:root{--ink:#20372b;--muted:#738078;--paper:#f4f4eb;--card:#fffef8;--green:#2d6042;--deep:#1e4935;--soft:#dfeadd;--yellow:#f4c564;--orange:#ec8b5e;--line:rgba(32,55,43,.14);font-family:"Manrope","Noto Sans SC",sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}*{box-sizing:border-box}html,body{margin:0;min-width:320px;min-height:100%;background:var(--paper)}body{overflow:hidden}button,input{font:inherit}button{cursor:pointer}a{color:inherit}.frog-field{position:fixed;inset:0;z-index:0;display:grid;grid-template-columns:repeat(5,1fr);align-content:space-around;justify-items:center;overflow:hidden;pointer-events:none;opacity:.055;font-size:clamp(3rem,8vw,7rem)}.frog-field span:nth-child(3n){transform:rotate(12deg) translateY(18px)}.frog-field span:nth-child(4n){transform:rotate(-8deg) translateY(-12px)}.app-shell{position:relative;z-index:1;width:min(1160px,calc(100% - 48px));height:100vh;margin:0 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.letter-image-link{display:none;width:100%;height:100%;cursor:zoom-in}.letter-image-link:not(.is-hidden){display:block}.letter-image-link:hover .letter-photo{filter:brightness(1.06)}.letter-image-link:not(.is-hidden)+.photo-placeholder{display:none}.modal-photo-link{display:block;border-radius:14px;overflow:hidden;cursor:zoom-in}.modal-photo-link:hover .modal-photo{filter:brightness(1.06)}.image-hint{margin:6px 0 0;color:var(--muted);font:500 .58rem "DM Mono",monospace}.modal-links{display:flex;flex-wrap:wrap;gap:10px}.modal-links .text-link{margin-top:12px}
.weather-widget{display:flex;align-items:center;gap:12px;padding:11px;border:1px solid var(--line);border-radius:16px;background:#f4f4eb;overflow:hidden}.weather-sky{position:relative;display:grid;flex:0 0 53px;place-items:center;width:53px;height:53px;overflow:hidden;border-radius:14px;background:linear-gradient(160deg,#f9d782,#e9a16d);color:#fff6cf}.weather-sky:before,.weather-sky:after{content:"";position:absolute;pointer-events:none}.weather-sky:before{width:36px;height:13px;right:-5px;bottom:10px;border-radius:50%;background:rgba(255,255,255,.62);box-shadow:-17px 4px 0 1px rgba(255,255,255,.45)}.weather-sky:after{width:2px;height:18px;left:14px;top:31px;background:rgba(255,255,255,.7);box-shadow:8px 5px 0 rgba(255,255,255,.55),16px -3px 0 rgba(255,255,255,.5);opacity:0}.weather-sky span{position:relative;z-index:1;font-size:1.55rem;animation:weatherFloat 2.7s ease-in-out infinite}.weather-widget>div:last-child{min-width:0}.weather-widget strong,.weather-widget small{display:block}.weather-widget strong{margin:4px 0 3px;color:var(--green-deep);font-size:.73rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.weather-widget small{color:var(--muted);font-size:.59rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.weather-widget[data-condition="sunny"] .weather-sky{background:linear-gradient(160deg,#f9d782,#e98662)}.weather-widget[data-condition="night"] .weather-sky{background:linear-gradient(160deg,#314b67,#1e4935)}.weather-widget[data-condition="night"] .weather-sky:before,.weather-widget[data-condition="sunny"] .weather-sky:before{display:none}.weather-widget[data-condition="cloudy"] .weather-sky{background:linear-gradient(160deg,#a9c8c2,#6b8b82)}.weather-widget[data-condition="rain"] .weather-sky,.weather-widget[data-condition="storm"] .weather-sky{background:linear-gradient(160deg,#708d9a,#425a69)}.weather-widget[data-condition="rain"] .weather-sky:after,.weather-widget[data-condition="storm"] .weather-sky:after{opacity:1;animation:rainDrop .8s linear infinite}.weather-widget[data-condition="snow"] .weather-sky{background:linear-gradient(160deg,#c2d6dc,#708c9a)}.weather-widget[data-condition="fog"] .weather-sky{background:linear-gradient(160deg,#c3c9bd,#89988c)}.weather-widget[data-condition="loading"] .weather-sky{background:linear-gradient(120deg,#dfeadd,#b7cbb7)}.map-layout{display:grid;grid-template-columns:minmax(260px,.72fr) minmax(0,1.28fr);min-height:500px;overflow:hidden}.map-copy{display:flex;flex-direction:column;justify-content:center;padding:42px}.map-copy h3{margin:14px 0 10px;font-family:"Noto Serif SC",serif;font-size:clamp(1.8rem,4vw,3rem);letter-spacing:-.06em}.map-copy