:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #242128;
  background: #f4f0e9;
}
* { box-sizing: border-box; }
body { margin: 0; line-height: 1.8; }
main { width: min(860px, calc(100% - 32px)); margin: 36px auto; padding: clamp(26px, 5vw, 56px); border: 1px solid #e2ddd5; border-radius: 20px; background: #fff; box-shadow: 0 18px 60px rgba(43, 35, 28, .07); }
.brand { display: inline-flex; color: #6f55d9; font-weight: 800; text-decoration: none; letter-spacing: -.02em; }
h1 { margin: 20px 0 4px; font: 750 clamp(30px, 5vw, 44px)/1.2 Georgia, "Songti SC", serif; letter-spacing: -.04em; }
.meta { margin: 0 0 32px; color: #7c747e; font-size: 13px; }
h2 { margin: 30px 0 8px; font-size: 19px; }
p, li { color: #514b53; font-size: 15px; }
ul, ol { padding-left: 1.35em; }
.notice { margin: 24px 0; padding: 15px 17px; border-left: 3px solid #7257d9; border-radius: 8px; background: #f5f2ff; }
.notice strong { color: #3f3476; }
nav { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 40px; padding-top: 22px; border-top: 1px solid #ece8e2; }
nav a, main a { color: #5d47c0; text-underline-offset: 3px; }
footer { width: min(860px, calc(100% - 32px)); margin: -18px auto 36px; color: #756e75; text-align: center; font-size: 12px; }
@media (max-width: 560px) { main { margin-top: 16px; padding: 24px 20px; border-radius: 14px; } }