/* =====================================================================
   D.Tech Solutions — Web Design System
   スライドマスター（バリエーション A / ライト）と同一のトークン体系。
   変数名は EmDash marketing テンプレートの tokens.css と互換（--color-*,
   --spacing-*, --font-size-*）。実装時は src/styles/theme.css に移植する。
   ===================================================================== */

:root {
  color-scheme: light dark;

  /* ---- Brand palette (slide master と同値) ---- */
  --dt-ink:      #121A2B;   /* 本文・見出し（ライト） */
  --dt-mute:     #5D6678;   /* 補足 */
  --dt-line:     #D5DAE3;   /* 罫線 */
  --dt-surface:  #ECEFF4;   /* 面 */
  --dt-paper:    #F7F8FA;   /* 背景 */
  --dt-gold:     #E3B341;   /* グラフィック用アクセント（ロゴ・図形・罫） */
  --dt-gold-ink: #84610F;   /* Web 文字用アクセント。スライドの #9A7212 は paper 上 4.0:1 のため AA 用に暗化（paper 5.3:1 / surface 4.8:1） */
  --dt-navy:     #0E1626;   /* ダーク面 */
  --dt-navy-2:   #152036;
  --dt-navy-line:#2A3650;

  /* ---- Semantic tokens（EmDash tokens.css 互換名） ---- */
  --color-bg:        light-dark(var(--dt-paper), var(--dt-navy));
  --color-surface:   light-dark(var(--dt-surface), var(--dt-navy-2));
  --color-raised:    light-dark(#FFFFFF, #1A2741);
  --color-text:      light-dark(var(--dt-ink), #EEF1F6);
  --color-muted:     light-dark(var(--dt-mute), #8D99AE);
  --color-border:    light-dark(var(--dt-line), var(--dt-navy-line));
  --color-border-strong: light-dark(var(--dt-ink), #EEF1F6);
  --color-brand:     light-dark(var(--dt-gold-ink), var(--dt-gold));  /* 文字色として使うアクセント */
  --color-brand-graphic: var(--dt-gold);                              /* 図形・マーク */
  --color-on-brand:  var(--dt-navy);
  --color-inverse-bg:   light-dark(var(--dt-navy), #070C16);
  --color-inverse-text: #EEF1F6;
  --color-inverse-muted:#8D99AE;
  --color-inverse-line: var(--dt-navy-line);
  --color-danger:    light-dark(#B3261E, #F2B8B5);

  /* ---- Typography ---- */
  --font-body:    "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", Meiryo, sans-serif;
  --font-heading: var(--font-body);
  --font-latin:   "IBM Plex Sans", var(--font-body);
  --font-mono:    "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --font-weight-heading: 700;
  --font-weight-display: 700;

  --font-size-xs:  0.75rem;   /* 12 */
  --font-size-sm:  0.875rem;  /* 14 */
  --font-size-base:1rem;      /* 16 */
  --font-size-md:  1.0625rem; /* 17 本文 */
  --font-size-lg:  1.1875rem; /* 19 リード */
  --font-size-xl:  1.375rem;  /* 22 h3 */
  --font-size-2xl: clamp(1.5rem, 1.2rem + 1vw, 1.875rem);    /* 24→30 */
  --font-size-3xl: clamp(1.75rem, 1.3rem + 1.6vw, 2.5rem);   /* 28→40 h2 */
  --font-size-4xl: clamp(2.125rem, 1.4rem + 2.8vw, 3.5rem);  /* 34→56 page h1 */
  --font-size-5xl: clamp(2.375rem, 1.3rem + 4.2vw, 4.5rem);  /* 38→72 hero */
  --font-size-figure: clamp(5rem, 3rem + 8vw, 11rem);        /* KPI 数字 */

  --leading-tight: 1.3;
  --leading-snug:  1.45;
  --leading-normal:1.85;
  --tracking-heading: 0.01em;
  --tracking-label:   0.14em;

  /* ---- Spacing（4px 基準） ---- */
  --spacing-xs: 0.25rem; --spacing-sm: 0.5rem; --spacing-md: 1rem;
  --spacing-lg: 1.5rem;  --spacing-xl: 2rem;   --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;   --spacing-4xl: 6rem;  --spacing-5xl: 8rem;
  --section-y: clamp(4.5rem, 3rem + 5vw, 8rem);
  --gutter: clamp(1.25rem, 0.5rem + 3vw, 3rem);

  /* ---- Layout ---- */
  --wide-width: 1240px;
  --max-width:  760px;
  --radius-sm: 2px; --radius: 2px; --radius-lg: 2px; --radius-full: 9999px;
  --header-h: 72px;

  --transition-fast: 150ms ease;
  --transition-base: 220ms cubic-bezier(.2,.7,.2,1);
  --shadow-sm: none; --shadow: none; --shadow-lg: 0 12px 32px -16px rgb(14 22 38 / .25);
}
:root.light { color-scheme: light; }
:root.dark  { color-scheme: dark; }