p{max-width:310px;margin:0;color:var(--muted);font-size:.78rem;line-height:1.8}.map-time-pair{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:28px 0;padding:17px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.map-time-pair strong{display:block;margin-top:6px;color:var(--green-deep);font:500 1rem "DM Mono",monospace}.map-link{align-self:flex-start}.map-frame-wrap{min-height:500px;background:#dfeadd}.map-frame-wrap iframe{display:block;width:100%;height:100%;min-height:500px;border:0}.letter-music-player{display:block;width:100%;height:32px;margin-top:10px;accent-color:var(--green)}.letter-music-player.is-hidden{display:none}@keyframes weatherFloat{50%{transform:translateY(-4px) rotate(5deg)}}@keyframes rainDrop{to{transform:translateY(13px);opacity:.15}}@media(max-width:820px){.map-layout{grid-template-columns:1fr}.map-copy{padding:28px}.map-frame-wrap,.map-frame-wrap iframe{min-height:340px;height:340px}}@media(max-width:540px){.weather-widget{margin-top:4px}.map-time-pair{grid-template-columns:1fr}.map-frame-wrap,.map-frame-wrap iframe{min-height:290px;height:290px}}
body{transition:background-color 1.2s ease}body:after{content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:0;transition:opacity 1.2s ease,background 1.2s ease}.app-shell{transition:filter 1.2s ease}body[data-weather="sunny"]{background:#f5f1dc}body[data-weather="night"]{background:#dfe6e4}body[data-weather="cloudy"]{background:#e8eee8}body[data-weather="fog"]{background:#e9ebe3}body[data-weather="rain"]{background:#e1e9ea}body[data-weather="snow"]{background:#e8eff0}body[data-weather="storm"]{background:#d5dfe3}body[data-weather="rain"]:after,body[data-weather="snow"]:after,body[data-weather="storm"]:after{opacity:.22;background:repeating-linear-gradient(112deg,transparent 0 18px,rgba(77,108,118,.18) 19px 20px,transparent 21px 42px);animation:weatherPageDrift 1.5s linear infinite}body[data-weather="snow"]:after{background-image:radial-gradient(circle,rgba(255,255,255,.8) 0 2px,transparent 2.5px);background-size:42px 42px;animation:weatherSnow 7s linear infinite}body[data-weather="fog"]:after{opacity:.22;background:linear-gradient(115deg,transparent 10%,rgba(255,255,255,.8) 35%,transparent 58%);animation:fogSweep 10s ease-in-out infinite}body[data-weather="storm"]:after{opacity:.3;background:linear-gradient(110deg,transparent,rgba(57,77,91,.28),transparent)}@keyframes weatherPageDrift{to{background-position:42px 70px}}@keyframes weatherSnow{to{background-position:0 84px}}@keyframes fogSweep{50%{transform:translateX(12%)}}
 .letter-reading-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 0 18px;padding:9px 12px;border:1px solid rgba(45,96,66,.14);border-radius:11px;background:#eef3e9;color:var(--muted);font:500 .62rem "DM Mono",monospace}.letter-reading-bar b{color:var(--green-deep);font-size:.78rem}.letter-gallery{position:absolute;left:12px;right:12px;bottom:12px;display:flex;gap:7px;overflow-x:auto;padding:7px;border-radius:13px;background:rgba(20,48,34,.58);backdrop-filter:blur(8px)}.gallery-thumb{flex:0 0 52px;width:52px;height:44px;padding:0;overflow:hidden;border:2px solid transparent;border-radius:8px;background:rgba(255,254,248,.25);cursor:pointer}.gallery-thumb.is-active{border-color:var(--yellow)}.gallery-thumb img{display:block;width:100%;height:100%;object-fit:cover}.letter-body strong,.modal-body strong{color:var(--green-deep);font-weight:800}
 .letter-places{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:18px}.place-chip{display:flex;flex-direction:column;gap:3px;padding:11px 12px;border:1px solid var(--line);border-radius:13px;background:#f4f5ec;text-decoration:none}.place-chip strong{font-family:"Noto Serif SC",serif;font-size:.82rem;color:var(--green-deep)}.place-chip small{overflow:hidden;color:var(--muted);font-size:.61rem;text-overflow:ellipsis;white-space:nowrap}.place-chip em{margin-top:3px;color:var(--orange);font-style:normal;font:500 .58rem "DM Mono",monospace}.place-chip:hover{border-color:var(--orange);transform:translateY(-2px)}
@media(max-width:540px){.letter-reading-bar{align-items:flex-start;flex-direction:column;gap:4px}}
@media(max-width:540px){.letter-places{grid-template-columns:1fr}}
