/* ============================================================================
   博庚创投 · Bogeng Capital — site design system
   Palette sampled from 博庚logo透明底.png: crimson #dd072e → orange #f96222 → amber #faac40
   Dark cinematic base · one signal accent · 思源黑体 display over 思源黑体 body

   Typefaces — all SIL Open Font License 1.1 (open source, free for commercial
   use and redistribution). Hosted locally, subset to the glyphs this site uses;
   full license texts beside the files in assets/fonts/.
     · 思源黑体 Noto Sans SC — display / headings / body / UI
     · JetBrains Mono        — numerals, eyebrows, meta
   ========================================================================= */

/* ─── webfonts (OFL 1.1, self-hosted) ─────────────────────────────────────── */
@font-face {
  font-family: 'Noto Sans SC';
  src: url('fonts/NotoSansSC-var.woff2') format('woff2');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('fonts/JetBrainsMono-var.woff2') format('woff2');
  font-weight: 100 800;
  font-style: normal;
  font-display: swap;
}

/* ─── tokens ──────────────────────────────────────────────────────────────── */
:root {
  /* dark cinematic ground — warm-tinted, never pure black */
  --bg:        oklch(0.150 0.010 48);
  --bg-deep:   oklch(0.115 0.010 48);
  --surface:   oklch(0.192 0.012 48);
  --surface-2: oklch(0.238 0.014 46);
  --raised:    oklch(0.216 0.013 47);

  --fg:     oklch(0.965 0.008 75);
  --muted:  oklch(0.715 0.016 58);
  --border: oklch(0.300 0.016 48);

  /* the single accent, plus the logo's amber as a rare second tone */
  --accent:     oklch(0.668 0.212 40);
  --accent-2:   oklch(0.795 0.150 68);
  --accent-ink: oklch(0.520 0.196 33);
  --on-accent:  oklch(0.170 0.014 45);

  /* logo gradient — the brand's one signature flourish */
  --brand-grad: linear-gradient(100deg,
      oklch(0.568 0.227 23) 0%,
      oklch(0.668 0.212 40) 48%,
      oklch(0.802 0.149 71) 100%);

  --accent-soft: color-mix(in oklab, var(--accent) 15%, transparent);
  --fg-soft:     color-mix(in oklab, var(--fg) 6%, transparent);
  --hair:        color-mix(in oklab, var(--fg) 13%, transparent);
  --scrim:       oklch(0.115 0.010 48 / 0.72);

  /* type — 思源黑体 display · 黑体 body · mono numerics */
  --font-display: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC',
                  'Hiragino Sans GB', 'Microsoft YaHei', system-ui, sans-serif;
  --font-body:    'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC',
                  'Hiragino Sans GB', 'Microsoft YaHei', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

  --fs-h1:   clamp(40px, 5.6vw, 78px);
  --fs-h2:   clamp(28px, 3.3vw, 46px);
  --fs-h3:   clamp(19px, 1.5vw, 23px);
  --fs-lead: clamp(16px, 1.2vw, 19px);
  --fs-body: 16px;
  --fs-meta: 13px;

  --gap-xs: 8px;  --gap-sm: 12px; --gap-md: 20px;
  --gap-lg: 32px; --gap-xl: 56px; --gap-2xl: 96px;
  --sec:       clamp(64px, 8.5vw, 132px);
  --container: 1200px;
  --gutter:    clamp(20px, 4vw, 40px);

  --radius-sm: 8px;
  --radius:    12px;
  --radius-lg: 18px;
  --radius-xl: 26px;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* paper inversion — used for the portfolio wall and one editorial band */
.section-paper {
  --bg:        oklch(0.968 0.005 78);
  --bg-deep:   oklch(0.938 0.006 74);
  --surface:   oklch(0.995 0.002 80);
  --surface-2: oklch(0.945 0.006 74);
  --raised:    oklch(0.995 0.002 80);
  --fg:        oklch(0.200 0.014 45);
  --muted:     oklch(0.470 0.014 52);
  --border:    oklch(0.868 0.008 62);
  --hair:      oklch(0.200 0.014 45 / 0.14);
  --fg-soft:   oklch(0.200 0.014 45 / 0.05);
  --accent:    oklch(0.515 0.204 35);
  --accent-2:  oklch(0.500 0.150 58);
  --accent-soft: color-mix(in oklab, var(--accent) 12%, transparent);
  background: var(--bg);
  color: var(--fg);
}

/* ─── reset ───────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg-deep);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.62;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  /* 思源黑体 is a variable face — synthetic bold would look wrong */
  font-synthesis: none;
  overflow-x: hidden;
}
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: 0; }
p { text-wrap: pretty; }
h1, h2, h3, h4 { text-wrap: balance; }
::selection { background: var(--accent); color: var(--on-accent); }
[hidden] { display: none !important; }

/* ─── layout primitives ───────────────────────────────────────────────────── */
.wrap {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { padding-block: var(--sec); position: relative; }
.section-tight { padding-block: clamp(48px, 5.5vw, 84px); }
.rule-top { border-top: 1px solid var(--border); }

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--gap-lg); }
.split  { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); gap: clamp(32px, 6vw, 88px); align-items: center; }
.split-wide { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 88px); align-items: start; }
.stack > * + * { margin-top: var(--gap-md); }

/* ─── type ────────────────────────────────────────────────────────────────── */
.h1, h1 {
  font-family: var(--font-display); font-weight: 600;
  font-size: var(--fs-h1); line-height: 1.14; letter-spacing: -0.012em; margin: 0;
}
.h2, h2 {
  font-family: var(--font-display); font-weight: 600;
  font-size: var(--fs-h2); line-height: 1.16; letter-spacing: -0.01em; margin: 0;
}
.h3, h3 {
  font-size: var(--fs-h3); font-weight: 600; line-height: 1.45;
  letter-spacing: -0.006em; margin: 0;
}
.h4 { font-size: 17px; font-weight: 600; margin: 0; line-height: 1.45; }
.lead { font-size: var(--fs-lead); line-height: 1.72; color: var(--muted); max-width: 62ch; margin: 0; }
.body-lg { font-size: 17px; line-height: 1.8; color: var(--muted); }
.meta { font-family: var(--font-mono); font-size: var(--fs-meta); color: var(--muted); letter-spacing: 0.01em; }
.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
.eyebrow {
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--accent); margin: 0 0 var(--gap-md);
  display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow::before {
  content: ''; width: 22px; height: 1px; background: currentColor; opacity: 0.7; flex: none;
}
.eyebrow-plain { color: var(--muted); }
.eyebrow-plain::before { display: none; }
.section-title-row {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: var(--gap-lg); flex-wrap: wrap; margin-bottom: var(--gap-xl);
}