/* ============================ Base ============================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}
body {
  font-family: var(--font-body); font-size: var(--font-size-md); line-height: var(--leading-normal);
  color: var(--color-text); background: var(--color-bg);
  -webkit-font-smoothing: antialiased; font-feature-settings: "palt"; letter-spacing: .02em;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: var(--font-weight-heading);
  line-height: var(--leading-tight); letter-spacing: var(--tracking-heading); text-wrap: balance; }
p { text-wrap: pretty; }
ul, ol { list-style: none; }
:focus-visible { outline: 2px solid var(--color-brand-graphic); outline-offset: 3px; }
::selection { background: color-mix(in srgb, var(--dt-gold) 40%, transparent); }
.prose a, .rt a { color: var(--color-brand); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.prose a:hover, .rt a:hover { text-decoration-thickness: 2px; }

.skip-link { position: absolute; left: 1rem; top: -5rem; z-index: 200; padding: .75rem 1rem; background: var(--color-text); color: var(--color-bg); }
.skip-link:focus { top: 1rem; }
.vh { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.container { max-width: calc(var(--wide-width) + var(--gutter) * 2); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: var(--section-y) 0; }
.section--surface { background: var(--color-surface); }
.section--inverse { background: var(--color-inverse-bg); color: var(--color-inverse-text);
  --color-text: var(--color-inverse-text); --color-muted: var(--color-inverse-muted);
  --color-border: var(--color-inverse-line); --color-border-strong: var(--color-inverse-text);
  --color-brand: var(--dt-gold); --color-surface: var(--dt-navy-2); }

/* ============================ Brand atoms ============================ */
/* Mark: 3層の D + 四角のピリオド。/public/brand/mark.svg を <img> または inline で使用 */
.mark { display: block; color: var(--color-brand-graphic); flex: none; }
.mark svg { display: block; width: 100%; height: 100%; fill: currentColor; }

.wordmark { display: inline-flex; align-items: center; gap: .65rem; color: var(--color-text); white-space: nowrap; }
.wordmark .mark { width: 30px; height: 23px; }
.wordmark b { font-family: var(--font-latin); font-weight: 600; font-size: 1.125rem; letter-spacing: 0; }
.wordmark span { font-weight: 400; font-size: 1.0625rem; letter-spacing: .02em; margin-left: .25em; }

/* Eyebrow: スライドの「— 小見出し」 */
.eyebrow { display: flex; align-items: center; gap: .875rem; font-family: var(--font-mono); font-size: var(--font-size-xs);
  font-weight: 500; letter-spacing: var(--tracking-label); text-transform: uppercase; color: var(--color-brand); }
.eyebrow::before { content: ""; width: 28px; height: 1.5px; background: var(--color-brand-graphic); flex: none; }

.sec-head { display: grid; gap: var(--spacing-md); margin-bottom: clamp(2.5rem, 1.5rem + 3vw, 4.5rem); max-width: 880px; }
.sec-head h2 { font-size: var(--font-size-3xl); margin-top: var(--spacing-sm); }
.sec-head .lead { font-size: var(--font-size-lg); color: var(--color-muted); line-height: 1.8; }
.sec-head--split { max-width: none; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); column-gap: var(--spacing-4xl); align-items: end; }
.sec-head--split .lead { grid-column: 2; grid-row: 1 / span 2; align-self: end; }
@media (max-width: 900px) { .sec-head--split { grid-template-columns: 1fr; } .sec-head--split .lead { grid-column: auto; grid-row: auto; } }

.num { font-family: var(--font-mono); font-size: var(--font-size-xs); font-weight: 500; letter-spacing: .1em; color: var(--color-brand); }

/* ============================ Buttons / links ============================ */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .75rem; min-height: 48px;
  padding: .75rem 1.5rem; font: 500 var(--font-size-sm)/1.4 var(--font-body); letter-spacing: .04em;
  border: 1.5px solid transparent; border-radius: var(--radius); cursor: pointer; text-align: center;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast); }
.btn--primary { background: var(--color-text); color: var(--color-bg); }
.btn--primary::after { content: ""; width: 7px; height: 7px; background: var(--dt-gold); flex: none; transition: transform var(--transition-base); }
.btn--primary:hover::after { transform: translateX(4px); }
.btn--primary:hover { background: color-mix(in srgb, var(--color-text) 86%, var(--color-bg)); }
.btn--secondary { border-color: var(--color-border-strong); color: var(--color-text); background: transparent; }
.btn--secondary:hover { background: var(--color-text); color: var(--color-bg); }
.btn--gold { background: var(--dt-gold); color: var(--dt-navy); }
.btn--gold:hover { background: #EDC45E; }
.btn--lg { min-height: 56px; padding: 1rem 1.75rem; font-size: var(--font-size-base); }
.btn--sm { min-height: 40px; padding: .5rem 1rem; }

.tlink { display: inline-flex; align-items: center; gap: .6rem; font-size: var(--font-size-sm); font-weight: 500;
  color: var(--color-text); padding-bottom: 3px; border-bottom: 1px solid var(--color-border-strong); }
.tlink::after { content: "→"; font-family: var(--font-latin); color: var(--color-brand); transition: transform var(--transition-base); }
.tlink:hover::after { transform: translateX(4px); }
.tlink:hover { color: var(--color-brand); border-color: var(--color-brand-graphic); }