.resource-modal{position:fixed;inset:0;z-index:20;display:grid;place-items:center}.resource-backdrop{position:absolute;inset:0;background:rgba(20,39,29,.42);backdrop-filter:blur(5px)}.resource-envelope{position:relative;width:min(560px,calc(100% - 28px));min-height:330px;perspective:1200px}.resource-envelope-front,.resource-pane{border:1px solid rgba(45,96,66,.2);border-radius:22px;background:var(--card);box-shadow:0 28px 80px rgba(18,43,28,.28)}.resource-envelope-front{display:grid;place-items:center;align-content:center;gap:10px;min-height:330px;padding:35px;text-align:center;transition:transform .6s cubic-bezier(.2,.8,.2,1),opacity .3s}.resource-envelope-front .envelope-icon{font-size:3.3rem;color:var(--orange)}.resource-envelope-front h3{margin:6px 0 10px;font-family:"Noto Serif SC",serif;font-size:1.45rem}.resource-envelope.is-open .resource-envelope-front{position:absolute;inset:0;opacity:0;transform:rotateX(-90deg);pointer-events:none}.resource-pane{position:absolute;inset:0;min-height:330px;padding:34px;opacity:0;transform:translateY(20px) scale(.96);transition:transform .5s .18s,opacity .35s .18s;pointer-events:none;overflow:auto}.resource-envelope.is-open .resource-pane{opacity:1;transform:none;pointer-events:auto}.resource-meta h2{margin:7px 0 8px;font-family:"Noto Serif SC",serif}.resource-meta p{color:var(--muted);font-size:.76rem;line-height:1.7}.resource-map{width:100%;height:360px;margin-top:14px;border:0;border-radius:14px}.resource-image-only{display:block;width:auto;max-width:100%;height:auto;max-height:80vh;margin:auto;border-radius:14px;object-fit:contain}.music-resource{display:grid;gap:18px;align-content:start}.resource-album-art{display:block;width:min(100%,360px);height:auto;aspect-ratio:1;border-radius:15px;object-fit:cover;box-shadow:0 12px 30px rgba(18,43,28,.15)}.resource-summary{display:flex;gap:18px;align-items:flex-start}.resource-summary p{color:var(--muted);font-size:.78rem;line-height:1.8}.resource-book-cover{width:120px;max-height:180px;object-fit:cover;border-radius:8px;box-shadow:0 8px 20px rgba(18,43,28,.15)}.resource-fallback{color:var(--muted);font-size:.78rem;line-height:1.7}.resource-pane .modal-close{position:absolute;right:14px;top:12px}
.inline-resource-link{color:var(--green);font-weight:800;text-decoration:underline;text-decoration-color:rgba(236,139,94,.55);text-decoration-thickness:2px;text-underline-offset:3px;cursor:pointer}.inline-resource-link:hover{color:var(--orange)}
.resource-envelope.image-mode #resource-modal-content{display:flex;align-items:center;justify-content:center}.resource-envelope.image-mode .resource-pane .modal-close{right:18px;top:18px}.resource-audio{display:block;width:100%;margin-top:14px}.resource-apple-link{display:block;margin-top:12px}.resource-netease-player{display:block;width:100%;height:86px;margin-top:14px;border:0;border-radius:10px;background:#f1f3e9}
.resource-envelope:not(.image-mode){width:min(760px,calc(100% - 28px));height:min(720px,calc(100vh - 32px));min-height:0}.resource-envelope:not(.image-mode) .resource-pane{height:100%;min-height:0;padding:42px;overflow:auto}.resource-envelope.music-mode{width:min(720px,calc(100% - 24px));height:min(760px,calc(100vh - 24px));min-height:0}.resource-envelope.music-mode .resource-pane{height:100%;min-height:0;max-height:none;overflow:auto}.resource-envelope.music-mode .music-resource{display:flex;flex-direction:column;align-items:stretch;gap:22px}.resource-envelope.music-mode .resource-album-art{width:min(100%,360px);max-width:360px;margin:0 auto}.resource-envelope.music-mode .resource-meta p{margin:10px 0}.resource-envelope.image-mode .resource-content{display:flex;align-items:center;justify-content:center}.resource-envelope.image-mode .resource-pane{overflow:hidden}
.music-introduction{max-height:none;overflow:visible}.food-resource-image{display:block;width:min(100%,520px);max-height:300px;margin:0 auto 20px;border-radius:16px;object-fit:cover}.food-place{color:var(--green-deep)!important;font-weight:800}.food-resource .resource-map{height:250px}
