/* =============================================================
   v48.css — Kashinoya Renewal Design v4.8
   名前空間：k8-（biz-com）／ k8-co-（corporate）／ k8-pt-（portal）
   フォント：Inter（英字）/ Noto Sans JP（本文）/ Shippori Mincho（コーポレート見出し）
   中華フォント不使用・フォールバック先頭は日本語フォント（CLAUDE.md §10 準拠）
   ============================================================= */

:root {
  --ink: #0b1220;
  --ink-2: #16202f;
  --ink-soft: #3a4859;
  --ink-mute: #6b7888;
  --line: #e7e3da;
  --line-2: #efece4;
  --paper: #fbfaf7;
  --paper-2: #f4f1ea;
  --white: #ffffff;
  --gold: #c8a04e;
  --gold-deep: #a9842f;
  --gold-soft: #e7c873;
  --tech: #0e7490;
  --tech-bright: #06b6d4;
  --touch: #c4791f;
  --touch-bright: #e0982e;
  --emerald: #0f8a5f;
  --danger: #c0392b;
  --ok: #0f8a5f;
  --r-sm: 9px;
  --r: 14px;
  --r-lg: 22px;
  --r-xl: 30px;
  --shadow-s: 0 1px 2px rgba(11,18,32,.05), 0 2px 8px rgba(11,18,32,.05);
  --shadow-m: 0 6px 24px rgba(11,18,32,.08);
  --shadow-l: 0 18px 50px rgba(11,18,32,.14);
  --maxw: 1180px;
  --sans: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  --en: "Inter", "Noto Sans JP", "Hiragino Sans", sans-serif;
  --serif: "Shippori Mincho", "Yu Mincho", "Hiragino Mincho ProN", serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; font-family: var(--sans); color: var(--ink); background: var(--paper); line-height: 1.75; -webkit-font-smoothing: antialiased; font-feature-settings: "palt" 1; }
img, svg { max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0; line-height: 1.3; letter-spacing: .01em; }
p { margin: 0; }
ul, ol, dl { margin: 0; padding: 0; }
:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; border-radius: 4px; }
.k8-vh { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.k8-skip { position: absolute; left: -999px; top: 0; z-index: 200; background: var(--ink); color: #fff; padding: .7rem 1.2rem; border-radius: 0 0 var(--r-sm) 0; }
.k8-skip:focus { left: 0; }

/* ---------- Buttons ---------- */
.k8-btn { display: inline-flex; align-items: center; gap: .5em; font-family: var(--sans); font-weight: 700; font-size: .98rem; line-height: 1; padding: .9rem 1.5rem; border-radius: 999px; border: 1.5px solid transparent; cursor: pointer; transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease; white-space: nowrap; }
.k8-btn .k8-arr { transition: transform .2s ease; }
.k8-btn:hover .k8-arr { transform: translateX(3px); }
.k8-btn-primary { background: var(--ink); color: #fff; box-shadow: 0 6px 18px rgba(11,18,32,.22); }
.k8-btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(11,18,32,.28); }
.k8-btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.k8-btn-ghost:hover { border-color: var(--ink); background: var(--white); }
.k8-btn-light { background: #fff; color: var(--ink); }
.k8-btn-light:hover { transform: translateY(-2px); box-shadow: var(--shadow-m); }
.k8-btn-sm { padding: .62rem 1.05rem; font-size: .88rem; }
.k8-btn-lg { padding: 1.05rem 1.9rem; font-size: 1.05rem; }
.k8-btn-block { display: flex; width: 100%; justify-content: center; }

.k8-textlink { display: inline-flex; align-items: center; gap: .4em; font-weight: 700; color: var(--ink); border-bottom: 2px solid var(--gold); padding-bottom: 2px; }
.k8-textlink:hover { color: var(--gold-deep); }
.k8-textlink .k8-arr { transition: transform .2s ease; }
.k8-textlink:hover .k8-arr { transform: translateX(3px); }

/* ---------- Eyebrow / dot ---------- */
.k8-eyebrow { font-family: var(--en); font-weight: 700; font-size: .8rem; letter-spacing: .16em; color: var(--gold-deep); display: inline-flex; align-items: center; gap: .55em; margin: 0 0 .8rem; text-transform: uppercase; }
.k8-eyebrow--light { color: var(--gold-soft); }
.k8-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--gold); display: inline-block; }

/* =====================================================
   biz-com (k8-)
   ===================================================== */
.k8-site { display: flex; flex-direction: column; min-height: 100vh; }
.k8-main { flex: 1; }
.k8-sec { max-width: var(--maxw); margin: 0 auto; padding: clamp(3rem, 6vw, 5.5rem) clamp(1.1rem, 4vw, 2rem); }
.k8-sec--tint { max-width: none; background: var(--paper-2); }
.k8-sec--tint > * { max-width: var(--maxw); margin-inline: auto; }

/* Header */
.k8-header { position: sticky; top: 0; z-index: 100; background: rgba(251,250,247,.82); backdrop-filter: saturate(150%) blur(14px); border-bottom: 1px solid var(--line); }
.k8-header.is-scrolled { box-shadow: var(--shadow-s); }
.k8-header-inner { max-width: var(--maxw); margin: 0 auto; padding: .65rem clamp(1.1rem, 4vw, 2rem); display: flex; align-items: center; gap: 1.2rem; }
.k8-brand { display: inline-flex; align-items: center; gap: .65rem; }
.k8-mark { width: 40px; height: 40px; flex: none; display: grid; place-items: center; border-radius: 11px; background: var(--ink); color: var(--gold-soft); font-family: var(--serif); font-weight: 700; font-size: 1.35rem; }
.k8-brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.k8-brand-ja { font-weight: 800; font-size: 1.04rem; }
.k8-brand-ja b { color: var(--gold-deep); }
.k8-brand-en { font-family: var(--en); font-size: .62rem; letter-spacing: .14em; color: var(--ink-mute); }
.k8-nav { display: flex; gap: clamp(.5rem, 1.6vw, 1.5rem); margin-left: auto; }
.k8-nav a { font-weight: 600; font-size: .95rem; color: var(--ink-soft); padding: .4rem .1rem; border-bottom: 2px solid transparent; transition: color .15s, border-color .15s; }
.k8-nav a:hover { color: var(--ink); }
.k8-nav a[aria-current="page"] { color: var(--ink); border-color: var(--gold); }
.k8-header-actions { display: flex; align-items: center; gap: .55rem; }
.k8-burger { display: none; flex-direction: column; gap: 5px; width: 44px; height: 44px; align-items: center; justify-content: center; background: none; border: 1px solid var(--line); border-radius: 10px; cursor: pointer; }
.k8-burger span { width: 20px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .25s, opacity .2s; }
.k8-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.k8-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.k8-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.k8-drawer { display: none; flex-direction: column; gap: .2rem; padding: 1rem clamp(1.1rem, 4vw, 2rem) 1.6rem; border-top: 1px solid var(--line); background: var(--paper); }
.k8-drawer a { padding: .85rem .2rem; font-weight: 600; border-bottom: 1px solid var(--line-2); }
.k8-drawer a.k8-btn { border: 1.5px solid transparent; margin-top: .6rem; justify-content: center; }
.k8-drawer.is-open { display: flex; }

