:root {
  --ink: #f4f7ff;
  --muted: #9ba9c2;
  --space: #050811;
  --panel: rgba(14, 21, 37, .78);
  --line: rgba(149, 180, 222, .2);
  --cyan: #91e9ff;
  --gold: #f7c978;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 73% 15%, rgba(53, 108, 160, .2), transparent 27rem),
    radial-gradient(circle at 7% 68%, rgba(89, 55, 132, .14), transparent 25rem),
    var(--space);
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
}

.stars, .stars::before, .stars::after {
  position: fixed;
  inset: 0;
  pointer-events: none;
  content: "";
  background-image:
    radial-gradient(circle, rgba(255,255,255,.85) 0 1px, transparent 1.5px),
    radial-gradient(circle, rgba(145,233,255,.65) 0 1px, transparent 1.4px);
  background-size: 83px 83px, 137px 137px;
  background-position: 11px 19px, 43px 67px;
  opacity: .3;
  z-index: -2;
}
.stars::before { transform: scale(1.2) rotate(8deg); opacity: .23; }
.stars::after { transform: scale(.8) rotate(-7deg); opacity: .18; }

a { color: inherit; text-decoration: none; }
.topbar {
  width: min(1240px, calc(100% - 48px));
  height: 86px;
  margin: auto;
  display: flex;
  align-items: center;
  gap: 42px;
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; letter-spacing: .12em; }
.brand-mark { display: grid; place-items: center; width: 36px; height: 36px; color: #08101d; background: var(--gold); clip-path: polygon(50% 0, 65% 35%, 100% 50%, 65% 65%, 50% 100%, 35% 65%, 0 50%, 35% 35%); }
nav { display: flex; gap: 28px; margin-left: auto; color: var(--muted); font-size: 14px; }
nav a:hover { color: var(--cyan); }
.fan-badge { padding: 8px 12px; border: 1px solid rgba(247,201,120,.45); color: var(--gold); font: 11px ui-monospace, monospace; letter-spacing: .12em; }

main { width: min(1240px, calc(100% - 48px)); margin: auto; }
.hero { min-height: 690px; display: grid; grid-template-columns: 1.04fr .96fr; align-items: center; gap: 44px; }
.eyebrow, .section-heading > p { color: var(--cyan); font: 12px ui-monospace, monospace; letter-spacing: .24em; }
h1 { margin: 22px 0 24px; font-size: clamp(46px, 6vw, 82px); line-height: 1.08; letter-spacing: -.04em; }
h1 span { color: transparent; -webkit-text-stroke: 1px rgba(244,247,255,.7); }
.lead { max-width: 620px; color: var(--muted); line-height: 1.9; font-size: 17px; }
.actions { display: flex; gap: 14px; margin-top: 34px; }
.actions a { padding: 14px 25px; font-weight: 700; font-size: 14px; transition: .25s ease; }
.primary { color: #08101d; background: linear-gradient(120deg, var(--gold), #fff0bd); }
.primary:hover { box-shadow: 0 0 34px rgba(247,201,120,.28); transform: translateY(-2px); }
.secondary { border: 1px solid var(--line); background: rgba(255,255,255,.03); }
.secondary:hover { border-color: var(--cyan); color: var(--cyan); }
.notice { margin-top: 26px; color: #76849d; font-size: 12px; }
.notice strong { color: var(--gold); }

.orbit-scene { position: relative; aspect-ratio: 1; display: grid; place-items: center; }
.planet { width: 40%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle at 35% 30%, #f8ead5 0 4%, #bd9a75 22%, #496381 52%, #0c1d31 73%); box-shadow: inset -24px -18px 35px rgba(0,0,0,.55), 0 0 80px rgba(98,176,215,.22); position: relative; }
.planet::after { content: ""; position: absolute; width: 170%; height: 36%; left: -35%; top: 35%; border: 2px solid rgba(190,225,239,.45); border-radius: 50%; transform: rotate(-17deg); box-shadow: 0 0 20px rgba(145,233,255,.15); }
.planet span { position: absolute; inset: 19%; border: 1px dashed rgba(255,255,255,.17); border-radius: 50%; }
.orbit { position: absolute; border: 1px solid rgba(145,233,255,.16); border-radius: 50%; }
.orbit-one { inset: 11%; transform: rotate(24deg); }
.orbit-two { inset: 3% 18%; transform: rotate(-31deg); }
.train-light { position: absolute; width: 12px; height: 12px; left: 17%; top: 29%; border-radius: 50%; background: white; box-shadow: 0 0 10px white, 0 0 35px var(--cyan), -70px 30px 45px 8px rgba(145,233,255,.22); animation: drift 5s ease-in-out infinite; }
.coordinate { position: absolute; right: 5%; bottom: 14%; color: #63738b; font: 11px/1.7 ui-monospace, monospace; }
@keyframes drift { 50% { transform: translate(14px,-9px); opacity: .68; } }

.ticker { display: grid; grid-template-columns: repeat(4,1fr); border: 1px solid var(--line); background: rgba(8,15,28,.8); }
.ticker span { padding: 15px 20px; color: #7f8ca2; border-right: 1px solid var(--line); font: 11px ui-monospace, monospace; }
.ticker span:first-child { color: #79e9bd; }
.ticker span:last-child { border: 0; }

