:root{color-scheme:dark;--bg:#07131f;--panel:#0b1b2a;--muted:#91a8b9;--text:#edf5f8;--accent:#69edc5;--line:#213645;--gold:#f4d28b}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:radial-gradient(ellipse at 78% 0,#102b32 0,transparent 36%),var(--bg);color:var(--text);font-family:Inter,Segoe UI,Arial,sans-serif;font-size:15px;line-height:1.6}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{cursor:pointer}button:disabled{cursor:wait;opacity:.6}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:4px}button{color:var(--text);background:#142b3b;border:1px solid var(--line);border-radius:8px}button:hover{border-color:var(--accent);color:var(--accent)}[hidden]{display:none!important}.topbar{max-width:1540px;margin:auto;padding:24px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px}.brand-symbol{font-size:45px;line-height:1;color:var(--accent)}.brand>a{font-size:22px;letter-spacing:-.7px;font-weight:700;line-height:1.1}.brand>a>span{font-weight:400}.brand small{display:block;font-size:10px;letter-spacing:1px;color:var(--muted);font-weight:400;margin-top:7px}.topbar nav{display:flex;gap:28px;font-size:13px;color:#b2c6d2}.topbar nav a:hover{color:var(--accent)}.languages{display:flex;gap:2px;padding:3px;border:1px solid var(--line);border-radius:9px}.languages button{border:0;background:transparent;padding:5px 10px;font-size:12px;font-weight:700}.languages .active{background:var(--accent);color:#08261e}main{max-width:1540px;margin:auto;padding:0 40px}.intro{display:flex;justify-content:space-between;gap:60px;align-items:end;padding:50px 0 34px}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:700;color:var(--accent);margin:0 0 15px}.eyebrow>span{width:7px;height:7px;display:inline-block;border-radius:50%;background:var(--accent);margin-right:9px;box-shadow:0 0 10px #69edc570}h1{font-weight:500;font-size:clamp(32px,3.5vw,54px);line-height:1.15;letter-spacing:-1.8px;margin:0 0 19px}.lead{max-width:700px;color:#aac1d0;font-size:16px;line-height:1.7;margin:0}.intro-note{max-width:270px;font-size:12px;border-left:1px solid #2e454d;padding-left:24px;flex-shrink:0}.intro-note p{color:var(--muted);margin:6px 0 10px}.intro-note a{color:var(--accent)}.note-icon{font-size:24px;color:var(--accent)}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:24px 0 30px;border-top:1px solid var(--line)}.stats>div{padding-left:20px;border-left:1px solid var(--line)}.stats>div:first-child{padding-left:0;border-left:0}.stats strong{display:block;font-size:30px;letter-spacing:-1px;font-weight:500;line-height:1.3;font-variant-numeric:tabular-nums}.stats span{display:block;font-size:11px;color:var(--muted);margin-top:5px}.atlas{border:1px solid #29414f;border-radius:14px;overflow:hidden;background:var(--panel);box-shadow:0 24px 75px #0003;scroll-margin-top:20px}.atlas-top{padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);font-size:13px}.atlas-top>div{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.atlas-status{width:6px;height:6px;border-radius:50%;background:var(--accent)}.snapshot{font-size:10px;color:var(--muted);margin-left:6px}.text-button{font-size:11px;border:0;background:transparent;padding:5px}.atlas-body{display:grid;grid-template-columns:320px minmax(0,1fr);height:680px}.sidebar{min-width:0;display:flex;flex-direction:column;background:#0a1a28;border-right:1px solid var(--line)}.search-area{padding:18px 16px 12px}.search-wrap{border:1px solid #294252;background:#07131f;border-radius:8px;display:flex;align-items:center;padding:0 12px;gap:8px}.search-wrap>span:first-child{font-size:23px;color:var(--muted);line-height:1}.search-wrap input{border:0;background:transparent;color:var(--text);width:100%;min-width:0;padding:10px 0;font-size:12px;outline:0}.search-wrap input::placeholder{color:#829cac}.search-wrap:focus-within{border-color:var(--accent)}.search-key{font:11px monospace;color:#8aa2b0;padding:0 5px;border:1px solid var(--line);border-radius:3px}.filters{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:12px}.filters