
:root{--navy:#173650;--blue:#356e98;--gold:#d9b965;--cream:#fff9e9;--line:#dfd8c7;--ink:#19354e;--muted:#667b8d}
*{box-sizing:border-box}html,body{margin:0;height:100%;font-family:"Segoe UI","Microsoft YaHei",Arial,sans-serif;color:var(--ink)}body{background:#fbf6e9}
header{height:54px;background:var(--blue);color:white;display:flex;align-items:center;padding:0 22px;gap:18px;box-shadow:0 2px 5px #0002}header strong{font-size:18px}header span{font-size:13px;opacity:.86}header a{margin-left:auto;color:white;font-size:13px}
.layout{display:grid;grid-template-columns:290px minmax(0,1fr);height:calc(100vh - 54px)}nav{background:white;border-right:1px solid var(--line);overflow:auto;padding:18px 10px}nav h2{margin:0 4px 16px;background:#e6cd8f;border-radius:7px;padding:11px;font-size:14px;text-align:center}nav button{display:flex;align-items:flex-start;gap:12px;width:100%;border:0;background:transparent;border-radius:6px;text-align:left;padding:11px 9px;color:var(--ink);cursor:pointer;line-height:1.4}nav button:hover{background:#f5f0e4}nav button.active{background:#eaf0f5;color:#276397;font-weight:600}nav .num{flex:none;display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:#e2c77f;font-size:12px;color:#30465e}nav small{display:block;margin:22px 7px;color:var(--muted);line-height:1.5}
main{overflow:auto;min-width:0}.page{display:none;min-height:100%;padding:34px}.page.active{display:block}.paper{max-width:1000px;margin:auto;background:white;border:1px solid #e8e2d6;border-radius:8px;padding:36px 44px;box-shadow:0 4px 18px #1e345210}.paper h1{margin:0 0 12px;font-size:38px;font-weight:500;text-align:center}.paper h2{font-size:21px;margin:24px 0 13px}.paper p,.paper li{font-size:16px;line-height:1.75}.paper a{color:#92700e}.eyebrow{font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:#93742b;margin-bottom:20px}.author{border-top:1px solid var(--line);padding-top:16px;margin-top:22px}
.research-intro{text-align:center;margin-bottom:23px}.cost{display:inline-block;margin:10px;padding:10px 24px;border:1px solid #e4d8b9;border-radius:7px;background:#fff9ea;font-weight:600}.tech-tree{max-width:880px;margin:0 auto}.tech-row{display:flex;justify-content:center;gap:14px;margin:12px auto}.tech{min-width:120px;max-width:180px;text-align:center;padding:12px 15px;border:1px solid #d9dfe3;border-radius:8px;background:#fff;font-size:14px}.tech.open{background:#cffcef;border-color:#a7daca}.tech.active{background:#fcf0ce;border-color:#d9ba69;font-weight:600}.tech-row:not(:last-child):after{content:"";position:absolute}.tech-legend{display:flex;justify-content:center;gap:18px;flex-wrap:wrap;font-size:13px;color:#526778;margin:2px auto 24px}.tech-legend span{display:inline-flex;align-items:center;gap:5px}.tech-legend i{width:13px;height:13px;border:1px solid #d9dfe3;border-radius:3px;display:inline-block}.research-note{color:var(--muted);font-size:13px;text-align:center;margin-top:28px}
.map-page{padding:0;height:100%;min-height:660px}.map-head{height:41px;background:#8d8e8e;color:white;display:flex;align-items:center;padding:0 20px;font-size:13px}.map-head strong{margin-right:20px}.map-layout{display:grid;grid-template-columns:minmax(520px,1fr) 290px;min-height:calc(100% - 41px)}.map-workspace{background:#fff9e9;min-width:0;padding:18px;display:flex;flex-direction:column;gap:13px}.map-caption{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}.map-caption h1{font-size:21px;margin:0}.map-caption p{font-size:12px;color:#6d746c;margin:4px 0 0}.map-caption .legend{display:flex;flex-wrap:wrap;gap:8px;font-size:11px}.swatch{display:inline-block;width:11px;height:11px;border-radius:2px;margin-right:3px}.map-frame{flex:1;min-height:530px;border:1px solid #e1d7bf;border-radius:8px;overflow:auto;background-color:#f2e8ca;background-image:linear-gradient(#bca9774b 1px,transparent 1px),linear-gradient(90deg,#bca9774b 1px,transparent 1px);background-size:18px 18px;display:flex;align-items:center;justify-content:center}.map-frame svg{width:min(100%,900px);height:auto;min-height:500px;max-height:calc(100vh - 160px)}.map-frame text{font-family:"Segoe UI","Microsoft YaHei",Arial,sans-serif;pointer-events:none}.map-note{font-size:12px;color:#655b45;line-height:1.5}.stats{background:#fff;border-left:1px