:root{color-scheme:light;--mud-canvas: #eee9df;--mud-paper: #faf7f0;--mud-paper-raised: #fffdf8;--mud-paper-deep: #e5dfd2;--mud-ink: #263432;--mud-ink-soft: #485653;--mud-muted: #5c6863;--mud-moss: #477c75;--mud-moss-deep: #2d5f59;--mud-moss-soft: #e6efeb;--mud-sun: #d29b46;--mud-sun-soft: #f3e6bd;--mud-clay: #a65e4f;--mud-clay-deep: #81483d;--mud-clay-soft: #f5e7e0;--mud-egg: #7d67a6;--mud-focus: #74401f;--mud-line: rgba(38, 52, 50, .13);--mud-line-strong: rgba(38, 52, 50, .22);--mud-on-dark: #fffdf8;--mud-on-dark-muted: rgba(255, 253, 248, .76);--mud-font-body: "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;--mud-font-display: Georgia, "Songti SC", "Noto Serif CJK SC", serif;--mud-space-1: 4px;--mud-space-2: 8px;--mud-space-3: 12px;--mud-space-4: 16px;--mud-space-6: 24px;--mud-space-8: 32px;--mud-space-12: 48px;--mud-space-16: 64px;--mud-radius-control: 12px;--mud-radius-inner: 16px;--mud-radius-card: 24px;--mud-radius-panel: 28px;--mud-radius-pill: 999px;--mud-shadow-low: 0 0 0 1px rgba(38, 52, 50, .06), 0 1px 2px -1px rgba(38, 52, 50, .08), 0 5px 18px rgba(63, 54, 39, .05);--mud-shadow-low-hover: 0 0 0 1px rgba(38, 52, 50, .09), 0 2px 4px -1px rgba(38, 52, 50, .1), 0 10px 24px rgba(63, 54, 39, .08);--mud-shadow-mid: 0 0 0 1px rgba(38, 52, 50, .07), 0 10px 30px rgba(63, 54, 39, .11), 0 2px 6px rgba(38, 52, 50, .05);--mud-shadow-high: 0 0 0 1px rgba(0, 0, 0, .1), 0 26px 80px rgba(24, 29, 27, .28), 0 8px 24px rgba(24, 29, 27, .16);--mud-ease-standard: cubic-bezier(.2, 0, 0, 1);--mud-duration-instant: .14s;--mud-duration-state: .24s;--mud-duration-enter: .36s;--mud-z-sticky: 20;--mud-z-overlay: 100;--mud-z-dialog: 120}:root{color:var(--mud-ink);background:var(--mud-canvas);font-family:var(--mud-font-body);font-synthesis:none;text-rendering:optimizeLegibility;--ink: var(--mud-ink);--muted: var(--mud-muted);--paper: var(--mud-paper);--paper-deep: var(--mud-paper-deep);--teal: var(--mud-clay);--teal-deep: var(--mud-clay-deep);--yellow: var(--mud-sun);--red: var(--mud-clay);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0;min-width:320px;background:#eee9df}button,input{font:inherit}button{cursor:pointer}button:active:not(:disabled){scale:.96}button:disabled{cursor:not-allowed;opacity:.5}.app-frame{min-height:100vh;max-width:1180px;margin:0 auto;padding:28px clamp(18px,4vw,56px) 32px}.eyebrow{color:var(--teal);font-size:11px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}h1,h2,p{margin-top:0}h1,h2{text-wrap:balance}p{text-wrap:pretty}h1{margin-bottom:14px;font-size:clamp(32px,7vw,72px);line-height:.98;letter-spacing:-.055em}h2{margin:6px 0 0;font-size:clamp(22px,3vw,36px);letter-spacing:-.04em}p{line-height:1.7}.loading-panel,.empty-panel,.welcome-panel{max-width:720px;margin:12vh auto 0;padding:clamp(28px,7vw,72px);background:var(--paper);border-radius:var(--mud-radius-card);box-shadow:var(--mud-shadow-mid)}.loading-panel p,.empty-panel p{color:var(--muted)}.empty-panel{text-align:center}.empty-mark{margin:44px 0 18px;color:var(--yellow);font-size:58px;line-height:1}.boundary-note{color:var(--muted);font-size:13px}.primary-button{min-height:46px;padding:0 18px;border:0;background:var(--teal-deep);color:var(--mud-on-dark);font-weight:750;border-radius:var(--mud-radius-control);transition-property:transform,background-color;transition-duration:var(--mud-duration-instant);transition-timing-function:var(--mud-ease-standard)}.primary-button:hover:not(:disabled){background:var(--teal);transform:translateY(-1px)}.wide-button{width:100%;margin-top:18px}.welcome-panel{margin-top:7vh}.welcome-panel .lead{max-width:620px;color:#485653;font-size:clamp(17px,2.2vw,21px)}.welcome-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin:34px 0;background:var(--paper-deep);border:1px solid var(--paper-deep)}.welcome-facts