/* Hero */
.k8-hero { position: relative; overflow: hidden; background: linear-gradient(165deg, #0b1220 0%, #16202f 55%, #1b2b3f 100%); color: #fff; }
.k8-hero-bg { position: absolute; inset: 0; }
.k8-orb { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .5; }
.k8-orb-a { width: 420px; height: 420px; background: #0891b2; top: -120px; right: -60px; }
.k8-orb-b { width: 360px; height: 360px; background: var(--gold-deep); bottom: -140px; left: -80px; opacity: .42; }
.k8-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px); background-size: 46px 46px; mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000, transparent); }
.k8-hero-inner { position: relative; max-width: var(--maxw); margin: 0 auto; padding: clamp(3.5rem, 8vw, 6.5rem) clamp(1.1rem, 4vw, 2rem) clamp(3rem, 6vw, 5rem); }
.k8-hero-title { font-size: clamp(2.2rem, 6vw, 4rem); font-weight: 900; letter-spacing: .01em; }
.k8-grad { background: linear-gradient(100deg, var(--gold-soft), #f4d98a 60%, var(--tech-bright)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.k8-hero-lead { margin: 1.4rem 0 2rem; font-size: clamp(1rem, 1.6vw, 1.18rem); color: #cdd6e2; max-width: 40em; }
.k8-hero-lead strong { color: #fff; }
.k8-hero-tags { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; margin-top: 1.8rem; font-size: .85rem; color: #9fb0c2; }
.k8-hero-tags a { padding: .4rem .9rem; border-radius: 999px; border: 1px solid rgba(255,255,255,.18); color: #e7eef6; transition: background .15s, border-color .15s; }
.k8-hero-tags a:hover { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.4); }
.k8-hero-stats { display: flex; gap: clamp(1.4rem, 4vw, 3rem); margin-top: 2.4rem; padding-top: 1.8rem; border-top: 1px solid rgba(255,255,255,.14); }
.k8-hero-stats dt { font-family: var(--en); font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; color: var(--gold-soft); line-height: 1; }
.k8-hero-stats dd { margin: .35rem 0 0; font-size: .82rem; color: #9fb0c2; }

/* Search */
.k8-search { display: flex; gap: .6rem; flex-wrap: wrap; margin-top: 2.2rem; padding: .7rem; background: rgba(255,255,255,.96); border-radius: var(--r-lg); box-shadow: var(--shadow-l); }
.k8-page-hero .k8-search, .k8-search--plain { box-shadow: var(--shadow-m); }
.k8-search-kw { flex: 1 1 280px; display: flex; align-items: center; gap: .6rem; padding: 0 1rem; background: var(--paper); border: 1px solid var(--line); border-radius: var(--r); color: var(--ink-mute); }
.k8-search-kw input { flex: 1; border: 0; background: none; padding: .95rem 0; font-size: 1rem; font-family: var(--sans); color: var(--ink); }
.k8-search-kw input:focus { outline: none; }
.k8-search-cat { display: flex; align-items: center; background: var(--paper); border: 1px solid var(--line); border-radius: var(--r); }
.k8-search-cat select { border: 0; background: none; padding: .95rem 1rem; font-size: .95rem; font-family: var(--sans); color: var(--ink); cursor: pointer; }
.k8-search .k8-btn-primary { flex: none; }

/* Trust strip */
.k8-trust { background: var(--ink-2); }
.k8-trust ul { max-width: var(--maxw); margin: 0 auto; padding: 1.1rem clamp(1.1rem, 4vw, 2rem); display: flex; flex-wrap: wrap; gap: 1rem 2.2rem; justify-content: center; list-style: none; }
.k8-trust li { display: inline-flex; align-items: center; gap: .55rem; color: #d4ddE8; font-weight: 600; font-size: .92rem; }
.k8-trust svg { width: 20px; height: 20px; color: var(--gold-soft); }

/* Section head */
.k8-sec-head { margin-bottom: 2.2rem; }
.k8-sec-head--split { display: flex; align-items: flex-end; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; }
.k8-sec-title { font-size: clamp(1.6rem, 3.4vw, 2.4rem); font-weight: 800; }
.k8-sec-lead { margin-top: .85rem; color: var(--ink-soft); max-width: 46em; }

/* Card grids */
.k8-grid-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.4rem; }
.k8-card { position: relative; display: flex; flex-direction: column; background: var(--white); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 1.5rem; box-shadow: var(--shadow-s); transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; overflow: hidden; }
.k8-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-l); border-color: color-mix(in srgb, var(--k8-accent, var(--gold)) 40%, var(--line)); }
.k8-card-head { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: 1rem; }
.k8-pill { font-size: .72rem; font-weight: 700; padding: .28rem .7rem; border-radius: 999px; letter-spacing: .02em; }
.k8-pill-cat { background: color-mix(in srgb, var(--k8-accent, var(--gold)) 14%, #fff); color: color-mix(in srgb, var(--k8-accent, var(--gold)) 75%, #000); }
.k8-pill-hot { background: #fbeae6; color: #c0392b; }
.k8-pill-open { background: #e6f6ef; color: #0f8a5f; }
.k8-pill-soon { background: #eef0f3; color: var(--ink-mute); }
.k8-card-title { font-size: 1.18rem; font-weight: 800; margin-bottom: .55rem; }
.k8-card-sum { color: var(--ink-soft); font-size: .92rem; flex: 1; }
.k8-card-meta { display: flex; gap: 1.1rem; margin: 1.1rem 0; padding: .9rem 0; border-top: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2); }
.k8-card-meta div { display: flex; flex-direction: column; gap: .15rem; }
.k8-card-meta dt { font-size: .68rem; color: var(--ink-mute); }
.k8-card-meta dd { margin: 0; font-weight: 800; font-size: .96rem; }
.k8-stars { color: var(--gold); letter-spacing: 1px; }
.k8-stars span { color: var(--line); }
.k8-card-tags { display: flex; flex-wrap: wrap; gap: .35rem; }
.k8-card-tags span { font-size: .74rem; color: var(--ink-mute); background: var(--paper-2); padding: .22rem .6rem; border-radius: 6px; }
.k8-card-cta { margin-top: 1.1rem; display: inline-flex; align-items: center; gap: .4em; font-weight: 700; color: color-mix(in srgb, var(--k8-accent, var(--gold)) 80%, #000); }
.k8-card-cta .k8-arr { transition: transform .2s; }
.k8-card:hover .k8-card-cta .k8-arr { transform: translateX(3px); }
.k8-subsidy::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--k8-accent, var(--gold)); opacity: 0; transition: opacity .2s; }
.k8-subsidy:hover::before { opacity: 1; }

/* Article cards */
.k8-feature { display: grid; grid-template-columns: 1.5fr 1fr; gap: 1.4rem; }
.k8-feature-side { display: flex; flex-direction: column; gap: 1rem; }
.k8-article { padding: 0; }
.k8-art-thumb { position: relative; aspect-ratio: 16/9; display: grid; place-items: center; background: linear-gradient(135deg, var(--ink), var(--ink-2)); color: rgba(255,255,255,.9); }
.k8-art-glyph { font-family: var(--en); font-weight: 900; font-size: 2.6rem; opacity: .85; }
.k8-art-tag { position: absolute; top: .8rem; left: .8rem; font-size: .72rem; font-weight: 700; padding: .28rem .7rem; border-radius: 999px; background: rgba(255,255,255,.92); color: var(--ink); }
.k8-tone-navy .k8-art-thumb { background: linear-gradient(135deg, #0b1220, #1e3a5f); }
.k8-tone-gold .k8-art-thumb { background: linear-gradient(135deg, #6b4f1d, var(--gold)); }
.k8-tone-blue .k8-art-thumb { background: linear-gradient(135deg, #0c3a52, var(--tech-bright)); }
.k8-tone-green .k8-art-thumb { background: linear-gradient(135deg, #0a4d38, var(--emerald)); }
.k8-tone-mixed .k8-art-thumb { background: linear-gradient(135deg, #0e7490, #a9842f); }
.k8-art-body { padding: 1.3rem 1.5rem 1.6rem; display: flex; flex-direction: column; }
.k8-art-meta { display: flex; gap: .5rem; font-size: .78rem; color: var(--ink-mute); margin-bottom: .6rem; }
.k8-art-large .k8-art-thumb { aspect-ratio: 16/8; }
.k8-art-large .k8-card-title { font-size: 1.5rem; }
.k8-art-compact { flex-direction: row; align-items: stretch; }
.k8-art-compact .k8-art-thumb { width: 110px; aspect-ratio: auto; flex: none; }
.k8-art-compact .k8-art-glyph { font-size: 1.5rem; }
.k8-art-compact .k8-art-tag { display: none; }
.k8-art-compact .k8-art-body { padding: .9rem 1.1rem; }
.k8-art-compact .k8-card-title { font-size: .98rem; }

