@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;600;700;800&display=swap');
:root{--accent:#bdb4ff;--accent-rgb:189,180,255;--soft:#737bff;--ink:#eaeaf7;--muted:#9293b0;--bg:#050613}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:25px}body{margin:0;color:var(--ink);background:var(--bg);font:14px 'Noto Sans SC','Microsoft YaHei',sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;touch-action:manipulation}a{color:inherit;text-decoration:none}a,button{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:5px}svg{width:22px;height:22px;stroke:currentColor;stroke-width:1.5;fill:none;stroke-linecap:round;stroke-linejoin:round}.defs{width:0;height:0;position:absolute}.shell{width:calc(100% - 112px);max-width:1440px;margin:auto}.universe{position:fixed;inset:0;background:radial-gradient(ellipse at 74% 40%,#241a4a,transparent 60%),#050613}#scene{height:100%;width:100%;display:block;touch-action:pan-y}.vignette{position:fixed;inset:0;pointer-events:none;z-index:1;background:linear-gradient(90deg,#04061399,transparent 65%),linear-gradient(0deg,#040613d9,transparent 40%,transparent 85%,#04061333)}.grain{position:fixed;inset:0;pointer-events:none;z-index:8;opacity:.02;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.95' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}.header{height:92px;position:relative;z-index:4;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #c2c8ff14}.brand{display:flex;gap:13px;align-items:center;letter-spacing:3px;font-size:21px;font-weight:500;line-height:1.4}.brand small{display:block;font-size:7px;letter-spacing:4px;color:#8785a8;margin-top:5px;font-weight:400}.brand-mark{display:flex;align-items:center;justify-content:center;gap:4px;height:39px;color:var(--accent);transition:color .7s}.brand-mark i{width:3px;height:14px;border-radius:3px;background:currentColor;box-shadow:0 0 14px rgba(var(--accent-rgb),.3)}.brand-mark i:nth-child(2){height:27px}.brand-mark i:nth-child(3){height:36px}.brand-mark i:nth-child(4){height:23px}.brand-mark i:nth-child(5){height:10px}.header nav{display:flex;gap:40px;align-items:center;font-size:10px;letter-spacing:1.5px;color:#9191ae}.header nav a,.header nav button{padding:14px 0;font-size:10px}.header nav a{color:#c4c0e7;position:relative}.header nav a:after{content:'';position:absolute;bottom:0;left:50%;width:3px;height:3px;background:var(--accent);border-radius:50%;box-shadow:0 0 9px var(--accent)}.header nav sup{font-size:7px;opacity:.5;margin-left:7px}.header nav button span{margin-left:10px}.header-actions{display:flex;gap:22px;align-items:center}.sound-toggle{border:1px solid #bab9ec2b;border-radius:30px;display:flex;align-items:center;gap:9px;padding:9px 13px;font-size:9px;letter-spacing:1px;color:#babbd7;background:#0b0d2422}.equalizer{height:13px;display:flex;gap:2px;align-items:center;color:var(--accent)}.equalizer i{height:5px;width:2px;background:currentColor;border-radius:2px}.equalizer i:nth-child(2){height:12px}.equalizer i:nth-child(3){height:8px}.equalizer i:nth-child(4){height:6px}.sound-on .equalizer i{animation:equalize 1s ease-in-out infinite alternate}.sound-on .equalizer i:nth-child(2){animation-delay:-.5s}.sound-on .equalizer i:nth-child(3){animation-delay:-.3s}#fullscreen{padding:5px;color:#8b8da9}#fullscreen svg{width:15px;height:15px}main{position:relative;z-index:2;pointer-events:none}main a,main button{pointer-events:auto}.hero{height:calc(100svh - 305px);min-height:455px;max-height:760px;position:relative;display:flex;align-items:center}.hero-copy{padding:20px 0 22px;width:47%;will-change:transform,opacity,filter}.eyebrow{display:flex;align-items:center;gap:9px;font-size:8px;letter-spacing:2.5px;color:var(--accent)}.eyebrow i{width:4px;height:4px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}h1{font-size:clamp(64px,5.9vw,90px);font-weight:600;letter-spacing:6px;line-height:1.08;margin:18px 0 14px;color:#eef0fb;text-shadow:0 4px 70px