/* =========================================================
   トノニワ — 東濃の、庭と時間。
   独立ブランド / 令和最新・Apple的
   配色: 深い緑(庭) × 生成り/オフホワイト × 墨色 + 金属アクセント(銀緑=しろがね寄り)
   ※ イワヰ本体の「深緑×金」とは別配合。金は使わない。
   ========================================================= */

/* ---------- Design tokens ---------- */
:root {
  /* 墨・文字 */
  --ink:        #1b1c1a;
  --ink-soft:   #55564f;
  --ink-faint:  #8a8b83;

  /* 生成り・紙 */
  --cream:      #f4f0e6; /* 生成りベース */
  --paper:      #fcfaf4; /* さらに明るい面 */
  --paper-2:    #efe9db;

  /* 深い緑(庭) */
  --green-deep: #14332a;
  --green-700:  #234f3d;
  --green-500:  #3a6b51;
  --green-300:  #7aa387;
  --green-100:  #cfe0d3;

  /* 金属アクセント(銀緑/しろがね) — 金では絶対にない */
  --metal:      #93a396;
  --metal-dark: #6f7d72;
  --metal-lite: #c6cfc4;
  --metal-grad: linear-gradient(135deg, #c9d2c8 0%, #869585 42%, #d3dbd1 52%, #7c8a80 100%);

  /* レイアウト */
  --maxw: 1200px;
  --gutter: clamp(1.25rem, 5vw, 4rem);
  --radius: 18px;
  --radius-lg: 28px;

  /* タイポ */
  --font-head: "Zen Kaku Gothic New", "Noto Sans JP", system-ui, sans-serif;
  --font-body: "Noto Sans JP", "Zen Kaku Gothic New", system-ui, sans-serif;

  /* 動き */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 0.9s;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.9;
  color: var(--ink);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
@media (min-width: 768px) { body { font-size: 18px; } }

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 700; line-height: 1.3; margin: 0; }
p { margin: 0; }

/* ---------- Utilities ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.eyebrow {
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: none;
  color: var(--metal-dark);
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
}
.eyebrow::before {
  content: "";
  width: 26px; height: 1px;
  background: var(--metal-grad);
}
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* =========================================================
   ヘッダー(スクロールで縮む・背景ブラー)
   ========================================================= */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: clamp(1rem, 2.4vw, 1.5rem) var(--gutter);
  transition: padding 0.4s var(--ease), background 0.4s var(--ease),
              box-shadow 0.4s var(--ease), backdrop-filter 0.4s var(--ease);
}
.site-header.is-scrolled {
  padding-top: 0.6rem;
  padding-bottom: 0.6rem;
  background: color-mix(in srgb, var(--cream) 72%, transparent);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  backdrop-filter: saturate(140%) blur(14px);
  box-shadow: 0 1px 0 color-mix(in srgb, var(--ink) 8%, transparent);
}
.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.55em;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.1rem, 2.6vw, 1.35rem);
  letter-spacing: 0.04em;
  color: var(--ink);
  transition: font-size 0.4s var(--ease);
}
.is-scrolled .brand { font-size: clamp(1.02rem, 2.2vw, 1.2rem); }
.brand .brand-mark { color: var(--green-700); }
.brand .brand-tag {
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--metal-dark);
}
@media (max-width: 560px) { .brand .brand-tag { display: none; } }

.site-nav ul { display: flex; gap: clamp(1rem, 3vw, 2.2rem); align-items: center; }
.site-nav a {
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  position: relative;
  padding: 0.3em 0;
  transition: color 0.3s var(--ease);
}
.site-nav a::after {
  content: "";
  position: absolute; left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--metal-grad);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--ink); }
.site-nav a:hover::after, .site-nav a[aria-current="page"]::after { transform: scaleX(1); }
@media (max-width: 640px) {
  .site-nav a { font-size: 0.82rem; }
  .site-nav ul { gap: 1.1rem; }
}

/* =========================================================
   ヒーロー
   ========================================================= */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: clamp(7rem, 16vh, 12rem) 0 clamp(4rem, 10vh, 8rem);
  overflow: hidden;
  isolation: isolate;
}
/* ヒーロー写真（最下層）。ComfyUI: assets/img/hero.webp */
.hero-media { position: absolute; inset: 0; z-index: -3; overflow: hidden; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: 62% 45%; }
/* 光のスクリム: 写真の上に生成りの薄膜。左〜下を濃くしテキストの可読性を守る */
.hero-bg {
  position: absolute; inset: 0; z-index: -2;
  background:
    linear-gradient(180deg, transparent 48%, color-mix(in srgb, var(--cream) 74%, transparent) 100%),
    linear-gradient(96deg,
      var(--cream) 0%,
      color-mix(in srgb, var(--cream) 88%, transparent) 30%,
      color-mix(in srgb, var(--cream) 48%, transparent) 62%,
      color-mix(in srgb, var(--cream) 14%, transparent) 100%);
}
.hero-svg {
  position: absolute; inset: 0; z-index: -1;
  width: 100%; height: 100%;
  opacity: 0.4;
  will-change: transform;
}
.hero-svg .contour { fill: none; stroke: var(--green-300); stroke-width: 1; opacity: 0.5; }
.hero-svg .contour.accent { stroke: var(--metal); opacity: 0.7; }

.hero-inner { position: relative; z-index: 1; }
.hero .eyebrow { margin-bottom: clamp(1.2rem, 3vw, 2rem); }
.js .hero .eyebrow { opacity: 0; }

