:root{color-scheme:dark;--bg:#0d1a1d;--panel:#14272a;--panel2:#1b3033;--ink:#ecede4;--muted:#99aaa8;--gold:#d5b278;--line:#314447;--teal:#81b8b6;--serif:Georgia,'Noto Serif SC','Songti SC',SimSun,serif;--sans:system-ui,-apple-system,'Microsoft YaHei',sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.6 var(--sans)}button,input,select{font:inherit}button{cursor:pointer;color:inherit;border:1px solid var(--line);background:var(--panel2);border-radius:6px;padding:9px 13px;transition:background .15s,border-color .15s,transform .15s}button:hover:not(:disabled){background:#2b4446;border-color:#77918b}button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--gold);outline-offset:3px}button:disabled{opacity:.4;cursor:not-allowed}.primary{background:var(--gold);border-color:var(--gold);color:#17282a;font-weight:700}.primary:hover:not(:disabled){background:#ead0a1;border-color:#ead0a1}.ghost{background:transparent}.small{font-size:12px;padding:6px 10px}.muted{color:var(--muted)}.eyebrow{font-size:10px;letter-spacing:3px;color:var(--gold);text-transform:uppercase}.serif{font-family:var(--serif)}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:500}a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}input,select{min-width:0;background:#102124;border:1px solid var(--line);border-radius:5px;color:var(--ink);padding:10px 12px}label{color:var(--muted);font-size:12px}svg{display:block}.badge{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:4px;padding:3px 8px;font-size:11px;color:var(--muted)}.pip{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--player,var(--gold))}.rule{height:1px;background:var(--line);margin:18px 0}.row{display:flex;align-items:center;gap:8px}.between{justify-content:space-between}.stack{display:grid;gap:12px}.full{width:100%}.hidden{display:none!important}
.landing{min-height:100vh;display:grid;grid-template-columns:minmax(400px,1fr) minmax(380px,480px);gap:8vw;max-width:1440px;margin:auto;padding:9vh 7vw 6vh;align-items:center}.brand{display:flex;align-items:center;gap:13px}.brand img{width:42px;height:42px}.brand .title{font:22px var(--serif);letter-spacing:3px}.brand small{display:block;font-size:9px;letter-spacing:2px;color:var(--muted);margin-top:4px}.hero-title{font:clamp(58px,6vw,90px)/1.18 var(--serif);letter-spacing:8px;margin:55px 0 23px}.hero-title span{display:block;font:italic 26px/1.5 var(--serif);color:var(--gold);letter-spacing:3px;margin-top:14px}.intro-copy{max-width:390px;color:#afbfba;line-height:2;font-size:15px}.hero-meta{display:flex;gap:28px;margin-top:30px;font-size:12px;color:var(--muted)}.hero-meta b{display:block;color:var(--ink);font:26px var(--serif);margin-bottom:4px}.cityscape{margin-top:35px;width:100%;max-width:560px;opacity:.75}.setup-panel{border:1px solid #405052;background:linear-gradient(145deg,#1e3536,#14272a);border-radius:12px;padding:32px;box-shadow:0 30px 90px #0004}.setup-panel h2{font:27px var(--serif);margin:5px 0 8px}.setup-panel .count{display:flex;gap:7px;margin:10px 0 20px}.count button{flex:1}.count button.active{border-color:var(--gold);color:var(--gold);background:#283c37}.player-config{display:grid;grid-template-columns:12px minmax(0,1fr) 110px;align-items:center;gap:9px;margin:12px 0}.player-config input{width:100%}.player-config select{width:100%;padding:10px 8px}.seed-row{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:20px 0}.seed-row input{width:160px;font:12px monospace}.setup-actions{display:grid;gap:9px}.setup-actions .primary{padding:13px}.footnote{font-size:11px;line-height:1.8;color:var(--muted);margin-top:20px}.corner-note{position:fixed;bottom:15px;left:28px;font-size:10px;letter-spacing:2px;color:#718681}
