:root{--bg:#f5f3ef;--surface:#fbfaf7;--white:#fff;--blue:#647d91;--blue-dark:#40586b;--text:#29353d;--muted:#718087;--border:#e5e1da;--soft:#e9eef0;--success:#4d7a68}*{box-sizing:border-box}html,body{min-height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif}button,input{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}.map-page{min-height:100vh;padding:18px}.map-nav{display:flex;align-items:center;justify-content:space-between;gap:20px;width:min(1440px,100%);margin:0 auto 14px}.brand{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:750;letter-spacing:.03em}.mark{display:grid;place-items:center;width:32px;height:32px;border-radius:10px;background:var(--blue);color:#fff;font-size:16px}.map-nav-copy{flex:1;margin:0;color:var(--blue-dark);font-size:13px;font-weight:700}.map-nav-copy span{color:var(--muted);font-weight:400}.nav-right{display:flex;align-items:center;gap:10px}.nav-link{border:1px solid var(--border);border-radius:9px;background:var(--surface);color:var(--blue-dark);padding:8px 12px;font-size:12px}.nav-link:hover{border-color:#b7c4cc;background:var(--white)}.map-workspace{display:grid;grid-template-columns:minmax(0,1fr) 372px;overflow:hidden;width:min(1440px,100%);height:calc(100vh - 82px);min-height:560px;margin:auto;border:1px solid var(--border);border-radius:22px;background:var(--white);box-shadow:0 12px 36px rgba(41,53,61,.08)}.map-canvas-wrap{position:relative;min-width:0;overflow:hidden;background:#edf1ee}.amap-container{position:absolute;z-index:1;inset:0;width:100%;height:100%}.map-loading{position:absolute;z-index:5;top:50%;left:50%;transform:translate(-50%,-50%);border:1px solid var(--border);border-radius:999px;background:rgba(251,250,247,.94);padding:9px 13px;color:var(--blue-dark);font-size:12px;box-shadow:0 5px 14px rgba(41,53,61,.08)}.map-error{position:absolute;z-index:8;top:50%;left:50%;display:grid;gap:10px;width:min(360px,calc(100% - 36px));transform:translate(-50%,-50%);border:1px solid #ddc1b5;border-radius:15px;background:rgba(255,250,247,.97);padding:18px;color:#704b42;box-shadow:0 12px 30px rgba(41,53,61,.16)}.map-error strong{font-size:14px}.map-error span{font-size:12px;line-height:1.65}.map-error button{justify-self:start;border:0;border-radius:8px;background:var(--blue);padding:8px 11px;color:#fff;font-size:12px}.map-search-area{position:absolute;z-index:6;top:18px;left:18px;width:min(390px,calc(100% - 36px))}.search-box{display:flex;align-items:center;gap:9px;min-height:46px;padding:0 11px 0 14px;border:1px solid rgba(229,225,218,.95);border-radius:13px;background:rgba(255,255,255,.96);color:var(--blue-dark);box-shadow:0 7px 20px rgba(41,53,61,.1);backdrop-filter:blur(10px)}.search-box span{font-size:22px;line-height:1}.search-box input{min-width:0;flex:1;border:0;outline:0;background:transparent;color:var(--text);font-size:13px}.search-box input::placeholder{color:var(--muted)}.search-box button,.close-panel{display:grid;place-items:center;width:27px;height:27px;border:0;border-radius:50%;background:var(--soft);color:var(--blue-dark);font-size:18px;line-height:1}.search-results{overflow:auto;max-height:255px;margin-top:7px;padding:6px;border:1px solid var(--border);border-radius:13px;background:rgba(255,255,255,.98);box-shadow:0 10px 25px rgba(41,53,61,.12)}.search-result{display:grid;grid-template-columns:1fr