:root { color-scheme: light; --ink: #16251f; --muted: #65736e; --green: #13795b; --line: #dbe5df; --paper: #fff; --wash: #f3f7f4; --warn: #fff4d8; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--wash); color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; line-height: 1.8; }
main { width: min(860px, calc(100% - 32px)); margin: 40px auto; padding: clamp(24px, 5vw, 56px); background: var(--paper); border: 1px solid var(--line); border-radius: 22px; box-shadow: 0 18px 55px rgba(27, 64, 49, .08); }
.back { color: var(--green); text-decoration: none; font-weight: 700; }
h1 { margin: 24px 0 6px; font-size: clamp(30px, 5vw, 46px); line-height: 1.2; }
.meta { color: var(--muted); }
.notice { margin: 24px 0; padding: 14px 18px; border-radius: 12px; background: var(--warn); }
h2 { margin-top: 34px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 21px; }
h3 { margin-top: 24px; font-size: 17px; }
a { color: var(--green); }
li { margin: 7px 0; }
footer { margin-top: 40px; padding-top: 18px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
@media (max-width: 560px) { main { width: 100%; margin: 0; border: 0; border-radius: 0; min-height: 100vh; } }