.resource-envelope.music-mode .music-top{display:grid;grid-template-columns:minmax(220px,42%) minmax(0,1fr);align-items:center;gap:30px}.resource-envelope.music-mode .music-introduction{width:100%;padding-top:22px;border-top:1px solid var(--line)}.resource-envelope.music-mode .music-introduction p{margin:10px 0 0;color:var(--muted);font-family:"Noto Serif SC",serif;font-size:.82rem;line-height:1.85}.resource-envelope.music-mode .music-controls{min-width:0}.resource-envelope.music-mode .resource-pane{overflow:hidden}
@media(max-width:540px){.resource-envelope.music-mode .music-top{grid-template-columns:1fr;gap:18px}.resource-envelope.music-mode .resource-album-art{max-width:260px}.resource-envelope.music-mode .resource-pane{overflow:auto}}
.resource-envelope.image-mode{width:auto;min-width:0;min-height:0}.resource-envelope.image-mode .resource-pane{position:relative;inset:auto;min-height:0;max-width:calc(100vw - 28px);max-height:calc(100vh - 28px);padding:12px;overflow:hidden}.resource-envelope.image-mode .resource-content{display:flex;align-items:center;justify-content:center}.resource-envelope.image-mode .resource-pane .modal-close{right:18px;top:18px}.resource-audio{display:block;width:100%;margin-top:14px}
.inline-resource-icon{display:inline-block;margin-left:4px;color:var(--orange);font-family:system-ui,sans-serif;font-size:.82em;text-decoration:none}
.map-canvas{width:100%;height:100%;min-height:500px;z-index:0}.leaflet-container{font-family:"Manrope","Noto Sans SC",sans-serif;background:#dfeadd}.leaflet-popup-content-wrapper{border-radius:12px}.leaflet-popup-content{font-size:.72rem;line-height:1.5}
.route-regions{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 14px}.route-region{border:1px solid var(--line);border-radius:999px;padding:8px 14px;background:rgba(255,254,248,.78);color:var(--muted);font-size:.7rem;font-weight:800}.route-region.is-active{border-color:var(--green);background:var(--green);color:#fffef8}.trajectory-stop{border:0;text-align:left;background:transparent;cursor:pointer}.trajectory-stop:hover strong{color:var(--orange)}
@media(max-width:820px){.map-canvas{min-height:340px;height:340px}}@media(max-width:540px){.map-canvas{min-height:290px;height:290px}}
.resource-loading{color:var(--muted);font:500 .7rem "DM Mono",monospace}.resource-video{width:100%;height:260px;margin-top:14px;border:0;border-radius:14px}.resource-image{display:block;width:100%;max-height:300px;margin-top:14px;border-radius:14px;object-fit:contain;background:#edf0e5}.resource-image-small{float:left;width:120px;height:120px;margin:0 15px 8px 0}.resource-summary{overflow:auto;color:var(--muted);font-size:.76rem;line-height:1.8}.resource-source{display:inline-block;margin-top:14px;color:var(--green);font-size:.65rem;font-weight:800}.author-resource{display:flex;flex-direction:column;gap:22px}.author-resource-top{display:grid;grid-template-columns:minmax(170px,34%) minmax(0,1fr);align-items:center;gap:28px}.author-resource-image{display:block;width:100%;max-width:240px;max-height:280px;margin:0 auto;border-radius:15px;object-fit:cover;box-shadow:0 12px 30px rgba(18,43,28,.15)}.author-resource-placeholder{display:grid;place-items:center;aspect-ratio:1;background:linear-gradient(145deg,#e6e8d9,#c9d5bc);color:var(--green-deep);font:700 3rem "Noto Serif SC",serif}.author-resource-meta{min-height:210px;padding:22px 0 18px;border-bottom:1px solid var(--line)}.author-resource-meta h2{font-size:clamp(1.7rem,4vw,2.6rem);line-height:1.15;letter-spacing:.04em}.author-resource-intro{padding-top:22px;border-top:1px solid var(--line)}.author-resource-intro p{margin:10px 0 0;color:var(--muted);font-family:"Noto Serif SC",serif;font-size:.82rem;line-height:1.9;white-space:pre-line}.author-title-mark{margin-top:28px;color:var(--green);font:700 clamp(4rem,10vw,7rem)/.8 "Noto Serif SC",serif;opacity:.18}.author-work-shelf{margin-top:24px}.author-work-shelf>div{display:flex;gap:8px;margin-top:9px}.author-work-shelf img{width:44px;height:62px;border-radius:4px;object-fit:cover;box-shadow:0 5px 12px rgba(18,43,28,.16)}