/* ============================ Lists (bullet variants) ============================ */
.blist { display: grid; }
.blist li { position: relative; padding: .9rem 0 .9rem 1.6rem; border-bottom: 1px solid var(--color-border); line-height: 1.75; }
.blist li:first-child { border-top: 1px solid var(--color-border); }
.blist li::before { content: ""; position: absolute; left: 0; top: 1.55rem; width: 8px; height: 8px; background: var(--color-brand-graphic); }
.blist--dash li::before { width: 10px; height: 1.5px; top: 1.7rem; background: var(--color-muted); }
.blist--cross li { color: var(--color-muted); }
.blist--cross li::before { content: "×"; width: auto; height: auto; background: none; top: .9rem; font-family: var(--font-latin); color: var(--color-muted); }
.blist--check li::before { width: 12px; height: 7px; background: none; border-left: 2px solid var(--color-brand-graphic);
  border-bottom: 2px solid var(--color-brand-graphic); transform: rotate(-45deg); top: 1.45rem; }
.blist--numbered { counter-reset: n; }
.blist--numbered li { counter-increment: n; padding-left: 2.75rem; }
.blist--numbered li::before { content: counter(n, decimal-leading-zero); width: auto; height: auto; background: none; top: .95rem;
  font-family: var(--font-mono); font-size: var(--font-size-xs); color: var(--color-brand); letter-spacing: .1em; line-height: 2.2; }
.blist--plain li { padding-left: 0; } .blist--plain li::before { display: none; }

/* ============================ Header ============================ */
.site-header { position: sticky; top: 0; z-index: 100; background: color-mix(in srgb, var(--color-bg) 92%, transparent);
  backdrop-filter: saturate(1.4) blur(10px); -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid transparent; transition: border-color var(--transition-base); }
.site-header.is-scrolled { border-bottom-color: var(--color-border); }
.nav { height: var(--header-h); display: flex; align-items: center; gap: var(--spacing-xl); }
.nav-links { display: flex; gap: clamp(1rem, 0.2rem + 1.4vw, 1.875rem); margin-left: auto; }
.nav-links a { position: relative; font-size: var(--font-size-sm); font-weight: 500; color: var(--color-muted); padding: .5rem 0; transition: color var(--transition-fast); }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--color-text); }
.nav-links a[aria-current="page"]::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--color-brand-graphic); }
.nav-toggle { display: none; margin-left: auto; width: 44px; height: 44px; background: none; border: 0; cursor: pointer; position: relative; color: var(--color-text); }
.nav-toggle span, .nav-toggle::before, .nav-toggle::after { content: ""; position: absolute; left: 11px; right: 11px; height: 1.5px; background: currentColor; transition: transform var(--transition-base), opacity var(--transition-fast); }
.nav-toggle::before { top: 15px; } .nav-toggle span { top: 21px; } .nav-toggle::after { top: 27px; right: 19px; }
.nav-toggle[aria-expanded="true"]::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"]::after { transform: translateY(-6px) rotate(-45deg); right: 11px; }
.nav-toggle[aria-expanded="true"] span { opacity: 0; }
.mobile-menu { display: none; }
@media (max-width: 1080px) {
  .nav-links, .nav .nav-cta { display: none; }
  .nav-toggle { display: block; }
  .mobile-menu { position: fixed; inset: var(--header-h) 0 0 0; background: var(--color-bg); z-index: 99; padding: var(--spacing-lg) var(--gutter) var(--spacing-2xl);
    overflow-y: auto; border-top: 1px solid var(--color-border); }
  .mobile-menu.is-open { display: flex; flex-direction: column; }
  .mobile-menu a.m-link { display: flex; justify-content: space-between; align-items: center; padding: 1.1rem 0; font-size: 1.0625rem; font-weight: 500; border-bottom: 1px solid var(--color-border); }
  .mobile-menu a.m-link::after { content: "→"; font-family: var(--font-latin); color: var(--color-brand); }
  .mobile-menu .btn { margin-top: var(--spacing-xl); }
}

/* ============================ Footer ============================ */
.site-footer { background: var(--color-bg); border-top: 1px solid var(--color-border); padding-top: var(--spacing-4xl); }
.footer-grid { display: grid; grid-template-columns: 1.3fr repeat(4, 1fr); gap: var(--spacing-2xl); }
.footer-brand p { margin-top: var(--spacing-lg); font-size: var(--font-size-sm); color: var(--color-muted); line-height: 1.9; }
.footer-col h4 { font-family: var(--font-mono); font-size: var(--font-size-xs); font-weight: 500; letter-spacing: var(--tracking-label); text-transform: uppercase; color: var(--color-muted); margin-bottom: var(--spacing-lg); }
.footer-col ul { display: grid; gap: .75rem; }
.footer-col a { font-size: var(--font-size-sm); line-height: 1.6; color: color-mix(in srgb, var(--color-text) 78%, transparent); }
.footer-col a:hover { color: var(--color-text); text-decoration: underline; text-underline-offset: 3px; }
.footer-bottom { margin-top: var(--spacing-4xl); padding: var(--spacing-lg) 0 var(--spacing-xl); border-top: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: space-between; gap: var(--spacing-lg); flex-wrap: wrap;
  font-family: var(--font-mono); font-size: var(--font-size-xs); letter-spacing: .06em; color: var(--color-muted); }
.footer-bottom .addr { font-family: var(--font-body); letter-spacing: .02em; }
.theme-switch { display: inline-flex; border: 1px solid var(--color-border); }
.theme-switch button { font: inherit; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; background: none; border: 0; color: var(--color-muted); padding: .45rem .75rem; cursor: pointer; min-height: 32px; }
.theme-switch button + button { border-left: 1px solid var(--color-border); }
.theme-switch button[aria-pressed="true"] { background: var(--color-text); color: var(--color-bg); }
@media (max-width: 1080px) { .footer-grid { grid-template-columns: 1fr 1fr; } .footer-brand { grid-column: 1 / -1; } }
@media (max-width: 560px)  { .footer-grid { grid-template-columns: 1fr; } .footer-bottom { flex-direction: column; align-items: flex-start; } }