/* ─── nav ─────────────────────────────────────────────────────────────────── */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 60;
  background: var(--scrim);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  backdrop-filter: blur(16px) saturate(1.4);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.nav.is-stuck { border-bottom-color: var(--border); background: oklch(0.130 0.010 48 / 0.86); }
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--gap-md); min-height: 68px;
}
.brand { display: flex; align-items: center; gap: 12px; flex: none; }
.brand img { width: 138px; height: auto; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  position: relative; padding: 9px 14px; border-radius: 999px;
  font-size: 14.5px; color: var(--muted); transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.nav-links a:hover { color: var(--fg); background: var(--fg-soft); }
.nav-links a[aria-current='page'] { color: var(--fg); }
.nav-links a[aria-current='page']::after {
  content: ''; position: absolute; left: 50%; bottom: 2px; translate: -50% 0;
  width: 16px; height: 2px; border-radius: 2px; background: var(--accent);
}
.nav-actions { display: flex; align-items: center; gap: var(--gap-sm); flex: none; }
.nav-toggle {
  display: none; width: 44px; height: 44px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); place-items: center;
}
.nav-toggle span { display: block; width: 18px; height: 1.5px; background: var(--fg); position: relative; }
.nav-toggle span::before, .nav-toggle span::after {
  content: ''; position: absolute; left: 0; width: 18px; height: 1.5px; background: var(--fg);
  transition: transform 0.28s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav.is-open .nav-toggle span { background: transparent; }
.nav.is-open .nav-toggle span::before { transform: translateY(6px) rotate(45deg); }
.nav.is-open .nav-toggle span::after { transform: translateY(-6px) rotate(-45deg); }

/* ─── buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  min-height: 46px; padding: 11px 22px;
  border-radius: 999px; border: 1px solid transparent;
  font-size: 15px; font-weight: 500; letter-spacing: 0.01em;
  transition: background 0.22s var(--ease), border-color 0.22s var(--ease),
              color 0.22s var(--ease), transform 0.12s var(--ease), box-shadow 0.28s var(--ease);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--accent); color: var(--on-accent); border-color: var(--accent);
  box-shadow: 0 8px 26px -12px color-mix(in oklab, var(--accent) 70%, transparent);
}
.btn-primary:hover {
  background: color-mix(in oklab, var(--accent) 86%, var(--fg));
  border-color: color-mix(in oklab, var(--accent) 86%, var(--fg));
  color: var(--on-accent);
  box-shadow: 0 12px 34px -12px color-mix(in oklab, var(--accent) 82%, transparent);
}
.btn-outline {
  background: color-mix(in oklab, var(--bg-deep) 62%, transparent);
  color: var(--fg);
  border-color: color-mix(in oklab, var(--fg) 52%, transparent);
  -webkit-backdrop-filter: blur(10px) saturate(1.4);
  backdrop-filter: blur(10px) saturate(1.4);
}
.btn-outline:hover {
  background: color-mix(in oklab, var(--bg-deep) 80%, transparent);
  border-color: color-mix(in oklab, var(--fg) 78%, transparent);
  color: var(--fg);
}
.btn-quiet { background: transparent; color: var(--muted); border-color: transparent; padding-inline: 12px; }
.btn-quiet:hover { color: var(--accent-2); background: transparent; }
.btn-sm { min-height: 44px; padding: 8px 16px; font-size: 14px; }
.btn-arrow::after {
  content: ''; width: 15px; height: 15px; flex: none;
  background: currentColor;
  clip-path: polygon(48% 12%, 88% 50%, 48% 88%, 43% 83%, 74% 55%, 12% 55%, 12% 45%, 74% 45%, 43% 17%);
  transition: transform 0.26s var(--ease);
}
.btn-arrow:hover::after { transform: translateX(4px); }
.btn-block { width: 100%; }
.link-arrow {
  display: inline-flex; align-items: center; gap: 8px; font-size: 14.5px; color: var(--muted);
  transition: color 0.2s var(--ease);
}
.link-arrow::after {
  content: ''; width: 14px; height: 14px; background: currentColor;
  clip-path: polygon(48% 12%, 88% 50%, 48% 88%, 43% 83%, 74% 55%, 12% 55%, 12% 45%, 74% 45%, 43% 17%);
  transition: transform 0.26s var(--ease);
}
.link-arrow:hover { color: var(--accent-2); }
.link-arrow:hover::after { transform: translateX(4px); }