.letter-map-wrap{background:#d9e4d7}.letter-map{display:block;width:100%;height:100%;min-height:480px;border:0;filter:saturate(.72) sepia(.12)}.map-stamp{position:absolute;left:18px;top:18px;display:flex;flex-direction:column;gap:4px;max-width:calc(100% - 36px);padding:12px 14px;border-radius:14px;background:rgba(255,254,248,.88);box-shadow:0 8px 20px rgba(30,73,53,.12);backdrop-filter:blur(8px)}.map-stamp strong{font-family:"Noto Serif SC",serif;font-size:1rem}.map-stamp small{color:var(--muted);font-size:.6rem}.trajectory-card{display:grid;grid-template-columns:.7fr 1.3fr;gap:28px;margin-top:18px;padding:27px 30px}.trajectory-card h3{margin:0 0 8px;font-family:"Noto Serif SC",serif;font-size:1.35rem}.trajectory-card p{margin:0;color:var(--muted);font-size:.72rem;line-height:1.7}.trajectory-list{display:flex;gap:14px;overflow-x:auto;padding:4px 0 10px}.trajectory-stop{display:flex;gap:9px;min-width:150px;padding-right:18px;border-right:1px solid var(--line)}.trajectory-dot{display:grid;flex:0 0 25px;place-items:center;width:25px;height:25px;border-radius:50%;background:var(--green);color:#fffef8;font:500 .62rem "DM Mono",monospace}.trajectory-stop strong,.trajectory-stop small,.trajectory-stop p{display:block}.trajectory-stop strong{color:var(--green-deep);font-family:"Noto Serif SC",serif;font-size:.85rem}.trajectory-stop small{margin:3px 0;color:var(--muted);font:500 .58rem "DM Mono",monospace}.trajectory-stop p{font-size:.62rem}.trajectory-empty{color:var(--muted);font-size:.72rem}
@media(max-width:820px){.trajectory-card{grid-template-columns:1fr;gap:16px}.letter-map{min-height:260px}}
.author-work-link{display:flex;flex-direction:column;align-items:center;gap:5px;width:58px;color:var(--muted);font-size:.56rem;line-height:1.25;text-align:center;text-decoration:none}.author-work-link img{width:44px;height:62px;border-radius:4px;object-fit:cover;box-shadow:0 5px 12px rgba(18,43,28,.16);transition:transform .2s ease,box-shadow .2s ease}.author-work-link:hover img,.author-work-link:focus-visible img{transform:translateY(-4px) scale(1.04);box-shadow:0 9px 18px rgba(18,43,28,.24)}

/* The archive reads like a travel contact sheet rather than a plain list. */
.archive-list{display:grid;gap:14px;padding-bottom:34px}
.archive-item{position:relative;display:grid;grid-template-columns:42px 116px minmax(0,1fr) auto;align-items:center;gap:18px;overflow:hidden;padding:14px 18px 14px 14px;transition:transform .25s ease,box-shadow .25s ease}
.archive-item:hover{transform:translateY(-3px);box-shadow:0 18px 38px rgba(28,61,40,.12)}
.archive-number{align-self:stretch;display:grid;place-items:center;border-right:1px solid var(--line);color:var(--orange);font:700 .74rem "DM Mono",monospace}
.archive-thumb{display:block;width:116px;height:92px;border-radius:13px;object-fit:cover;background:#e5eadb}
.archive-thumb-empty{display:grid;place-items:center;color:var(--green);font-size:1.8rem}
.archive-copy{min-width:0}
.archive-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:.61rem}
.archive-place{color:var(--green-deep);font-weight:700}
.archive-copy h3{margin:7px 0 6px;font-family:"Noto Serif SC",serif;font-size:1.12rem;line-height:1.35;letter-spacing:-.02em}
.archive-copy p{display:-webkit-box;margin:0;color:var(--muted);font-size:.72rem;line-height:1.65;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2}
.archive-music{display:block;margin-top:8px;color:var(--orange);font:600 .62rem "DM Mono",monospace;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.archive-open{white-space:nowrap}.archive-open span{margin-left:5px;color:var(--orange)}
@media(max-width:720px){.archive-item{grid-template-columns:34px 88px minmax(0,1fr);gap:12px;padding-right:14px}.archive-thumb{width:88px;height:82px}.archive-open{grid-column:3;justify-self:start;margin-top:8px}.archive-copy h3{font-size:1rem}}
@media(max-width:460px){.archive-item{grid-template-columns:30px 1fr;align-items:start}.archive-number{grid-row:span 2}.archive-thumb{width:100%;height:120px}.archive-copy{grid-column:2}.archive-open{grid-column:2}.archive-meta{gap:6px}}
