:root{--navy:#173c55;--blue:#147c9b;--teal:#258b8f;--muted:#667e8d;--line:#d9e6ec;--ocean:#edf7fb;--land:#fcfefe}*{box-sizing:border-box}body{margin:0;color:var(--navy);background:#fff;font-family:system-ui,"Microsoft YaHei",sans-serif;font-size:14px;line-height:1.65}button,input,select{font:inherit;color:inherit}button,select{cursor:pointer}button,input,select{border:1px solid #bcd2de;border-radius:6px;background:#fff;min-height:36px;padding:6px 11px}button:hover{background:#edf7f9}button:focus-visible,input:focus-visible,select:focus-visible,[tabindex]:focus-visible,a:focus-visible{outline:3px solid #26a6b5;outline-offset:3px}a{color:#157a91;overflow-wrap:anywhere}h1,h2,h3,p{margin:0}h1{font-size:28px;line-height:1.35;font-weight:800}h2{font-size:19px;line-height:1.4}h3{font-size:16px;line-height:1.5}.masthead{display:flex;align-items:center;gap:30px;border-bottom:1px solid var(--line);padding:14px 28px;min-height:94px}.brand{font-size:24px;font-weight:800;white-space:nowrap}.brand small{display:block;font-size:11px;letter-spacing:1.5px;font-weight:500}.heading p{font-size:13px;color:var(--muted);margin-top:3px}.draft-tag{margin-left:auto;white-space:nowrap;background:#edf7f8;border:1px solid #c4e0e5;color:#286f7e;border-radius:5px;padding:4px 9px;font-size:12px}main{max-width:1600px;margin:auto;padding:12px 22px 0}.toolbar{display:flex;align-items:end;gap:14px;margin-bottom:12px}.toolbar label{display:flex;align-items:center;gap:8px;font-size:13px}.toolbar select{min-width:140px}.tools-note{margin-left:auto;font-size:12px;color:var(--muted);align-self:center}.workspace{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(350px,.85fr);border:1px solid var(--line);border-radius:8px;overflow:hidden;height:calc(100vh - 189px);min-height:430px;max-height:690px}.map-panel{min-width:0;display:flex;flex-direction:column;padding:12px 16px;background:#fff}.map-head{display:flex;gap:12px;justify-content:space-between;align-items:center;margin-bottom:9px}.map-head span{font-size:12px;color:var(--muted)}.map-wrap{position:relative;flex:1;min-height:0;background:var(--ocean);border:1px solid #d8eaf1;border-radius:6px;overflow:hidden}#map{width:100%;height:100%;display:block}.country{fill:var(--land);stroke:#a7c6d4;stroke-width:.75;vector-effect:non-scaling-stroke;cursor:pointer}.country.related{fill:#d9edf0}.country:hover,.country:focus,.country.selected{fill:#c1e0e8;stroke:#3b8f9e;stroke-width:1.5;outline:none}.route{fill:none;stroke-width:3;vector-effect:non-scaling-stroke;stroke-linecap:round;cursor:pointer}.route.operational{stroke:var(--blue)}.route.under_construction{stroke:var(--teal);stroke-dasharray:8 5}.route.planned{stroke:#677cb3;stroke-dasharray:3 5}.route.unknown{stroke:#8a969f;stroke-dasharray:8 3 2 3}.route:focus,.route:hover{stroke-width:5;outline:none}.map-node{cursor:pointer}.map-node circle{fill:#fff;stroke:#147a8c;stroke-width:1.6;vector-effect:non-scaling-stroke}.map-node:hover circle,.map-node:focus circle,.map-node.selected circle{fill:#146f86;stroke:#fff;stroke-width:2.5}.map-node:focus{outline:none}.node-label{font-size:11px;font-weight:650;fill:#183d55;paint-order:stroke;stroke:#f3faff;stroke-width:3px;stroke-linejoin:round;pointer-events:none}.corridor-label{font-size:12px;font-weight:750;fill:#1e6577;paint-order:stroke;stroke:#edf7fb;stroke-width:4;pointer-events:none}.watermark{display:none}html.gh-map-standalone .watermark{display:block;position:fixed;inset:0;z-index:50;pointer-events:none;user-select:none;background:url('watermark.svg') repeat;background-size:440px 280px;opacity:.16}.hover-info{position:absolute;left:12px;bottom:9px;max-width:calc(100% - 24px);font-size:12px;color:#4d7285;background:#f5fbfde8;padding:3px 8px;border-radius:3px;pointer-events:none}.legend{display:flex;gap:8px 15px;flex-wrap:wrap;margin-top:9px;font-size:11px;color:#4a6779}.legend span{display:inline-flex;align-items:center;gap:5px}.legend i{width:25px;border-top:3px solid var(--blue)}.legend i.under_construction{border-color:var(--teal);border-top-style:dashed}.legend i.planned{border-color:#677cb3;border-top-style:dotted}.legend i.unknown{border-color:#8a969f;border-top-style:dashed}.node-key{width:8px;height:8px;border:1.5px solid #147a8c;background:white;border-radius:50%}.map-note{color:var(--muted);font-size:11px;margin-top:6px}.side-panel{border-left:1px solid var(--line);display:flex;flex-direction:column;min-width:0}.side-tabs{display:flex;flex-shrink:0;border-bottom:1px solid var(--line);padding:0 8px}.side-tabs button{flex:1;border:0;border-bottom:3px solid transparent;border-radius:0;padding:12px 3px;min-height:47px;font-size:14px;font-weight:650;white-space:nowrap}.side-tabs button[aria-selected=true]{color:#146d83;border-bottom-color:#167e91;background:#f3fafb}.side-body{padding:15px 17px;overflow:auto;min-height:0;scrollbar-width:thin}.side-body h2{margin-bottom:9px}.side-body p{margin:7px 0;font-size:13px}.muted{color:var(--muted);font-size:12px!important}.notice{border-left:3px solid #318b9b;background:#f0f8fa;padding:8px 10px;margin:12px 0}.card{border:1px solid #d9e7ec;border-radius:6px;padding:12px;margin:10px 0;background:#f8fbfc}.card