================================================
   900px以上（デスクトップ）
   ============================================================ */
@media (min-width: 900px) {
  .about-hero__title {
    font-size: 5.2rem;
  }
  .about-heading {
    font-size: 2.1rem;
  }
  .about-belief__title,
  .about-cta__title {
    font-size: 2.6rem;
  }
}