:root{color-scheme:dark;--bg:#080e18;--panel:#111925;--line:#26303d;--text:#eef3f5;--muted:#82909f;--mint:#b6f5da;--green:#83eac1}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:14px}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button{color:inherit;background:none;border:0}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--mint);outline-offset:4px}button:disabled{cursor:default;opacity:.45}a{color:inherit;text-decoration:none}button:hover{color:var(--mint)}
.header{height:88px;border-bottom:1px solid #1c2531;display:flex;align-items:center;padding:0 44px;gap:70px}.brand{display:flex;align-items:center;gap:13px;font-size:25px;font-weight:700;letter-spacing:2px}.brand-icon{font-size:37px;color:var(--mint);transform:rotate(-12deg)}.brand-en{display:block;font-size:9px;letter-spacing:3px;margin-top:1px;font-weight:500;color:var(--muted)}nav{display:flex;align-self:stretch;align-items:center;gap:38px;font-size:13px;color:var(--muted)}.nav-active{position:relative;height:100%;display:flex;align-items:center;color:var(--text)}.nav-active:after{content:"";position:absolute;bottom:0;width:25px;height:2px;background:var(--mint);left:calc(50% - 12px)}nav button{padding:0;font-size:13px}#historyCount{font-size:10px;border:1px solid #364150;border-radius:4px;padding:1px 5px;margin-left:5px}.header-note{margin-left:auto;font-size:12px;letter-spacing:1px;color:#97a6ae;display:flex;align-items:center;gap:8px}.header-note i,.live-dot{display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--mint)}main{display:grid;grid-template-columns:350px minmax(0,1fr);min-height:calc(100vh - 88px)}
.planner{padding:43px 30px 20px 35px;border-right:1px solid #202a36;background:linear-gradient(145deg,#121b28 0%,#0e1621 100%);position:relative;z-index:3}.eyebrow{font-size:9px;letter-spacing:2px;color:var(--mint);display:flex;gap:7px;align-items:center;font-weight:600}.eyebrow>span{width:15px;height:1px;background:var(--mint)}h1{font-size:39px;font-weight:600;line-height:1.43;letter-spacing:1px;margin:18px 0 12px}.accent{color:var(--mint)}.intro{font-size:12px;line-height:1.9;color:var(--muted);margin:0 0 28px}.route-inputs{position:relative;padding-left:22px}.route-line{position:absolute;left:2px;top:33px;bottom:30px;width:6px;display:flex;flex-direction:column;align-items:center}.route-line i{width:7px;height:7px;border:1px solid var(--mint);border-radius:50%}.route-line i:last-child{background:var(--mint);border-radius:1px}.route-line span{flex:1;border-left:1px dashed #465866;margin:7px 0}.city-field{border:1px solid #2b3643;background:#17212d;border-radius:9px;padding:12px 36px 12px 15px;position:relative;height:79px}.city-field:focus-within{border-color:#729c91}.city-field label{font-size:10px;color:#a6b1ba;display:block;margin-bottom:7px}.city-field label span{font-size:8px;letter-spacing:1px;color:#677889;margin-left:7px}.city-field input{width:100%;color:var(--text);font-weight:500;font-size:17px;outline:none;border:none;background:none;padding:0}.city-field input::placeholder{font-size:12px;color:#6d7a88;font-weight:400}.pick{position:absolute;right:10px;bottom:12px;font-size:21px;color:#768995}.swap{position:relative;display:block;margin:-8px 13px -8px auto;width:27px;height:27px;border:1px solid #394758;border-radius:50%;background:#1c2a38;z-index:5;font-size:16px;color:var(--mint)}.suggestions{position:absolute;left:0;right:0;top:calc(100% + 5px);border:1px solid #405261;background:#1b2936;z-index:20;border-radius:8px;max-height:235px;overflow:auto;box-shadow:0 14px 30px #0009;padding:4px}.suggestions button{display:flex;justify-content:space-between;gap:5px;text-align:left;width:100%;padding:10px;border-radius:5px;font-size:13px}.suggestions button:hover,.suggestions button.active{background:#31473f}.suggestions small{font-size:10px;color:#96a6ae;align-self:center}.no-results{font-size:12px;color:var(--muted);padding:12px;line-height:1.7}.field-heading{font-size:11px;margin:24px 