:root{--bg: #ffffff;--fg: #14171f;--muted: #5b6475;--line: #e4e7ee;--accent: #0f766e;--accent-fg: #ffffff;--card: #f6f8fa;--pos: #15803d;--neg: #b91c1c;--viz: #0d9488;--max: 820px}@media(prefers-color-scheme:dark){:root{--bg: #0e1214;--fg: #e8ecef;--muted: #94a0a8;--line: #222a2f;--accent: #2dd4bf;--accent-fg: #06201d;--card: #151b1e;--pos: #4ade80;--neg: #f87171;--viz: #1aa596}}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.75 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans SC,sans-serif}a{color:var(--accent)}.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}header.site{border-bottom:1px solid var(--line)}header.site .wrap{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;min-height:60px;gap:6px 12px;padding-top:10px;padding-bottom:10px}header.site .brand{font-weight:700;font-size:1.1rem;color:var(--fg);text-decoration:none}header.site nav{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:.95rem;align-items:center}header.site nav a{color:var(--muted);text-decoration:none}header.site nav a:hover{color:var(--fg)}header.site nav a.lang{border:1px solid var(--line);border-radius:6px;padding:2px 10px;color:var(--fg)}main{padding:40px 0 60px}footer.site{border-top:1px solid var(--line);padding:28px 0;color:var(--muted);font-size:.9rem}footer.site .wrap{display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between}h1{font-size:2.2rem;line-height:1.25;margin:0 0 12px}h2{font-size:1.5rem;margin:2.2rem 0 .6rem}h3{font-size:1.15rem;margin:1.6rem 0 .4rem}.lead{font-size:1.15rem;color:var(--muted);max-width:640px}.btn{display:inline-block;padding:10px 20px;border-radius:8px;background:var(--accent);color:var(--accent-fg);text-decoration:none;font-weight:600;border:0;cursor:pointer;font-size:1rem}.btn.ghost{background:transparent;color:var(--fg);border:1px solid var(--line)}.actions{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0}.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));margin:24px 0}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 20px}.card h3{margin-top:0}.card p{margin:.3rem 0 0;color:var(--muted);font-size:.95rem}a.card{text-decoration:none;color:inherit;display:block}a.card:hover{border-color:var(--accent)}.badge{display:inline-block;font-size:.75rem;font-weight:600;letter-spacing:.02em;padding:1px 8px;border-radius:999px;border:1px solid var(--line);color:var(--muted);margin-right:8px;vertical-align:middle}.post-list{list-style:none;padding:0;margin:16px 0}.post-list li{padding:14px 0;border-bottom:1px solid var(--line)}.post-list a{font-weight:600;font-size:1.1rem;text-decoration:none}.post-list .meta{color:var(--muted);font-size:.88rem;margin-top:2px}.post-list p{margin:4px 0 0;color:var(--muted);font-size:.95rem}.post-meta{color:var(--muted);font-size:.9rem;margin-bottom:20px}.prose img{max-width:100%;height:auto}.prose pre{background:var(--card);padding:14px;border-radius:8px;overflow-x:auto}.prose code{background:var(--card);padding:2px 5px;border-radius:4px;font-size:.92em}.prose table{border-collapse:collapse;width:100%;font-size:.95rem;display:block;overflow-x:auto}.prose th,.prose td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}.notice{border-left:3px solid var(--accent);background:var(--card);padding:12px 16px;border-radius:0 8px 8px 0;font-size:.9rem;color:var(--muted);margin:32px 0}.notice strong{color:var(--fg)}.subscribe{margin:40px 0}.subscribe form{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.subscribe input[type=email]{flex:1 1 220px;padding:10px 12px;border-radius:8px;border:1px solid var(--line);background:var(--bg);color:var(--fg);font-size:1rem}.field{display:grid;gap:6px;margin-bottom:14px}.field label{font-size:.9rem;color:var(--muted)}.field input,.field select{padding:10px 12px;border-radius:8px;border:1px solid var(--line);background:var(--bg);color:var(--fg);font-size:1rem;width:100%}.row{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}.result{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin-top:18px}.result .big{font-size:1.6rem;font-weight:700}.result .line{display:flex;justify-content:space-between;gap:12px;padding:4px 0}.pos{color:var(--pos)}.neg{color:var(--neg)}