.hero-title {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2.6rem, 11.5vw, 7rem);
  line-height: 1.02;
  letter-spacing: 0.005em;
  color: var(--ink);
  margin: 0;
}
.hero-title .line { display: block; overflow: hidden; }
.hero-title .word { display: inline-block; }
.js .hero-title .word { transform: translateY(110%); }
.hero-title .leaf { color: var(--green-700); }
.hero-title .time {
  color: var(--green-deep);
  letter-spacing: 0.12em; /* 「時間」に間(余白)を持たせる — 先生の指定 */
}
.hero-sub {
  margin-top: clamp(1.6rem, 4vw, 2.6rem);
  font-family: var(--font-head);
  font-weight: 500;
  font-size: clamp(1.05rem, 3.4vw, 1.5rem);
  line-height: 1.7;
  color: var(--ink-soft);
  max-width: 30ch;
}
.js .hero-sub { opacity: 0; }
.hero-scroll {
  position: absolute;
  left: var(--gutter); bottom: clamp(1.5rem, 4vh, 3rem);
  z-index: 1;
  display: inline-flex; align-items: center; gap: 0.7em;
  font-family: var(--font-head);
  font-size: 0.72rem; letter-spacing: 0.22em;
  color: var(--metal-dark);
}
.js .hero-scroll { opacity: 0; }
.hero-scroll .bar {
  width: 42px; height: 1px; background: var(--metal-grad); position: relative; overflow: hidden;
}
.hero-scroll .bar::after {
  content: ""; position: absolute; inset: 0; width: 40%;
  background: var(--ink);
  animation: scrollHint 2.4s var(--ease) infinite;
}
@keyframes scrollHint {
  0% { transform: translateX(-100%); }
  60%,100% { transform: translateX(260%); }
}

/* =========================================================
   共通セクション
   ========================================================= */
.section { padding: clamp(4.5rem, 12vh, 9rem) 0; position: relative; }
.section-head { max-width: 46ch; margin-bottom: clamp(2.5rem, 6vw, 4rem); }
.section-title {
  font-size: clamp(1.7rem, 5.5vw, 3rem);
  line-height: 1.25;
  letter-spacing: 0.01em;
  color: var(--ink);
  margin-top: 0.6rem;
}
.section-title.on-dark { color: var(--paper); }

/* リード */
.lead { background: var(--paper); }
.lead-text {
  font-family: var(--font-head);
  font-weight: 400;
  font-size: clamp(1.15rem, 3.6vw, 1.7rem);
  line-height: 2.1;
  color: var(--ink);
  max-width: 34ch;
}
.lead-text strong { font-weight: 700; }

/* カテゴリ */
.cats { background: var(--cream); }
.cat-grid {
  display: grid;
  gap: clamp(1.2rem, 2.5vw, 1.8rem);
  grid-template-columns: 1fr;
}
@media (min-width: 760px) { .cat-grid { grid-template-columns: repeat(3, 1fr); } }
.cat-card {
  position: relative;
  background: var(--paper);
  border: 1px solid color-mix(in srgb, var(--ink) 8%, transparent);
  border-radius: var(--radius-lg);
  padding: clamp(1.8rem, 4vw, 2.6rem);
  overflow: hidden;
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease), border-color 0.5s var(--ease);
}
.cat-card::before { /* 自作SVG葉モチーフの気配 */
  content: "";
  position: absolute; right: -30px; top: -30px;
  width: 130px; height: 130px;
  background: radial-gradient(circle at 30% 30%, var(--green-100), transparent 70%);
  opacity: 0.6; transition: opacity 0.5s var(--ease), transform 0.6s var(--ease);
}
.cat-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 50px -28px color-mix(in srgb, var(--green-deep) 55%, transparent);
  border-color: color-mix(in srgb, var(--green-500) 40%, transparent);
}
.cat-card:hover::before { opacity: 1; transform: scale(1.15); }
.cat-num {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  color: var(--metal-dark);
}
.cat-name {
  font-size: clamp(1.35rem, 4.5vw, 1.7rem);
  margin: 0.7rem 0 0.9rem;
  color: var(--green-deep);
}
.cat-desc { color: var(--ink-soft); font-size: 0.98rem; line-height: 1.95; }

