/* ============================================================
   株式会社ルネッサ製薬 コーポレートサイト style.css
   方針：3つの事業を主役に。数字・線・余白・図形で事業を整理。
   ------------------------------------------------------------
   目次
   00. 変数
   01. リセット・ベース
   02. 共通レイアウト・見出し・ボタン
   03. ヘッダー / ナビ / ハンバーガー
   04. ファーストビュー（＋事業名バー）
   05. OUR BUSINESS（大型カード）
   06. 事業詳細（detail・対応領域タグ）
   07. LUNESSA STORE
   08. OUR STRENGTHS
   09. ブランド・会社コンセプト（コンパクト）
   10. COMPANY
   11. CONTACT / フォーム
   12. フッター
   13. アニメーション（reveal）
   14. レスポンシブ
   ============================================================ */

/* ===== 00. 変数 ===== */
:root {
  --c-white:      #ffffff;
  --c-ivory:      #f8f6f1;
  --c-greige:     #efebe4;
  --c-sage:       #667568;
  --c-sage-soft:  #aab5a8;
  --c-olive:      #3f4b42;
  --c-gold:       #c5aa78;
  --c-champagne:  #d8c9ae;
  --c-text:       #252825;
  --c-text-soft:  #6c706c;
  --c-line:       #ded8ce;

  --f-serif: "Cormorant Garamond", "Noto Serif JP", serif;
  --f-sans-en: "Jost", sans-serif;
  --f-ja: "Zen Kaku Gothic New", "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;

  --max: 1200px;
  --gutter: 6vw;
  --header-h: 88px;
}

/* ===== 01. リセット・ベース ===== */
*,*::before,*::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--f-ja);
  font-weight: 400;
  color: var(--c-text);
  background: var(--c-white);
  line-height: 1.95;
  letter-spacing: 0.04em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1,h2,h3,p,dl,dd,dt,figure { margin: 0; }
button { font-family: inherit; cursor: pointer; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--c-sage); outline-offset: 3px;
}

/* ===== 02. 共通レイアウト・見出し・ボタン ===== */
.container { width: 100%; max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }
.container--narrow { max-width: 880px; }

.section { padding-block: clamp(80px, 11vw, 150px); }
.section--tint { background: var(--c-ivory); }
.section__head { margin-bottom: clamp(40px, 6vw, 70px); }

.section__label {
  font-family: var(--f-sans-en);
  font-weight: 400;
  font-size: 0.8rem;
  letter-spacing: 0.34em;
  color: var(--c-sage);
  margin-bottom: 1.3em;
  text-transform: uppercase;
}
.section__label--center { text-align: center; }

.section__copy { font-family: var(--f-ja); font-weight: 500; font-size: clamp(1.5rem, 3.4vw, 2.4rem); line-height: 1.7; letter-spacing: 0.06em; }
.section__copy--lg { font-size: clamp(1.7rem, 4.4vw, 2.9rem); }
.section__copy--center { text-align: center; }

.section__body { margin-top: 1.6em; color: var(--c-text-soft); font-size: 0.98rem; font-weight: 300; line-height: 2.15; }
.section__body--center { text-align: center; margin-inline: auto; max-width: 720px; }

.btn {
  display: inline-block;
  font-family: var(--f-sans-en);
  letter-spacing: 0.2em;
  font-size: 0.88rem;
  padding: 1.1em 3em;
  border: 1px solid transparent;
  border-radius: 999px;
  transition: background-color .4s ease, color .4s ease, transform .4s ease, box-shadow .4s ease, border-color .4s ease;
}
.btn--primary { background: var(--c-sage); color: var(--c-white); }
.btn--primary:hover { background: var(--c-olive); transform: translateY(-2px); box-shadow: 0 12px 26px rgba(63,75,66,.18); }
.btn--line { background: transparent; color: var(--c-sage); border-color: var(--c-sage); padding: 0.9em 2.4em; }
.btn--line:hover { background: var(--c-sage); color: var(--c-white); transform: translateY(-2px); }

