:root{--ink:#172f3d;--muted:#65757e;--line:#dfe5e9;--paper:#fff;--accent:#bd591d;--bg:#f3f6f8;color-scheme:light;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;color:var(--ink);background:var(--bg)}*{box-sizing:border-box}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #167799;outline-offset:4px}button{color:inherit}a{color:inherit}button:disabled{cursor:default}h1,h2,h3,p,figure{margin:0}.masthead{height:72px;max-width:1600px;margin:auto;padding:0 42px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-size:15px;font-weight:600}.brand-mark{width:31px;height:31px;background:var(--ink);color:#fff;display:grid;place-items:center;border-radius:7px;font-family:serif;font-size:20px}.edition{font-size:14px;color:var(--muted)}.edition b{color:var(--ink);margin-left:16px;letter-spacing:.1em}main{max-width:1600px;margin:auto;padding:0 42px}.intro{display:flex;justify-content:space-between;align-items:center;min-height:198px;gap:24px;padding:27px 0}.eyebrow{font-size:14px;color:var(--muted);letter-spacing:.1em}h1{font-size:44px;letter-spacing:-.025em;line-height:1.4;margin:7px 0 12px;font-weight:700}.intro p{font-size:16px;font-variant-numeric:tabular-nums}.intro p span{margin-left:24px;color:var(--muted)}.trip-photo{width:360px;height:140px;position:relative;overflow:hidden;border-radius:10px}.trip-photo img{width:100%;height:100%;object-fit:cover;object-position:center 35%}.trip-photo figcaption{position:absolute;bottom:0;left:0;right:0;color:#fff;background:linear-gradient(transparent,#112f4699);padding:28px 14px 12px;font-size:13px}.route-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-bottom:24px}.route-card{text-align:left;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:18px 20px;display:flex;gap:15px;align-items:flex-start;transition:background .15s,box-shadow .15s}.route-card[aria-pressed=true]{border-color:var(--route-color);box-shadow:inset 0 0 0 1px var(--route-color);background:color-mix(in srgb,var(--route-color) 4%,#fff)}.route-letter{flex-shrink:0;display:grid;place-items:center;width:34px;height:34px;border:1px solid var(--route-color);border-radius:50%;color:var(--route-color);font-weight:650}.route-card h2{font-size:17px;line-height:1.5}.route-card p{font-size:14px;color:var(--muted);margin-top:7px;line-height:1.55}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 355px;gap:22px;align-items:start}.map-panel,.itinerary-panel,.route-summary,.source-details,.preparation{background:var(--paper);border:1px solid var(--line);border-radius:12px;overflow:hidden}.panel-top{padding:21px 23px 17px;display:flex;justify-content:space-between;align-items:center;gap:12px}.panel-top h2{font-size:18px;line-height:1.5}.panel-top p{font-size:14px;color:var(--muted);margin-top:4px}.small-button{border:1px solid var(--line);border-radius:6px;background:#fff;padding:8px 13px;font-size:14px;white-space:nowrap}.small-button[aria-pressed=true]{background:var(--ink);color:white;border-color:var(--ink)}.map-stage{position:relative;background:#edf2f1;overflow:hidden;touch-action:none;height:505px;border-top:1px solid #e5eaea;border-bottom:1px solid #e5eaea}#route-map{width:100%;height:100%;display:block;cursor:grab}#route-map.dragging{cursor:grabbing}.map-controls{position:absolute;right:14px;bottom:15px;display:flex;flex-direction:column;background:white;box-shadow:0 2px 10px #24363e15;border:1px solid var(--line);border-radius:8px;overflow:hidden}.map-controls button{border:0;border-bottom:1px solid var(--line);background:white;width:36px;height:36px;font-size:21px}.map-controls button:last-child{border:0}.map-footer{padding:15px 20px;display:flex;gap:12px;justify-content:space-between;align-items:center;flex-wrap:wrap;font-size:13px;color:var(--muted)}#legend{display:flex;gap:18px}.legend-item{display:flex;align-items:center;gap:6px}.legend-line{display:inline-block;width:20px;border-top:3px solid var(--route-color)}.route-summary{padding:23px;margin-top:18px;line-height:1.8}.route-summary h3{font-size:17px;margin-bottom:6px}.route-summary p{font-size:15px;color:var(--muted)}.source-details{margin-top:18px;font-size:14px;line-height:1.8}.source-details summary{padding:17px 22px;cursor:pointer;font-weight:600}#source-notes{padding:0 23px 22px}#source-notes p{margin:8px 0}#source-notes