:root {
  color-scheme: dark;
  --bg: #101112;
  --surface: #18191a;
  --line: #323333;
  --ink: #f6f3eb;
  --muted: #bdbbb3;
  --accent: #facb71;
  font-family: "Instrument Sans", system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
}
* { box-sizing: border-box; }
body { margin: 0; background: radial-gradient(ellipse 62rem 36rem at 55% 2%, #252015, transparent 80%); }
a { color: inherit; }
a:hover { color: var(--accent); }
button { font: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
img { display: block; max-width: 100%; }
figure { margin: 0; }
.wrap { width: min(1160px, calc(100% - 80px)); margin-inline: auto; }
.skip { position: absolute; left: 1rem; top: -5rem; }
.skip:focus { top: .5rem; }
.top { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 77px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 750; white-space: nowrap; }
.brand img { border-radius: 9px; }
nav { display: flex; align-items: center; gap: clamp(14px, 3vw, 35px); flex-wrap: wrap; }
nav a { color: var(--muted); text-decoration: none; font-size: .88rem; }
.hero { padding: clamp(47px, 7vw, 86px) 0 36px; }
.eyebrow { display: flex; gap: 10px; align-items: center; margin: 0 0 10px; color: var(--accent); font-size: .8rem; font-weight: 700; letter-spacing: .12em; }
.eyebrow span, .display-top i { display: inline-block; background: var(--accent); width: 7px; height: 7px; border-radius: 50%; }
.hero h1 { margin: 0; font-size: clamp(3.65rem, 11.3vw, 9.5rem); font-weight: 810; letter-spacing: -.085em; line-height: .96; }
.hero h1 span { color: var(--accent); }
.intro { font-size: clamp(1rem, 2vw, 1.2rem); line-height: 1.8; color: var(--muted); max-width: 38ch; margin: 21px 0 22px; }
.button { display: inline-flex; align-items: center; gap: 25px; justify-content: space-between; min-height: 46px; padding: 11px 17px; text-decoration: none; font-size: .92rem; border-radius: 7px; font-weight: 720; }
.primary { background: var(--accent); color: #17130b; }
.primary:hover { background: #ffe0a1; color: #17130b; }
.gallery { scroll-margin-top: 18px; }
.display { overflow: hidden; border: 1px solid #484133; background: #080909; border-radius: 13px; }
.display-top, .display figcaption { padding: 12px 16px; color: #ccc7ba; background: #1c1b18; font-size: .78rem; }
.display-top { display: flex; justify-content: space-between; gap: 14px; border-bottom: 1px solid #3c3629; }
.display-top i { margin-inline-end: 5px; }
.display img { width: 100%; aspect-ratio: 2.12; object-fit: contain; }
.display figcaption { border-top: 1px solid #3c3629; }
.choices { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 13px; }
.choices[hidden] { display: none; }
.choices button { cursor: pointer; color: var(--muted); background: transparent; border: 1px solid var(--line); border-radius: 7px; padding: 10px 13px; font-size: .85rem; min-height: 43px; }
.choices button:hover, .choices button[aria-pressed="true"] { color: var(--accent); border-color: #917646; background: #282217; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin-block: 50px 60px; }
.features article { border-top: 1px solid var(--line); padding-top: 18px; }
.features h2 { font-size: 1.14rem; margin: 0 0 8px; }
.features p, .community p, .footer p { color: var(--muted); line-height: 1.75; margin: 0; }
.community { display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: center; padding: clamp(22px, 5vw, 60px); border: 1px solid var(--line); border-radius: 13px; background: var(--surface); }
.community h2 { font-size: clamp(1.8rem, 4vw, 3rem); margin: 0 0 12px; }
.community p { max-width: 32ch; }
.community .button { margin-top: 20px; }
.community .email { margin-top: 8px; font-size: .82rem; }
.wechat { text-align: center; }
.wechat img { width: 212px; height: auto; margin-inline: auto; border-radius: 8px; }
.wechat figcaption { margin-top: 9px; font-size: .87rem; line-height: 1.6; }
.wechat small { color: var(--muted); }
.footer { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; border-top: 1px solid var(--line); margin-top: 45px; padding-block: 20px 30px; font-size: .8rem; }
.legal { width: min(760px, calc(100% - 48px)); margin: 52px auto; line-height: 1.85; }
.legal h1 { font-size: clamp(2.1rem, 6vw, 3.75rem); line-height: 1.2; }
.legal h2 { margin-top: 1.8em; font-size: 1.22rem; }
.legal p, .legal li { color: var(--muted); }
.legal a { color: var(--accent); overflow-wrap: anywhere; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
@media (max-width: 700px) {
  .wrap { width: calc(100% - 36px); }
  .top { gap: 12px; min-height: 68px; }
  .top nav { gap: 12px; justify-content: end; }
  .top nav a { font-size: .76rem; }
  .features { grid-template-columns: 1fr; gap: 19px; margin-block: 34px 42px; }
  .community { grid-template-columns: 1fr; }
  .wechat { justify-self: start; }
  .footer { flex-direction: column; }
}
@media (max-width: 380px) {
  .top { flex-wrap: wrap; padding-block: 12px; }
}