:root{--ink:#17212b;--muted:#64717d;--paper:#f5f2eb;--card:#fffdfa;--line:#ddd7ca;--official:#176b87;--kp:#a56a13;--ai:#7251a6;--accent:#b83f2f}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.72 system-ui,"Microsoft YaHei",sans-serif}header{display:flex;justify-content:space-between;align-items:end;padding:34px max(4vw,28px) 26px;background:#17212b;color:#fff}h1{margin:3px 0;font:700 clamp(26px,4vw,44px)/1.2 Georgia,"Songti SC",serif}h2,h3{font-family:Georgia,"Songti SC",serif}header p{margin:0;color:#b7c3ca}.eyebrow{font-size:11px;letter-spacing:.2em;color:#dfaa62}.summary{display:grid;grid-template-columns:repeat(3,auto);gap:8px 18px;color:#d8e1e5;font-size:12px}.summary b{display:block;color:#fff;font-size:20px}nav{display:flex;gap:4px;padding:0 max(4vw,28px);background:#26343e;overflow:auto}nav button{border:0;background:none;color:#c8d0d5;padding:15px 18px;white-space:nowrap;cursor:pointer;border-bottom:3px solid transparent}nav button.active{color:#fff;border-color:#dfaa62}.view{display:none}.view.active{display:block}#library.active{display:grid;grid-template-columns:340px 1fr;min-height:calc(100vh - 210px)}aside{border-right:1px solid var(--line);background:#ebe6dc;max-height:calc(100vh - 160px);overflow:auto;position:sticky;top:0}.doc-tabs{display:grid;grid-template-columns:1fr 1fr;gap:7px;padding:14px}.doc-tabs button{padding:10px;border:1px solid var(--line);background:var(--card);cursor:pointer}.doc-tabs button.active{background:var(--ink);color:white}.chapter{border-top:1px solid #d4cec1}.chapter>button{width:100%;text-align:left;border:0;background:none;padding:13px 16px;font-weight:700;cursor:pointer}.article-link{display:block;width:100%;border:0;background:none;text-align:left;padding:8px 16px 8px 29px;color:#3a4650;cursor:pointer}.article-link:hover,.article-link.active{background:#fff;color:var(--accent)}#article{padding:36px max(5vw,40px);max-width:1060px}.empty{min-height:420px;display:grid;place-content:center;text-align:center;color:var(--muted)}.empty b{font-size:23px;color:var(--ink)}.empty span{display:block}.source-banner{display:flex;justify-content:space-between;gap:15px;padding:13px 16px;background:#e6f0f2;border-left:4px solid var(--official);font-size:13px}.source-banner a{color:var(--official)}.article-title{font-size:30px;margin:26px 0 18px}.paragraph{margin:0 0 14px;font-size:17px;text-align:justify}.para-label{font-size:11px;color:var(--muted);border:1px solid var(--line);padding:2px 5px;margin-right:8px}.content-box{margin:24px 0;padding:18px;border-radius:6px}.official{border-left:4px solid var(--official);background:#f2f9fa}.knowledge{border-left:4px solid var(--kp);background:#fff8e9}.ai{border-left:4px solid var(--ai);background:#f8f3ff}.tag{display:inline-block;font-size:10px;letter-spacing:.08em;padding:2px 6px;border-radius:3px;color:#fff;margin-bottom:9px}.official .tag{background:var(--official)}.knowledge .tag{background:var(--kp)}.ai .tag{background:var(--ai)}.kp-list{display:grid;gap:8px}.kp{padding:10px 12px;background:#fff;border:1px solid #ecd6aa}.relations{font-size:13px}.question-mini{padding:11px 0;border-top:1px solid #d9cbea}.panel{max-width:1160px;margin:30px auto;padding:0 24px}.narrow{max-width:820px}.row{display:flex;justify-content:space-between;align-items:center}form{display:flex;gap:8px}input{flex:1;padding:12px 14px;border:1px solid var(--line);background:#fff;font-size:16px}button{font:inherit}.panel>button,form button,.row button,.action{border:0;background:var(--accent);color:#fff;padding:10px 16px;cursor:pointer}.result{padding:16px 0;border-bottom:1px solid var(--line);cursor:pointer}.result b{color:var(--accent)}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:13px}.card{background:var(--card);border:1px solid var(--line);padding:15px}.card .number{font-size:24px;color:var(--accent);font-family:Georgia,serif}.filters{display:flex;gap:7px;margin-bottom:18px;flex-wrap:wrap}.filters button{border:1px solid var(--line);background:#fff;padding:7px 10px;cursor:pointer}.quiz-card{background:var(--card);border:1px solid var(--line);padding:20px;margin:16px 0}.option{display:block;padding:8px;margin:4px 0;border:1px solid transparent}.option:hover{background:#f3efe7}.feedback{padding:10px;margin-top:10px}.feedback.ok{background:#e4f3e9;color:#205b37}.feedback.bad{background:#f7e4e1;color:#832f23}pre{white-space:pre-wrap;background:#222d35;color:#dce8ed;padding:18px;overflow:auto}footer{text-align:center;color:var(--muted);padding:28px}@media(max-width:780px){header{display:block}.summary{margin-top:20px}#library.active{display:block}aside{position:static;max-height:430px;border-right:0}#article{padding:24px 18px}.cards{grid-template-columns:1fr}}