.auth-gate{position:fixed;inset:0;z-index:50;display:grid;place-items:center;padding:24px;background:rgba(223,234,221,.9);backdrop-filter:blur(14px)}.auth-gate.is-hidden{display:none}.auth-card{width:min(430px,100%);padding:42px;border-radius:26px;box-shadow:0 26px 70px rgba(30,73,53,.18)}.auth-mark{display:grid;place-items:center;width:58px;height:58px;margin-bottom:22px;border-radius:18px;background:var(--green);font-size:30px}.auth-card h1{margin:0;font:600 2rem "Noto Serif SC",serif}.auth-copy{margin:10px 0 26px;color:var(--muted);font-size:.78rem;line-height:1.7}.auth-card label{display:block;margin-top:14px;color:var(--green-deep);font-size:.7rem;font-weight:800}.auth-card input{display:block;width:100%;margin-top:7px;padding:12px 13px;border:1px solid var(--line);border-radius:11px;background:#f8f8ef;outline:0}.auth-card input:focus{border-color:var(--orange);box-shadow:0 0 0 3px rgba(236,139,94,.14)}.auth-card .button{width:100%;margin-top:22px}.auth-toggle{margin:17px auto 0}.auth-error{min-height:18px;margin:10px 0 0;color:#b45238;font-size:.68rem}
.archive-empty{position:relative;display:grid;grid-template-columns:180px minmax(0,1fr) 180px;align-items:center;gap:30px;min-height:300px;padding:38px 42px;overflow:hidden;background:linear-gradient(120deg,rgba(255,254,248,.95),rgba(225,237,219,.82))}.archive-empty:after{content:"";position:absolute;width:260px;height:260px;right:-75px;top:-105px;border-radius:50%;background:rgba(244,197,100,.28)}.archive-empty-art{position:relative;display:grid;place-items:center;width:160px;height:160px;border:1px dashed rgba(45,96,66,.38);border-radius:50%;background:rgba(255,254,248,.52);transform:rotate(-7deg)}.archive-empty-art span{position:absolute;left:22px;top:20px;color:var(--orange);font-size:3.2rem;transform:rotate(-13deg)}.archive-empty-art b{position:absolute;right:22px;bottom:20px;font-size:3.1rem;transform:rotate(8deg)}.archive-empty-art i{width:68px;border-top:1px solid var(--orange);color:var(--orange);font-style:normal;transform:rotate(24deg)}.archive-empty-copy{position:relative;z-index:1}.archive-empty-copy h3{margin:0 0 12px;font-family:"Noto Serif SC",serif;font-size:clamp(1.45rem,3vw,2.25rem);letter-spacing:-.05em}.archive-empty-copy p{max-width:470px;margin:0 0 20px;color:var(--muted);font-size:.78rem;line-height:1.9}.archive-empty-copy .button span{margin-left:8px}.archive-empty-route{position:relative;z-index:1;align-self:end;padding:16px;border-left:2px solid var(--yellow)}.archive-empty-route span,.archive-empty-route small{display:block;color:var(--muted);font:500 .6rem "DM Mono",monospace;letter-spacing:.08em}.archive-empty-route strong{display:block;margin:8px 0;color:var(--green-deep);font-family:"Noto Serif SC",serif;font-size:1rem}.settings-account{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-top:25px;padding-top:20px;border-top:1px solid var(--line)}.settings-account strong,.settings-account small{display:block}.settings-account strong{font-size:.82rem}.settings-account small{margin-top:5px;color:var(--muted);font-size:.65rem}@media(max-width:820px){.archive-empty{grid-template-columns:130px minmax(0,1fr);gap:22px;padding:30px}.archive-empty-art{width:120px;height:120px}.archive-empty-art span{left:15px;top:13px;font-size:2.5rem}.archive-empty-art b{right:14px;bottom:13px;font-size:2.4rem}.archive-empty-route{grid-column:2}.settings-account{align-items:flex-start}}@media(max-width:540px){.archive-empty{grid-template-columns:1fr;padding:28px}.archive-empty-art{margin:0 auto}.archive-empty-route{grid-column:1}.settings-account{display:block}.settings-account .button{margin-top:14px}}
.time-manager-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:4px 0 26px}.time-manager-row strong,.time-manager-row small{display:block}.time-manager-row strong{margin:7px 0;color:var(--green-deep);font-family:"Noto Serif SC",serif;font-size:1.35rem}.time-manager-row small{color:var(--muted);font-size:.7rem}.time-manager-row small b{color:var(--green)}.time-settings-modal{position:fixed;inset:0;z-index:30;display:grid;place-items:center;padding:20px}.time-settings-backdrop{position:absolute;inset:0;background:rgba(20,39,29,.42);backdrop-filter:blur(5px)}.time-settings-panel{position:relative;width:min(520px,100%);padding:38px;border-radius:24px;box-shadow:0 28px 80px rgba(18,43,28,.28)}.time-settings-panel h3{margin:0 0 8px;font-family:"Noto Serif SC",serif;font-size:2rem}.time-settings-panel>p{margin:0;color:var(--muted);font-size:.75rem;line-height:1.7}.time-settings-panel .modal-close{position:absolute;right:16px;top:13px}.time-settings-fields{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:26px 0}.time-settings-fields label{display:block;color:var(--green-deep);font-size:.68rem;font-weight:800}.time-settings-fields input{display:block;width:100%;margin-top:8px;padding:13px 8px;border:1px solid var(--line);border-radius:11px;background:#f8f8ef;color:var(--green-deep);font:500 1.05rem "DM Mono",monospace;text-align:center;outline:0}.time-settings-fields input:focus{border-color:var(--orange)}.time-settings-fields span{display:block;margin-top:5px;color:var(--muted);font-size:.6rem;font-weight:400;text-align:center}@media(max-width:540px){.time-settings-panel{padding:32px 24px}.time-settings-fields{grid-template-columns:1fr}.time-manager-row{align-items:flex-start;flex-direction:column}}
.time-manager-row{flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:12px 0 28px}.time-manager-row .button{min-width:132px}.time-manager-row small{line-height:1.7}
.time-settings-panel{text-align:center}.time-settings-panel .eyebrow{margin-bottom:10px}.time-settings-panel>p{max-width:330px;margin:0 auto}.time-settings-fields{max-width:390px;margin-left:auto;margin-right:auto}.time-settings-fields label{text-align:center}.time-settings-panel>#save-settings{display:block;margin:0 auto}
.settings-card .time-manager-row{flex-direction:row;align-items:center;justify-content:space-between;text-align:left;padding:4px 0 26px}.settings-card .time-manager-row .button{min-width:auto}.settings-card .time-manager-row small{line-height:1.7}
@media(max-width:540px){.settings-card .time-manager-row{align-items:center;flex-direction:row;text-align:left}}
@media(max-width:600px){
  html,body{width:100%;overflow-x:hidden}
  .app-shell{width:calc(100% - 24px);padding-bottom:env(safe-area-inset-bottom)}
  .site-header{height:auto;min-height:68px;gap:10px;padding-top:env(safe-area-inset-top)}
  .brand{min-width:0;gap:8px}.brand-frog{width:34px;height:34px;font-size:18px}.brand strong{font-size:.9rem}.brand small{font-size:.53rem}
  .page-nav{gap:3px;padding:4px}.nav-button{min-width:0;gap:4px;padding:9px 4px;font-size:.7rem}.nav-button small{display:none}.nav-badge{min-width:14px;height:14px;font-size:.5rem}
  .view{padding:22px 0 26px;min-height:calc(100vh - 130px)}.view-intro{margin-bottom:20px}.view-intro h1,.view-intro h2{font-size:clamp(1.9rem,10vw,2.65rem);line-height:1.15}.view-note{font-size:.7rem;line-height:1.7}
  .world-clock-strip{width:100%;justify-content:space-between;margin-top:14px;padding:11px 12px;font-size:.64rem}.world-clock-strip strong{font-size:.72rem}
  .timer-layout{gap:12px}.timer-panel{padding:24px 19px;border-radius:22px}.timer-topline{gap:8px}.timer-display{margin:36px 0 10px;font-size:clamp(4.35rem,20vw,5.3rem);letter-spacing:-.13em}.timer-message{font-size:.72rem}.timer-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:21px 0 18px}.timer-actions .button-large{grid-column:1 / -1;width:100%;min-width:0}.timer-actions .button{padding:11px 10px}.mode-switcher{flex-wrap:wrap}.mode-button{flex:1;min-width:0;padding:7px 5px;font-size:.6rem}.timer-aside{padding:19px;border-radius:22px;gap:18px}.task-label input{font-size:1rem}
  .letter-card{border-radius:20px}.letter-photo-wrap,.letter-photo{height:220px;min-height:220px}.map-stamp{left:11px;top:11px;max-width:calc(100% - 22px);padding:9px 11px}.map-stamp strong{font-size:.82rem}.letter-content{padding:21px 18px}.letter-content h3{font-size:clamp(1.55rem,8vw,2.1rem)}.letter-body{font-size:.79rem;line-height:1.88}.letter-reading-bar{font-size:.62rem}.letter-time-grid{gap:0;margin:18px 0}.letter-time-grid>div{padding:9px 0;border-bottom:1px solid var(--line)}.letter-time-grid>div:last-child{border-bottom:0}.detail-block{padding:12px}.letter-places{grid-template-columns:1fr}.place-chip{min-width:0}.place-chip strong,.place-chip small{overflow-wrap:anywhere}.letter-sources{gap:7px}.source-link{overflow-wrap:anywhere}
  .trajectory-card{margin-top:12px;padding:19px 18px;border-radius:20px}.trajectory-list{display:grid;gap:0;overflow:visible}.trajectory-stop{min-width:0;width:100%;padding:12px 0;border-right:0;border-bottom:1px solid var(--line)}.trajectory-stop:last-child{border-bottom:0}
