@charset "UTF-8";
:root{--ink:#172e36;--muted:#758185;--paper:#f5f4ee;--teal:#267d70;--amber:#efb65e;--border:#dedfd6;--white:#fffef9;font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,input,a{-webkit-tap-highlight-color:transparent}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.38}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #e89d33;outline-offset:4px}button{touch-action:manipulation}a{color:inherit;text-decoration:none}.app-shell{max-width:1260px;margin:auto;padding:0 46px}.topbar{height:88px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:18px}.brand{display:flex;gap:12px;align-items:center;font-weight:750;font-size:16px;letter-spacing:1px}.brand-icon{display:grid;place-items:center;background:var(--ink);color:var(--amber);width:39px;height:39px;border-radius:50%;font-size:29px;font-weight:400}.icon-button{border:1px solid #ccd2ca;background:transparent;border-radius:50%;width:31px;height:31px;color:var(--ink);font-weight:700}.intro-heading{display:flex;justify-content:space-between;align-items:center;padding:36px 0 30px}.eyebrow{font-size:11px;letter-spacing:1.4px;font-weight:700;color:var(--teal);margin:0 0 11px;line-height:1.6}.eyebrow>span:first-child{width:6px;height:6px;border-radius:50%;background:var(--teal);display:inline-block;margin:0 8px 1px 0}h1{font-size:43px;letter-spacing:-1.5px;line-height:1.3;margin:0;font-weight:850}h1>span:not(.title-arrow){color:var(--teal)}h1 .title-arrow{color:var(--teal);font-size:43px;display:inline-block;margin-left:14px;font-weight:400}.game-layout{display:grid;grid-template-columns:278px minmax(0,1fr);gap:22px;align-items:stretch}.journey-panel{background:var(--ink);border-radius:17px;padding:27px 24px;color:#f5f4ee;position:relative;overflow:hidden}.journey-panel h2{font-size:18px;margin:15px 0 27px;letter-spacing:.4px}.journey-list{display:flex;flex-direction:column;gap:6px}.journey-item{display:flex;align-items:center;gap:13px;position:relative;padding:16px 10px;border-radius:10px;color:#b7c6c5}.journey-item.active{background:#2b444a;color:#fff}.journey-item.done{color:#b7dfd0}.journey-num{border:1px solid #60787b;border-radius:50%;width:31px;height:31px;display:grid;place-items:center;font:11px ui-monospace,monospace;flex-shrink:0}.active .journey-num{background:var(--amber);border-color:var(--amber);color:var(--ink)}.done .journey-num{background:#40776c;border-color:#40776c;color:#fff}.journey-item 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var(--border);border-radius:17px;padding:25px 28px 20px}.level-header{display:flex;align-items:center;justify-content:space-between}.level-header h2{font-size:24px;margin:0;font-weight:800;letter-spacing:.5px}.difficulty{font-size:12px;letter-spacing:.6px;color:var(--teal);background:#e9f1e8;padding:6px 10px;border-radius:5px}.mission{font-size:13px;line-height:1.8;color:#667677;margin:12px 0 17px;min-height:21px}.map-wrap{background:#edf0e7;border:1px solid #dce2d6;border-radius:10px;padding:13px 16px 12px;background-image:radial-gradient(#819a871f .8px,transparent .8px);background-size:13px 13px}.map-topline{display:flex;justify-content:space-between;color:#748176;font-size:9px;letter-spacing:1px;margin-bottom:13px}.map-topline>span:first-child{font-weight:700}.board-region{position:relative;margin:0 34px;max-width:450px;margin-inline:auto;padding:0 29px}.board{display:grid;grid-template-columns:repeat(var(--size),1fr);gap:3px;position:relative;aspect-ratio:1;isolation:isolate}.tile{position:relative;min-width:0;border:1px solid #d1d9cf;background:#fbfcf5;border-radius:5px;padding:0;aspect-ratio:1;color:var(--ink);transition:background .16s,border-color .16s,box-shadow .16s;overflow:visible;display:block}.tile:hover:not(:disabled){border-color:#7baba0;background:#f0f6e9}.tile:disabled{opacity:1}.tile.connected{background:#d9eddf;border-color:#9fcab6}.tile.fixed{background:#e2e4db;border-color:#c4cabd}.tile.connected.fixed{background:#cce1d7}.track-svg{display:block;width:100%;height:100%;pointer-events:none}.rail-bed{stroke:#bac4bb;stroke-width:14;fill:none;stroke-linecap:butt}.rail-inner{stroke:#f9faf3;stroke-width:8;fill:none}.rail-ties{stroke:#87968e;stroke-width:10;fill:none;stroke-dasharray:2 7}.rail-center{stroke:#edf1e7;stroke-width:5;fill:none}.connected .rail-bed{stroke:#337b67}.connected .rail-inner,.connected 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var(--size));transform:translateY(-50%)}.map-legend{display:flex;gap:14px;align-items:center;font-size:11px;color:#798477;margin-top:14px;flex-wrap:wrap;line-height:1.5}.map-legend>span{display:flex;align-items:center;gap:4px}.legend-line{width:15px;height:4px;background:#398c70;border-radius:5px}.legend-station{font-size:12px;color:#b28839;font-style:normal}.legend-fixed{font-size:12px;font-style:normal}.legend-tip{margin-left:auto}.status-row{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 0 13px;min-height:56px}.status-message{font-size:11px;line-height:1.7;color:#61776b}.status-message.error{color:#b26046}.status-message.success{color:#267d70;font-weight:700}.move-stat{font-size:10px;color:#879187;white-space:nowrap}.move-stat 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2px}.tile-label{font-size:6px}.terrain-name{font-size:6px}.board-region{padding:0 22px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

.knowledge-modal{text-align:left;max-width:520px}
.knowledge-kicker{display:flex;justify-content:space-between;gap:12px;align-items:center;margin:0 0 12px;font-size:12px;color:var(--teal);letter-spacing:.4px}
.knowledge-kicker span:last-child{color:#758177;letter-spacing:0;text-align:right}
.knowledge-modal h2{font-size:24px;margin-bottom:14px}
.knowledge-figure{margin:0 0 14px}
.knowledge-art{border:1px solid #d5e0d4;border-radius:14px;overflow:hidden;background:#e7efe8;box-shadow:inset 0 0 0 1px #ffffff80}
.knowledge-art svg{display:block;width:100%;height:auto}
.knowledge-figure figcaption{margin-top:8px;font-size:12px;line-height:1.6;color:#6a7b6e}
.knowledge-modal .modal-lead{font-size:14px;line-height:1.85;color:#5f6f63;margin-bottom:22px}
@media(max-width:520px){.knowledge-modal{padding:24px 18px}.knowledge-modal h2{font-size:21px}}