button{padding:0;border:0;min-height:0;background:none;color:#176880;text-align:left;font-weight:750;font-size:16px}.status-tag{display:inline-block;padding:1px 7px;border-radius:3px;background:#e4f1f4;color:#226576;font-size:11px;margin:4px 0}.status-tag.planned{background:#edf0f8;color:#576a9b}.status-tag.under_construction{background:#e1f2ee;color:#2c776a}.status-tag.unknown{background:#edf0f2;color:#627580}.detail-box{border:1px solid #c2dfe7;background:#eff8fa;border-radius:6px;padding:10px;margin-bottom:13px}.node-list{padding-left:19px;font-size:13px;margin:8px 0}.node-list li{margin-bottom:5px}.node-list button{border:0;padding:0;min-height:24px;color:#126e85;background:transparent;text-align:left}.source-card{border-top:1px solid var(--line);padding:12px 0}.source-card h3{font-size:14px;overflow-wrap:anywhere}.source-card a{font-size:12px}.catalog{display:flex;flex-wrap:wrap;gap:10px 24px;margin:21px 0 12px}.catalog h2{font-size:18px}.catalog p{color:var(--muted);font-size:12px}.search-label{display:flex;align-items:center;gap:8px;margin-left:auto;font-size:13px}.search-label input{width:260px;max-width:100%}.catalog-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;width:100%}.catalog-item{text-align:left;padding:9px 11px;border:1px solid #dce8ed;background:#fafcfd;line-height:1.5}.catalog-item small{display:block;font-size:11px;color:var(--muted);font-weight:400;margin-top:3px}.catalog-item.sample{background:#f0f8fa;border-color:#b5d6e0}.catalog-item[aria-pressed=true]{border-color:#178097;background:#e4f3f6}.load-status{font-size:12px;color:#617c8c;margin:7px 0}footer{text-align:center;color:#7b8f9a;font-size:11px;padding:14px} [hidden]{display:none!important}@media(max-width:800px){.masthead{padding:14px 16px;gap:14px;flex-wrap:wrap}.brand{font-size:21px}.heading{flex:1;min-width:190px}h1{font-size:24px}.draft-tag{margin-left:0;font-size:11px}.heading p{font-size:12px}main{padding:12px}.toolbar{flex-wrap:wrap;gap:8px}.toolbar label{flex:1;min-width:140px;align-items:start;flex-direction:column;gap:3px}.toolbar select{width:100%;min-width:0}.tools-note{width:100%;margin-left:0}.workspace{grid-template-columns:1fr;height:auto;max-height:none;min-height:0}.map-panel{padding:12px}.map-wrap{height:460px;flex:none}.map-head h2{font-size:17px}.side-panel{border-left:0;border-top:1px solid var(--line)}.side-body{max-height:none;overflow:visible}.catalog-list{grid-template-columns:repeat(2,minmax(0,1fr))}.search-label{margin-left:0;width:100%}.search-label input{flex:1;width:0}.map-note{font-size:11px}.map-head span{font-size:11px}}@media(max-width:400px){.map-wrap{height:300px}.brand{font-size:19px}.heading{min-width:175px}h1{font-size:22px}.catalog-list{grid-template-columns:1fr}.map-head{align-items:start;flex-direction:column;gap:2px}}
:root .workspace{grid-template-rows:minmax(0,1fr)}
:root .map-panel,:root .side-panel{min-height:0}
@media(max-width:800px){:root .workspace{grid-template-rows:auto auto}}
/* Extend the existing map family with news and industrial relationships. */
.side-tabs button{font-size:13px;padding:12px 2px;min-width:0}
.news-tools{display:flex;align-items:center;gap:8px;margin:9px 0 13px;font-size:12px}.news-tools select{min-width:0;max-width:100%;flex:1}.news-card{border-left:3px solid #24858f;background:#f5fafb;padding:11px 12px;margin:11px 0;border-radius:4px}.news-card h3{font-size:15px;line-height:1.6}.news-card p{font-size:12px}.news-meta{display:flex;flex-wrap:wrap;gap:4px 8px;align-items:center}.news-source{font-size:11px;color:#246776;background:#e4f1f3;border-radius:3px;padding:1px 6px}.recent-badge{display:inline-block;border-radius:12px;background:#167f8c;color:white;padding:0 6px;margin-left:5px;font-size:10px;font-weight:650;vertical-align:middle}.news-marker{cursor:pointer;outline:none}.news-marker rect{fill:#fff;fill-opacity:.96;stroke:#51a4ac;stroke-width:1;vector-effect:non-scaling-stroke}.news-marker circle{fill:#158b96;stroke:#fff;stroke-width:2;vector-effect:non-scaling-stroke}.news-marker .count{fill:#fff;font-size:11px;font-weight:800;text-anchor:middle;pointer-events:none}.news-marker .name{fill:#205971;font-size:10px;font-weight:700;pointer-events:none}.news-marker:hover rect,.news-marker:focus rect{stroke:#173c55;stroke-width:2}.news-marker .pulse{animation:news-pulse 2s ease-in-out 3;transform-box:fill-box;transform-origin:center}.news-key{display:block;width:9px;height:9px;border-radius:50%;background:#158b96}.route.mode-industrial_link{stroke:#86689f;stroke-width:2;stroke-dasharray:1 6}.route.mode-industrial_link:hover,.route.mode-industrial_link:focus{stroke-width:3}.legend i.industrial_link{border-color:#86689f;border-top-style:dotted}.map-note{line-height:1.5}.news-snapshots{font-size:11px!important}.news-marker-note{margin-top:5px!important}.source-attribution{border-top:1px solid var(--line);margin-top:15px;padding-top:12px}@keyframes news-pulse{0%,100%{opacity:1}50%{opacity:.55}}@media(prefers-reduced-motion:reduce){.news-marker .pulse{animation:none}}@media(max-width:800px){.side-tabs{padding:0 4px}.side-tabs button{font-size:12px}.news-tools{flex-wrap:wrap}.news-tools select{min-width:180px}.legend{gap:6px 11px}}@media(max-width:400px){.side-tabs button{font-size:11px;padding:11px 1px}.news-marker .name{font-size:10px}}

