:root {
  --bg: #e6e0d4;
  --card: #f6f2ea;
  --ink: #1c1915;
  --muted: #5e584e;
  --line: #d4cdc0;
  --accent: #8d3b32;
  --pine: #1b3a30;
  --pine-ink: #f4efe6;
  --shadow: 0 1px 0 rgba(28, 25, 21, 0.04);
  --sans: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --serif: "Noto Serif SC", "Songti SC", "Source Han Serif SC", "PMingLiU", serif;
  --latin: "Instrument Serif", "Iowan Old Style", Palatino, "Palatino Linotype", serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141311;
    --card: #1e1c18;
    --ink: #f3efe6;
    --muted: #b7b0a4;
    --line: #34312b;
    --accent: #e08a7c;
    --pine: #d7e4dc;
    --pine-ink: #14241e;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  isolation: isolate;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.75;
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse at top left, rgba(141, 59, 50, 0.08), transparent 42%),
    radial-gradient(ellipse at bottom right, rgba(27, 58, 48, 0.08), transparent 46%);
}

body::before {
  content: "";
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: 0.12;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='.55'/></svg>");
}

a { color: inherit; }

.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--ink);
  color: var(--bg);
  padding: 0.4rem 0.7rem;
  z-index: 2;
}

.skip:focus { top: 1rem; }

.wrap {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.5rem 0 4rem;
}

.top {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-bottom: 1.25rem;
}

.mark {
  width: 2.5rem;
  height: 2.5rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  text-decoration: none;
  font-family: var(--latin);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--accent);
}

.kicker, .index, .eyebrow {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.who { margin: 0; font-size: 0.95rem; }

.lang {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.92rem;
  white-space: nowrap;
}

.lang button {
  margin: 0;
  padding: 0 0 0.05rem;
  border: 0;
  border-bottom: 1px solid transparent;
  background: none;
  appearance: none;
  font: inherit;
  color: var(--muted);
  cursor: pointer;
}

.lang button[aria-pressed="true"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

.xlink {
  margin-left: 1rem;
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 0.05rem;
}

.xlink:hover { color: var(--accent); }

.bento {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.85rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 1.15rem;
  box-shadow: var(--shadow);
  padding: 1.35rem 1.4rem 1.45rem;
}

.hero {
  grid-column: 1 / -1;
  position: relative;
  overflow: hidden;
  padding: 1.8rem 1.6rem 1.7rem;
}

.hero::after {
  content: "Ψ";
  position: absolute;
  right: 0.2rem;
  top: -1.4rem;
  font-family: var(--latin);
  font-size: clamp(8rem, 18vw, 13rem);
  line-height: 1;
  color: var(--accent);
  opacity: 0.14;
  pointer-events: none;
}

.eyebrow {
  font-family: var(--latin);
  font-size: 1.35rem;
  letter-spacing: 0.14em;
  text-transform: none;
  color: var(--accent);
}

h1, h2 {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: 0.01em;
  text-wrap: balance;
}

h1 {
  margin: 0.35rem 0 0.8rem;
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  line-height: 1.15;
  max-width: 20ch;
}

h2 {
  margin: 0.35rem 0 0.55rem;
  font-size: 1.45rem;
  line-height: 1.35;
}

.lead, .card p { margin: 0; position: relative; z-index: 1; }

h1, .eyebrow { position: relative; z-index: 1; }

.lead {
  max-width: 40rem;
  font-size: 1.08rem;
}

.lead + .lead { margin-top: 0.75rem; }

.span-3 { grid-column: span 3; }
.span-2 { grid-column: span 2; }
.span-4 { grid-column: span 4; }

.card p + p { margin-top: 0.55rem; }

.limits { margin: 0.2rem 0 0; padding: 0; list-style: none; }

.limits li {
  padding: 0.55rem 0;
  border-top: 1px solid var(--line);
}

.limits li:first-child { border-top: 0; padding-top: 0.15rem; }

.reach {
  background: var(--pine);
  color: var(--pine-ink);
  border-color: transparent;
  display: flex;
  flex-direction: column;
}

.reach .index { color: color-mix(in srgb, var(--pine-ink) 72%, transparent); }

.reach-link {
  margin-top: auto;
  padding-top: 1.2rem;
  font-family: var(--latin);
  font-size: 1.85rem;
  line-height: 1.2;
  text-underline-offset: 0.14em;
}

.foot {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.1rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.foot a { color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

@media (max-width: 860px) {
  .span-3, .span-2, .span-4 { grid-column: span 6; }
  .hero::after { font-size: 8rem; top: -0.6rem; }
}

@media (max-width: 560px) {
  .wrap { width: min(100% - 1.25rem, 1120px); }
  .foot { flex-direction: column; }
  h1 { max-width: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}