/* MarioRossi Corporate Site — Phase 6.2 Design Comp v1
   Designer: 零（CDO）/ 2026-04-28
   Base: Ash wireframes/styles.css → 本番カンプへ昇格
   Reference: proposal-summary-style-ref.png（提案サマリー型）
                博報堂コンサルティング / Bain JP / ベイジ
   CEO 制約: 白黒&フラットデザイン（2026-03-28）+ 赤アクセント
   厳守: NG用語ゼロ / 日本語italic禁止 / 写真ほぼ無し
*/

/* ============================================================
   01. DESIGN TOKENS — 一級ホテル水準
   ============================================================ */
:root{
  /* Color — 白黒&フラット + 1点赤 */
  --c-ink:        #0A0A0A;       /* ブラック（純黒よりわずかに柔らかく）*/
  --c-ink-soft:   #1F1F1F;       /* 黒パネル本体 */
  --c-paper:      #FFFFFF;
  --c-paper-warm: #FAFAF7;       /* 紙の温かみ（広い面で使用）*/
  --c-paper-mute: #F4F3EF;       /* 区切り背景 */
  --c-line:       #0A0A0A;
  --c-line-soft:  #DDDCD7;       /* 細罫線（ベイジ参照）*/
  --c-line-faint: #ECEBE6;       /* 仕切りの薄い線 */
  --c-mute:       #6B6B6B;
  --c-mute-warm:  #807C73;
  --c-accent:     #C8102E;       /* Bain赤 */
  --c-accent-deep:#A00C24;
  --c-accent-tint:#FBEDEF;       /* 赤の極薄背景 */

  /* Typography — 明朝×英字メタ */
  --f-serif:"Noto Serif JP","Hiragino Mincho ProN","Yu Mincho",serif;
  --f-sans: "Noto Sans JP","Hiragino Sans","Yu Gothic",sans-serif;
  --f-mono: "JetBrains Mono","IBM Plex Mono","SF Mono",monospace;
  --f-en:   "Inter","Helvetica Neue","Arial",sans-serif;

  /* Spacing — 余白広め（博報堂水準）*/
  --space-section: 144px;        /* 大セクション間 */
  --space-block:   80px;          /* ブロック内主要間 */
  --space-head:    56px;          /* 見出し→本文 */
  --max-w:         1280px;
  --max-w-narrow:  960px;
  --max-w-text:    760px;

  /* Motion */
  --ease: cubic-bezier(.2,.7,.2,1);
  --ease-emph: cubic-bezier(.16,1,.3,1);
  --dur-1: 220ms;
  --dur-2: 480ms;
  --dur-3: 800ms;
}

/* ============================================================
   02. BASE
   ============================================================ */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;background:var(--c-paper)}
body{
  font-family:var(--f-sans);
  color:var(--c-ink);
  background:var(--c-paper);
  font-size:16px;line-height:1.85;
  font-feature-settings:"palt" 1;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-wrap:break-word;
  word-break:break-word;
}
html,body{overflow-x:hidden}
img,svg{max-width:100%}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--dur-1) var(--ease)}
::selection{background:var(--c-ink);color:var(--c-paper)}

a:focus-visible,button:focus-visible,
input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--c-accent);outline-offset:3px;
}

/* 微細グリッドノイズ（紙質感）— 全体ベース。控えめに。 */
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:1;
  background-image:
    repeating-linear-gradient(0deg, rgba(10,10,10,.012) 0 1px, transparent 1px 3px);
  mix-blend-mode:multiply;opacity:.6;
}

/* ============================================================
   03. HEADER — 細い水平ライン+メタ英字+CTA1個
   ============================================================ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(10px);
  -webkit-backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--c-line);
}
.site-header__inner{
  max-width:var(--max-w);margin:0 auto;
  padding:20px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:48px;
}
.brand{
  font-family:var(--f-serif);
  font-size:24px;letter-spacing:.05em;font-weight:600;line-height:1;
  position:relative;display:inline-block;
}
.brand small{
  display:block;
  font-family:var(--f-mono);
  font-size:9px;letter-spacing:.32em;
  color:var(--c-mute);margin-top:6px;font-weight:400;
}
.nav{display:flex;align-items:center;gap:36px}
.nav a{
  font-size:14px;line-height:1.3;
  display:inline-block;text-align:center;
  position:relative;
  padding-bottom:4px;
}
.nav a:not(.cta)::after{
  content:"";position:absolute;left:50%;bottom:-2px;
  width:0;height:1px;background:var(--c-accent);
  transition:width var(--dur-1) var(--ease),left var(--dur-1) var(--ease);
}
.nav a:not(.cta):hover::after{width:100%;left:0}
.nav a small{
  display:block;
  font-family:var(--f-mono);
  font-size:9px;letter-spacing:.28em;
  color:var(--c-mute);margin-top:3px;font-weight:400;
}
.nav .cta{
  border:1px solid var(--c-accent);color:var(--c-accent);
  padding:13px 24px;font-weight:600;
  transition:background var(--dur-1) var(--ease),color var(--dur-1) var(--ease);
}
.nav .cta:hover{background:var(--c-accent);color:#fff}
.nav .cta small{color:rgba(200,16,46,.7)}

@media (max-width:980px){
  .nav a:not(.cta){display:none}
  .site-header__inner{padding:16px 24px}
}

/* ============================================================
   04. BLOCK LAYOUT — 余白広め+左右の細い指標
   ============================================================ */
.block{
  max-width:var(--max-w);margin:0 auto;
  padding:var(--space-section) 40px;
  position:relative;
}
.block + .block{padding-top:0}
.block--alt{background:var(--c-paper-warm);padding-top:var(--space-section);padding-bottom:var(--space-section)}
.block--alt + .block{padding-top:var(--space-section)}

