/* =============================================================================
   AI実務ノート / シキ — Design System v2「和モダン×ストリート昇華」
   参考(構造抽出): 中川政七商店 / 土屋鞄 / CINRA の「1アクセント主義・明朝ディスプレイ・
   広い余白・目的あるscroll-reveal」を土台に、シキDNA(墨×和紙×琥珀×バンクシー)で再構築。
   AI臭回避の5レバー: 特大明朝 / 非対称と余白 / 1アクセント抑制 / 実テクスチャ / 目的あるモーション
   ============================================================================= */

@import url('https://fonts.googleapis.com/css2?family=Zen+Old+Mincho:wght@400;500;600;700;900&family=Shippori+Mincho:wght@500;600;700;800&family=Noto+Sans+JP:wght@400;500;700&family=Zen+Kaku+Gothic+Antique:wght@500;700;900&family=Archivo:wght@600;700;800&display=swap');

:root {
  /* --- 芯の配色: 和紙 × 墨 × 琥珀(1アクセント) + 朱のスパーク --- */
  --paper:      #f3efe6;   /* 和紙ベース(温かい生成り) */
  --paper-2:    #ece6d9;   /* 一段沈んだ紙 */
  --paper-lift: #faf8f2;   /* 浮いた面(カード/浮遊) */
  --ink:        #17140f;   /* 墨(温black) */
  --ink-2:      #3a352d;   /* 副次テキスト */
  --ink-soft:   #6b6355;   /* キャプション */
  --amber:      #b7651b;   /* 琥珀(主アクセント) */
  --amber-deep: #8f4c12;   /* 琥珀・濃 */
  --amber-glow: #e0954a;   /* 琥珀・光 */
  --shu:        #b8402f;   /* 朱(ストリートのスパーク・多用しない) */
  --line:       #d8cfbe;   /* 細い罫 */
  --line-soft:  #e5ddcd;
  --mist:       #e7e0d2;

  /* --- 書体 --- */
  --mincho:  'Zen Old Mincho', 'Shippori Mincho', serif;   /* ディスプレイ明朝 */
  --mincho2: 'Shippori Mincho', serif;
  --sans:    'Zen Kaku Gothic Antique', 'Noto Sans JP', sans-serif; /* 見出しサンズ */
  --body:    'Noto Sans JP', sans-serif;
  --latin:   'Archivo', sans-serif;   /* 数字/英字の骨太ディスプレイ */

  /* --- リズム --- */
  --wrap: 1200px;
  --wrap-narrow: 760px;
  --gutter: clamp(20px, 5vw, 64px);
  --shadow-soft: 0 1px 2px rgba(23,20,15,.04), 0 8px 30px rgba(23,20,15,.06);
  --shadow-lift: 0 2px 6px rgba(23,20,15,.08), 0 22px 60px rgba(23,20,15,.13);
  --ease: cubic-bezier(.16,.84,.3,1);
  --ease-out: cubic-bezier(.22,1,.36,1);
}

/* --- reset補完(publishでresetが入る想定だが単体でも成立させる) --- */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-weight: 400;
  line-height: 1.9;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* 和紙の微テクスチャ(SVGノイズ・軽量) */
  background-image:
    radial-gradient(circle at 12% -10%, rgba(183,101,27,.045), transparent 42%),
    radial-gradient(circle at 100% 0%, rgba(23,20,15,.035), transparent 38%);
  background-attachment: fixed;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* =========================================================================
   レイアウト土台
   ========================================================================= */
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.wrap-narrow { max-width: var(--wrap-narrow); }
.section { padding-block: clamp(72px, 12vw, 160px); position: relative; }
.section-tight { padding-block: clamp(48px, 7vw, 96px); }

/* eyebrow(小見出しラベル・ストリートの英字) */
.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--latin);
  font-size: .72rem; font-weight: 700; letter-spacing: .28em; text-transform: uppercase;
  color: var(--amber-deep);
  margin: 0 0 22px;
}
.eyebrow::before { content: ""; width: 34px; height: 2px; background: var(--amber); display: inline-block; }
.eyebrow.on-dark { color: var(--amber-glow); }
.eyebrow.on-dark::before { background: var(--amber-glow); }

