:root{color-scheme:light;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#111827;background:#f8fafc}
body{margin:0;background:#f8fafc}
.wrap{max-width:1040px;margin:0 auto;padding:0 24px}
header{position:sticky;top:0;background:rgba(255,255,255,.94);border-bottom:1px solid #e5e7eb;backdrop-filter:saturate(180%) blur(10px);z-index:10}
header .bar{height:64px;display:flex;align-items:center;justify-content:space-between}
.brand{font-weight:800;font-size:20px;color:#111827;text-decoration:none}
nav a{color:#4b5563;text-decoration:none;font-size:14px;margin-left:20px}
.hero{padding:42px 0 22px}.hero h1{font-size:34px;line-height:1.15;margin:0 0 12px}.hero p{margin:0;color:#6b7280;max-width:680px}
.card{background:#fff;border:1px solid #e5e7eb;border-radius:8px;box-shadow:0 1px 3px rgba(15,23,42,.06)}
.list{display:grid;gap:18px;padding:0 0 44px}
article.card{padding:24px}
.meta{display:flex;flex-wrap:wrap;gap:10px;color:#6b7280;font-size:13px;margin-bottom:12px}
.chip{display:inline-flex;align-items:center;border:1px solid #dbeafe;background:#eff6ff;color:#2563eb;border-radius:999px;padding:3px 9px}
h2{font-size:22px;margin:0 0 10px}h2 a{color:#111827;text-decoration:none}h2 a:hover{color:#2563eb}
.summary{color:#4b5563;line-height:1.75;margin:0 0 18px}.read{color:#2563eb;text-decoration:none;font-weight:600;font-size:14px}
.detail{padding:34px;margin-bottom:44px}.detail h1{font-size:38px;line-height:1.14;margin:0 0 16px}
.content{font-size:17px;line-height:1.9;color:#1f2937}.content p{margin:0 0 1em}
.content h2{font-size:28px;line-height:1.25;margin:1.65em 0 .7em;color:#111827}.content h3{font-size:22px;line-height:1.35;margin:1.45em 0 .65em;color:#111827}.content h4{font-size:18px;margin:1.25em 0 .55em}
.content ul,.content ol{margin:0 0 1.2em 1.25em;padding:0}.content li{margin:.35em 0}.content strong{font-weight:700;color:#111827}.content a{color:#2563eb;text-decoration:underline;text-underline-offset:3px}
.content img{display:block;max-width:100%;height:auto;border-radius:8px;margin:24px auto}.content blockquote{margin:1.4em 0;padding:14px 18px;border-left:4px solid #dbeafe;background:#f8fafc;color:#374151}
.content pre{overflow:auto;border-radius:8px;background:#111827;color:#f9fafb;padding:16px;margin:1.4em 0}.content code{border-radius:4px;background:#f3f4f6;padding:2px 5px;font-size:.92em}.content pre code{background:transparent;padding:0;color:inherit}
.content .article-table-wrap{overflow-x:auto;margin:1.4em 0;border:1px solid #e5e7eb;border-radius:8px}.content .article-table{width:100%;border-collapse:collapse;background:#fff}.content .article-table th,.content .article-table td{border-bottom:1px solid #e5e7eb;padding:10px 12px;text-align:left;vertical-align:top}.content .article-table th{background:#f9fafb;color:#111827;font-weight:700}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px;padding-top:22px;border-top:1px solid #e5e7eb}.tags span{display:inline-flex;border:1px solid #e5e7eb;background:#f9fafb;color:#4b5563;border-radius:999px;padding:5px 10px;font-size:13px}
.empty{padding:52px;text-align:center;color:#6b7280}.back{display:inline-block;margin:28px 0 18px;color:#4b5563;text-decoration:none}
footer{border-top:1px solid #e5e7eb;color:#6b7280;font-size:13px;padding:24px 0 36px}
body.target-theme-toutiao{background:#fffafa}.target-theme-toutiao header{border-bottom-color:#fecaca}.target-theme-toutiao .brand,.target-theme-toutiao h2 a:hover,.target-theme-toutiao .read{color:#dc2626}.target-theme-toutiao .chip{border-color:#fecaca;background:#fef2f2;color:#b91c1c}.target-theme-toutiao .card{border-color:#fee2e2}
body.target-theme-netease{background:#f7f7f7}.target-theme-netease header{border-top:3px solid #d7000f}.target-theme-netease .brand,.target-theme-netease h2 a:hover,.target-theme-netease .read{color:#b91c1c}.target-theme-netease .chip{border-color:#fee2e2;background:#fff1f2;color:#991b1b}.target-theme-netease .hero h1{font-weight:900}.target-theme-netease .card{box-shadow:none}
body.target-theme-tdwh{background:#f8fbff}.target-theme-tdwh header{border-bottom-color:#bfdbfe}.target-theme-tdwh .brand,.target-theme-tdwh h2 a:hover,.target-theme-tdwh .read{color:#1d4ed8}.target-theme-tdwh .chip{border-color:#bfdbfe;background:#eff6ff;color:#1e40af}.target-theme-tdwh .card{border-color:#dbeafe}