auto;gap:8px;width:100%;border:0;border-radius:9px;background:transparent;padding:10px;text-align:left;color:var(--text)}.search-result:hover,.search-result:focus-visible{background:var(--soft);outline:none}.search-result strong{display:block;font-size:13px}.search-result span{color:var(--muted);font-size:11px}.search-result small{align-self:center;color:var(--blue-dark);font-size:11px}.filter-bar{position:absolute;z-index:5;top:76px;left:18px;display:flex;max-width:calc(100% - 36px);gap:7px;overflow-x:auto;padding:2px}.filter-chip{flex:0 0 auto;min-height:32px;border:1px solid rgba(229,225,218,.95);border-radius:999px;background:rgba(255,255,255,.92);color:var(--blue-dark);padding:0 11px;font-size:11px;box-shadow:0 4px 14px rgba(41,53,61,.06)}.filter-chip:hover{border-color:#a8bbc5}.filter-chip.is-active{border-color:var(--blue);background:var(--blue);color:#fff}.map-notice{position:absolute;z-index:6;top:119px;left:18px;max-width:min(480px,calc(100% - 36px));margin:0;border:1px solid rgba(229,225,218,.95);border-radius:10px;background:rgba(255,255,255,.93);padding:8px 10px;color:var(--blue-dark);font-size:11px;line-height:1.55;box-shadow:0 4px 14px rgba(41,53,61,.06)}.map-notice.is-error{border-color:#ddc1b5;background:rgba(255,248,245,.95);color:#8b5148}.map-notice.is-demo{border-color:#d7c4a8;background:rgba(255,250,238,.95);color:#795d36}.map-meta{position:absolute;z-index:5;bottom:18px;left:18px;display:flex;align-items:center;gap:6px;border:1px solid rgba(229,225,218,.95);border-radius:10px;background:rgba(255,255,255,.91);padding:8px 10px;color:var(--muted);font-size:11px;box-shadow:0 4px 14px rgba(41,53,61,.06);backdrop-filter:blur(10px)}.live-dot{width:7px;height:7px;border-radius:50%;background:var(--success);box-shadow:0 0 0 3px rgba(77,122,104,.15)}.live-dot.is-error{background:#bb6d62;box-shadow:0 0 0 3px rgba(187,109,98,.15)}.live-dot.is-muted{background:#9aa9ad;box-shadow:0 0 0 3px rgba(154,169,173,.16)}.meta-divider{color:#b4bec2}.map-actions{position:absolute;z-index:5;right:17px;bottom:17px;display:grid;gap:7px}.map-action{display:grid;place-items:center;width:36px;height:36px;border:1px solid var(--border);border-radius:10px;background:rgba(255,255,255,.94);color:var(--blue-dark);font-size:15px;box-shadow:0 5px 14px rgba(41,53,61,.09)}.map-action:hover,.map-action[aria-pressed="false"]{border-color:#a8bbc5;background:var(--soft)}.map-attribution{position:absolute;z-index:5;right:16px;bottom:143px;color:rgba(64,88,107,.72);font-size:10px;text-shadow:0 1px 1px rgba(255,255,255,.8)}.aircraft-panel{z-index:7;overflow:auto;border-left:1px solid var(--border);background:var(--surface)}.panel-empty{display:grid;place-content:center;min-height:100%;padding:32px;text-align:center}.empty-icon{display:grid;place-items:center;width:50px;height:50px;margin:0 auto 16px;border-radius:15px;background:var(--soft);color:var(--blue-dark);font-size:23px}.panel-empty h1{margin:0 0 8px;font-size:18px}.panel-empty p{max-width:250px;margin:0;color:var(--muted);font-size:13px;line-height:1.7}.aircraft-detail{padding:22px}.detail-top{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}.eyebrow{margin:0 0 5px;color:var(--success);font-size:11px;font-weight:700}.detail-top h1{margin:0;color:var(--text);font-size:28px;letter-spacing:-.04em}.detail-call{margin:4px 0 0;color:var(--muted);font-size:12px}.route-card{display:grid;grid-template-columns:1fr 66px 1fr;align-items:center;gap:8px;margin:23px 0 18px;padding:15px;border:1px solid