/* 各ブロック頭の指標（番号+メタ+タイトル+細線下線）*/
.block-head{
  display:flex;align-items:flex-start;gap:32px;
  margin-bottom:var(--space-head);
  position:relative;
}
.block-num{
  font-family:var(--f-mono);font-size:13px;letter-spacing:.18em;
  color:var(--c-accent);font-weight:600;
  padding-top:10px;min-width:32px;
}
.block-meta{
  font-family:var(--f-mono);font-size:11px;letter-spacing:.32em;
  color:var(--c-mute);text-transform:uppercase;
  margin-bottom:14px;
  display:inline-flex;align-items:center;gap:14px;
}
.block-meta::before{
  content:"";display:inline-block;
  width:24px;height:1px;background:var(--c-accent);
}
.block-title{
  font-family:var(--f-serif);
  font-size:clamp(30px,4.4vw,50px);
  font-weight:600;line-height:1.42;
  letter-spacing:.015em;
  color:var(--c-ink);
}
.underline{height:1px;background:var(--c-ink);width:100%;margin:8px 0 32px}
.underline--accent{
  background:var(--c-accent);width:48px;height:2px;margin-top:24px;
}
.lead{
  font-size:17px;line-height:2;
  color:var(--c-ink);max-width:var(--max-w-text);
  letter-spacing:.012em;
}

/* ============================================================
   05. HERO — 黒反転パネル（design-reference 主役）
   ============================================================ */
.hero{
  background:var(--c-ink);color:#fff;
  padding:160px 40px 140px;
  position:relative;overflow:hidden;
}
.hero--small{padding:112px 40px 88px}

/* hero 背景の微細格子（プロジェクト作業現場の紙の上の罫線感）*/
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size:80px 80px;
  mask-image:linear-gradient(to bottom, transparent 0%, #000 30%, #000 70%, transparent 100%);
}
/* hero 右上のセクションラベル（提案書の Executive Summary 風）*/
.hero::after{
  content:"";position:absolute;top:32px;right:40px;
  width:72px;height:1px;background:var(--c-accent);
}

.hero__inner{max-width:var(--max-w);margin:0 auto;position:relative;z-index:2}
.hero__meta{
  font-family:var(--f-mono);font-size:11px;letter-spacing:.38em;
  color:rgba(255,255,255,.55);
  margin-bottom:64px;
  display:flex;gap:32px;align-items:center;
  text-transform:uppercase;
}
.hero__meta::before{
  content:"";display:inline-block;width:40px;height:1px;background:var(--c-accent);
}
.hero h1{
  font-family:var(--f-serif);
  font-size:clamp(38px,6.4vw,80px);
  font-weight:600;line-height:1.32;
  letter-spacing:.012em;
  margin-bottom:40px;
}
.hero h1 .accent{color:var(--c-accent)}
.hero__sub{
  font-family:var(--f-serif);
  font-size:clamp(19px,2.4vw,28px);
  font-weight:400;line-height:1.78;
  color:rgba(255,255,255,.82);
  margin-bottom:48px;
  border-left:2px solid var(--c-accent);padding-left:24px;
  max-width:760px;
}
.hero__statement{
  font-size:15px;line-height:2.05;
  color:rgba(255,255,255,.66);
  max-width:680px;margin-bottom:64px;
}
.hero__cta{
  display:inline-flex;align-items:center;gap:16px;
  border:1px solid #fff;padding:20px 36px;
  font-size:14px;letter-spacing:.06em;
  transition:background var(--dur-1) var(--ease),
             color var(--dur-1) var(--ease),
             border-color var(--dur-1) var(--ease),
             padding-right var(--dur-1) var(--ease);
}
.hero__cta::after{
  content:"→";font-family:var(--f-mono);
  transition:transform var(--dur-1) var(--ease);
}
.hero__cta:hover{background:var(--c-accent);border-color:var(--c-accent)}
.hero__cta:hover::after{transform:translateX(6px)}

/* ============================================================
   06. CTA BUTTONS
   ============================================================ */
.btn-primary{
  display:inline-flex;align-items:center;gap:16px;
  background:var(--c-accent);color:#fff;
  padding:24px 56px;
  font-size:15px;letter-spacing:.06em;font-weight:600;
  border:1px solid var(--c-accent);
  transition:background var(--dur-1) var(--ease),
             box-shadow var(--dur-1) var(--ease);
}
.btn-primary::after{
  content:"→";font-family:var(--f-mono);
  transition:transform var(--dur-1) var(--ease);
}
.btn-primary:hover{
  background:var(--c-accent-deep);
  box-shadow:0 12px 32px -8px rgba(200,16,46,.4);
}
.btn-primary:hover::after{transform:translateX(6px)}

.btn-secondary{
  display:inline-flex;align-items:center;gap:14px;
  border:1px solid var(--c-ink);padding:18px 32px;
  font-size:14px;letter-spacing:.06em;
  transition:background var(--dur-1) var(--ease),color var(--dur-1) var(--ease);
}
.btn-secondary::after{content:"→";font-family:var(--f-mono)}
.btn-secondary:hover{background:var(--c-ink);color:#fff}

.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--f-mono);font-size:12px;letter-spacing:.18em;
  color:var(--c-accent);
  border-bottom:1px solid var(--c-accent);
  padding:0 0 4px;
  transition:gap var(--dur-1) var(--ease),color var(--dur-1) var(--ease);
}
.link-arrow::after{content:"→"}
.link-arrow:hover{gap:14px;color:var(--c-accent-deep)}