/* 最新記事カード */
.articles-sec { background: var(--paper); }
.card-grid {
  display: grid;
  gap: clamp(1.4rem, 3vw, 2rem);
  grid-template-columns: 1fr;
}
@media (min-width: 760px) { .card-grid { grid-template-columns: repeat(3, 1fr); } }
/* トップ最新5枚: 1行目=2枚（大）/ 2行目=3枚 のマガジン組み */
@media (min-width: 760px) {
  .card-grid.grid-5 { grid-template-columns: repeat(6, 1fr); }
  .card-grid.grid-5 > *:nth-child(1),
  .card-grid.grid-5 > *:nth-child(2) { grid-column: span 3; }
  .card-grid.grid-5 > *:nth-child(3),
  .card-grid.grid-5 > *:nth-child(4),
  .card-grid.grid-5 > *:nth-child(5) { grid-column: span 2; }
  /* トップ最新6枚: 3列×2段で均等に美しく（あぶれなし） */
  .card-grid.grid-6 { grid-template-columns: repeat(3, 1fr); }
}
.article-card {
  display: flex; flex-direction: column;
  background: var(--cream);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--ink) 7%, transparent);
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease);
}
.article-card:hover { transform: translateY(-6px); box-shadow: 0 26px 54px -30px color-mix(in srgb, var(--green-deep) 60%, transparent); }
/* 差し替え想定: .card-visual に後日ComfyUI画像を入れる(<img loading="lazy" alt=…>)。今はSVG/グラデで成立 */
.card-visual {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.card-visual svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.card-visual img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 0.7s var(--ease); }
.article-card:hover .card-visual img { transform: scale(1.05); }
.card-visual.v-souba  { background: linear-gradient(150deg, #234f3d, #14332a); }
.card-visual.v-heat   { background: linear-gradient(150deg, #3a6b51, #1c4232); }
.card-visual.v-niwa   { background: linear-gradient(150deg, #4a7a5e, #234f3d); }
.card-visual.v-tsuchi { background: linear-gradient(150deg, #6b5d47, #3a3226); } /* 土＝陶土の茶 */
.card-visual.v-fuyu   { background: linear-gradient(150deg, #405a63, #1c2f33); } /* 冬＝底冷えの青緑 */
.card-visual.v-taifu  { background: linear-gradient(150deg, #545e63, #2a3236); } /* 台風＝嵐の鈍色 */
.card-body { padding: clamp(1.4rem, 3.5vw, 2rem); display: flex; flex-direction: column; gap: 0.7rem; flex: 1; }
.card-cat {
  font-family: var(--font-head);
  font-size: 0.72rem; font-weight: 500; letter-spacing: 0.18em;
  color: var(--green-700);
}
.card-title {
  font-size: clamp(1.2rem, 4vw, 1.45rem);
  line-height: 1.45;
  color: var(--ink);
}
.card-excerpt { font-size: 0.95rem; color: var(--ink-soft); line-height: 1.9; }
.card-more {
  margin-top: auto;
  font-family: var(--font-head);
  font-size: 0.85rem; font-weight: 500; letter-spacing: 0.08em;
  color: var(--green-700);
  display: inline-flex; align-items: center; gap: 0.5em;
}
.card-more .arw { transition: transform 0.4s var(--ease); }
.article-card:hover .card-more .arw { transform: translateX(6px); }

/* =========================================================
   監修者セクション(トップ) — 深緑面
   ========================================================= */
.supervisor {
  background: var(--green-deep);
  color: var(--paper);
  position: relative;
  overflow: hidden;
}
.supervisor::before { /* 等高線の気配 */
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(60% 60% at 15% 20%, color-mix(in srgb, var(--green-500) 55%, transparent), transparent 70%),
    radial-gradient(50% 50% at 90% 90%, color-mix(in srgb, #000 30%, transparent), transparent 70%);
  opacity: 0.9; z-index: 0;
}
.supervisor .wrap { position: relative; z-index: 1; }
.supervisor .eyebrow { color: var(--metal-lite); }
.supervisor .eyebrow::before { background: var(--metal-lite); }
.sup-title {
  font-size: clamp(1.5rem, 5vw, 2.7rem);
  line-height: 1.4;
  color: var(--paper);
  max-width: 22ch;
  margin: 0.8rem 0 1.6rem;
}
.sup-body {
  font-size: clamp(1rem, 2.6vw, 1.12rem);
  line-height: 2.1;
  color: color-mix(in srgb, var(--paper) 82%, var(--green-300));
  max-width: 52ch;
}
.sup-body p + p { margin-top: 1.1rem; }
.sup-meta {
  margin-top: clamp(2rem, 5vw, 3rem);
  display: flex; flex-wrap: wrap; align-items: center; gap: 1.2rem 2.4rem;
  padding-top: 1.8rem;
  border-top: 1px solid color-mix(in srgb, var(--metal-lite) 30%, transparent);
}
.sup-fig { display: flex; flex-direction: column; }
.sup-fig .num {
  font-family: var(--font-head); font-weight: 900;
  font-size: clamp(2.2rem, 8vw, 3.4rem); line-height: 1;
  color: var(--metal-lite);
}
.sup-fig .lbl { font-size: 0.82rem; letter-spacing: 0.1em; color: color-mix(in srgb, var(--paper) 70%, transparent); margin-top: 0.4rem; }
.sup-link {
  font-family: var(--font-head); font-weight: 500; letter-spacing: 0.06em;
  color: var(--paper);
  display: inline-flex; align-items: center; gap: 0.6em;
  border-bottom: 1px solid var(--metal-lite);
  padding-bottom: 0.2em;
  transition: gap 0.4s var(--ease);
}
.sup-link:hover { gap: 1em; }

/* =========================================================
   フッター
   ========================================================= */
.site-footer {
  background: var(--ink);
  color: color-mix(in srgb, var(--cream) 80%, transparent);
  padding: clamp(3.5rem, 9vh, 6rem) 0 2.5rem;
}
.footer-lead {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: clamp(1.3rem, 5vw, 2.2rem);
  line-height: 1.5;
  color: var(--paper);
  max-width: 22ch;
  margin-bottom: clamp(2.5rem, 6vw, 3.5rem);
}
.footer-grid {
  display: grid; gap: 2rem;
  grid-template-columns: 1fr;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid color-mix(in srgb, var(--cream) 16%, transparent);
}
@media (min-width: 680px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; } }
.footer-col h3 {
  font-size: 0.78rem; font-weight: 500; letter-spacing: 0.18em;
  color: var(--metal); margin-bottom: 1.1rem;
}
.footer-col li { margin-bottom: 0.7rem; }
.footer-col a { color: color-mix(in srgb, var(--cream) 78%, transparent); font-size: 0.95rem; transition: color 0.3s var(--ease); }
.footer-col a:hover { color: var(--paper); }
.footer-brand .brand { color: var(--paper); font-size: 1.4rem; }
.footer-brand .brand .brand-mark { color: var(--green-300); }
.footer-note { font-size: 0.85rem; line-height: 1.9; color: color-mix(in srgb, var(--cream) 60%, transparent); margin-top: 1rem; max-width: 34ch; }
.footer-bottom {
  margin-top: 2rem; display: flex; flex-wrap: wrap; gap: 0.6rem 1.5rem; justify-content: space-between;
  font-size: 0.8rem; color: color-mix(in srgb, var(--cream) 55%, transparent);
}