/* セクション大見出し(明朝) */
.section-head { font-family: var(--mincho); font-weight: 700; line-height: 1.34;
  font-size: clamp(1.7rem, 4.4vw, 3rem); letter-spacing: .02em; margin: 0 0 .5em; }
.section-head em { font-style: normal; color: var(--amber-deep); }
.amber { color: var(--amber-deep); }
.section-lead { color: var(--ink-2); font-size: clamp(.98rem, 1.4vw, 1.08rem); line-height: 2; max-width: 42em; margin: 0; }

/* 縦書き風の章番号(装飾) */
.kicker-num { font-family: var(--latin); font-weight: 800; color: var(--line); font-size: clamp(3rem,7vw,5.5rem); line-height: 1; }

/* =========================================================================
   ヘッダー(細い罫・スクロールで凝縮)
   ========================================================================= */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: saturate(1.2) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background .3s var(--ease), padding .3s var(--ease);
}
.site-header.is-stuck { border-bottom-color: var(--line); background: color-mix(in srgb, var(--paper) 92%, transparent); }
.site-header .bar { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: inline-flex; align-items: baseline; gap: 2px; font-family: var(--mincho); font-weight: 900;
  font-size: 1.32rem; letter-spacing: .06em; color: var(--ink); }
.brand .brand-en { font-family: var(--latin); font-size: .62rem; letter-spacing: .3em; color: var(--ink-soft);
  text-transform: uppercase; margin-left: 10px; align-self: center; }
.nav { display: flex; align-items: center; gap: clamp(14px, 2vw, 30px); }
.nav a { position: relative; font-size: .9rem; font-weight: 500; color: var(--ink-2); padding-block: 6px; letter-spacing: .04em; }
.nav a::after { content: ""; position: absolute; left: 0; bottom: 0; height: 1.5px; width: 0; background: var(--amber);
  transition: width .32s var(--ease-out); }
.nav a:hover { color: var(--ink); }
.nav a:hover::after, .nav a[aria-current="page"]::after { width: 100%; }
.nav-cta { display: inline-flex; align-items: center; gap: 8px; background: var(--ink); color: var(--paper);
  padding: 9px 18px; border-radius: 2px; font-family: var(--sans); font-weight: 700; font-size: .84rem; letter-spacing: .04em;
  transition: background .25s var(--ease), transform .25s var(--ease); }
.nav-cta::after { display: none; }
.nav-cta:hover { background: var(--amber-deep); color: #fff; transform: translateY(-1px); }
.nav-toggle { display: none; }

/* =========================================================================
   ボタン(1本1本作り込む・下線の伸び / 塗りの micro-motion)
   ========================================================================= */
.btn { position: relative; display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--sans); font-weight: 700; font-size: 1rem; letter-spacing: .03em;
  padding: 16px 30px; border-radius: 2px; cursor: pointer; border: none; overflow: hidden;
  transition: transform .3s var(--ease-out), box-shadow .3s var(--ease); }
.btn .txt { position: relative; z-index: 2; }
.btn .arw { position: relative; z-index: 2; width: 18px; height: 18px; transition: transform .3s var(--ease-out); }
.btn:hover .arw { transform: translateX(5px); }

.btn-primary { background: var(--ink); color: var(--paper); box-shadow: var(--shadow-soft); }
.btn-primary::before { content: ""; position: absolute; inset: 0; z-index: 1; background: var(--amber-deep);
  transform: translateY(101%); transition: transform .38s var(--ease-out); }
.btn-primary:hover { color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-lift); }
.btn-primary:hover::before { transform: translateY(0); }

.btn-ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--ink); }
.btn-ghost::before { content: ""; position: absolute; inset: 0; z-index: 1; background: var(--ink);
  transform: scaleX(0); transform-origin: left; transition: transform .36s var(--ease-out); }
.btn-ghost:hover { color: var(--paper); }
.btn-ghost:hover::before { transform: scaleX(1); }

/* テキストリンク(下線がスッと伸びる) */
.link-underline { position: relative; display: inline-flex; align-items: center; gap: 8px; font-weight: 700;
  color: var(--ink); padding-bottom: 3px; }
.link-underline::after { content: ""; position: absolute; left: 0; bottom: 0; height: 1.5px; width: 100%;
  background: var(--amber); transform: scaleX(0); transform-origin: right; transition: transform .34s var(--ease-out); }
.link-underline:hover::after { transform: scaleX(1); transform-origin: left; }
.link-underline .arw { width: 15px; height: 15px; transition: transform .3s var(--ease-out); }
.link-underline:hover .arw { transform: translateX(4px); }