0 12px;color:#aab4bd}.field-heading span{font-size:8px;color:#6b7b8b;margin-left:8px;letter-spacing:1px}.modes{display:grid;grid-template-columns:repeat(4,1fr);gap:7px}.mode{display:flex;flex-direction:column;gap:9px;align-items:center;border:1px solid #2d3947;border-radius:8px;background:#15202c;padding:13px 0 10px;color:#8998a8;font-size:11px}.mode svg{width:21px;height:21px;stroke:currentColor;stroke-width:1.45;fill:none;stroke-linecap:round;stroke-linejoin:round}.mode.selected{color:var(--mint);background:#1d3934;border-color:#84b8a1}.primary{height:48px;width:100%;margin-top:23px;background:var(--mint);color:#10291f;border-radius:7px;font-size:13px;font-weight:650;display:flex;align-items:center;justify-content:space-between;padding:0 18px}.primary:hover{background:#d0ffe9;color:#10291f}.primary span{font-size:21px}.error{font-size:11px;color:#ffbcab;margin:8px 0 0;min-height:3px}.inspiration{border-top:1px solid var(--line);padding-top:21px;margin-top:16px;font-size:10px;display:flex;justify-content:space-between;color:#7f8d9a}.inspiration button{font-size:10px;color:#c0d2ce;padding:0}.presets{display:flex;flex-direction:column;margin-top:10px;gap:1px}.presets button{font-size:11px;text-align:left;padding:9px 0;color:#c4cdd2}.presets button>span{color:#718494;margin:0 6px}.presets small{float:right;font-size:9px;color:#697f8f}.planner-footer{display:flex;gap:12px;align-items:center;margin-top:23px;color:#86929d}.tiny-globe{font-size:24px;color:#789a90}.planner-footer p{font-size:10px;line-height:1.8;margin:0}.planner-footer p span{font-size:9px;color:#607180}
.world{position:relative;min-height:790px;overflow:hidden;background:radial-gradient(ellipse at 52% 38%,#132e39 0%,#0a1521 40%,#080e18 73%)}.map-top{position:absolute;top:27px;left:33px;right:30px;display:flex;justify-content:space-between;z-index:1;color:#7a8c99;font-size:9px;letter-spacing:1.6px}.map-top div{display:flex;align-items:center;gap:9px}.map-top>span{font-size:10px;letter-spacing:1px;border:1px solid #293844;border-radius:5px;padding:6px 9px}.globe-shell{position:absolute;inset:0 0 185px}#globe{width:100%;height:100%;touch-action:none;cursor:grab}#globe:active{cursor:grabbing}.globe-caption{position:absolute;left:30px;right:30px;top:57%;display:flex;justify-content:space-between;color:#384e5e;font-size:9px;letter-spacing:2px;pointer-events:none}.map-tools{position:absolute;right:28px;top:130px;display:flex;flex-direction:column;background:#111d29e8;border:1px solid #2d3a48;border-radius:9px;width:38px;padding:5px 0}.map-tools button{height:36px;font-size:20px;color:#a0b2bd}.map-tools button[aria-pressed=true]{color:var(--mint)}.map-tools span{height:1px;background:#2a3744;margin:4px 8px}.map-hint{position:absolute;top:65px;left:33px;z-index:1;font-size:10px;color:#667e8d}.map-hint span{margin:0 7px}.map-legend{position:absolute;bottom:306px;left:38px;display:flex;gap:7px;align-items:center;font-size:9px;color:#798e9b}.map-legend i{width:16px;height:2px;background:var(--mint)}.map-legend i.remaining{margin-left:9px;background:none;border-top:1px dashed #739185}.journey-card{position:absolute;bottom:52px;left:36px;right:36px;background:linear-gradient(120deg,#15222feb,#121c29f5);border:1px solid #30404e;border-radius:14px;padding:20px 24px 12px;box-shadow:0 12px 40px #0003;backdrop-filter:blur(16px)}.journey-head{display:flex;align-items:center;justify-content:space-between}.journey-title{display:flex;gap:13px;align-items:center}.journey-symbol{font-size:24px;width:43px;height:43px;border:1px solid #39574f;background:#233d38;display:flex;align-items:center;justify-content:center;border-radius:11px;color:var(--mint)}.journey-label{font-size:9px;color:#91a2ad}.journey-label span{margin-left:8px;letter-spacing:1.5px;font-size:8px;color:#628f81}h2{font-size:21px;font-weight:550;margin:5px 0 