/* ============================ Block: hero ============================ */
.hero { position: relative; overflow: hidden; min-height: min(calc(100svh - var(--header-h)), 860px); display: flex; align-items: center; padding: var(--spacing-4xl) 0 var(--spacing-5xl); }
.hero .container { position: relative; z-index: 1; width: 100%; }
.hero-body { max-width: 720px; }
.hero h1 { font-size: var(--font-size-5xl); line-height: 1.25; margin-top: var(--spacing-xl); letter-spacing: .02em; }
.hero h1 em { font-style: normal; display: inline-block; position: relative; }
.hero h1 em::after { content: ""; position: absolute; left: 0; right: 0; bottom: .06em; height: .16em; background: var(--dt-gold); z-index: -1; opacity: .9; }
.hero .lead { margin-top: var(--spacing-xl); font-size: var(--font-size-lg); color: var(--color-muted); line-height: 1.95; max-width: 600px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; margin-top: var(--spacing-xl); }
.hero-tags li { display: flex; align-items: center; gap: .55rem; font-size: var(--font-size-sm); font-weight: 500; }
.hero-tags li::before { content: ""; width: 7px; height: 7px; background: var(--dt-gold); }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--spacing-md); margin-top: var(--spacing-2xl); }
.hero-meta { position: absolute; left: 0; right: 0; bottom: var(--spacing-xl); z-index: 1; }
.hero-meta .container { display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: var(--font-size-xs); letter-spacing: .1em; color: var(--color-muted); }
.hero-meta .container > span { display: flex; align-items: center; gap: .75rem; }
.hero-meta .container > span::before { content: ""; width: 1px; height: 28px; background: var(--color-border); }
/* layers visual（スライド表紙と同一の4本帯） */
.layers { position: absolute; right: 0; top: 50%; transform: translateY(-50%); width: min(40vw, 620px); display: flex; flex-direction: column; gap: clamp(12px, 1.4vw, 22px); pointer-events: none; }
.layers span { display: block; height: clamp(44px, 5.6vw, 92px); margin-left: auto; background: var(--color-surface); transform-origin: right center; animation: layer-in .9s cubic-bezier(.2,.7,.2,1) both; }
.layers span:nth-child(1) { width: 100%; }
.layers span:nth-child(2) { width: 78%; background: var(--dt-gold); animation-delay: .08s; }
.layers span:nth-child(3) { width: 56%; animation-delay: .16s; }
.layers span:nth-child(4) { width: 34%; background: transparent; border: 1.5px solid var(--color-border); animation-delay: .24s; }
@keyframes layer-in { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@media (max-width: 1080px) {
  .hero { min-height: 0; padding: var(--spacing-3xl) 0 var(--spacing-4xl); }
  .layers { position: relative; top: auto; transform: none; width: 72%; margin: 0 0 var(--spacing-2xl) auto; }
  .hero { flex-direction: column-reverse; align-items: stretch; }
  .hero-meta { display: none; }
}

/* ============================ Block: page_header ============================ */
.page-header { position: relative; overflow: hidden; padding: clamp(3rem, 2rem + 4vw, 6rem) 0 clamp(3.5rem, 2rem + 4vw, 6.5rem); border-bottom: 1px solid var(--color-border); }
.breadcrumb { display: flex; flex-wrap: wrap; gap: .5rem; font-family: var(--font-mono); font-size: var(--font-size-xs); letter-spacing: .06em; color: var(--color-muted); margin-bottom: clamp(2rem, 1rem + 3vw, 4rem); }
.breadcrumb li + li::before { content: "/"; margin-right: .5rem; color: var(--color-border); }
.breadcrumb a:hover { color: var(--color-text); }
.page-header-grid { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--spacing-3xl); align-items: end; }
.page-header h1 { font-size: var(--font-size-4xl); margin-top: var(--spacing-lg); }
.page-header .lead { margin-top: var(--spacing-lg); font-size: var(--font-size-lg); color: var(--color-muted); max-width: 720px; line-height: 1.9; }
.page-header .figure { text-align: right; }
.figure-v { font-family: var(--font-latin); font-weight: 300; font-size: var(--font-size-figure); line-height: .85; letter-spacing: -.04em; color: var(--color-text); }
.figure-u { display: block; font-size: var(--font-size-lg); font-weight: 700; margin-top: var(--spacing-md); letter-spacing: .04em; }
.figure-u::before { content: ""; display: inline-block; width: 10px; height: 10px; background: var(--dt-gold); margin-right: .6rem; vertical-align: .05em; }
.page-header .ph-layers { position: absolute; right: 0; top: 0; bottom: 0; width: 22vw; max-width: 320px; display: flex; flex-direction: column; justify-content: center; gap: 10px; pointer-events: none; }
.page-header .ph-layers span { height: 18px; margin-left: auto; background: var(--color-surface); }
.page-header .ph-layers span:nth-child(1) { width: 100%; } .page-header .ph-layers span:nth-child(2) { width: 70%; background: var(--dt-gold); } .page-header .ph-layers span:nth-child(3) { width: 40%; }
@media (max-width: 900px) { .page-header-grid { grid-template-columns: 1fr; } .page-header .figure { text-align: left; } .page-header .ph-layers { display: none; } }