div{display:grid;gap:5px;padding:18px;background:var(--paper)}.welcome-facts strong{font-size:32px;color:var(--teal-deep)}.welcome-facts span{color:var(--muted);font-size:13px}.consent-row{display:flex;flex-wrap:wrap;gap:2px;align-items:center;color:var(--muted);font-size:14px;line-height:1.6}.consent-check{display:inline-flex;align-items:center;min-height:40px;gap:10px}.consent-check input{flex:none;width:20px;height:20px;margin:0;accent-color:var(--teal)}.consent-notice-button{min-height:40px;margin:-8px 0;font-weight:750}.notice{margin:16px 0 0;padding:11px 13px;color:var(--teal-deep);background:#f6e4c5;font-size:14px}.notice-error{color:#8d4d41;background:#f5e7e0}.topbar{padding-bottom:24px;border-bottom:1px solid rgba(48,45,45,.16)}.topbar strong{display:block;font-family:Georgia,Songti SC,serif;font-size:clamp(28px,3vw,36px);line-height:1.1;letter-spacing:-.04em}.route-intro{padding:clamp(32px,7vw,74px) 0 34px}.route-intro h1{max-width:720px;text-wrap:balance}.scroll-hint,.muted-copy,.action-note{color:var(--muted);font-size:13px}.map-section{padding:30px 0}.completion-app .task-section{padding:30px 0;border-top:1px solid rgba(48,45,45,.16)}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:20px}.map-scroll{overflow-x:auto;overscroll-behavior-x:contain;padding:5px 0 14px;scrollbar-color:var(--teal) transparent;touch-action:pan-x pan-y;-webkit-overflow-scrolling:touch;cursor:grab}.map-scroll.is-dragging{cursor:grabbing}.map-canvas{position:relative;min-width:960px;aspect-ratio:1921 / 819;overflow-y:auto;isolation:isolate;background-color:#f8f8f6;background-repeat:no-repeat;background-position:center;background-size:100% 100%;box-shadow:0 18px 48px #28251e1f,inset 0 0 0 1px #0000001a}.region-layer{position:absolute;z-index:1;inset:0;width:100%;height:100%;pointer-events:none}.region-shape{color:var(--muted)}.region-wash{fill:currentColor;fill-opacity:.02;stroke:none}.region-rail{fill:none;stroke:currentColor;stroke-width:4px;stroke-linecap:round;stroke-linejoin:round;vector-effect:non-scaling-stroke;opacity:0;mix-blend-mode:multiply}.region-label{fill:currentColor;stroke:#faf7f0e0;stroke-width:3px;paint-order:stroke;font-size:11px;font-weight:750;text-anchor:middle;dominant-baseline:hanging}.region-locked{color:#302d2d61}.region-current{color:#d29b46}.region-current .region-wash{fill-opacity:.07}.region-current .region-rail{stroke-width:6px;opacity:.64;filter:drop-shadow(0 0 5px rgba(210,155,70,.92)) drop-shadow(0 0 12px rgba(210,155,70,.58))}.region-completed{color:#b76636}.region-completed .region-wash{fill-opacity:.04}.region-completed .region-rail{opacity:.38}.point-marker{position:absolute;z-index:4;display:grid;place-items:center;width:48px;height:48px;padding:0;transform:translate(-50%,-50%);border:0;background:transparent;color:var(--muted);font-weight:850;font-variant-numeric:tabular-nums;touch-action:pan-y;transition:transform .16s ease-out}.point-marker:active:not(:disabled){transform:translate(-50%,-50%) scale(.96)}.point-marker:focus-visible{z-index:6;outline:2px solid #302d2d;outline-offset:3px}.point-marker>*{position:absolute;pointer-events:none}.point-marker.point-current{pointer-events:none}.point-marker.point-current .point-tag{pointer-events:auto;cursor:pointer}.point-marker.point-current:focus-visible{outline:none}.point-marker.point-current:focus-visible .point-tag{outline:2px solid #302d2d;outline-offset:3px}.point-anchor{z-index:2;width:30px;height:30px;border-radius:50%;background:#302d2d;box-shadow:0 0 0 2px #faf7f0d9}.point-leader{z-index:1;width:1px;height:28px;background:#1c231bd1;transform-origin:center bottom}.point-leader-above{bottom:22px}.point-leader-below{top:22px;transform:rotate(180deg)}.point-tag{z-index:3;display:inline-flex;align-items:flex-start;gap:8px;width:max-content;max-width:220px;min-height:44px;padding:8px 