:root {
  --brand: #FF4747;
  --brand-dark: #E23636;
  --ink: #1f2430;
  --muted: #6b7280;
  --line: #e8eaf0;
  --bg: #f7f8fb;
  --ok: #16a34a;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg); color: var(--ink); min-height: 100vh;
  display: flex; flex-direction: column; line-height: 1.6;
}
header {
  background: #fff; border-bottom: 1px solid var(--line);
  padding: 14px 24px; display: flex; align-items: center; gap: 12px;
  position: sticky; top: 0; z-index: 10;
}
.wrap { max-width: 1000px; width: 100%; margin: 0 auto; padding: 0 20px; }
header .wrap { display: flex; align-items: center; gap: 12px; }
.logo { width: 38px; height: 38px; }
.brand { font-size: 19px; font-weight: 700; }
.brand span { color: var(--brand); }
nav { margin-left: auto; display: flex; gap: 22px; flex-wrap: wrap; }
nav a { color: var(--ink); text-decoration: none; font-size: 14.5px; font-weight: 500; }
nav a:hover, nav a.active { color: var(--brand); }
main { flex: 1; padding: 44px 0 60px; }
h1 { font-size: 30px; line-height: 1.25; margin-bottom: 14px; }
h2 { font-size: 21px; margin: 30px 0 12px; }
h3 { font-size: 16.5px; margin: 20px 0 8px; }
p { margin-bottom: 12px; }
.lead { color: var(--muted); font-size: 16px; }
.muted { color: var(--muted); }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  padding: 28px; box-shadow: 0 6px 24px rgba(20,24,40,.05); margin-bottom: 22px;
}
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 18px 0; }
.grid3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; margin: 18px 0; }
.card-s {
  border: 1px solid var(--line); border-radius: 10px; padding: 18px; font-size: 14px;
  color: var(--muted); background: #fff; line-height: 1.55;
}
.card-s b { color: var(--ink); display: block; margin-bottom: 6px; font-size: 15px; }
.btn {
  display: inline-block; padding: 11px 22px; border-radius: 9px; text-decoration: none;
  background: var(--brand); color: #fff; font-weight: 600; font-size: 14.5px; border: 0; cursor: pointer;
}
.btn:hover { background: var(--brand-dark); }
.btn-ghost { background: #fff; color: var(--ink); border: 1px solid var(--line); }
.hero { text-align: center; padding: 30px 10px 10px; }
.hero h1 { font-size: 36px; max-width: 760px; margin: 0 auto 14px; }
.hero .lead { max-width: 640px; margin: 0 auto 24px; }
.hero .actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.badge {
  display: inline-block; font-size: 12.5px; font-weight: 600; color: var(--brand);
  background: #fff2f2; border: 1px solid #ffd9d9; padding: 5px 12px; border-radius: 999px; margin-bottom: 16px;
}
article { font-size: 15.5px; }
article p { margin-bottom: 14px; }
article li { margin-bottom: 6px; }
.meta { color: var(--muted); font-size: 13px; margin-bottom: 20px; }
.list a { display: block; padding: 16px 18px; border: 1px solid var(--line); border-radius: 10px;
  background: #fff; text-decoration: none; color: var(--ink); margin-bottom: 12px; }
.list a:hover { border-color: var(--brand); }
.list b { display: block; margin-bottom: 4px; }
.list span { color: var(--muted); font-size: 14px; }
footer {
  border-top: 1px solid var(--line); background: #fff; padding: 26px 0; margin-top: auto;
}
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  color: var(--muted); font-size: 13px; }
footer a { color: var(--muted); text-decoration: none; margin-right: 14px; }
footer a:hover { color: var(--brand); }
table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 14px 0; background: #fff; }
th, td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; }
th { background: #fafbfe; }
code, .mono { font-family: ui-monospace, Consolas, monospace; background: #f2f4f9; padding: 2px 6px; border-radius: 5px; font-size: 13px; }
.status { margin: 22px 0 8px; padding: 18px 20px; border-radius: 12px; display: flex;
  align-items: flex-start; gap: 14px; font-size: 14.5px; line-height: 1.55;
  border: 1px solid var(--line); background: #fafbfe; }
.status .dot { width: 34px; height: 34px; border-radius: 50%; flex: none; display: flex;
  align-items: center; justify-content: center; font-weight: 700; color: #fff; }
.ok .dot { background: var(--ok); } .err .dot { background: var(--err); } .idle .dot { background: var(--muted); }
.status b { display: block; margin-bottom: 2px; }
.codebox { margin-top: 14px; display: none; }
.codebox label { font-size: 12.5px; color: var(--muted); display: block; margin-bottom: 6px; }
.coderow { display: flex; gap: 8px; }
.coderow input { flex: 1; font-family: ui-monospace, Consolas, monospace; font-size: 13px;
  padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: #fafbfe; }
.coderow button { padding: 10px 16px; border: 0; border-radius: 8px; background: var(--brand); color: #fff;
  font-size: 13.5px; font-weight: 600; cursor: pointer; }
.coderow button:hover { background: var(--brand-dark); }
.kv { margin-top: 14px; font-size: 12.5px; color: var(--muted); word-break: break-all; display: none; }
@media (max-width: 720px) {
  .grid, .grid3 { grid-template-columns: 1fr; }
  .hero h1 { font-size: 27px; }
  nav { gap: 14px; }
}