/* A coastal atlas in the visual language of Xueyang's research notebook. */
.atlas-page{--sea:#dce7e1;--land:#eee8d7;--coast:#8d9c88;--sans:'Segoe UI',Arial,sans-serif}
.atlas-page button,.atlas-page input,.atlas-page select{font-family:var(--sans)}
.skip-link{position:fixed;left:20px;top:-70px;z-index:50;background:var(--ink);color:var(--paper);padding:16px}.skip-link:focus{top:10px}
.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}
[hidden]{display:none!important}.atlas-page .masthead{max-width:1440px}.current-nav{color:var(--rust);border-bottom:1px solid var(--rust);padding-bottom:4px}
.atlas-intro{max-width:1320px;margin:auto;padding:64px 40px 0;display:grid;grid-template-columns:1.1fr 1fr;column-gap:70px;position:relative}
.atlas-intro h1{font-size:clamp(64px,6.7vw,96px);line-height:.99;letter-spacing:-.055em;font-weight:normal;margin:0 0 24px}
.atlas-intro .eyebrow{color:var(--rust)}.atlas-lead{font-size:21px;line-height:1.5;margin:0 0 23px}.ink-button{display:inline-flex;align-items:center;justify-content:space-between;gap:32px;padding:14px 20px;background:var(--ink);color:var(--paper);border:1px solid var(--ink);border-radius:3px 6px 3px 5px;font:14px var(--sans,Arial,sans-serif);min-height:48px;transition:background .2s,transform .2s}.ink-button:hover{background:var(--rust);color:var(--paper);transform:translateY(-2px)}
.hand-note{font:18px/1.6 var(--hand);color:var(--rust)}.hero-note{position:relative;align-self:center;margin-top:-10px;max-width:460px}.satellite-sketch{width:100%;height:auto;color:#8b9d91}.hero-note>.hand-note{text-align:center;transform:rotate(-4deg);margin:-8px 0 35px}.scope-line{display:flex;align-items:center;justify-content:center;gap:20px}.scope-line strong{font:66px/.9 var(--body);letter-spacing:-.06em}.scope-line span{font:13px/1.8 var(--sans);padding-left:20px;border-left:1px solid var(--line);color:var(--muted)}
.intro-foot{grid-column:1/-1;display:flex;gap:40px;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding:20px 0 0;margin-top:44px;font:10px/1.6 var(--sans);letter-spacing:.12em;color:var(--muted)}.preview-stamp{color:var(--rust);border-bottom:1px dashed var(--rust)}
.atlas-section{max-width:1440px;margin:0 auto;padding:60px 40px 0;scroll-margin-top:10px}.atlas-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}.atlas-heading h2{font-size:45px;margin:0}.atlas-heading .eyebrow{margin-bottom:12px}.map-note{transform:rotate(-3deg);margin:20px 25% 0 0}
.atlas-toolbar{display:flex;min-height:62px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);gap:26px;align-items:center;margin-bottom:0;font:13px var(--sans)}.search-field{display:flex;align-items:center;gap:12px;flex:1}.search-field input{width:100%;min-width:0;border:0;background:none;outline-offset:2px;color:var(--ink);font-size:15px;min-height:50px}.search-field input::placeholder{color:#65746a}.search-field button{font-size:23px;border:0;background:none;min-width:44px;min-height:44px}.region-field{display:flex;align-items:center;gap:12px;border-left:1px solid var(--line);padding-left:26px}.region-field label{color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.09em}.region-field select{background:transparent;border:0;color:var(--ink);font-size:13px;padding:12px 20px 12px 0;max-width:190px;cursor:pointer}.directory-toggle{border:0;background:none;min-height:44px;padding:0 0 0 26px;border-left:1px solid var(--line);font-size:13px;white-space:nowrap}.directory-toggle span{margin-left:14px;font-size:23px;vertical-align:middle}.directory-toggle[aria-expanded=true]{color:var(--rust)}
.atlas-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;min-height:590px;border-bottom:1px solid var(--line)}.map-wrap{position:relative;background:var(--sea);overflow:hidden;min-height:590px;background-image:linear-gradient(#7c99860b 1px,transparent 1px),linear-gradient(90deg,#7c99860b 1px,transparent 1px);background-size:44px 44px;isolation:isolate}.map-meta{display:flex;justify-content:space-between;position:absolute;left:23px;right:23px;top:20px;z-index:2;font:10px var(--sans);letter-spacing:.1em;pointer-events:none}.map-meta i{display:inline-block;width:6px;height:6px;background:var(--rust);border-radius:50%;margin-right:7px}.map-meta>span:last-child{color:#5a7063}