/* =========================================================================
   HERO(非対称・特大明朝・墨テクスチャ画像・staggered reveal)
   ========================================================================= */
.hero { position: relative; padding-top: clamp(40px, 7vw, 90px); padding-bottom: clamp(56px, 9vw, 120px); overflow: clip; }
.hero-grid { display: grid; grid-template-columns: 1.04fr .96fr; gap: clamp(28px, 4vw, 60px); align-items: center; }
.hero-copy { position: relative; z-index: 2; }
.hero h1 { font-family: var(--mincho); font-weight: 900; color: var(--ink);
  font-size: clamp(2.5rem, 6.6vw, 5.1rem); line-height: 1.2; letter-spacing: .015em; margin: .1em 0 .5em;
  word-break: keep-all; line-break: strict; overflow-wrap: normal; }
/* 明朝の大見出し共通で語中改行を止める */
.section-head, .hero h1, .rung .r-title, .feature h3, .statement .q, .motion-band .mb-copy h2 { word-break: keep-all; line-break: strict; }
.hero h1 .amber { color: var(--amber-deep); }
.hero h1 .brush { position: relative; white-space: nowrap; }
.hero h1 .brush::after { content: ""; position: absolute; left: -2%; right: -2%; bottom: .08em; height: .12em;
  background: var(--amber); opacity: .35; border-radius: 2px; }
.hero-sub { font-size: clamp(1rem, 1.5vw, 1.16rem); color: var(--ink-2); line-height: 2.05; max-width: 30em; margin: 0 0 34px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.hero-note { font-size: .82rem; color: var(--ink-soft); margin: 22px 0 0; letter-spacing: .02em; }

.hero-visual { position: relative; }
.hero-frame { position: relative; aspect-ratio: 4/5; border-radius: 3px; overflow: hidden; background: var(--ink);
  box-shadow: var(--shadow-lift); }
.hero-frame img, .hero-frame video { width: 100%; height: 100%; object-fit: cover; transform: scale(1.04); }
.hero-frame video { display: block; }
.hero-frame::after { content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(23,20,15,.28)); }
/* 画像未配置時のプレースホルダ質感(墨面) */
.hero-frame.is-empty { background:
  repeating-linear-gradient(135deg, #201b14 0 22px, #1a1610 22px 44px); }
.hero-frame.is-empty::before { content: "式神"; position: absolute; inset: 0; display: grid; place-items: center;
  font-family: var(--mincho); font-size: clamp(3rem,9vw,6rem); font-weight: 900; color: rgba(224,149,74,.22); }
.hero-tag { position: absolute; left: -18px; bottom: 34px; z-index: 3; background: var(--paper-lift);
  padding: 12px 18px; box-shadow: var(--shadow-lift); border-left: 3px solid var(--amber); }
.hero-tag .t1 { font-family: var(--mincho); font-weight: 700; font-size: .96rem; color: var(--ink); }
.hero-tag .t2 { font-size: .72rem; color: var(--ink-soft); letter-spacing: .04em; }

/* 縦罫の装飾ミニコラム(スクロールで数字が動く土台) */
.hero-strip { display: flex; gap: 0; margin-top: clamp(40px, 6vw, 72px); border-top: 1px solid var(--line); }
.hero-strip .cell { flex: 1; padding: 24px 4px 0; border-right: 1px solid var(--line-soft); }
.hero-strip .cell:last-child { border-right: none; }
.hero-strip .n { font-family: var(--latin); font-weight: 800; font-size: 1rem; color: var(--amber-deep); letter-spacing: .1em; }
.hero-strip .l { font-family: var(--mincho2); font-weight: 600; font-size: clamp(.95rem,1.5vw,1.15rem); color: var(--ink); margin-top: 4px; }
.hero-strip .d { font-size: .78rem; color: var(--ink-soft); margin-top: 6px; line-height: 1.75; }