/* ===== 03. ヘッダー ===== */
.header { position: fixed; inset: 0 0 auto 0; z-index: 100; transition: background-color .4s ease, box-shadow .4s ease, backdrop-filter .4s ease; }
.header__inner { height: var(--header-h); max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); display: flex; align-items: center; justify-content: space-between; }
.header.is-scrolled { background: rgba(255,255,255,.9); backdrop-filter: blur(10px); box-shadow: 0 1px 0 rgba(0,0,0,.05); }

.header__logo { display: flex; flex-direction: column; line-height: 1.25; }
.header__logo-en { font-family: var(--f-sans-en); font-weight: 400; font-size: 1.22rem; letter-spacing: 0.34em; color: var(--c-white); transition: color .4s ease; }
.header__logo-ja { font-size: 0.6rem; letter-spacing: 0.24em; color: rgba(255,255,255,.85); margin-top: 0.4em; transition: color .4s ease; }
.header.is-scrolled .header__logo-en { color: var(--c-text); }
.header.is-scrolled .header__logo-ja { color: var(--c-text-soft); }

.gnav__list { display: flex; align-items: center; gap: clamp(0.85rem, 1.7vw, 1.9rem); }
.gnav__link { font-family: var(--f-sans-en); font-size: 0.8rem; letter-spacing: 0.14em; color: var(--c-white); position: relative; padding-block: 0.4em; transition: color .4s ease; }
.gnav__link::after { content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: left; transition: transform .4s ease; }
.gnav__link:hover::after { transform: scaleX(1); }
.header.is-scrolled .gnav__link { color: var(--c-text); }
.gnav__link--contact { border: 1px solid rgba(255,255,255,.6); border-radius: 999px; padding: 0.55em 1.3em; }
.gnav__link--contact::after { display: none; }
.gnav__link--contact:hover { background: rgba(255,255,255,.15); }
.header.is-scrolled .gnav__link--contact { border-color: var(--c-sage); color: var(--c-sage); }
.header.is-scrolled .gnav__link--contact:hover { background: var(--c-sage); color: var(--c-white); }

.hamburger { display: none; width: 44px; height: 44px; border: none; background: transparent; position: relative; z-index: 120; }
.hamburger__line { position: absolute; left: 9px; width: 26px; height: 1.5px; background: var(--c-white); transition: transform .4s ease, opacity .3s ease, background-color .4s ease; }
.hamburger__line:nth-child(1){top:15px;} .hamburger__line:nth-child(2){top:22px;} .hamburger__line:nth-child(3){top:29px;}
.header.is-scrolled .hamburger__line { background: var(--c-text); }
body.is-menu-open .hamburger__line { background: var(--c-text); }
body.is-menu-open .hamburger__line:nth-child(1){transform:translateY(7px) rotate(45deg);}
body.is-menu-open .hamburger__line:nth-child(2){opacity:0;}
body.is-menu-open .hamburger__line:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ===== 04. ファーストビュー ===== */
.hero { position: relative; min-height: 100svh; display: flex; flex-direction: column; justify-content: center; overflow: hidden; padding-top: var(--header-h); }
.hero__bg { position: absolute; inset: 0; background: var(--c-greige) center / cover no-repeat; transform: scale(1.08); animation: heroZoom 10s ease-out forwards; }
@keyframes heroZoom { to { transform: scale(1); } }
.hero__overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(37,40,37,.34) 0%, rgba(37,40,37,.18) 42%, rgba(37,40,37,.42) 100%); }
.hero__content { position: relative; z-index: 2; max-width: var(--max); width: 100%; margin-inline: auto; padding-inline: var(--gutter); color: var(--c-white); flex: 1; display: flex; flex-direction: column; justify-content: center; }
.hero__sub { font-family: var(--f-sans-en); font-size: 0.95rem; letter-spacing: 0.4em; margin-bottom: 1.5em; }
.hero__copy { font-family: var(--f-ja); font-weight: 500; font-size: clamp(2rem, 5.4vw, 4rem); line-height: 1.5; letter-spacing: 0.07em; text-shadow: 0 2px 22px rgba(0,0,0,.22); }
.hero__lead { margin-top: 1.7em; font-size: clamp(0.9rem, 1.8vw, 1.08rem); font-weight: 300; line-height: 2; letter-spacing: 0.06em; max-width: 640px; }

