:root{--bg: #eef1f5;--surface: #ffffff;--fg: #17202c;--muted: #5a6575;--line: #d5dce4;--accent: #1b4f93;--accent-fg: #ffffff;--land: #dfe5dc;--land-hit: #b4c9ea;--coast: #97a4b2;--sea: #e4ebf2;--dot: #7f8a98;--hit: #f2b705;--hit-stroke: #3a2e00;--sel: #1b4f93;--halo: #ffffff;--sign-bg: #4a4f57;--sign-fg: #ffffff;--font: "BIZ UDPGothic", "Hiragino Sans", "Yu Gothic UI", "Meiryo", sans-serif;--fs-xs: .75rem;--fs-sm: .8125rem;--fs-md: .9375rem;--fs-lg: 1.125rem;--fs-xl: 1.5rem;color-scheme:light}@media(prefers-color-scheme:dark){:root{--bg: #0e131a;--surface: #161d26;--fg: #e4e9f0;--muted: #98a4b4;--line: #2a3542;--accent: #2f65b0;--accent-fg: #ffffff;--land: #27313b;--land-hit: #284565;--coast: #4b5967;--sea: #111821;--dot: #75828f;--hit: #f5c21b;--hit-stroke: #1a1400;--sel: #8ab8ff;--halo: #111821;--sign-bg: #2b3038;--sign-fg: #f2f4f7;color-scheme:dark}}*{box-sizing:border-box}[hidden]{display:none!important}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--font);font-size:var(--fs-md);line-height:1.6}button,input,select,textarea{font:inherit;color:inherit}a{color:var(--sel)}:focus-visible{outline:2px solid var(--sel);outline-offset:2px}.topnav{position:sticky;top:0;z-index:20;background:var(--surface);border-bottom:1px solid var(--line);padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}.topnav-in{max-width:1320px;margin:0 auto;display:flex;align-items:center;gap:4px 20px;flex-wrap:wrap;min-height:48px}.brand{font-weight:700;color:var(--fg);text-decoration:none;letter-spacing:.02em}.topnav nav{display:flex;gap:2px;flex-wrap:wrap}.topnav nav a{color:var(--muted);text-decoration:none;padding:6px 10px;border-radius:6px;font-size:var(--fs-sm)}.topnav nav a:hover{color:var(--fg);background:var(--bg)}.topnav nav a[aria-current=page]{color:var(--fg);font-weight:700;box-shadow:inset 0 -2px 0 var(--accent);border-radius:0}@media(max-width:700px){.topnav nav{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;max-width:100%}.topnav nav::-webkit-scrollbar{display:none}.topnav nav a{flex:none}}.page{max-width:1320px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-block:16px 40px}.foot{max-width:1320px;margin:0 auto;border-top:1px solid var(--line);padding:12px max(16px,env(safe-area-inset-right,0px)) max(16px,env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px));font-size:var(--fs-xs);color:var(--muted)}.foot a{color:var(--muted)}h1{font-size:var(--fs-xl);margin:4px 0 12px;line-height:1.3}h2{font-size:var(--fs-lg);margin:24px 0 8px}.seg{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;flex-shrink:0;background:var(--surface)}.seg button{border:0;background:transparent;padding:6px 12px;cursor:pointer;font-size:var(--fs-sm)}.seg button+button{border-left:1px solid var(--line)}.seg button[aria-pressed=true]{background:var(--accent);color:var(--accent-fg)}.chip{border:1px solid var(--line);background:var(--bg);border-radius:999px;padding:4px 12px;cursor:pointer;font-size:var(--fs-sm)}.chip[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:var(--accent-fg)}.btn{border:1px solid var(--line);background:var(--surface);border-radius:8px;padding:7px 14px;cursor:pointer;font-size:var(--fs-sm)}.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-fg);font-weight:700}.btn:disabled{opacity:.5;cursor:default}.field{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--bg)}.muted{color:var(--muted)}.leaflet-container{font-family:var(--font);background:var(--sea)}.leaflet-container .leaflet-control-attribution{font-size:10px;background:color-mix(in srgb,var(--surface) 80%,transparent);color:var(--muted)}.leaflet-container .leaflet-control-attribution a{color:var(--muted)}.leaflet-container .leaflet-bar a,.leaflet-container .leaflet-bar a:hover{background:var(--surface);color:var(--fg);border-bottom-color:var(--line)}.leaflet-container .leaflet-bar{border:1px solid var(--line);box-shadow:none}.leaflet-container .tm-ctl a{font-size:17px;font-weight:400}.tm-hint{position:absolute;inset:0;z-index:1000;display:grid;place-items:center;padding:12px;text-align:center;background:#00000073;color:#fff;font-size:var(--fs-md);pointer-events:none;opacity:0;transition:opacity .25s}.tm-hint.on{opacity:1}@media(prefers-color-scheme:dark){.leaflet-tile-pane{filter:invert(1) hue-rotate(180deg) brightness(.92) contrast(.85)}}