:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #0d1113;
  color: #d7dde2;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-height: 100vh; background: var(--bg); color: var(--text); }
a { color: inherit; text-decoration: none; }
.skip { position: absolute; left: -999px; top: 1rem; }
.skip:focus { left: 1rem; z-index: 10; padding: .75rem 1rem; background: var(--panel); border: 1px solid var(--border); }
.theme-crawling {
  --bg: #0d1113;
  --bg-soft: #13191d;
  --panel: #171d22;
  --panel-strong: #1d252b;
  --border: #2b353d;
  --text: #d7dde2;
  --muted: #8b98a5;
  --faint: #5d6a75;
  --accent: #8fb3c9;
  --accent-2: #84c391;
  --warn: #d6b56d;
}
.theme-chunchun {
  --bg: #090608;
  --bg-soft: #130b10;
  --panel: #1a0f14;
  --panel-strong: #24131a;
  --border: #3a2028;
  --text: #f1e7df;
  --muted: #b89f94;
  --faint: #78625c;
  --accent: #d8a85b;
  --accent-2: #9d2235;
  --warn: #dfb86d;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .36;
  background:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, black, transparent 78%);
}
.site-header, main, .site-footer { position: relative; z-index: 1; }
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  max-width: 1180px;
  margin: 0 auto;
  padding: 1.25rem 1.25rem;
}
.brand { display: inline-flex; align-items: center; gap: .8rem; min-width: 15rem; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--accent);
  border-radius: 7px;
  overflow: hidden;
}
.brand-mark svg { width: 1.55rem; height: 1.55rem; fill: none; stroke: currentColor; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.brand-mark img { width: 100%; height: 100%; object-fit: cover; display: block; }
.brand strong { display: block; color: var(--text); line-height: 1.1; }
.brand small { display: block; color: var(--muted); margin-top: .2rem; font-size: .77rem; }
nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .45rem; }
nav a {
  padding: .48rem .65rem;
  border: 1px solid transparent;
  border-radius: 7px;
  color: var(--muted);
  font-size: .9rem;
}
nav a:hover, nav a.active { color: var(--text); border-color: var(--border); background: color-mix(in srgb, var(--panel) 86%, transparent); }
main { max-width: 1180px; margin: 0 auto; padding: 2rem 1.25rem 3rem; }
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(18rem, .8fr);
  gap: 1rem;
  align-items: stretch;
  min-height: 28rem;
}
.hero-copy, .hero-panel, .page-title, .card, .list-panel, .api-panel, .long-article, .status-board {
  border: 1px solid var(--border);
  background: linear-gradient(180deg, color-mix(in srgb, var(--panel-strong) 90%, transparent), color-mix(in srgb, var(--panel) 95%, transparent));
  border-radius: 8px;
}
.hero-copy { padding: clamp(2rem, 6vw, 4.5rem); display: flex; flex-direction: column; justify-content: center; }
.hero-logo {
  width: clamp(4.5rem, 10vw, 7rem);
  height: clamp(4.5rem, 10vw, 7rem);
  object-fit: cover;
  border-radius: 14px;
  border: 1px solid var(--border);
  margin-bottom: 1.25rem;
  box-shadow: 0 1.2rem 3rem color-mix(in srgb, var(--bg) 72%, transparent);
}
.eyebrow { margin: 0 0 .9rem; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .76rem; text-transform: uppercase; letter-spacing: .08em; }
h1, h2, h3, p { overflow-wrap: anywhere; }
h1 { margin: 0; max-width: 12ch; font-size: clamp(2.4rem, 5vw, 5.6rem); line-height: .95; letter-spacing: 0; }
.theme-chunchun h1 { font-family: Georgia, "Times New Roman", serif; font-weight: 700; }
.lede { max-width: 42rem; margin: 1.4rem 0 0; color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.3rem); line-height: 1.6; }
.actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }
.button { padding: .78rem 1rem; border: 1px solid var(--border); border-radius: 7px; background: var(--panel-strong); color: var(--text); font-weight: 700; }
.button:first-child { border-color: color-mix(in srgb, var(--accent) 58%, var(--border)); color: var(--accent); }
.hero-panel { padding: 1.25rem; display: flex; flex-direction: column; justify-content: space-between; min-height: 100%; }
.panel-visual { display: grid; place-items: center; flex: 1; color: var(--accent); min-height: 16rem; }
.panel-visual > * { grid-area: 1 / 1; }
.panel-visual .orbit-mark { width: min(96%, 24rem); max-height: 20rem; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; opacity: .22; }
.mascot-image { width: min(88%, 20rem); max-height: 20rem; object-fit: contain; filter: drop-shadow(0 1.5rem 2.4rem color-mix(in srgb, var(--bg) 72%, transparent)); }
.meta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .65rem;
  margin: 0;
}