/* 3事業名バー */
.hero__biz {
  position: relative;
  z-index: 2;
  max-width: var(--max);
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--gutter) clamp(28px, 4vw, 44px);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(8px, 1.4vw, 20px);
}
.hero__biz-item {
  display: flex;
  align-items: baseline;
  gap: 0.9em;
  padding: 1.2em 1.4em;
  color: var(--c-white);
  border: 1px solid rgba(255,255,255,.34);
  border-radius: 4px;
  background: rgba(37,40,37,.14);
  backdrop-filter: blur(4px);
  transition: background-color .35s ease, transform .35s ease, border-color .35s ease;
}
.hero__biz-item:hover { background: rgba(255,255,255,.16); border-color: rgba(255,255,255,.7); transform: translateY(-3px); }
.hero__biz-num { font-family: var(--f-serif); font-size: 1.5rem; font-weight: 500; color: var(--c-champagne); line-height: 1; }
.hero__biz-name { font-size: 0.92rem; font-weight: 500; letter-spacing: 0.04em; line-height: 1.5; }

/* ===== 05. OUR BUSINESS（大型カード） ===== */
.bizcards { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(24px, 2.6vw, 40px); }
.bizcard { background: var(--c-white); }
.bizcard__link { display: block; height: 100%; border: 1px solid var(--c-line); border-radius: 6px; overflow: hidden; transition: box-shadow .4s ease, transform .4s ease, border-color .4s ease; }
.bizcard__link:hover { transform: translateY(-6px); box-shadow: 0 22px 46px rgba(63,75,66,.12); border-color: transparent; }
.bizcard__media { overflow: hidden; aspect-ratio: 4 / 3; }
.bizcard__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s ease; }
.bizcard__link:hover .bizcard__media img { transform: scale(1.06); }
.bizcard__body { padding: clamp(26px, 2.6vw, 38px); position: relative; }
.bizcard__num { font-family: var(--f-serif); font-size: 2.2rem; font-weight: 500; color: var(--c-gold); line-height: 1; }
.bizcard__en { font-family: var(--f-sans-en); font-size: 0.74rem; letter-spacing: 0.22em; color: var(--c-sage-soft); margin-top: 0.6em; }
.bizcard__ja { font-size: 1.24rem; font-weight: 500; margin-top: 0.5em; line-height: 1.55; }
.bizcard__more { display: inline-block; margin-top: 1.4em; font-family: var(--f-sans-en); font-size: 0.78rem; letter-spacing: 0.12em; color: var(--c-sage); transition: gap .3s ease; }
.bizcard__link:hover .bizcard__more { color: var(--c-olive); }

/* ===== 06. 事業詳細（detail） ===== */
.detail__inner {
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: center;
  gap: clamp(40px, 5.5vw, 84px);
}
.detail--reverse .detail__media { order: 1; }
.detail__media { position: relative; overflow: hidden; border-radius: 4px; }
.detail__media img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 5 / 6; transition: transform 1.3s ease; }
.detail__media:hover img { transform: scale(1.04); }
.detail__num { font-family: var(--f-serif); font-size: 3rem; font-weight: 500; color: var(--c-gold); line-height: 1; display: block; }
.detail__en { font-family: var(--f-sans-en); font-size: 0.8rem; letter-spacing: 0.24em; color: var(--c-sage); margin-top: 0.5em; }
.detail__title { font-size: clamp(1.4rem, 2.8vw, 2rem); font-weight: 500; margin-top: 0.4em; line-height: 1.5; letter-spacing: 0.04em; }
.detail__body { margin-top: 1.5em; color: var(--c-text-soft); font-size: 0.97rem; font-weight: 300; line-height: 2.15; }