/* =========================================================
   記事ページ
   ========================================================= */
.article-hero {
  padding: clamp(8rem, 18vh, 12rem) 0 clamp(2.5rem, 6vh, 4rem);
  background: var(--paper);
  position: relative; overflow: hidden;
}
.article-hero .wrap { max-width: 820px; }
.breadcrumb { font-size: 0.82rem; letter-spacing: 0.06em; color: var(--ink-faint); margin-bottom: 1.4rem; }
.breadcrumb a:hover { color: var(--green-700); }
.breadcrumb .sep { margin: 0 0.5em; color: var(--metal); }
.article-cat {
  font-family: var(--font-head); font-weight: 500;
  font-size: 0.78rem; letter-spacing: 0.18em; color: var(--green-700);
}
.article-title {
  font-size: clamp(1.9rem, 7vw, 3.4rem);
  line-height: 1.28; letter-spacing: 0.01em;
  color: var(--ink); margin: 0.9rem 0 1.6rem;
}

/* 監修バッジ */
.sup-badge {
  display: inline-flex; align-items: center; gap: 0.9rem;
  padding: 0.85rem 1.3rem 0.85rem 0.95rem;
  background: var(--paper);
  border: 1px solid transparent;
  border-radius: 999px;
  position: relative;
  background-image:
    linear-gradient(var(--paper), var(--paper)),
    var(--metal-grad);
  background-origin: border-box;
  background-clip: padding-box, border-box;
  box-shadow: 0 10px 30px -18px color-mix(in srgb, var(--green-deep) 60%, transparent);
}
.sup-badge .seal {
  flex: none;
  width: 40px; height: 40px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--green-deep);
  color: var(--metal-lite);
  font-family: var(--font-head); font-weight: 900; font-size: 0.95rem;
  letter-spacing: 0.02em;
}
.sup-badge .txt { display: flex; flex-direction: column; line-height: 1.3; }
.sup-badge .txt .k { font-size: 0.66rem; letter-spacing: 0.2em; color: var(--metal-dark); font-family: var(--font-head); font-weight: 500; }
.sup-badge .txt .v { font-size: 0.92rem; font-weight: 700; font-family: var(--font-head); color: var(--ink); letter-spacing: 0.01em; }
.sup-badge .txt .m { font-size: 0.72rem; color: var(--ink-soft); }
@media (max-width: 480px) {
  .sup-badge { border-radius: 20px; padding: 0.85rem 1rem; }
  .sup-badge .txt .v { font-size: 0.85rem; }
}
.article-meta-row {
  margin-top: 1.6rem;
  display: flex; flex-wrap: wrap; gap: 0.4rem 1.4rem;
  font-size: 0.82rem; color: var(--ink-faint);
}

/* 記事冒頭ビジュアル */
.article-figure {
  max-width: 820px;
  margin: clamp(1.8rem, 4vw, 2.6rem) auto 0;
  padding-inline: var(--gutter);
}
.article-figure .frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 3 / 2;
  box-shadow: 0 30px 62px -34px color-mix(in srgb, var(--green-deep) 55%, transparent);
}
.article-figure img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* 記事本文(prose) */
.prose {
  --gutter-prose: clamp(1.8rem, 7.5vw, 4rem);
  max-width: calc(720px + 2 * var(--gutter-prose));
  margin-inline: auto;
  padding: clamp(2.5rem, 6vh, 4rem) var(--gutter-prose) clamp(4rem, 10vh, 7rem);
}
.prose > * + * { margin-top: 1.5rem; }
.prose p { font-size: clamp(1.05rem, 2.7vw, 1.15rem); line-height: 2.1; color: var(--ink); }
.prose h2 {
  font-size: clamp(1.4rem, 5vw, 2rem);
  line-height: 1.4; color: var(--green-deep);
  margin-top: clamp(2.8rem, 7vw, 4rem);
  padding-top: 1.4rem;
  border-top: 1px solid color-mix(in srgb, var(--ink) 10%, transparent);
  position: relative;
}
.prose h2::before {
  content: ""; position: absolute; top: -1px; left: 0;
  width: 48px; height: 2px; background: var(--metal-grad);
}
.prose h3 {
  font-size: clamp(1.15rem, 4vw, 1.4rem);
  color: var(--green-700); margin-top: 2.2rem;
}
.prose strong { font-weight: 700; color: var(--green-deep); }
.prose .lead-p {
  font-size: clamp(1.15rem, 3.2vw, 1.35rem);
  line-height: 2; color: var(--ink);
  font-family: var(--font-head); font-weight: 500;
}
.prose .pull {
  margin: clamp(2.5rem, 6vw, 3.5rem) 0;
  padding: 1.6rem clamp(1.4rem, 4vw, 2.2rem);
  border-left: 3px solid var(--green-500);
  background: color-mix(in srgb, var(--green-100) 30%, var(--paper));
  border-radius: 0 var(--radius) var(--radius) 0;
  font-family: var(--font-head); font-weight: 500;
  font-size: clamp(1.1rem, 3vw, 1.3rem); line-height: 1.9; color: var(--green-deep);
}