/* =========================================================================
   LADDER(段=編集的な番号リスト・カード箱にしない)
   ========================================================================= */
.ladder { display: grid; gap: 0; }
.rung { display: grid; grid-template-columns: minmax(90px, .5fr) 1fr auto; gap: clamp(18px, 3vw, 48px);
  align-items: center; padding: clamp(26px, 4vw, 44px) 0; border-top: 1px solid var(--line);
  transition: background .4s var(--ease); }
.rung:last-child { border-bottom: 1px solid var(--line); }
.rung:hover { background: linear-gradient(90deg, rgba(183,101,27,.05), transparent 70%); }
.rung .r-num { font-family: var(--latin); font-weight: 800; font-size: clamp(2.6rem, 6vw, 4.6rem); line-height: 1;
  color: var(--ink); position: relative; }
.rung:hover .r-num { color: var(--amber-deep); }
.rung .r-num::after { content: ""; position: absolute; left: 0; bottom: -8px; height: 2px; width: 0; background: var(--amber);
  transition: width .5s var(--ease-out); }
.rung:hover .r-num::after { width: 46px; }
.rung .r-title { font-family: var(--mincho); font-weight: 700; font-size: clamp(1.15rem, 2.3vw, 1.6rem); color: var(--ink); margin: 0 0 8px; letter-spacing: .01em; }
.rung .r-desc { font-size: .92rem; color: var(--ink-2); line-height: 1.95; margin: 0; max-width: 40em; }
.rung .r-side { text-align: right; white-space: nowrap; }
.rung .r-price { font-family: var(--latin); font-weight: 800; font-size: 1.3rem; color: var(--ink); }
.rung .r-price small { display: block; font-family: var(--body); font-weight: 500; font-size: .7rem; color: var(--ink-soft); letter-spacing: .04em; }
.rung .r-badge { display: inline-block; font-size: .68rem; font-weight: 700; letter-spacing: .12em; color: var(--amber-deep);
  border: 1px solid var(--amber); border-radius: 999px; padding: 3px 12px; margin-bottom: 8px; }

/* =========================================================================
   編集的プロダクト行(image + text交互・均一カード箱を捨てる)
   ========================================================================= */
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 76px); align-items: center; }
.feature + .feature { margin-top: clamp(56px, 8vw, 120px); }
.feature.flip .feature-media { order: 2; }
.feature-media { position: relative; aspect-ratio: 5/4; border-radius: 3px; overflow: hidden; background: var(--paper-2);
  box-shadow: var(--shadow-soft); }
.feature-media img, .feature-media video { width: 100%; height: 100%; object-fit: cover; }

/* 全幅モーション帯(Flow動画・墨のオーバーレイで文字を乗せる) */
.motion-band { position: relative; height: clamp(340px, 52vw, 620px); overflow: hidden; background: var(--ink); }
.motion-band video, .motion-band img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.motion-band::after { content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(23,20,15,.72), rgba(23,20,15,.25) 55%, rgba(23,20,15,.5)); }
.motion-band .mb-copy { position: relative; z-index: 3; height: 100%; display: flex; flex-direction: column; justify-content: center; }
.motion-band .mb-copy h2 { font-family: var(--mincho); font-weight: 900; color: var(--paper);
  font-size: clamp(1.8rem, 5vw, 3.6rem); line-height: 1.35; margin: 0; max-width: 16em; }
.motion-band .mb-copy h2 em { font-style: normal; color: var(--amber-glow); }
.motion-band .mb-copy p { color: rgba(243,239,230,.8); margin: 18px 0 0; max-width: 30em; line-height: 2; }
.feature-media.is-empty { background: repeating-linear-gradient(135deg, #e9e2d3 0 20px, #e3dbc9 20px 40px); }
.feature-kicker { font-family: var(--latin); font-weight: 700; letter-spacing: .2em; font-size: .72rem; color: var(--amber-deep); text-transform: uppercase; }
.feature h3 { font-family: var(--mincho); font-weight: 700; font-size: clamp(1.4rem, 3vw, 2.1rem); line-height: 1.4; margin: 14px 0 16px; }
.feature p { color: var(--ink-2); line-height: 2; margin: 0 0 22px; }