#community-map{display:block;width:100%;height:100%;min-height:590px;position:absolute;inset:0;touch-action:none;cursor:grab}#community-map:active{cursor:grabbing}#community-map:focus-visible{outline:2px solid var(--rust);outline-offset:-3px}
.land-shape{fill:var(--land);stroke:var(--coast);stroke-width:.65;vector-effect:non-scaling-stroke;fill-rule:evenodd}.atlas-outline{fill:none;stroke:#637b6a;stroke-width:.8;opacity:.25;vector-effect:non-scaling-stroke}.sea-label{font:italic 20px var(--body);letter-spacing:1px;fill:#68887d;pointer-events:none;opacity:.85}.land-label{font:15px var(--sans);letter-spacing:5px;fill:#9b9d83;pointer-events:none}
.map-marker{cursor:pointer;outline:none}.marker-hit{fill:transparent}.marker-dot{fill:var(--ink);stroke:var(--paper);stroke-width:1.5;vector-effect:non-scaling-stroke;transition:fill .15s}.marker-ring{fill:none;stroke:var(--rust);stroke-width:1.5;vector-effect:non-scaling-stroke;opacity:0}.map-marker:hover .marker-dot,.map-marker:focus .marker-dot,.map-marker.is-selected .marker-dot{fill:var(--rust)}.map-marker.is-selected .marker-ring,.map-marker:focus .marker-ring{opacity:1}.marker-name{font:15px var(--sans);fill:var(--ink);paint-order:stroke;stroke:var(--sea);stroke-width:4px;stroke-linejoin:round;pointer-events:none}.map-marker.is-muted{opacity:.14;pointer-events:none}.map-marker.is-muted .marker-name{display:none}.map-marker.is-selected .marker-name{fill:var(--rust);font-weight:600}
.map-controls{position:absolute;bottom:24px;right:20px;display:flex;flex-direction:column;box-shadow:2px 3px 0 #58645220;z-index:3;border:1px solid #9eaf9e;border-radius:3px;background:var(--paper)}.map-controls button{border:0;background:none;width:42px;height:42px;font-size:23px;line-height:1}.map-controls button+button{border-top:1px solid var(--line)}.map-controls button:disabled{color:#a5afa6;cursor:default}.map-scale{position:absolute;left:24px;bottom:30px;display:flex;flex-direction:column;align-items:flex-start;font:10px var(--sans);gap:7px;pointer-events:none}.map-scale i{display:block;border:1.5px solid var(--ink);border-top:0;height:5px;width:110px}.map-hint{position:absolute;left:24px;bottom:10px;font:9px var(--sans);color:#586f61;pointer-events:none}.map-tooltip{position:absolute;left:20px;top:20px;z-index:5;pointer-events:none;background:var(--ink);color:var(--paper);padding:8px 10px;font:12px var(--sans);border-radius:2px;white-space:nowrap;max-width:95%}
.map-empty{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;background:#dce7e1e8;z-index:4;padding:25px;text-align:center}.map-empty strong{font-size:28px;font-weight:normal}.map-empty p{font-size:16px}.map-empty .text-link{margin-right:0}
.community-panel{padding:30px 27px 25px 30px;background:#eee9d933;min-width:0}.selected-top{display:flex;justify-content:space-between;gap:10px;align-items:center}.selected-top .eyebrow{font-size:9px;margin:0;letter-spacing:.1em;color:var(--rust);max-width:160px;line-height:1.6}.place-number{font:11px var(--sans);color:var(--muted);white-space:nowrap}.community-panel h3{font:normal 37px/1.12 var(--body);letter-spacing:-.04em;margin:25px 0 10px;overflow-wrap:anywhere}.coordinates{font:11px/1.7 var(--sans);color:var(--muted);margin:0}.place-rule{display:flex;align-items:center;margin-top:25px;height:12px;width:100%}.place-rule span{height:1px;width:75px;background:var(--line)}.place-rule i{width:5px;height:5px;border-radius:50%;background:var(--rust);margin-left:8px}.community-description{font:17px/1.65 var(--body);margin:17px 0 26px;min-height:83px}.timescale-tabs{display:flex;border-bottom:1px solid var(--line);gap:24px}.timescale-tabs button{border:0;border-bottom:2px solid transparent;background:none;font-size:12px;padding:12px 0;min-height:44px;white-space:nowrap}.timescale-tabs