pre{font-family:inherit;white-space:pre-wrap;font-size:14px;background:var(--bg);padding:16px;border-radius:6px}.count{font-size:14px;color:var(--muted);white-space:nowrap}.days{padding:0 12px 8px;max-height:469px;overflow:auto;scrollbar-width:thin}.day{position:relative;display:grid;grid-template-columns:49px 1fr;gap:9px;align-items:start;border:0;text-align:left;width:100%;background:white;padding:12px 10px;border-radius:7px}.day+.day{margin-top:2px}.day[aria-pressed=true]{background:color-mix(in srgb,var(--accent) 8%,white)}.day[aria-pressed=true]:before{content:'';position:absolute;left:0;top:15px;bottom:15px;width:3px;background:var(--accent);border-radius:4px}.day-date{font-size:15px;font-weight:600;font-variant-numeric:tabular-nums;line-height:1.6}.day-date small{display:block;color:var(--muted);font-size:12px;font-weight:400}.day-title{font-size:15px;line-height:1.6;font-weight:500}.day-stay{display:block;font-size:13px;margin-top:4px;color:var(--muted)}.day-detail{border-top:1px solid var(--line);padding:21px 23px;background:#fafcfd;font-size:15px;line-height:1.75}.day-detail h3{font-size:17px;margin-bottom:10px}.day-detail p+p{margin-top:9px}.detail-label{font-size:13px;color:var(--muted);display:block;margin:12px 0 3px}.detail-warning{border-left:3px solid #c68027;background:#faf1e3;padding:9px 12px;font-size:14px;margin-top:14px}.place-links{display:flex;gap:7px;flex-wrap:wrap}.place-links button,.map-link{border:1px solid var(--line);background:#fff;border-radius:5px;padding:6px 9px;font-size:14px;text-decoration:none}.map-tooltip{position:absolute;left:18px;bottom:18px;max-width:calc(100% - 90px);background:white;border:1px solid var(--line);border-radius:8px;box-shadow:0 4px 20px #20303b12;padding:13px 16px;line-height:1.7;font-size:14px}.map-tooltip strong{font-size:16px}.map-tooltip p{color:var(--muted);font-size:13px}.map-tooltip a{display:inline-block;margin-top:6px}.map-tooltip .close-tip{position:absolute;top:4px;right:6px;border:0;background:transparent;padding:4px 6px}.map-tooltip strong{padding-right:20px}.preparation{margin:30px 0 20px;padding:25px}.preparation:empty{display:none}.preparation h2{font-size:20px}.prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px;margin-top:22px}.prep-grid h3{font-size:16px;margin-bottom:9px}.prep-grid p,.prep-grid li{font-size:14px;line-height:1.85;color:var(--muted)}.prep-grid ul{padding-left:18px;margin:0}.prep-grid a{font-size:14px}.site-footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 20px;padding:20px 0 28px;color:var(--muted);font-size:12px;line-height:1.8}.site-footer p:last-child{flex-basis:100%}.pin{cursor:pointer}.pin:focus{outline:none}.pin:focus circle{stroke:#102a43;stroke-width:5}.map-label{font-family:inherit;fill:#3d525c;font-size:14px;paint-order:stroke;stroke:#edf2f1;stroke-width:4px;stroke-linejoin:round}.map-grid{stroke:#cfdad8;stroke-width:.7;stroke-dasharray:3 6}.grid-text{fill:#8b9b9c;font-size:12px}.lake{fill:#bedde2;stroke:#a0cbd4;stroke-width:.5}.region-text{fill:#96aaaa;font-size:27px;letter-spacing:.5em}.route-line{fill:none;stroke-linecap:round;stroke-linejoin:round;vector-effect:non-scaling-stroke}.active-segment{fill:none;stroke:white;stroke-width:8;stroke-linecap:round;stroke-linejoin:round;vector-effect:non-scaling-stroke}.map-dots circle{vector-effect:non-scaling-stroke}.detail-muted{color:var(--muted);font-size:13px}.reference-table{overflow:auto;margin-top:12px}.reference-table table{border-collapse:collapse;min-width:550px;font-size:14px}.reference-table th,.reference-table td{padding:10px;border-bottom:1px solid var(--line);text-align:left}.reference-table th{color:var(--muted)}@media(min-width:1450px){.workspace{grid-template-columns:minmax(0,1fr) 385px}.map-stage{height:575px}.days{max-height:539px}}@media(max-width:1100px){main{padding:0 24px}.masthead{padding:0 24px}.workspace{grid-template-columns:minmax(0,1fr) 320px;gap:16px}.route-card{padding:15px 13px;gap:10px}.route-card h2{font-size:16px}.route-card p{font-size:13px}.map-stage{height:460px}.trip-photo{width:290px}.days{max-height:424px}.panel-top{padding:18px 17px}.map-footer{padding:12px}.prep-grid{gap:18px}}@media(max-width:800px){.masthead{height:62px}.intro{min-height:173px}h1{font-size:36px}.trip-photo{width:220px;height:118px}.route-cards{gap:9px;margin-bottom:18px}.route-card{display:block;padding:13px}.route-letter{width:27px;height:27px;margin-bottom:8px;font-size:14px}.route-card