var(--border);border-radius:14px;background:var(--white)}.route-card>div{min-width:0}.destination{text-align:right}.airport-code{display:block;color:var(--blue-dark);font-size:16px;font-weight:750}.airport-name{display:block;overflow:hidden;margin-top:3px;color:var(--muted);font-size:11px;text-overflow:ellipsis;white-space:nowrap}.route-line{position:relative;color:var(--blue);font-size:16px;text-align:center}.route-line:before{position:absolute;z-index:0;top:50%;right:0;left:0;height:1px;background:#b7c4cc;content:""}.route-line span{position:relative;z-index:1;background:var(--white);padding:0 4px}.flight-stats{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:0}.flight-stats>div{padding:11px;border-radius:11px;background:#edf1f1}.flight-stats dt,.info-list dt{margin-bottom:4px;color:var(--muted);font-size:10px}.flight-stats dd{margin:0;color:var(--blue-dark);font-size:14px;font-weight:750}.detail-section{margin-top:24px}.detail-section h2{margin:0 0 11px;font-size:14px}.info-list{display:grid;grid-template-columns:1fr 1fr;gap:12px 8px;margin:0}.info-list>div{min-width:0}.info-list dd{overflow:hidden;margin:0;color:var(--text);font-size:12px;font-weight:600;text-overflow:ellipsis;white-space:nowrap}.tag-list{display:flex;flex-wrap:wrap;gap:6px;margin-top:22px}.detail-tag{border-radius:999px;background:#e5edf0;color:var(--blue-dark);padding:5px 8px;font-size:10px;font-weight:700}.detail-tag.special{background:#f3e4d4;color:#955d2a}.data-note{margin:20px 0 0;padding-top:14px;border-top:1px solid var(--border);color:var(--muted);font-size:11px;line-height:1.6}.aircraft-marker{display:grid;place-items:center;width:31px;height:31px;transform:translate(-50%,-50%);border:0;border-radius:50%;background:transparent;color:#40586b;filter:drop-shadow(0 2px 2px rgba(41,53,61,.2));font-size:24px;line-height:1;cursor:pointer}.aircraft-marker .marker-plane{display:block;transform-origin:center}.aircraft-marker.is-selected{color:#b57439;filter:drop-shadow(0 2px 5px rgba(138,84,32,.38))}.aircraft-marker.is-special{color:#a06a3d}.aircraft-marker-label{position:absolute;top:27px;left:50%;transform:translateX(-50%);min-width:max-content;border:1px solid rgba(229,225,218,.98);border-radius:6px;background:rgba(255,255,255,.92);padding:3px 5px;color:#40586b;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;font-size:10px;font-weight:700;line-height:1;pointer-events:none}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;clip-path:inset(50%)}html[data-theme="dark"] .search-box,html[data-theme="dark"] .search-results,html[data-theme="dark"] .filter-chip:not(.is-active),html[data-theme="dark"] .map-meta,html[data-theme="dark"] .map-action,html[data-theme="dark"] .map-loading{background:rgba(24,36,43,.94)}html[data-theme="dark"] .route-card{background:#1a252c}html[data-theme="dark"] .route-line span{background:#1a252c}html[data-theme="dark"] .flight-stats>div{background:#263841}html[data-theme="dark"] .aircraft-marker-label{border-color:#344852;background:rgba(24,36,43,.94);color:#c0d5e0}@media(max-width:900px){.map-workspace{grid-template-columns:minmax(0,1fr) 326px}.map-nav-copy{display:none}}@media(max-width:720px){.map-page{padding:0}.map-nav{height:58px;margin:0;padding:0 15px}.map-nav .nav-link:first-child{display:none}.map-workspace{display:block;height:calc(100vh - 58px);min-height:0;border-right:0;border-bottom:0;border-left:0;border-radius:0}.aircraft-panel{position:absolute;z-index:9;right:0;bottom:0;left:0;max-height:min(66vh,520px);overflow:auto;transform:translateY(calc(100% - 