:root {
  --bg: #ececec;
  --ink: #111111;
  --muted: #6a6a6a;
  --tile: #111111;
  --tile-text: #f4f4f4;
  --tile-muted: #9a9a9a;
  --tile-soon: #2a2a2a;
  --line: rgba(255, 255, 255, 0.08);

  --gutter: clamp(1.1rem, 4vw, 3rem);
  --page: min(92rem, calc(100% - 2 * var(--gutter)));
  --page-narrow: min(44rem, calc(100% - 2 * var(--gutter)));
  --title: clamp(2.35rem, 1.5rem + 3vw, 4rem);
  --card-title: clamp(1.45rem, 1.15rem + 1.1vw, 2rem);
  --body: clamp(1.05rem, 0.95rem + 0.35vw, 1.2rem);
  --small: clamp(0.86rem, 0.8rem + 0.22vw, 1rem);
  --radius: clamp(24px, 2.4vw, 36px);
  --card-gap: clamp(1rem, 1.8vw, 1.5rem);
  --card-pad: clamp(1.55rem, 2.4vw, 2.35rem);
  --card-min-h: 20.5rem;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

html, body { min-height: 100%; min-height: 100dvh; }

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  font-size: var(--body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
}

.wrap {
  width: var(--page);
  margin: 0 auto;
  padding: 4rem 0 4.4rem;
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
  container-type: inline-size;
  container-name: page;
}

.wrap.page { width: var(--page-narrow); }

.eyebrow {
  color: var(--muted);
  font-size: var(--small);
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

h1 {
  margin-top: 0.4em;
  font-size: var(--title);
  font-weight: 560;
  letter-spacing: -0.04em;
  line-height: 1.1;
}

.lede {
  margin-top: 0.9em;
  max-width: 34em;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--card-gap);
  margin-top: 2.6rem;
}

a.card, .card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: var(--card-min-h);
  padding: var(--card-pad);
  background: var(--tile);
  color: var(--tile-text);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.08);
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
  container-type: inline-size;
}

a.card:hover {
  background: #000;
  transform: translateY(-3px);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.16);
}

.card.soon {
  background: var(--tile-soon);
  color: #cfcfcf;
  box-shadow: none;
}

.idx {
  font-size: var(--small);
  color: var(--tile-muted);
  letter-spacing: 0.18em;
}

.card h2 {
  margin-top: 1.2em;
  font-size: clamp(1.45rem, 5.2cqi, 2rem);
  font-weight: 560;
  letter-spacing: -0.02em;
}

.card p {
  margin-top: 0.5em;
  color: var(--tile-muted);
  font-size: var(--small);
  flex: 1;
}

.go {
  margin-top: 1.25em;
  font-size: var(--small);
  color: #fff;
  letter-spacing: 0.04em;
}

.card.soon .go { color: #8d8d8d; }

.back {
  display: inline-block;
  color: var(--muted);
  text-decoration: none;
  font-size: var(--small);
}

.back:hover { color: var(--ink); }

.box {
  margin-top: 2rem;
  padding: clamp(1.45rem, 3vw, 1.9rem);
  background: var(--tile);
  color: var(--tile-text);
  border-radius: var(--radius);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.08);
}

.box .label {
  font-size: var(--small);
  color: var(--tile-muted);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.box p { margin-top: 0.55em; color: var(--tile-muted); }

code {
  display: inline-block;
  margin-top: 0.35em;
  font-size: var(--small);
  color: #fff;
  overflow-wrap: anywhere;
  word-break: break-all;
}

.btn {
  display: inline-block;
  margin-top: 1.25em;
  padding: 0.65em 1.2em;
  background: #fff;
  color: #111;
  text-decoration: none;
  font-size: var(--small);
  border-radius: 999px;
}

.btn:hover { background: #e8e8e8; }

.note {
  margin-top: 1.25em;
  color: var(--muted);
  font-size: var(--small);
}

@media (max-width: 860px) {
  .grid { grid-template-columns: 1fr; }
  :root { --card-min-h: 16rem; }
}

@container page (max-width: 48rem) {
  .grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  a.card, .card { transition: none; }
}