/* ============================================================
   07. CLOSING — シンプル中央CTA
   ============================================================ */
.closing{
  background:var(--c-paper-warm);
  text-align:center;
  padding:200px 40px;
  position:relative;
}
.closing::before{
  content:"";position:absolute;left:50%;top:80px;
  transform:translateX(-50%);
  width:48px;height:2px;background:var(--c-accent);
}
.closing__title{
  font-family:var(--f-serif);
  font-size:clamp(36px,5.4vw,60px);
  font-weight:600;line-height:1.5;
  margin-bottom:32px;
}
.closing__sub{
  font-size:16px;color:var(--c-mute);
  margin-bottom:64px;line-height:2;
}

/* ============================================================
   08. FOOTER
   ============================================================ */
.site-footer{
  background:var(--c-ink);color:#fff;
  padding:120px 40px 40px;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(to right,transparent,rgba(255,255,255,.18),transparent);
}
.site-footer__inner{
  max-width:var(--max-w);margin:0 auto;
  display:grid;grid-template-columns:1.5fr 2fr 1.5fr;gap:80px;
}
.ft-brand{
  font-family:var(--f-serif);font-size:24px;font-weight:600;
  letter-spacing:.05em;margin-bottom:20px;
}
.ft-tag{
  font-size:13px;color:rgba(255,255,255,.65);
  line-height:1.95;
}
.ft-nav{display:flex;flex-wrap:wrap;gap:18px 32px}
.ft-nav a{
  font-size:13px;color:rgba(255,255,255,.85);
  position:relative;padding-bottom:2px;
}
.ft-nav a::after{
  content:"";position:absolute;left:0;bottom:0;
  width:0;height:1px;background:var(--c-accent);
  transition:width var(--dur-1) var(--ease);
}
.ft-nav a:hover::after{width:100%}
.ft-info{
  font-size:12px;color:rgba(255,255,255,.62);line-height:1.95;
}
.ft-info dt{
  font-family:var(--f-mono);font-size:10px;letter-spacing:.28em;
  color:rgba(255,255,255,.4);margin-top:12px;
}
.ft-copyright{
  border-top:1px solid rgba(255,255,255,.14);
  margin-top:80px;padding-top:28px;
  font-family:var(--f-mono);font-size:11px;
  color:rgba(255,255,255,.4);letter-spacing:.12em;
}

@media (max-width:900px){
  .site-footer__inner{grid-template-columns:1fr;gap:48px}
}

/* ============================================================
   09. PILLARS 3-up — 3つの素材
   ============================================================ */
.pillars{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:56px;margin-top:40px;
}
.pillar{
  border-top:1px solid var(--c-line);padding-top:36px;
  position:relative;
  transition:transform var(--dur-2) var(--ease-emph);
}
.pillar::before{
  content:"";position:absolute;top:-1px;left:0;
  width:0;height:2px;background:var(--c-accent);
  transition:width var(--dur-2) var(--ease-emph);
}
.pillar:hover{transform:translateY(-4px)}
.pillar:hover::before{width:48px}
.pillar__num{
  font-family:var(--f-serif);font-size:56px;
  color:var(--c-accent);font-weight:600;line-height:1;
  margin-bottom:20px;letter-spacing:-.01em;
}
.pillar__meta{
  font-family:var(--f-mono);font-size:11px;letter-spacing:.32em;
  color:var(--c-mute);margin-bottom:14px;text-transform:uppercase;
}
.pillar__title{
  font-family:var(--f-serif);font-size:24px;
  font-weight:600;line-height:1.5;margin-bottom:20px;
}
.pillar__body{
  font-size:15px;line-height:1.95;color:var(--c-ink);
}
.pillar__link{
  margin-top:28px;display:inline-flex;align-items:center;gap:8px;
  font-family:var(--f-mono);font-size:12px;letter-spacing:.18em;
  color:var(--c-accent);
  border-bottom:1px solid var(--c-accent);padding:0 0 4px;
  transition:gap var(--dur-1) var(--ease);
}
.pillar__link:hover{gap:14px}

@media (max-width:900px){
  .pillars{grid-template-columns:1fr;gap:56px}
}

/* ============================================================
   10. VOICE QUOTE — CEO声の引用
   ============================================================ */
.voice__quote{
  font-family:var(--f-serif);
  font-size:clamp(28px,4.6vw,54px);
  line-height:1.55;font-weight:600;
  max-width:920px;margin-bottom:40px;
  border-left:3px solid var(--c-accent);padding-left:36px;
  letter-spacing:.012em;
}
.voice__quote::before{content:"『";color:var(--c-accent);margin-right:-.1em}
.voice__quote::after{content:"』";color:var(--c-accent)}
.voice__sub{
  font-size:16px;color:var(--c-mute);
  max-width:780px;line-height:2;
}

/* ============================================================
   11. 2x2 QUADRANT — Services Tier 3 / 提案書の典型図
   ============================================================ */
.quad-2x2{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  border:1px solid var(--c-line);
  margin-top:40px;position:relative;
}
.quad-2x2__cell{
  padding:56px;
  border-right:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  min-height:240px;
  position:relative;
  transition:background var(--dur-2) var(--ease);
}
.quad-2x2__cell:nth-child(2n){border-right:none}
.quad-2x2__cell:nth-last-child(-n+2){border-bottom:none}
.quad-2x2__cell--dark{
  background:var(--c-ink);color:#fff;
}
.quad-2x2__cell .cell-num{
  font-family:var(--f-mono);font-size:11px;letter-spacing:.28em;
  color:var(--c-accent);margin-bottom:14px;display:block;
  text-transform:uppercase;
}
.quad-2x2__cell h3{
  font-family:var(--f-serif);font-size:24px;line-height:1.5;
  margin-bottom:14px;font-weight:600;
}
.quad-2x2__cell p{font-size:14.5px;line-height:1.95}
.quad-2x2__cell--dark p{color:rgba(255,255,255,.78)}