rgba(var(--accent-rgb),.13)}h1>span{display:block}.title-dot{font-size:.55em;color:var(--accent);margin-left:-.04em}.world-english{font-size:8px;letter-spacing:4px;color:var(--accent);opacity:.75;margin-bottom:15px}.hero-copy h2{font-size:16px;font-weight:400;letter-spacing:2px;margin:0 0 12px;line-height:1.8;color:#d1d3e5}.hero-copy p{font-size:11px;letter-spacing:1px;line-height:2.05;color:#8f93b1;white-space:pre-line;margin:0}.hero-actions{display:flex;align-items:center;gap:23px;margin-top:23px}.primary{display:inline-flex;align-items:center;justify-content:space-between;gap:33px;border:1px solid rgba(var(--accent-rgb),.5);border-radius:3px;padding:15px 20px;background:linear-gradient(115deg,var(--accent),color-mix(in srgb,var(--accent),var(--soft) 45%));color:#13152b;font-size:12px;font-weight:600;letter-spacing:1px;box-shadow:0 0 35px rgba(var(--accent-rgb),.08);transition:box-shadow .3s,transform .3s}.primary:hover{transform:translateY(-3px);box-shadow:0 0 35px rgba(var(--accent-rgb),.25)}.primary svg{width:18px;height:18px}.guide-link{font-size:10px;color:#9b9db9;padding:8px 0;letter-spacing:1px}.guide-link span{margin-left:12px;color:var(--accent)}.hero-meta{display:flex;gap:15px;font-size:8px;color:#747a9c;letter-spacing:1px;margin-top:17px}.hero-meta span+span:before{content:'·';margin-right:15px;color:var(--accent);opacity:.5}.world-counter{position:absolute;right:0;top:30px;display:flex;align-items:center;gap:12px;font-family:Arial,sans-serif}.world-counter>span{font-size:22px;font-weight:300;letter-spacing:2px;color:var(--accent)}.world-counter i{width:28px;height:1px;background:#999dc444}.world-counter small{font-size:9px;color:#696c8e}.scene-annotation{position:absolute;right:0;top:34%;display:flex;align-items:center;gap:11px;max-width:170px}.scene-annotation>span{width:28px;height:1px;background:linear-gradient(90deg,transparent,var(--accent));transform:rotate(-30deg);opacity:.45}.scene-annotation b{font-size:6px;letter-spacing:1.6px;color:var(--accent);font-weight:400}.scene-annotation small{display:block;font-size:5px;letter-spacing:1px;color:#747794;line-height:1.8;margin-top:8px}.orbit-button{position:absolute;right:21%;bottom:28px;font-size:8px;letter-spacing:1px;color:#8b8eae;padding:8px}.orbit-button span{font-size:19px;vertical-align:-2px;margin-right:6px;color:var(--accent)}.world-navigation{position:absolute;right:0;bottom:32px;display:flex;align-items:center;gap:14px}.world-navigation button{width:28px;height:28px;border:1px solid #a2a7d92b;border-radius:50%;font-size:16px;color:#a5aac4;transition:.3s}.world-navigation button:hover{color:var(--accent);border-color:var(--accent);background:rgba(var(--accent-rgb),.08)}.world-navigation>span{font-size:8px;letter-spacing:1.5px;color:#777b9b}.worlds{padding-bottom:22px}.section-caption{display:flex;justify-content:space-between;align-items:center;font-size:9px;letter-spacing:2px;color:#a2a5c3;margin-bottom:15px}.section-caption>span:first-child{display:flex;align-items:center;gap:8px}.section-caption i{width:3px;height:3px;border-radius:50%;background:var(--accent)}.section-caption>span:last-child{font-size:7px;color:#696e94;letter-spacing:2px}.keyboard-hint{margin-left:13px;letter-spacing:7px}.world-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.world-card{position:relative;isolation:isolate;height:116px;overflow:hidden;border:1px solid #b0b7f529;border-radius:5px;text-align:left;background:#0a0f22;padding:0;transition:border-color .4s,transform .4s,box-shadow .4s}.world-card>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.3;filter:saturate(.6);transition:transform .8s,opacity .6s,filter .6s;z-index:-2}.world-card:nth-child(1)>img{object-position:50% 40%}.world-card:nth-child(2)>img{object-position:50% 40%}.card-shade{position:absolute;inset:0;background:linear-gradient(90deg,#060b1cbb,#080c1999 55%,#080c1933);z-index:-1;transition:background .5s}.world-card.selected{border-color:rgba(var(--accent-rgb),.55);box-shadow:0 0 30px rgba(var(--accent-rgb),.07)}.world-card.selected>img{opacity:.6;filter:saturate(.9);transform:scale(1.06)}.world-card:hover{transform:translateY(-3px);border-color:#b9bcdf88}.world-card:hover>img{opacity:.6;filter:saturate(1);transform:scale(1.09)}.card-number{position:absolute;left:20px;top:17px;font-size:7px;letter-spacing:2px;color:#999dbf}.world-card.selected .card-number{color:var(--accent)}.card-title{position:absolute;left:20px;bottom:21px;font-size:18px;letter-spacing:2px;font-weight:500;color:#dfe4f4}.card-title small{display:block;font-size:8px;font-weight:400;letter-spacing:1px;color:#959db6;margin-top:7px}.card-arrow{position:absolute;right:19px;top:50%;transform:translateY(-50%);font-size:20px;color:#858baa}.world-card.selected .card-arrow{color:var(--accent)}.selection-line{position:absolute;bottom:0;left:0;width:0;height:2px;background:linear-gradient(90deg,var(--accent),transparent);transition:width .7s}.world-card.selected .selection-line{width:100%}footer{position:relative;z-index:2;display:flex;justify-content:space-between;align-items:center;border-top:1px solid #9198cd14;padding:18px 0 21px;color:#62698d;font-size:7px;letter-spacing:1px}footer>span:first-child{display:flex;gap:10px;align-items:center}footer i{height:2px;width:2px;border-radius:50%;background:#6d78a6}.footer-center{color:#7b82a2;letter-spacing:3px}.audio-status{display:flex;align-items:center;gap:7px;color:#868dad;font-size:8px;letter-spacing:.7px;padding:0}.status-dot{width:4px;height:4px;border-radius:50%;background:#646d97}.sound-on .status-dot{background:var(--accent);box-shadow:0 0 10px var(--accent)}.status-bars{color:var(--accent);font-size:11px;margin-left:5px}.sound-on .status-bars{animation:equalize 1.4s ease-in-out infinite alternate}.jump-light{position:fixed;inset:0;z-index:3;pointer-events:none;opacity:0;background:radial-gradient(ellipse at 72% 43%,rgba(var(--accent-rgb),.19),transparent 53%);mix-blend-mode:screen}.traveling .jump-light{animation:jump-light 1.6s ease-in-out both}.traveling .world-card.selected{box-shadow:0 0 45px rgba(var(--accent-rgb),.16)}dialog{padding:38px;border:1px solid rgba(var(--accent-rgb),.28);border-radius:12px;background:linear-gradient(130deg,#13152d,#080f1c);color:var(--ink);width:min(510px,calc(100% - 36px));box-shadow:0 30px 100px #0009}dialog::backdrop{background:#040613b3;backdrop-filter:blur(16px)}.close-dialog{position:absolute;right:16px;top:10px;font-size:27px;color:#a0a5c5}dialog h2{font-size:29px;letter-spacing:3px;font-weight:500;margin:22px 0 17px}dialog p{font-size:12px;line-height:2.2;color:#a4abc7;white-space:pre-line}dialog .primary{margin-top:15px;font-size:11px}.dialog-tags{display:flex;gap:12px;color:var(--accent);font-size:10px;margin-bottom:20px}.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,15px);opacity:0;pointer-events:none;transition:.4s;z-index:10;color:#d1d4ee;background:#0d1426e6;border:1px solid #a6aed04d;border-radius:30px;padding:12px 20px;font-size:10px;letter-spacing:.5px}.toast.show{opacity:1;transform:translate(-50%,0)}.sr-only{position:absolute;height:1px;width:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.fallback{position:absolute;inset:0}.fallback-orb{position:absolute;right:12%;top:23%;width:340px;height:340px;border-radius:50%;border:1px solid var(--accent);background:radial-gradient(circle at 30% 27%,rgba(var(--accent-rgb),.45),transparent 65%),radial-gradient(circle at 70% 80%,var(--soft),#0c1026 60%);box-shadow:0 0 100px rgba(var(--accent-rgb),.2)}.fallback-orb:before{content:'';position:absolute;inset:-40px;border:1px solid var(--accent);border-radius:50%;transform:rotateX(60deg) rotateZ(-25deg)}body[data-world=echo] .fallback-orb{border-radius:15%;transform:rotate(-15deg)}body[data-world=wave] .fallback-orb{border-radius:5%;clip-path:polygon(50% 0,100% 100%,50% 70%,0 100%)}@keyframes equalize{from{transform:scaleY(.5)}to{transform:scaleY(1.3)}}@keyframes jump-light{0%,100%{opacity:0}38%{opacity:.65}62%{opacity:.35}}
@media(min-width:1600px){.hero-copy{padding-block:40px}.hero-copy h2{font-size:20px}.hero-copy p{font-size:13px}.world-card{height:140px}.hero{height:calc(100svh - 340px)}.card-title{font-size:22px}}