/* よくある質問（記事末・proseの流れに馴染む Q/A 意匠） */
.prose .faq-q { position: relative; padding-left: 1.9rem; }
.prose .faq-q::before {
  content: "Q"; position: absolute; left: 0; top: 0.02em;
  font-family: var(--font-head); font-weight: 900; font-size: 1em;
  color: var(--metal-dark); line-height: 1.4;
}
.prose .faq-a { position: relative; padding-left: 1.9rem; }
.prose .faq-a::before {
  content: "A"; position: absolute; left: 0; top: 0;
  font-family: var(--font-head); font-weight: 900; font-size: 1em;
  color: var(--green-300); line-height: 2.1;
}

/* 記事末: 監修者への導線 */
.article-cta {
  background: var(--green-deep); color: var(--paper);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 5vw, 3rem);
  margin: 0 auto clamp(4rem, 9vh, 6rem);
  max-width: min(720px, calc(100% - 2 * var(--gutter)));
  position: relative; overflow: hidden;
}
/* 末尾に移した監修バッジ（深緑ボックスの上で白カプセルが映える） */
.article-cta .sup-badge { margin-bottom: 1.5rem; box-shadow: 0 14px 36px -18px rgba(0,0,0,0.55); }
.article-cta h2 { color: var(--paper); font-size: clamp(1.3rem, 4vw, 1.8rem); border: 0; padding: 0; margin: 0 0 0.9rem; }
.article-cta h2::before { display: none; }
.article-cta p { color: color-mix(in srgb, var(--paper) 82%, var(--green-300)); font-size: 1rem; line-height: 1.95; }
.article-cta .sup-link { margin-top: 1.6rem; }

/* 記事一覧(記事下) */
.more-articles { background: var(--cream); }

/* =========================================================
   about ページ
   ========================================================= */
.page-hero {
  padding: clamp(8rem, 18vh, 12rem) 0 clamp(2rem, 5vh, 3.5rem);
  background: var(--paper);
}
.page-hero .wrap { max-width: 820px; }
.page-title { font-size: clamp(2rem, 8vw, 4rem); line-height: 1.15; color: var(--ink); margin: 0.8rem 0; }
.page-tagline { font-family: var(--font-head); font-weight: 500; color: var(--green-700); font-size: clamp(1.1rem, 3.4vw, 1.5rem); letter-spacing: 0.08em; }

.about-body { --gutter-prose: clamp(1.8rem, 7.5vw, 4rem); max-width: calc(720px + 2 * var(--gutter-prose)); margin-inline: auto; padding: clamp(2.5rem, 6vh, 4rem) var(--gutter-prose) clamp(4rem, 10vh, 7rem); }
.about-body > * + * { margin-top: 1.4rem; }
.about-body p { font-size: clamp(1.05rem, 2.7vw, 1.15rem); line-height: 2.1; }
.about-body h2 {
  font-size: clamp(1.5rem, 5vw, 2.2rem); color: var(--green-deep);
  margin-top: clamp(3rem, 7vw, 4.5rem); padding-top: 1.4rem;
  border-top: 1px solid color-mix(in srgb, var(--ink) 10%, transparent);
}
.about-body h3 { font-size: clamp(1.2rem, 4vw, 1.5rem); color: var(--green-700); margin-top: 2.4rem; }
.about-body strong { font-weight: 700; color: var(--green-deep); }
.about-disclosure {
  margin-top: clamp(3rem, 7vw, 4rem);
  padding: clamp(1.6rem, 4vw, 2.4rem);
  background: var(--green-deep); color: var(--paper);
  border-radius: var(--radius-lg);
}
.about-disclosure p { color: color-mix(in srgb, var(--paper) 85%, var(--green-300)); font-size: 0.98rem; }
.about-disclosure strong { color: var(--metal-lite); }

/* =========================================================
   スクロール演出(IntersectionObserver)
   ========================================================= */
/* JSがある時だけ初期状態を隠す（JS無効でも本文は必ず見える＝SEO/アクセシビリティ保険） */
.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease); }
.js .reveal.in { opacity: 1; transform: none; }
.js .reveal-left { opacity: 0; transform: translateX(-32px); transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease); }
.js .reveal-left.in { opacity: 1; transform: none; }
/* stagger: 子要素に遅延 */
.js [data-stagger] > * { opacity: 0; transform: translateY(30px); transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease); }
.js [data-stagger].in > * { opacity: 1; transform: none; }
[data-stagger].in > *:nth-child(1) { transition-delay: 0.05s; }
[data-stagger].in > *:nth-child(2) { transition-delay: 0.15s; }
[data-stagger].in > *:nth-child(3) { transition-delay: 0.25s; }
[data-stagger].in > *:nth-child(4) { transition-delay: 0.35s; }
[data-stagger].in > *:nth-child(5) { transition-delay: 0.45s; }

/* ヒーローの立ち上げ(JSでhero-inにクラス付与) */
.hero.hero-in .word { transform: none; transition: transform 1.1s var(--ease); }
.hero.hero-in .hero-title .word { transition-delay: calc(var(--wi, 0) * 0.09s); }
.hero.hero-in .eyebrow,
.hero.hero-in .hero-sub,
.hero.hero-in .hero-scroll { opacity: 1; transition: opacity 1s var(--ease); }
.hero.hero-in .eyebrow { transition-delay: 0.1s; }
.hero.hero-in .hero-sub { transition-delay: 0.6s; }
.hero.hero-in .hero-scroll { transition-delay: 0.9s; }

/* =========================================================
   動きの増強（Apple級）— v2 / 質の高い動きを随所に
   ========================================================= */