h2{font-size:15px}.route-card p{font-size:13px}.workspace{grid-template-columns:1fr}.map-stage{height:440px}.itinerary-panel{display:grid;grid-template-columns:1fr 1fr}.itinerary-panel>.panel-top{grid-column:1/-1}.days{max-height:470px}.day-detail{border-top:0;border-left:1px solid var(--line)}.map-column{display:contents}.map-panel{order:0}.itinerary-panel{order:1}.route-summary{order:2;margin:0}.source-details{order:3;margin:0}.prep-grid{grid-template-columns:1fr}.source-details{font-size:14px}}@media(max-width:520px){main{padding:0 15px}.masthead{padding:0 16px}.brand{font-size:14px;gap:8px}.edition{font-size:12px}.edition b{margin-left:7px}.intro{min-height:181px;padding:24px 0;position:relative}.intro>div{position:relative;z-index:1}.eyebrow{font-size:12px}.intro p{font-size:14px}.intro p span{margin-left:12px}.trip-photo{width:108px;height:102px;position:absolute;right:0;top:26px}.trip-photo figcaption{display:none}h1{font-size:34px}.route-cards{gap:7px}.route-card{padding:12px 9px;min-height:152px}.route-card h2{font-size:14px}.route-card p{font-size:12px;margin-top:6px}.map-stage{height:375px}.map-footer{font-size:12px;gap:9px}.panel-top{padding:16px}.panel-top h2{font-size:17px}.panel-top p{font-size:13px}.itinerary-panel{display:block}.days{max-height:320px}.day-detail{border-left:0;border-top:1px solid var(--line);padding:20px}.route-summary{padding:19px}.preparation{padding:20px;margin-top:22px}.map-tooltip{left:10px;bottom:10px}.site-footer{display:block}.site-footer p+p{margin-top:6px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}@media print{.masthead,.map-controls,.small-button,.place-links,.map-tooltip{display:none}.workspace{display:block}.map-stage{height:400px}.days{max-height:none;overflow:visible}.day-detail{display:none}.itinerary-panel{display:block;break-before:page}.route-cards{break-inside:avoid}body{background:white}main{padding:0}.trip-photo{height:100px}}

/* Compact disclosure controls and narrow-screen title spacing. */
.prep-original{margin-top:24px;padding-top:18px;border-top:1px solid var(--line);font-size:14px;line-height:1.8}.prep-original summary,.prep-grid summary{cursor:pointer;font-size:14px;line-height:1.8}.source-details details{margin-top:14px;padding-top:10px;border-top:1px solid var(--line)}.source-details details summary{padding:8px 0;font-weight:500}.map-grid{vector-effect:non-scaling-stroke}.map-tooltip p{max-width:360px}.trip-photo img{object-position:center 36%}[hidden]{display:none!important}
@media(max-width:520px){.intro>div{width:calc(100% - 94px)}.trip-photo{width:82px;height:82px;top:32px}.eyebrow{letter-spacing:0;line-height:1.6}h1{font-size:clamp(26px,7.7vw,34px);white-space:nowrap}.intro p{font-size:13px;line-height:1.9}.intro p span{display:inline-block;margin-left:0;margin-right:12px}.intro p span:first-child{margin-left:8px}}

/* Dates progress through the same spectrum in the map and itinerary. */
.day-date{color:var(--day-text,var(--ink))}.day-date:before{content:"";display:block;width:30px;height:4px;border-radius:2px;background:var(--day-color);margin-bottom:3px}.day[aria-pressed=true]{background:color-mix(in srgb,var(--day-color) 10%,white)}.day[aria-pressed=true]:before{background:var(--day-color)}#legend{display:block;flex-basis:100%;width:100%}.journey-caption{display:flex;justify-content:space-between;align-items:center;gap:6px;margin-bottom:8px;font-size:12px;line-height:1.5;color:#607580}.journey-caption b{font-weight:600;color:#304956}.journey-colorbar{display:grid;grid-template-columns:repeat(13,minmax(0,1fr));border-radius:6px;isolation:isolate}.journey-step{padding:7px 0;border:0;border-left:1px solid #ffffff45;background:transparent;color:var(--day-ink);font-size:12px;font-weight:650;line-height:1.5;min-width:0;position:relative}.journey-step:first-child{border:0;border-radius:6px 0 0 6px}.journey-step:last-child{border-radius:0 6px 6px 0}.journey-step:hover{background:#ffffff33}.journey-step[aria-pressed=true]{box-shadow:inset 0 0 0 2px #fff,0 0 0 2px #233e50;z-index:1;border-radius:4px}.journey-step:focus-visible{outline:3px solid #233e50;outline-offset:3px;z-index:2}