.meta-grid div, .card dl div {
  padding: .75rem;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: color-mix(in srgb, var(--bg-soft) 80%, transparent);
}
dt { color: var(--faint); font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; }
dd { margin: .2rem 0 0; color: var(--text); }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr)); gap: .85rem; margin-top: 1rem; }
.card { padding: 1rem; min-height: 12.5rem; }
.card-link { position: relative; display: flex; flex-direction: column; transition: transform .14s ease, border-color .14s ease, background .14s ease; }
.card-link::after { content: "Open"; position: absolute; right: .85rem; top: .8rem; color: var(--faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .68rem; text-transform: uppercase; letter-spacing: .08em; }
.card-link:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); background: linear-gradient(180deg, color-mix(in srgb, var(--panel-strong) 96%, var(--accent) 4%), color-mix(in srgb, var(--panel) 96%, var(--accent) 4%)); }
.card-link:focus-visible, .list-panel a:focus-visible, .api-panel a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.card-kicker { margin: 0 0 .75rem; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .74rem; text-transform: uppercase; letter-spacing: .08em; }
.card h3 { margin: 0; padding-right: 3rem; font-size: 1.16rem; line-height: 1.22; }
.card p { color: var(--muted); line-height: 1.55; font-size: .96rem; }
.card dl { display: flex; flex-wrap: wrap; gap: .45rem; margin: auto 0 0; }
.card dl div { padding: .42rem .55rem; }
.card dl dt { font-size: .66rem; }
.card dl dd { font-size: .86rem; }
.page-title { display: flex; align-items: center; justify-content: space-between; gap: 1.25rem; padding: clamp(1.5rem, 5vw, 3.25rem); margin-bottom: 1rem; overflow: hidden; }
.page-title > div { min-width: 0; flex: 1 1 auto; }
.page-title h1 { font-size: clamp(2rem, 4vw, 4rem); max-width: min(100%, 20ch); }
.page-title p { max-width: 55rem; color: var(--muted); line-height: 1.7; font-size: 1.08rem; }
.page-mascot { width: clamp(7rem, 22vw, 15rem); max-height: 15rem; object-fit: contain; opacity: .9; filter: drop-shadow(0 1.2rem 2.4rem color-mix(in srgb, var(--bg) 70%, transparent)); }
.list-panel { padding: .5rem; }
.list-panel article, .list-panel a { display: block; padding: 1.2rem; border-bottom: 1px solid var(--border); border-radius: 6px; }
.list-panel article:last-child, .list-panel a:last-child { border-bottom: 0; }
.list-panel a:hover { background: color-mix(in srgb, var(--panel-strong) 76%, transparent); outline: 1px solid color-mix(in srgb, var(--accent) 42%, transparent); }
.list-panel span { color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; }
.list-panel h3 { margin: .45rem 0; }
.list-panel p { margin: 0; max-width: 58rem; color: var(--muted); line-height: 1.65; }
.article-stack { display: contents; }
.long-article { display: none; position: relative; padding: clamp(1.3rem, 3vw, 2rem); scroll-margin-top: 1rem; }
.long-article:target {
  display: block;
  position: fixed;
  z-index: 25;
  inset: max(1rem, 7vh) max(1rem, calc((100vw - 58rem) / 2));
  overflow: auto;
  background: linear-gradient(180deg, color-mix(in srgb, var(--panel-strong) 98%, black 2%), color-mix(in srgb, var(--panel) 98%, black 2%));
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  box-shadow: 0 2rem 7rem color-mix(in srgb, black 72%, transparent);
}
.long-article:target::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background: color-mix(in srgb, var(--bg) 94%, black 6%);
}
.article-close {
  display: none;
  position: absolute;
  top: .75rem;
  right: .75rem;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text);
  background: var(--bg-soft);
  font-size: 1.35rem;
  line-height: 1;
}
.long-article:target .article-close { display: grid; }
.article-meta { display: flex; align-items: center; flex-wrap: wrap; gap: .75rem; margin-bottom: .75rem; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .74rem; text-transform: uppercase; letter-spacing: .08em; }
.article-meta time { color: var(--faint); }
.long-article h2 { margin: 0 2.5rem 1rem 0; font-size: clamp(1.6rem, 3vw, 2.5rem); line-height: 1.08; letter-spacing: 0; }
.theme-chunchun .long-article h2 { font-family: Georgia, "Times New Roman", serif; }
.long-article p { max-width: 72rem; color: var(--muted); font-size: 1.03rem; line-height: 1.75; }
.article-links { display: flex; flex-wrap: wrap; gap: .65rem; margin-top: 1.25rem; }
.article-links a { padding: .55rem .75rem; border: 1px solid var(--border); border-radius: 7px; color: var(--accent); background: var(--bg-soft); font-weight: 700; }