@media (max-width:780px){
  .quad-2x2{grid-template-columns:1fr}
  .quad-2x2__cell{border-right:none;border-bottom:1px solid var(--c-line)!important}
  .quad-2x2__cell:last-child{border-bottom:none}
}

/* ============================================================
   12. STAIR — 3層階段（Services Tier 1/2/3 の積み上げ）
   ============================================================ */
.stair{
  display:flex;flex-direction:column;gap:0;
  margin-top:40px;
  border-left:2px solid var(--c-accent);
}
.stair__step{
  padding:36px 36px 36px 56px;
  border-bottom:1px solid var(--c-line-soft);
  position:relative;
  transition:transform var(--dur-2) var(--ease-emph);
}
.stair__step:last-child{border-bottom:none}
.stair__step:nth-child(1){background:var(--c-paper-mute);margin-left:0}
.stair__step:nth-child(2){background:var(--c-paper-warm);margin-left:40px}
.stair__step:nth-child(3){
  background:var(--c-paper);margin-left:80px;
  border:1px solid var(--c-line);
  border-left:2px solid var(--c-accent);
  box-shadow:0 8px 32px -16px rgba(0,0,0,.12);
}
.stair__step:hover{transform:translateX(4px)}
.stair__num{
  font-family:var(--f-mono);font-size:11px;letter-spacing:.32em;
  color:var(--c-accent);margin-bottom:10px;font-weight:600;
}
.stair__title{
  font-family:var(--f-serif);font-size:24px;font-weight:600;
  margin-bottom:10px;line-height:1.5;
}
.stair__body{font-size:15px;line-height:1.95;color:var(--c-mute)}

@media (max-width:780px){
  .stair__step:nth-child(2){margin-left:20px}
  .stair__step:nth-child(3){margin-left:36px}
}

/* ============================================================
   13. TIMELINE — About §4 翻訳系譜
   ============================================================ */
.timeline{
  margin-top:40px;
  border-left:2px solid var(--c-accent);
  padding-left:40px;
  display:flex;flex-direction:column;gap:40px;
}
.timeline__item{position:relative}
.timeline__item::before{
  content:"";position:absolute;left:-48px;top:8px;
  width:14px;height:14px;background:var(--c-accent);
  border-radius:50%;
  box-shadow:0 0 0 4px var(--c-paper),0 0 0 5px var(--c-accent);
}
.timeline__year{
  font-family:var(--f-mono);font-size:12px;letter-spacing:.22em;
  color:var(--c-accent);font-weight:600;margin-bottom:8px;
}
.timeline__title{
  font-family:var(--f-serif);font-size:19px;font-weight:600;
  margin-bottom:8px;line-height:1.55;
}
.timeline__body{font-size:14.5px;line-height:1.95;color:var(--c-mute)}

/* ============================================================
   14. COMPARE — Services §7 効く・効かない
   ============================================================ */
.compare{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  margin-top:40px;border:1px solid var(--c-line);
}
.compare__col{padding:56px}
.compare__col:first-child{border-right:1px solid var(--c-line)}
.compare__head{
  display:flex;align-items:baseline;gap:14px;margin-bottom:32px;
  border-bottom:2px solid var(--c-accent);padding-bottom:14px;
}
.compare__col--neg .compare__head{border-bottom-color:var(--c-mute)}
.compare__head h3{font-family:var(--f-serif);font-size:22px;font-weight:600}
.compare__head .meta{
  font-family:var(--f-mono);font-size:11px;letter-spacing:.28em;
  color:var(--c-accent);text-transform:uppercase;
}
.compare__col--neg .compare__head .meta{color:var(--c-mute)}
.compare ul{list-style:none;padding:0}
.compare li{
  padding:14px 0;border-bottom:1px solid var(--c-line-faint);
  font-size:14.5px;line-height:1.75;
  display:flex;gap:14px;
}
.compare li::before{
  content:"●";color:var(--c-accent);font-size:8px;
  padding-top:8px;flex-shrink:0;
}
.compare__col--neg li::before{color:var(--c-mute)}

@media (max-width:780px){
  .compare{grid-template-columns:1fr}
  .compare__col:first-child{border-right:none;border-bottom:1px solid var(--c-line)}
}

/* ============================================================
   15. CARDS — Notes / 一覧
   ============================================================ */
.cards-3{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:48px;margin-top:32px;
}
.card{
  border-top:1px solid var(--c-line);padding-top:28px;
  transition:transform var(--dur-2) var(--ease-emph);
  position:relative;
}
.card::before{
  content:"";position:absolute;top:-1px;left:0;
  width:0;height:2px;background:var(--c-accent);
  transition:width var(--dur-2) var(--ease-emph);
}
.card:hover{transform:translateY(-6px)}
.card:hover::before{width:48px}
.card__meta{
  font-family:var(--f-mono);font-size:11px;letter-spacing:.28em;
  color:var(--c-accent);margin-bottom:14px;text-transform:uppercase;
}
.card__title{
  font-family:var(--f-serif);font-size:21px;line-height:1.55;
  font-weight:600;margin-bottom:14px;
}
.card__lead{font-size:14px;color:var(--c-mute);line-height:1.85}
.card__time{
  font-family:var(--f-mono);font-size:11px;color:var(--c-mute);
  margin-top:20px;letter-spacing:.12em;
}