/* ============================ Block: audience_cards / strengths / link_cards ============================ */
.cols3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1.5rem, 0.5rem + 2.5vw, 3.5rem); }
@media (max-width: 960px) { .cols3 { grid-template-columns: 1fr; } }
.card-rule { display: flex; flex-direction: column; border-top: 2px solid var(--color-border-strong); padding-top: var(--spacing-xl); }
.card-rule h3 { font-size: var(--font-size-xl); margin: var(--spacing-md) 0 var(--spacing-lg); line-height: 1.5; }
.card-rule p { color: var(--color-muted); font-size: var(--font-size-base); line-height: 1.9; }
.card-rule .blist { margin-bottom: var(--spacing-xl); font-size: var(--font-size-base); }
.card-rule .tlink { margin-top: auto; align-self: flex-start; }
.card-rule--a { transition: border-color var(--transition-base); }
.card-rule--a:hover { border-top-color: var(--dt-gold); }

.strength { display: flex; flex-direction: column; }
.strength .big { font-family: var(--font-latin); font-weight: 300; font-size: clamp(3.5rem, 2.5rem + 3vw, 5.5rem); line-height: 1; letter-spacing: -.03em; color: var(--color-brand-graphic); }
.strength h3 { font-size: var(--font-size-xl); margin: var(--spacing-lg) 0 var(--spacing-md); padding-top: var(--spacing-lg); border-top: 1px solid var(--color-border); }
.strength > p { color: var(--color-muted); line-height: 1.9; margin-bottom: var(--spacing-lg); }
.strength .blist { margin-bottom: var(--spacing-xl); font-size: var(--font-size-base); }
.strength .tlink { margin-top: auto; align-self: flex-start; }

/* 対応クラウド：ロゴは使わず、全ベンダーを同じ文字組み・同じ重みで並べる（アルファベット順） */
.platforms { display: grid; grid-template-columns: 11rem 1fr; align-items: center; gap: var(--spacing-md) var(--spacing-xl);
  margin-top: clamp(3rem, 2rem + 3vw, 5rem); padding: var(--spacing-lg) 0; border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.platforms-k { font-family: var(--font-mono); font-size: var(--font-size-xs); letter-spacing: var(--tracking-label); text-transform: uppercase; color: var(--color-muted); }
.platforms ul { display: flex; flex-wrap: wrap; }
.platforms li { font-family: var(--font-latin); font-size: var(--font-size-base); font-weight: 500; letter-spacing: .01em; padding: .2rem 1.5rem; border-left: 1px solid var(--color-border); }
.platforms li:first-child { padding-left: 0; border-left: 0; }
.platforms-note { grid-column: 2; font-size: var(--font-size-sm); color: var(--color-muted); }
@media (max-width: 760px) { .platforms { grid-template-columns: 1fr; } .platforms-note { grid-column: auto; } .platforms li { padding: .2rem 1rem; } }

.lcard { display: flex; flex-direction: column; background: var(--color-raised); padding: clamp(1.5rem, 1rem + 1.5vw, 2.5rem); min-height: 280px; border: 1px solid var(--color-border); transition: border-color var(--transition-base), transform var(--transition-base); }
.lcard:hover { border-color: var(--color-border-strong); }
.lcard .kind { font-family: var(--font-mono); font-size: var(--font-size-xs); letter-spacing: var(--tracking-label); text-transform: uppercase; color: var(--color-brand); display: flex; justify-content: space-between; }
.lcard h3 { font-size: var(--font-size-xl); margin: var(--spacing-xl) 0 var(--spacing-md); }
.lcard p { font-size: var(--font-size-base); color: var(--color-muted); line-height: 1.9; }
.lcard .tlink { margin-top: auto; padding-top: var(--spacing-xl); align-self: flex-start; border: 0; }