0;letter-spacing:1px}.route-arrow{color:#769486;font-size:19px;margin:0 17px}.save-btn{font-size:10px;border:1px solid #364654;border-radius:6px;padding:8px 12px;color:#96a9b4}.stats{display:grid;grid-template-columns:1fr 1fr 1fr;margin:19px 0 19px;max-width:570px}.stats>div{padding-left:24px;border-left:1px solid #30404c}.stats>div:first-child{padding-left:0;border:0}.stats span{color:#8196a5;font-size:9px}.stats strong{font-size:23px;font-weight:500;letter-spacing:.5px;display:block;margin-top:5px}.stats small{font-size:11px;color:#9cabb5;font-weight:400;letter-spacing:0}.playback{display:flex;gap:15px;align-items:center}.play-btn{background:var(--mint);border-radius:50%;color:#142c23;width:33px;height:33px;flex-shrink:0;font-size:12px}.play-btn:hover{color:#142c23;background:#d0ffe9}.progress-wrap{flex:1;min-width:0}.progress-label{display:flex;justify-content:space-between;font-size:9px;color:#8fa69e;margin-bottom:6px}input[type=range]{display:block;width:100%;height:3px;appearance:none;background:linear-gradient(to right,var(--mint) 0%,var(--mint) var(--p,0%),#344654 var(--p,0%),#344654 100%);border-radius:2px;margin:8px 0;cursor:pointer}input[type=range]::-webkit-slider-thumb{appearance:none;width:8px;height:8px;border-radius:50%;background:var(--mint)}input[type=range]::-moz-range-thumb{width:8px;height:8px;border:0;border-radius:50%;background:var(--mint)}#speedBtn{font-size:10px;padding:6px 9px;border:1px solid #374856;border-radius:4px;color:#c4d7cc;min-width:36px}.restart{font-size:23px;color:#7f949f;padding:0}.simulation-note{margin:11px 0 0;font-size:9px;color:#617a89}.map-bottom{position:absolute;left:37px;right:36px;bottom:21px;display:flex;justify-content:space-between;font-size:9px;color:#4f6574}.map-bottom span:first-child{letter-spacing:1px}#mapLoading{position:absolute;top:40%;width:100%;text-align:center;color:var(--mint);font-size:12px;pointer-events:none}
dialog{border:1px solid #364856;border-radius:16px;background:#111c29;color:var(--text);width:min(500px,calc(100% - 30px));padding:28px;max-height:80vh}dialog::backdrop{background:#02070bc9;backdrop-filter:blur(6px)}.dialog-head{display:flex;justify-content:space-between;align-items:center}.dialog-head h2{font-size:25px;margin-top:10px}.dialog-head>button{font-size:27px;color:#9aacb7}.dialog-intro{font-size:12px;color:var(--muted);margin:16px 0 25px}.saved-route{display:flex;gap:12px;align-items:center;border-top:1px solid #2a3947;padding:15px 0}.saved-route .load-route{flex:1;text-align:left;font-size:14px;padding:0}.saved-route small{display:block;font-size:10px;color:var(--muted);margin-top:7px}.delete-route{font-size:11px;color:#9aafba}.empty-history{padding:25px 0;color:#8ca09e;line-height:2;text-align:center;font-size:13px}#toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);z-index:100;background:#d4ffe9;color:#13392a;padding:12px 22px;border-radius:8px;box-shadow:0 10px 25px #0004;font-size:12px;max-width:90%;text-align:center}[hidden]{display:none!important}
@media(min-width:1500px){main{grid-template-columns:380px minmax(0,1fr)}.planner{padding-left:45px;padding-right:40px}.world{min-height:calc(100vh - 88px)}.journey-card{left:65px;right:65px;bottom:65px;padding:24px 30px 15px}.map-bottom{bottom:28px;left:65px;right:65px}.map-legend{left:65px;bottom:334px}.globe-shell{inset:0 0 200px}}
@media(max-width:1000px){.header{padding:0 25px;gap:40px}.header-note{display:none}main{grid-template-columns:300px minmax(0,1fr)}.planner{padding:33px 22px}h1{font-size:34px}.world{min-height:790px}.journey-card{left:18px;right:18px;padding:17px 17px 12px}.stats>div{padding-left:13px}.stats strong{font-size:19px}.map-tools{right:17px}.map-top,.map-hint{left:22px}.route-arrow{margin:0 8px}.save-btn{padding:7px;font-size:9px}h2{font-size:17px}.journey-symbol{width:34px;height:34px}.journey-title{gap:8px}}