/* Category grid */
.k8-cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 1rem; }
.k8-cat { position: relative; display: flex; flex-direction: column; gap: .35rem; padding: 1.3rem 1.4rem; background: var(--white); border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--shadow-s); transition: transform .18s, box-shadow .18s; border-left: 4px solid var(--k8-accent, var(--gold)); }
.k8-cat:hover { transform: translateY(-3px); box-shadow: var(--shadow-m); }
.k8-cat strong { font-size: 1.05rem; }
.k8-cat-n { font-size: .8rem; color: var(--ink-mute); }
.k8-cat-arr { position: absolute; right: 1.2rem; top: 1.3rem; color: var(--k8-accent, var(--gold)); font-weight: 700; }

/* CTA banner */
.k8-cta { max-width: none; background: linear-gradient(135deg, #0b1220, #16202f 60%, #233247); color: #fff; }
.k8-cta-inner { max-width: var(--maxw); margin: 0 auto; padding: clamp(2.6rem, 5vw, 4rem) clamp(1.1rem, 4vw, 2rem); display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }
.k8-cta-inner h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 800; margin-bottom: .8rem; }
.k8-cta-inner p { color: #cdd6e2; max-width: 40em; }

/* Page hero (list/contact) */
.k8-page-hero { max-width: var(--maxw); margin: 0 auto; padding: clamp(2.2rem, 5vw, 3.6rem) clamp(1.1rem, 4vw, 2rem) 1rem; }
.k8-crumb { display: flex; flex-wrap: wrap; gap: .45rem; align-items: center; font-size: .82rem; color: var(--ink-mute); margin-bottom: 1rem; }
.k8-crumb a { border-bottom: 1px solid transparent; }
.k8-crumb a:hover { border-color: var(--ink-mute); }
.k8-crumb span[aria-current] { color: var(--ink); font-weight: 600; }
.k8-page-title { font-size: clamp(1.9rem, 4vw, 2.8rem); font-weight: 900; }
.k8-page-lead { margin-top: .9rem; color: var(--ink-soft); max-width: 44em; }
.k8-result-meta { display: flex; align-items: center; gap: 1rem; justify-content: space-between; flex-wrap: wrap; margin-bottom: 1.4rem; }
.k8-result-meta strong { font-size: 1.2rem; color: var(--gold-deep); }
.k8-empty { text-align: center; padding: 3rem 1rem; background: var(--white); border: 1px dashed var(--line); border-radius: var(--r-lg); }
.k8-empty p { margin-bottom: 1rem; color: var(--ink-soft); }

/* Tabs */
.k8-tabs { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1.6rem; }
.k8-tab { padding: .55rem 1.1rem; border-radius: 999px; border: 1px solid var(--line); background: var(--white); font-weight: 600; font-size: .9rem; color: var(--ink-soft); transition: all .15s; }
.k8-tab:hover { border-color: var(--ink); }
.k8-tab.is-active { background: var(--ink); color: #fff; border-color: var(--ink); }

/* Detail */
.k8-detail-hero { max-width: var(--maxw); margin: 0 auto; padding: clamp(2rem, 5vw, 3.4rem) clamp(1.1rem, 4vw, 2rem) 1rem; }
.k8-detail-hero-grid { display: grid; grid-template-columns: 1.7fr 1fr; gap: 2rem; align-items: start; }
.k8-detail-tags { display: flex; gap: .4rem; flex-wrap: wrap; margin-bottom: 1rem; }
.k8-detail-title { font-size: clamp(1.7rem, 3.6vw, 2.6rem); font-weight: 900; }
.k8-detail-sum { margin: 1rem 0 1.4rem; color: var(--ink-soft); font-size: 1.05rem; }
.k8-keymeta { display: grid; grid-template-columns: repeat(2, 1fr); gap: .8rem; }
.k8-keymeta div { background: var(--white); border: 1px solid var(--line); border-radius: var(--r); padding: .85rem 1rem; }
.k8-keymeta dt { font-size: .72rem; color: var(--ink-mute); }
.k8-keymeta dd { margin: .2rem 0 0; font-weight: 800; font-size: 1.05rem; }
.k8-detail-side { position: sticky; top: 84px; background: var(--ink); color: #fff; border-radius: var(--r-lg); padding: 1.6rem; box-shadow: var(--shadow-l); border-top: 4px solid var(--k8-accent, var(--gold)); }
.k8-side-kick { font-size: .75rem; letter-spacing: .1em; color: var(--gold-soft); margin-bottom: .3rem; }
.k8-detail-side h2 { font-size: 1.25rem; margin-bottom: 1rem; }
.k8-detail-side ul { list-style: none; display: flex; flex-direction: column; gap: .5rem; margin-bottom: 1.3rem; }
.k8-detail-side li { position: relative; padding-left: 1.5rem; font-size: .92rem; color: #d4ddE8; }
.k8-detail-side li::before { content: "✓"; position: absolute; left: 0; color: var(--gold-soft); font-weight: 800; }
.k8-detail-side .k8-btn-ghost { color: #fff; border-color: rgba(255,255,255,.35); margin-top: .6rem; }
.k8-detail-side .k8-btn-ghost:hover { background: rgba(255,255,255,.1); }

.k8-detail-grid { display: grid; grid-template-columns: minmax(0,1fr) 320px; gap: 2.5rem; align-items: start; }
.k8-aside { display: flex; flex-direction: column; gap: 1.4rem; position: sticky; top: 84px; }
.k8-aside-block { background: var(--white); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 1.3rem; }
.k8-aside-block h2 { font-size: 1.02rem; margin-bottom: .9rem; padding-bottom: .6rem; border-bottom: 2px solid var(--gold); display: inline-block; }
.k8-aside-list { list-style: none; display: flex; flex-direction: column; gap: .2rem; }
.k8-aside-list li a { display: flex; flex-direction: column; padding: .6rem 0; border-bottom: 1px solid var(--line-2); }
.k8-aside-list li a:hover strong { color: var(--gold-deep); }
.k8-aside-list small { color: var(--ink-mute); font-size: .76rem; }
.k8-aside-arts { display: flex; flex-direction: column; gap: .8rem; }
.k8-aside-cta { background: linear-gradient(135deg, #0b1220, #233247); color: #fff; }
.k8-aside-cta h2 { border-color: var(--gold-soft); }
.k8-aside-cta p { color: #cdd6e2; font-size: .9rem; margin-bottom: 1rem; }