/* ============================ Block: numbered_list（スライド目次型） ============================ */
.toc { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: var(--spacing-4xl); }
.toc .sec-head { margin-bottom: 0; align-self: start; position: sticky; top: calc(var(--header-h) + 2rem); }
.toc ol { border-top: 1px solid var(--color-border-strong); }
.toc li { display: grid; grid-template-columns: 4.5rem 1fr; align-items: baseline; padding: 1.6rem 0; border-bottom: 1px solid var(--color-border); font-size: var(--font-size-xl); font-weight: 500; line-height: 1.6; }
.toc li .n { font-family: var(--font-latin); font-size: var(--font-size-xl); font-weight: 400; color: var(--color-brand); }
@media (max-width: 900px) { .toc { grid-template-columns: 1fr; gap: var(--spacing-2xl); } .toc .sec-head { position: static; } .toc li { grid-template-columns: 3rem 1fr; font-size: var(--font-size-lg); } }

/* ============================ Block: offer_band ============================ */
.offer-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--spacing-4xl); align-items: start; }
.offer-figure { display: flex; align-items: flex-end; gap: var(--spacing-lg); margin-top: var(--spacing-2xl); padding-top: var(--spacing-xl); border-top: 1px solid var(--color-border); }
.offer-figure .figure-v { color: var(--dt-gold); font-size: clamp(7rem, 4rem + 9vw, 13rem); }
.offer-figure .fu { padding-bottom: 1.2rem; }
.offer-figure .fu b { display: block; font-size: var(--font-size-2xl); }
.offer-figure .fu small { display: block; color: var(--color-muted); font-size: var(--font-size-sm); margin-top: .4rem; }
.offer-cols { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-2xl) var(--spacing-xl); }
.offer-cols > div:last-child { grid-column: 1 / -1; }
.offer-cols h3 { font-family: var(--font-mono); font-size: var(--font-size-xs); font-weight: 500; letter-spacing: var(--tracking-label); color: var(--color-brand); text-transform: uppercase; margin-bottom: var(--spacing-md); }
.offer-cols h3 span { font-family: var(--font-body); text-transform: none; letter-spacing: .04em; font-size: var(--font-size-base); color: var(--color-text); font-weight: 700; display: block; margin-top: .35rem; }
.offer-cols .blist { font-size: var(--font-size-base); }
.offer-cta { margin-top: var(--spacing-2xl); display: flex; gap: var(--spacing-md); flex-wrap: wrap; }
@media (max-width: 960px) { .offer-grid { grid-template-columns: 1fr; gap: var(--spacing-2xl); } .offer-cols { grid-template-columns: 1fr; } }

/* ============================ Block: steps（スライド Process 型） ============================ */
.steps { display: grid; grid-template-columns: repeat(var(--cols, 3), minmax(0, 1fr)); row-gap: var(--spacing-3xl); }
.step { position: relative; padding-right: var(--spacing-xl); }
.step::before { content: ""; position: absolute; left: 0; right: 0; top: 9px; height: 1.5px; background: var(--color-border); }
.step .dot { position: relative; z-index: 1; width: 20px; height: 20px; border-radius: 50%; border: 2px solid var(--dt-gold); background: var(--color-bg); }
.section--surface .step .dot { background: var(--color-surface); }
.step.is-first .dot, .step.is-final .dot { background: var(--dt-gold); }
.step.is-final .dot { border-radius: 0; }
.step .ph { font-family: var(--font-mono); font-size: var(--font-size-xs); letter-spacing: .12em; color: var(--color-brand); margin-top: var(--spacing-lg); }
.step h3 { font-size: var(--font-size-xl); margin-top: .4rem; line-height: 1.5; }
.step p { margin-top: var(--spacing-sm); font-size: var(--font-size-base); color: var(--color-muted); line-height: 1.85; }
@media (max-width: 960px) {
  .steps { grid-template-columns: 1fr; row-gap: 0; }
  .step { padding: 0 0 var(--spacing-xl) 2.75rem; }
  .step::before { left: 9px; right: auto; top: 0; bottom: 0; width: 1.5px; height: auto; }
  .step:last-child::before { bottom: auto; height: 20px; }
  .step .dot { position: absolute; left: 0; top: 0; }
  .step .ph { margin-top: 0; line-height: 20px; }
}

/* ============================ Block: faq ============================ */
.faq-wrap { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: var(--spacing-4xl); }
.faq-wrap .sec-head { margin-bottom: 0; align-self: start; }
.faq-list { border-top: 1px solid var(--color-border-strong); }
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-item summary { list-style: none; display: grid; grid-template-columns: 2.75rem 1fr 24px; align-items: baseline; gap: 0; padding: 1.5rem 0; cursor: pointer; font-weight: 700; font-size: var(--font-size-md); line-height: 1.6; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .q { font-family: var(--font-latin); font-weight: 500; color: var(--color-brand); }
.faq-item summary .pm { position: relative; width: 14px; height: 14px; justify-self: end; align-self: center; }
.faq-item summary .pm::before, .faq-item summary .pm::after { content: ""; position: absolute; left: 0; right: 0; top: 6px; height: 1.5px; background: var(--color-text); transition: transform var(--transition-base); }
.faq-item summary .pm::after { transform: rotate(90deg); }
.faq-item[open] summary .pm::after { transform: rotate(0); }
.faq-item summary:hover { color: var(--color-brand); }
.faq-item .a { display: grid; grid-template-columns: 2.75rem 1fr 24px; padding: 0 0 1.75rem; color: var(--color-muted); font-size: var(--font-size-base); line-height: 1.95; }
.faq-item .a::before { content: "A"; font-family: var(--font-latin); color: var(--color-muted); }
.faq-more { margin-top: var(--spacing-xl); }
.faq-group + .faq-group { margin-top: var(--spacing-3xl); }
.faq-group h3 { font-size: var(--font-size-lg); margin-bottom: var(--spacing-md); display: flex; gap: .75rem; align-items: baseline; }
.faq-group h3 .num { font-size: var(--font-size-xs); }
@media (max-width: 900px) { .faq-wrap { grid-template-columns: 1fr; gap: var(--spacing-xl); } }

