:root {
  --ink: #192522;
  --muted: #64736e;
  --line: #d8e1dd;
  --green: #0f6b63;
}

* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif; background: #f5f7f6; }
a { color: inherit; text-decoration: none; }
header { display: flex; min-height: 70px; padding: 0 clamp(18px, 5vw, 70px); align-items: center; justify-content: space-between; background: #fff; border-bottom: 1px solid var(--line); }
header > a:first-child { display: inline-flex; align-items: center; gap: 10px; }
header span { display: grid; width: 36px; height: 36px; padding: 3px; place-items: center; overflow: hidden; background: #fff; border: 1px solid var(--line); border-radius: 8px; }
header span img { display: block; width: 100%; height: 100%; object-fit: contain; }
header > a:last-child { color: var(--green); font-size: 13px; font-weight: 800; }
main { width: min(840px, calc(100% - 30px)); margin: 0 auto; padding: 70px 0 90px; }
.kicker { margin: 0 0 10px; color: var(--green); font-size: 13px; font-weight: 800; }
h1 { margin: 0; font-size: clamp(38px, 6vw, 60px); letter-spacing: 0; }
.updated { margin: 14px 0 0; color: var(--muted); font-size: 13px; }
aside { margin: 32px 0 42px; padding: 17px 20px; color: #684711; line-height: 1.7; background: #fff5dd; border: 1px solid #ead59c; border-radius: 6px; }
section { padding: 25px 0; border-top: 1px solid var(--line); }
section h2 { margin: 0 0 12px; font-size: 20px; }
section p { margin: 0; color: #475751; line-height: 1.9; }
footer { padding: 28px 20px; color: #9ab0aa; font-size: 12px; text-align: center; background: #102824; }
footer a:hover, footer a:focus-visible { color: #fff; text-decoration: underline; }
@media (max-width: 600px) { main { padding-top: 48px; } section { padding-block: 22px; } }