.detail__tag-label { margin-top: 2em; font-family: var(--f-sans-en); font-size: 0.72rem; letter-spacing: 0.2em; color: var(--c-sage); position: relative; padding-left: 2.4em; }
.detail__tag-label::before { content: ""; position: absolute; left: 0; top: 50%; width: 1.8em; height: 1px; background: var(--c-sage); }
/* 対応領域タグ（線と余白で整理） */
.tags { display: flex; flex-wrap: wrap; gap: 0.7em; margin-top: 1.2em; }
.tags li { font-size: 0.82rem; font-weight: 400; color: var(--c-text); border: 1px solid var(--c-line); border-radius: 999px; padding: 0.5em 1.1em; letter-spacing: 0.02em; background: var(--c-white); }
.section--tint .tags li { background: var(--c-white); }

/* ===== 07. LUNESSA STORE ===== */
.store { background: radial-gradient(circle at 82% 18%, rgba(216,201,174,.35) 0%, rgba(216,201,174,0) 46%), var(--c-greige); }
.store__inner { max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); display: grid; grid-template-columns: 1.05fr 0.95fr; align-items: center; gap: clamp(40px, 6vw, 90px); }
.store__brand { font-family: var(--f-sans-en); font-weight: 500; font-size: clamp(1.4rem, 3vw, 2rem); letter-spacing: 0.24em; color: var(--c-olive); margin-block: 0.2em 0.8em; }
.store__btn { margin-top: 2.2em; }
.store__mock { position: relative; overflow: hidden; border-radius: 6px; box-shadow: 0 24px 60px rgba(63,75,66,.14); }
.store__mock img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; transition: transform 1.4s ease; }
.store__mock:hover img { transform: scale(1.05); }

/* ===== 08. OUR STRENGTHS ===== */
.strengths__grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(36px, 5vw, 72px); align-items: center; }
.strengths__media { overflow: hidden; border-radius: 4px; }
.strengths__media img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 5; }
.strengths__list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--c-line); border: 1px solid var(--c-line); }
.strengths__item { background: var(--c-ivory); padding: clamp(24px, 2.6vw, 38px); }
.strengths__num { font-family: var(--f-serif); font-size: 1.7rem; font-weight: 500; color: var(--c-gold); line-height: 1; }
.strengths__title { font-size: 1.08rem; font-weight: 500; margin-top: 0.6em; line-height: 1.5; }
.strengths__desc { font-size: 0.86rem; font-weight: 300; color: var(--c-text-soft); margin-top: 0.8em; line-height: 1.95; }

/* ===== 09. ブランド・会社コンセプト（コンパクト） ===== */
.concept__brand { text-align: center; }
.concept__mv {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 3vw, 44px);
  margin-top: clamp(48px, 6vw, 76px);
  padding-top: clamp(40px, 5vw, 56px);
  border-top: 1px solid var(--c-line);
}
.concept__mv-label { font-family: var(--f-sans-en); font-size: 0.74rem; letter-spacing: 0.24em; color: var(--c-sage); margin-bottom: 0.8em; }
.concept__mv-text { font-size: clamp(1.05rem, 2vw, 1.3rem); font-weight: 500; line-height: 1.7; }
.concept__value { margin-top: clamp(40px, 5vw, 56px); padding-top: clamp(36px, 4vw, 48px); border-top: 1px solid var(--c-line); }
.concept__value-label { font-family: var(--f-sans-en); font-size: 0.74rem; letter-spacing: 0.24em; color: var(--c-sage); margin-bottom: 1.4em; text-align: center; }
.concept__value-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.8em 1em; }
.concept__value-list li { font-size: 0.86rem; font-weight: 300; color: var(--c-text-soft); border: 1px solid var(--c-line); border-radius: 999px; padding: 0.6em 1.3em; }
.concept__value-list span { font-family: var(--f-sans-en); font-weight: 500; letter-spacing: 0.1em; color: var(--c-sage); margin-right: 0.8em; }