.topbar{height:76px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 25px;background:#102124;gap:15px}.topbar .brand img{width:36px;height:36px}.topbar .brand .title{font-size:20px}.era-strip{display:flex;align-items:center;gap:18px}.era-strip strong{font:21px var(--serif);color:var(--gold)}.era-strip .track{display:flex;align-items:center;gap:5px}.track i{width:17px;height:3px;background:#365053}.track i.on{background:var(--gold)}.top-controls{display:flex;gap:7px;align-items:center}.autosave{font-size:10px;color:var(--muted)}
.workspace{display:grid;grid-template-columns:235px minmax(380px,1fr) 310px;height:calc(100vh - 265px);min-height:470px}.sidebar{overflow:auto;padding:20px 17px;border-right:1px solid var(--line);background:#102124}.section-label{font-size:10px;color:var(--muted);letter-spacing:2px;margin-bottom:11px}.player{border:1px solid var(--line);border-radius:7px;padding:13px;margin-bottom:9px;border-left:3px solid var(--player)}.player.active{background:#233a3b;border-color:var(--player)}.player .name{font-weight:600;font-size:13px;display:flex;gap:6px;align-items:center}.player .ai-badge{font-size:9px;color:var(--muted);border:1px solid var(--line);padding:0 4px;border-radius:3px;font-weight:400}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:10px}.stats b{font:22px var(--serif)}.stats small{display:block;color:var(--muted);font-size:9px}.player-detail{font-size:10px;color:var(--muted);margin-top:9px;display:flex;justify-content:space-between}.market-box{margin-top:24px}.market-row{margin:12px 0}.market-cubes{display:flex;gap:3px;margin:7px 0}.cube{width:10px;height:10px;border:1px solid #647475;border-radius:2px;background:#293e42}.cube.filled.coal{background:#a0afb6;border-color:#a0afb6}.cube.filled.iron{background:#d19670;border-color:#d19670}.market-price{font:17px var(--serif);color:var(--gold)}.legend{font-size:10px;color:var(--muted);line-height:2;margin-top:24px}.legend span{display:inline-block;width:20px;margin-right:5px;border-top:2px solid #76a7ac;vertical-align:middle}.legend .rail{border-top:2px dashed #b5ac97}.legend .locked{border-top:2px dotted #415257}.legend .ownership{width:8px;height:8px;border-radius:50%;background:var(--teal);border:0}
.board-panel{position:relative;min-width:0;overflow:hidden;background:radial-gradient(ellipse at 50% 40%,#233b3a,#13292c 70%)}.board-toolbar{position:absolute;top:14px;left:17px;right:17px;display:flex;justify-content:space-between;align-items:flex-start;z-index:2;pointer-events:none}.board-toolbar>*{pointer-events:auto}.board-title{font:19px var(--serif);letter-spacing:2px;color:#d7d8c9}.board-sub{font-size:9px;letter-spacing:2px;color:#8ba29b}.map-scroll{height:100%;overflow:auto;padding:70px 15px 40px;scrollbar-color:#56716d #15292b}.map-wrap{min-width:540px;margin:0 auto;max-width:1020px;transition:width .15s}.board-map{width:100%;height:auto}.map-caption{position:absolute;bottom:9px;left:17px;color:#829b93;font-size:10px;pointer-events:none}.map-link{fill:none;stroke:#73999c;stroke-width:2;opacity:.5}.map-link.rail{stroke-dasharray:5 5;stroke:#b3a98e;opacity:.5}.map-link.other-era{stroke:#53716b;stroke-width:1;stroke-dasharray:2 7;opacity:.3}.map-link.built{opacity:1;stroke-width:6;stroke:var(--player);stroke-linecap:round}.link-hit{stroke:transparent;stroke-width:24;fill:none;cursor:pointer}.map-link.hot{stroke:#e6c78d;stroke-width:5;opacity:.95;filter:drop-shadow(0 