69px));border:1px solid var(--border);border-right:0;border-bottom:0;border-left:0;border-radius:20px 20px 0 0;background:var(--surface);box-shadow:0 -10px 30px rgba(41,53,61,.16);transition:transform .28s ease}.aircraft-panel:before{display:block;width:34px;height:4px;margin:10px auto 0;border-radius:999px;background:#b9c5c8;content:""}.aircraft-panel.has-selection{transform:none}.panel-empty{display:block;min-height:68px;padding:10px 18px 14px;text-align:left}.panel-empty .empty-icon{display:none}.panel-empty h1{font-size:13px}.panel-empty p{display:none}.aircraft-detail{padding:13px 18px 28px}.map-search-area{top:13px;left:13px;width:calc(100% - 26px)}.filter-bar{top:69px;left:13px;max-width:calc(100% - 26px)}.map-notice{top:109px;left:13px;max-width:calc(100% - 26px)}.map-meta{bottom:83px;left:13px;max-width:calc(100% - 82px);overflow:hidden;white-space:nowrap}.map-actions{right:13px;bottom:88px}.map-attribution{right:13px;bottom:216px}.detail-top h1{font-size:26px}.close-panel{width:31px;height:31px}.aircraft-marker{width:28px;height:28px;font-size:22px}.aircraft-marker-label{display:none}}@media(max-width:420px){.filter-chip{padding:0 9px}.map-meta .meta-divider:nth-of-type(2),.map-meta #updatedAt{display:none}.map-attribution{display:none}}@media(prefers-reduced-motion:reduce){.aircraft-panel{transition:none}}
[hidden]{display:none!important}
.map-canvas-wrap{height:100%}

/* Airport spotting heatmap */
.heat-legend{position:absolute;z-index:5;top:78px;left:18px;display:flex;flex-wrap:wrap;gap:8px;border:1px solid rgba(229,225,218,.95);border-radius:10px;background:rgba(255,255,255,.93);padding:7px 9px;color:var(--muted);font-size:10px;box-shadow:0 4px 14px rgba(41,53,61,.06)}
.heat-legend span{display:flex;align-items:center;gap:4px}.heat-legend i{width:8px;height:8px;border-radius:50%}.green{background:#4d8a68}.blue{background:#4f82ad}.yellow{background:#d7bc3e}.orange{background:#d6813f}.red{background:#c94f49}
.airport-panel{z-index:7;display:flex;min-width:0;overflow:hidden;border-left:1px solid var(--border);background:var(--surface)}
.airport-list-view,.airport-detail{width:100%;min-height:0}.airport-list-view{display:flex;flex-direction:column}.airport-panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:23px 22px 13px}.airport-panel-head h1{margin:2px 0 6px;font-size:24px;letter-spacing:-.04em}.airport-panel-head p{margin:0;color:var(--muted);font-size:11px}.airport-boost-button{flex:0 0 auto;border:1px solid var(--blue);border-radius:9px;background:var(--blue);padding:9px 11px;color:#fff;font-size:11px;font-weight:700;white-space:nowrap}.airport-boost-button:hover{border-color:var(--blue-dark);background:var(--blue-dark)}
.panel-search{display:flex;align-items:center;gap:8px;margin:0 18px 12px;padding:0 11px;border:1px solid var(--border);border-radius:10px;background:var(--white);color:var(--blue-dark)}.panel-search input{width:100%;height:39px;border:0;outline:0;background:transparent;color:var(--text);font-size:12px}