/* ─── hero ────────────────────────────────────────────────────────────────── */
.hero {
  position: relative; overflow: hidden;
  min-height: min(94svh, 900px);
  display: grid; align-content: center;
  padding-block: clamp(148px, 18vh, 200px) clamp(64px, 9vh, 104px);
  background: var(--bg-deep);
  border-bottom: 1px solid var(--border);
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: 70% 44%;
  filter: saturate(1.1) contrast(1.06) brightness(1.05);
}
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(50% 58% at 84% 18%, color-mix(in oklab, var(--accent) 28%, transparent), transparent 70%),
    linear-gradient(94deg,
      var(--bg-deep) 0%,
      color-mix(in oklab, var(--bg-deep) 94%, transparent) 20%,
      color-mix(in oklab, var(--bg-deep) 56%, transparent) 40%,
      color-mix(in oklab, var(--bg-deep) 16%, transparent) 58%,
      transparent 72%),
    linear-gradient(180deg,
      color-mix(in oklab, var(--bg-deep) 46%, transparent) 0%,
      color-mix(in oklab, var(--bg-deep) 10%, transparent) 24%,
      transparent 46%,
      color-mix(in oklab, var(--bg-deep) 22%, transparent) 70%,
      var(--bg-deep) 100%);
}
.hero-grain {
  position: absolute; inset: 0; z-index: 1; pointer-events: none; opacity: 0.28;
  background-image: radial-gradient(oklch(1 0 0 / 0.16) 0.5px, transparent 0.6px);
  background-size: 3px 3px;
  mix-blend-mode: overlay;
}
.hero .wrap { position: relative; z-index: 2; }
/* the block is NOT width-capped — measure lives on each text element */
.hero-inner { max-width: none; }
.hero h1 { max-width: 13em; margin-bottom: 0; }
.hero-foot {
  margin-top: clamp(30px, 4.5vh, 54px);
  padding-top: clamp(22px, 3vh, 34px);
  border-top: 1px solid color-mix(in oklab, var(--fg) 20%, transparent);
  display: grid; grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(24px, 4vw, 64px); align-items: end;
}
.hero .lead { max-width: 48ch; margin: 0; }
.hero-cta { display: flex; flex-wrap: wrap; gap: var(--gap-sm); align-items: center; justify-content: flex-end; }
.hero-scroll {
  position: absolute; left: 50%; bottom: 26px; translate: -50% 0; z-index: 2;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.2em; color: var(--muted);
}
.hero-scroll i {
  display: block; width: 1px; height: 42px;
  background: linear-gradient(180deg, var(--muted), transparent);
  position: relative; overflow: hidden;
}
.hero-scroll i::after {
  content: ''; position: absolute; inset: 0 0 auto 0; height: 14px;
  background: var(--accent); animation: scrollHint 2.4s var(--ease) infinite;
}
@keyframes scrollHint {
  0%   { transform: translateY(-14px); opacity: 0; }
  40%  { opacity: 1; }
  100% { transform: translateY(42px); opacity: 0; }
}
.hero-page {
  min-height: 0; display: block;
  padding-block: clamp(132px, 16vh, 186px) clamp(56px, 7vw, 92px);
  background: var(--bg);
}
.hero-page .hero-bg img { object-position: 64% 40%; filter: saturate(1.08) contrast(1.05) brightness(1.02); }
.hero-page .hero-bg::after {
  background:
    radial-gradient(44% 82% at 90% 6%, color-mix(in oklab, var(--accent) 22%, transparent), transparent 72%),
    linear-gradient(94deg,
      var(--bg-deep) 0%,
      color-mix(in oklab, var(--bg-deep) 95%, transparent) 26%,
      color-mix(in oklab, var(--bg-deep) 58%, transparent) 47%,
      color-mix(in oklab, var(--bg-deep) 20%, transparent) 67%,
      transparent 84%),
    linear-gradient(180deg,
      color-mix(in oklab, var(--bg-deep) 54%, transparent) 0%,
      transparent 38%,
      color-mix(in oklab, var(--bg) 55%, transparent) 74%,
      var(--bg) 100%);
}
.hero-page .hero-inner { max-width: none; }
.hero-page h1 {
  font-size: clamp(34px, 4.6vw, 62px);
  max-width: 11em; margin-bottom: var(--gap-md);
}
.hero-page .lead { max-width: 46ch; margin: 0; }

/* ─── stat strip ──────────────────────────────────────────────────────────── */
.stat-strip {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--border);
}
.stat-strip .stat { padding: var(--gap-lg) var(--gap-lg) var(--gap-md) 0; }
.stat-strip .stat + .stat { padding-left: var(--gap-lg); border-left: 1px solid var(--border); }
.stat-num {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(34px, 3.6vw, 52px); line-height: 1;
  letter-spacing: -0.035em; color: var(--fg);
  display: flex; align-items: baseline; gap: 4px;
}
.stat-num .unit {
  font-family: var(--font-mono); font-size: 0.42em; letter-spacing: 0.02em;
  color: var(--accent-2); font-weight: 500;
}
.stat-label { margin: 10px 0 0; font-size: 13.5px; line-height: 1.6; color: var(--muted); max-width: 22ch; }

/* ─── media wall (marquee) ────────────────────────────────────────────────── */
.marquee { position: relative; overflow: hidden; padding-block: clamp(20px, 3.5vw, 40px); }
.marquee-rows { display: grid; gap: clamp(14px, 2.2vw, 28px); }
.marquee-row { display: flex; }
.marquee-track { display: flex; gap: var(--gap-md); width: max-content; animation: marquee 72s linear infinite; }
.marquee-row.is-reverse .marquee-track { animation-direction: reverse; animation-duration: 86s; }
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* edges: blur the passing media and darken it, fading toward the centre */
.marquee::before, .marquee::after {
  content: ''; position: absolute; top: 0; bottom: 0; width: clamp(70px, 13vw, 240px); z-index: 2; pointer-events: none;
  -webkit-backdrop-filter: blur(7px); backdrop-filter: blur(7px);
}
.marquee::before {
  left: 0;
  background: linear-gradient(90deg, var(--bg-deep) 6%, color-mix(in oklab, var(--bg-deep) 52%, transparent) 58%, transparent);
  -webkit-mask-image: linear-gradient(90deg, #000 28%, transparent);
  mask-image: linear-gradient(90deg, #000 28%, transparent);
}
.marquee::after {
  right: 0;
  background: linear-gradient(270deg, var(--bg-deep) 6%, color-mix(in oklab, var(--bg-deep) 52%, transparent) 58%, transparent);
  -webkit-mask-image: linear-gradient(270deg, #000 28%, transparent);
  mask-image: linear-gradient(270deg, #000 28%, transparent);
}
.marquee-item {
  position: relative; flex: none; width: clamp(260px, 24vw, 360px);
  border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border); background: var(--surface);
}
.marquee-item img { width: 100%; height: 196px; object-fit: cover; transition: transform 0.7s var(--ease-out); }
.marquee-item:hover img { transform: scale(1.04); }
.marquee-cap {
  position: absolute; inset: auto 0 0 0; padding: 26px 16px 13px;
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: linear-gradient(180deg, transparent, oklch(0.115 0.010 48 / 0.92));
  font-size: 13px; color: var(--fg);
}
.marquee-cap .tag-mini {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em;
  color: var(--accent-2); text-transform: uppercase;
}