.route.mode-corridor_extent{stroke:#929fa8;stroke-width:1.5;stroke-dasharray:1 5}.route.mode-corridor_extent:hover,.route.mode-corridor_extent:focus{stroke-width:2.5}.legend i.corridor_extent{border-color:#929fa8;border-top-width:2px;border-top-style:dotted}

.map-zoom{position:absolute;top:9px;left:9px;z-index:2;display:flex;gap:4px}.map-zoom button{font-size:13px;background:#fffffff0;min-height:32px;padding:4px 9px;box-shadow:0 1px 3px #17476312}.map-zoom button:disabled{cursor:default;opacity:.5}.map-zoom button:first-child,.map-zoom button:nth-child(2){font-size:18px;padding:1px 8px}.map-zoom button:hover{background:#fff}
.corridor-profile{border-top:1px solid var(--line);margin-top:14px;padding-top:12px}.corridor-profile>h2{font-size:17px;margin-bottom:7px}.profile-introduction{color:#294c5d;font-size:13px!important}.profile-title{font-size:14px;margin:8px 0 3px}.profile-updated{margin:2px 0 7px!important}.profile-toggle{min-height:40px;margin:3px 0 8px;padding:6px 10px;font-size:12px}.profile-section{border-top:1px solid #e5edf0}.profile-section summary{min-height:40px;display:flex;align-items:center;gap:7px;cursor:pointer;font-size:13px;font-weight:700;list-style-position:inside}.profile-section p{font-size:13px!important;line-height:1.7;margin:6px 0 10px;padding-left:4px}.profile-kind{font-size:10px;font-weight:500;color:var(--muted);background:#f0f4f5;border-radius:3px;padding:1px 5px}

.verification-warning{color:#9b4d00;background:#fff3df;padding:2px 5px;border-radius:3px}.news-tools{flex-wrap:wrap}.news-tools button{padding:5px 9px}

/* Pipeline connection style keeps the segment status pattern. */
.route.mode-pipeline{stroke:#c1843e}.legend i.pipeline{border-color:#c1843e}

.map-head .map-metric-note{font-size:14px;line-height:1.6;color:#16344c;background:#edf5f8;border-left:4px solid #126e7e;padding:8px 12px;border-radius:4px;margin:8px 0 0;font-weight:500}.map-head .map-metric-note strong{font-weight:800}