/* =========================================================================
   引用/主張ブロック(墨背景・大明朝・ストリートの見得)
   ========================================================================= */
.statement { background: var(--ink); color: var(--paper); position: relative; overflow: hidden; }
.statement::before { content: "式"; position: absolute; right: -3vw; top: -6vw; font-family: var(--mincho); font-weight: 900;
  font-size: 40vw; line-height: 1; color: rgba(224,149,74,.05); pointer-events: none; }
.statement .q { font-family: var(--mincho); font-weight: 700; font-size: clamp(1.5rem, 4vw, 2.9rem); line-height: 1.6;
  letter-spacing: .02em; max-width: 20em; margin: 0; position: relative; z-index: 2; }
.statement .q em { font-style: normal; color: var(--amber-glow); }
.statement .sig { margin-top: 28px; font-family: var(--mincho2); color: var(--amber-glow); letter-spacing: .1em; position: relative; z-index: 2; }

/* =========================================================================
   診断への導線(帯)
   ========================================================================= */
.band { background: var(--paper-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.band-inner { display: grid; grid-template-columns: 1.3fr auto; gap: 40px; align-items: center; }
.band h2 { font-family: var(--mincho); font-weight: 700; font-size: clamp(1.4rem, 3vw, 2.1rem); margin: 0 0 10px; }
.band p { color: var(--ink-2); margin: 0; line-height: 1.95; }

/* =========================================================================
   記事(エディトリアル・カード箱でなく罫と余白)
   ========================================================================= */
.article-list { display: grid; gap: 0; }
.art-row { display: grid; grid-template-columns: 150px 1fr auto; gap: clamp(18px,3vw,40px); align-items: center;
  padding: clamp(20px,3vw,32px) 0; border-top: 1px solid var(--line-soft); transition: background .35s var(--ease); }
.art-row:last-child { border-bottom: 1px solid var(--line-soft); }
.art-row:hover { background: linear-gradient(90deg, rgba(183,101,27,.045), transparent 60%); }
.art-row .thumb { aspect-ratio: 3/2; border-radius: 2px; overflow: hidden; background: var(--paper-2); }
.art-row .thumb img { width:100%; height:100%; object-fit: cover; transition: transform .6s var(--ease-out); }
.art-row:hover .thumb img { transform: scale(1.06); }
.art-row .date { font-family: var(--latin); font-size: .74rem; letter-spacing: .12em; color: var(--ink-soft); }
.art-row h3 { font-family: var(--mincho); font-weight: 700; font-size: clamp(1.05rem,2vw,1.35rem); line-height: 1.5; margin: 6px 0 0; }
.art-row .go { color: var(--amber-deep); transition: transform .3s var(--ease-out); }
.art-row:hover .go { transform: translateX(5px); }

/* =========================================================================
   フッター
   ========================================================================= */
.site-footer { background: var(--ink); color: var(--paper); padding-block: clamp(48px,7vw,84px); }
.site-footer a { color: var(--paper); opacity: .8; transition: opacity .2s; }
.site-footer a:hover { opacity: 1; color: var(--amber-glow); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
.footer-brand { font-family: var(--mincho); font-weight: 900; font-size: 1.4rem; letter-spacing: .06em; }
.footer-col h4 { font-family: var(--latin); font-size: .72rem; letter-spacing: .2em; text-transform: uppercase; opacity: .6; margin: 0 0 16px; }
.footer-col a { display: block; font-size: .9rem; margin-bottom: 10px; }
.footer-base { margin-top: 48px; padding-top: 22px; border-top: 1px solid rgba(243,239,230,.15); display: flex;
  justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: .78rem; opacity: .6; }

/* =========================================================================
   PR表記 / 汎用
   ========================================================================= */
.pr-notice { background: var(--paper-2); border-left: 3px solid var(--amber); padding: 14px 18px; font-size: .8rem;
  color: var(--ink-soft); line-height: 1.8; border-radius: 2px; }

/* =========================================================================
   Scroll-reveal(目的あるモーション・IntersectionObserverで .in 付与)
   ========================================================================= */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease-out), transform .8s var(--ease-out); will-change: opacity, transform; }
.reveal.in { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: .08s; } .reveal-d2 { transition-delay: .16s; }
.reveal-d3 { transition-delay: .24s; } .reveal-d4 { transition-delay: .32s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .hero-frame img { transform: none; }
}

/* =========================================================================
   拡張コンポーネント v2.1（全ページ伝播用・既存トークンのみ使用）
   ここに定義したものだけで各ページを組む＝AI臭・不揃いを出さない
   ========================================================================= */