@media (max-width:780px){
  .cards-3{grid-template-columns:1fr;gap:48px}
}

.cards-2{
  display:grid;grid-template-columns:repeat(2,1fr);
  gap:48px;margin-top:32px;
}
@media (max-width:780px){.cards-2{grid-template-columns:1fr;gap:36px}}

/* ============================================================
   16. INSIGHT — 大きい数字（提案書の Big Number 型）
   ============================================================ */
.insight{background:var(--c-paper-warm)}
.insight__inner{
  display:grid;grid-template-columns:1fr 1.4fr;
  gap:80px;align-items:center;
}
.insight__num{
  font-family:var(--f-serif);
  font-size:clamp(96px,14vw,200px);
  font-weight:600;line-height:1;
  color:var(--c-ink);letter-spacing:-.025em;
  position:relative;
}
.insight__num small{
  font-size:.42em;font-weight:400;
  color:var(--c-accent);margin-left:12px;
}
.insight__caption{
  font-family:var(--f-serif);font-size:24px;line-height:1.7;
  font-weight:600;margin-bottom:20px;
}
.insight__source{
  font-family:var(--f-mono);font-size:11px;color:var(--c-mute);
  letter-spacing:.12em;border-top:1px solid var(--c-mute);
  padding-top:14px;margin-top:28px;
}

@media (max-width:900px){
  .insight__inner{grid-template-columns:1fr;gap:32px}
}

/* ============================================================
   17. QUOTE BOX
   ============================================================ */
.quote-box{
  background:var(--c-paper-warm);
  padding:56px;
  border-left:3px solid var(--c-accent);
  max-width:920px;margin:40px 0;
  position:relative;
}
.quote-box__text{
  font-family:var(--f-serif);
  font-size:clamp(20px,2.4vw,30px);line-height:1.75;
  font-weight:600;margin-bottom:20px;
}
.quote-box__attr{
  font-family:var(--f-mono);font-size:12px;letter-spacing:.18em;
  color:var(--c-mute);text-transform:uppercase;
}
.quote-box--dark{
  background:var(--c-ink);color:#fff;border-left-color:var(--c-accent);
}
.quote-box--dark .quote-box__attr{color:rgba(255,255,255,.55)}

/* ============================================================
   18. STEPS LIST — 番号付きリスト（提案書の WORKSTREAMS 型）
   ============================================================ */
.steps{list-style:none;counter-reset:step;margin-top:40px}
.steps li{
  counter-increment:step;
  padding:28px 0 28px 80px;
  border-bottom:1px solid var(--c-line);
  position:relative;
  font-size:15px;line-height:1.95;
}
.steps li::before{
  content:counter(step,decimal-leading-zero);
  font-family:var(--f-mono);font-size:13px;
  color:var(--c-accent);font-weight:600;letter-spacing:.12em;
  position:absolute;left:0;top:32px;
}
.steps li::after{
  content:"";position:absolute;left:36px;top:36px;
  width:24px;height:1px;background:var(--c-accent);
}
.steps li strong{
  font-family:var(--f-serif);font-size:19px;
  display:block;margin-bottom:8px;font-weight:600;
}
.steps li:last-child{border-bottom:none}

/* ============================================================
   19. PLAN TABLE — 価格表
   ============================================================ */
.plan-table{
  width:100%;border-collapse:collapse;
  margin-top:40px;font-size:14.5px;
  border-top:1px solid var(--c-line);
}
.plan-table th,.plan-table td{
  padding:20px 24px;text-align:left;
  border-bottom:1px solid var(--c-line-soft);
  vertical-align:top;
}
.plan-table th{
  background:var(--c-paper-warm);
  font-family:var(--f-mono);font-size:11px;letter-spacing:.22em;
  color:var(--c-mute);text-transform:uppercase;font-weight:600;
}
.plan-table td{line-height:1.85}
.plan-table .plan-name{
  font-family:var(--f-serif);font-weight:600;
  color:var(--c-ink);font-size:17px;
}

/* ============================================================
   20. PLACEHOLDER（画像差替え予定）
   ============================================================ */
.placeholder{
  background:repeating-linear-gradient(
    45deg,
    var(--c-paper-mute),
    var(--c-paper-mute) 12px,
    var(--c-paper-warm) 12px,
    var(--c-paper-warm) 24px
  );
  color:var(--c-mute);
  font-family:var(--f-mono);font-size:11px;letter-spacing:.18em;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line-soft);
  min-height:240px;text-align:center;
}

/* ============================================================
   21. FORM — Contact
   ============================================================ */
.form{
  margin-top:40px;
  display:grid;grid-template-columns:1fr 1fr;gap:32px;
}
.form__row{display:flex;flex-direction:column;gap:10px}
.form__row--full{grid-column:1/-1}
.form label{
  font-family:var(--f-mono);font-size:11px;letter-spacing:.22em;
  color:var(--c-mute);text-transform:uppercase;font-weight:600;
}
.form label .req{color:var(--c-accent);margin-left:6px}
.form input,.form textarea,.form select{
  font-family:var(--f-sans);font-size:15px;
  padding:16px 18px;
  border:1px solid var(--c-line);
  background:var(--c-paper);
  width:100%;line-height:1.6;
  transition:border-color var(--dur-1) var(--ease),
             box-shadow var(--dur-1) var(--ease);
}
.form input:focus,.form textarea:focus,.form select:focus{
  border-color:var(--c-accent);
  box-shadow:0 0 0 3px var(--c-accent-tint);
  outline:none;
}
.form textarea{min-height:160px;resize:vertical}
.form__submit{
  grid-column:1/-1;
  display:flex;justify-content:flex-end;margin-top:24px;
}
.form__note{
  grid-column:1/-1;
  font-size:13px;color:var(--c-mute);line-height:1.95;margin-top:12px;
  padding:16px 20px;background:var(--c-paper-warm);
  border-left:2px solid var(--c-accent);
}