/* ─── cards ───────────────────────────────────────────────────────────────── */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: var(--gap-lg);
}
.card-quiet { background: transparent; border-color: var(--border); }

/* media scene wall — uniform tiles: every frame fills the same 16:9 box */
.tile-wall { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--gap-lg); }
.tile {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--border); background: var(--surface);
  display: flex; flex-direction: column;
}
.tile img {
  display: block; width: 100%; aspect-ratio: 16 / 9; height: auto;
  object-fit: cover; transition: transform 0.75s var(--ease-out);
}
.tile:hover img { transform: scale(1.05); }
.tile-body { padding: 18px 20px 20px; flex: 1 1 auto; }
.tile-body h3 { font-size: 16.5px; }
.tile-body p { margin: 5px 0 0; font-size: 13.5px; color: var(--muted); }
.tile-idx {
  position: absolute; top: 14px; left: 14px; z-index: 2;
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.1em;
  padding: 4px 9px; border-radius: 999px;
  background: oklch(0.115 0.010 48 / 0.7); color: var(--fg);
  border: 1px solid oklch(1 0 0 / 0.14);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.tile::after {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  box-shadow: inset 0 0 0 1px oklch(1 0 0 / 0.05);
  border-radius: inherit;
}

/* ─── brand wall → assets/accordion-gallery.css (AccordionGallery port) ───── */

/* ─── news ────────────────────────────────────────────────────────────────── */
.news-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--gap-lg); }
.news-card {
  display: flex; flex-direction: column; gap: 14px;
  padding-top: var(--gap-md); border-top: 1px solid var(--border);
  transition: border-color 0.3s var(--ease);
}
.news-card:hover { border-top-color: var(--accent); }
.news-card h3 { font-size: 19px; line-height: 1.45; transition: color 0.25s var(--ease); }
.news-card:hover h3 { color: var(--accent-2); }
.news-card p { margin: 0; font-size: 14.5px; line-height: 1.72; color: var(--muted); }
.news-card .news-foot {
  margin-top: auto; padding-top: 14px; display: flex; align-items: center; justify-content: space-between;
  gap: 12px; font-family: var(--font-mono); font-size: 11.5px; color: var(--muted);
}
.filter-bar { display: flex; flex-wrap: wrap; gap: 8px; }
.empty { margin: var(--gap-lg) 0 0; padding: var(--gap-lg); text-align: center; color: var(--muted); font-size: 15px; border: 1px dashed var(--border); border-radius: var(--radius-lg); }
.chip {
  min-height: 44px; padding: 10px 16px; border-radius: 999px;
  border: 1px solid var(--border); color: var(--muted); font-size: 14px;
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease), background 0.22s var(--ease);
}
.chip:hover { color: var(--fg); border-color: color-mix(in oklab, var(--fg) 40%, transparent); }
.chip[aria-pressed='true'] {
  background: var(--fg); color: var(--bg); border-color: var(--fg); font-weight: 500;
}
.log-list { border-top: 1px solid var(--border); }
.log-row {
  display: grid; grid-template-columns: 132px minmax(0, 1fr) 120px;
  gap: var(--gap-lg); align-items: baseline;
  padding: 26px 0; border-bottom: 1px solid var(--border);
  transition: background 0.28s var(--ease), padding-inline 0.28s var(--ease);
}
.log-row:hover { background: var(--fg-soft); padding-inline: 16px; }
.log-row h3 { font-size: 20px; line-height: 1.42; transition: color 0.25s var(--ease); }
.log-row:hover h3 { color: var(--accent-2); }
.log-row .dek { margin: 7px 0 0; font-size: 14.5px; color: var(--muted); line-height: 1.7; max-width: 74ch; }
.log-row .pull { text-align: right; }
.log-row .date { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em; color: var(--muted); }
.news-tag-pill {
  display: inline-block; font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.1em;
  padding: 5px 11px; border-radius: 999px; border: 1px solid var(--border);
  color: var(--muted); background: var(--fg-soft); white-space: nowrap;
}
.log-row:hover .news-tag-pill { color: var(--accent-2); border-color: color-mix(in oklab, var(--accent) 40%, transparent); }
.log-row[hidden] { display: none; }

/* ─── diagram: LP → GP → 企业 ─────────────────────────────────────────────── */
.diagram { position: relative; }
.diagram-cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 3vw, 44px); align-items: start; }
.dnode {
  position: relative; text-align: center; padding: clamp(22px, 3vw, 34px) clamp(16px, 2vw, 26px);
  border: 1px solid var(--border); border-radius: var(--radius-xl);
  background: var(--surface);
}
.dnode.is-core { border-color: color-mix(in oklab, var(--accent) 55%, transparent); background: color-mix(in oklab, var(--accent) 12%, var(--surface)); }
.dnode-role {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 10px;
}
.dnode-name { font-family: var(--font-display); font-size: clamp(21px, 2vw, 27px); font-weight: 600; letter-spacing: -0.01em; }
.dnode p { margin: 10px 0 0; font-size: 13.5px; color: var(--muted); line-height: 1.7; }
.dnode-tags { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin-top: 18px; }
.dtag {
  font-size: 11.5px; padding: 4px 9px; border-radius: 6px;
  border: 1px solid var(--border); color: var(--muted); background: var(--fg-soft);
}
.dnode.is-core .dtag { border-color: color-mix(in oklab, var(--accent) 30%, transparent); color: var(--accent-2); }
.dflow { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 3vw, 44px); margin-top: var(--gap-lg); }
.dflow-cell { position: relative; height: 34px; display: flex; align-items: center; }
.dflow-cell::before {
  content: ''; position: absolute; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border) 18%, var(--border) 82%, transparent);
}
.dflow-cell:last-child::before { background: none; }
.dflow-pill {
  position: relative; margin-inline: auto; padding: 6px 15px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--bg); color: var(--muted);
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em;
  display: inline-flex; align-items: center; gap: 8px;
}
.dflow-pill b { color: var(--accent-2); font-weight: 600; }
.arrow-row { display: flex; align-items: center; justify-content: center; gap: 10px; margin-top: var(--gap-md); }
.flow-arrow { flex: 1; height: 1.5px; background: linear-gradient(90deg, transparent, var(--border), transparent); position: relative; }
.flow-arrow::after {
  content: ''; position: absolute; right: -1px; top: -3.5px; width: 8px; height: 8px;
  border-top: 1.5px solid var(--border); border-right: 1.5px solid var(--border);
  transform: rotate(45deg);
}
.flow-label { font-family: var(--font-mono); font-size: 11px; color: var(--muted); letter-spacing: 0.1em; white-space: nowrap; }