label>span{display:block;font-size:10px;color:var(--muted);margin:0 0 4px 2px}.filters select{width:100%;border:1px solid var(--line);background:#102435;color:#c7d8e2;padding:7px 5px;font-size:11px;border-radius:6px}.tabs{display:flex;padding:0 16px;border-bottom:1px solid var(--line);gap:16px}.tabs button{border:0;border-bottom:2px solid transparent;border-radius:0;background:transparent;font-size:12px;padding:10px 0;color:var(--muted)}.tabs button.active{border-bottom-color:var(--accent);color:var(--accent)}.catalog,.detail{flex:1;overflow:auto;min-height:0;scrollbar-color:#365466 #0b1b2a;scrollbar-width:thin}.list-heading{padding:14px 16px 5px;font-size:10px;color:var(--muted);display:flex;justify-content:space-between}.route-item{display:flex;align-items:center;gap:12px;text-align:left;border:0;border-bottom:1px solid #192e3e;border-radius:0;width:100%;padding:13px 16px;background:transparent}.route-item:hover{background:#122d3b}.route-item>i{flex-shrink:0;width:5px;height:29px;border-radius:4px;background:var(--accent)}.route-item .point-icon{width:8px;height:8px;border-radius:50%;margin:0 1px 0 2px}.route-item>span{min-width:0;flex:1}.route-item strong{display:block;font-size:12px;line-height:1.45;font-weight:600;overflow-wrap:anywhere}.route-item 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#3e6472;border-radius:10px}.leaflet-popup-content{margin:13px 16px;font-size:12px;line-height:1.6}.leaflet-popup-content strong{font-size:13px}.leaflet-popup-content small{color:#a9c0ce}.leaflet-container a.leaflet-popup-close-button{color:#b4cfda;font-size:20px}.ocean-label{color:#5f879c;font-size:10px;text-transform:uppercase;letter-spacing:3px;white-space:nowrap;pointer-events:none;background:transparent;border:0;text-align:center;text-shadow:0 1px #051320}.legend{display:flex;flex-wrap:wrap;gap:12px;position:absolute;z-index:500;bottom:39px;left:16px;background:#071b29e8;border:1px solid #243c4b;border-radius:8px;padding:8px 11px;pointer-events:none;max-width:calc(100% - 32px);font-size:9px;color:#aec4d0;box-shadow:0 4px 15px #0003}.legend>span{display:flex;align-items:center;gap:6px}.legend i{display:inline-block}.legend .line{width:17px;height:0;border-top:2px solid #69edc5}.legend .dashed{border-top-style:dashed;border-color:#d5b5fe}.legend .point{width:6px;height:6px;background:var(--gold);border-radius:50%}.legend .station{width:7px;height:7px;background:#fff;border:1px solid #f4d28b;border-radius:50%}.layers{position:absolute;z-index:500;right:16px;top:62px;font-size:10px;background:#0b2130eb;border:1px solid #294252;border-radius:8px;padding:8px 11px;max-width:220px}.layers summary{cursor:pointer;color:#bed2db}.layers label{display:flex;align-items:center;gap:6px;padding-top:7px;color:#bdd1dd}.layers input{accent-color:var(--accent)}.map-hint{position:absolute;bottom:10px;left:16px;z-index:500;pointer-events:none;color:#8cabbc;font-size:9px;max-width:70%;text-shadow:0 1px 3px #000}.map-error{position:absolute;inset:0;z-index:700;background:#0b1b2aec;display:flex;justify-content:center;align-items:center;flex-direction:column}.map-error button{padding:10px 20px}.atlas-bottom{display:flex;gap:20px;justify-content:space-between;align-items:center;padding:11px 20px;font-size:10px;color:var(--muted);border-top:1px solid 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10px;margin-top:6px;text-align:left;width:100%;font-size:11px}.detail .related small{display:block;color:#87a7ba;font-size:9px;margin-top:3px}.detail .source{font-size:10px;color:var(--accent);display:block;margin-top:5px;overflow-wrap:anywhere}.detail .precision{font-size:10px;padding:10px;background:#112836;border-left:2px solid #698592;line-height:1.7}.detail .focus-button{width:100%;padding:8px;font-size:11px;margin:14px 0 0}.understanding{margin:68px 0 50px}.understanding h2,.methodology h2,.contact h2{font-size:28px;font-weight:500;line-height:1.35;letter-spacing:-.8px;margin:0 0 