/* Prose */
.k8-prose { font-size: 1.02rem; color: #26313f; }
.k8-prose h2 { font-size: 1.45rem; font-weight: 800; margin: 2.4rem 0 1rem; padding-left: .8rem; border-left: 5px solid var(--gold); }
.k8-prose h3 { font-size: 1.18rem; font-weight: 700; margin: 1.8rem 0 .8rem; }
.k8-prose p { margin: 0 0 1.1rem; }
.k8-prose ul, .k8-prose ol { margin: 0 0 1.3rem; padding-left: 1.3rem; }
.k8-prose li { margin-bottom: .5rem; }
.k8-prose a { color: var(--tech); border-bottom: 1px solid currentColor; }
.k8-chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.k8-chips span { background: var(--paper-2); padding: .4rem .9rem; border-radius: 999px; font-size: .85rem; }

/* Steps */
.k8-steps { list-style: none; counter-reset: k8step; display: flex; flex-direction: column; gap: .9rem; padding: 0 !important; }
.k8-steps li { background: var(--white); border: 1px solid var(--line); border-radius: var(--r); padding: 1.1rem 1.3rem 1.1rem 1.3rem; }
.k8-step-n { display: inline-block; font-family: var(--en); font-weight: 800; font-size: .76rem; letter-spacing: .08em; color: var(--gold-deep); margin-bottom: .35rem; }
.k8-steps strong { display: block; font-size: 1.05rem; }
.k8-steps p { margin: .4rem 0 0; font-size: .9rem; color: var(--ink-soft); }

/* Table */
.k8-table-wrap { overflow-x: auto; margin: 0 0 1.4rem; border: 1px solid var(--line); border-radius: var(--r); }
.k8-table { width: 100%; border-collapse: collapse; font-size: .92rem; }
.k8-table thead th { background: var(--ink); color: #fff; text-align: left; padding: .85rem 1rem; font-weight: 700; }
.k8-table tbody th, .k8-table td { padding: .8rem 1rem; border-top: 1px solid var(--line-2); text-align: left; vertical-align: top; }
.k8-table tbody th { background: var(--paper-2); font-weight: 700; white-space: nowrap; }

/* Callout */
.k8-callout { border-radius: var(--r); padding: 1.2rem 1.4rem; margin: 1.4rem 0; }
.k8-callout--warn { background: #fdf4e7; border: 1px solid #f0d9a8; }
.k8-callout strong { display: block; color: var(--touch); margin-bottom: .5rem; }
.k8-callout ul { margin: 0; padding-left: 1.2rem; }

/* FAQ */
.k8-faq { display: flex; flex-direction: column; gap: .7rem; margin: 1rem 0 1.5rem; }
.k8-faq-item { background: var(--white); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.k8-faq-item summary { display: flex; gap: .7rem; align-items: flex-start; padding: 1.05rem 1.2rem; font-weight: 700; cursor: pointer; list-style: none; }
.k8-faq-item summary::-webkit-details-marker { display: none; }
.k8-faq-mark { flex: none; width: 24px; height: 24px; display: grid; place-items: center; border-radius: 6px; background: var(--ink); color: #fff; font-family: var(--en); font-weight: 800; font-size: .8rem; }
.k8-faq-mark--a { background: var(--gold); }
.k8-faq-a { display: flex; gap: .7rem; padding: 0 1.2rem 1.2rem; color: var(--ink-soft); }
.k8-faq-a p { margin: 0; }

/* Inline CTA */
.k8-inline-cta { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 1.5rem; margin: 2rem 0; display: flex; flex-direction: column; gap: .8rem; align-items: flex-start; }
.k8-inline-cta p { margin: 0; }

/* Article detail */
.k8-article-hero { max-width: 980px; margin: 0 auto; padding: clamp(2.4rem,5vw,3.6rem) clamp(1.1rem,4vw,2rem) 2rem; color: #fff; border-radius: 0 0 var(--r-xl) var(--r-xl); background: linear-gradient(135deg, var(--ink), var(--ink-2)); }
.k8-article-hero.k8-tone-navy { background: linear-gradient(135deg, #0b1220, #1e3a5f); }
.k8-article-hero.k8-tone-gold { background: linear-gradient(135deg, #4a3713, var(--gold-deep)); }
.k8-article-hero.k8-tone-blue { background: linear-gradient(135deg, #0c3a52, #0e7490); }
.k8-article-hero.k8-tone-green { background: linear-gradient(135deg, #0a4d38, var(--emerald)); }
.k8-article-hero.k8-tone-mixed { background: linear-gradient(135deg, #0e7490, #a9842f); }
.k8-article-hero .k8-crumb { color: rgba(255,255,255,.8); }
.k8-article-hero .k8-crumb a:hover { border-color: rgba(255,255,255,.8); }
.k8-article-hero .k8-crumb span[aria-current] { color: #fff; }
.k8-article-title { font-size: clamp(1.7rem, 4vw, 2.6rem); font-weight: 900; margin: .4rem 0; }
.k8-article-excerpt { color: rgba(255,255,255,.92); font-size: 1.08rem; margin-bottom: 1.2rem; max-width: 42em; }
.k8-article-meta { display: flex; flex-wrap: wrap; gap: .5rem; font-size: .82rem; color: rgba(255,255,255,.8); margin-bottom: 1rem; }
.k8-article-tags { display: flex; flex-wrap: wrap; gap: .4rem; }
.k8-article-tags a { font-size: .78rem; padding: .3rem .8rem; border-radius: 999px; background: rgba(255,255,255,.16); color: #fff; }
.k8-article-tags a:hover { background: rgba(255,255,255,.28); }
.k8-article-grid { max-width: var(--maxw); margin: 2.5rem auto 0; padding: 0 clamp(1.1rem,4vw,2rem); display: grid; grid-template-columns: minmax(0,1fr) 300px; gap: 2.5rem; align-items: start; }
.k8-summary { background: #fbf6ea; border: 1px solid #ecdcb6; border-left: 5px solid var(--gold); border-radius: var(--r); padding: 1.2rem 1.4rem; margin-bottom: 1.8rem; }
.k8-summary-label { display: inline-block; font-weight: 800; color: var(--gold-deep); margin-bottom: .5rem; }
.k8-summary-meta { font-size: .78rem; color: var(--ink-mute); margin-top: .6rem; }
.k8-related { max-width: var(--maxw); margin-inline: auto; }
.k8-related .k8-sec-title { font-size: 1.5rem; margin-bottom: 1.4rem; }

/* Contact */
.k8-contact { display: grid; grid-template-columns: minmax(0,1fr) 320px; gap: 2.5rem; align-items: start; }
.k8-form { background: var(--white); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 1.8rem; box-shadow: var(--shadow-s); }
.k8-field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
.k8-field { display: flex; flex-direction: column; gap: .4rem; }
.k8-field--full { grid-column: 1 / -1; }
.k8-flabel { font-weight: 700; font-size: .88rem; }
.k8-flabel em { color: var(--danger); font-style: normal; font-size: .72rem; margin-left: .3rem; }
.k8-field input, .k8-field select, .k8-field textarea { font-family: var(--sans); font-size: 1rem; padding: .8rem .9rem; border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--paper); color: var(--ink); }
.k8-field input:focus, .k8-field select:focus, .k8-field textarea:focus { outline: none; border-color: var(--gold); box-shadow: 0 0 0 3px rgba(200,160,78,.18); }
.k8-check { flex-direction: row; align-items: center; gap: .6rem; }
.k8-check input { width: 18px; height: 18px; }
.k8-form-actions { margin-top: 1.4rem; }
.k8-form-note { margin-top: 1rem; font-size: .8rem; color: var(--ink-mute); }
.k8-notice { padding: 1rem 1.2rem; border-radius: var(--r); margin-bottom: 1.4rem; }
.k8-notice--ok { background: #e6f6ef; border-left: 4px solid var(--ok); }
.k8-notice--err { background: #fdecea; border-left: 4px solid var(--danger); }
.k8-notice p { margin: .3rem 0 0; font-size: .9rem; }
.k8-contact-side { background: var(--white); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 1.6rem; }
.k8-contact-side h2 { font-size: 1rem; margin: 1.2rem 0 .4rem; }
.k8-contact-side h2:first-child { margin-top: 0; }
.k8-tel { font-size: 1.5rem; font-weight: 800; }
.k8-flow-list { padding-left: 1.2rem; font-size: .9rem; color: var(--ink-soft); }
.k8-flow-list li { margin-bottom: .4rem; }

