:root{--brand:#1a4bd6;--brand-d:#0d36b3;--accent:#ffcc00;--ink:#1f2d3d;--sub:#6b7b90;--line:#e5ebf3;--bg:#f4f7fb}
*{margin:0;padding:0;box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75}
.wrap{max-width:860px;margin:0 auto;padding:0 20px}
.topbar{background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#fff;box-shadow:0 4px 18px rgba(26,75,214,.18)}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{color:#fff;font-size:18px;font-weight:700;text-decoration:none;letter-spacing:1px}
.topbar nav a{color:#dce6ff;text-decoration:none;margin-left:20px;font-size:15px}
.topbar nav a:hover{color:#fff}
main{padding:36px 20px 60px}
.page-title{font-size:26px;letter-spacing:1px;border-left:4px solid var(--accent);padding-left:12px;margin-bottom:8px}
.page-desc{color:var(--sub);font-size:14px;margin-bottom:24px}
.cards{display:grid;gap:16px}
.card{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 24px;text-decoration:none;color:inherit;box-shadow:0 10px 28px rgba(28,54,96,.05);transition:transform .18s,box-shadow .18s}
.card:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(28,54,96,.12)}
.card h2{font-size:19px;margin-bottom:6px}
.card .date{color:var(--sub);font-size:13px;font-family:Consolas,Menlo,monospace}
.card .summary{color:#41546e;font-size:15px;margin-top:8px}
.card .more{display:inline-block;margin-top:12px;color:var(--brand);font-size:14px}
.empty{color:var(--sub);background:#fff;border:1px dashed var(--line);border-radius:12px;padding:30px;text-align:center}
.post{background:#fff;border:1px solid var(--line);border-radius:14px;padding:34px 36px;box-shadow:0 10px 28px rgba(28,54,96,.05)}
.post .back{font-size:14px;margin-bottom:16px}
.post .back a{color:var(--brand);text-decoration:none}
.post h1{font-size:26px;line-height:1.4;margin-bottom:10px}
.post .meta{color:var(--sub);font-size:13px;font-family:Consolas,Menlo,monospace;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:22px}
.content{font-size:16px;color:#28374d}
.content h2{font-size:20px;margin:30px 0 12px;padding-left:10px;border-left:3px solid var(--brand)}
.content h3{font-size:17px;margin:22px 0 10px}
.content h4{font-size:16px;margin:18px 0 8px}
.content p{margin:14px 0}
.content ul,.content ol{margin:14px 0 14px 24px}
.content li{margin:6px 0}
.content a{color:var(--brand)}
.content img{max-width:100%;border-radius:10px;margin:16px 0}
.content blockquote{margin:16px 0;padding:12px 18px;background:#f7faff;border-left:3px solid var(--brand);border-radius:6px;color:#41546e}
.content code{background:#eef3fb;padding:2px 6px;border-radius:4px;font-family:Consolas,Menlo,monospace;font-size:.92em}
.content pre{background:#0f1b2d;color:#e6edf7;padding:16px 18px;border-radius:10px;overflow:auto;margin:16px 0}
.content pre code{background:none;color:inherit;padding:0}
.content hr{border:0;border-top:1px solid var(--line);margin:26px 0}
.pager{display:flex;gap:14px;margin-top:20px}
.pager a{flex:1;background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;text-decoration:none;color:var(--ink);font-size:15px;box-shadow:0 8px 22px rgba(28,54,96,.05)}
.pager a span{display:block;color:var(--sub);font-size:12px;margin-bottom:4px}
.pager a.r{text-align:right}
.foot{margin-top:40px;padding:26px 0;color:var(--sub);font-size:13px;text-align:center;border-top:1px solid var(--line)}
.foot a{color:var(--brand);text-decoration:none}
@media(max-width:640px){.post{padding:24px 20px}main{padding:24px 16px 44px}.post h1{font-size:22px}}