/* ===== 10. COMPANY ===== */
.company__table { border-top: 1px solid var(--c-line); }
.company__row { display: grid; grid-template-columns: 200px 1fr; gap: 24px; padding-block: 1.6em; border-bottom: 1px solid var(--c-line); }
.company__row dt { font-weight: 500; font-size: 0.95rem; color: var(--c-text); letter-spacing: 0.08em; }
.company__row dd { font-weight: 300; color: var(--c-text-soft); line-height: 1.9; }
.company__biz li { position: relative; padding-left: 1.1em; }
.company__biz li::before { content: "—"; position: absolute; left: 0; color: var(--c-sage); }
.company__map { margin-top: clamp(36px, 5vw, 60px); aspect-ratio: 16 / 9; width: 100%; border-radius: 4px; overflow: hidden; background: var(--c-greige); }
.company__map iframe { display: block; width: 100%; height: 100%; }

/* ===== 11. CONTACT / フォーム ===== */
.form { margin-top: clamp(30px, 4vw, 50px); }
.form__row { margin-bottom: 1.9em; }
.form__label { display: block; font-size: 0.9rem; font-weight: 500; margin-bottom: 0.7em; letter-spacing: 0.06em; }
.form__req { display: inline-block; font-size: 0.66rem; color: var(--c-white); background: var(--c-gold); border-radius: 3px; padding: 0.1em 0.6em; margin-left: 0.7em; letter-spacing: 0.1em; vertical-align: 1px; }
.form__input { width: 100%; font-family: inherit; font-size: 1rem; color: var(--c-text); background: var(--c-white); border: 1px solid var(--c-line); border-radius: 4px; padding: 0.95em 1.1em; transition: border-color .3s ease, box-shadow .3s ease; }
.form__input::placeholder { color: #b7b3aa; }
.form__input:focus { outline: none; border-color: var(--c-sage); box-shadow: 0 0 0 3px rgba(102,117,104,.15); }
.form__textarea { resize: vertical; min-height: 150px; line-height: 1.9; }
.form__select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23667568' stroke-width='1.4' fill='none' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 1.2em center; padding-right: 3em; }
.form__input.is-error { border-color: #c98b7a; background: #fdf6f4; }
.form__error { color: #c15c46; font-size: 0.8rem; margin-top: 0.5em; line-height: 1.6; }
.form__row--check { display: flex; flex-direction: column; align-items: center; text-align: center; margin-top: 2.4em; }
.form__check { display: inline-flex; align-items: center; gap: 0.7em; font-size: 0.92rem; font-weight: 300; cursor: pointer; }
.form__check input { width: 18px; height: 18px; accent-color: var(--c-sage); flex: none; }
.form__link { color: var(--c-sage); text-decoration: underline; text-underline-offset: 3px; }
.form__submit-wrap { text-align: center; margin-top: 2.4em; }
.form__done { text-align: center; margin-top: 2.2em; padding: 1.6em; border: 1px solid var(--c-sage); border-radius: 6px; background: rgba(102,117,104,.08); color: var(--c-sage); font-weight: 500; line-height: 1.9; }

/* ===== 12. フッター ===== */
.footer { background: var(--c-olive); color: rgba(255,255,255,.82); padding-top: clamp(56px, 7vw, 84px); }
.footer__inner { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; padding-bottom: clamp(40px, 5vw, 60px); }
.footer__logo { font-family: var(--f-sans-en); font-size: 1.3rem; letter-spacing: 0.34em; color: var(--c-white); }
.footer__name { margin-top: 0.9em; font-size: 0.95rem; }
.footer__addr { margin-top: 0.8em; font-size: 0.82rem; font-weight: 300; line-height: 1.9; color: rgba(255,255,255,.6); }
.footer__store { display: inline-block; margin-top: 1.4em; font-family: var(--f-sans-en); font-size: 0.82rem; letter-spacing: 0.16em; color: var(--c-champagne); border-bottom: 1px solid rgba(216,201,174,.5); padding-bottom: 3px; transition: color .3s ease, border-color .3s ease; }
.footer__store:hover { color: var(--c-white); border-color: var(--c-white); }
.footer__list { display: grid; grid-template-columns: repeat(2, auto); gap: 0.9em 2.6em; }
.footer__list a { font-family: var(--f-sans-en); font-size: 0.82rem; letter-spacing: 0.14em; color: rgba(255,255,255,.72); transition: color .3s ease; }
.footer__list a:hover { color: var(--c-white); }
.footer__copy { text-align: center; font-family: var(--f-sans-en); font-size: 0.7rem; letter-spacing: 0.18em; color: rgba(255,255,255,.5); padding: 2em var(--gutter); border-top: 1px solid rgba(255,255,255,.12); }

