:root {
  --bg: #07080c;
  --panel: #0f1118;
  --line: rgba(255, 255, 255, 0.08);
  --text: #f3f4f8;
  --muted: rgba(243, 244, 248, 0.62);
  --accent: #ffe14d;
  --radius: 14px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Hiragino Sans", "Noto Sans JP", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.wrap { max-width: 720px; margin: 0 auto; padding: 0 20px; }
header.top { display: flex; align-items: center; justify-content: space-between; padding: 28px 0; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -0.01em; text-decoration: none; font-size: 18px; }
.brand svg { width: 28px; height: 28px; }
.lang { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: 14px; text-decoration: none; border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; }
.lang:hover { color: var(--text); border-color: rgba(255, 255, 255, 0.2); }
.icon { width: 18px; height: 18px; flex: none; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.hero { padding: 56px 0 40px; }
.eyebrow { color: var(--accent); font-size: 13px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 14px; }
h1 { font-size: clamp(30px, 6vw, 44px); line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 18px; }
.lead { color: var(--muted); font-size: 17px; margin: 0; max-width: 34em; }
h2 { font-size: 14px; font-weight: 600; color: var(--muted); letter-spacing: 0.06em; text-transform: uppercase; margin: 48px 0 16px; }
.cards { display: grid; gap: 12px; }
.card { display: grid; grid-template-columns: auto 1fr auto; gap: 16px; align-items: start; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; text-decoration: none; transition: border-color .15s ease, transform .15s ease; }
.card:hover { border-color: rgba(255, 225, 77, 0.45); transform: translateY(-1px); }
.card .badge { width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; background: rgba(255, 225, 77, 0.1); color: var(--accent); }
.card .badge .icon { width: 20px; height: 20px; }
.card h3 { margin: 0 0 4px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card .go { color: var(--muted); margin-top: 2px; }
.card .url { display: block; margin-top: 8px; font-size: 13px; color: rgba(243, 244, 248, 0.45); word-break: break-all; }
dl.facts { margin: 0; border-top: 1px solid var(--line); }
dl.facts div { display: grid; grid-template-columns: 9em 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
dl.facts dt { color: var(--muted); }
dl.facts dd { margin: 0; }
footer { margin: 72px 0 40px; color: rgba(243, 244, 248, 0.42); font-size: 13px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
@media (max-width: 480px) {
  .wrap { padding: 0 16px; }
  .hero { padding: 36px 0 28px; }
  .card { grid-template-columns: auto 1fr; }
  .card .go { display: none; }
  dl.facts div { grid-template-columns: 1fr; gap: 2px; }
}
@media (prefers-reduced-motion: reduce) { .card { transition: none; } .card:hover { transform: none; } }
h1:lang(ja), .card p:lang(ja), .lead:lang(ja) { word-break: auto-phrase; }