/* ─── invest-model flow animation (homepage 投资模式 preview) ─────────────── */
.flow-block { display: grid; gap: clamp(28px, 4vw, 52px); }
.lead-split { display: grid; grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr); gap: clamp(24px, 5vw, 72px); align-items: start; }
.lead-split h2 { margin: 0; }
.lead-split.is-head { margin-bottom: var(--gap-xl); }
.lead-body { max-width: 60ch; }
.lead-body > * + * { margin-top: 18px; }
.lead-body .lead-cta { margin-top: 30px; }
.flow { position: relative; }
.flow-scroll { overflow-x: auto; overflow-y: hidden; -webkit-overflow-scrolling: touch; }
.flow-svg {
  display: block; width: 100%; height: auto;
  border-radius: var(--radius-lg); border: 1px solid var(--border);
  background:
    radial-gradient(60% 72% at 24% 22%, color-mix(in oklab, var(--accent) 15%, transparent), transparent 68%),
    radial-gradient(60% 72% at 78% 22%, color-mix(in oklab, #3f8ef0 14%, transparent), transparent 70%),
    var(--bg-deep);
}

/* hubs */
.flow-hub-label {
  font-family: var(--font-display); font-weight: 600;
  fill: var(--on-accent);
  text-anchor: middle; letter-spacing: 0.01em;
}
.flow-hub.is-media .flow-hub-label { font-size: 33px; }
.flow-hub.is-brand .flow-hub-label { font-size: 36px; }
.flow-hub.is-company .flow-hub-label { font-size: 30px; }
.flow-hub-label .flow-sub { font-size: 0.78em; font-weight: 500; opacity: 0.82; }
.flow-hub.is-company .flow-hub-label { fill: #eef5ff; }
.flow-hub.is-company .flow-hub-label .flow-sub { fill: #eef5ff; opacity: 0.9; }

.flow-disc { fill: url(#fgMedia); }
.flow-ring { fill: none; stroke: url(#fgMedia); stroke-width: 13; }
.flow-hub.is-brand .flow-disc { fill: url(#fgBrand); }
.flow-hub.is-brand .flow-ring { stroke: url(#fgBrand); stroke-width: 11; }
.flow-hub.is-company .flow-disc { fill: url(#fgCompany); }
.flow-hub.is-company .flow-ring { stroke: url(#fgCompany); }

/* satellite chips */
.flow-chip circle {
  fill: color-mix(in oklab, var(--accent) 13%, var(--bg-deep));
  stroke: color-mix(in oklab, var(--accent) 62%, transparent);
  stroke-width: 2;
}
.flow-chip text {
  font-family: var(--font-display); font-weight: 500; font-size: 24px;
  fill: var(--fg); text-anchor: middle; letter-spacing: 0.01em;
}
.flow-chip.is-company circle {
  fill: color-mix(in oklab, #3f8ef0 15%, var(--bg-deep));
  stroke: color-mix(in oklab, #3f8ef0 70%, transparent);
}

/* connectors */
.flow-link { fill: none; stroke-width: 3; stroke-linecap: round; stroke-dasharray: 10 8; }
.flow-link.is-warm { stroke: var(--accent); }
.flow-link.is-blue { stroke: #3f8ef0; }

/* orbit rings */
.flow-orbit { fill: none; stroke-width: 1.8; stroke-dasharray: 3 12; opacity: 0.6; stroke: color-mix(in oklab, var(--accent) 45%, transparent); }
.flow-orbit.is-company { stroke: color-mix(in oklab, #3f8ef0 48%, transparent); }

/* radar ping + travelling value dots */
.flow-ping { fill: none; stroke-width: 2; transform-box: fill-box; transform-origin: center; }
.flow-ping.is-media { stroke: var(--accent); }
.flow-ping.is-brand { stroke: #faac40; }
.flow-ping.is-company { stroke: #3f8ef0; }
.flow-dot { transform-box: fill-box; }
.flow-dot.is-warm { fill: var(--accent); }
.flow-dot.is-blue { fill: #3f8ef0; }

/* motion — every animated piece sets transform-box so SVG transforms pivot on center */
.flow-orbit, .flow-hub-ent, .flow-hub-inner, .flow-chip, .flow-ping { transform-box: fill-box; transform-origin: center; }

.flow-orbit { animation: flowSpin 36s linear infinite; }
.flow-orbit.is-company { animation-duration: 48s; animation-direction: reverse; }
.flow-hub-inner { animation: flowBreath 5.4s ease-in-out infinite; }
.flow-hub.is-brand .flow-hub-inner { animation-delay: -1.8s; }
.flow-hub.is-company .flow-hub-inner { animation-delay: -3.6s; }
.flow-link { animation: flowDash 0.95s linear infinite; }
.flow-link.is-rev { animation-direction: reverse; }
.flow-chip { animation: flowBob 4.6s ease-in-out infinite; animation-delay: calc(var(--i, 0) * -0.6s); }
.flow-chip circle { animation: flowPulse 4.6s ease-in-out infinite; animation-delay: calc(var(--i, 0) * -0.42s); }
.flow-ping { animation: flowPing 3.2s var(--ease-out) infinite; animation-delay: var(--pd, 0s); }
.flow-dot { animation: flowTravel 2.7s var(--ease) infinite; animation-delay: var(--dd, 0s); }

