:root {
  color-scheme: light;
  --ink: #1c2424;
  --muted: #64706e;
  --line: #dce2df;
  --green: #bbf4d6;
  font-family: Inter, "Segoe UI", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  color: var(--ink);
  background: #f4f6f4;
}
* { box-sizing: border-box; letter-spacing: 0; }
body { margin: 0; min-height: 100vh; min-height: 100svh; display: flex; flex-direction: column; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button, a, input, select { -webkit-tap-highlight-color: transparent; }
button, select { cursor: pointer; }
svg { width: 18px; height: 18px; flex: none; stroke-width: 1.7; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid #d9755f; outline-offset: 4px; }
.container { width: min(1560px, calc(100% - clamp(36px, 10%, 160px))); margin-inline: auto; }
.topbar { flex: none; background: #fff; border-bottom: 1px solid var(--line); }
.topbar-inner { width: 100%; max-width: none; margin: 0; min-height: 84px; display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 14px 24px; }
.brand { font-size: 18px; font-weight: 650; white-space: nowrap; }
.header-actions { display: flex; align-items: center; gap: 24px; flex: none; }
.brand-image { display: block; width: 44px; height: 44px; object-fit: contain; }
.language { display: flex; align-items: center; gap: 7px; }
.language select { max-width: 94px; border: 0; background: transparent; color: var(--ink); min-height: 40px; padding: 6px 2px; }
main { flex: 1; display: grid; grid-template-rows: minmax(300px, 1fr) minmax(260px, .85fr); }
.intro { display: flex; align-items: center; background: #171b1b; color: #f8faf8; }
.intro > .container { padding-block: clamp(36px, 5vh, 76px); }
.intro-heading { margin-bottom: 32px; }
h1 { font-size: 38px; line-height: 1.25; font-weight: 620; margin: 0; }
.title-dot { color: var(--green); }
.intro p { color: #bcc8c1; font-size: 16px; line-height: 1.8; margin: 16px 0 0; }
.repository-bar { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 16px; align-items: stretch; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 52px; padding: 13px 22px; border: 1px solid transparent; border-radius: 5px; font-size: 14px; font-weight: 650; white-space: nowrap; transition: background .15s; }
.primary { background: var(--green); color: #123c2b; }
.primary:hover { background: #d6fbe7; }
.primary svg:last-child { margin-left: 16px; }
.address { display: flex; align-items: center; gap: 12px; min-width: 0; min-height: 52px; padding: 0 7px 0 17px; background: #242c29; border: 1px solid #404943; border-radius: 5px; color: #a8b8ae; }
.address input { flex: 1; width: 0; min-width: 0; padding: 12px 0; border: 0; background: transparent; color: #e4ebe7; font-family: Consolas, monospace; font-size: 13px; outline-offset: 1px; }
.icon-button { display: grid; place-items: center; width: 38px; height: 38px; flex: none; border: 0; border-radius: 4px; background: transparent; color: inherit; }
.icon-button:hover { background: #ffffff16; }
.status { min-height: 28px; font-size: 12px; line-height: 1.5; padding-top: 9px; color: var(--green); }
.capabilities { display: flex; flex-direction: column; justify-content: center; padding-block: clamp(32px, 5vh, 64px); }
.capabilities h2 { margin: 0 0 14px; font-size: 14px; font-weight: 500; color: var(--muted); }
.feature-summary { margin: 0; }
.feature-summary > div { display: grid; grid-template-columns: minmax(190px, 23%) minmax(0, 1fr) 180px; gap: 24px; align-items: center; padding: 24px 0; border-bottom: 1px solid var(--line); }
.feature-summary dt { display: flex; align-items: center; gap: 12px; font-size: 18px; font-weight: 600; }
.feature-summary dt svg { align-self: center; color: #398065; }
.feature-summary > div + div dt svg { color: #b65e48; }
.feature-summary dd { margin: 0; font-size: 15px; line-height: 1.85; color: var(--muted); overflow-wrap: anywhere; }
.feature-download { justify-self: end; display: flex; flex-direction: column; align-items: center; gap: 5px; }
.feature-download[hidden] { display: none; }
.offline-download { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 42px; min-width: 152px; padding: 8px 15px; border: 1px solid #c9d4cd; border-radius: 5px; color: #24533f; font-size: 14px; font-weight: 600; white-space: nowrap; transition: background .15s, border-color .15s; }
.offline-download:hover { background: #e5efe8; border-color: #89a995; }
@media (max-width: 900px) {
  .repository-bar { grid-template-columns: 1fr; gap: 14px; }
  .primary { justify-content: flex-start; }
  .primary svg:last-child { margin-left: auto; }
  .feature-summary > div { grid-template-columns: 170px minmax(0, 1fr); gap: 14px 20px; }
  .feature-download { grid-column: 2; justify-self: start; align-items: flex-start; }
}
@media (max-width: 600px) {
  .topbar-inner { min-height: 72px; padding: 12px 16px; gap: 12px; }
  .header-actions { gap: 12px; }
  .brand-image { width: 36px; height: 36px; }
  .language svg { display: none; }
  .language select { max-width: 78px; }
  main { grid-template-rows: auto 1fr; }
  .intro > .container { padding-block: 36px 20px; }
  .intro-heading { margin-bottom: 26px; }
  .address { padding-left: 10px; gap: 6px; }
  .address input { font-size: 11px; }
  .capabilities { justify-content: flex-start; padding-block: 32px; }
  .feature-summary > div { grid-template-columns: 1fr; gap: 10px; padding: 23px 0; }
  .feature-summary .feature-download { grid-column: 1; margin-top: 4px; }
}
@media (max-height: 600px) and (min-width: 601px) {
  .intro > .container { padding-block: 30px 18px; }
  .capabilities { padding-block: 26px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }