:root{--paper:#f3efe7;--ink:#292722;--muted:#726e66;--line:rgba(41,39,34,.17);--orange:#f15325;--green:#4f765b;--shadow:0 24px 60px rgba(54,45,33,.12)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Noto Sans CJK SC",Arial,sans-serif;background-image:linear-gradient(rgba(63,57,47,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(63,57,47,.035) 1px,transparent 1px);background-size:42px 42px}.nav{height:82px;padding:0 clamp(28px,4vw,76px);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;background:rgba(243,239,231,.9);backdrop-filter:blur(16px)}a{color:inherit;text-decoration:none}.brand{font:600 36px Georgia,serif}.nav nav{display:flex;gap:34px;font-size:12px;font-weight:700}.nav nav a{padding:12px 0}.nav nav .on{color:var(--orange);border-bottom:2px solid var(--orange)}main{overflow:hidden}.section{min-height:calc(100vh - 82px);padding:clamp(64px,8vh,100px) clamp(28px,5vw,92px);display:grid;grid-template-columns:minmax(300px,.72fr) minmax(650px,1.55fr);gap:clamp(54px,6vw,110px);align-items:center;border-bottom:1px solid var(--line)}.copy{max-width:510px}.kick{color:var(--orange);font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.copy h1,.copy h2{font-family:Georgia,"Songti SC",serif;font-weight:500;letter-spacing:0;line-height:1.18;margin:24px 0}.copy h1{font-size:clamp(48px,5vw,82px)}.copy h2{font-size:clamp(38px,4vw,64px)}.lead{font-size:17px;line-height:1.9;color:#4e4a43}.copy dl{display:flex;gap:34px;border-top:1px solid var(--line);padding-top:18px;margin:30px 0}.copy dt,.copy small,.note{font-size:12px;color:var(--muted)}.copy dd{margin:5px 0;font-weight:650}.copy ul{padding:0;list-style:none;line-height:2}.copy li:before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--orange);margin-right:12px}.primary,.secondary,.rail button,.tabs button,.tools button{font:inherit}.primary{border:0;background:var(--orange);color:white;padding:15px 28px;min-width:170px;cursor:pointer;transition:.25s}.primary:hover,.primary:focus-visible{transform:translateY(-2px);box-shadow:0 10px 24px rgba(241,83,37,.24)}.primary.small{min-width:0;padding:12px 18px}.secondary{border:1px solid var(--line);background:transparent;padding:10px 16px;cursor:pointer}.note{margin-top:18px}.phone{position:relative;width:min(390px,33vw);aspect-ratio:9/18.5;padding:10px;border-radius:54px;background:#171717;box-shadow:var(--shadow);overflow:hidden}.screen{width:100%;height:100%;border-radius:45px;overflow:hidden;position:relative;background:#dceaf0}.screen>img{width:100%;height:100%;object-fit:cover}.demo{display:flex;align-items:center;justify-content:center;gap:38px;position:relative}.demo:before{content:"";position:absolute;width:560px;height:560px;border:1px solid var(--line);border-radius:50%;z-index:-1}.voice,.answer,.camera,.cancel{position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity .5s}.voice{inset:auto 5% 5%;height:29%;border-radius:0 0 36px 36px;background:linear-gradient(transparent,#25dbe1);display:flex;flex-direction:column;justify-content:flex-end;align-items:center;padding:50px 22px 35px}.voice i{display:block;width:80%;height:44px;border-radius:30px;margin-top:18px;background:radial-gradient(circle at 70% 50%,white 0 6px,transparent 7px),repeating-linear-gradient(90deg,rgba(255,255,255,.85) 0 3px,transparent 3px 8px)}.answer{inset:auto 7% 17%;height:auto;background:rgba(41,39,34,.84);color:white;padding:17px 20px;border-radius:8px}.answer p{margin:5px 0 0;font-size:13px}.camera img{width:100%;height:100%;object-fit:cover}.camera b{position:absolute;top:24%;left:45%;padding:10px 15px;border-radius:7px;background:rgba(41,39,34,.75);color:white}.demo[data-state=listening] .voice,.demo[data-state=answer] .answer,.demo[data-state=camera] .camera,.lab-phone[data-ui-state=listening] .voice,.lab-phone[data-ui-state=cancel] .voice,.lab-phone[data-ui-state=cancel] .cancel,.lab-phone[data-ui-state=camera] .camera{opacity:1}.cancel{inset:auto 22% 21%;height:auto;text-align:center;padding:12px;color:white;background:rgba(41,39,34,.76);border-radius:24px}.hot{position:absolute;border:0;background:transparent;cursor:pointer;z-index:4}.hot.talk{left:48%;right:5%;bottom:4%;height:10%}.hot.cam{left:22%;bottom:4%;width:18%;height:10%}.hot:focus-visible{outline:3px solid var(--orange)}.status{display:flex;flex-direction:column;gap:18px;color:#999}.status span{font-size:13px}.status span:before{content:"";display:inline-block;width:7px;height:7px;border:1px solid currentColor;border-radius:50%;margin-right:10px}.status .on{color:var(--orange);font-weight:700}.demo .secondary{position:absolute;right:0;bottom:0}.ui-lab,.rag-lab,.query-lab{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:28px 0;min-width:0}.ui-lab{display:grid;grid-template-columns:170px minmax(250px,360px) 1fr;gap:28px;align-items:center}.rail{align-self:stretch;display:flex;flex-direction:column;justify-content:center;border-right:1px solid var(--line)}.rail button,.tabs button,.tools button{border:0;background:none;text-align:left;padding:14px;color:var(--muted);cursor:pointer}.rail button.on,.tabs button.on{color:var(--orange);font-weight:700}.rail button.on:before{content:"";display:inline-block;width:18px;height:2px;background:var(--orange);margin-right:8px;vertical-align:middle}.lab-phone{width:280px;border-radius:40px;padding:8px}.lab-phone .screen{border-radius:33px}.judgments{display:grid;gap:22px}.judgments article{padding-bottom:20px;border-bottom:1px solid var(--line)}.judgments b{font-family:Georgia,"Songti SC",serif;font-size:19px}.judgments p{color:var(--muted);line-height:1.6}.range{grid-column:1/-1}.range input,.play input{width:100%;accent-color:var(--orange)}.range div{display:flex;justify-content:space-between;font-size:11px;color:var(--muted)}.rag-lab{display:grid;grid-template-columns:160px 1fr 190px;position:relative}.tabs{grid-column:1/-1;display:flex;border-bottom:1px solid var(--line);margin-bottom:22px}.tabs button{min-width:130px;text-align:center}.art{padding-right:22px;border-right:1px solid var(--line)}.art img{width:100%;aspect-ratio:4/3;object-fit:cover;mix-blend-mode:multiply}.art p{font-size:13px}.diag{padding:0 28px}.diag h3{font:500 23px Georgia,"Songti SC",serif;margin-top:0}.wrong,.fixed{padding:16px;border-left:2px solid var(--orange);background:rgba(255,255,255,.28);margin:14px 0}.fixed{border-color:var(--green)}.wrong small,.fixed small{display:block;color:var(--muted);margin-bottom:6px}.wrong p,.fixed p{margin:6px 0;font-size:13px;line-height:1.6}.tools{display:flex;gap:8px}.tools button{border:1px solid var(--line);padding:9px 12px;font-size:12px}.tools button.on{border-color:var(--orange);color:var(--orange)}.quality{border-left:1px solid var(--line);padding-left:24px}.quality p{padding-bottom:16px;border-bottom:1px solid var(--line);font-size:13px}.quality b{display:block;margin-top:7px}.query-steps{height:80px;display:grid;grid-template-columns:repeat(6,1fr);align-items:center;position:relative}.query-steps:before{content:"";height:1px;background:var(--line);position:absolute;left:6%;right:6%;top:40px}.query-step{z-index:1;text-align:center;color:var(--muted);font-size:12px}.query-step i{display:block;width:28px;height:28px;line-height:28px;margin:0 auto 6px;background:var(--paper);border:1px solid var(--line);border-radius:50%;font-style:normal}.query-step.on{color:var(--orange);font-weight:700}.query-step.on i{background:var(--orange);color:white;border-color:var(--orange)}.query-body{display:grid;grid-template-columns:1fr 1fr;gap:50px;padding:24px;border-top:1px solid var(--line);min-height:240px}.query-body article+article{border-left:1px solid var(--line);padding-left:50px}.query-body h3{font:500 28px Georgia,"Songti SC",serif}.query-body dl{display:flex;gap:30px}.query-body dt{font-size:11px;color:var(--muted)}.query-body dd{margin:5px 0}.play{display:grid;grid-template-columns:auto 1fr;gap:24px;padding:20px 24px;border-top:1px solid var(--line)}.growth{display:grid;grid-template-columns:1fr 70px 1.4fr 70px 1fr;align-items:center;gap:16px;border-top:1px solid var(--line);padding:26px;text-align:center}.growth span{display:flex;flex-direction:column;gap:8px}.growth small{color:var(--muted)}.growth b{font:500 25px Georgia,"Songti SC",serif;color:var(--orange)}.growth i{height:1px;background:var(--ink)}
@media(max-width:1000px){.nav nav{gap:16px}.section{grid-template-columns:1fr;min-height:auto}.copy{max-width:680px}.demo{min-height:680px}.phone{width:330px}.ui-lab{grid-template-columns:140px 280px 1fr}.rag-lab{grid-template-columns:150px 1fr}.quality{grid-column:1/-1;border-left:0;border-top:1px solid var(--line);display:flex;gap:28px;padding:18px 0 0}.quality p{flex:1}.query-body{gap:24px}}
@media(max-width:700px){.nav{height:64px;padding:0 20px}.brand{font-size:28px}.nav nav a:not(.on){display:none}.section{padding:56px 20px;gap:40px}.copy h1{font-size:48px}.copy h2{font-size:39px}.demo{min-height:610px;justify-content:flex-start}.demo:before{width:430px;height:430px}.phone{width:min(310px,80vw);border-radius:42px}.screen{border-radius:34px}.status{position:absolute;right:0}.demo .secondary{right:auto;left:0}.ui-lab{grid-template-columns:1fr}.rail{flex-direction:row;overflow:auto;border-right:0;border-bottom:1px solid var(--line)}.rail button{white-space:nowrap}.lab-phone{margin:auto}.judgments{grid-template-columns:repeat(3,1fr);gap:10px}.judgments b{font-size:15px}.judgments p{font-size:12px}.rag-lab{grid-template-columns:1fr}.art{border-right:0;border-bottom:1px solid var(--line);padding:0 0 18px}.art img{max-height:230px}.diag{padding:24px 0}.quality{display:block}.query-body{grid-template-columns:1fr;padding:18px}.query-body article+article{border-left:0;border-top:1px solid var(--line);padding:20px 0 0}.query-body dl{gap:12px}.play{grid-template-columns:1fr}.growth{grid-template-columns:1fr}.growth i{width:1px;height:30px;margin:auto}.tabs{overflow:auto}.tabs button{min-width:110px}}
.query-step{cursor:pointer}.query-step:hover,.query-step:focus-visible{color:var(--orange)}
.rag-story{grid-template-columns:minmax(300px,.66fr) minmax(720px,1.7fr)}.rag-builder{min-width:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding-top:20px}.source-spectrum{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:18px;padding:0 14px 18px;font-family:Georgia,"Songti SC",serif}.source-spectrum span:last-child{color:var(--muted)}.source-spectrum b{color:var(--orange)}.source-spectrum i{height:1px;background:linear-gradient(90deg,var(--orange),var(--line))}.rag-stage{transition:opacity .35s ease,transform .35s ease}.rag-builder[data-stage=build] .diagnose-stage,.rag-builder[data-stage=diagnose] .build-stage{display:none}.poi-profile{display:grid;grid-template-columns:minmax(240px,.78fr) 1.35fr;border:1px solid var(--line);background:rgba(255,255,255,.18)}.poi-identity{padding:25px;border-right:1px solid var(--line)}.poi-identity h3{font:500 38px Georgia,"Songti SC",serif;margin:0 0 6px}.poi-identity span,.poi-identity p{font-size:12px;color:var(--muted);line-height:1.7}.poi-identity img{width:100%;height:170px;object-fit:cover;mix-blend-mode:multiply;margin:14px 0}.field-stack{padding:16px;display:grid;gap:8px}.field-row{border:1px solid var(--line);background:transparent;padding:13px 15px;text-align:left;display:grid;grid-template-columns:130px 1fr;align-items:center;gap:16px;cursor:pointer;color:var(--ink);transition:.2s}.field-row span{font-size:12px;color:var(--muted)}.field-row:hover,.field-row:focus-visible,.field-row.on{border-color:var(--orange);color:var(--orange);transform:translateX(3px)}.design-evidence{margin-top:16px;border:1px solid var(--line);display:grid;grid-template-columns:.7fr 1fr 1.05fr .8fr;align-items:stretch}.design-evidence>div{padding:16px;border-right:1px solid var(--line)}.design-evidence>div:last-child{border-right:0}.design-evidence small{display:block;color:var(--muted);font-size:10px;margin-bottom:9px}.evidence-tabs{display:flex;gap:10px}.evidence-tabs button{border:0;border-bottom:1px solid var(--line);background:none;padding:5px 0;cursor:pointer;color:var(--muted)}.evidence-tabs button.on{color:var(--orange);border-color:var(--orange)}.persona b,.field-reason b{font-size:12px}.sim-query p,.field-reason p{font:500 15px Georgia,"Songti SC",serif;line-height:1.5;margin:0}.field-reason{position:relative}.field-reason:before{content:"";position:absolute;top:50%;left:-9px;width:16px;height:1px;background:var(--orange)}.stage-switch{display:grid;grid-template-columns:1fr 1fr;margin-top:24px}.stage-switch button{border:0;border-top:1px solid var(--line);background:none;padding:18px;text-align:left;color:var(--muted);cursor:pointer;font:500 16px Georgia,"Songti SC",serif}.stage-switch button i{display:inline-grid;place-items:center;width:26px;height:26px;border:1px solid currentColor;border-radius:50%;font-style:normal;margin-right:10px}.stage-switch button.on{color:var(--orange);border-top:2px solid var(--orange)}.diagnosis-head{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}.diagnosis-head .tabs{border:0;margin:0}.diagnosis-grid{display:grid;grid-template-columns:170px 1fr 180px;padding:22px 0}.diagnosis-grid .quality{padding-right:12px}
@media(max-width:1000px){.rag-story{grid-template-columns:1fr}.rag-builder{width:100%}}@media(max-width:700px){.source-spectrum{grid-template-columns:1fr}.source-spectrum i{display:none}.poi-profile{grid-template-columns:1fr}.poi-identity{border-right:0;border-bottom:1px solid var(--line)}.field-row{grid-template-columns:1fr;gap:4px}.design-evidence{grid-template-columns:1fr 1fr}.design-evidence>div:nth-child(2){border-right:0}.design-evidence>div:nth-child(-n+2){border-bottom:1px solid var(--line)}.diagnosis-head{align-items:flex-end}.diagnosis-head .secondary{margin:0 0 12px}.diagnosis-grid{grid-template-columns:1fr}.diagnosis-grid .quality{display:block;border-top:1px solid var(--line);padding-top:16px}.stage-switch button{font-size:14px}}

/* Palace local interaction demo */
.palace-demo{gap:32px;align-items:center}.palace-demo:before{width:610px;height:610px;border-color:rgba(28,151,139,.2);background:radial-gradient(circle,rgba(28,151,139,.08),transparent 67%)}.palace-phone{width:min(402px,34vw);background:#111820;padding:9px;border-radius:50px}.palace-screen{border-radius:42px;background:#e7eee9;color:#172625;font-family:"PingFang SC","Noto Sans CJK SC",Arial,sans-serif;overflow:clip}.map-canvas{position:absolute;inset:0 0 0;background:#e7eee9;overflow:hidden}.map-canvas:before{content:"";position:absolute;inset:0;background:linear-gradient(72deg,transparent 0 18%,rgba(255,255,255,.72) 18.2% 20.2%,transparent 20.4% 67%,rgba(255,255,255,.7) 67.2% 69.3%,transparent 69.5%),linear-gradient(167deg,transparent 0 45%,rgba(202,218,207,.75) 45.2% 57%,transparent 57.2%)}.map-canvas:after{content:"";position:absolute;left:50%;top:21%;width:37%;height:58%;transform:translateX(-50%);background:#dde2d3;border:1px solid rgba(126,106,77,.2)}.map-road{position:absolute;top:-6%;width:18px;height:112%;background:rgba(255,255,255,.78);transform:rotate(4deg);box-shadow:inset 1px 0 rgba(108,135,127,.18),inset -1px 0 rgba(108,135,127,.18)}.road-west{left:11%}.road-east{right:9%;transform:rotate(-5deg)}.map-axis{position:absolute;z-index:1;top:21%;bottom:18%;left:50%;width:8px;transform:translateX(-50%);background:rgba(197,103,63,.16);border-left:1px dashed rgba(166,86,57,.32)}.palace-block{position:absolute;z-index:2;left:50%;width:25%;transform:translateX(-50%);text-align:center;font-size:10px;color:#6b4e3d;font-weight:650}.palace-block i{display:block;height:15px;margin:auto;background:#b9604d;border-top:4px solid #7b6a4d;box-shadow:0 2px 0 rgba(116,72,53,.18)}.palace-block span{display:inline-block;margin-top:3px;padding:1px 4px;background:rgba(231,238,233,.82)}.wumen{top:66%;width:31%}.taihemen{top:55%}.taihedian{top:43%;width:29%}.qianqinggong{top:32%;width:23%}.garden{top:24%;width:19%}.garden i{background:#789468;border-top-color:#607955}.map-label{position:absolute;z-index:2;font-size:9px;color:#55716a;background:rgba(231,238,233,.72);padding:2px 4px}.label-west{left:19%;top:54%}.label-east{right:17%;top:47%}.label-moat{right:2%;top:29%;transform:rotate(84deg);color:#3d777e}.route-line{position:absolute;z-index:3;left:49%;top:58%;height:25%;width:12px;border-left:4px solid #20b3a7;border-radius:8px;filter:drop-shadow(0 1px 1px rgba(0,0,0,.14))}.route-line:before{content:"";position:absolute;left:-7px;top:-5px;width:10px;height:10px;border-radius:50%;background:#fff;border:2px solid #20b3a7}.route-line i{position:absolute;left:-4px;width:4px;height:4px;border-radius:50%;background:#fff}.route-line i:nth-child(1){top:23%}.route-line i:nth-child(2){top:51%}.route-line i:nth-child(3){top:78%}.location-dot{position:absolute;z-index:4;left:48.5%;top:76%;width:17px;height:17px;border-radius:50%;background:#fff;box-shadow:0 0 0 1px rgba(21,89,84,.16)}.location-dot:before{content:"";position:absolute;inset:4px;border-radius:50%;background:#13a99e}.location-dot i{position:absolute;inset:-9px;border-radius:50%;border:1px solid rgba(19,169,158,.4);animation:locationPulse 2.2s ease-out infinite}.map-nav{position:absolute;z-index:6;top:14px;left:12px;right:12px;min-height:62px;display:grid;grid-template-columns:34px 1fr 34px;align-items:center;padding:8px;background:rgba(255,255,255,.96);border-radius:14px;box-shadow:0 5px 8px rgba(37,70,66,.12)}.map-nav button,.map-controls button,.question-list button,.sheet-handle,.map-actions button{font:inherit}.map-nav button{border:0;background:none;color:#27413e;cursor:pointer}.map-back{font-size:28px;line-height:1}.map-more{font-size:13px;letter-spacing:1px}.map-nav b,.map-nav span{display:block}.map-nav b{font-size:13px}.map-nav span{font-size:10px;color:#5f7772;margin-top:3px}.map-controls{position:absolute;z-index:5;right:12px;top:91px;display:flex;flex-direction:column;background:#fff;border-radius:12px;box-shadow:0 4px 8px rgba(37,70,66,.12);overflow:hidden}.map-controls button{width:34px;height:34px;border:0;border-bottom:1px solid #e6ece9;background:#fff;color:#3f5c57;cursor:pointer}.map-controls button:last-child{border-bottom:0}.ask-panel{position:absolute;z-index:7;left:10px;right:10px;bottom:71px;padding:14px;background:#fff;border-radius:16px;box-shadow:0 6px 8px rgba(37,70,66,.15);transition:opacity .25s ease,transform .35s cubic-bezier(.22,1,.36,1)}.ask-heading{display:flex;gap:10px;align-items:center;margin-bottom:10px}.amap-orb{flex:0 0 auto;display:inline-grid;width:28px;height:28px;border-radius:50%;background:conic-gradient(from 210deg,#17b7aa,#2d8cff,#8b64e9,#17b7aa);box-shadow:inset 0 0 0 6px rgba(255,255,255,.72)}.ask-heading b,.ask-heading small{display:block}.ask-heading b{font-size:14px}.ask-heading small{font-size:10px;color:#68807b;margin-top:2px}.question-list{display:grid;gap:6px}.question-list button{display:flex;align-items:center;gap:8px;width:100%;padding:8px 9px;border:0;background:#f1f7f5;border-radius:9px;color:#23423d;text-align:left;font-size:11px;line-height:1.35;cursor:pointer;transition:background .18s ease,transform .18s ease}.question-list button:hover,.question-list button:focus-visible,.question-list button.selected{background:#dff2ee;transform:translateX(2px)}.question-list button:disabled{cursor:wait;opacity:.58}.question-list span{display:grid;place-items:center;flex:0 0 22px;width:22px;height:22px;border-radius:50%;background:#fff;color:#168d84;font-size:10px;font-weight:700}.ai-progress{position:absolute;z-index:8;left:20px;right:20px;bottom:126px;display:flex;align-items:center;gap:10px;padding:14px;background:#fff;border-radius:14px;box-shadow:0 6px 8px rgba(37,70,66,.15);opacity:0;transform:translateY(12px);pointer-events:none;transition:opacity .2s ease,transform .35s cubic-bezier(.22,1,.36,1)}.ai-progress div{min-width:0;margin-right:auto}.ai-progress b,.ai-progress small{display:block}.ai-progress b{font-size:13px}.ai-progress small{font-size:10px;color:#68807b;margin-top:3px}.ai-progress>i{width:5px;height:5px;border-radius:50%;background:#1aa59a;animation:thinkingDot .9s ease-in-out infinite}.ai-progress>i:nth-last-child(2){animation-delay:.12s}.ai-progress>i:last-child{animation-delay:.24s}.palace-demo[data-state=understanding] .ask-panel,.palace-demo[data-state=generating] .ask-panel{opacity:.28;transform:translateY(6px);pointer-events:none}.palace-demo[data-state=understanding] .ai-progress,.palace-demo[data-state=generating] .ai-progress{opacity:1;transform:translateY(0)}.answer-sheet{position:absolute;z-index:10;top:86px;left:0;right:0;bottom:68px;padding:0 16px 18px;background:#fff;border-radius:16px 16px 0 0;box-shadow:0 -6px 8px rgba(32,58,54,.15);transform:translateY(calc(100% - 220px));opacity:0;pointer-events:none;transition:transform .48s cubic-bezier(.22,1,.36,1),opacity .2s ease;overflow:hidden}.palace-demo[data-state=answered] .answer-sheet{opacity:1;pointer-events:auto}.answer-sheet.expanded{transform:translateY(0);overflow-y:auto}.sheet-handle{position:sticky;z-index:2;top:0;display:block;width:100%;height:28px;padding:0;border:0;background:#fff;cursor:ns-resize;touch-action:none}.sheet-handle i{display:block;width:42px;height:4px;margin:auto;border-radius:4px;background:#c7d1ce}.sheet-summary{display:flex;gap:10px;align-items:flex-start}.sheet-summary .amap-orb{width:26px;height:26px}.sheet-summary>div{min-width:0}.sheet-summary small{display:block;color:#66807a;font-size:9px}.sheet-summary h3{font-size:15px;line-height:1.35;margin:4px 0 5px}.sheet-summary p{font-size:11px;line-height:1.55;margin:0;color:#354e49}.sheet-detail{margin:18px 0 0 36px;padding-top:14px;border-top:1px solid #e4ebe8;opacity:0;transform:translateY(8px);transition:opacity .22s ease .1s,transform .35s ease .1s}.answer-sheet.expanded .sheet-detail{opacity:1;transform:translateY(0)}.sheet-detail h4{font-size:13px;margin:0 0 10px}.sheet-detail p,.sheet-detail li{font-size:11px;line-height:1.7;color:#405954}.sheet-detail p{margin:8px 0}.sheet-detail ul{padding-left:17px;margin:0}.sheet-detail li+li{margin-top:7px}.answer-disclaimer{margin:14px 0 0 36px;padding-top:12px;border-top:1px solid #e4ebe8;color:#6a7f7b;font-size:9px;line-height:1.55;opacity:0}.answer-sheet.expanded .answer-disclaimer{opacity:1}.map-actions{position:absolute;z-index:11;left:0;right:0;bottom:0;height:68px;display:grid;grid-template-columns:1fr 1.25fr 1fr;background:#fff;border-top:1px solid #e3ebe8}.map-actions button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;border:0;background:#fff;color:#536b66;font-size:9px;cursor:pointer}.map-actions i{font-style:normal;font-size:18px;line-height:1}.map-actions .action-main{color:#0d988e;font-weight:700}.map-actions .action-main i{display:grid;place-items:center;width:34px;height:28px;border-radius:18px;background:#dff4f0}.demo-guide{display:flex;flex-direction:column;gap:13px;max-width:180px;color:var(--muted);font-size:12px;line-height:1.55}.demo-guide b{font:500 19px Georgia,"Songti SC",serif;color:var(--ink)}.demo-guide span{position:relative;padding-left:17px}.demo-guide span:before{content:"";position:absolute;left:0;top:.55em;width:6px;height:6px;border-radius:50%;background:#19a89e}.palace-demo .secondary{position:static;align-self:flex-start;margin-top:5px}.palace-screen button:focus-visible{outline:2px solid #0c827a;outline-offset:2px}@keyframes thinkingDot{0%,100%{transform:translateY(0);opacity:.45}50%{transform:translateY(-4px);opacity:1}}@keyframes locationPulse{0%{transform:scale(.7);opacity:.85}75%,100%{transform:scale(1.45);opacity:0}}
@media(max-width:1000px){.palace-demo{justify-content:center}.palace-phone{width:380px}.demo-guide{max-width:170px}}
@media(max-width:700px){.palace-demo{min-height:720px;justify-content:center;align-items:flex-start;gap:18px;flex-direction:column}.palace-demo:before{width:460px;height:460px;top:70px}.palace-phone{width:min(350px,88vw);align-self:center}.demo-guide{max-width:none;width:min(350px,88vw);align-self:center;display:grid;grid-template-columns:1fr auto;gap:7px 16px}.demo-guide b{grid-column:1/-1}.demo-guide span{grid-column:1}.demo-guide .secondary{grid-column:2;grid-row:2/4;align-self:center;margin:0}.ask-panel{padding:12px}.question-list button{font-size:10px}.answer-sheet{top:78px}}
@media(prefers-reduced-motion:reduce){.location-dot i,.ai-progress>i{animation:none}.ask-panel,.ai-progress,.answer-sheet,.sheet-detail,.question-list button{transition-duration:.01ms!important}.html{scroll-behavior:auto}}
.answer-sheet:not(.expanded){transform:translateY(calc(100% - 170px))}
.palace-demo[data-state=answered] .ask-panel{opacity:0;transform:translateY(8px);pointer-events:none}
.palace-screen{overflow:hidden}

/* Online-reference Palace demo */
.online-demo{gap:30px}.online-screen{background:#eef3f5;isolation:isolate}.leaflet-stage{position:absolute;inset:0;z-index:1;background:#eef3f5}.leaflet-container{font-family:"PingFang SC","Noto Sans CJK SC",Arial,sans-serif;cursor:grab}.leaflet-container:active{cursor:grabbing}.leaflet-control-attribution{display:none}.leaflet-pane svg{overflow:visible}.map-text-label{background:transparent;border:0;white-space:nowrap;pointer-events:none}.map-text-label span{display:inline-flex;align-items:center;gap:3px;padding:2px 5px 2px 3px;border-radius:7px;background:rgba(250,252,252,.7);box-shadow:0 1px 2px rgba(80,88,87,.04);color:#8b7f79;font-size:9px;line-height:16px}.map-text-label i{display:grid;place-items:center;width:15px;height:15px;border-radius:50%;background:#c9bdb6;color:#fff;font:700 7px/1 "PingFang SC",sans-serif;font-style:normal}.map-text-label b{font-weight:560}.palace-map-label span,.gate-map-label span{color:#887b75}.palace-map-label b,.gate-map-label b{font-weight:650}.park-map-label span{color:#5b9f51;background:rgba(233,251,226,.8)}.park-map-label i{background:#8dd17a;font-size:8px}.museum-map-label span{color:#837f75}.museum-map-label i{background:#b8aea6}.secondary-map-label span{color:#9b918d;background:rgba(250,252,252,.54);font-size:8px}.secondary-map-label i{width:13px;height:13px;background:#d1c7c1;font-size:6px}.road-map-label span{color:#7c9aaa;background:transparent}.demo-poi-shell{background:transparent;border:0}.demo-poi{display:block;position:relative;width:148px;height:48px;color:#19201f;font-size:10px;filter:drop-shadow(0 3px 3px rgba(54,70,71,.18))}.demo-poi:after{content:"";position:absolute;left:17px;top:34px;width:10px;height:10px;background:#fff;transform:rotate(45deg)}.demo-poi i{position:absolute;z-index:2;left:0;top:0;display:grid;place-items:center;width:42px;height:42px;border:3px solid #fff;border-radius:50%;background:#4b8581;color:#fff;font-style:normal;font-weight:800}.demo-poi b{position:absolute;z-index:1;left:34px;top:7px;max-width:112px;padding:6px 9px 6px 11px;border-radius:0 8px 8px 0;background:rgba(255,255,255,.95);white-space:normal;line-height:1.25}.demo-poi.photo i{background:#a66f65}.demo-poi.story i{background:#8d6f52}.demo-poi.tea i{background:#5d8564}.map-brand{position:absolute;z-index:4;left:14px;bottom:328px;display:flex;align-items:center;gap:5px;padding:4px 7px;border-radius:7px;background:rgba(255,255,255,.78);color:#62777a;font-size:9px;pointer-events:none}.map-brand i{width:9px;height:9px;border-radius:2px;background:linear-gradient(135deg,#36b8ff 0 45%,#44cf8a 46% 100%);transform:rotate(-18deg)}.online-controls{position:absolute;z-index:8;right:13px;top:18px;display:flex;flex-direction:column;gap:10px}.online-controls button,.online-locate{display:grid;place-items:center;width:48px;height:48px;border:0;border-radius:50%;background:rgba(255,255,255,.95);color:#111;font:700 17px Arial,sans-serif;box-shadow:0 4px 8px rgba(47,67,69,.14);cursor:pointer}.online-controls button:nth-child(2){font-size:24px}.online-controls button:nth-child(2) span{transform:rotate(180deg)}.online-controls button.muted{color:#8f9b9d}.online-controls button.muted:after{content:"/";position:absolute;font-size:26px;font-weight:400}.online-locate{position:absolute;z-index:8;right:14px;bottom:338px;font-size:25px}.question-tray{position:absolute;z-index:9;left:9px;right:9px;bottom:77px;padding:14px;background:rgba(255,255,255,.97);border-radius:15px 15px 8px 8px;box-shadow:0 -4px 8px rgba(46,64,65,.12);transition:opacity .24s ease,transform .38s cubic-bezier(.22,1,.36,1)}.question-tray>div:first-child{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:10px}.question-tray b{font-size:14px}.question-tray small{font-size:9px;color:#778486}.online-questions{display:flex;flex-direction:column;gap:6px}.online-questions button{width:100%;padding:8px 10px;border:0;border-radius:9px;background:#f2f5f6;color:#263130;text-align:left;font:500 10px/1.35 "PingFang SC","Noto Sans CJK SC",Arial,sans-serif;cursor:pointer;transition:background .18s ease,transform .18s ease}.online-questions button:before{content:"↪";margin-right:6px;color:#4d6b69}.online-questions button:hover,.online-questions button:focus-visible,.online-questions button.selected{background:#e4f1ef;transform:translateX(2px)}.online-questions button:disabled{opacity:.55;cursor:wait}.online-progress{position:absolute;z-index:11;left:18px;right:18px;bottom:146px;display:flex;align-items:center;gap:10px;padding:14px 15px;border-radius:14px;background:rgba(255,255,255,.97);box-shadow:0 5px 8px rgba(47,67,69,.14);opacity:0;transform:translateY(10px);pointer-events:none;transition:opacity .2s ease,transform .32s cubic-bezier(.22,1,.36,1)}.online-progress>span{flex:0 0 26px;width:26px;height:26px;border-radius:50%;background:conic-gradient(from 190deg,#14b9ac,#2d8cff,#9f6fe2,#14b9ac);box-shadow:inset 0 0 0 6px rgba(255,255,255,.72)}.online-progress div{min-width:0;margin-right:auto}.online-progress b,.online-progress small{display:block}.online-progress b{font-size:12px}.online-progress small{margin-top:3px;color:#758486;font-size:9px}.online-progress>i{width:4px;height:4px;border-radius:50%;background:#159d94;animation:thinkingDot .85s ease-in-out infinite}.online-progress>i:nth-last-child(2){animation-delay:.12s}.online-progress>i:last-child{animation-delay:.24s}.online-demo[data-state=understanding] .online-progress,.online-demo[data-state=generating] .online-progress{opacity:1;transform:translateY(0)}.online-demo[data-state=understanding] .question-tray,.online-demo[data-state=generating] .question-tray,.online-demo[data-state=answered] .question-tray{opacity:0;transform:translateY(12px);pointer-events:none}.live-answer-sheet{position:absolute;z-index:12;top:185px;left:0;right:0;bottom:76px;padding:0 17px 20px;background:rgba(248,250,251,.98);border-radius:16px 16px 0 0;box-shadow:0 -5px 8px rgba(42,59,60,.12);opacity:0;transform:translateY(calc(100% - 192px));pointer-events:none;overflow:hidden;transition:opacity .22s ease,transform .5s cubic-bezier(.22,1,.36,1)}.online-demo[data-state=answered] .live-answer-sheet{opacity:1;pointer-events:auto}.live-answer-sheet.expanded{transform:translateY(0);overflow-y:auto}.live-sheet-handle{position:sticky;z-index:3;top:0;display:block;width:100%;height:27px;padding:0;border:0;background:linear-gradient(#f8fafb 70%,transparent);cursor:ns-resize;touch-action:none}.live-sheet-handle i{display:block;width:44px;height:4px;margin:auto;border-radius:4px;background:#8e9695}.live-sheet-close{position:absolute;z-index:4;right:12px;top:19px;width:30px;height:30px;border:0;background:transparent;color:#606968;font:300 28px/1 Arial,sans-serif;cursor:pointer;opacity:0;pointer-events:none}.live-answer-sheet.expanded .live-sheet-close{opacity:1;pointer-events:auto}.user-query{width:max-content;max-width:84%;margin:4px 24px 16px auto;padding:10px 12px;border-radius:12px 12px 2px 12px;background:#fff;border:1px solid #e5e9e9;font-size:11px;line-height:1.45;display:none}.live-answer-sheet.expanded .user-query{display:block}.answer-copy{padding-bottom:10px}.answer-lead{margin:0;font-size:12px;line-height:1.72;color:#1f2524;text-wrap:pretty}.answer-lead strong,.answer-detail strong{font-weight:750}.answer-detail{margin-top:18px;padding-top:15px;border-top:1px solid #e5e9e9;opacity:0;transform:translateY(8px);transition:opacity .2s ease .1s,transform .32s ease .1s}.live-answer-sheet.expanded .answer-detail{opacity:1;transform:translateY(0)}.answer-detail h3{margin:15px 0 7px;font-size:14px}.answer-detail p{margin:8px 0;font-size:11px;line-height:1.7;color:#242b2a}.answer-fact{padding:6px 9px;border-radius:7px;background:#f1f4f4}.place-list{display:grid;gap:9px;margin:13px 0}.place-list article{display:grid;grid-template-columns:54px 1fr auto;gap:10px;align-items:center;padding:9px;background:#fff;border-radius:12px}.place-thumb{display:grid;place-items:center;width:54px;height:54px;border-radius:8px;background:linear-gradient(145deg,#95cae6,#e8b77b);color:#fff;font-style:normal;font-weight:800;font-size:18px}.rest-b{background:linear-gradient(145deg,#b68757,#5d4436)}.rest-c{background:linear-gradient(145deg,#6ba578,#d8b07a)}.photo-a{background:linear-gradient(145deg,#8f4e43,#d5a06f)}.photo-b{background:linear-gradient(145deg,#bf755f,#5c716d)}.photo-c{background:linear-gradient(145deg,#9d5d51,#d3b285)}.place-list b,.place-list span,.place-list small{display:block}.place-list b{font-size:11px}.place-list span{margin-top:3px;color:#6e7978;font-size:9px}.place-list small{margin-top:4px;color:#2877d5;font-size:9px}.place-list button{border:0;border-radius:7px;background:#edf5ff;color:#2877d5;padding:8px 10px;font:650 10px inherit}.answer-disclaimer{margin:15px 0;color:#929a99;font-size:9px;line-height:1.5;opacity:0}.live-answer-sheet.expanded .answer-disclaimer{opacity:1}.followups{display:none;gap:7px;margin-bottom:10px}.live-answer-sheet.expanded .followups{display:grid}.followups button{justify-self:start;border:0;border-radius:16px;background:#edf1f1;color:#24302f;padding:7px 10px;font:500 10px inherit;cursor:pointer}.voice-dock{position:absolute;z-index:15;left:9px;right:9px;bottom:8px;height:60px;display:grid;grid-template-columns:58px 58px 1fr;gap:7px}.voice-dock button{border:0;background:#fff;color:#111;box-shadow:0 4px 8px rgba(44,57,59,.12);cursor:pointer}.dock-cancel,.dock-camera{border-radius:50%}.dock-cancel{color:#ff4a46!important;font:300 39px/1 Arial,sans-serif}.dock-camera{position:relative;font:700 23px/1 Arial,sans-serif}.dock-camera i{position:absolute;right:10px;top:9px;font-style:normal;font-size:10px}.dock-talk{display:flex;align-items:center;justify-content:center;gap:12px;border-radius:32px!important;font:700 15px "PingFang SC","Noto Sans CJK SC",Arial,sans-serif}.dock-talk i{width:26px;height:26px;border-radius:50%;background:#000;box-shadow:inset 0 0 0 8px #000}.dock-talk:active i{box-shadow:inset 0 0 0 8px #000,0 0 0 7px rgba(0,0,0,.09);transform:scale(.92)}.demo-toast{position:absolute;z-index:20;left:50%;bottom:88px;width:max-content;max-width:82%;padding:8px 11px;border-radius:18px;background:rgba(28,32,32,.86);color:#fff;font-size:9px;opacity:0;transform:translate(-50%,8px);pointer-events:none;transition:.22s}.demo-toast.show{opacity:1;transform:translate(-50%,0)}.online-demo .demo-guide{max-width:200px}.online-demo .demo-guide span:before{background:#159d94}.online-demo .secondary{position:static}.online-screen button:focus-visible{outline:2px solid #0b9187;outline-offset:2px}
@media(max-width:1000px){.online-demo .demo-guide{max-width:190px}}
@media(max-width:700px){.online-demo{min-height:790px}.online-demo .palace-phone{width:min(360px,90vw)}.online-demo .demo-guide{width:min(360px,90vw);max-width:none}.live-answer-sheet{top:165px}.question-tray{padding:12px}.online-questions button{font-size:10px}.voice-dock{grid-template-columns:54px 54px 1fr;height:56px}.map-brand{bottom:310px}.online-locate{bottom:318px}}
@media(min-width:901px) and (max-height:800px){
  .nav{height:64px}
  .hero.section{min-height:calc(100vh - 64px);padding-top:20px;padding-bottom:20px}
  .hero .copy h1{font-size:54px;margin:16px 0}
  .hero .lead{font-size:15px;line-height:1.65}
  .hero .copy dl{margin:18px 0;padding-top:12px}
  .hero .note{margin-top:10px}
  .hero .online-demo{min-height:0}
  .hero .online-demo .palace-phone{width:min(330px,29vw,calc((100vh - 100px)*9/18.5))}
  .hero .online-demo .demo-guide{font-size:12px}
}
@media(prefers-reduced-motion:reduce){.online-progress>i{animation:none}.leaflet-zoom-animated,.leaflet-fade-anim .leaflet-popup,.live-answer-sheet,.online-progress,.question-tray{transition-duration:.01ms!important}}
.online-screen .map-brand{bottom:210px}
@media(max-width:700px){.online-screen .map-brand{bottom:198px}}
.amap-guide-video{position:absolute;z-index:40;inset:0;display:grid;place-items:center;overflow:hidden;background:#050606;color:#fff}
.amap-guide-video[hidden]{display:none}
.amap-guide-video video{display:block;width:100%;height:100%;object-fit:contain;background:#050606}
.amap-guide-video button{position:absolute;z-index:2;top:12px;right:12px;display:grid;width:38px;height:38px;place-items:center;border:1px solid rgba(255,255,255,.5);border-radius:50%;background:rgba(12,14,14,.58);color:#fff;font:400 22px/1 Arial,sans-serif;backdrop-filter:blur(10px);cursor:pointer}
.amap-guide-video button:focus-visible{outline:2px solid #fff;outline-offset:3px}
.amap-guide-video p{position:absolute;z-index:2;right:16px;bottom:18px;left:16px;margin:0;padding:8px 11px;border-radius:10px;background:rgba(8,10,10,.62);font-size:10px;line-height:1.5;text-align:center;backdrop-filter:blur(10px)}
.place-list button{font-family:inherit;font-size:10px;font-weight:650}.followups button{font-family:inherit;font-size:10px;font-weight:500}.live-answer-sheet:not(.expanded){transform:translateY(calc(100% - 175px))}
.live-sheet-handle:focus-visible{outline:none}.live-sheet-handle:focus-visible i{background:#159d94}.online-controls #mapSound span{position:relative;width:10px;height:14px;border-radius:2px;background:#111;font-size:0;transform:none}.online-controls #mapSound span:before{content:"";position:absolute;left:-6px;top:3px;border-width:4px 6px 4px 0;border-style:solid;border-color:transparent #111 transparent transparent}.online-controls #mapSound span:after{content:"))";position:absolute;left:8px;top:-3px;font:700 12px/1 Arial,sans-serif;letter-spacing:-3px}.dock-camera span{position:relative;display:block;width:25px;height:19px;border:2px solid #111;border-radius:6px;font-size:0}.dock-camera span:before{content:"";position:absolute;left:7px;top:4px;width:7px;height:7px;border:2px solid #111;border-radius:50%}.dock-camera span:after{content:"";position:absolute;left:5px;top:-6px;width:10px;height:5px;border-radius:3px 3px 0 0;background:#111}.dock-talk i{position:relative}.dock-talk:active i:after{content:"";position:absolute;inset:9px;border-radius:3px;background:#fff}
.map-statusbar{position:absolute;z-index:7;left:0;right:0;top:0;height:46px;display:flex;align-items:center;justify-content:space-between;padding:0 18px 4px;color:#101918;font:800 11px/1 system-ui,sans-serif;letter-spacing:-.02em;background:linear-gradient(180deg,rgba(244,251,247,.92),rgba(244,251,247,.58) 72%,transparent);text-shadow:0 1px 0 rgba(255,255,255,.75);pointer-events:none}.map-statusbar::before{content:"14:00   ◉  ◆"}.map-statusbar::after{content:"5G  ▮▮▮  21%";letter-spacing:.02em}.online-screen .leaflet-image-layer{clip-path:none}.online-controls{top:58px}

/* Amap AI motion and polish */
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