:root {
  color-scheme: dark;
  --ink: #f8f7ff;
  --muted: #b9b5ce;
  --panel: rgba(25, 20, 46, .76);
  --line: rgba(191, 174, 255, .2);
  --violet: #9c72ff;
  --cyan: #53e3d7;
  --gold: #ffca62;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% 0%, rgba(98, 64, 190, .35), transparent 36rem),
    radial-gradient(circle at 90% 18%, rgba(28, 157, 168, .22), transparent 30rem),
    #090711;
  font: 16px/1.68 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: var(--cyan); }
a:hover { color: #9dfff7; }

.shell { width: min(940px, calc(100% - 32px)); margin: 0 auto; }

header {
  position: sticky;
  top: 0;
  z-index: 5;
  border-bottom: 1px solid var(--line);
  background: rgba(9, 7, 17, .84);
  backdrop-filter: blur(18px);
}

nav {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  color: var(--ink);
  text-decoration: none;
  font-weight: 900;
  letter-spacing: .08em;
}

.brand span { color: var(--gold); }

.links { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.links a { color: var(--muted); text-decoration: none; font-size: .92rem; }
.links a[aria-current="page"], .links a:hover { color: var(--ink); }

main { padding: 72px 0 88px; }

.hero { margin-bottom: 34px; }
.eyebrow { color: var(--gold); font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
h1 { max-width: 780px; margin: 8px 0 14px; font-size: clamp(2.3rem, 7vw, 5.25rem); line-height: .98; letter-spacing: -.045em; }
.lede { max-width: 720px; margin: 0; color: var(--muted); font-size: 1.12rem; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card, article {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--panel);
  box-shadow: 0 24px 70px rgba(0, 0, 0, .2);
}
.card { display: block; padding: 24px; color: var(--ink); text-decoration: none; }
.card:hover { transform: translateY(-2px); border-color: rgba(83, 227, 215, .5); }
.card h2 { margin: 8px 0 5px; font-size: 1.2rem; }
.card p { margin: 0; color: var(--muted); font-size: .94rem; }
.icon { font-size: 1.8rem; }

article { padding: clamp(22px, 5vw, 54px); }
article h2 { margin: 2.2em 0 .35em; font-size: 1.35rem; }
article h2:first-child { margin-top: 0; }
article p, article li { color: #d5d1e3; }
article strong { color: var(--ink); }
article ul { padding-left: 1.35rem; }
.meta { margin: 0 0 28px; color: var(--muted); }
.notice { padding: 16px 18px; border-left: 3px solid var(--violet); background: rgba(156, 114, 255, .09); }
.cn { color: var(--muted); font-size: .94rem; }

footer { padding: 24px 0 42px; color: var(--muted); font-size: .86rem; border-top: 1px solid var(--line); }

@media (max-width: 700px) {
  nav { align-items: flex-start; flex-direction: column; padding: 14px 0; }
  .grid { grid-template-columns: 1fr; }
  main { padding-top: 46px; }
  h1 { font-size: 3rem; }
}