12px}.explain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:35px;margin-top:30px}.explain-grid article{border-top:1px solid #36505e;padding-top:20px}.explain-grid article>span{font-size:11px;color:var(--accent);font-family:monospace}.explain-grid h3{font-size:16px;font-weight:500;margin:10px 0}.explain-grid p{color:var(--muted);font-size:12px;line-height:1.8;max-width:380px}.methodology{display:grid;grid-template-columns:1fr 1.6fr;gap:60px;border-top:1px solid var(--line);padding:40px 0}.method-heading>p:last-child{font-size:12px;max-width:340px;color:var(--muted)}.method-copy>p{margin:0 0 16px;color:#9db6c6;font-size:12px;line-height:1.9}.source-links{display:flex;flex-wrap:wrap;gap:9px 20px}.source-links a{font-size:10px;color:var(--accent)}.contact{display:flex;align-items:center;justify-content:space-between;gap:30px;background:linear-gradient(115deg,#13332f,#0e2532);border:1px solid #29484c;border-radius:13px;padding:32px 36px;margin:15px 0 50px}.contact h2{font-size:23px}.contact p{color:var(--muted);font-size:12px;margin:0}.primary-button{background:var(--accent);color:#092d25;font-weight:700;font-size:12px;border-radius:7px;padding:12px 20px;white-space:nowrap}.primary-button:hover{background:#9bf8db}footer{max-width:1540px;margin:auto;padding:20px 40px 30px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:10px;color:#7c98aa}footer a:hover{color:var(--accent)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.noscript{padding:20px;text-align:center}.detail-source-note{font-size:9px!important;color:#7592a4!important;margin-top:12px!important}
@media(min-width:1700px){.atlas-body{grid-template-columns:350px minmax(0,1fr);height:740px}}@media(max-width:1050px){.topbar,main,footer{padding-left:24px;padding-right:24px}.topbar nav{gap:15px}.atlas-body{grid-template-columns:280px minmax(0,1fr);height:640px}.intro-note{display:none}.intro{padding-top:35px}.map-shortcuts button{padding:6px 8px}.map-shortcuts .expand{font-size:0}.map-shortcuts .expand::after{content:'⛶';font-size:16px}.layers{top:61px;right:12px}.legend{gap:8px;font-size:8px}.methodology{gap:30px}}@media(max-width:760px){.topbar{padding:18px 18px;gap:14px}.brand>a{font-size:19px}.brand-symbol{font-size:35px}.brand small{font-size:8px}.topbar nav{display:none}main{padding:0 14px}.intro{padding:30px 4px 25px}h1{font-size:36px;letter-spacing:-1.1px}.lead{font-size:13px}.eyebrow{font-size:9px;letter-spacing:1.5px}.stats{grid-template-columns:1fr 1fr;padding:20px 4px;gap:20px 12px}.stats>div:nth-child(3){border-left:0;padding-left:0}.stats strong{font-size:27px}.stats span{font-size:10px;max-width:140px}.atlas-body{height:auto;display:flex;flex-direction:column}.map-panel{height:480px;order:0}.sidebar{order:1;height:490px;border-right:0;border-top:1px solid var(--line)}.search-area{padding:14px 16px 8px}.filters{margin-top:8px}.atlas-top{padding:12px}.snapshot{font-size:9px;margin-left:0}.atlas-top strong{font-size:12px}.text-button{font-size:10px}.map-shortcuts{left:12px;right:12px;top:12px}.map-shortcuts button{font-size:9px;padding:6px 7px}.map-shortcuts .expand::after{font-size:13px}.leaflet-control-zoom{margin-top:60px!important}.layers{font-size:9px;right:12px;top:58px;max-width:200px}.legend{left:12px;bottom:37px;gap:6px 11px;padding:7px 9px}.map-hint{font-size:8px;left:12px;max-width:73%}.atlas-bottom{padding:11px 12px;align-items:start;font-size:9px}.understanding{margin:42px 4px 32px}.understanding h2,.methodology h2{font-size:25px}.explain-grid{grid-template-columns:1fr;gap:12px;margin-top:22px}.explain-grid p{max-width:none}.methodology{display:block;padding:30px 4px}.method-copy{margin-top:25px}.contact{padding:24px 20px;display:block;margin-bottom:30px}.contact h2{font-size:22px}.primary-button{display:inline-block;margin-top:20px}footer{padding:20px 18px;font-size:9px}.map-panel:fullscreen{height:100vh}.detail h2{font-size:23px}}
.atlas-body{grid-template-rows:minmax(0,1fr)}.sidebar,.map-panel{min-height:0}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}