@media(max-width:700px){.header{height:70px;padding:0 22px;gap:25px}.brand{font-size:21px;gap:8px}.brand-icon{font-size:29px}.brand-en{font-size:7px;letter-spacing:2px}nav{gap:22px;margin-left:auto;font-size:12px}nav button{font-size:12px}main{display:flex;flex-direction:column}.planner{padding:25px 22px 23px;border-right:0;border-bottom:1px solid #273442}.eyebrow{font-size:8px}h1{font-size:29px;line-height:1.3;margin:12px 0 8px}h1 br{display:none}.intro{margin:0 0 20px;font-size:11px}.intro br{display:none}.route-inputs{display:flex;gap:10px;padding:0}.route-line{display:none}.city-field{flex:1;min-width:0;padding:10px 27px 10px 12px;height:69px}.city-field input{font-size:15px}.city-field label{font-size:9px}.pick{font-size:19px;right:5px;bottom:9px}.swap{position:absolute;left:calc(50% - 13px);top:25px;margin:0;transform:rotate(90deg)}.field-heading{margin-top:18px}.modes{gap:8px}.mode{flex-direction:row;justify-content:center;padding:11px 0;gap:8px}.mode svg{width:19px;height:19px}.primary{margin-top:17px;height:43px}.inspiration{margin-top:12px;padding-top:15px}.presets{flex-direction:row;gap:7px;margin-top:9px}.presets button{background:#17232e;border:1px solid #2c3a47;border-radius:5px;flex:1;text-align:center;padding:9px 3px;font-size:10px}.presets small{display:none}.presets button>span{margin:0 3px}.planner-footer{display:none}.world{min-height:720px}.globe-shell{inset:0 0 180px}.map-top{top:23px;left:22px;right:22px}.map-hint{top:65px;font-size:9px}.map-tools{top:117px;right:15px;width:33px}.map-tools button{height:32px}.map-legend{left:22px;bottom:295px}.journey-card{bottom:49px;left:15px;right:15px;padding:17px}.stats{margin:19px 0}.stats strong{font-size:21px}.stats>div{padding-left:17px}.map-bottom{left:22px;right:22px;font-size:8px}.journey-title h2{font-size:18px}.globe-caption{display:none}}
@media(max-width:700px){.stats{grid-template-columns:1fr 1.3fr .9fr}.stats>div{padding-left:12px}.stats strong{font-size:20px}#duration{font-size:16px;line-height:25px;white-space:nowrap}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}}
.planner{padding-top:30px}h1{font-size:34px;margin:14px 0 10px}.intro{font-size:11px;margin-bottom:22px}.itinerary-heading{display:flex;align-items:center;justify-content:space-between;font-size:11px;color:#afc2ca;margin-bottom:13px}.itinerary-heading small{font-size:9px;color:#6e9390;margin-left:9px}.itinerary-heading button{font-size:10px;color:#b7d1c5;padding:3px}.itinerary-editor{max-height:430px;overflow:auto;overscroll-behavior:contain;padding:2px 6px 4px 0;scrollbar-width:thin;scrollbar-color:#3d6059 #14212c;position:relative}.stop-row{display:flex;align-items:flex-start;gap:8px;position:relative}.stop-number{flex:0 0 19px;width:19px;height:19px;margin-top:20px;border-radius:50%;border:1px solid #4b7968;display:flex;align-items:center;justify-content:center;font-size:9px;color:var(--mint);background:#172e29}.stop-field{flex:1;min-width:0;height:auto;min-height:60px;padding:9px 30px 9px 11px}.stop-field label{margin-bottom:5px;font-size:9px}.stop-field input{font-size:15px}.stop-field .pick{top:28px;bottom:auto;right:5px;font-size:19px}.stop-field .suggestions{position:relative;left:auto;right:auto;top:auto;margin:10px -22px 0 -3px;max-height:190px;box-shadow:none}.stop-field .suggestions button{padding:9px 6px;font-size:12px}.stop-field .suggestions small{font-size:9px}.remove-stop{flex:0 0 17px;width:17px;margin-top:18px;padding:0;color:#6f8894;font-size:20px}.leg-control{display:flex;justify-content:space-between;align-items:center;margin:5px 25px 5px 28px;padding-left:10px;border-left:1px dashed #46695d;height:28px;color:#70948a;font-size:9px}.leg-control select{border:1px solid #34473f;border-radius:5px;background:#182a2c;padding:3px 7px;max-width:115px;font-size:10px;cursor:pointer;outline-offset:3px}.leg-control option{background:#15222b;color:#e1eae6}.add-stop{margin-top:12px;width:100%;height:34px;border:1px dashed #456257;color:#b0d8c2;border-radius:6px;font-size:11px;background:#18302a66}.add-stop:hover{background:#264437}.primary{margin-top:15px}.draft-notice{font-size:10px;line-height:1.7;color:#b9cba8;margin:9px 0 0}.example-btn{font-size:9px;text-align:left;line-height:1.8;color:#9bbfaf;margin-top:12px;padding:8px 0;border-top:1px solid #2a3c40;width:100%}.planner-footer{margin-top:14px}.journey-segments{display:flex;gap:7px;overflow-x:auto;scrollbar-width:thin;scrollbar-color:#3c5750 transparent;padding:14px 0 7px;margin-bottom:2px}.segment-chip{flex-shrink:0;display:flex;align-items:center;gap:12px;border:1px solid #334551;border-radius:5px;padding:7px 9px;font-size:10px;color:#8fa8b4;background:#10202b;white-space:nowrap}.segment-chip small{font-size:9px;color:var(--segment-color)}.segment-chip.active{color:#ecf9ef;border-color:var(--segment-color);background:#29403a}.journey-label #legLabel{margin-left:0;letter-spacing:0;font-size:9px;color:#b1c7be}.globe-shell{bottom:240px}.map-legend{bottom:362px}.stats{margin-top:12px}.saved-route .load-route{min-width:0;overflow-wrap:anywhere;line-height:1.65}.delete-route{flex-shrink:0}
@media(min-width:1500px){.map-legend{bottom:390px}.globe-shell{bottom:255px}}
@media(max-width:700px){.planner{padding-top:25px}h1{font-size:29px}.intro{margin-bottom:20px}.itinerary-editor{max-height:430px}.stop-field input{font-size:16px}.leg-control select{font-size:12px;padding:3px 10px;max-width:125px}.remove-stop{width:25px;flex-basis:25px}.itinerary-heading{font-size:12px}.itinerary-heading button{font-size:11px}.example-btn{font-size:10px}.journey-segments{padding-top:12px}.map-legend{bottom:350px}.globe-shell{bottom:230px}.stats{margin-top:13px}.world{min-height:750px}}
main{align-items:start}.world{height:calc(100vh - 88px);position:sticky;top:0}.itinerary-editor{max-height:465px}
@media(max-width:700px){main{align-items:stretch}.world{width:100%;height:750px;position:relative;top:auto}}
/* Map and playback come first; the editor is revealed only on request. */
main{display:flex;flex-direction:column;align-items:stretch}.world{width:100%;position:relative;top:auto;min-height:620px;height:calc(100vh - 88px);height:calc(100svh - 88px)}.planner{width:100%;max-width:680px;margin:0 auto;padding:28px 28px 32px;border:1px solid #2a3d47;border-radius:14px;scroll-margin-top:15px}.planner-heading{display:flex;align-items:center;justify-content:space-between;margin:7px 0 14px}.planner-heading h1{font-size:27px;margin:0}.planner-heading button{color:#b7c9c4;font-size:12px;border:1px solid #3d544c;padding:8px 13px;border-radius:6px}.planner-heading h1:focus{outline:none}.journey-card{width:calc(100% - 72px);max-width:1000px;left:50%;right:auto;transform:translateX(-50%)}.journey-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}.edit-journey-btn{border:1px solid #8cbba5;background:#b6f5da;color:#153529;border-radius:6px;font-size:11px;font-weight:600;padding:8px 13px;min-height:34px}.edit-journey-btn:hover{background:#d0ffe9;color:#153529}.journey-actions .save-btn{min-height:34px}.globe-caption{pointer-events:none}
@media(max-width:700px){.world{height:calc(100vh - 70px);height:calc(100svh - 70px);min-height:580px}.planner{border-radius:0;margin:0;border-left:0;border-right:0;padding:24px 22px 30px}.journey-card{width:calc(100% - 30px);padding:12px 14px 10px;bottom:35px}.journey-actions{gap:6px}.edit-journey-btn{padding:7px 10px}.journey-actions .save-btn{padding:7px 8px}.journey-segments{padding:10px 0 4px}.stats{margin:10px 0}.simulation-note{margin-top:8px;line-height:1.5}.globe-shell{top:60px;bottom:283px}.map-legend{bottom:287px}.map-tools{top:99px}.map-bottom{bottom:12px}.planner-heading h1{font-size:25px}.intro{line-height:1.8}}
@media(max-width:340px){.journey-head{flex-wrap:wrap;gap:10px}.journey-actions{width:100%;justify-content:flex-end}.globe-shell{bottom:330px}.map-legend{bottom:334px}.header{padding:0 14px;gap:14px}nav{gap:12px}}