:root{--ink:#111827;--body:#374151;--muted:#6b7280;--line:#e5e7eb;--accent:#4f46e5;--accent-soft:#eef2ff;--bg:#ffffff;--radius:8px}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:Inter,-apple-system,"PingFang SC","Helvetica Neue",sans-serif;color:var(--body);background:var(--bg);line-height:1.8;font-size:16px}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
.nav{position:sticky;top:0;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);z-index:10;box-shadow:0 1px 8px rgba(0,0,0,.04)}
.nav-inner{max-width:1560px;margin:0 auto;padding:0 24px;height:56px;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;column-gap:clamp(14px,1.8vw,30px)}
.brand{display:inline-flex;align-items:center}
.brand img{height:20px;width:auto;display:block}
.nav-links{display:flex;align-items:center;justify-content:center;gap:2px;font-size:13px}
.nav-links a{color:var(--muted);padding:9px 10px;border-radius:8px;line-height:1}
.nav-links a:hover{color:var(--ink);text-decoration:none;background:#f3f4f6}
.nav-links a.active{color:var(--ink);background:#f3f4f6;font-weight:500}
.nav-cta{display:flex;align-items:center;justify-content:flex-end;gap:6px;font-size:13px}
.nav-cta .lang{color:var(--muted);padding:8px 10px;border-radius:8px}
.nav-cta .lang:hover{color:var(--ink);background:#f3f4f6;text-decoration:none}
.nav-cta .btn{background:var(--accent);color:#fff;padding:9px 18px;border-radius:10px;font-weight:500}
.nav-cta .btn:hover{text-decoration:none;opacity:.92}
.wrap{max-width:760px;margin:0 auto;padding:40px 24px 64px}
.wrap-wide{max-width:1080px;margin:0 auto;padding:40px 24px 64px}
.crumb{font-size:13px;color:var(--muted);margin-bottom:20px}
h1{color:var(--ink);font-size:30px;line-height:1.35;letter-spacing:-.02em;margin:0 0 10px}
.meta{color:var(--muted);font-size:13px;margin-bottom:32px;display:flex;gap:14px;align-items:center}
.article h2{color:var(--ink);font-size:21px;margin-top:40px;letter-spacing:-.01em}
.article h3{color:var(--ink);font-size:17px}
.article p{margin:18px 0}
.article strong{color:var(--ink)}
.article blockquote{border-left:3px solid var(--accent);background:var(--accent-soft);margin:20px 0;padding:8px 18px;border-radius:0 var(--radius) var(--radius) 0;color:#4338ca}
.article table{border-collapse:collapse;width:100%;font-size:14px;margin:20px 0}
.article th,.article td{border:1px solid var(--line);padding:9px 12px;text-align:left}
.article th{background:#f9fafb;color:var(--ink)}
.article code{background:#f3f4f6;border-radius:4px;padding:2px 6px;font-size:.9em}
.article pre{background:#0f172a;color:#e2e8f0;border-radius:var(--radius);padding:16px 18px;overflow-x:auto;font-size:13.5px;line-height:1.6}
.article pre code{background:none;padding:0;color:inherit}
.article hr{border:none;border-top:1px dashed var(--line);margin:36px 0}
.cta{margin-top:48px;border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;background:linear-gradient(135deg,#f8faff, #eef2ff)}
.cta h3{margin:0 0 8px;color:var(--ink);font-size:16px}
.cta p{margin:0 0 14px;font-size:14px;color:var(--muted)}
.cta a.btn{display:inline-block;background:var(--accent);color:#fff;padding:9px 20px;border-radius:var(--radius);font-size:14px;font-weight:500}
.cta a.btn:hover{text-decoration:none;opacity:.92}
.related{margin-top:44px;border-top:1px solid var(--line);padding-top:28px}
.related h3{color:var(--ink);font-size:16px;margin:0 0 14px}
.related ul{margin:0;padding-left:20px;font-size:14.5px}.related li{margin:8px 0}
.list-hero{margin:8px 0 36px}
.list-hero p{color:var(--muted);margin:6px 0 0}
.cover{width:100%;height:auto;border-radius:var(--radius);border:1px solid var(--line);margin:0 0 28px;display:block}
.card{display:flex;gap:18px;border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;margin:14px 0;transition:border-color .15s, box-shadow .15s;align-items:center}
.card:hover{text-decoration:none;border-color:var(--accent);box-shadow:0 2px 12px rgba(79,70,229,.08)}
.card-img{width:150px;height:100px;object-fit:cover;border-radius:6px;flex-shrink:0;border:1px solid var(--line)}
.card-img-ph{background:linear-gradient(135deg,var(--accent-soft),#f9fafb)}
.card-body{min-width:0}
.card .d{font-size:12.5px;color:var(--muted)}
.card .t{color:var(--ink);font-weight:600;font-size:17px;margin:4px 0 6px;letter-spacing:-.01em}
.card .s{color:var(--muted);font-size:14px;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.footer{border-top:1px solid var(--line);margin-top:24px}
.sec-title{color:var(--ink);font-size:19px;margin:36px 0 14px;letter-spacing:-.01em}
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:16px}
.pcard{display:block;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:border-color .15s, box-shadow .15s;background:#fff}
.pcard:hover{text-decoration:none;border-color:var(--accent);box-shadow:0 2px 12px rgba(79,70,229,.10)}
.pcard-img{width:100%;aspect-ratio:2/3;object-fit:cover;display:block}
.pcard-t{color:var(--ink);font-weight:600;font-size:14.5px;padding:10px 12px 2px;line-height:1.4}
.pcard-d{color:var(--muted);font-size:12px;padding:0 12px 12px}
.post-gallery{display:flex;flex-direction:column;gap:14px;margin:8px 0 24px}
.post-img{width:100%;height:auto;border-radius:var(--radius);border:1px solid var(--line);display:block}
.footer-inner{max-width:1080px;margin:0 auto;padding:28px 24px;font-size:13px;color:var(--muted);display:flex;gap:18px;flex-wrap:wrap}
@media(max-width:640px){.nav-links{display:none}h1{font-size:24px}.card{flex-direction:column;align-items:stretch}.card-img{width:100%;height:150px}}