0 4px #d7bc7744)}.map-node .city-bg{fill:#142a2d;stroke:#4f6965;stroke-width:1}.map-node .cn{font:12px var(--sans);fill:#dfdfcf;letter-spacing:1px}.map-node .en{font:9px Georgia,serif;fill:#819b95;letter-spacing:1px}.map-slot{fill:#263d3d;stroke:#62766d;stroke-width:1}.slot-icon{font:11px var(--sans);fill:#aab7a8;text-anchor:middle}.map-tile{stroke-width:2;fill:#203436}.map-tile.flipped{fill:#102327}.map-node .hot{stroke:var(--gold);stroke-width:2.5;filter:drop-shadow(0 0 5px #d1b16a55)}.map-node.selectable{cursor:pointer}.map-node.selectable .city-bg{stroke:#b5a36c;fill:#2a423d}.tile-text{font:11px var(--sans);text-anchor:middle}.tile-resource{font:9px var(--sans);text-anchor:middle;fill:#e9dbb4}.market-label{fill:#d9bb84;font:12px var(--sans);text-anchor:middle}.merchant-type{font:10px var(--sans);fill:#ccbc96;text-anchor:middle}.region-label{font:italic 16px Georgia;fill:#4f6c62;letter-spacing:4px}.farm-label{font:10px var(--sans);fill:#a6b4a3;text-anchor:middle}
.action-panel{border-left:1px solid var(--line);background:#122629;padding:20px 18px;overflow:auto}.turn-heading{display:flex;align-items:center;gap:8px;margin-bottom:5px;font-size:16px}.action-count{color:var(--gold);font:25px var(--serif)}.turn-hint{font-size:12px;color:var(--muted);line-height:1.9;margin-top:8px}.action-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:19px 0}.action-button{text-align:left;min-height:69px;padding:10px 12px}.action-button .num{font:11px Georgia;color:var(--gold);margin-right:5px}.action-button strong{font-weight:500;font-size:14px}.action-button small{display:block;color:var(--muted);font-size:10px;margin-top:5px}.action-button.selected{border-color:var(--gold);background:#2c4039}.action-button.wide{grid-column:span 2;min-height:48px}.wizard-title{font:19px var(--serif);line-height:1.7;margin:12px 0}.wizard-steps{display:flex;gap:5px;margin:14px 0}.wizard-steps span{height:3px;background:#314a48;flex:1}.wizard-steps span.on{background:var(--gold)}.choice-list{display:grid;gap:7px;margin:13px 0}.choice-button{text-align:left;font-size:12px;padding:10px;line-height:1.7}.choice-button .type-dot{display:inline-block;width:5px;height:5px;background:var(--gold);border-radius:50%;margin-right:6px}.choice-button.selected{border-color:var(--gold)}.draft-banner{background:#223c39;border-left:2px solid var(--gold);padding:11px;font-size:11px;color:#c1c8b5;margin-bottom:13px}.draft-summary{font-size:12px;line-height:1.9;color:#bbc8bd;margin:12px 0}.error-box{font-size:12px;line-height:1.9;padding:13px;background:#52363244;border:1px solid #886157;border-radius:5px;color:#e5b7a3;margin:12px 0}.log-section{margin-top:22px;border-top:1px solid var(--line);padding-top:17px}.log-list{display:grid;gap:10px;font-size:11px;color:#9faeaa;line-height:1.8;max-height:255px;overflow:auto}.log-entry{padding-left:10px;border-left:2px solid var(--player,#526963)}.log-entry small{font-size:9px;color:#647e77;display:block}.ai-thinking{padding:24px 12px;text-align:center;color:var(--muted)}.thinking-dots{display:flex;gap:6px;justify-content:center;margin-bottom:15px}.thinking-dots i{width:5px;height:5px;background:var(--gold);border-radius:50%;animation:pulse 1.5s infinite}.thinking-dots i:nth-child(2){animation-delay:.2s}.thinking-dots i:nth-child(3){animation-delay:.4s}@keyframes pulse{0%,100%{opacity:.25}50%{opacity:1}}