solid #e6decf;overflow:auto;padding:15px 13px}.stats .culture{background:#686dc4;color:white;padding:5px 12px;border-radius:4px;font-size:12px;display:inline-block}.stats h2{font-size:15px;margin:9px 0 12px}.stats h3{background:#f6e4ae;border-top:1px solid #dabb67;color:#584411;font-size:12px;padding:5px 7px;margin:15px 0 6px}.stats .summary{font-size:13px;margin:5px 0}.pills{display:flex;gap:6px;flex-wrap:wrap}.pill{border:1px solid #d5b969;border-radius:6px;padding:4px 7px;font-size:12px}.stats table{border-collapse:collapse;width:100%;font-size:11px}.stats th{background:#fcf1ce}.stats td,.stats th{padding:5px 3px;text-align:right}.stats td:first-child,.stats th:first-child{text-align:left}.stats tr:nth-child(even){background:#f7f8f9}.stats footer{font-size:12px;padding:10px 0}.stage-tag{font-size:11px;color:#7b621d;background:#f7ebc9;border-radius:3px;padding:3px 6px}
@media(max-width:900px){.layout{grid-template-columns:215px minmax(0,1fr)}.map-layout{display:block}.map-workspace{min-height:630px}.stats{border-left:0;border-top:1px solid var(--line)}}@media(max-width:650px){header span{display:none}.layout{display:block;height:auto}nav{position:sticky;top:0;z-index:2;max-height:170px;border-bottom:1px solid var(--line)}nav h2{display:none}nav button{display:inline-flex;width:auto;margin:2px}.page{padding:15px}.paper{padding:24px}.map-page{padding:0}.map-workspace{padding:12px}.map-layout{min-height:0}}


.detail-card{background:#f7f3e9;border:1px solid #d9caa6;border-radius:7px;padding:11px;margin:10px 0 15px;font-size:12px;line-height:1.5}
.detail-card h3{background:none;border:0;padding:0;margin:0 0 7px;font-size:14px;color:#173650}
.detail-card p{margin:5px 0}.detail-card .flow{display:flex;align-items:center;gap:5px;flex-wrap:wrap;margin-top:7px}
.detail-card .resource{background:white;border:1px solid #cfc3a5;border-radius:4px;padding:4px 5px}.detail-card .arrow{font-weight:700;color:#97742f}
.detail-card .hint{color:#6e7580;font-size:11px}.map-building,.map-region{cursor:pointer}.map-building:hover rect{filter:brightness(1.1)}.map-building.selected rect{stroke:#163a60;stroke-width:3}.map-region:hover rect{stroke:#225b85;stroke-width:2}
.map-frame{align-items:flex-start;justify-content:flex-start}.map-frame svg{max-height:none;min-height:500px}.map-note strong{color:#6a4c1d}
.paper em{font-style:italic}.paper ol{padding-left:25px}.guide-table{width:100%;border-collapse:collapse;margin:18px 0;font-size:15px}.guide-table th,.guide-table td{border:1px solid #ded5bf;padding:9px 12px;text-align:left}.guide-table th{background:#f9edce}.guide-table tr:nth-child(even){background:#fcfaf5}

.tech-tree{max-width:880px;overflow-x:auto}.tech-row{gap:16px;margin:0 auto 16px;min-height:46px}.tech-row .tech{min-width:0;max-width:none;min-height:46px;padding:11px 14px;white-space:nowrap;display:grid;place-items:center}.map-frame{align-items:flex-start;justify-content:flex-start}.map-frame svg{max-height:none;min-height:500px}.map-note strong{color:#6a4c1d}.detail-card{background:#f7f3e9;border:1px solid #d9caa6;border-radius:7px;padding:11px;margin:10px 0 15px;font-size:12px;line-height:1.5}.detail-card h3{background:none;border:0;padding:0;margin:0 0 7px;font-size:14px;color:#173650}.detail-card p{margin:5px 0}.detail-card .flow{display:flex;align-items:center;gap:5px;flex-wrap:wrap;margin-top:7px}.detail-card .resource{background:white;border:1px solid #cfc3a5;border-radius:4px;padding:4px 5px}.detail-card .arrow{font-weight:700;color:#97742f}.detail-card .hint{color:#6e7580;font-size:11px}.map-building,.map-region{cursor:pointer}.map-building:hover rect{filter:brightness(1.1)}.map-building.selected rect{stroke:#163a60;stroke-width:3}.map-region:hover rect{stroke:#225b85;stroke-width:2}.paper ol{padding-left:25px}.paper em{font-style:italic}.archive-meta{margin:0 4px 13px;padding:9px 10px;border:1px solid #e4dac3;border-radius:6px;background:#fcf8ed;color:#536276;font-size:11px;line-height:1.55}.archive-meta strong{color:#264967}.archive-meta details{margin-top:4px}.archive-meta summary{cursor:pointer;color:#356e98}.archive-meta code{font-size:10px;overflow-wrap:anywhere;word-break:break-all}header a.catalog-link{margin-left:0}