:root{color-scheme:light;--ink:#152033;--muted:#667085;--line:#e6e9ef;--brand:#2f80ff}*{box-sizing:border-box}body{margin:0;font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:linear-gradient(145deg,#f8fafc,#eef4ff)}main{width:min(860px,calc(100% - 32px));margin:48px auto;padding:clamp(28px,6vw,64px);background:#fff;border:1px solid var(--line);border-radius:28px;box-shadow:0 24px 70px rgba(31,52,86,.09)}a{color:var(--brand)}.back{display:inline-flex;margin-bottom:34px;text-decoration:none;font-weight:700}h1{margin:0 0 10px;font-size:clamp(32px,6vw,52px);letter-spacing:-.04em}h2{margin:34px 0 10px;font-size:20px}p,li{color:var(--muted);line-height:1.85}strong{color:var(--ink)}.meta{padding-bottom:24px;border-bottom:1px solid var(--line)}.notice{padding:18px 20px;border-radius:16px;background:#f3f7ff;border:1px solid #dce8ff}@media(max-width:640px){main{margin:16px auto;border-radius:20px;padding:24px}}