@media(max-width:1050px){.shell{width:calc(100% - 64px)}.header nav{gap:22px}.header nav a,.header nav button{font-size:9px}.brand{font-size:19px;gap:10px}.hero-copy{width:50%}h1{font-size:68px}.hero-copy h2{font-size:13px;letter-spacing:1px}.hero-copy p{font-size:10px;letter-spacing:.5px}.hero-actions{gap:15px}.primary{font-size:11px;padding:14px 16px;gap:20px}.scene-annotation{max-width:125px}.scene-annotation b{font-size:5px}.scene-annotation small{font-size:4px}.orbit-button{right:21%;font-size:7px}.world-navigation{gap:8px}.world-navigation>span{display:none}.world-tabs{gap:12px}.card-number{left:14px;top:15px;font-size:6px}.card-title{left:14px;font-size:16px;letter-spacing:1px}.card-arrow{right:13px;font-size:17px}}
@media(max-width:760px){.shell{width:calc(100% - 36px)}.header{height:80px}.brand{font-size:16px;letter-spacing:2px}.brand small{font-size:6px;letter-spacing:3px}.brand-mark{gap:3px}.brand-mark i{width:2px;height:10px}.brand-mark i:nth-child(2){height:20px}.brand-mark i:nth-child(3){height:28px}.brand-mark i:nth-child(4){height:17px}.brand-mark i:nth-child(5){height:8px}.header nav{display:none}.header-actions{gap:13px}.sound-toggle{font-size:8px;letter-spacing:.3px;padding:8px 10px;gap:6px}#fullscreen svg{height:13px;width:13px}.hero{height:690px;min-height:0;max-height:none;display:block}.hero-copy{width:100%;padding-top:28px}.eyebrow{font-size:6px;letter-spacing:1.7px}h1{font-size:52px;letter-spacing:4px;line-height:1.12;margin:18px 0 11px}h1>span{display:inline}h1>span+span:before{content:' '}.title-dot{font-size:.6em}.world-english{font-size:6px;letter-spacing:2.5px;margin-bottom:18px}.hero-copy h2{font-size:14px;letter-spacing:.8px;margin-bottom:10px}.hero-copy p{font-size:10px;line-height:2;letter-spacing:.4px}.hero-actions{margin-top:20px;gap:21px}.primary{font-size:10px;padding:13px 16px;gap:22px}.primary svg{width:16px;height:16px}.guide-link{font-size:9px}.hero-meta{font-size:7px;gap:13px;margin-top:16px}.hero-meta span+span:before{margin-right:13px}.world-counter{top:auto;bottom:44px;left:0;right:auto;gap:7px}.world-counter>span{font-size:16px}.world-counter i{width:17px}.world-counter small{font-size:7px}.world-navigation{bottom:42px;gap:8px}.world-navigation button{width:27px;height:27px;font-size:15px}.scene-annotation{top:auto;bottom:110px;right:0;max-width:145px}.scene-annotation>span{width:22px}.scene-annotation b{font-size:5px}.scene-annotation small{font-size:4px}.orbit-button{bottom:38px;right:50%;transform:translateX(50%);font-size:7px;white-space:nowrap}.orbit-button span{font-size:17px}.section-caption{font-size:8px;letter-spacing:1px;margin-bottom:13px}.section-caption>span:last-child{font-size:5px;letter-spacing:.7px}.keyboard-hint{display:none}.world-tabs{gap:8px}.world-card{height:106px;border-radius:4px}.world-card>img{opacity:.37}.world-card.selected>img{opacity:.62}.card-shade{background:linear-gradient(0deg,#080c19df,transparent 100%)}.card-number{left:9px;top:11px;font-size:5px;letter-spacing:.7px}.card-title{left:9px;bottom:17px;font-size:12px;letter-spacing:.6px}.card-title small{font-size:6px;margin-top:7px;letter-spacing:0}.card-arrow{display:none}.worlds{padding-bottom:24px}footer{padding:15px 0 24px;font-size:6px;letter-spacing:.3px;gap:14px}.footer-center{display:none}.audio-status{font-size:6px;gap:5px;letter-spacing:.3px}.status-bars{font-size:8px;margin-left:2px}.vignette{background:linear-gradient(180deg,#04061322,transparent 50%,#04061399)}.toast{max-width:90%;white-space:nowrap;font-size:9px;padding:11px 16px}dialog{padding:30px 24px}dialog h2{font-size:25px}dialog p{font-size:11px}.fallback-orb{width:230px;height:230px;right:calc(50% - 115px);top:420px}}
@media(max-width:370px){h1{font-size:45px}.hero-copy h2{font-size:12px}.card-title{font-size:11px}.hero-copy p{font-size:9px}.hero-meta{gap:9px}.hero-meta span+span:before{margin-right:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}