.archive { padding: 130px 0; }
.section-heading { display: grid; grid-template-columns: 1fr 1fr; align-items: end; margin-bottom: 35px; }
.section-heading p { grid-column: 1 / -1; }
h2 { margin: 8px 0; font-size: clamp(30px, 4vw, 50px); }
.section-heading > span { justify-self: end; color: var(--muted); font-size: 13px; }
.cards { display: grid; grid-template-columns: 1.25fr .875fr .875fr; gap: 16px; }
.card { position: relative; min-height: 450px; border: 1px solid var(--line); background: var(--panel); overflow: hidden; transition: .3s ease; }
.card:hover { transform: translateY(-6px); border-color: rgba(145,233,255,.45); }
.card-index { position: absolute; right: 17px; top: 14px; z-index: 2; font: 12px ui-monospace, monospace; color: rgba(255,255,255,.4); }
.card-art { height: 55%; display: grid; place-items: center; position: relative; overflow: hidden; }
.card-art::before, .card-art::after { content: ""; position: absolute; border: 1px solid rgba(255,255,255,.25); border-radius: 50%; inset: 17%; }
.card-art::after { inset: 28% -20%; transform: rotate(25deg); }
.card-art span { font-size: 48px; z-index: 1; }
.amber { background: radial-gradient(circle at 40% 40%, #b48449, #281c19 58%, #0d1018); color: #ffe8aa; }
.blue { background: radial-gradient(circle at 58% 37%, #497f9a, #15243b 56%, #0d1018); color: #bcefff; }
.violet { background: radial-gradient(circle at 48% 42%, #685786, #211d36 54%, #0d1018); color: #e2cfff; }
.card-body { padding: 24px; }
.tag { color: var(--gold); font-size: 11px; letter-spacing: .15em; }
.card h3 { margin: 10px 0; font-size: 22px; line-height: 1.45; }
.card p:last-child { color: var(--muted); font-size: 14px; line-height: 1.8; }

.signal { min-height: 520px; padding: 70px; border: 1px solid var(--line); display: grid; grid-template-columns: 1fr 380px; align-items: center; background: linear-gradient(120deg, rgba(15,28,49,.94), rgba(12,12,25,.88)); overflow: hidden; position: relative; }
.signal::before { content: ""; position: absolute; inset: 0; background: linear-gradient(rgba(145,233,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(145,233,255,.04) 1px, transparent 1px); background-size: 32px 32px; mask-image: linear-gradient(90deg, transparent, black); }
.signal-copy { position: relative; z-index: 1; max-width: 590px; }
.signal-copy > p:not(.eyebrow) { color: var(--muted); line-height: 1.8; }
.signal-data { display: flex; gap: 45px; margin-top: 35px; }
.signal-data div { display: flex; flex-direction: column; }
.signal-data strong { font: 30px ui-monospace, monospace; color: var(--cyan); }
.signal-data span { margin-top: 5px; color: #718098; font-size: 11px; }
.scanner { position: relative; width: 260px; aspect-ratio: 1; justify-self: center; border: 0; border-radius: 50%; color: var(--ink); background: transparent; cursor: pointer; }
.scanner::before, .scanner::after, .scanner-ring { content: ""; position: absolute; border: 1px solid rgba(145,233,255,.35); border-radius: 50%; }
.scanner::before { inset: 0; }
.scanner::after { inset: 18%; border-style: dashed; animation: spin 14s linear infinite; }
.scanner-ring { inset: 34%; box-shadow: 0 0 35px rgba(145,233,255,.15); }
.scanner-core { position: absolute; inset: 40%; display: grid; place-items: center; border-radius: 50%; background: var(--cyan); color: #07111d; font-weight: 800; font-size: 12px; }
.scanner.active::before { animation: pulse 1.8s ease-out infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 80%,100% { transform: scale(1.25); opacity: 0; } }

.about { padding: 150px 6%; display: grid; grid-template-columns: 240px 1fr; align-items: center; gap: 60px; }
.about-number { font: 190px/.8 Georgia, serif; color: transparent; -webkit-text-stroke: 1px rgba(247,201,120,.4); }
.about p:last-child { max-width: 730px; color: var(--muted); line-height: 2; }
footer { width: min(1240px, calc(100% - 48px)); margin: auto; padding: 30px 0 40px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; color: #66738a; font: 11px ui-monospace, monospace; }

@media (max-width: 850px) {
  .topbar { width: min(100% - 28px, 1240px); height: 72px; gap: 12px; }
  nav { display: none; }
  .fan-badge { margin-left: auto; font-size: 9px; }
  main { width: min(100% - 28px, 1240px); }
  .hero { grid-template-columns: 1fr; padding: 80px 0 40px; }
  .orbit-scene { margin-top: -20px; }
  .ticker { grid-template-columns: 1fr 1fr; }
  .ticker span:nth-child(2) { border-right: 0; }
  .cards { grid-template-columns: 1fr; }
  .card { min-height: 410px; }
  .section-heading { display: block; }
  .section-heading > span { display: block; margin-top: 12px; }
  .signal { padding: 50px 24px; grid-template-columns: 1fr; }
  .scanner { width: 220px; margin-top: 45px; }
  .signal-data { gap: 25px; }
  .about { padding: 110px 0; grid-template-columns: 1fr; gap: 25px; }
  .about-number { font-size: 110px; }
  footer { width: min(100% - 28px, 1240px); flex-direction: column; gap: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}