/* アンカー着地をヘッダー分だけ逃がす */
html { scroll-padding-top: 92px; }

/* ヘッダー: スクロール方向で隠す/出す（下で隠れ、上で現れる） */
.site-header {
  will-change: transform;
  transition: transform 0.5s var(--ease), padding 0.4s var(--ease), background 0.4s var(--ease),
              box-shadow 0.4s var(--ease), backdrop-filter 0.4s var(--ease);
}
.site-header.header-hidden { transform: translateY(-100%); }

/* ヒーロー多層パララックス（写真・等高線・文字で速度差）*/
.hero-media img { transform: scale(1.06); will-change: transform; }
.hero-inner { will-change: transform, opacity; }

/* 見出しの文字リビール（JSが .rw 化して1文字ずつ立ち上げる）*/
.js .rw .rw-char {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.42em);
  transition: opacity 0.6s var(--ease), transform 0.72s var(--ease);
  transition-delay: calc(var(--ci, 0) * 0.024s);
  will-change: transform, opacity;
}
.js .rw.is-in .rw-char { opacity: 1; transform: none; }

/* カード/冒頭figure の写真: スクロールインでスケール＆明度が立ち上がる */
.js .card-visual img,
.js .article-figure .frame img {
  opacity: 0;
  transform: scale(1.09);
  filter: brightness(0.78) saturate(0.92);
  transition: opacity 1s var(--ease), transform 1.15s var(--ease), filter 1.15s var(--ease);
}
.js .card-visual.is-in img,
.js .article-figure.is-in .frame img { opacity: 1; transform: none; filter: none; }
/* hover は立ち上がり後に効く（微スケール＋わずかに明るく） */
.article-card:hover .card-visual img { transform: scale(1.06); filter: brightness(1.03); }

/* prose を1ブロックずつ静かに立ち上げる（読書の呼吸・控えめ） */
.js .prose > * { opacity: 0; transform: translateY(16px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.js .prose > *.is-in { opacity: 1; transform: none; }

/* カテゴリカード: 立体感の強化＋番号と上辺の境界光 */
.cat-num { display: inline-block; transition: color 0.4s var(--ease), letter-spacing 0.5s var(--ease); }
.cat-card:hover .cat-num { color: var(--green-700); letter-spacing: 0.26em; }
.cat-card:hover {
  box-shadow: 0 34px 66px -30px color-mix(in srgb, var(--green-deep) 62%, transparent),
              0 0 0 1px color-mix(in srgb, var(--green-500) 45%, transparent);
}
.cat-card::after {
  content: ""; position: absolute; left: 0; top: 0; height: 2px; width: 100%;
  background: var(--metal-grad);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.6s var(--ease);
}
.cat-card:hover::after { transform: scaleX(1); }

/* 監修セクション: 突入時に等高線がごく緩やかに漂う（reduced-motionで停止） */
.supervisor.is-in::before { animation: contourDrift 24s ease-in-out infinite alternate; }
@keyframes contourDrift {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  100% { transform: translate3d(2.5%, -1.8%, 0) scale(1.09); }
}

/* フッター: 深緑グローの微ドリフト（世界観の締め） */
.site-footer { position: relative; overflow: hidden; }
.site-footer::before {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: radial-gradient(42% 62% at 12% 118%, color-mix(in srgb, var(--green-700) 42%, transparent), transparent 70%);
  opacity: 0.5;
}
.site-footer.is-in::before { animation: contourDrift 28s ease-in-out infinite alternate; }
.site-footer .wrap { position: relative; z-index: 1; }

/* 読了プログレスバー（記事上部の細い深緑線・JSが生成） */
.read-progress {
  position: fixed; left: 0; top: 0; z-index: 200;
  height: 3px; width: 100%;
  transform: scaleX(0); transform-origin: left;
  background: linear-gradient(90deg, var(--green-700), var(--green-500), var(--metal));
  will-change: transform; pointer-events: none;
}

/* =========================================================
   記事の挿絵（本文中figure）＋ Apple式スクラブ v3
   ========================================================= */
.body-figure {
  margin-block: clamp(2rem, 5.5vw, 3.4rem);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 26px 54px -32px color-mix(in srgb, var(--green-deep) 52%, transparent);
}
.body-figure img { width: 100%; height: auto; display: block; }

/* フォールバック（animation-timeline非対応）: IntersectionObserverの is-in で立ち上げ */
.js .body-figure img {
  opacity: 0; transform: scale(1.09); filter: brightness(0.8) saturate(0.94);
  transition: opacity 1s var(--ease), transform 1.15s var(--ease), filter 1.15s var(--ease);
}
.js .body-figure.is-in img { opacity: 1; transform: none; filter: none; }

/* Apple式ケンバーンズ・スクラブ（対応ブラウザ＋motion許可時のみ） */
@keyframes figKenburns {
  from { transform: scale(1.08); filter: brightness(0.85) saturate(0.95); }
  to   { transform: scale(1);    filter: brightness(1)    saturate(1); }
}
@keyframes figParallax {
  from { transform: translateY(-3.6%) scale(1.12); }
  to   { transform: translateY(3.6%)  scale(1.12); }
}
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    /* 本文挿絵：ケンバーンズ（ゆっくりズーム＋明度） */
    .js .body-figure img {
      opacity: 1; transform: none; filter: none;
      animation: figKenburns linear both;
      animation-timeline: view();
      animation-range: entry 6% cover 46%;
    }
    /* 冒頭figure：内部パララックス（imgをframe内でtranslateYスクラブ） */
    .js .article-figure .frame img {
      opacity: 1; filter: none;
      animation: figParallax linear both;
      animation-timeline: view();
      animation-range: cover 0% cover 100%;
    }
  }
}