@media (max-width:780px){.form{grid-template-columns:1fr}}

/* ============================================================
   22. GLOSSARY — Services用語集
   ============================================================ */
.glossary{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  margin-top:40px;border:1px solid var(--c-line);
}
.glossary__item{
  padding:36px;
  border-right:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
}
.glossary__item:nth-child(2n){border-right:none}
.glossary__item:nth-last-child(-n+2){border-bottom:none}
.glossary__meta{
  font-family:var(--f-mono);font-size:11px;letter-spacing:.28em;
  color:var(--c-accent);margin-bottom:10px;text-transform:uppercase;
}
.glossary__term{
  font-family:var(--f-serif);font-size:21px;font-weight:600;
  margin-bottom:10px;
}
.glossary__def{font-size:14.5px;line-height:1.95;color:var(--c-mute)}

@media (max-width:780px){
  .glossary{grid-template-columns:1fr}
  .glossary__item{border-right:none;border-bottom:1px solid var(--c-line)!important}
  .glossary__item:last-child{border-bottom:none}
}

/* ============================================================
   23. ROLES 3-up — About §5 役割
   ============================================================ */
.roles{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:56px;margin-top:40px;
}
.role{
  border-top:2px solid var(--c-accent);
  padding-top:28px;
  transition:transform var(--dur-2) var(--ease-emph);
}
.role:hover{transform:translateY(-4px)}
.role__num{
  font-family:var(--f-mono);font-size:13px;letter-spacing:.22em;
  color:var(--c-accent);font-weight:600;margin-bottom:10px;
}
.role__meta{
  font-family:var(--f-mono);font-size:10px;letter-spacing:.32em;
  color:var(--c-mute);margin-bottom:14px;text-transform:uppercase;
}
.role__title{
  font-family:var(--f-serif);font-size:24px;font-weight:600;
  margin-bottom:14px;line-height:1.5;
}
.role__body{font-size:14.5px;line-height:1.95;color:var(--c-ink)}

@media (max-width:780px){.roles{grid-template-columns:1fr;gap:48px}}

/* ============================================================
   24. TIER CARD — Services Tier 1/2/3 詳細
   ============================================================ */
.tier-card{
  border-top:1px solid var(--c-line);
  padding:56px 0;
  display:grid;grid-template-columns:1fr 2fr;gap:56px;
  position:relative;
}
.tier-card:last-child{border-bottom:1px solid var(--c-line)}
.tier-card__num{
  font-family:var(--f-serif);font-size:56px;
  color:var(--c-accent);font-weight:600;line-height:1;
  letter-spacing:-.01em;
}
.tier-card__meta{
  font-family:var(--f-mono);font-size:11px;letter-spacing:.32em;
  color:var(--c-mute);margin-top:14px;text-transform:uppercase;
}
.tier-card__title{
  font-family:var(--f-serif);font-size:26px;font-weight:600;
  margin-bottom:20px;line-height:1.5;
}
.tier-card__body{font-size:15px;line-height:1.95;margin-bottom:20px}
.tier-card__list{
  list-style:none;display:flex;flex-wrap:wrap;
  gap:10px;margin-top:20px;
}
.tier-card__list li{
  font-family:var(--f-mono);font-size:11px;letter-spacing:.12em;
  border:1px solid var(--c-line);padding:8px 16px;
  color:var(--c-mute);
  transition:background var(--dur-1) var(--ease),color var(--dur-1) var(--ease);
}
.tier-card__list li:hover{background:var(--c-ink);color:#fff;border-color:var(--c-ink)}

@media (max-width:780px){.tier-card{grid-template-columns:1fr;gap:24px}}

/* ============================================================
   25. FEATURED — Insights 注目記事3点（1点黒反転）
   ============================================================ */
.featured{
  display:grid;grid-template-columns:1fr 1fr 1fr;
  gap:32px;margin-top:40px;
}
.featured__card{
  border:1px solid var(--c-line);
  padding:36px;
  display:flex;flex-direction:column;gap:18px;
  background:var(--c-paper);
  transition:transform var(--dur-2) var(--ease-emph),
             box-shadow var(--dur-2) var(--ease-emph);
}
.featured__card:first-child{
  background:var(--c-ink);color:#fff;border-color:var(--c-ink);
}
.featured__card:hover{
  transform:translateY(-6px);
  box-shadow:0 16px 40px -16px rgba(0,0,0,.18);
}
.featured__meta{
  font-family:var(--f-mono);font-size:11px;letter-spacing:.28em;
  color:var(--c-accent);text-transform:uppercase;
}
.featured__card:first-child .featured__meta{color:var(--c-accent)}
.featured__title{
  font-family:var(--f-serif);font-size:23px;line-height:1.55;
  font-weight:600;flex-grow:1;
}
.featured__lead{font-size:14px;line-height:1.85;color:var(--c-mute)}
.featured__card:first-child .featured__lead{color:rgba(255,255,255,.72)}
.featured__time{
  font-family:var(--f-mono);font-size:11px;letter-spacing:.12em;
  color:var(--c-mute);margin-top:auto;
}
.featured__card:first-child .featured__time{color:rgba(255,255,255,.55)}