.article-links a:hover { border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); background: var(--panel-strong); }
.api-panel, .docs-panel { padding: 1.2rem; }
.docs-panel { margin-top: 1rem; border: 1px solid var(--border); border-radius: 8px; background: linear-gradient(180deg, color-mix(in srgb, var(--panel-strong) 90%, transparent), color-mix(in srgb, var(--panel) 95%, transparent)); }
.api-panel h2, .docs-panel h2 { margin-top: 0; }
.section-lede { max-width: 54rem; color: var(--muted); line-height: 1.6; }
.api-panel > div { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; }
.api-panel a { display: flex; flex-direction: column; gap: .35rem; padding: .9rem; border: 1px solid var(--border); border-radius: 7px; background: var(--bg-soft); }
.api-panel a:hover { border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); background: var(--panel-strong); }
.api-panel em { align-self: flex-start; font-style: normal; color: var(--bg); background: var(--accent); border-radius: 5px; padding: .15rem .35rem; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .68rem; font-weight: 800; }
code { color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.api-panel span { color: var(--muted); }
.status-board { padding: clamp(1.1rem, 3vw, 1.6rem); background: linear-gradient(180deg, color-mix(in srgb, var(--panel-strong) 94%, transparent), color-mix(in srgb, var(--panel) 96%, transparent)); }
.status-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .75rem; }
.status-grid .status-item { position: relative; display: block; overflow: hidden; border: 1px solid var(--border); border-radius: 7px; background: color-mix(in srgb, var(--bg-soft) 88%, transparent); padding: 1rem; min-height: 9rem; }
.status-grid .status-item::before { content: ""; position: absolute; inset: 0 auto 0 0; width: .22rem; background: var(--accent); opacity: .85; }
.status-grid span { color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .74rem; text-transform: uppercase; letter-spacing: .08em; }
.status-grid strong { display: block; margin-top: .6rem; color: var(--text); font-size: clamp(1.35rem, 2.6vw, 2rem); line-height: 1.05; }
.status-grid p { color: var(--muted); line-height: 1.5; }
.status-notes { margin-top: 1rem; border-top: 1px solid var(--border); padding-top: 1rem; }
.status-notes h2 { margin-top: 0; }
.status-notes ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .6rem; }
.status-notes li div { display: flex; justify-content: space-between; gap: 1rem; border: 1px solid var(--border); border-radius: 7px; padding: .75rem; background: color-mix(in srgb, var(--bg-soft) 78%, transparent); }
.status-notes span { color: var(--muted); text-align: right; }
.docs-panel p { color: var(--muted); line-height: 1.65; max-width: 64rem; }
.endpoint-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; margin: 1rem 0; }
.endpoint-grid article { border: 1px solid var(--border); border-radius: 7px; background: var(--bg-soft); padding: .95rem; }
.endpoint-grid span { color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .75rem; letter-spacing: .08em; }
.endpoint-grid h3 { margin: .4rem 0; }
pre { overflow-x: auto; margin: 1rem 0 0; padding: 1rem; border: 1px solid var(--border); border-radius: 7px; background: color-mix(in srgb, var(--bg) 88%, black); }
.fineprint { color: var(--faint); font-size: .9rem; }
.fineprint a { color: var(--accent); border-bottom: 1px solid color-mix(in srgb, var(--accent) 38%, transparent); }
.contact-line a { color: var(--accent); border-bottom: 1px solid color-mix(in srgb, var(--accent) 45%, transparent); }
.site-footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: 1.3rem 1.25rem 2rem;
  border-top: 1px solid var(--border);
}
.site-footer p { margin: .35rem 0; }
.contact-line { color: var(--muted); font-weight: 700; }
@media (max-width: 880px) {
  .site-header { align-items: flex-start; flex-direction: column; }
  nav { justify-content: flex-start; }
  .hero { grid-template-columns: 1fr; }
  .card-grid, .api-panel > div, .endpoint-grid, .status-grid { grid-template-columns: 1fr; }
  .page-title { align-items: flex-start; }
  .page-mascot { width: 8rem; }
}
@media (max-width: 520px) {
  main { padding-top: 1rem; }
  .meta-grid { grid-template-columns: 1fr; }
  .hero-copy { padding: 1.45rem; }
  h1 { font-size: 2.3rem; }
  .page-title { flex-direction: column; }
  .page-mascot { align-self: center; width: 11rem; }
  .status-notes li div { display: grid; }
  .status-notes span { text-align: left; }
}