button[aria-selected=true]{border-color:var(--rust);color:var(--rust)}#timescale-panel{padding:24px 0 8px;min-height:163px}.tiny-label{font:9px/1.5 var(--sans);letter-spacing:.1em;color:var(--muted)}#timescale-title{font-size:22px;font-weight:normal;margin:10px 0}#timescale-copy{font:13px/1.7 var(--sans);color:var(--muted);margin:0}.tool-status{font:11px/1.7 var(--sans);border-top:1px solid var(--line);padding-top:18px;margin:10px 0 4px}.tool-status span:not(.status-dot){color:var(--muted);display:inline-block;margin:4px 0 0 14px;font-size:10px}.tool-status .status-dot{width:5px;height:5px;margin-right:6px;background:#758a75}.community-panel .text-link{font-size:12px;margin-top:15px;margin-right:0}.community-panel.switching #selected-content{animation:place-in .4s ease-out}
#open-community{font-size:11px;margin-top:13px;padding:12px 14px;gap:12px;width:100%;min-height:44px}#open-community+button{margin-top:13px}
.atlas-caption{display:flex;justify-content:space-between;gap:20px;font:10px/1.7 var(--sans);color:var(--muted);padding:3px 0}.atlas-caption b{padding:0 5px;font-weight:normal}.atlas-caption i{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--rust);margin-right:6px}.community-directory{border-bottom:1px solid var(--line);padding:24px 0 30px;animation:place-in .3s ease-out}.directory-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.directory-heading h3{font-size:28px;font-weight:normal;margin:0}.directory-heading span{font:12px var(--sans);color:var(--muted)}#community-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));column-gap:28px}#community-list button{display:flex;align-items:center;text-align:left;gap:12px;background:none;border:0;border-bottom:1px solid #c8c6b477;min-height:48px;padding:10px 4px;font-size:13px;line-height:1.5;transition:background .15s}#community-list button span{color:var(--rust);font-size:10px;min-width:20px}#community-list button[aria-pressed=true]{background:#b8c6b52a;color:var(--rust)}#directory-empty{color:var(--muted);font:15px var(--sans)}
.about-atlas{max-width:1200px;padding:100px 20px 70px;margin:auto;display:grid;grid-template-columns:1fr 1.35fr;gap:100px;border-bottom:1px solid var(--line);scroll-margin-top:20px}.about-atlas h2{font-size:50px}.about-atlas .hand-note{transform:rotate(-3deg);margin-top:35px}.about-atlas-copy>p:not(.large-copy){font:17px/1.85 var(--body)}.boundary-key{display:flex;gap:45px;margin:30px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:25px 0}.boundary-key>div{display:flex;align-items:center;gap:14px}.boundary-key i{display:block;width:32px;height:3px;transform:rotate(-25deg)}.wli-sample{background:#497b83}.vl-sample{background:#a88740}.boundary-key span{font:11px/1.7 var(--sans);color:var(--muted)}.boundary-key strong{display:block;font-size:14px;color:var(--ink);font-weight:500}.about-atlas-copy .method-footnote{font:12px/1.8 var(--sans)!important;color:var(--muted);margin-top:24px}.closing-note{text-align:center;padding:75px 20px 85px;max-width:1200px;margin:auto;border-bottom:1px solid var(--line)}.closing-note h2{font-size:42px;margin-top:18px}.closing-note p{font-size:19px;line-height:1.7}.closing-note .text-link{margin:14px 15px}.atlas-page footer{max-width:1360px}
.atlas-intro-copy{animation:arrival .8s ease-out both}.hero-note{animation:arrival .9s .15s ease-out both}.intro-foot{animation:arrival .7s .3s ease-out both}.atlas-satellite{transform-origin:205px 95px;animation:atlas-orbit 7s ease-in-out infinite}.orbital-track{animation:atlas-track 16s linear infinite}.markers-arriving .map-marker{animation:marker-in .6s ease-out both;animation-delay:calc(var(--arrival-order,0)*12ms)}.atlas-reveal{transition:opacity .7s,transform .7s}.atlas-reveal.is-pending{opacity:0;transform:translateY(24px)}
@keyframes atlas-orbit{50%{translate:0 -8px;rotate:2deg}}@keyframes atlas-track{to{stroke-dashoffset:-130}}@keyframes place-in{from{opacity:.3;translate:0 7px}to{opacity:1;translate:0 0}}@keyframes marker-in{from{opacity:0}to{opacity:1}}
@media(min-width:1700px){.atlas-intro{padding-top:80px}.atlas-layout,.map-wrap{min-height:650px}}
