:root {
  --paper: #F2EFE6;
  --ink: #111111;
  --muted: #5d5a52;
  --line: #111111;
  --red: #E5383B;
  --gold: #F0B90B;
  --blue: #2643E9;
  --mint: #3DDC97;
  --soft: #e6e2d6;
  --mono: "IBM Plex Mono", "Courier New", Courier, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.55 var(--mono);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
code { font-family: var(--mono); font-size: .92em; background: var(--soft); padding: 1px 5px; word-break: break-all; }
b { font-weight: 700; }

.bar {
  position: sticky; top: 0; z-index: 10;
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 16px; background: var(--paper); border-bottom: 2px solid var(--line);
}
.logo { font-weight: 700; font-size: 22px; text-decoration: none; letter-spacing: -.5px; }
.bar nav { display: flex; gap: 14px; flex-wrap: wrap; justify-content: flex-end; }
.bar nav a { text-decoration: none; font-size: 14px; }
.bar nav a:hover { text-decoration: underline; }
.bar .lang { padding: 1px 8px; font-size: 13px; border-width: 1.5px; line-height: 1.5; }
html[lang="zh-CN"] body { font-family: var(--mono), "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; }

main { max-width: 1080px; margin: 0 auto; padding: 0 16px; }

.hero { padding: 56px 0 32px; }
.kicker { text-transform: uppercase; letter-spacing: 2px; font-size: 12px; margin: 0 0 18px; color: var(--muted); }
h1 { font-size: clamp(34px, 7vw, 76px); line-height: 1.04; letter-spacing: -2px; margin: 0 0 24px; font-weight: 700; }
h1 .ngmi { text-decoration: line-through; text-decoration-color: var(--red); text-decoration-thickness: .09em; }
h1 .wagmi { background: var(--gold); padding: 0 .12em; }
.lede { font-size: 18px; max-width: 760px; margin: 0 0 32px; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); border: 2px solid var(--line); }
.stats > div { padding: 14px 16px; border-right: 2px solid var(--line); display: flex; flex-direction: column; min-width: 0; }
.stats > div:last-child { border-right: 0; }
.label { font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px; color: var(--muted); }
.value { font-size: clamp(22px, 3.4vw, 34px); font-weight: 700; line-height: 1.2; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sub { font-size: 12px; color: var(--muted); }
.progress { height: 10px; border: 2px solid var(--line); border-top: 0; }
.progress > div { height: 100%; width: 0; background: var(--ink); transition: width .6s; }
.contract { font-size: 13px; color: var(--muted); margin-top: 14px; }
.contract a { text-decoration: none; }

.block { padding: 48px 0; border-top: 2px solid var(--line); }
.block.dark { background: var(--ink); color: var(--paper); margin: 0 -16px; padding: 48px 16px; border-top: 0; }
.block.dark code { background: #2a2a2a; }
.block.dark .muted, .block.dark .label { color: #a9a597; }
h2 { font-size: clamp(24px, 4vw, 36px); margin: 0 0 12px; letter-spacing: -1px; }
h3 { margin: 32px 0 8px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.warn { color: var(--red); font-size: 14px; }

.qty { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 18px; margin: 24px 0 18px; }
.qty-buttons { display: flex; }
button {
  font: inherit; cursor: pointer; background: var(--paper); color: var(--ink);
  border: 2px solid var(--line); padding: 8px 14px;
}
button:hover { background: var(--soft); }
.qty-buttons button { width: 48px; font-weight: 700; margin-left: -2px; }
.qty-buttons button:first-child { margin-left: 0; }
.qty-buttons button.on, .tabs button.on { background: var(--ink); color: var(--paper); }
.cost { font-size: 15px; }