/* 監修セクションの sticky ピン・スクラブ（indexのみ / 対応＋motion許可時）
   非対応・reduced-motion では通常セクション＋既存revealのまま */
@keyframes supUp { from { opacity: 0; transform: translateY(42px) scale(0.965); } to { opacity: 1; transform: none; } }
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .sup-pin { padding: 0; }
    .sup-pin .sup-pin-track {
      position: relative;
      height: 165vh;
      view-timeline-name: --suppin;
      view-timeline-axis: block;
    }
    .sup-pin .sup-pin-stage {
      position: sticky; top: 0;
      min-height: 100vh;
      display: flex; flex-direction: column; justify-content: center;
      padding-block: clamp(4.5rem, 12vh, 9rem);
    }
    /* フォールバックrevealの初期隠しを打ち消し、スクラブに委ねる */
    .js .sup-pin .reveal-left, .js .sup-pin .sup-meta { opacity: 1; transform: none; }
    .sup-pin .eyebrow,
    .sup-pin .sup-title,
    .sup-pin .sup-body,
    .sup-pin .sup-meta {
      animation: supUp linear both;
      animation-timeline: --suppin;
      will-change: transform, opacity;
    }
    .sup-pin .eyebrow   { animation-range: cover 6%  cover 20%; }
    .sup-pin .sup-title { animation-range: cover 14% cover 36%; }
    .sup-pin .sup-body  { animation-range: cover 30% cover 54%; }
    .sup-pin .sup-meta  { animation-range: cover 46% cover 70%; }
  }
}

/* =========================================================
   動きの増強 v3.5 —「大胆に、だが酔わせない」
   ========================================================= */

/* 合成transform用のカスタムプロパティ（入場スクラブとhover持ち上げを両立） */
@property --card-rise { syntax: "<length>"; inherits: false; initial-value: 0px; }
@property --card-op   { syntax: "<number>"; inherits: false; initial-value: 1; }

/* 1. 等高線が描かれていく（ヒーロー=ロード時 / フッター=スクロールイン） */
.js .hero-svg .contour { stroke-dasharray: 2000; stroke-dashoffset: 2000; }
.hero.hero-in .hero-svg .contour { animation: drawLine 2.6s var(--ease) forwards; }
.hero.hero-in .hero-svg .contours .contour:nth-child(1) { animation-delay: 0.05s; }
.hero.hero-in .hero-svg .contours .contour:nth-child(2) { animation-delay: 0.22s; }
.hero.hero-in .hero-svg .contours .contour:nth-child(3) { animation-delay: 0.38s; }
.hero.hero-in .hero-svg .contours .contour:nth-child(4) { animation-delay: 0.14s; }
.hero.hero-in .hero-svg .contours .contour:nth-child(5) { animation-delay: 0.30s; }
.hero.hero-in .hero-svg .contours .contour:nth-child(6) { animation-delay: 0.46s; }
.hero.hero-in .hero-svg .leaf .contour { animation-delay: 0.75s; }
@keyframes drawLine { to { stroke-dashoffset: 0; } }

/* フッター等高線（JSが .footer-svg を注入。スクロールインで線が引かれる） */
.footer-svg { position: absolute; inset: auto 0 0 0; width: 100%; height: 62%; z-index: 0; pointer-events: none; opacity: 0.5; }
.footer-svg path { fill: none; stroke: var(--green-300); stroke-width: 1; }
.footer-svg path.accent { stroke: var(--metal); }
.js .footer-svg path { stroke-dasharray: 2400; stroke-dashoffset: 2400; transition: stroke-dashoffset 2.4s var(--ease); }
.js .site-footer.is-in .footer-svg path { stroke-dashoffset: 0; }
.js .site-footer.is-in .footer-svg path:nth-child(2) { transition-delay: 0.28s; }
.js .site-footer.is-in .footer-svg path:nth-child(3) { transition-delay: 0.54s; }

/* 2. 記事内H2の文字リビール（char animに委ね、block-hideを無効化） */
.js .prose > h2.rw { opacity: 1; transform: none; }

/* 2. カードグリッド：1枚ずつ view() スクラブで立ち上がる（対応時のみ）
   transformはスクラブ専用にし（transition対象から外す）スクロールが滑らかに。
   hoverは影の深まり＋画像パンで応える（持ち上げは非対応時の既存挙動に委ねる）。 */
@keyframes cardRise { from { --card-rise: 48px; --card-op: 0; } to { --card-rise: 0px; --card-op: 1; } }
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .js .card-grid > .article-card,
    .js .card-grid.in > .article-card,
    .js .cat-grid > .cat-card,
    .js .cat-grid.in > .cat-card {
      opacity: var(--card-op);
      transform: translateY(var(--card-rise));
      transition: box-shadow 0.5s var(--ease), border-color 0.5s var(--ease);
      animation: cardRise linear both;
      animation-timeline: view();
      animation-range: entry 0% cover 30%;
    }
  }
}

/* 3. セクション背景のトーン遷移（cream→paper→深緑寄り・body全体でごく淡く漂う） */
@keyframes toneDrift {
  0%   { background-color: var(--cream); }
  55%  { background-color: var(--paper); }
  100% { background-color: color-mix(in srgb, var(--green-deep) 14%, var(--cream)); }
}
@supports (animation-timeline: scroll()) {
  @media (prefers-reduced-motion: no-preference) {
    body { animation: toneDrift linear both; animation-timeline: scroll(root block); }
  }
}