@media(max-width:1050px){.atlas-intro{padding:50px 30px 0;gap:30px}.atlas-intro h1{font-size:76px}.atlas-section{padding:50px 25px 0}.map-note{margin-right:10%}.atlas-layout{grid-template-columns:minmax(0,1fr) 280px}.community-panel{padding:26px 23px}.atlas-toolbar{gap:18px}.region-field,.directory-toggle{padding-left:18px}.about-atlas{margin:0 30px;padding:70px 0;gap:55px}.map-wrap{min-height:620px}.atlas-caption{font-size:9px}.atlas-caption>span:last-child{max-width:270px;text-align:right}.boundary-key{gap:22px}.community-panel h3{font-size:33px}#community-list{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(min-width:761px) and (max-width:900px){.atlas-layout{grid-template-columns:1fr}.map-wrap{height:600px;min-height:600px}.community-panel{padding:30px}.community-description{min-height:0}.tool-status{margin-top:0}#timescale-panel{min-height:125px}.community-panel .place-rule{margin-top:20px}}
@media(max-width:760px){.atlas-page .masthead{padding:22px 6%;gap:15px}.atlas-page .masthead nav{gap:16px;font-size:11px}.atlas-page .wordmark span{display:none}.atlas-intro{padding:42px 6% 0;grid-template-columns:1fr;gap:20px}.atlas-intro h1{font-size:67px}.atlas-intro .eyebrow{font-size:10px}.atlas-lead{font-size:20px}.hero-note{max-width:none;margin:15px 0 0;display:grid;grid-template-columns:130px 1fr;align-items:center;gap:10px}.satellite-sketch{height:110px;grid-column:1;grid-row:1}.hero-note>.hand-note{display:none}.scope-line{grid-column:2;justify-content:flex-start;gap:15px}.scope-line strong{font-size:48px}.scope-line span{padding-left:15px;font-size:11px}.intro-foot{gap:13px;margin-top:6px;padding-top:18px;flex-wrap:wrap;font-size:8px;justify-content:flex-start}.intro-foot>span:nth-child(2){margin-left:auto}.preview-stamp{margin-top:0}.atlas-section{padding:40px 5% 0}.atlas-heading{margin-bottom:24px}.atlas-heading h2{font-size:37px}.atlas-heading .eyebrow{font-size:9px}.map-note{display:none}.atlas-toolbar{display:grid;grid-template-columns:1fr auto;gap:0;min-height:108px}.search-field{grid-column:1/-1;border-bottom:1px solid var(--line);gap:10px}.search-field input{font-size:14px;min-height:52px}.region-field{border:0;padding:0;gap:8px}.region-field select{font-size:12px;max-width:180px}.region-field label{font-size:9px}.directory-toggle{font-size:12px;padding:0 0 0 12px;min-height:44px}.directory-toggle span{font-size:20px;margin-left:6px}.atlas-layout{display:flex;flex-direction:column}.map-wrap{min-height:415px}#community-map{min-height:415px}.map-meta{left:15px;right:15px;top:16px;font-size:8px}.map-controls{bottom:21px;right:13px}.map-controls button{width:42px;height:40px}.map-scale{left:15px;bottom:29px;font-size:9px}.map-hint{left:15px;font-size:8px}.community-panel{padding:26px 22px 25px}.community-panel h3{font-size:38px;margin-top:18px}.community-description{min-height:0;margin-bottom:16px}.place-rule{margin-top:17px}.timescale-tabs{gap:30px}#timescale-panel{min-height:132px;padding:19px 0 15px}.tool-status{margin-top:0}.tool-status span:not(.status-dot){margin-top:0}.atlas-caption{flex-direction:column;gap:5px;font-size:9px;padding:5px 0}.atlas-caption>span:last-child{text-align:left;max-width:none}#community-list{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:18px}#community-list button{font-size:12px;gap:7px}.directory-heading h3{font-size:25px}.about-atlas{display:block;margin:0 6%;padding:62px 0 45px}.about-atlas h2{font-size:42px}.about-atlas .hand-note{display:none}.about-atlas .large-copy{font-size:23px;margin-top:30px}.boundary-key{gap:25px}.about-atlas-copy>p:not(.large-copy){font-size:17px}.closing-note{padding:50px 6% 55px;margin:0 5%}.closing-note h2{font-size:34px}.closing-note p{font-size:18px}.closing-note .text-link{font-size:12px;margin:12px}.atlas-page footer{font-size:10px}.sea-label{font-size:22px}}
@media(prefers-reduced-motion:reduce){.atlas-reveal.is-pending{opacity:1;transform:none}.atlas-page *{scroll-behavior:auto!important;animation:none!important;transition:none!important}}