/* Footer */
.k8-footer { background: var(--ink); color: #cdd6e2; margin-top: auto; }
.k8-footer-inner { max-width: var(--maxw); margin: 0 auto; padding: clamp(2.6rem,5vw,3.6rem) clamp(1.1rem,4vw,2rem) 2rem; display: grid; grid-template-columns: 1.4fr 2fr; gap: 2.5rem; }
.k8-footer .k8-brand-en { color: #8b9bad; }
.k8-footer-brand p { margin-top: 1rem; font-size: .9rem; max-width: 32em; }
.k8-footer .k8-mark { background: #1d2940; }
.k8-footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.k8-footer-cols h2 { font-family: var(--en); font-size: .78rem; letter-spacing: .12em; color: var(--gold-soft); margin-bottom: .9rem; }
.k8-footer-cols a { display: block; padding: .35rem 0; font-size: .9rem; color: #aab8c8; }
.k8-footer-cols a:hover { color: #fff; }
.k8-footer-bottom { max-width: var(--maxw); margin: 0 auto; padding: 1.2rem clamp(1.1rem,4vw,2rem); border-top: 1px solid rgba(255,255,255,.1); display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; font-size: .78rem; color: #8b9bad; }

/* Sticky */
.k8-sticky { position: fixed; left: 50%; bottom: 1rem; transform: translate(-50%, 200%); z-index: 90; display: flex; align-items: center; gap: 1rem; background: var(--white); border: 1px solid var(--line); border-radius: 999px; padding: .5rem .5rem .5rem 1.4rem; box-shadow: var(--shadow-l); transition: transform .35s cubic-bezier(.2,.7,.2,1); font-size: .9rem; max-width: calc(100% - 2rem); }
.k8-sticky.is-visible { transform: translate(-50%, 0); }
.k8-sticky strong { color: var(--gold-deep); }

@media (max-width: 900px) {
  .k8-nav, .k8-header-actions { display: none; }
  .k8-burger { display: flex; }
  .k8-feature, .k8-detail-hero-grid, .k8-detail-grid, .k8-article-grid, .k8-contact, .k8-footer-inner { grid-template-columns: 1fr; }
  .k8-detail-side, .k8-aside { position: static; }
  .k8-keymeta { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 560px) {
  .k8-field-grid { grid-template-columns: 1fr; }
  .k8-footer-cols { grid-template-columns: 1fr 1fr; }
  .k8-art-compact { flex-direction: column; }
  .k8-art-compact .k8-art-thumb { width: 100%; aspect-ratio: 16/9; }
  .k8-keymeta { grid-template-columns: repeat(2, 1fr); }
  .k8-cta-inner { flex-direction: column; align-items: flex-start; }
}

/* =====================================================
   Corporate (k8-co-)
   ===================================================== */
.k8-co-body { background: var(--paper); }
.k8-co-wrap { max-width: var(--maxw); margin: 0 auto; padding-inline: clamp(1.1rem, 4vw, 2rem); }
.k8-co-h2 { font-family: var(--serif); font-size: clamp(1.7rem, 4vw, 2.7rem); font-weight: 700; letter-spacing: .02em; }
.k8-co-h2--light { color: #fff; }
.k8-co-lead { margin-top: 1.1rem; color: var(--ink-soft); font-size: 1.05rem; max-width: 44em; }
.k8-co-lead--light { color: #cdd6e2; }
.k8-co-lead em, .k8-co-h2 em { font-style: normal; color: var(--gold-deep); }
.k8-co-eyebrow { font-family: var(--en); font-weight: 700; font-size: .8rem; letter-spacing: .18em; color: var(--gold-deep); display: inline-flex; align-items: center; gap: .7em; margin-bottom: 1rem; }
.k8-co-eyebrow--c { justify-content: center; width: 100%; }
.k8-co-eyebrow--light { color: var(--gold-soft); justify-content: center; width: 100%; }
.k8-co-eb-line { width: 34px; height: 1px; background: currentColor; opacity: .5; }
.k8-co-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--gold); }
.k8-co-amber { color: var(--gold-soft); }
.k8-co-grad-tech { background: linear-gradient(100deg, var(--tech-bright), #38bdf8); -webkit-background-clip: text; background-clip: text; color: transparent; }
.k8-co-grad-touch { background: linear-gradient(100deg, var(--gold-soft), var(--touch-bright)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.k8-co-btn { display: inline-flex; align-items: center; gap: .5em; font-weight: 700; padding: 1rem 1.7rem; border-radius: 999px; border: 1.5px solid transparent; transition: transform .18s, box-shadow .18s, background .18s; }
.k8-co-btn:hover { transform: translateY(-2px); }
.k8-co-btn-primary { background: var(--gold); color: #fff; box-shadow: 0 8px 22px rgba(200,160,78,.35); }
.k8-co-btn-amber { background: var(--gold-soft); color: var(--ink); box-shadow: 0 8px 22px rgba(231,200,115,.35); }
.k8-co-btn-light { background: #fff; color: var(--ink); }
.k8-co-btn-ghost { border-color: var(--line); color: var(--ink); }
.k8-co-btn-ghost:hover { border-color: var(--ink); }
.k8-co-btn-ghost-light { border-color: rgba(255,255,255,.4); color: #fff; }
.k8-co-btn-ghost-light:hover { background: rgba(255,255,255,.12); }
.k8-co-btn-lg { padding: 1.1rem 2rem; font-size: 1.05rem; }
.k8-co-textlink { display: inline-flex; align-items: center; gap: .4em; font-weight: 700; border-bottom: 2px solid var(--gold); padding-bottom: 2px; }