/* entrance — only under JS, and only once the figure scrolls into view */
.js .flow-hub-ent,
.js .flow-chip,
.js .flow-link { opacity: 0; }
.figure.reveal.is-in .flow-hub-ent {
  animation: flowIn 0.72s var(--ease-out) calc(var(--hd, 0) * 1ms) both;
}
.figure.reveal.is-in .flow-chip {
  animation: flowChipIn 0.5s var(--ease-out) calc(var(--i, 0) * 42ms + 260ms) both,
             flowBob 4.6s ease-in-out calc(var(--i, 0) * -0.6s) infinite;
}
.figure.reveal.is-in .flow-link {
  animation: flowFade 0.6s ease 420ms both,
             flowDash 0.95s linear infinite;
}

@keyframes flowIn { from { opacity: 0; transform: scale(0.82); } to { opacity: 1; transform: none; } }
@keyframes flowChipIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes flowFade { from { opacity: 0; } to { opacity: 1; } }
@keyframes flowBreath { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.032); } }
@keyframes flowBob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
@keyframes flowSpin { to { transform: rotate(360deg); } }
@keyframes flowDash { to { stroke-dashoffset: -21; } }
@keyframes flowPulse { 0%, 100% { opacity: 1; } 45% { opacity: 0.45; } }
@keyframes flowPing { 0% { transform: scale(1); opacity: 0.55; } 70%, 100% { transform: scale(1.5); opacity: 0; } }
@keyframes flowTravel {
  0% { transform: translateX(0); opacity: 0; }
  14% { opacity: 1; }
  86% { opacity: 1; }
  100% { transform: translateX(var(--tx, 0px)); opacity: 0; }
}

/* ─── standards (numbered) ────────────────────────────────────────────────── */
.std-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 0; border-top: 1px solid var(--border); }
.std-item {
  padding: var(--gap-lg) var(--gap-lg) var(--gap-lg) 0; border-bottom: 1px solid var(--border);
  position: relative;
}
.std-item + .std-item { padding-left: var(--gap-lg); border-left: 1px solid var(--border); }
.std-num {
  font-family: var(--font-display); font-size: 30px; font-weight: 600; line-height: 1;
  color: var(--accent); letter-spacing: -0.02em; display: block; margin-bottom: 14px;
}
.std-item p { margin: 0; font-size: 15px; line-height: 1.75; color: var(--fg); }
.std-item .std-hint { margin-top: 10px; font-size: 13px; color: var(--muted); }

/* ─── article / prose ─────────────────────────────────────────────────────── */
.progress-bar {
  position: fixed; top: 0; left: 0; height: 2px; width: 0; z-index: 70;
  background: var(--brand-grad); transition: width 0.1s linear;
}
.article-head { max-width: none; }
.article-head h1 { font-size: clamp(30px, 3.5vw, 50px); line-height: 1.18; max-width: 18em; }
.article-meta { display: flex; flex-wrap: wrap; gap: 10px 20px; align-items: center; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em; color: var(--muted); }
.article-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--muted); opacity: 0.6; }
.prose { max-width: 70ch; }
.prose > * + * { margin-top: 22px; }
.prose p { margin: 0; font-size: 16.5px; line-height: 1.92; color: color-mix(in oklab, var(--fg) 88%, var(--muted)); }
.prose h2 {
  font-size: clamp(23px, 2.2vw, 30px); margin-top: clamp(44px, 5vw, 68px);
  padding-top: var(--gap-lg); border-top: 1px solid var(--border);
}
.prose h3 { font-size: 19px; margin-top: 34px; color: var(--fg); }
.prose strong { color: var(--fg); font-weight: 600; }
.prose blockquote {
  margin: 30px 0; padding: 4px 0 4px 24px; border-left: 2px solid var(--accent);
  font-family: var(--font-display); font-size: clamp(19px, 1.9vw, 24px); line-height: 1.6; color: var(--fg);
}
.prose ul { margin: 0; padding-left: 20px; color: var(--muted); }
.prose li + li { margin-top: 8px; }
.prose li { line-height: 1.85; }

/* bar chart — filled encoding, real values only */
.chart {
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: clamp(22px, 3vw, 34px); background: var(--surface);
}
.chart-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: var(--gap-lg); }
.chart-title { font-size: 16px; font-weight: 600; }
.chart-scale { font-family: var(--font-mono); font-size: 11px; color: var(--muted); }
.chart-rows { display: flex; flex-direction: column; gap: 18px; }
.chart-row { display: grid; grid-template-columns: 78px minmax(0, 1fr) 66px; gap: 14px; align-items: center; }
.chart-name { font-size: 14px; color: var(--fg); }
.chart-track { height: 12px; border-radius: 999px; background: var(--fg-soft); overflow: hidden; }
.chart-fill {
  height: 100%; border-radius: 999px; width: 0;
  background: linear-gradient(90deg, color-mix(in oklab, var(--accent) 82%, var(--bg)), var(--accent-2));
  transition: width 1.1s var(--ease-out);
}
.chart-row.is-peak .chart-fill { background: var(--brand-grad); }
.chart-val { font-family: var(--font-mono); font-size: 14px; text-align: right; color: var(--fg); font-variant-numeric: tabular-nums; }
.chart-note { margin-top: var(--gap-lg); padding-top: 16px; border-top: 1px solid var(--border); font-size: 12.5px; color: var(--muted); }

/* brand card (BP) */
.bp-card {
  display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(24px, 4vw, 52px); align-items: center;
  border: 1px solid var(--border); border-radius: var(--radius-xl);
  padding: clamp(24px, 3.4vw, 44px);
  background: var(--surface);
}
.bp-card h3 { font-family: var(--font-display); font-size: clamp(22px, 2.2vw, 29px); }
.bp-list { margin: var(--gap-md) 0 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.bp-list li { display: grid; grid-template-columns: 64px 1fr; gap: 12px; font-size: 14px; align-items: baseline; }
.bp-list em { font-style: normal; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; color: var(--muted); text-transform: uppercase; }
.bp-list a { color: var(--accent-2); }
.bp-list a:hover { text-decoration: underline; }
.bp-visual img { width: 100%; border-radius: var(--radius-lg); border: 1px solid var(--border); }