/* 4. 開幕の幕（JS生成・セッション初回のみ・1秒級） */
.intro-curtain {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--cream);
  display: grid; place-items: center;
  will-change: transform;
}
.intro-curtain .intro-brand {
  font-family: var(--font-head); font-weight: 900;
  font-size: clamp(1.7rem, 6vw, 2.8rem); letter-spacing: 0.06em; color: var(--ink);
  text-align: center; opacity: 0; transform: translateY(14px);
}
.intro-curtain .intro-brand .m { color: var(--green-700); }
.intro-curtain .intro-brand .t {
  display: block; margin-top: 0.7em;
  font-size: 0.42em; font-weight: 500; letter-spacing: 0.2em; color: var(--metal-dark);
}
.intro-curtain.show .intro-brand { opacity: 1; transform: none; transition: opacity 0.45s var(--ease), transform 0.5s var(--ease); }
.intro-curtain.lift { transform: translateY(-100%); transition: transform 0.62s cubic-bezier(0.7, 0, 0.2, 1); }

/* 5. ホバー：カード画像のわずかなパン＋ズーム / フッターリンクの下線ワイプ */
.article-card:hover .card-visual img { transform: scale(1.08) translate3d(-1.4%, -1%, 0); filter: brightness(1.05); }
.footer-col a {
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 0% 1px; background-position: 0 100%; background-repeat: no-repeat;
  transition: color 0.3s var(--ease), background-size 0.45s var(--ease);
}
.footer-col a:hover { background-size: 100% 1px; }

/* 6. 監修「60年」：金属グラデ文字＋突入ポップ */
.sup-fig .num {
  background: var(--metal-grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.supervisor.is-in .sup-fig .num { animation: numPop 1.1s var(--ease) both; }
@keyframes numPop {
  0%   { transform: scale(0.78); opacity: 0; }
  60%  { transform: scale(1.05); }
  100% { transform: scale(1); opacity: 1; }
}

/* =========================================================
   動きを減らす設定(酔わない配慮・60代の読者)
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .hero-title .word { transform: none !important; }
  .reveal, .reveal-left, [data-stagger] > * { opacity: 1 !important; transform: none !important; }
  .hero .eyebrow, .hero-sub, .hero-scroll { opacity: 1 !important; }
  .hero-svg { transform: none !important; }
  /* v2 増強分の無効化 */
  .site-header.header-hidden { transform: none !important; }
  .hero-media img, .hero-inner { transform: none !important; opacity: 1 !important; filter: none !important; }
  .rw .rw-char { opacity: 1 !important; transform: none !important; }
  .card-visual img, .article-figure .frame img, .body-figure img {
    opacity: 1 !important; transform: none !important; filter: none !important; animation: none !important;
  }
  .prose > * { opacity: 1 !important; transform: none !important; }
  /* sticky ピンは無効化（通常フローに戻す） */
  .sup-pin .sup-pin-track { height: auto !important; }
  .sup-pin .sup-pin-stage { position: static !important; min-height: 0 !important; }
  .sup-pin .eyebrow, .sup-pin .sup-title, .sup-pin .sup-body, .sup-pin .sup-meta { animation: none !important; }
  .supervisor.is-in::before, .site-footer.is-in::before { animation: none !important; }
  .read-progress { display: none !important; }
  /* v3.5 増強分の無効化 */
  .hero-svg .contour { stroke-dasharray: none !important; stroke-dashoffset: 0 !important; animation: none !important; }
  .footer-svg path { stroke-dasharray: none !important; stroke-dashoffset: 0 !important; transition: none !important; }
  [data-stagger] > * { animation: none !important; }
  .card-grid > .article-card, .cat-grid > .cat-card { transform: none !important; opacity: 1 !important; animation: none !important; }
  .supervisor.is-in .sup-fig .num { animation: none !important; }
  body { animation: none !important; }
  .intro-curtain { display: none !important; }
}

/* =========================================================
   ブランドロゴ（年輪×等高線の紋） — のぶなが追加
   ========================================================= */
.brand { align-items: center; }
.brand-logo {
  width: clamp(26px, 3vw, 32px);
  height: auto;
  flex: 0 0 auto;
  transition: width 0.4s var(--ease), transform 0.6s var(--ease);
}
.brand:hover .brand-logo { transform: rotate(14deg); }
.is-scrolled .brand-logo { width: 23px; }
@media (prefers-reduced-motion: reduce) {
  .brand-logo, .brand:hover .brand-logo { transition: none !important; transform: none !important; }
}

/* aboutカード: 緑地に年輪の紋（のぶなが追加） */
.card-visual.has-logo {
  display: flex; align-items: center; justify-content: center;
  aspect-ratio: 800 / 547;
  background:
    radial-gradient(120% 140% at 20% 110%, color-mix(in srgb, var(--green-500) 45%, transparent) 0%, transparent 55%),
    linear-gradient(135deg, var(--green-700) 0%, var(--green-deep) 78%);
}
.card-visual.has-logo .card-logo {
  width: 34%; max-width: 120px; height: auto;
  opacity: 0.95;
  transition: transform 0.9s var(--ease);
}
.article-card a:hover .card-visual.has-logo .card-logo { transform: rotate(10deg) scale(1.05); }
@media (prefers-reduced-motion: reduce) {
  .card-visual.has-logo .card-logo { transition: none !important; transform: none !important; }
}

/* スマホのヘッダー均衡（ロゴ導入後の調整・のぶなが） */
.site-header { gap: 1rem; }
@media (max-width: 640px) {
  .brand { gap: 0.45em; }
  .brand-logo { width: 24px; }
  .is-scrolled .brand-logo { width: 21px; }
  /* 「ホーム」はブランドロゴ自体が担うため小画面では畳む */
  .site-nav ul li:first-child { display: none; }
  .site-nav ul { gap: 1.3rem; }
}