.airport-list{min-height:0;overflow:auto;padding:0 12px 16px}.airport-option{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:10px;width:100%;margin-bottom:5px;border:1px solid transparent;border-radius:11px;background:transparent;padding:10px;text-align:left;color:var(--text)}.airport-option:hover,.airport-option.is-active{border-color:var(--border);background:var(--white)}.airport-option strong{display:block;overflow:hidden;font-size:12px;text-overflow:ellipsis;white-space:nowrap}.airport-option small{display:block;margin-top:4px;color:var(--muted);font-size:10px}.heat-value{display:grid;place-items:center;min-width:31px;height:25px;border-radius:999px;background:var(--soft);font-size:11px}.heat-green{color:#3e7757}.heat-blue{color:#3c7199}.heat-yellow{color:#a98713}.heat-orange{color:#b4672d}.heat-red{color:#b33f3a}
.aircraft-panel,.airport-list,.airport-detail{scrollbar-width:thin;scrollbar-color:#9aadb7 transparent}.aircraft-panel::-webkit-scrollbar,.airport-list::-webkit-scrollbar,.airport-detail::-webkit-scrollbar{width:7px}.aircraft-panel::-webkit-scrollbar-track,.airport-list::-webkit-scrollbar-track,.airport-detail::-webkit-scrollbar-track{margin:8px 0;background:transparent}.aircraft-panel::-webkit-scrollbar-thumb,.airport-list::-webkit-scrollbar-thumb,.airport-detail::-webkit-scrollbar-thumb{border:2px solid transparent;border-radius:999px;background:#9aadb7;background-clip:padding-box}
.airport-detail{overflow:auto;padding:22px}.airport-detail .detail-top{margin-bottom:18px}.airport-detail .detail-top h1{font-size:24px}.airport-heat-card{display:grid;grid-template-columns:1fr auto;align-items:end;gap:3px;padding:15px;border:1px solid var(--border);border-radius:14px;background:var(--white)}.airport-heat-card span{color:var(--muted);font-size:11px}.airport-heat-card strong{grid-row:1 / span 2;grid-column:2;font-size:32px;line-height:1}.airport-heat-card small{color:var(--muted);font-size:10px}
.spot-section{margin-top:22px}.spot-section-head,.spot-form-title{display:flex;align-items:center;justify-content:space-between;gap:12px}.spot-section-head h2,.spot-form-title h2{margin:0;font-size:14px}.spot-section-head span{color:var(--muted);font-size:11px}.spot-list{display:grid;gap:8px;margin:11px 0}.spot-empty{margin:0;padding:18px;border:1px dashed var(--border);border-radius:11px;color:var(--muted);font-size:11px;line-height:1.6;text-align:center}.spot-card{padding:12px;border:1px solid var(--border);border-radius:12px;background:var(--white)}.spot-card strong{font-size:12px}.spot-card p{margin:5px 0;color:var(--text);font-size:11px;line-height:1.5}.spot-card small{display:block;color:var(--muted);font-size:10px;line-height:1.6}.spot-author{display:flex;align-items:center;gap:6px;margin-top:10px;color:var(--muted);font-size:10px;text-decoration:none}.spot-author:hover{color:var(--blue-dark)}.spot-author i{display:grid;place-items:center;width:22px;height:22px;overflow:hidden;border-radius:7px;background:var(--soft);font-style:normal}.spot-author img{width:100%;height:100%;object-fit:cover}
.share-spot-button{width:100%;min-height:40px;border:0;border-radius:10px;background:var(--blue);padding:9px 12px;color:#fff;font:inherit;font-size:12px;font-weight:700}.share-spot-button:hover{background:var(--blue-dark)}.share-spot-button:disabled{opacity:.6;cursor:wait}
.spot-restriction{margin:0;padding:12px 14px;border:1px solid #d8aa72;border-radius:10px;background:#fff8ec;color:#7b542d;font-size:11px;line-height:1.65;text-align:center}