/* ============================ Block: contact_cta（スライド Closing 型） ============================ */
.contact-cta { position: relative; overflow: hidden; }
.contact-cta .mark-lg { width: 66px; height: 50px; margin-bottom: var(--spacing-3xl); }
.cc-grid { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: var(--spacing-4xl); align-items: end; }
.cc-grid h2 { font-size: var(--font-size-4xl); line-height: 1.35; margin-top: var(--spacing-lg); }
.cc-actions { display: flex; flex-direction: column; align-items: flex-start; gap: var(--spacing-md); margin-top: var(--spacing-2xl); }
.cc-notes { border-top: 2px solid var(--color-border-strong); }
.cc-notes li { display: grid; grid-template-columns: 3rem 1fr; padding: 1.1rem 0; border-bottom: 1px solid var(--color-border); font-size: var(--font-size-sm); line-height: 1.85; color: var(--color-muted); }
.cc-notes li .num { line-height: 2.1; }
.contact-cta .giant { position: absolute; right: -6vw; bottom: -4vw; width: 34vw; max-width: 520px; aspect-ratio: 132/100; opacity: .07; color: var(--color-text); pointer-events: none; }
@media (max-width: 960px) { .cc-grid { grid-template-columns: 1fr; gap: var(--spacing-2xl); } .contact-cta .giant { display: none; } }

/* ============================ Block: list_columns / spec_table / definition_table ============================ */
.lcols { display: grid; grid-template-columns: repeat(var(--cols, 2), minmax(0, 1fr)); gap: var(--spacing-2xl) clamp(1.5rem, 0.5rem + 3vw, 4rem); }
.lcols h3 { font-size: var(--font-size-lg); margin-bottom: var(--spacing-lg); display: flex; gap: .75rem; align-items: baseline; }
.lcols--single { --cols: 1; max-width: 880px; }
.lcols--single .blist { font-size: var(--font-size-lg); }
@media (max-width: 900px) { .lcols { grid-template-columns: 1fr; } }

.spec { border-top: 2px solid var(--color-border-strong); }
.spec-row { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 8fr); gap: var(--spacing-xl); padding: var(--spacing-xl) 0; border-bottom: 1px solid var(--color-border); }
.spec-row > h3 { font-size: var(--font-size-base); display: flex; gap: .9rem; align-items: baseline; line-height: 1.6; }
.spec-row ul { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .5rem var(--spacing-xl); }
.spec-row li { position: relative; padding-left: 1.4rem; line-height: 1.8; }
.spec-row li::before { content: ""; position: absolute; left: 0; top: .7em; width: 7px; height: 7px; background: var(--dt-gold); }
@media (max-width: 760px) { .spec-row { grid-template-columns: 1fr; gap: var(--spacing-md); } .spec-row ul { grid-template-columns: 1fr; } }

.dtable { border-top: 2px solid var(--color-border-strong); max-width: 980px; }
.dtable div { display: grid; grid-template-columns: 11rem 1fr; gap: var(--spacing-lg); padding: 1.35rem 0; border-bottom: 1px solid var(--color-border); }
.dtable dt { font-family: var(--font-mono); font-size: var(--font-size-xs); letter-spacing: .1em; color: var(--color-muted); padding-top: .3rem; }
.dtable dd { line-height: 1.85; }
@media (max-width: 600px) { .dtable div { grid-template-columns: 1fr; gap: .25rem; } }

/* ============================ Block: statement / principles / rich_text / related / notice ============================ */
.statement blockquote { font-family: var(--font-heading); font-weight: 700; font-size: clamp(2rem, 1.2rem + 3.2vw, 4rem); line-height: 1.45; letter-spacing: .02em; margin-top: var(--spacing-xl); text-wrap: balance; }
.statement blockquote em { font-style: normal; color: var(--color-brand); }
.statement .by { display: flex; gap: var(--spacing-lg); align-items: flex-start; margin-top: var(--spacing-2xl); max-width: 720px; color: var(--color-muted); font-size: var(--font-size-lg); line-height: 1.9; }
.statement .by::before { content: ""; width: 48px; height: 1.5px; background: var(--dt-gold); flex: none; margin-top: 1rem; }

.principles { counter-reset: p; }
.principle { border-top: 2px solid var(--color-border-strong); padding-top: var(--spacing-xl); }
.principle .num { display: block; }
.principle h3 { font-size: var(--font-size-xl); margin: var(--spacing-md) 0 var(--spacing-sm); }
.principle p { color: var(--color-muted); line-height: 1.9; }