@media (max-width:980px){.featured{grid-template-columns:1fr}}

/* ============================================================
   26. ARTICLE GRID — Insights 一覧
   ============================================================ */
.article-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:40px;margin-top:40px;
}
.article-grid__card{
  padding:28px 0;border-top:1px solid var(--c-line);
  transition:transform var(--dur-2) var(--ease-emph);
  position:relative;
}
.article-grid__card::before{
  content:"";position:absolute;top:-1px;left:0;
  width:0;height:2px;background:var(--c-accent);
  transition:width var(--dur-2) var(--ease-emph);
}
.article-grid__card:hover{transform:translateY(-4px)}
.article-grid__card:hover::before{width:36px}
.article-grid__card.is-coming{opacity:.4}
.article-grid__cat{
  font-family:var(--f-mono);font-size:10px;letter-spacing:.28em;
  color:var(--c-accent);margin-bottom:10px;text-transform:uppercase;
}
.article-grid__title{
  font-family:var(--f-serif);font-size:18px;line-height:1.6;
  font-weight:600;margin-bottom:10px;
}
.article-grid__lead{font-size:13px;color:var(--c-mute);line-height:1.75}

@media (max-width:980px){.article-grid{grid-template-columns:1fr}}

/* ============================================================
   27. SCROLL ANIMATIONS — フェードイン（控えめ）
   ============================================================ */
@media (prefers-reduced-motion: no-preference){
  .block, .hero, .pillars > *, .cards-3 > *, .featured > *, .roles > *,
  .stair__step, .tier-card, .compare, .article-grid > *{
    animation:fadeUp .8s var(--ease-emph) both;
  }
  .block{animation-delay:.05s}
  .pillars > *:nth-child(1){animation-delay:.05s}
  .pillars > *:nth-child(2){animation-delay:.15s}
  .pillars > *:nth-child(3){animation-delay:.25s}
  .cards-3 > *:nth-child(1){animation-delay:.05s}
  .cards-3 > *:nth-child(2){animation-delay:.15s}
  .cards-3 > *:nth-child(3){animation-delay:.25s}
}
@keyframes fadeUp{
  from{opacity:0;transform:translateY(16px)}
  to{opacity:1;transform:translateY(0)}
}

/* ============================================================
   28. RESPONSIVE — 4ブレークポイント
   ============================================================ */
/* Mobile 〜640px */
@media (max-width:640px){
  body{font-size:14.5px;line-height:1.85}
  .block{padding:96px 24px}
  .block--alt{padding:96px 24px}
  .hero{padding:120px 20px 96px}
  .hero--small{padding:88px 20px 64px}
  .closing{padding:120px 24px}
  .block-head{flex-direction:column;gap:12px;margin-bottom:40px}
  .block-num{padding-top:0}
  .site-header__inner{padding:14px 20px}
  .quad-2x2__cell{padding:36px 28px;min-height:0}
  .compare__col{padding:36px 28px}
  .glossary__item{padding:28px 24px}
  .form{gap:24px}
  /* mobile typography fixes — prevent horizontal overflow on small screens */
  .hero h1{font-size:clamp(22px,6.2vw,34px);line-height:1.38;letter-spacing:-.01em;word-break:keep-all;overflow-wrap:break-word;font-feature-settings:"palt" 1}
  .hero__sub{font-size:clamp(15px,4.4vw,19px);padding-left:16px}
  .hero__statement{font-size:14px;line-height:1.95;word-break:break-all;line-break:strict}
  .lead{word-break:break-all}
  .pillar__body,.tier-card__body,.role__body,.glossary__def,.compare li,.legal-block p,.legal-block li{word-break:break-all;line-break:strict}
  .hero__meta{font-size:10px;letter-spacing:.28em;gap:14px;flex-wrap:wrap;margin-bottom:48px}
  .hero__inner{overflow-wrap:break-word}
  .hero__cta{padding:16px 24px;font-size:13px}
  .block-title{font-size:clamp(22px,5.8vw,28px);line-height:1.4}
  .closing__title{font-size:clamp(26px,6.4vw,34px)}
  .voice__quote{font-size:clamp(20px,5.6vw,28px);padding-left:20px}
  .insight__num{font-size:clamp(64px,18vw,96px)}
  .quote-box{padding:36px 28px}
  .quote-box__text{font-size:clamp(16px,4.4vw,20px)}
  .stair__step{padding:28px 24px 28px 36px}
  .tier-card__num{font-size:44px}
  .tier-card__title{font-size:21px}
  .pillar__num{font-size:44px}
  .nav{gap:0}
  .nav .cta{padding:10px 18px;font-size:13px}
  .form input,.form textarea,.form select{font-size:16px}/* iOS zoom prevent */
  .legal-block h2{font-size:clamp(19px,5.4vw,22px)}
  .insight__inner{gap:24px}
}

/* Tablet 641-1024px */
@media (min-width:641px) and (max-width:1024px){
  .block{padding:112px 36px}
  .hero{padding:140px 36px 112px}
  .insight__inner{gap:48px}
}

/* Desktop 1025-1440px : default */

/* Wide 1441px〜 — 中央寄せのみ。横に広がりすぎない */
@media (min-width:1441px){
  .block,
  .site-header__inner,
  .site-footer__inner,
  .hero__inner,
  .closing__inner{max-width:1280px}
}

/* ============================================================
   29. PRINT — 一応カバー
   ============================================================ */
@media print{
  .site-header,.site-footer,.hero__cta,.btn-primary,.btn-secondary{display:none!important}
  .hero{background:#fff;color:#000;padding:24px 0}
  .hero h1,.hero__sub,.hero__statement{color:#000!important}
  .block{padding:24px 0;page-break-inside:avoid}
  body::before{display:none}
}