  .archive-item{border-radius:18px}.archive-copy p{font-size:.68rem}.archive-open{white-space:nowrap}
  .settings-card{padding:20px 18px}.settings-row{gap:9px;padding:18px 0}.settings-row strong{font-size:.84rem}.settings-row small{font-size:.63rem}.settings-row input{width:68px}.settings-side{padding:22px 19px;border-radius:20px}.settings-account{margin-top:20px}
  .auth-gate{padding:16px}.auth-card{padding:28px 21px;border-radius:22px}.auth-card h1{font-size:1.75rem}
  .letter-modal,.resource-modal,.time-settings-modal{padding:10px}.modal-letter-pane{width:100%;max-height:calc(100vh - 20px);padding:18px}.modal-stage{width:100%;min-height:300px}.envelope-face{width:min(100%,390px);height:215px}.resource-envelope:not(.image-mode){width:100%;height:calc(100vh - 20px);min-height:0}.resource-envelope:not(.image-mode) .resource-pane{height:100%;min-height:0;max-height:none;padding:26px 18px}.resource-envelope.music-mode{width:100%;height:calc(100vh - 20px);min-height:0}.resource-envelope.music-mode .resource-pane{height:100%;min-height:0;max-height:none;padding:26px 18px}.resource-envelope.music-mode .resource-album-art{max-width:min(72vw,260px)}.resource-envelope.music-mode .music-top{grid-template-columns:1fr;gap:18px}.resource-envelope.music-mode .music-introduction p{font-size:.78rem}.resource-video{height:min(56vw,220px)}.resource-map{height:min(72vw,300px)}.author-resource-top{grid-template-columns:1fr;gap:16px}.author-resource-image{max-width:190px}.time-settings-panel{width:100%;padding:28px 20px}.time-settings-panel h3{font-size:1.7rem}
  .resource-audio{height:40px}.resource-apple-link,.resource-netease-link{overflow-wrap:anywhere;line-height:1.5}.resource-netease-player{height:78px}
  #view-timer{padding-top:16px}
  #view-timer .view-intro{display:grid;gap:14px;margin-bottom:14px}
  #view-timer .view-intro>div:first-child{padding:0 4px}
  #view-timer .eyebrow{margin-bottom:8px;font-size:.55rem;letter-spacing:.11em}
  #view-timer .view-intro h1{max-width:12em;font-size:clamp(2rem,10.5vw,2.75rem);letter-spacing:-.075em}
  #view-timer .world-clock-strip{margin-top:0;border-radius:14px;background:rgba(255,254,248,.9);box-shadow:0 7px 18px rgba(42,63,47,.04)}
  #view-timer .timer-layout{display:flex;flex-direction:column;gap:12px}
  #view-timer .timer-panel{min-height:0;padding:22px 18px 19px;border-radius:22px;box-shadow:0 15px 32px rgba(30,73,53,.2)}
  #view-timer .timer-topline{padding-bottom:2px}
  #view-timer .timer-display{margin:34px 0 8px;text-align:center;font-size:clamp(4.2rem,21vw,5.35rem)}
  #view-timer .timer-message{text-align:center}
  #view-timer .progress-track{height:4px}
  #view-timer .timer-actions{margin:20px 0 17px}
  #view-timer .mode-switcher{padding-top:2px}
  #view-timer .timer-aside{order:2;padding:18px;border-radius:20px;background:rgba(255,254,248,.9)}
  #view-timer .frog-card{padding-bottom:17px}
  #view-timer .aside-note{padding:12px}
}
/* Keep the envelope copy clear of its action button. */
.envelope-face{padding-bottom:96px}
.envelope-face .modal-open-button{bottom:14px}
@media(max-width:540px){.envelope-face{padding-bottom:88px}.envelope-face .modal-open-button{bottom:11px}}
/* Keep the received-letter pane wide enough for long-form letters. */
.modal-stage{width:min(720px,100%);min-height:420px}
.modal-letter-pane{width:min(660px,94vw);height:min(760px,86vh);max-height:none;padding:36px 40px}
@media(max-width:540px){.modal-stage{min-height:300px}.modal-letter-pane{width:100%;height:calc(100vh - 20px);max-height:none;padding:22px 18px}}
.time-settings-actions{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:10px;margin-top:4px}.time-settings-actions .button-primary{min-width:150px}.time-settings-actions .button-quiet-light{min-width:72px}@media(max-width:540px){.time-settings-actions{display:grid;grid-template-columns:1fr 1fr}.time-settings-actions .button-primary{grid-column:1/-1;width:100%}.time-settings-actions .button{width:100%}}
.map-popup-image{display:block;width:160px;height:92px;margin:0 0 8px;border-radius:9px;object-fit:cover}