:root{--bg:#02040a;--ink:#f2f6fc;--muted:#8e9bae;--dim:#596577;--line:rgba(255,255,255,.12);--accent:#8fc7ff;--gold:#ffd08a;--ease:cubic-bezier(.22,1,.36,1);color-scheme:dark}
*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;overflow:hidden;background:var(--bg)}body{color:var(--ink);font-family:"SF Pro Display","Inter","PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}p,h1,h2,dl,dd,dt{margin:0}button{font:inherit;color:inherit;cursor:pointer}a{color:inherit;text-decoration:none}::selection{background:rgba(143,199,255,.3)}:focus-visible{outline:1px solid var(--accent);outline-offset:4px}
.app{position:fixed;inset:0;overflow:hidden;isolation:isolate}
#scene{position:absolute;inset:0;width:100%;height:100%;z-index:1;touch-action:none;cursor:grab}#scene.is-dragging{cursor:grabbing}
.vignette{position:absolute;inset:0;z-index:3;pointer-events:none;background:radial-gradient(circle at 50% 46%,transparent 28%,rgba(1,3,8,.45) 76%,rgba(1,3,8,.86) 100%),linear-gradient(90deg,rgba(1,3,8,.6),transparent 26%,transparent 74%,rgba(1,3,8,.46))}
.grain{position:absolute;inset:-30%;z-index:4;pointer-events:none;opacity:.03;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='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");animation:grain 8s steps(10) infinite}@keyframes grain{50%{transform:translate(2%,-1.5%)}100%{transform:translate(0)}}
.topbar{position:absolute;z-index:10;top:0;left:0;right:0;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:20px;padding:24px clamp(20px,4vw,54px);pointer-events:none}.brand,.crumb,.actions{pointer-events:auto}
.brand{display:flex;align-items:center;gap:10px;font-size:11px;letter-spacing:.16em}.brand b{font-weight:650}.brand i{color:var(--accent);font-style:normal}.brand span:last-child{color:var(--muted);letter-spacing:.1em}.mark{width:18px;height:18px;border:1px solid rgba(255,255,255,.5);border-radius:50%;position:relative}.mark:before,.mark:after{content:"";position:absolute;inset:3px -6px;border:1px solid rgba(143,199,255,.6);border-radius:50%;transform:rotate(-32deg)}.mark:after{transform:rotate(32deg);opacity:.4}
.crumb{display:flex;gap:10px;font-size:9px;letter-spacing:.16em;color:var(--dim);text-transform:uppercase}.crumb i{color:var(--accent);font-style:normal}.crumb strong{font-weight:500;color:#c6d2e2}.actions{justify-self:end;display:flex;gap:7px}
.hud-btn{border:1px solid var(--line);background:rgba(5,9,16,.45);color:#c5d0df;border-radius:999px;padding:8px 12px;font-size:10px;letter-spacing:.06em;backdrop-filter:blur(14px);transition:.3s var(--ease)}.hud-btn span{color:var(--dim);font-size:8px;margin-left:4px}.hud-btn:hover{border-color:rgba(143,199,255,.55);color:#fff;background:rgba(143,199,255,.08)}
.intro{position:absolute;z-index:8;left:clamp(24px,5vw,78px);top:50%;transform:translateY(-50%);max-width:350px;pointer-events:none;transition:opacity .7s var(--ease),transform .7s var(--ease)}.app.is-focused .intro{opacity:0;transform:translateY(-50%) translateY(-14px)}.eyebrow{display:flex;align-items:center;gap:9px;font-size:9px;letter-spacing:.2em;color:var(--muted);text-transform:uppercase}.eyebrow>span{width:24px;height:1px;background:var(--accent)}
.intro h1{font-size:clamp(58px,7.4vw,118px);line-height:1;letter-spacing:-.07em;font-weight:600;margin-top:22px}.intro h1 span{color:var(--accent)}.lead{margin-top:24px;color:#b4bfce;font-size:13px;line-height:1.9}.hint{display:flex;align-items:center;gap:8px;margin-top:28px;color:var(--dim);font-size:10px}.dot{width:5px;height:5px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 0 rgba(143,199,255,.5);animation:pulse 2.4s infinite}@keyframes pulse{70%{box-shadow:0 0 0 9px rgba(143,199,255,0)}100%{box-shadow:0 0 0 0 rgba(143,199,255,0)}}
.labels{position:absolute;inset:0;z-index:6;pointer-events:none;overflow:hidden}.label{position:absolute;left:0;top:0;transform:translate(-50%,-50%);font-size:9px;letter-spacing:.06em;color:#cbd7e7;text-shadow:0 2px 8px #02040a;white-space:nowrap;transition:opacity .25s;padding:4px 6px;border-radius:5px}.label b{font-weight:500}.label em{display:block;text-align:center;font-style:normal;font-size:7px;letter-spacing:.14em;color:var(--dim);margin-top:2px}.label.is-active{color:#fff;background:rgba(8,14,25,.72);border:1px solid rgba(143,199,255,.25)}.label.is-sat{color:#9fd7ff;font-size:8px}
.tooltip{position:absolute;z-index:15;pointer-events:none;padding:9px 11px;border:1px solid rgba(143,199,255,.28);border-radius:8px;background:rgba(4,8,15,.9);backdrop-filter:blur(14px);box-shadow:0 14px 38px rgba(0,0,0,.45)}.tooltip[hidden]{display:none}.tooltip span{display:block;font-size:8px;letter-spacing:.12em;color:var(--accent);margin-bottom:3px}.tooltip strong{display:block;font-size:12px;font-weight:550}.tooltip em{position:absolute;right:10px;top:10px;font-style:normal;color:var(--dim);font-size:8px}