.spot-form-section{margin-top:20px;padding-top:18px;border-top:1px solid var(--border)}.spot-form-title button{border:0;background:transparent;color:var(--blue-dark);font-size:11px}.coordinate-help{margin:9px 0 13px;color:var(--muted);font-size:10px;line-height:1.5}.spot-form-section form{display:grid;gap:11px}.spot-form-section label{display:grid;gap:5px;color:var(--text);font-size:11px}.spot-form-section input,.spot-form-section textarea{width:100%;border:1px solid var(--border);border-radius:9px;outline:0;background:var(--white);color:var(--text);font:inherit;font-size:12px}.spot-form-section input{height:39px;padding:0 10px}.spot-form-section textarea{min-height:78px;padding:10px;resize:vertical;line-height:1.5}.spot-form-section input:focus,.spot-form-section textarea:focus{border-color:var(--blue)}.coordinate-fields{display:grid;grid-template-columns:1fr 1fr;gap:8px}.spot-form-message{min-height:16px;margin:0;color:var(--blue-dark);font-size:10px}.spot-form-message.is-error{color:#a34f47}
.coordinate-help-highlight{color:#27343c;font-weight:800;background:#ffeb3b;-webkit-box-decoration-break:clone;box-decoration-break:clone}
.map-action[aria-pressed="false"]{border-color:var(--border);background:rgba(255,255,255,.94)}.map-action[aria-pressed="true"]{border-color:var(--blue-dark);background:var(--blue);color:#fff}
.map-action-icon{display:block;width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.spot-card[data-spot-id]{cursor:pointer}.spot-card[data-spot-id]:hover,.spot-card[data-spot-id]:focus-visible,.spot-card.is-selected{border-color:var(--blue);outline:0}.spot-author-identity{display:inline-flex;min-width:0;align-items:baseline}.spot-author .user-title{align-self:baseline;margin-left:2px;padding:.7px 2.8px;transform:none;font-size:6.4px;line-height:1.1;vertical-align:baseline}
.airport-marker{display:grid;place-items:center;width:25px;height:25px;transform:translate(-50%,-50%);border:2px solid rgba(255,255,255,.96);border-radius:50%;background:var(--airport-heat);color:#fff;font:inherit;font-size:8px;font-weight:800;box-shadow:0 2px 7px rgba(41,53,61,.25);cursor:pointer}.airport-marker.is-selected{width:33px;height:33px;border-width:3px;font-size:10px;box-shadow:0 0 0 4px rgba(64,88,107,.22),0 4px 12px rgba(41,53,61,.3)}.spot-marker{display:block;width:4px;height:4px;transform:translate(-50%,-50%);border-radius:50%;background:#e12626;opacity:.8;cursor:pointer}.spot-marker.is-selected{width:8px;height:8px;opacity:1;box-shadow:0 0 0 5px rgba(225,38,38,.2)}
html[data-theme="dark"] .heat-legend{background:rgba(24,36,43,.94)}html[data-theme="dark"] .panel-search,html[data-theme="dark"] .airport-option:hover,html[data-theme="dark"] .airport-option.is-active,html[data-theme="dark"] .airport-heat-card,html[data-theme="dark"] .spot-card,html[data-theme="dark"] .spot-form-section input,html[data-theme="dark"] .spot-form-section textarea{background:#1a252c}
html[data-theme="dark"] .spot-restriction{border-color:#765d3f;background:#2c261d;color:#e4c99f}
@media(max-width:720px){.airport-panel{position:absolute;z-index:9;right:0;bottom:0;left:0;display:flex;max-height:45vh;border:1px solid var(--border);border-right:0;border-bottom:0;border-left:0;border-radius:20px 20px 0 0;background:var(--surface);box-shadow:0 -10px 30px rgba(41,53,61,.16)}.airport-panel.has-selection{max-height:68vh}.airport-list-view,.airport-detail{max-height:inherit}.airport-panel-head{padding:14px 18px 10px}.airport-panel-head h1{font-size:17px}.panel-search{margin:0 14px 9px}.airport-detail{padding:15px 18px 28px}.heat-legend{top:69px;left:13px;max-width:calc(100% - 26px)}.map-notice{top:116px}.map-meta{bottom:calc(45vh + 12px)}.map-actions{bottom:calc(45vh + 12px)}.map-attribution{display:none}}