/* ============================================================
   30. TAG PILL — Services Hero サブ枠用「問いを与える研修。」
   ============================================================ */
.tag-pill{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--f-serif);font-size:15px;
  color:rgba(255,255,255,.86);font-weight:400;
  border:1px solid rgba(255,255,255,.28);
  padding:10px 22px;margin-top:32px;
  letter-spacing:.04em;
}
.tag-pill::before{
  content:"";display:inline-block;
  width:18px;height:1px;background:var(--c-accent);
}

/* ============================================================
   31. LOGO IMG — ヘッダーロゴSVG表示
   ============================================================ */
.brand img{
  height:28px;width:auto;display:block;vertical-align:middle;
}

/* ============================================================
   32. ABOUT FOUNDER GRID — レスポンシブ対応
   ============================================================ */
.founder-grid{
  display:grid;grid-template-columns:1fr 2fr;gap:64px;align-items:start;
}
.founder-portrait{aspect-ratio:3/4;min-height:320px;overflow:hidden}
.founder-portrait img{width:100%;height:100%;object-fit:cover}
@media (max-width:780px){
  .founder-grid{grid-template-columns:1fr;gap:40px}
}

/* ============================================================
   33. LEGAL PAGE — Privacy / Terms
   ============================================================ */
.legal-block{
  max-width:860px;margin:0 auto;
  padding:120px 40px;
}
.legal-block h2{
  font-family:var(--f-serif);
  font-size:clamp(22px,2.8vw,28px);
  font-weight:600;line-height:1.55;
  margin:64px 0 16px;
  padding-bottom:14px;
  border-bottom:1px solid var(--c-line-soft);
}
.legal-block h2:first-of-type{margin-top:0}
.legal-block h2 .num{
  font-family:var(--f-mono);font-size:13px;
  letter-spacing:.18em;color:var(--c-accent);
  display:block;margin-bottom:8px;font-weight:600;
}
.legal-block p,.legal-block li{
  font-size:15px;line-height:1.95;
  color:var(--c-ink);margin-bottom:16px;
}
.legal-block ul,.legal-block ol{
  padding-left:24px;margin-bottom:24px;
}
.legal-block li{margin-bottom:8px}
.legal-block .updated{
  font-family:var(--f-mono);font-size:12px;
  color:var(--c-mute);letter-spacing:.12em;
  margin-bottom:48px;padding-bottom:24px;
  border-bottom:1px solid var(--c-line-soft);
}
.legal-block a{
  color:var(--c-accent);
  border-bottom:1px solid var(--c-accent);
  transition:color var(--dur-1) var(--ease);
}
.legal-block a:hover{color:var(--c-accent-deep)}

@media (max-width:640px){
  .legal-block{padding:80px 24px}
}

/* ============================================================
   34. SUBSCRIBE FORM — Insights購読
   ============================================================ */
.subscribe-form{
  margin-top:32px;display:flex;gap:16px;flex-wrap:wrap;max-width:600px;
}
.subscribe-form label{
  font-family:var(--f-mono);font-size:11px;letter-spacing:.2em;
  color:var(--c-mute);text-transform:uppercase;font-weight:600;width:100%;
}
.subscribe-form input{
  flex:1;min-width:280px;
  font-family:var(--f-sans);font-size:15px;
  padding:14px 16px;border:1px solid var(--c-line);
  background:var(--c-paper);
  transition:border-color var(--dur-1) var(--ease),
             box-shadow var(--dur-1) var(--ease);
}
.subscribe-form input:focus{
  border-color:var(--c-accent);
  box-shadow:0 0 0 3px var(--c-accent-tint);
  outline:none;
}
.subscribe-form button{padding:14px 32px}

/* ============================================================
   35. JS-DRIVEN ANIMATIONS — パララックス + フォーム検証
   ============================================================ */
.hero__inner{will-change:transform}
.form-error{
  font-family:var(--f-sans);font-size:12px;
  color:var(--c-accent);margin-top:6px;
  letter-spacing:.04em;
  display:none;
}
.form-error.is-active{display:block}
.form input[aria-invalid="true"],
.form textarea[aria-invalid="true"],
.form select[aria-invalid="true"]{
  border-color:var(--c-accent);
  box-shadow:0 0 0 3px var(--c-accent-tint);
}
.form-status{
  grid-column:1/-1;
  font-family:var(--f-sans);font-size:14px;
  margin-top:24px;padding:18px 22px;
  display:none;
}
.form-status.is-success{
  display:block;
  background:var(--c-paper-warm);
  border-left:2px solid var(--c-accent);
  color:var(--c-ink);
}
.form-status.is-error{
  display:block;
  background:var(--c-accent-tint);
  border-left:2px solid var(--c-accent);
  color:var(--c-accent-deep);
}

/* skip link (a11y) */
.skip-link{
  position:absolute;left:-9999px;top:0;
  background:var(--c-ink);color:#fff;
  padding:12px 20px;font-family:var(--f-mono);font-size:12px;
  letter-spacing:.18em;z-index:100;
}
.skip-link:focus{left:0}

/* hero parallax (subtle / motion-safe) */
@media (prefers-reduced-motion: no-preference){
  .hero{will-change:background-position}
}

/* About §6 background restore (carry from comp-v1 var(--c-bg-soft) to var(--c-paper-warm)) */
.about-org{background:var(--c-paper-warm)}

/* Bg-soft fallback (comp-v1 references --c-bg-soft which doesn't exist; map to paper-warm) */
:root{--c-bg-soft:#FAFAF7}