/* --- 実績チップ(ヒーロー下の淡い証拠・箱にしない) --- */
.proof-chips { display: flex; flex-wrap: wrap; gap: 10px 22px; margin: 30px 0 0; padding: 0; list-style: none; }
.proof-chips li { position: relative; font-size: .82rem; color: var(--ink-2); letter-spacing: .02em; padding-left: 20px; }
.proof-chips li::before { content: ""; position: absolute; left: 0; top: .62em; width: 9px; height: 9px;
  border: 1.5px solid var(--amber); border-right: none; border-top: none; transform: rotate(-45deg); }
.proof-chips.on-dark li { color: rgba(243,239,230,.82); }

/* --- 読み物プロース(本文の段組み) --- */
.prose { max-width: 40em; }
.prose.center { margin-inline: auto; }
.prose > p { color: var(--ink-2); font-size: clamp(1rem, 1.4vw, 1.09rem); line-height: 2.1; margin: 0 0 1.4em; }
.prose > p:last-child { margin-bottom: 0; }
.prose > p .mark { background: linear-gradient(transparent 62%, rgba(224,149,74,.3) 62%); }
.prose > p em { font-style: normal; color: var(--amber-deep); font-weight: 700; }

/* --- メタ梯子(L1→L6・登坂の可視化・箱でなく罫) --- */
.step-ladder { display: grid; gap: 0; margin-top: clamp(28px, 4vw, 48px); counter-reset: none; }
.step { display: grid; grid-template-columns: minmax(72px, auto) 1fr auto; gap: clamp(16px, 3vw, 40px);
  align-items: center; padding: clamp(20px, 3vw, 30px) 0; border-top: 1px solid var(--line);
  transition: background .4s var(--ease), padding-left .4s var(--ease); }
.step-ladder .step:last-child { border-bottom: 1px solid var(--line); }
.step:hover { background: linear-gradient(90deg, rgba(183,101,27,.05), transparent 66%); }
.step .s-lv { font-family: var(--latin); font-weight: 800; font-size: clamp(1.5rem, 3.4vw, 2.5rem); line-height: 1;
  color: var(--line); letter-spacing: .02em; }
.step .s-title { font-family: var(--mincho); font-weight: 700; font-size: clamp(1.05rem, 2vw, 1.4rem); color: var(--ink); margin: 0 0 4px; }
.step .s-desc { font-size: .86rem; color: var(--ink-soft); line-height: 1.8; margin: 0; }
.step .s-who { font-family: var(--latin); font-size: .7rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-soft); white-space: nowrap; text-align: right; }
/* 現在地(あなたが登る段)を琥珀で強調 */
.step.is-you { background: linear-gradient(90deg, rgba(183,101,27,.08), transparent 72%); box-shadow: inset 3px 0 0 var(--amber); }
.step.is-you .s-lv { color: var(--amber-deep); }
.step.is-you .s-who { color: var(--amber-deep); }
/* 登坂インデント(モバイルで解除) */
.step-ladder .step:nth-child(2) { padding-left: 2%; }
.step-ladder .step:nth-child(3) { padding-left: 4%; }
.step-ladder .step:nth-child(4) { padding-left: 6%; }
.step-ladder .step:nth-child(5) { padding-left: 8%; }
.step-ladder .step:nth-child(6) { padding-left: 10%; }

/* --- FAQ(編集的アコーディオン・箱にしない・罫と余白) --- */
.faq { max-width: 46em; margin-top: clamp(24px, 4vw, 44px); }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { position: relative; list-style: none; cursor: pointer; padding: clamp(18px,2.4vw,26px) 44px clamp(18px,2.4vw,26px) 0;
  font-family: var(--mincho); font-weight: 700; font-size: clamp(1rem, 1.7vw, 1.2rem); color: var(--ink); line-height: 1.6;
  transition: color .25s var(--ease); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--amber-deep); }
.faq summary::after { content: ""; position: absolute; right: 6px; top: 50%; width: 13px; height: 13px; margin-top: -6px;
  background:
    linear-gradient(var(--amber-deep), var(--amber-deep)) center/13px 1.6px no-repeat,
    linear-gradient(var(--amber-deep), var(--amber-deep)) center/1.6px 13px no-repeat;
  transition: transform .3s var(--ease-out); }
.faq details[open] summary::after { transform: rotate(135deg); }
.faq .faq-a { padding: 0 44px clamp(20px,2.6vw,28px) 0; color: var(--ink-2); font-size: .96rem; line-height: 2; margin: 0; max-width: 42em; }

