:root{--bg:#0c1016;--panel:#131c26;--line:#233244;--fg:#e8eef7;--dim:#93a4b8;--acc:#6ea8fe;--warn:#f0b429}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}
a{color:var(--acc);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:780px;margin:0 auto;padding:0 20px 60px}
.top{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;padding:20px 0;border-bottom:1px solid var(--line);margin-bottom:36px}
.brand{font-weight:600;font-size:17px;color:var(--fg)}
.top nav a{color:var(--dim);font-size:14px;margin-left:18px}
.top nav a:hover{color:var(--acc)}
h1{font-size:28px;line-height:1.4;margin:0 0 14px;letter-spacing:.01em}
h2{font-size:19px;margin:36px 0 12px;line-height:1.5}
h3{font-size:16px;margin:20px 0 8px;color:var(--dim)}
p{margin:0 0 16px}
.lead{font-size:17px;color:#c8d6e8;border-left:2px solid var(--acc);padding-left:14px;margin:0 0 28px}
.sub{color:var(--dim);font-size:14px;margin:-6px 0 14px;font-style:italic}
.prose p{font-size:17px;line-height:1.95;color:#dfe8f4}
.crumb{font-size:13px;color:var(--dim);margin-bottom:18px}
.ref{font-size:12px;padding:1px 4px;border-radius:4px;background:#1b2836;color:#9cc4f5;white-space:nowrap}
.dim{color:var(--dim)}
.small{font-size:13px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:26px 0}
.stat{background:var(--panel);border-radius:10px;padding:14px 12px;text-align:center}
.stat-v{font-size:24px;font-weight:600;color:#fff}
.stat-k{font-size:12px;color:var(--dim);margin-top:2px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.card{display:block;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px 18px;transition:border-color .15s}
.card:hover{border-color:var(--acc);text-decoration:none}
.card-n{font-size:12px;color:var(--acc);margin-bottom:6px}
.card-t{font-size:16px;font-weight:500;color:#fff;line-height:1.45;margin-bottom:6px}
.card-d{font-size:13px;color:var(--dim);line-height:1.6}
.qalist{list-style:none;padding:0;margin:0}
.qalist li{padding:10px 0;border-bottom:1px solid var(--line)}
.box{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin:22px 0}
.box h2{margin-top:0}
.box.warn{border-color:#4a3a12;background:#1a1710}
.box.warn h2{color:var(--warn)}
ul.kp li,ul.plist li{margin-bottom:8px;line-height:1.7}
.plist{list-style:none;padding:0;font-size:14px}
.plist a{color:#cfe0f5}
.badges{margin:0 0 18px}
.badge{display:inline-block;font-size:12px;padding:3px 9px;border-radius:20px;background:#1b2836;color:#9cc4f5;margin:0 6px 6px 0}
.badge.ok{background:#122a1e;color:#6fd39a}
.badge.warnb{background:#2a1f10;color:var(--warn)}
.meta{display:grid;grid-template-columns:64px 1fr;gap:6px 12px;font-size:14px;margin:0 0 26px;padding:16px 18px;background:var(--panel);border-radius:10px}
.meta dt{color:var(--dim)}
.meta dd{margin:0;word-break:break-word}
.chips a,.chip{display:inline-block;font-size:13px;padding:4px 10px;border-radius:16px;background:#1b2836;color:#9cc4f5;margin:0 6px 6px 0}
.tag{display:inline-block;font-size:12px;color:var(--dim);border:1px solid var(--line);border-radius:12px;padding:2px 8px;margin:0 6px 6px 0}
.abs{margin:24px 0;font-size:14px}
.abs summary{cursor:pointer;color:var(--acc);font-size:14px;margin-bottom:10px}
.abs p{color:var(--dim);line-height:1.8}
.term{padding:16px 0;border-bottom:1px solid var(--line)}
.term-h{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin-bottom:4px}
.term-cn{font-size:16px;font-weight:500;color:#fff}
.term-en{font-size:13px;color:var(--acc);font-style:italic}
.term p{margin:0;font-size:14px;color:#c8d6e8}
.pager{display:flex;justify-content:space-between;gap:16px;margin:40px 0 0;padding-top:20px;border-top:1px solid var(--line);font-size:14px}
.foot{margin-top:56px;padding-top:22px;border-top:1px solid var(--line);font-size:13px;color:var(--dim)}
.foot p{margin:0 0 8px}
.fill{background:#1a1710;border:1px dashed #4a3a12;color:var(--warn);padding:10px 14px;border-radius:8px;font-size:14px}
.fill p{margin:0 0 8px}
.fill p:last-child{margin:0}
code{background:#1b2836;padding:1px 5px;border-radius:4px;font-size:13px;color:#9cc4f5}
.author-name{font-size:18px;font-weight:500;color:#fff;margin:0 0 6px}
.author-title{font-size:13px;font-weight:400;color:var(--dim);margin-left:10px}
@media(max-width:600px){h1{font-size:23px}.stats{grid-template-columns:1fr 1fr}.grid{grid-template-columns:1fr}.wrap{padding:0 16px 40px}.prose p{font-size:16px}}