.hand-panel{border-top:1px solid var(--line);height:189px;background:#102124;display:grid;grid-template-columns:235px 1fr}.stock-summary{padding:15px 17px;border-right:1px solid var(--line);overflow:auto}.stock-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.stock-item{padding:6px;border:1px solid #2e4545;border-radius:4px;font-size:10px;color:var(--muted);background:#172f31;cursor:pointer}.stock-item:hover{border-color:var(--gold)}.stock-item b{font-size:11px;color:var(--ink);font-weight:400;display:block}.stock-item small{font-size:9px}.hand-main{padding:12px 22px;overflow:hidden}.hand-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:9px;font-size:11px;color:var(--muted)}.hand-cards{display:flex;gap:9px;overflow-x:auto;padding:3px 3px 7px;align-items:stretch}.card{width:112px;min-width:90px;max-width:130px;height:117px;padding:9px;display:flex;flex-direction:column;justify-content:space-between;align-items:flex-start;border:1px solid #4f6962;border-top:3px solid #81aaa2;background:linear-gradient(150deg,#2a4240,#1a3031);border-radius:5px;text-align:left;position:relative}.card.location{border-top-color:#7caaa4}.card.industry{border-top-color:#b3937e;background:linear-gradient(150deg,#3c3f34,#273530)}.card.wild{border-top-color:var(--gold);background:linear-gradient(150deg,#4d4731,#2e392e)}.card .card-kind{font-size:9px;color:#a3b4a7;letter-spacing:1px}.card .card-name{font:14px/1.5 var(--serif)}.card .card-bottom{font-size:9px;color:#93a99a}.card.chosen{border-color:var(--gold);background:#455440;transform:translateY(-3px);box-shadow:0 3px 14px #0004}.card.chosen:after{content:'✓';position:absolute;right:6px;top:4px;color:var(--gold)}.card.unavailable{opacity:.5}.hand-hidden{height:116px;display:flex;gap:10px;align-items:center;justify-content:center;color:#78928c;font-size:12px;border:1px dashed #344d47;border-radius:6px;background:repeating-linear-gradient(45deg,transparent,transparent 8px,#7e968504 8px,#7e968504 9px)}
.overlay{position:fixed;inset:0;background:#071418db;backdrop-filter:blur(9px);display:flex;align-items:center;justify-content:center;z-index:20;padding:24px}.dialog{width:min(620px,100%);max-height:88vh;overflow:auto;border:1px solid #51605b;border-radius:11px;padding:30px;background:linear-gradient(145deg,#233b3a,#13292c);box-shadow:0 30px 100px #0006}.dialog h2{font:29px var(--serif);margin:5px 0 18px}.dialog h3{font:18px var(--serif);color:var(--gold);margin:22px 0 10px}.dialog p{color:#afc0b6;font-size:13px;line-height:2;margin:10px 0}.dialog table{border-collapse:collapse;width:100%;font-size:12px;margin:12px 0}.dialog td,.dialog th{padding:10px;border-bottom:1px solid #3d534c;text-align:left;font-weight:400}.dialog th{color:var(--muted)}.dialog-close{float:right}.handoff-dialog{text-align:center;padding:50px 40px}.handoff-dialog .seal{width:80px;height:80px;border:1px solid var(--player);color:var(--player);border-radius:50%;display:grid;place-items:center;margin:0 auto 24px;font:32px var(--serif)}.handoff-dialog p{margin-bottom:28px}.winner{padding:16px;border:1px solid var(--gold);border-radius:7px;color:var(--gold);font:25px var(--serif);margin:15px 0}.stock-table{font-variant-numeric:tabular-nums}.stock-table .current{background:#d1b16a12}#toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%) translateY(20px);opacity:0;pointer-events:none;z-index:60;background:#d9c195;color:#17292b;padding:10px 18px;border-radius:6px;font-size:12px;max-width:90vw;transition:.2s}#toast.visible{opacity:1;transform:translateX(-50%) translateY(0)}