.wallet-check { border: 2px solid var(--line); padding: 10px 14px; margin-bottom: 18px; }
.wallet-check summary { cursor: pointer; font-size: 14px; }
.wallet-check .row { display: flex; gap: 8px; margin-top: 12px; }
.wallet-check input {
  flex: 1; min-width: 0; font: 14px var(--mono); padding: 8px 10px; border: 2px solid var(--line); background: #fff; color: var(--ink);
}
#w-result { font-size: 14px; margin: 10px 0 4px; }
.ok { color: #0a7a3f; font-weight: 700; }
.no { color: var(--red); font-weight: 700; }

.tabs { display: flex; flex-wrap: wrap; }
.tabs button { margin-right: -2px; margin-bottom: -2px; font-size: 14px; }
.tabs button em { font-style: normal; font-size: 11px; background: var(--gold); color: var(--ink); padding: 1px 5px; margin-left: 4px; }
.tab { display: none; border: 2px solid var(--line); padding: 16px; }
.tab.on { display: block; }
.steps { padding-left: 22px; margin: 0 0 12px; }
.steps li { margin-bottom: 6px; }

.prompt { position: relative; border: 2px solid var(--line); background: #fff; color: var(--ink); }
.prompt pre {
  margin: 0; padding: 14px; font: 13px/1.6 var(--mono);
  white-space: pre-wrap; word-break: break-word; max-height: 360px; overflow: auto;
}
.prompt .copy {
  display: block; width: 100%; border: 0; border-top: 2px solid var(--line);
  background: var(--ink); color: var(--paper); padding: 10px 14px; font-weight: 700;
}
.prompt .copy:hover { background: #333; }

.forge-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.facts { padding-left: 18px; }
.facts li { margin-bottom: 6px; }
.block.dark button.big { background: var(--gold); color: var(--ink); border-color: var(--gold); font-weight: 700; width: 100%; padding: 12px; }
.block.dark .label { display: block; margin: 0 0 8px; }
.block.dark .prompt { margin-bottom: 20px; }

.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin-top: 18px; }
.gallery figure { margin: 0; border: 2px solid var(--line); background: #fff; }
.gallery img { width: 100%; display: block; aspect-ratio: 1; }
.gallery figcaption { font-size: 12px; padding: 6px 8px; border-top: 2px solid var(--line); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.feed { list-style: none; padding: 0; margin: 0; font-size: 14px; }
.feed li { padding: 6px 0; border-bottom: 1px solid var(--soft); }
.feed a { text-decoration: none; color: var(--muted); }

.rules { width: 100%; border-collapse: collapse; border: 2px solid var(--line); font-size: 14px; }
.rules th, .rules td { text-align: left; vertical-align: top; padding: 10px 14px; border-bottom: 1px solid var(--line); }
.rules th { width: 170px; text-transform: uppercase; font-size: 12px; letter-spacing: 1px; background: var(--soft); }

.faq details { border-bottom: 1px solid var(--line); padding: 12px 0; }
.faq summary { cursor: pointer; font-weight: 700; }
.faq p { margin: 10px 0 0; }

footer { max-width: 1080px; margin: 0 auto; padding: 32px 16px 48px; font-size: 13px; color: var(--muted); border-top: 2px solid var(--line); }

#toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%) translateY(120px);
  background: var(--ink); color: var(--paper); padding: 10px 18px; font-size: 14px; transition: transform .25s;
}
#toast.show { transform: translateX(-50%) translateY(0); }

@media (max-width: 760px) {
  .stats { grid-template-columns: 1fr 1fr; }
  .stats > div:nth-child(2) { border-right: 0; }
  .stats > div:nth-child(-n+2) { border-bottom: 2px solid var(--line); }
  .forge-grid { grid-template-columns: 1fr; }
  .rules th { width: 110px; }
  .bar nav { gap: 10px; }
  .hero { padding-top: 36px; }
}

.easy { margin: 22px 0 8px; }
.easy .label { display: block; margin-bottom: 8px; }
.agents-hint { font-size: 13px; color: var(--muted); margin: 14px 0 0; }