14px 8px 11px;color:#24251d;background:#f1cf75;clip-path:polygon(4% 4%,96% 0,100% 84%,91% 100%,3% 94%,0 15%);box-shadow:none;line-height:1.25;white-space:normal;opacity:0;animation:point-tag-in .22s ease-out forwards}.point-tag-above{bottom:52px;left:24px}.point-tag-below{top:52px;left:24px}.point-tag.point-tag-left{right:24px;left:auto}.point-marker.point-label-door .point-leader-above{top:50%;right:0;bottom:auto;width:52px;height:1px;transform:translateY(-50%)}.point-marker.point-label-door .point-tag-above{right:52px;bottom:-22px;left:auto}.point-tag.inset-right{left:-18px}.point-tag.inset-left{right:-4px;left:auto}.point-tag b{flex:none;padding-top:1px;font-size:12px;line-height:1.25}.point-tag em{max-width:170px;font-size:14px;font-style:normal;font-weight:750;letter-spacing:-.015em;line-height:1.25;overflow-wrap:anywhere;text-wrap:balance}.point-stamp{z-index:2;display:grid;place-items:center;width:30px;height:28px;color:#fff;border-radius:43% 57% 49% 51%/54% 44% 56% 46%;background:#b76636;box-shadow:none;font-size:17px;line-height:1;transform:rotate(-5deg)}.point-completed .point-anchor,.point-current .point-anchor{display:none}.point-etching{z-index:2;display:grid;place-items:center;width:30px;height:30px;color:#302d2d9e;border:1px solid currentColor;border-radius:38% 62% 40% 60%/58% 40% 60% 42%;background:#f5f3e9;box-shadow:none;font-size:10px;letter-spacing:.03em}.point-marker.point-locked{opacity:.45}.point-locked .point-anchor{display:none}@keyframes point-tag-in{0%{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}.map-legend{display:flex;gap:18px;margin-top:10px;color:var(--muted);font-size:12px}.map-legend span{display:inline-flex;align-items:center;gap:6px}.legend-mark{position:relative;display:inline-block;width:15px;height:13px}.legend-tag{background:#e0af54;clip-path:polygon(5% 6%,96% 0,100% 90%,5% 100%,0 15%)}.legend-tag:after{position:absolute;bottom:-6px;left:3px;width:1px;height:6px;content:"";background:#302d2d}.legend-stamp{border-radius:42% 58% 51% 49%/57% 44% 56% 43%;background:#b76636}.legend-etching{border:1px solid rgba(48,45,45,.52);border-radius:36% 64% 42% 58%/55% 40% 60% 45%}@media(prefers-reduced-motion:reduce){.point-tag{animation:none;opacity:1}}:root{--treasure-black: #302d2d;--treasure-cream: #f5f3e9;--treasure-canvas: #deded5;--treasure-sun: #f1c84b;--treasure-apricot: #efb06d;--treasure-yellow: var(--treasure-sun);--treasure-line: rgba(48, 45, 45, .82);--ink: var(--treasure-black);--muted: #686662;--paper: var(--treasure-cream);--paper-deep: #e6e5d9;--teal: #b76636;--teal-deep: var(--treasure-black);--yellow: var(--treasure-yellow);--red: #c47b68}body{background:var(--treasure-canvas);color:var(--treasure-black)}.app-frame{max-width:1080px;padding-top:clamp(24px,5vw,64px)}.topbar{padding:0 0 18px;border-bottom:3px solid var(--treasure-black)}.topbar strong{font-family:Arial Narrow,Avenir Next Condensed,Songti SC,sans-serif;font-size:clamp(31px,5vw,58px);font-weight:900;letter-spacing:-.08em}.eyebrow{color:var(--treasure-black);font-size:11px;font-weight:900;letter-spacing:.18em}h1,h2{font-family:Arial Narrow,Avenir Next Condensed,Songti SC,sans-serif;font-weight:900;letter-spacing:-.075em}h1{font-size:clamp(42px,8vw,86px);line-height:.9}h2{font-size:clamp(28px,4vw,42px);line-height:.98}.route-intro{padding:clamp(42px,9vw,106px) 0 42px}.route-intro h1{max-width:780px;font-size:clamp(36px,7vw,72px);line-height:1.05;letter-spacing:-.045em}.section-heading{align-items:end;margin-bottom:15px;padding-bottom:14px;border-bottom:2px solid var(--treasure-line)}.section-heading h2{margin-top:8px}.scroll-hint,.muted-copy,.action-note{color:var(--treasure-black);font-size:12px;font-weight:800;letter-spacing:.04em}.map-scroll{padding:13px 0 