:root{--bg:#fafbfc;--fg:#1d2329;--muted:#5d6670;--line:#e1e5ea;--card:#fff;--accent:#1871a1;--accent-fg:#fff;--chip:#e8f2f8;--code:#f1f3f5}
@media (prefers-color-scheme:dark){:root{--bg:#14181c;--fg:#e6e8ea;--muted:#9aa3ad;--line:#2b3238;--card:#1b2026;--accent:#5bb6e8;--accent-fg:#0b1a24;--chip:#1c2a35;--code:#20262c}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
a{color:var(--accent)}
img{max-width:100%;height:auto}
.wrap{max-width:860px;margin:0 auto;padding:0 16px}
.hero{background:linear-gradient(rgba(10,16,24,.2),rgba(10,16,24,.62)),url(/img/header.jpg) center 62%/cover no-repeat #1b2430;min-height:150px;display:flex;align-items:flex-end}
.hero.big{min-height:min(300px,46vw)}
.hero .wrap{width:100%;padding-top:18px;padding-bottom:18px}
.brand{display:inline-flex;align-items:center;gap:14px;text-decoration:none;color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.45)}
.brand img{width:58px;height:auto;filter:drop-shadow(0 1px 3px rgba(0,0,0,.5))}
.brand span{font-weight:800;font-size:1.6rem;letter-spacing:.06em;text-transform:uppercase;line-height:1.15}
.brand small{display:block;font-weight:400;font-size:.95rem;letter-spacing:0;text-transform:none;opacity:.92}
nav.top{background:var(--card);border-bottom:1px solid var(--line)}
nav.top .wrap{display:flex;gap:22px;padding-top:10px;padding-bottom:10px}
nav.top a{text-decoration:none;font-weight:600;font-size:.95rem}
main{padding:28px 0 48px;overflow-wrap:anywhere}
h1{line-height:1.25;font-size:1.9rem;margin:.2em 0 .4em}
h2{margin-top:2em;font-size:1.3rem}
.meta{color:var(--muted);font-size:.9rem}
.chip{display:inline-block;background:var(--chip);border-radius:999px;padding:1px 10px;margin:2px 4px 2px 0;font-size:.8rem;text-decoration:none}
.note{border-left:4px solid var(--accent);background:var(--card);padding:10px 14px;margin:18px 0;font-size:.92rem;color:var(--muted)}
.post-body{overflow-wrap:anywhere}
.post-body pre,.post-body code{background:var(--code);font-size:.88em}
.post-body pre{padding:12px;overflow-x:auto}
.post-body table{border-collapse:collapse;display:block;overflow-x:auto}
.post-body td,.post-body th{border:1px solid var(--line);padding:4px 8px}
.post-body blockquote{margin:1em 0;padding-left:1em;border-left:3px solid var(--line);color:var(--muted)}
ul.list{list-style:none;padding:0;margin:0}
ul.list li{padding:8px 0;border-bottom:1px solid var(--line)}
ul.list .d{color:var(--muted);font-size:.85rem;white-space:nowrap;margin-right:8px}
ul.list .k{color:var(--muted);font-size:.75rem;margin-left:6px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px 16px;text-decoration:none;color:var(--fg);display:block}
.card b{color:var(--accent)}
.card p{margin:.3em 0 0;font-size:.85rem;color:var(--muted)}
.years a{display:inline-block;margin:0 10px 6px 0}
input.search{width:100%;padding:12px 14px;font-size:1rem;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--fg)}
.pager{display:flex;justify-content:space-between;gap:16px;margin-top:40px;font-size:.9rem}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:.85rem;padding:20px 0 40px}
footer a{color:var(--muted)}
.buy{display:block;background:var(--card);border:2px solid var(--accent);border-radius:12px;padding:16px 18px;margin:12px 0;text-decoration:none;color:var(--fg)}
.buy:hover{background:var(--chip)}
.buy .price{float:right;font-size:1.4rem;font-weight:700;color:var(--accent)}
.buy em{color:var(--accent);font-style:normal;font-weight:700}
figure{margin:20px 0}
.ai-card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:4px 18px 12px;margin:14px 0}
.ai-card h3{margin:14px 0 6px}
.ai-card pre{position:relative;background:var(--code);padding:12px 70px 12px 12px;border-radius:8px;overflow-x:auto;font-size:.85rem;margin:8px 0}
.copy{position:absolute;top:8px;right:8px;font:600 .75rem system-ui;padding:4px 10px;border-radius:6px;border:1px solid var(--line);background:var(--card);color:var(--fg);cursor:pointer}
figure img{border:1px solid var(--line);border-radius:6px}
@media (max-width:560px){h1{font-size:1.5rem}nav.top .wrap{gap:16px}.brand img{width:44px}.brand span{font-size:1.15rem}.brand small{font-size:.85rem}.buy .price{float:none;display:block}}