:root{color-scheme:light;--paper:#f6f7f8;--surface:#fff;--ink:#25282d;--muted:#65726d;--line:#e0e6e3;--orange:#b74c1a}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.8 -apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic",system-ui,sans-serif;overflow-wrap:anywhere}a{color:var(--orange);text-underline-offset:4px}a:focus-visible{outline:2px solid var(--orange);outline-offset:4px}.page-header{border-bottom:1px solid var(--line);background:var(--surface)}.page-header>div{max-width:800px;margin:auto;padding:18px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-size:22px;font-weight:800;text-decoration:none}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:var(--orange);color:#fff;font-size:21px}.back{font-size:13px;color:var(--muted)}main{max-width:752px;margin:32px auto;padding:32px 36px;background:var(--surface);border:1px solid var(--line);border-radius:18px}h1{font-size:28px;line-height:1.35;letter-spacing:-1px;margin:0 0 12px}h2{font-size:18px;line-height:1.5;margin:28px 0 8px}p{margin:8px 0}ul{padding-left:22px;margin:8px 0}li+li{margin-top:7px}.intro,.date{color:var(--muted)}.date{font-size:13px}.email{font-size:18px}.page-footer{max-width:752px;margin:0 auto 32px}.page-footer .info-links{background:transparent}@media(max-width:600px){.page-header>div{padding:14px 20px}main{margin:20px 14px;padding:26px 22px;border-radius:14px}h1{font-size:25px}.page-footer{margin:0 14px 24px}}