/* --- 中央寄せの最終CTA(帯でなく余白で締める) --- */
.cta-center { text-align: center; }
.cta-center .eyebrow { justify-content: center; }
.cta-center .section-head { margin-inline: auto; max-width: 20em; }
.cta-center .prose { margin-inline: auto; }
.cta-center .hero-actions, .cta-center .actions { justify-content: center; }
.actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-top: clamp(24px,4vw,34px); }
.whisper { margin-top: clamp(26px,4vw,34px); font-size: .82rem; color: var(--ink-soft); letter-spacing: .02em; }
.statement .whisper { color: rgba(243,239,230,.6); }

/* --- 汎用: セクション導入の見出しブロック --- */
.lead-block { max-width: 640px; margin-bottom: clamp(28px, 5vw, 56px); }
.lead-block.center { margin-inline: auto; text-align: center; }

/* --- offerの近日(準備中)行: rungの中で価格の代わり --- */
.rung.is-soon { opacity: .68; }
.rung .r-price.soon { font-family: var(--mincho2); font-size: 1.02rem; font-weight: 700; color: var(--ink-soft); }

/* =========================================================================
   記事の読み面(article-prose・雑誌的な本文)
   ========================================================================= */
.article-head { padding-top: clamp(40px, 6vw, 80px); padding-bottom: clamp(20px, 3vw, 36px); }
.article-head .a-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; margin: 0 0 20px; }
.article-head .a-date { font-family: var(--latin); font-size: .76rem; letter-spacing: .12em; color: var(--ink-soft); }
.article-head .a-tag { font-size: .74rem; font-weight: 700; letter-spacing: .08em; color: var(--amber-deep);
  border: 1px solid var(--amber); border-radius: 999px; padding: 2px 12px; }
.article-head h1 { font-family: var(--mincho); font-weight: 900; font-size: clamp(1.8rem, 4.4vw, 3rem); line-height: 1.4;
  letter-spacing: .01em; margin: 0; max-width: 22em; word-break: keep-all; line-break: strict; }
.article-hero-media { aspect-ratio: 16/8; border-radius: 3px; overflow: hidden; background: var(--paper-2); box-shadow: var(--shadow-soft);
  margin-block: clamp(28px,4vw,44px); }
.article-hero-media img { width: 100%; height: 100%; object-fit: cover; }
.article-prose { max-width: 40em; margin-inline: auto; }
.article-prose > * { margin-block: 0; }
.article-prose > * + * { margin-top: 1.5em; }
.article-prose h2 { font-family: var(--mincho); font-weight: 700; font-size: clamp(1.35rem, 2.6vw, 1.9rem); line-height: 1.5;
  margin-top: 2em; padding-top: .1em; letter-spacing: .01em; }
.article-prose h3 { font-family: var(--sans); font-weight: 700; font-size: clamp(1.08rem, 1.9vw, 1.32rem); line-height: 1.6; margin-top: 1.8em; }
.article-prose p { color: var(--ink-2); font-size: clamp(1rem,1.4vw,1.07rem); line-height: 2.1; }
.article-prose a { color: var(--amber-deep); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.article-prose ul, .article-prose ol { color: var(--ink-2); line-height: 2; padding-left: 1.4em; }
.article-prose li { margin-bottom: .5em; }
.article-prose blockquote { border-left: 3px solid var(--amber); padding: 4px 0 4px 22px; margin-left: 0; color: var(--ink);
  font-family: var(--mincho2); font-size: 1.1rem; line-height: 1.9; }
.article-prose strong { font-weight: 700; color: var(--ink); }
.article-prose code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .88em;
  background: var(--paper-2); padding: 2px 6px; border-radius: 3px; }
.article-prose hr { border: none; border-top: 1px solid var(--line); margin-block: 2.4em; }

/* 記事のPR表記(景表法・冒頭の淡い注記) */
.article-prose + .pr-notice, .pr-notice.in-article { margin-top: 2em; }