@media(min-width:1600px){.workspace{grid-template-columns:260px minmax(500px,1fr) 350px}.hand-panel{grid-template-columns:260px 1fr}.action-panel{padding:23px}.sidebar{padding:22px}.action-button{min-height:77px}}
@media(max-width:1100px){.workspace{grid-template-columns:180px minmax(350px,1fr) 270px}.hand-panel{grid-template-columns:180px 1fr}.sidebar{padding:14px 10px}.player{padding:10px}.stats b{font-size:19px}.topbar{padding:0 15px}.topbar .autosave,.era-strip .track{display:none}.action-panel{padding:16px 13px}.top-controls{gap:5px}.top-controls button{padding:6px 8px;font-size:11px}.stock-grid{grid-template-columns:repeat(2,1fr)}.hero-title{font-size:64px}.landing{gap:5vw;padding:6vh 5vw;grid-template-columns:1fr 390px}}
@media(max-width:850px){.workspace{grid-template-columns:minmax(350px,1fr) 260px;height:calc(100vh - 320px)}.sidebar{display:none}.hand-panel{grid-template-columns:1fr;height:244px}.stock-summary{display:none}.hand-main{padding:13px}.card{min-width:100px}.hand-cards{padding-bottom:12px}.topbar .brand small{display:none}.topbar .brand .title{font-size:17px}.era-strip{gap:9px}.era-strip strong{font-size:17px}.era-strip .badge{display:none}.landing{grid-template-columns:1fr;max-width:620px;padding:35px 24px 60px}.hero-title{font-size:60px;margin:30px 0 20px}.cityscape,.hero-meta{display:none}.intro-copy{max-width:none;margin-bottom:20px}.corner-note{position:static;text-align:center;margin-bottom:10px}.setup-panel{padding:25px}.top-controls button:nth-child(3){display:none}}
@media(max-width:620px){.topbar{height:auto;min-height:98px;flex-wrap:wrap;padding:12px;gap:10px}.topbar .brand img{width:28px;height:28px}.top-controls{width:100%;justify-content:flex-end;position:relative}.top-controls::before{content:'LOCAL · 本地测试版';font-size:9px;color:var(--muted);margin-right:auto}.workspace{display:flex;flex-direction:column;height:auto;min-height:0}.board-panel{height:70vh;min-height:450px}.action-panel{border-left:0;border-top:1px solid var(--line);max-height:none}.action-grid{grid-template-columns:repeat(3,1fr)}.action-button.wide{grid-column:auto}.log-list{max-height:150px}.hand-panel{height:auto;min-height:180px;position:sticky;bottom:0;z-index:5;box-shadow:0 -5px 30px #0004}.card{height:100px;min-width:88px;width:98px}.map-wrap{min-width:500px}.map-scroll{padding:60px 10px 30px}.action-count{font-size:20px}.hero-title{font-size:50px;letter-spacing:6px}.hero-title span{font-size:20px}.dialog{padding:23px}.setup-panel{padding:22px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
.mobile-status{display:none}
@media(max-width:850px){.mobile-status{display:flex;gap:20px;overflow:auto;white-space:nowrap;padding:10px 16px;border-bottom:1px solid var(--line);background:#102124;font-size:11px}.mobile-status small{display:block;color:var(--muted);font-size:10px;margin-top:3px}.workspace{height:calc(100vh - 380px)}}
@media(max-width:620px){.workspace{height:auto}.map-wrap{width:100%!important}}

/* Public decision notes for the new offline policies. */
.ai-decision{margin-top:18px;padding:12px;border:1px solid #b9955555;background:#121d22;border-radius:8px;font-size:12px;line-height:1.65}
.ai-decision summary{cursor:pointer;color:#d8b777;font-weight:700}
.ai-decision p{margin:9px 0;color:#c2cbd0}
.ai-decision small{display:block;color:#8d9ca4;font-size:10px;margin-top:8px}
.ai-plan-options>div{display:flex;justify-content:space-between;gap:8px;border-top:1px solid #ffffff12;padding:5px 0}
.ai-plan-options b{font-variant-numeric:tabular-nums;color:#d8b777}