/* corp header */
.k8-co-header { position: sticky; top: 0; z-index: 100; background: rgba(11,18,32,.85); backdrop-filter: blur(14px); border-bottom: 1px solid rgba(255,255,255,.08); }
.k8-co-header-inner { max-width: var(--maxw); margin: 0 auto; padding: .8rem clamp(1.1rem,4vw,2rem); display: flex; align-items: center; gap: 1.5rem; }
.k8-co-brand { display: inline-flex; align-items: center; gap: .65rem; color: #fff; }
.k8-co-mark { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 11px; background: linear-gradient(135deg, var(--gold), var(--gold-deep)); color: #fff; font-family: var(--serif); font-weight: 700; font-size: 1.3rem; }
.k8-co-brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.k8-co-brand-text b { font-family: var(--en); font-weight: 800; letter-spacing: .04em; }
.k8-co-brand-text small { font-size: .66rem; color: #9fb0c2; }
.k8-co-nav { display: flex; align-items: center; gap: clamp(.6rem,1.8vw,1.6rem); margin-left: auto; }
.k8-co-nav a { color: #cdd6e2; font-weight: 600; font-size: .94rem; }
.k8-co-nav a:hover { color: #fff; }
.k8-co-nav-cta { display: inline-flex; align-items: center; gap: .4em; background: var(--gold); color: #fff !important; padding: .55rem 1.1rem; border-radius: 999px; }
.k8-co-burger { display: none; flex-direction: column; gap: 5px; width: 44px; height: 44px; align-items: center; justify-content: center; background: none; border: 1px solid rgba(255,255,255,.25); border-radius: 10px; cursor: pointer; }
.k8-co-burger span { width: 20px; height: 2px; background: #fff; transition: transform .25s, opacity .2s; }
.k8-co-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.k8-co-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.k8-co-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.k8-co-drawer { display: none; flex-direction: column; padding: 1rem clamp(1.1rem,4vw,2rem) 1.6rem; background: var(--ink-2); }
.k8-co-drawer a { padding: .85rem .2rem; color: #cdd6e2; font-weight: 600; border-bottom: 1px solid rgba(255,255,255,.08); }
.k8-co-drawer.is-open { display: flex; }

/* corp hero */
.k8-co-hero { position: relative; overflow: hidden; background: linear-gradient(160deg, #0b1220, #122033 55%, #1a2c40); color: #fff; text-align: center; }
.k8-co-hero-bg { position: absolute; inset: 0; background:
  radial-gradient(circle at 18% 30%, rgba(8,145,178,.28), transparent 42%),
  radial-gradient(circle at 82% 70%, rgba(200,160,78,.26), transparent 45%); }
.k8-co-hero-bg::after { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px); background-size: 50px 50px; -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000, transparent); mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000, transparent); }
.k8-co-hero-inner { position: relative; max-width: 960px; margin: 0 auto; padding: clamp(4rem,9vw,7rem) clamp(1.1rem,4vw,2rem); }
.k8-co-hero-title { font-family: var(--serif); font-size: clamp(2.2rem, 6vw, 4.2rem); font-weight: 700; line-height: 1.32; letter-spacing: .02em; }
.k8-co-hero-lead { max-width: 40em; margin: 1.6rem auto 2.2rem; color: #cdd6e2; font-size: clamp(1rem,1.6vw,1.18rem); }
.k8-co-hero-actions { display: flex; gap: .9rem; justify-content: center; flex-wrap: wrap; }
.k8-co-hero-stats { display: flex; gap: clamp(1.5rem,5vw,4rem); justify-content: center; margin-top: 3rem; padding-top: 2rem; border-top: 1px solid rgba(255,255,255,.14); }
.k8-co-hero-stats dt { font-family: var(--en); font-size: clamp(1.8rem,4vw,2.8rem); font-weight: 800; color: var(--gold-soft); line-height: 1; }
.k8-co-hero-stats dt span { font-size: .5em; }
.k8-co-hero-stats dd { margin-top: .4rem; font-size: .82rem; color: #9fb0c2; }

/* concept */
.k8-co-concept { padding: clamp(3.5rem,7vw,6rem) 0; text-align: center; }
.k8-co-fusion { display: flex; align-items: stretch; justify-content: center; gap: 1.2rem; margin: 2.8rem 0; flex-wrap: wrap; }
.k8-co-fcard { flex: 1 1 320px; max-width: 420px; text-align: left; background: var(--white); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 1.8rem; box-shadow: var(--shadow-m); border-top: 5px solid; }
.k8-co-fcard--tech { border-top-color: var(--tech-bright); }
.k8-co-fcard--touch { border-top-color: var(--gold); }
.k8-co-fcard-en { font-family: var(--en); font-weight: 800; letter-spacing: .1em; font-size: .82rem; color: var(--ink-mute); }
.k8-co-fcard strong { display: block; font-size: 1.3rem; margin: .3rem 0 1rem; }
.k8-co-fcard ul { list-style: none; display: flex; flex-direction: column; gap: .6rem; }
.k8-co-fcard li { position: relative; padding-left: 1.6rem; color: var(--ink-soft); }
.k8-co-fcard li::before { content: ""; position: absolute; left: 0; top: .55em; width: 8px; height: 8px; border-radius: 50%; }
.k8-co-fcard--tech li::before { background: var(--tech-bright); }
.k8-co-fcard--touch li::before { background: var(--gold); }
.k8-co-fx { display: grid; place-items: center; font-family: var(--en); font-size: 2.6rem; font-weight: 300; color: var(--ink-mute); }
.k8-co-outcomes { list-style: none; display: flex; gap: 1.2rem; justify-content: center; flex-wrap: wrap; max-width: 900px; margin: 0 auto; }
.k8-co-outcomes li { flex: 1 1 240px; display: flex; align-items: center; gap: .8rem; text-align: left; background: var(--paper-2); border-radius: var(--r); padding: 1.1rem 1.3rem; font-weight: 600; }
.k8-co-outcomes span { font-family: var(--en); font-weight: 800; font-size: 1.3rem; color: var(--gold-deep); }

/* solutions */
.k8-co-solutions { padding: clamp(3.5rem,7vw,6rem) 0; background: var(--paper-2); text-align: center; }
.k8-co-sol-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.3rem; margin-top: 2.6rem; text-align: left; }
.k8-co-sol { position: relative; background: var(--white); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 1.8rem; box-shadow: var(--shadow-s); transition: transform .2s, box-shadow .2s; overflow: hidden; border-top: 4px solid var(--gold); }
.k8-co-sol--tech { border-top-color: var(--tech-bright); }
.k8-co-sol--touch { border-top-color: var(--gold); }
.k8-co-sol--gov { border-top-color: var(--emerald); }
.k8-co-sol:hover { transform: translateY(-5px); box-shadow: var(--shadow-l); }
.k8-co-sol-num { font-family: var(--en); font-weight: 800; font-size: 2.4rem; color: var(--line); line-height: 1; }
.k8-co-sol-title { font-size: 1.2rem; font-weight: 800; margin: .5rem 0 .7rem; }
.k8-co-sol-desc { color: var(--ink-soft); font-size: .92rem; }
.k8-co-sol-metric { margin-top: 1.2rem; display: flex; align-items: baseline; gap: .5rem; }
.k8-co-sol-metric strong { font-family: var(--en); font-size: 1.5rem; color: var(--gold-deep); }
.k8-co-sol-metric span { font-size: .8rem; color: var(--ink-mute); }
.k8-co-sol--tech .k8-co-sol-metric strong { color: var(--tech); }
.k8-co-sol--gov .k8-co-sol-metric strong { color: var(--emerald); }
.k8-co-sol-arr { position: absolute; right: 1.5rem; bottom: 1.5rem; color: var(--ink-mute); font-weight: 700; transition: transform .2s; }
.k8-co-sol:hover .k8-co-sol-arr { transform: translateX(4px); color: var(--ink); }

/* cross-sell */
.k8-co-cross { background: linear-gradient(135deg, #0b1220, #16202f 60%, #233247); color: #fff; padding: clamp(3.5rem,7vw,6rem) 0; }
.k8-co-cross-inner { display: grid; grid-template-columns: 1.3fr 1fr; gap: 2.5rem; align-items: center; }
.k8-co-cross .k8-co-eyebrow { color: var(--gold-soft); }
.k8-co-cross-orbit { position: relative; aspect-ratio: 1; max-width: 320px; margin: 0 auto; display: grid; place-items: center; }
.k8-co-orbit-ring { position: absolute; inset: 12%; border: 1px solid rgba(255,255,255,.18); border-radius: 50%; }
.k8-co-orbit-ring-2 { inset: 28%; border-style: dashed; animation: k8spin 30s linear infinite; }
@keyframes k8spin { to { transform: rotate(360deg); } }
.k8-co-orbit-orb { position: absolute; width: 84px; height: 84px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; box-shadow: var(--shadow-l); }
.k8-co-orbit-tech { background: linear-gradient(135deg, #0891b2, #06b6d4); top: 6%; left: 10%; }
.k8-co-orbit-touch { background: linear-gradient(135deg, var(--gold), var(--gold-deep)); bottom: 6%; right: 10%; }
.k8-co-orbit-x { font-family: var(--en); font-size: 2.4rem; font-weight: 300; }