/* ─── forms ───────────────────────────────────────────────────────────────── */
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--gap-md); }
.field { display: flex; flex-direction: column; gap: 7px; }
.field-full { grid-column: 1 / -1; }
.field label { font-size: 13px; color: var(--muted); letter-spacing: 0.02em; }
.field label .req { color: var(--accent); margin-left: 3px; }
.input, .textarea, select.input {
  width: 100%; min-height: 48px; padding: 12px 15px;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); color: var(--fg); font: inherit; font-size: 15px;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease);
}
.input::placeholder, .textarea::placeholder { color: color-mix(in oklab, var(--muted) 72%, transparent); }
.input:hover, .textarea:hover { border-color: color-mix(in oklab, var(--fg) 26%, transparent); }
.input:focus, .textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.textarea { min-height: 118px; resize: vertical; line-height: 1.65; }
.field-err { font-size: 12.5px; color: oklch(0.72 0.16 25); min-height: 0; display: none; }
.field.is-invalid .input, .field.is-invalid .textarea { border-color: oklch(0.60 0.19 25); }
.field.is-invalid .field-err { display: block; }
.form-note { font-size: 12.5px; color: var(--muted); margin: 0; }
.form-success {
  display: none; align-items: center; gap: 12px; padding: 16px 18px;
  border: 1px solid color-mix(in oklab, var(--accent) 42%, transparent);
  background: var(--accent-soft); border-radius: var(--radius); color: var(--fg); font-size: 14.5px;
}
.form-success.is-on { display: flex; }
.form-success svg { flex: none; color: var(--accent); }
.form-error {
  display: none; align-items: center; gap: 12px; padding: 14px 18px;
  border: 1px solid color-mix(in oklab, oklch(0.60 0.19 25) 46%, transparent);
  background: color-mix(in oklab, oklch(0.60 0.19 25) 14%, transparent);
  border-radius: var(--radius); color: var(--fg); font-size: 14px;
}
.form-error.is-on { display: flex; }

/* ─── CTA band ────────────────────────────────────────────────────────────── */
.cta-band {
  position: relative; overflow: hidden; text-align: center;
  border-top: 1px solid var(--border);
  background:
    radial-gradient(54% 90% at 50% 0%, color-mix(in oklab, var(--accent) 16%, transparent), transparent 70%),
    var(--bg);
}
.cta-band .wrap { position: relative; z-index: 1; }
.cta-band h2 { max-width: 22ch; margin-inline: auto; }
.cta-band .lead { margin: var(--gap-md) auto var(--gap-lg); max-width: 48ch; }
.cta-actions { display: flex; flex-wrap: wrap; gap: var(--gap-sm); justify-content: center; }
/* contact band variant: every .cta-band in this site is the two-column contact
   block, so the centred base above is overridden with a left-aligned intro. */
.cta-band .split-wide { text-align: left; align-items: center; }
.cta-band .split-wide h2 { max-width: 30ch; margin-inline: 0; }
.cta-band .split-wide .lead { max-width: 46ch; margin: var(--gap-md) 0 0; }

/* ─── footer ──────────────────────────────────────────────────────────────── */
.foot {
  background: var(--bg-deep); border-top: 1px solid var(--border);
  padding-block: clamp(48px, 6vw, 84px) var(--gap-lg);
}
.foot-grid {
  display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr)) minmax(0, 1.2fr);
  gap: clamp(24px, 4vw, 48px);
  padding-bottom: var(--gap-xl); border-bottom: 1px solid var(--border);
}
.foot-brand img { display: block; width: 148px; height: auto; margin-bottom: 16px; }
.foot-brand p { margin: 0; font-size: 13.5px; color: var(--muted); line-height: 1.8; max-width: 32ch; }
.foot-col h4 {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--muted); margin: 0 0 16px; font-weight: 500;
}
.foot-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.foot-col a { font-size: 14.5px; color: color-mix(in oklab, var(--fg) 78%, transparent); }
.foot-col a:hover { color: var(--accent-2); }
.foot-col address { font-style: normal; font-size: 14px; color: var(--muted); line-height: 1.85; }
.foot-col address a { color: var(--fg); }
.foot-col address a:hover { color: var(--accent-2); }
.foot-bottom {
  display: flex; align-items: center; justify-content: space-between; gap: var(--gap-md);
  flex-wrap: wrap; padding-top: var(--gap-lg); font-size: 12.5px; color: var(--muted);
}
.foot-bottom .rule-dot { opacity: 0.4; }

/* ─── misc ────────────────────────────────────────────────────────────────── */
.to-top {
  position: fixed; right: clamp(16px, 3vw, 32px); bottom: clamp(16px, 3vw, 32px); z-index: 55;
  width: 46px; height: 46px; border-radius: 999px; display: grid; place-items: center;
  background: var(--surface); border: 1px solid var(--border); color: var(--fg);
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s, background 0.2s var(--ease), border-color 0.2s var(--ease);
  box-shadow: 0 16px 34px -20px oklch(0 0 0 / 0.7);
}
.to-top.is-on { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--surface-2); border-color: color-mix(in oklab, var(--fg) 34%, transparent); }
.tag {
  display: inline-flex; align-items: center; padding: 4px 10px; border-radius: 999px;
  border: 1px solid var(--border); color: var(--muted); font-size: 12px;
}
.pill {
  display: inline-flex; align-items: center; gap: 7px; padding: 5px 12px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent);
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
}
.pill i { width: 5px; height: 5px; border-radius: 999px; background: currentColor; }
.quote {
  font-family: var(--font-display); font-size: clamp(21px, 2.3vw, 31px);
  line-height: 1.5; letter-spacing: -0.01em; max-width: 30ch; margin: 0;
}
.hr { height: 1px; background: var(--border); border: 0; margin: 0; }

/* ─── decorative band (croppable fill, intentional) ───────────────────────── */
.band { position: relative; overflow: hidden; border-block: 1px solid var(--border); background: var(--surface); }
.band img { width: 100%; height: clamp(220px, 32vw, 400px); object-fit: cover; }
.band-cap {
  position: absolute; inset: auto 0 0 0; margin: 0; padding: 30px var(--gutter) 15px;
  background: linear-gradient(180deg, transparent, oklch(0.115 0.010 48 / 0.9));
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em;
  color: var(--fg); text-transform: uppercase;
}
.band-cap b { color: var(--accent-2); font-weight: 500; }

