:root{--bg: #22262c;--ink: #f5ecd6;--muted: #c5c8be;--panel: rgba(20, 22, 26, .72);--line: rgba(245, 236, 214, .16);--accent: #c45a3c;--font: "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Noto Sans SC", "Microsoft YaHei", "Heiti SC", sans-serif}*{box-sizing:border-box;margin:0;padding:0}html,body{width:100%;height:100%;overflow:hidden;background:var(--bg);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased;touch-action:none;overscroll-behavior:none;user-select:none;-webkit-user-select:none}#ui{position:fixed;inset:0;z-index:2;pointer-events:none;padding:max(8px,env(safe-area-inset-top)) max(10px,env(safe-area-inset-right)) max(8px,env(safe-area-inset-bottom)) max(10px,env(safe-area-inset-left))}.topbar{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}.title{background:var(--panel);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:12px;padding:8px 12px;max-width:min(72vw,420px)}.title h1{font-size:15px;font-weight:700;letter-spacing:.02em;line-height:1.3}.title p{font-size:11px;color:var(--muted);margin-top:2px}#compass{width:46px;height:46px;border-radius:50%;background:var(--panel);border:1px solid var(--line);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);position:relative;flex-shrink:0}#compass .needle{position:absolute;left:50%;top:5px;width:0;height:0;border-left:5px solid transparent;border-right:5px solid transparent;border-bottom:12px solid #d4543a;transform:translate(-50%)}#compass .n{position:absolute;left:0;right:0;top:18px;text-align:center;font-size:10px;font-weight:700}.toolbar{position:absolute;left:50%;transform:translate(-50%);bottom:max(14px,env(safe-area-inset-bottom));display:flex;gap:8px;pointer-events:auto;background:var(--panel);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:999px;padding:5px}.toolbar 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10px;font-size:11px;line-height:1.55;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);min-width:148px}.legend-body li{display:flex;align-items:center;gap:8px}.legend-body .note{display:block;margin-top:6px;color:var(--muted);font-size:10px;line-height:1.4;max-width:160px}.swatch,.mark{width:11px;height:11px;border-radius:2px;flex-shrink:0;box-shadow:0 0 0 1px #00000059}.mark.city{background:#c45a3c}.mark.gate{background:#786044;border-radius:50%}.mark.branch{background:#c8783c;transform:rotate(45deg)}.mark.foreign{background:#5a3c78}.mark.county{background:#963c22;border-radius:50%;width:8px;height:8px;margin-left:1.5px}.hint{position:absolute;left:50%;transform:translate(-50%);bottom:max(58px,calc(env(safe-area-inset-bottom) + 50px));font-size:11px;color:var(--muted);background:var(--panel);border-radius:999px;padding:4px 10px;opacity:.9;white-space:nowrap;transition:opacity .6s ease}.hint.fade{opacity:0;pointer-events:none}#loading{position:fixed;inset:0;z-index:5;background:#22262c;color:var(--ink);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;font-family:var(--font);font-size:14px;transition:opacity .35s ease}#loading.hide{opacity:0;pointer-events:none}.spin{width:28px;height:28px;border:3px solid rgba(245,236,214,.2);border-top-color:#c45a3c;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.label{font-family:var(--font);white-space:nowrap;pointer-events:none;line-height:1;font-weight:700;letter-spacing:.02em;transform:translate(-50%,-120%)}.label.city{font-size:13px;color:#fff6e2;text-shadow:0 0 3px #3c140e,0 1px 2px #3c140e,0 -1px 2px #3c140e,1px 0 2px #3c140e,-1px 0 2px #3c140e}.label.gate,.label.branch,.label.foreign{font-size:11px;color:#ffe8c4;text-shadow:0 0 3px #281c12,0 1px 2px #281c12,1px 0 2px #281c12,-1px 0 2px #281c12}.label.foreign{color:#ead8ff}.label.county{font-size:10px;color:#501e12;text-shadow:0 0 3px #faf2de,0 1px 2px #faf2de,1px 0 2px #faf2de,-1px 0 2px #faf2de}.label.geo{font-style:italic;font-weight:600;letter-spacing:.08em;pointer-events:none}.label.geo.mountain,.label.geo.pass{color:#e4d6c0;text-shadow:0 0 3px #2a2620,0 1px 2px #2a2620,1px 0 2px #2a2620,-1px 0 2px #2a2620}.label.geo.pass{color:#e8dcc8}.label.geo.river,.label.geo.lake,.label.geo.sea{color:#8eb8d4;text-shadow:0 0 3px #102028,0 1px 2px #102028,1px 0 2px #102028,-1px 0 2px #102028}.label.geo.tier1{font-size:15px}.label.geo.tier2{font-size:13px}.label.geo.tier3{font-size:12px}.legend.collapsed .legend-body{display:none}@media(max-height:500px){.title p,.hint{display:none}}.legend-body{max-height:60vh;overflow-y:auto;display:grid;grid-template-columns:auto auto;column-gap:12px;row-gap:2px}.legend-body .note{grid-column:1 / -1;max-width:240px}.toolbar 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