/* ===== 13. アニメーション（reveal） ===== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 1s ease, transform 1s ease; will-change: opacity, transform; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
/* 大型カードの順次表示 */
.bizcard:nth-child(1).is-visible { transition-delay: 0s; }
.bizcard:nth-child(2).is-visible { transition-delay: .12s; }
.bizcard:nth-child(3).is-visible { transition-delay: .24s; }
.strengths__item:nth-child(1).is-visible { transition-delay: 0s; }
.strengths__item:nth-child(2).is-visible { transition-delay: .08s; }
.strengths__item:nth-child(3).is-visible { transition-delay: .16s; }
.strengths__item:nth-child(4).is-visible { transition-delay: .24s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .bizcard.is-visible, .strengths__item.is-visible { transition-delay: 0s !important; }
  .hero__bg { animation: none; transform: scale(1); }
}

/* ===== 14. レスポンシブ ===== */

/* --- タブレット（〜1024px）--- */
@media (max-width: 1024px) {
  :root { --gutter: 5vw; }
  .bizcards { gap: 20px; }
}

/* --- タブレット小・スマホ手前（〜900px）--- */
@media (max-width: 900px) {
  :root { --header-h: 70px; }

  .hamburger { display: block; }
  .gnav { position: fixed; inset: 0; background: rgba(248,246,241,.98); backdrop-filter: blur(6px); display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transition: opacity .45s ease, visibility .45s ease; z-index: 110; }
  body.is-menu-open .gnav { opacity: 1; visibility: visible; }
  .gnav__list { flex-direction: column; gap: 1.6rem; text-align: center; }
  .gnav__link { color: var(--c-text); font-size: 1rem; letter-spacing: 0.2em; opacity: 0; transform: translateY(12px); transition: opacity .5s ease, transform .5s ease; }
  body.is-menu-open .gnav__link { opacity: 1; transform: translateY(0); }
  .gnav__link--contact { border-color: var(--c-sage); color: var(--c-sage); padding: 0.7em 2.2em; }
  .header.is-scrolled .gnav__link { color: var(--c-text); }

  /* 事業名バーを縦積み */
  .hero__biz { grid-template-columns: 1fr; gap: 8px; }
  .hero__biz-item { padding: 0.95em 1.2em; }

  /* 大型カード・詳細・STORE・強みを縦積み */
  .bizcards { grid-template-columns: 1fr; max-width: 460px; margin-inline: auto; }
  .detail__inner, .store__inner, .strengths__grid { grid-template-columns: 1fr; gap: 30px; }
  .detail--reverse .detail__media { order: 0; }
  .detail__media img, .strengths__media img { aspect-ratio: 16 / 10; }
  .strengths__media { max-width: 520px; margin-inline: auto; }
  .store__mock { order: -1; max-width: 480px; }
  .concept__mv { grid-template-columns: 1fr; gap: 28px; }
}

/* --- スマートフォン（〜600px）--- */
@media (max-width: 600px) {
  :root { --gutter: 22px; }
  body { line-height: 1.85; }
  .hero { min-height: 92svh; }
  .hero__copy { line-height: 1.45; }
  .strengths__list { grid-template-columns: 1fr; }
  .company__row { grid-template-columns: 1fr; gap: 6px; padding-block: 1.4em; }
  .footer__inner { flex-direction: column; gap: 34px; }
  .footer__list { grid-template-columns: repeat(2, auto); gap: 0.8em 2rem; }
  .btn { width: 100%; text-align: center; }
  .store__btn { width: auto; }
}