/* 記事フッタ(関連記事/出典・編集的な罫) */
.article-foot { max-width: 40em; margin-inline: auto; }
.related-articles { border-top: 1px solid var(--line); padding-top: clamp(26px,4vw,38px); margin-top: clamp(40px,6vw,72px); }
.related-articles h3 { font-family: var(--mincho); font-weight: 700; font-size: 1.2rem; margin: 0 0 14px; }
.related-articles ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 0; }
.related-articles li a { display: block; padding: 14px 0; border-top: 1px solid var(--line-soft); color: var(--ink-2);
  font-family: var(--mincho2); font-size: .98rem; line-height: 1.6; transition: color .25s var(--ease), padding-left .25s var(--ease); }
.related-articles li:first-child a { border-top: none; }
.related-articles li a:hover { color: var(--amber-deep); padding-left: 8px; }
.sources { margin-top: clamp(30px,4vw,44px); border-top: 1px solid var(--line); padding-top: 22px; font-size: .8rem;
  color: var(--ink-soft); line-height: 1.9; }
.sources ul { margin: 8px 0 0; padding-left: 1.3em; }
.sources li { margin-bottom: 6px; }
.sources a { color: var(--amber-deep); text-decoration: underline; text-underline-offset: 2px; word-break: break-all; }

/* =========================================================================
   診断UI(shindan・箱を減らし罫と余白の設問に)
   ========================================================================= */
.quiz { max-width: 720px; margin-inline: auto; }
.quiz-progress { height: 2px; background: var(--line); margin-bottom: clamp(28px,5vw,48px); position: relative; }
.quiz-progress span { position: absolute; inset: 0 auto 0 0; width: 0; background: var(--amber); transition: width .5s var(--ease-out); }
.quiz-q { font-family: var(--mincho); font-weight: 700; font-size: clamp(1.4rem, 3vw, 2rem); line-height: 1.5; margin: 0 0 clamp(24px,4vw,40px); }
.quiz-q .qn { font-family: var(--latin); font-size: .8rem; letter-spacing: .16em; color: var(--amber-deep); display: block; margin-bottom: 14px; }
.quiz-opts { display: grid; gap: 12px; }
.quiz-opt { display: flex; align-items: center; gap: 16px; text-align: left; width: 100%; cursor: pointer;
  background: transparent; border: 1px solid var(--line); border-radius: 3px; padding: 18px 22px; font-family: var(--body);
  font-size: 1rem; color: var(--ink); transition: border-color .25s var(--ease), background .25s var(--ease), transform .2s var(--ease-out); }
.quiz-opt:hover { border-color: var(--amber); background: var(--paper-lift); transform: translateX(4px); }
.quiz-opt .k { font-family: var(--latin); font-weight: 800; color: var(--amber-deep); font-size: 1rem; flex: none; }
.quiz-opt.sel { border-color: var(--amber-deep); box-shadow: inset 0 0 0 1px var(--amber-deep); }
.quiz-result { text-align: center; }
.quiz-result .r-layer { font-family: var(--latin); font-weight: 800; font-size: clamp(3rem,10vw,6rem); color: var(--amber-deep); line-height: 1; }

/* =========================================================================
   レスポンシブ
   ========================================================================= */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 460px; }
  .feature, .feature.flip .feature-media { grid-template-columns: 1fr; order: 0; }
  .band-inner { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .rung { grid-template-columns: auto 1fr; grid-template-areas: "num side" "body body"; row-gap: 14px; }
  .rung .r-num { grid-area: num; } .rung .r-side { grid-area: side; } .rung .r-body { grid-area: body; }
  .step { grid-template-columns: auto 1fr; grid-template-areas: "lv who" "body body"; row-gap: 10px; }
  .step .s-lv { grid-area: lv; } .step .s-who { grid-area: who; } .step .s-body { grid-area: body; }
  .step-ladder .step:nth-child(n) { padding-left: 0; }
}
@media (max-width: 620px) {
  .nav { display: none; }
  .nav-toggle { display: inline-flex; }
  .hero-strip { flex-wrap: wrap; }
  .hero-strip .cell { flex: 1 1 46%; border-right: none; border-bottom: 1px solid var(--line-soft); padding-bottom: 16px; }
  .art-row { grid-template-columns: 88px 1fr; }
  .art-row .go { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
}