:root {
  color-scheme: light dark;
  --brand: #f08a24;
  --brand-deep: #b45f06;
  --ink: #10202e;
  --muted: #5d7186;
  --surface: #ffffff;
  --background: #f6f9fc;
  --line: rgba(240, 138, 36, 0.18);
  --notice: #fef4e8;
  --warning: #fff6e5;
  --warning-line: #f0a020;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--background);
  line-height: 1.75;
  -webkit-text-size-adjust: 100%;
}

.page { max-width: 860px; margin: 0 auto; padding: 42px 22px 56px; }
header { padding: 30px 0 26px; border-bottom: 1px solid var(--line); }
.brand { color: var(--brand); font-weight: 750; font-size: 15px; letter-spacing: 0.05em; }
h1 { margin: 8px 0 0; color: var(--ink); font-size: 34px; line-height: 1.22; }
.meta, footer { color: var(--muted); font-size: 14px; }
.meta { margin-top: 12px; }
.language { margin-top: 18px; display: flex; gap: 14px; flex-wrap: wrap; }
main { padding-top: 22px; }
section { padding: 22px 0; border-bottom: 1px solid var(--line); }
section:last-child { border-bottom: 0; }
h2 { margin: 0 0 12px; color: var(--brand-deep); font-size: 20px; line-height: 1.4; }
h3 { margin: 18px 0 8px; color: var(--ink); font-size: 16px; line-height: 1.4; }
p { margin: 0 0 12px; }
ul, ol { margin: 0 0 8px 20px; padding: 0; }
li { margin-bottom: 8px; }
code { padding: 1px 5px; border-radius: 5px; background: var(--notice); font-size: 0.92em; }
.notice { padding: 16px 18px; border-left: 4px solid var(--brand); background: var(--notice); border-radius: 0 12px 12px 0; }
.warning { padding: 16px 18px; border-left: 4px solid var(--warning-line); background: var(--warning); border-radius: 0 12px 12px 0; }
table { width: 100%; border-collapse: collapse; margin: 0 0 14px; font-size: 15px; }
th, td { padding: 9px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--muted); font-weight: 650; font-size: 14px; }
a { color: var(--brand-deep); font-weight: 650; text-decoration: none; }
a:hover { text-decoration: underline; }
footer { padding-top: 24px; }

@media (prefers-color-scheme: dark) {
  :root {
    --brand: #ffb367;
    --brand-deep: #ffc98a;
    --ink: #e8f1f9;
    --muted: #9db2c6;
    --surface: #16202a;
    --background: #0d1520;
    --line: rgba(255, 179, 103, 0.2);
    --notice: #33261a;
    --warning: #33291a;
    --warning-line: #d9a04a;
  }
}

@media (max-width: 640px) {
  .page { padding: 24px 18px 40px; }
  header { padding-top: 18px; }
  h1 { font-size: 28px; }
  h2 { font-size: 18px; }
  table { font-size: 14px; }
  th, td { padding: 7px 6px; }
}