/* cases */
.k8-co-cases, .k8-co-news { padding: clamp(3.5rem,7vw,6rem) 0; }
.k8-co-cases-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; margin-bottom: 2.2rem; }
.k8-co-case-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.4rem; }
.k8-co-case { background: var(--white); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--shadow-s); transition: transform .2s, box-shadow .2s; }
.k8-co-case:hover { transform: translateY(-5px); box-shadow: var(--shadow-l); }
.k8-co-case-visual { aspect-ratio: 16/9; display: grid; place-items: center; position: relative; }
.k8-co-case--1 .k8-co-case-visual { background: linear-gradient(135deg, #0f172a, #0891b2); }
.k8-co-case--2 .k8-co-case-visual { background: linear-gradient(135deg, #1e293b, #22d3ee); }
.k8-co-case--3 .k8-co-case-visual { background: linear-gradient(135deg, #064e3b, #047857); }
.k8-co-case-amount { font-family: var(--en); font-weight: 800; font-size: 2rem; color: #fff; }
.k8-co-case-amount small { font-size: .5em; }
.k8-co-case-amount--np { font-size: 1.1rem; }
.k8-co-case-body { padding: 1.3rem 1.5rem 1.5rem; }
.k8-co-case-tag { font-size: .76rem; color: var(--ink-mute); font-weight: 600; }
.k8-co-case-body h3 { font-size: 1.1rem; margin: .5rem 0 1rem; }
.k8-co-case-sub { display: inline-flex; align-items: center; gap: .4em; font-size: .82rem; font-weight: 700; color: var(--gold-deep); }

/* news */
.k8-co-news { background: var(--paper-2); }
.k8-co-news-list { list-style: none; }
.k8-co-news-list li a { display: flex; align-items: center; gap: 1.2rem; padding: 1.1rem .4rem; border-bottom: 1px solid var(--line); }
.k8-co-news-list li a:hover { background: rgba(0,0,0,.02); }
.k8-co-news-list time { font-family: var(--en); font-size: .85rem; color: var(--ink-mute); flex: none; width: 92px; }
.k8-co-news-tag { font-size: .72rem; font-weight: 700; padding: .25rem .7rem; border-radius: 999px; background: var(--ink); color: #fff; flex: none; }
.k8-co-news-title { flex: 1; font-weight: 600; }

/* contact */
.k8-co-contact { padding: clamp(3.5rem,7vw,6rem) clamp(1.1rem,4vw,2rem); }
.k8-co-contact-card { max-width: 880px; margin: 0 auto; text-align: center; background: linear-gradient(135deg, #0b1220, #16202f 55%, #233247); color: #fff; border-radius: var(--r-xl); padding: clamp(2.6rem,5vw,4rem); box-shadow: var(--shadow-l); }
.k8-co-contact-actions { display: flex; gap: 1.2rem; justify-content: center; flex-wrap: wrap; margin: 2rem 0 1.2rem; }
.k8-co-tel { display: flex; flex-direction: column; align-items: center; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16); border-radius: var(--r); padding: .9rem 1.6rem; }
.k8-co-tel span { font-size: .72rem; color: var(--gold-soft); }
.k8-co-tel strong { font-family: var(--en); font-size: 1.5rem; }
.k8-co-tel small { font-size: .72rem; color: #9fb0c2; }
.k8-co-contact-bullets { color: #9fb0c2; font-size: .85rem; }

/* corp footer */
.k8-co-footer { background: #07101e; color: #aab8c8; }
.k8-co-footer-top { display: grid; grid-template-columns: 1.4fr 2fr; gap: 2.5rem; padding-block: clamp(2.6rem,5vw,3.6rem) 2rem; }
.k8-co-footer-brand .k8-co-brand { color: #fff; }
.k8-co-footer-brand p { margin: 1rem 0; font-size: .9rem; max-width: 30em; }
.k8-co-footer-info { display: flex; flex-direction: column; gap: .4rem; font-size: .84rem; }
.k8-co-footer-info div { display: flex; gap: .8rem; }
.k8-co-footer-info dt { color: var(--gold-soft); width: 56px; flex: none; }
.k8-co-footer-info dd { margin: 0; }
.k8-co-footer-cols { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.5rem; }
.k8-co-footer-cols h2 { font-family: var(--en); font-size: .78rem; letter-spacing: .1em; color: var(--gold-soft); margin-bottom: .9rem; }
.k8-co-footer-cols a { display: block; padding: .32rem 0; font-size: .88rem; color: #aab8c8; }
.k8-co-footer-cols a:hover { color: #fff; }
.k8-co-footer-bottom { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding: 1.2rem 0; border-top: 1px solid rgba(255,255,255,.08); font-size: .78rem; color: #6b7888; }

@media (max-width: 900px) {
  .k8-co-nav { display: none; }
  .k8-co-burger { display: flex; }
  .k8-co-cross-inner, .k8-co-footer-top { grid-template-columns: 1fr; }
  .k8-co-fx { transform: rotate(90deg); }
}

/* =====================================================
   Portal (k8-pt-) - レビュー用ポータル（整理版）
   ===================================================== */
.k8-pt-body { background: #0b1220; color: #e7eef6; }
.k8-pt-root { max-width: 1040px; margin: 0 auto; padding: clamp(1.5rem,4vw,3rem) clamp(1.1rem,4vw,2rem) 4rem; }
.k8-pt-eyebrow { font-family: var(--en); font-weight: 700; letter-spacing: .18em; font-size: .76rem; color: var(--gold-soft); }
.k8-pt-hero, .k8-pt-phead { padding-bottom: 1.4rem; border-bottom: 1px solid rgba(255,255,255,.1); margin-bottom: 2rem; }
.k8-pt-hero h1, .k8-pt-phead h1 { font-family: var(--serif); font-size: clamp(1.7rem,4vw,2.6rem); font-weight: 700; margin: .6rem 0; }
.k8-pt-lead { color: #aeb9c7; max-width: 52em; }
.k8-pt-lead strong { color: #fff; }
.k8-pt-meta { margin-top: .9rem; font-size: .85rem; color: #8b9bad; }
.k8-pt-meta a { color: var(--gold-soft); border-bottom: 1px solid transparent; }
.k8-pt-meta a:hover { border-color: var(--gold-soft); }
.k8-pt-actions { display: flex; gap: .8rem; flex-wrap: wrap; margin-top: 1.5rem; }
.k8-pt-btn { display: inline-flex; align-items: center; gap: .4em; padding: .8rem 1.4rem; border-radius: 999px; border: 1px solid rgba(255,255,255,.2); color: #e7eef6; font-weight: 700; font-size: .92rem; }
.k8-pt-btn:hover { background: rgba(255,255,255,.08); }
.k8-pt-btn-primary { background: var(--gold); border-color: var(--gold); color: #fff; }
.k8-pt-btn-primary:hover { background: var(--gold-deep); }
.k8-pt-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; margin-top: 2.5rem; }
.k8-pt-cards article { background: #131d2e; border: 1px solid rgba(255,255,255,.1); border-radius: var(--r-lg); padding: 1.8rem; }
.k8-pt-cards span { font-family: var(--en); font-weight: 800; color: var(--gold-soft); }
.k8-pt-cards h2 { font-size: 1.2rem; margin: .4rem 0 .7rem; }
.k8-pt-cards p { color: #aeb9c7; font-size: .92rem; margin-bottom: 1rem; }
.k8-pt-cards article a { display: inline-flex; align-items: center; gap: .4em; color: var(--gold-soft); font-weight: 700; }

