:root {
  --blue: #007dc6;
  --blue-dark: #00629c;
  --orange: #ff7d26;
  --text: #313131;
  --muted: #666666;
  --line: #e6e6e6;
  --bg: #f7f8fa;
  --card: #ffffff;
  --ok: #2e7d32;
  --warn: #9c1c10;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(17, 24, 39, 0.06);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", "PT Sans", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
}
img { max-width: 100%; height: auto; }
a { color: var(--blue); }
.wrap { width: min(920px, calc(100% - 32px)); margin: 0 auto; }
header {
  background: var(--card);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand img { height: 56px; width: 56px; }
.product {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.product span { color: var(--blue); }
.hero, .card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  margin: 24px 0;
}
.hero h1 { margin: 0 0 8px; font-size: 32px; }
.lead { color: var(--muted); font-size: 18px; margin: 0 0 22px; }
.cta {
  display: inline-block;
  background: var(--blue);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 18px;
  padding: 14px 22px;
  border-radius: 12px;
}
.cta:hover { background: var(--blue-dark); }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.cta-secondary {
  background: #fff;
  color: var(--blue);
  border: 2px solid var(--blue);
}
.cta-secondary:hover { background: #eef7fc; }
.platform { margin-top: 28px; padding-top: 8px; border-top: 1px solid var(--line); }
.platform h2 { font-size: 20px; margin-bottom: 8px; }
.meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-top: 22px;
}
.meta div {
  background: var(--bg);
  border-radius: 12px;
  padding: 12px 14px;
}
.meta b { display: block; font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.sha { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12px; word-break: break-all; }
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
  background: var(--bg);
  padding: 2px 6px;
  border-radius: 6px;
  word-break: break-all;
}
pre {
  background: var(--bg);
  border-radius: 12px;
  padding: 14px 16px;
  overflow-x: auto;
}
pre code {
  padding: 0;
  background: none;
}
ol { padding-left: 20px; }
li { margin: 8px 0; }
.warn {
  background: #fff6f4;
  border: 1px solid #f0d0cc;
  color: var(--warn);
  border-radius: 12px;
  padding: 14px 16px;
  margin-top: 18px;
}
.safe { border-left: 4px solid var(--ok); }
h2 { margin-top: 0; }
footer {
  color: var(--muted);
  font-size: 14px;
  padding: 12px 0 40px;
}
.links { display: flex; flex-wrap: wrap; gap: 12px 18px; margin: 8px 0 16px; }
small { color: var(--muted); }
@media (max-width: 640px) {
  .hero, .card { padding: 20px; }
  .hero h1 { font-size: 26px; }
  .header-inner { align-items: flex-start; flex-direction: column; }
}