:root {
  color-scheme: light dark;
  --bg: #071a22;
  --panel: rgba(255, 255, 255, .92);
  --ink: #10212a;
  --muted: #5b6b74;
  --line: rgba(16, 33, 42, .14);
  --accent: #2f4bff;
  --radius: 18px;
  font-family: "Manrope", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { background: var(--bg); }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(120% 90% at 78% 12%, #0e6472 0%, #083f4f 34%, #042533 62%, #02131d 100%);
  line-height: 1.75;
}
a { color: var(--accent); text-underline-offset: .18em; }
.page { width: min(880px, calc(100% - 40px)); margin: 0 auto; padding: 46px 0 80px; }
.top { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 28px; color: #effbff; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: inherit; text-decoration: none; font-weight: 700; letter-spacing: -.02em; }
.brand img { width: 28px; height: 28px; border-radius: 8px; background: #fff; }
.langs { display: flex; flex-wrap: wrap; gap: 10px; font-size: 12px; color: #c8e9ee; }
.langs a { color: inherit; }
.card { background: var(--panel); border-radius: 26px; padding: clamp(24px, 5vw, 54px); box-shadow: 0 30px 80px rgba(0, 0, 0, .28); }
.kicker { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
h1 { font-size: clamp(34px, 6vw, 58px); line-height: 1.03; letter-spacing: -.055em; margin: 14px 0 18px; }
h2 { font-size: 22px; letter-spacing: -.03em; margin: 42px 0 12px; }
h3 { font-size: 17px; margin: 0 0 4px; }
p { margin: 0 0 14px; }
.lead { font-size: 18px; color: #263b45; max-width: 62ch; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 18px; }
.tile { border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; background: rgba(255, 255, 255, .62); }
.tile p { margin: 0; color: var(--muted); font-size: 14px; }
.apps { display: grid; gap: 10px; margin-top: 14px; }
.app { display: grid; grid-template-columns: 42px minmax(0, 1fr) auto; align-items: center; gap: 12px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255, 255, 255, .62); color: var(--ink); text-decoration: none; }
.app img { width: 42px; height: 42px; border-radius: 11px; object-fit: cover; background: #fff; }
.app small { display: block; color: var(--muted); font-size: 12px; }
.arrow { color: var(--muted); }
.contact { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.contact a { display: inline-flex; padding: 9px 14px; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; background: rgba(255, 255, 255, .62); }
details { border-top: 1px solid var(--line); padding: 14px 0; }
details:last-of-type { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; font-weight: 650; }
details p { color: var(--muted); margin-top: 8px; }
footer { margin-top: 28px; color: var(--muted); font-size: 12px; }
footer a { color: inherit; }
@media (max-width: 620px) {
  .page { width: min(100% - 24px, 880px); padding-top: 22px; }
  .card { border-radius: 20px; padding: 22px 18px; }
  .grid { grid-template-columns: 1fr; }
  .app { grid-template-columns: 38px minmax(0, 1fr) auto; padding: 10px; }
  .app img { width: 38px; height: 38px; }
}