22px;scrollbar-color:var(--treasure-black) transparent}.map-canvas{min-width:960px;border:10px solid var(--treasure-black);border-radius:28px;background-color:var(--treasure-cream);box-shadow:none}.map-canvas:after{position:absolute;inset:0;z-index:2;border:1px solid rgba(255,255,255,.6);border-radius:18px;content:"";pointer-events:none}.region-layer{z-index:3}.point-marker{z-index:5}.point-anchor{width:27px;height:27px;border:4px solid var(--treasure-black);background:var(--treasure-sun);box-shadow:none}.point-tag{min-height:48px;padding:9px 15px 9px 12px;border:2px solid var(--treasure-black);border-radius:6px;color:var(--treasure-black);background:var(--treasure-sun);clip-path:none;box-shadow:none}.point-tag b{font-size:12px;font-weight:900}.point-tag em{font-size:14px;font-weight:900}.point-stamp{width:35px;height:35px;border:3px solid var(--treasure-black);border-radius:50%;color:var(--treasure-black);background:var(--treasure-apricot);box-shadow:none;font-weight:900}.point-etching{width:33px;height:33px;border:3px solid rgba(48,45,45,.54);border-radius:50%;background:var(--treasure-cream);box-shadow:none;font-weight:900}.point-leader{width:3px;background:var(--treasure-black)}.map-legend{gap:16px;margin-top:3px;color:var(--treasure-black);font-weight:800}.legend-tag{border:2px solid var(--treasure-black);background:var(--treasure-sun);clip-path:none}.legend-stamp{border:2px solid var(--treasure-black);background:var(--treasure-apricot)}.legend-etching{border:2px solid rgba(48,45,45,.54);background:var(--treasure-cream)}.visitor-dialog::backdrop,.card-reveal-layer{background:#3e2214cc;-webkit-backdrop-filter:none;backdrop-filter:none}.developing-overlay-layer{position:fixed;inset:0;z-index:90;display:flex;align-items:center;justify-content:center;background:#1e100aeb;overflow:hidden}.developing-overlay-inner{display:flex;flex-direction:column;align-items:center;gap:24px;max-width:70vh;width:80vw}.developing-photo-preview{position:relative;width:100%;aspect-ratio:1 / 1;max-height:50vh;border:4px solid var(--treasure-sun);overflow:hidden;background:#1a0e08}.developing-photo-preview img{display:block;width:100%;height:100%;object-fit:cover;animation:overlay-develop 3s ease-in-out infinite both}.developing-visualizer{position:absolute;inset:0;pointer-events:none;background:#ffdcb408;animation:overlay-emulsion 6s linear infinite}.developing-caption{color:var(--treasure-sun, #e8b84b);font-size:clamp(18px,4vw,28px);font-weight:800;letter-spacing:.1em;text-align:center;animation:developing-pulse 2s ease-in-out infinite}@keyframes overlay-develop{0%{opacity:.2;filter:brightness(1.9) contrast(.35) saturate(.15) blur(3px)}50%{opacity:.6;filter:brightness(1.3) contrast(.6) saturate(.4) blur(1px)}to{opacity:.2;filter:brightness(1.9) contrast(.35) saturate(.15) blur(3px)}}@keyframes overlay-emulsion{0%{opacity:.6;transform:translateY(0)}50%{opacity:.3;transform:translateY(-10%)}to{opacity:.6;transform:translateY(0)}}@keyframes developing-pulse{0%,to{opacity:.6}50%{opacity:1}}@media(prefers-reduced-motion:reduce){.developing-photo-preview img{animation:none;opacity:.5;filter:brightness(1.3) contrast(.7) saturate(.5)}.developing-visualizer{animation:none;opacity:.3}.developing-caption{animation:none}}.visitor-dialog-card,.card-reveal-panel{border:8px solid var(--treasure-black);border-radius:30px;background:var(--treasure-cream);box-shadow:none}.visitor-dialog-heading{padding:22px 24px 18px}.visitor-dialog-heading h2{font-size:clamp(31px,6vw,52px)}.dialog-close{border:3px solid var(--treasure-black);border-radius:0;color:var(--treasure-black);background:var(--treasure-sun);font-weight:900}.task-card,.welcome-panel,.loading-panel,.empty-panel{border:3px solid var(--treasure-black);border-radius:0;background:var(--treasure-cream);box-shadow:none}.task-prompt,.welcome-panel .lead{font-weight:800}.primary-button,.secondary-button{min-height:48px;border:2px solid var(--treasure-black);border-radius:10px;color:var(--treasure-cream);background:var(--treasure-black);box-shadow:none;font-weight:900;transition-property:color,background-color,scale}.primary-button:hover:not(:disabled),.secondary-button:hover:not(:disabled){color:var(--treasure-black);background:var(--treasure-sun);transform:none}.secondary-button{color:var(--treasure-black);background:var(--treasure-apricot)}.notice,.completion-copy{border:2px solid var(--treasure-black);color:var(--treasure-black);background:var(--treasure-sun);font-weight:750}.notice-error{color:var(--treasure-black);background:#f2c5ae}.point-reference,.result-answer,.result-cards article{border:2px solid var(--treasure-black);border-radius:14px;background:var(--treasure-apricot);box-shadow:none}.point-reference.is-pending{background:var(--treasure-sun)}.quiz-row input{min-height:48px;border:3px solid var(--treasure-black);border-radius:0;background:#fff}.completion-seal{border:3px solid var(--treasure-black);border-radius:0;color:var(--treasure-black);background:var(--treasure-sun);box-shadow:none}.completion-header{padding-bottom:18px;border-bottom:3px solid var(--treasure-black)}.collection-spread{border:8px solid var(--treasure-black);border-radius:28px;background:var(--treasure-cream);box-shadow:none}.collection-book-spread>.collection-page:first-child,.collection-book-spread>.collection-page:nth-child(2){background:var(--treasure-cream)}.collection-template,.result-cards article{color:var(--treasure-black);background:var(--treasure-black)}.collection-image-frame{border:3px solid var(--treasure-black);border-radius:0;background:var(--treasure-apricot)}.card-reveal-panel{border-radius:0}@media(max-width:620px){.app-frame{padding-right:18px;padding-left:18px}.route-intro{padding-top:56px}.map-canvas{border-width:8px;border-radius:22px}.visitor-dialog-card{border-width:7px;border-radius:24px 24px 0 0;box-shadow:0 -5px #302d2d29}.collection-spread{border-width:6px;border-radius:20px}}.status-label{padding:7px 10px;color:var(--teal-deep);background:#f5dfbc;font-size:12px;white-space:nowrap}.route-notice{max-width:680px}.visitor-dialog{position:fixed;inset:0;width:100vw;max-width:none;height:100dvh;max-height:none;margin:0;padding:clamp(18px,4vw,40px);overflow:hidden;border:0;background:transparent;color:var(--ink)}.visitor-dialog[open]{display:grid;place-items:center}.visitor-dialog::backdrop{background:#3e2214b8;-webkit-backdrop-filter:none;backdrop-filter:none}.visitor-dialog-card{display:flex;flex-direction:column;width:min(100%,680px);max-height:min(86vh,calc(100dvh - 36px));overflow:hidden;overscroll-behavior:contain;border:1px solid rgba(48,45,45,.14);border-radius:20px;background:var(--paper);box-shadow:none;scrollbar-color:var(--teal) transparent}.visitor-dialog-heading{flex:none;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 24px 18px}.visitor-dialog-heading h2{margin:0;font-size:clamp(28px,4vw,38px)}.point-task-dialog-card .visitor-dialog-heading{align-items:flex-start;gap:16px;padding-bottom:18px}.point-task-dialog-card .visitor-dialog-heading h2{flex:1;min-width:0;font-size:clamp(25px,4.5vw,34px);letter-spacing:-.035em;line-height:1.16;text-wrap:balance}.point-task-dialog-card .dialog-close{margin-top:2px}.visitor-dialog-heading h2:focus{outline:none}.dialog-close{flex:none;display:grid;place-items:center;width:40px;height:40px;padding:0;border:0;border-radius:50%;color:var(--ink);background:var(--paper-deep);font-size:29px;font-weight:300;line-height:1}.dialog-close:hover:not(:disabled){background:#ddd4c2}.point-task-dialog-card .task-card{min-height:0;max-width:none;overflow-y:auto;padding:22px 24px 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