.dock{position:absolute;z-index:10;left:50%;bottom:54px;transform:translateX(-50%);display:flex;gap:2px;max-width:calc(100vw - 32px);overflow-x:auto;scrollbar-width:none;padding:4px;border:1px solid rgba(255,255,255,.08);border-radius:999px;background:rgba(5,9,16,.5);backdrop-filter:blur(18px)}.dock::-webkit-scrollbar{display:none}.dock button{flex:0 0 auto;border:0;background:transparent;border-radius:999px;color:var(--muted);font-size:10px;letter-spacing:.04em;padding:7px 11px;transition:.3s var(--ease);white-space:nowrap}.dock button:hover{color:#fff}.dock button.is-active{background:rgba(143,199,255,.16);color:#fff}
.bottom{position:absolute;z-index:10;left:clamp(20px,4vw,54px);right:clamp(20px,4vw,54px);bottom:22px;display:flex;justify-content:space-between;color:var(--dim);font-size:8px;letter-spacing:.12em;pointer-events:none}.bottom span:nth-child(2){position:absolute;left:50%;transform:translateX(-50%)}.bottom .credit{position:absolute;right:0;bottom:-14px;font-size:7px;color:rgba(255,255,255,.22);pointer-events:auto;letter-spacing:.1em}.bottom .credit:hover{color:var(--muted)}
.panel{position:fixed;inset:0;z-index:30;visibility:hidden;pointer-events:none}.panel.is-open{visibility:visible;pointer-events:none}.panel__scrim{position:absolute;inset:0;background:linear-gradient(90deg,transparent 18%,rgba(1,3,7,.24));opacity:0;transition:.5s;pointer-events:none}.panel.is-open .panel__scrim{opacity:1}
.panel__sheet{position:absolute;right:0;top:0;bottom:0;width:min(420px,92vw);padding:clamp(28px,4vw,46px);background:rgba(5,9,16,.96);border-left:1px solid var(--line);transform:translateX(100%);transition:transform .65s var(--ease);overflow-y:auto;scrollbar-width:thin;pointer-events:auto}.panel.is-open .panel__sheet{transform:none}.close{position:absolute;right:18px;top:18px;width:34px;height:34px;border-radius:50%;border:1px solid var(--line);background:transparent;color:#fff;font-size:20px;line-height:1;display:grid;place-items:center}.close:hover{background:#fff;color:#02040a}
.panel__sheet .eyebrow{color:var(--accent);margin-top:26px}.panel h2{font-size:42px;line-height:1;letter-spacing:-.05em;margin-top:12px;font-weight:600}.panel-en{color:var(--dim);font-size:9px;letter-spacing:.22em;margin-top:10px}.panel-story{color:#b4bfce;font-size:13px;line-height:1.9;margin-top:26px}.panel-stats{display:grid;grid-template-columns:1fr 1fr;gap:16px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px 0;margin-top:24px}.panel-stats div{display:grid;gap:4px}.panel-stats dt{font-size:8px;letter-spacing:.1em;color:var(--dim);text-transform:uppercase}.panel-stats dd{font-size:12px}.panel-meta{color:var(--dim);font-size:9px;line-height:1.7;margin-top:18px}.back-btn{margin-top:22px;border:1px solid var(--line);background:transparent;border-radius:999px;padding:9px 14px;font-size:10px;color:#cbd7e7}.back-btn:hover{border-color:var(--accent);color:#fff}
.warp{position:absolute;inset:0;z-index:20;pointer-events:none;opacity:0;overflow:hidden;background:radial-gradient(circle at 50% 50%,rgba(143,199,255,.12),transparent 35%)}.warp.is-on{animation:warp .95s var(--ease)}.warp span{position:absolute;left:50%;top:50%;width:1px;height:46vh;background:linear-gradient(transparent,rgba(190,220,255,.7),transparent);transform-origin:50% 0;opacity:.5}.warp span:nth-child(1){transform:rotate(20deg)}.warp span:nth-child(2){transform:rotate(150deg)}.warp span:nth-child(3){transform:rotate(270deg)}@keyframes warp{0%{opacity:0}25%{opacity:1}100%{opacity:0}}
.loading{position:fixed;inset:0;z-index:50;background:#02040a;display:grid;place-content:center;justify-items:center;gap:18px;transition:opacity .7s,visibility .7s}.loading.is-done{opacity:0;visibility:hidden;pointer-events:none}.loading-ring{width:38px;height:38px;border:1px solid rgba(143,199,255,.24);border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite}.loading p{color:var(--dim);font-size:8px;letter-spacing:.18em}.loading b{color:var(--accent);font-weight:400;margin-left:6px}@keyframes spin{to{transform:rotate(360deg)}}
@media(max-width:1000px){.intro{max-width:290px}.intro h1{font-size:clamp(52px,8vw,86px)}.crumb{display:none}.topbar{grid-template-columns:1fr auto}}
@media(max-width:700px){.topbar{padding:16px 18px}.brand{font-size:10px}.hud-btn{padding:7px 9px;font-size:9px}.intro{top:90px;transform:none;left:20px;max-width:260px}.intro h1{font-size:58px;margin-top:14px}.lead{font-size:11px;line-height:1.75;margin-top:14px}.hint{margin-top:14px;font-size:9px}.dock{bottom:44px}.bottom{left:18px;right:18px;bottom:16px;font-size:7px}.bottom span:first-child,.bottom span:nth-child(2){display:none}.bottom span:last-child{margin-left:auto}.panel__sheet{top:auto;width:100%;height:min(64vh,610px);border-left:0;border-top:1px solid var(--line);border-radius:18px 18px 0 0;transform:translateY(100%)}.panel.is-open .panel__sheet{transform:none}.label{font-size:8px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}