/* main layout */
.k8-pt-main { display: flex; flex-direction: column; gap: 1.8rem; }
.k8-pt-h2 { display: flex; align-items: center; gap: .6rem; font-size: 1.18rem; margin-bottom: .35rem; }
.k8-pt-step { width: 26px; height: 26px; flex: none; display: grid; place-items: center; border-radius: 8px; background: var(--gold); color: #0b1220; font-family: var(--en); font-weight: 800; font-size: .9rem; }
.k8-pt-sub { color: #aeb9c7; font-size: .9rem; margin-bottom: 1.1rem; }
.k8-pt-sub b, .k8-pt-sub strong { color: #fff; }
.k8-pt-note { margin-top: 1rem; font-size: .78rem; color: #7e8b9c; }

/* 1. quick presets */
.k8-pt-quick { background: #131d2e; border: 1px solid rgba(255,255,255,.1); border-radius: var(--r-lg); padding: 1.6rem; }
.k8-pt-presets { display: grid; grid-template-columns: 1fr 1fr; gap: .9rem; }
.k8-pt-preset { display: flex; flex-direction: column; gap: .35rem; text-align: left; background: #0b1220; border: 1px solid rgba(255,255,255,.14); border-radius: var(--r); padding: 1rem 1.1rem; cursor: pointer; transition: border-color .15s, background .15s; font-family: var(--sans); color: #e7eef6; }
.k8-pt-preset:hover { border-color: var(--gold); background: #0e1626; }
.k8-pt-preset-name { font-weight: 700; font-size: 1rem; }
.k8-pt-preset-paths { font-family: var(--en); font-size: .7rem; color: #8b9bad; }
.k8-pt-preset-paths code { background: rgba(255,255,255,.06); padding: .05rem .35rem; border-radius: 4px; }
.k8-pt-preset-go { font-size: .8rem; font-weight: 700; color: var(--gold-soft); }

/* 2. versions 2-col */
.k8-pt-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.k8-pt-col { background: #131d2e; border: 1px solid rgba(255,255,255,.1); border-radius: var(--r-lg); padding: 1.3rem; }
.k8-pt-col--new { border-top: 3px solid var(--gold-soft); }
.k8-pt-col--old { border-top: 3px solid #5a6b7e; }
.k8-pt-col-head { display: flex; align-items: center; gap: .6rem; margin-bottom: .9rem; font-size: .85rem; color: #aeb9c7; }
.k8-pt-badge { font-family: var(--en); font-weight: 800; font-size: .78rem; padding: .2rem .6rem; border-radius: 6px; }
.k8-pt-badge--new { background: var(--gold); color: #0b1220; }
.k8-pt-badge--old { background: #2a3650; color: #cdd6e2; }
.k8-pt-links { list-style: none; }
.k8-pt-links a { display: flex; align-items: center; gap: .55rem; padding: .5rem .5rem; border-radius: 8px; color: #e7eef6; }
.k8-pt-links a:hover { background: rgba(255,255,255,.06); }
.k8-pt-rl { font-weight: 600; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.k8-pt-links code { font-family: var(--en); font-size: .7rem; color: #8b9bad; flex: none; }
.k8-pt-go { color: var(--gold-soft); }
.k8-pt-grp > details > summary { display: flex; align-items: center; gap: .4rem; padding: .5rem .5rem; border-radius: 8px; cursor: pointer; list-style: none; font-weight: 600; color: #aeb9c7; }
.k8-pt-grp > details > summary:hover { background: rgba(255,255,255,.06); }
.k8-pt-grp > details > summary::-webkit-details-marker { display: none; }
.k8-pt-grp > details > summary::before { content: "\25B8"; display: inline-block; color: var(--gold-soft); transition: transform .15s; }
.k8-pt-grp > details[open] > summary::before { transform: rotate(90deg); }
.k8-pt-grp ul { list-style: none; padding-left: .9rem; border-left: 1px solid rgba(255,255,255,.1); margin: .1rem 0 .5rem .7rem; }
.k8-pt-grp ul code { display: none; }

/* 3. advanced (folded) */
.k8-pt-adv { background: #131d2e; border: 1px solid rgba(255,255,255,.1); border-radius: var(--r-lg); padding: 0 1.6rem; }
.k8-pt-adv > summary { display: flex; align-items: center; gap: .6rem; padding: 1.2rem 0; font-weight: 700; cursor: pointer; list-style: none; }
.k8-pt-adv > summary::-webkit-details-marker { display: none; }
.k8-pt-adv-body { padding-bottom: 1.5rem; display: flex; flex-direction: column; gap: 1rem; }
.k8-pt-toolbar { display: flex; align-items: center; gap: .4rem; flex-wrap: wrap; font-size: .82rem; color: #8b9bad; }
.k8-pt-wbtn { padding: .45rem .9rem; border-radius: 8px; border: 1px solid rgba(255,255,255,.2); background: transparent; color: #e7eef6; font-size: .82rem; font-weight: 600; cursor: pointer; font-family: var(--sans); }
.k8-pt-wbtn:hover { background: rgba(255,255,255,.1); }
.k8-pt-wbtn.is-active { background: var(--gold); border-color: var(--gold); color: #fff; }
.k8-pt-pickers { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.k8-pt-pick { display: flex; align-items: center; gap: .6rem; background: #0b1220; border: 1px solid rgba(255,255,255,.12); border-radius: var(--r); padding: .6rem .7rem; }
.k8-pt-tag { width: 30px; height: 30px; flex: none; display: grid; place-items: center; border-radius: 8px; background: var(--tech-bright); color: #04222b; font-weight: 800; }
.k8-pt-tag--b { background: var(--gold-soft); color: #3a2c08; }
.k8-pt-select { flex: 1; min-width: 0; background: #131d2e; color: #e7eef6; border: 1px solid rgba(255,255,255,.16); border-radius: 8px; padding: .55rem .6rem; font-family: var(--sans); font-size: .82rem; }
.k8-pt-openboth { padding: .8rem; border-radius: var(--r); border: none; background: var(--gold); color: #fff; font-weight: 800; font-size: .92rem; cursor: pointer; font-family: var(--sans); }
.k8-pt-openboth:hover { background: var(--gold-deep); }

/* 4. utils */
.k8-pt-chips { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: .3rem; }
.k8-pt-chip { padding: .45rem .9rem; border-radius: 999px; border: 1px solid rgba(255,255,255,.18); font-size: .84rem; color: #cdd6e2; }
.k8-pt-chip:hover { background: rgba(255,255,255,.08); border-color: var(--gold-soft); }

.k8-pt-foot { text-align: center; margin-top: 2.5rem; color: #6b7888; font-size: .8rem; }

@media (max-width: 720px) {
  .k8-pt-cards, .k8-pt-presets, .k8-pt-cols, .k8-pt-pickers { grid-template-columns: 1fr; }
  .k8-pt-links code { display: none; }
}