/* figure with caption */
.figure { margin: 0; }
.figure img { width: 100%; height: auto; border-radius: var(--radius-lg); border: 1px solid var(--border); }
.figure figcaption { margin-top: 10px; font-size: 12.5px; color: var(--muted); }

/* breadcrumb */
.crumb { display: flex; gap: 8px; align-items: center; font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.08em; color: var(--muted); margin-bottom: var(--gap-md); }
.crumb a:hover { color: var(--accent-2); }
.crumb .sep { opacity: 0.45; }

/* numbered media rows */
.media-row { display: grid; grid-template-columns: 116px minmax(0, 1fr); gap: var(--gap-md); align-items: baseline; padding: 20px 0; border-bottom: 1px solid var(--border); }
.media-row .idx { font-family: var(--font-mono); font-size: 11px; color: var(--accent); letter-spacing: 0.1em; }
.media-row h3 { font-size: 17px; }
.media-row p { margin: 6px 0 0; font-size: 14px; color: var(--muted); line-height: 1.7; }

/* author / source card */
.author { display: grid; grid-template-columns: 92px minmax(0, 1fr); gap: 18px; align-items: center; padding: 22px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--surface); }
.author img { width: 100%; height: auto; }
.author strong { display: block; font-size: 15px; }
.author p { margin: 4px 0 0; font-size: 13px; color: var(--muted); line-height: 1.7; }

/* ─── keyboard focus visibility ───────────────────────────────────────────── */
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}
.input:focus-visible,
.textarea:focus-visible,
select.input:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 2px;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

/* ─── reveal (progressive enhancement) ────────────────────────────────────── */
.js .reveal { opacity: 0; transform: translateY(22px); }
.js .reveal.is-in {
  opacity: 1; transform: none;
  transition: opacity 0.85s var(--ease-out) var(--d, 0ms), transform 0.85s var(--ease-out) var(--d, 0ms);
}
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; }
  .marquee-track { animation: none; }
  .hero-scroll i::after { animation: none; }
  .hero-grain { display: none; }
  .flow-orbit, .flow-hub-ent, .flow-hub-inner, .flow-chip, .flow-chip circle,
  .flow-link { animation: none !important; opacity: 1 !important; transform: none !important; }
  .flow-link { stroke-dasharray: none; }
  .flow-ping, .flow-dot { display: none; }
}

/* ─── responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 1080px) {
  .nav-links { display: none; }
  .nav-toggle { display: grid; }
  .nav.is-open .nav-links {
    display: flex; flex-direction: column; align-items: stretch; gap: 2px;
    position: absolute; left: 0; right: 0; top: 100%;
    padding: var(--gap-md) var(--gutter) var(--gap-lg);
    background: oklch(0.130 0.010 48 / 0.98);
    -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
  }
  .nav.is-open .nav-links a { padding: 13px 12px; font-size: 16px; border-radius: var(--radius-sm); }
  .nav.is-open .nav-links a[aria-current='page']::after { display: none; }
  .nav.is-open .nav-links a[aria-current='page'] { color: var(--accent-2); }
  .foot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  /* once the layout narrows, the hero copy reaches into the bright right half
     of the photo — deepen the scrim and lift the lead so it stays legible */
  .hero-bg::after {
    background:
      radial-gradient(60% 50% at 88% 16%, color-mix(in oklab, var(--accent) 20%, transparent), transparent 72%),
      linear-gradient(94deg,
        var(--bg-deep) 0%,
        color-mix(in oklab, var(--bg-deep) 96%, transparent) 30%,
        color-mix(in oklab, var(--bg-deep) 78%, transparent) 62%,
        color-mix(in oklab, var(--bg-deep) 54%, transparent) 100%),
      linear-gradient(180deg,
        color-mix(in oklab, var(--bg-deep) 50%, transparent) 0%,
        color-mix(in oklab, var(--bg-deep) 24%, transparent) 30%,
        color-mix(in oklab, var(--bg-deep) 48%, transparent) 66%,
        var(--bg-deep) 100%);
  }
  .hero .lead {
    color: var(--fg);
    text-shadow: 0 1px 14px color-mix(in oklab, var(--bg-deep) 80%, transparent);
  }
}
@media (max-width: 920px) {
  .grid-2, .split, .split-wide, .news-grid,
  .diagram-cols, .dflow, .form-grid, .bp-card, .lead-split { grid-template-columns: 1fr; }
  .tile-wall { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat-strip .stat { padding-left: 0; border-left: 0; }
  .stat-strip .stat:nth-child(odd) { border-right: 1px solid var(--border); padding-right: var(--gap-md); }
  .stat-strip .stat:nth-child(n + 3) { border-top: 1px solid var(--border); }
  .std-list { grid-template-columns: 1fr; }
  .std-item + .std-item { padding-left: 0; border-left: 0; }
  .log-row { grid-template-columns: 1fr; gap: 10px; }
  .log-row .pull { text-align: left; }
  .log-row:hover { padding-inline: 12px; }
  .hero { min-height: 0; }
  .hero-foot { grid-template-columns: 1fr; gap: var(--gap-lg); }
  .hero-cta { justify-content: flex-start; }
  .hero-scroll { display: none; }
  .marquee-item { width: min(74vw, 300px); }
  .marquee-item img { height: 180px; }
  .dflow-cell::before { display: none; }
  .dflow-cell { height: auto; }
  .bp-card { gap: var(--gap-lg); }
}
@media (max-width: 640px) {
  :root { --fs-body: 15.5px; }
  .tile-wall { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
  .stat-strip { grid-template-columns: 1fr; }
  .stat-strip .stat { padding-right: 0; }
  .stat-strip .stat:nth-child(n + 2) { border-top: 1px solid var(--border); }
  .chart-row { grid-template-columns: 64px minmax(0, 1fr) 58px; gap: 10px; }
  .cta-actions .btn { width: 100%; }
  .media-row { grid-template-columns: 1fr; gap: 6px; }
  .author { grid-template-columns: 1fr; gap: 14px; }
  .author img { width: 116px; }
  .flow-svg { min-width: 640px; }
}