.rt { max-width: var(--max-width); font-size: var(--font-size-md); line-height: 2; }
.rt p + p { margin-top: 1em; }

.related { border-top: 1px solid var(--color-border-strong); display: grid; grid-template-columns: 1fr 1fr; column-gap: var(--spacing-2xl); }
.related a { display: grid; grid-template-columns: 2.75rem 1fr auto; align-items: baseline; padding: 1.25rem 0; border-bottom: 1px solid var(--color-border); font-weight: 500; line-height: 1.6; transition: color var(--transition-fast); }
.related a::after { content: "→"; font-family: var(--font-latin); color: var(--color-brand); transition: transform var(--transition-base); }
.related a:hover { color: var(--color-brand); } .related a:hover::after { transform: translateX(4px); }
@media (max-width: 760px) { .related { grid-template-columns: 1fr; } }

.notice { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: var(--spacing-4xl); align-items: baseline; }
.notice h2 { font-size: var(--font-size-2xl); margin-top: var(--spacing-md); }
.notice .body { border-left: 2px solid var(--dt-gold); padding: .25rem 0 .25rem var(--spacing-xl); color: var(--color-muted); line-height: 1.9; }
.notice .body .tlink { margin-top: var(--spacing-lg); }
@media (max-width: 900px) { .notice { grid-template-columns: 1fr; gap: var(--spacing-lg); } }

/* ============================ Block: contact_form ============================ */
.cf-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: var(--spacing-4xl); align-items: start; }
.form { display: grid; gap: var(--spacing-2xl); }
.field { display: grid; gap: .75rem; }
.field > label, .field > legend { font-weight: 700; font-size: var(--font-size-base); display: flex; align-items: center; gap: .6rem; }
.req, .opt { font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em; padding: .15rem .45rem; font-weight: 500; line-height: 1.4; }
.req { background: var(--color-text); color: var(--color-bg); } .opt { border: 1px solid var(--color-border); color: var(--color-muted); }
fieldset.field { border: 0; }
.input, .textarea, .select { width: 100%; font: inherit; font-size: var(--font-size-base); color: var(--color-text); background: var(--color-raised);
  border: 1px solid var(--color-border); border-radius: var(--radius); padding: .9rem 1rem; min-height: 52px; transition: border-color var(--transition-fast), box-shadow var(--transition-fast); }
.textarea { min-height: 200px; resize: vertical; line-height: 1.8; }
.input:hover, .textarea:hover, .select:hover { border-color: var(--color-muted); }
.input:focus, .textarea:focus, .select:focus { outline: none; border-color: var(--color-text); box-shadow: inset 0 -2px 0 var(--dt-gold); }
.field .hint { font-size: var(--font-size-sm); color: var(--color-muted); }
.field.has-error .input, .field.has-error .textarea { border-color: var(--color-danger); }
.field .err { font-size: var(--font-size-sm); color: var(--color-danger); display: none; }
.field.has-error .err { display: block; }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.chip span { display: inline-flex; align-items: center; gap: .55rem; min-height: 44px; padding: .55rem 1rem; border: 1px solid var(--color-border); background: var(--color-raised); font-size: var(--font-size-sm); cursor: pointer; transition: all var(--transition-fast); }
.chip span::before { content: ""; width: 8px; height: 8px; border: 1.5px solid var(--color-muted); }
.chip input:checked + span { border-color: var(--color-text); background: var(--color-text); color: var(--color-bg); }
.chip input:checked + span::before { background: var(--dt-gold); border-color: var(--dt-gold); }
.chip input:focus-visible + span { outline: 2px solid var(--dt-gold); outline-offset: 2px; }
.consent { display: flex; gap: .75rem; align-items: flex-start; font-size: var(--font-size-sm); line-height: 1.8; }
.consent input { width: 20px; height: 20px; accent-color: var(--dt-navy); margin-top: .2rem; flex: none; }
.consent a { color: var(--color-brand); text-decoration: underline; text-underline-offset: 3px; }
.cf-aside { position: sticky; top: calc(var(--header-h) + 2rem); background: var(--color-surface); padding: var(--spacing-xl); }
.cf-aside h3 { font-size: var(--font-size-base); margin: var(--spacing-md) 0 var(--spacing-md); }
.cf-aside .blist { font-size: var(--font-size-sm); }
.cf-aside .blist li:first-child { border-top: 0; }
.cf-aside .addr { margin-top: var(--spacing-xl); padding-top: var(--spacing-lg); border-top: 1px solid var(--color-border); font-size: var(--font-size-sm); color: var(--color-muted); line-height: 1.9; }
.form-done { padding: var(--spacing-2xl); border-top: 2px solid var(--color-border-strong); background: var(--color-surface); }
.form-done h3 { font-size: var(--font-size-2xl); margin: var(--spacing-md) 0; }
@media (max-width: 960px) { .cf-grid { grid-template-columns: 1fr; gap: var(--spacing-2xl); } .cf-aside { position: static; } }

/* ============================ Reveal-on-scroll（任意） ============================ */
.rv { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s cubic-bezier(.2,.7,.2,1); }
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .rv { opacity: 1; transform: none; } }