:root{color-scheme:dark;--ink:#e9e6df;--dim:#9b9c9f;--gold:#dbb48d;--edge:rgba(229,220,205,.17)}
*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;overflow:hidden;background:#030509;color:var(--ink);font-family:Arial,"Microsoft YaHei",sans-serif;font-weight:400}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit;cursor:pointer}button:disabled{opacity:.28;cursor:default}button:focus-visible,a:focus-visible{outline:1px solid var(--gold);outline-offset:6px}button{border:0;background:none}a{color:inherit;text-decoration:none}[hidden]{display:none!important}#universe{position:fixed;inset:0}canvas{display:block;width:100%;height:100%;touch-action:none;outline:0}.vignette{position:fixed;inset:0;pointer-events:none;background:radial-gradient(ellipse at 54% 42%,transparent 40%,rgba(0,0,0,.46) 100%)}
.topbar{position:fixed;inset:0 0 auto;height:104px;display:flex;align-items:center;justify-content:space-between;padding:0 4.3%;pointer-events:none;z-index:4}.topbar>*{pointer-events:auto}.wordmark{display:flex;gap:13px;align-items:center;font-size:16px;letter-spacing:.18em}.wordmark-en{color:#969795;font-size:9px;letter-spacing:.28em;margin-left:6px}.brand-orbit{width:21px;height:21px;border:1px solid #b9b3a7;border-radius:50%;display:block;position:relative}.brand-orbit:after{content:"";position:absolute;width:29px;height:10px;border:1px solid #b9b3a7;border-radius:50%;transform:rotate(-35deg);left:-5px;top:4px}.top-center{font-size:9px;letter-spacing:.25em;color:#979794}.topbar nav{display:flex;gap:19px;align-items:center}.icon-button{width:28px;height:30px;display:grid;place-items:center;opacity:.7;transition:opacity .2s}.icon-button:hover{opacity:1}.icon-button svg{width:20px;height:20px}.icon-button span{border:1px solid currentColor;border-radius:50%;font-size:12px;width:18px;height:18px;line-height:17px}.sound-off{display:none}body.muted .sound-off{display:initial}body.muted .sound-wave{display:none}
.intro{position:fixed;top:26%;left:13.5%;z-index:2;pointer-events:none;max-width:520px}.intro>*{pointer-events:auto}.eyebrow,.section-label{font-size:9px;font-weight:400;letter-spacing:.22em;color:#adaba5;display:block}.eyebrow{display:flex;gap:15px;align-items:center}.eyebrow>span:first-child{width:29px;height:1px;background:#ae9c85}.intro h1{font-family:"Noto Serif SC","Songti SC","SimSun",serif;font-size:clamp(80px,9vw,142px);font-weight:400;letter-spacing:.21em;line-height:1.15;margin:27px 0 23px;text-shadow:0 0 70px #05070b}.hero-line{font-family:"Songti SC","SimSun",serif;font-size:20px;letter-spacing:.13em;margin:0 0 20px}.hero-description{font-size:12px;line-height:2;letter-spacing:.08em;color:#a5a5a3}.start-button{display:flex;justify-content:space-between;align-items:center;width:188px;padding:16px 0;border-bottom:1px solid #a58b70;margin-top:27px;font-size:12px;letter-spacing:.17em;transition:width .3s,color .3s}.start-button:hover{width:204px;color:var(--gold)}.start-button .arrow{font-size:21px;font-weight:300;letter-spacing:0}.start-note{color:#898b8e;font-size:10px;letter-spacing:.08em;margin-top:18px}.intro-footer{position:fixed;bottom:40px;left:4.3%;right:4.3%;display:flex;justify-content:space-between;font-size:10px;letter-spacing:.13em;color:#85888e}.tunnel-title{position:fixed;inset:40% 0 auto;text-align:center;pointer-events:none}.tunnel-title p{font-family:SimSun,serif;font-size:26px;letter-spacing:.4em}.tunnel-title span{font-size:11px;letter-spacing:.15em;color:#b7b9c6}
.left-note{position:fixed;left:4.3%;top:143px;max-width:280px;pointer-events:none}.left-note p{font-family:SimSun,serif;font-size:18px;letter-spacing:.06em;margin:16px 0 12px;line-height:1.6}.micro-hint{font-size:10px;letter-spacing:.06em;color:#92969b;line-height:1.7}.hover-label{position:fixed;padding:8px 0 8px 12px;border-left:1px solid #98846b;pointer-events:none;z-index:2;font-size:11px;letter-spacing:.1em;color:#e5dccf}.object-card{position:fixed;right:4.3%;top:146px;width:230px;text-align:right;pointer-events:none}.object-card h2{font-family:SimSun,serif;font-size:27px;letter-spacing:.16em;font-weight:400;margin:14px 0}.object-card p{font-size:11px;color:#a8a9ad;line-height:1.95;letter-spacing:.05em}.hold-indicator{height:1px;background:rgba(255,255,255,.13);margin-top:22px;overflow:hidden}.hold-indicator i{display:block;width:0;height:100%;background:#e1bd9c;transition:width .3s}.object-card button{pointer-events:auto;margin-top:14px;width:100%;text-align:right}.quiet-button{font-size:12px;letter-spacing:.1em;padding:13px 0;border-bottom:1px solid var(--edge);transition:color .2s}.quiet-button:hover{color:var(--gold)}.quiet-button span{margin-left:20px;font-size:17px}
.bottom-ui{position:fixed;bottom:23px;left:50%;transform:translateX(-50%);z-index:3;display:flex;align-items:center;flex-direction:column;width:min(590px,90vw);pointer-events:none}.bottom-ui>*{pointer-events:auto}.arms-row{display:flex;gap:10px;justify-content:center;align-items:flex-end;margin-bottom:14px}.arm-button{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:8px;width:33px;height:43px;color:#8b8d97;font-size:9px;letter-spacing:.04em;border-radius:4px;transition:color .2s}.arm-button:before{content:"";height:var(--arm-height,17px);width:3px;border-radius:4px;background:currentColor;opacity:.5;transition:height .2s}.arm-button.active{color:#f3cfaa}.arm-button.active:before{opacity:1;box-shadow:0 0 12px #c39f7f66}.arm-button.holding:after{content:"";position:absolute;top:0;width:3px;height:3px;border-radius:50%;background:var(--gold)}.arm-button.empty{opacity:.2}.grafting .arm-button:not(.active):not(.holding):not(.empty){color:#dbb48d}.action-bar{display:flex;align-items:center;justify-content:center;gap:23px;font-size:11px;background:linear-gradient(90deg,transparent,#070a11bb 20%,#070a11bb 80%,transparent);padding:13px 25px}.action-bar button{font-size:11px;letter-spacing:.1em;padding:4px 0;white-space:nowrap}.action-bar button:hover:not(:disabled){color:var(--gold)}#selected-label{color:#d7c7b6;white-space:nowrap;font-size:10px;letter-spacing:.08em}.bar-divider{width:1px;height:14px;background:var(--edge)}.bottom-caption{font-size:9px;letter-spacing:.12em;color:#858a95;margin:11px 0 0}.graft-instruction{font-size:11px;padding:14px 19px;margin-bottom:10px;background:#0d101aec;border:1px solid var(--edge);border-radius:6px;text-align:center}.graft-instruction>span{display:block;margin-bottom:12px;color:#d2c9be}.graft-instruction>div{display:flex;justify-content:center;gap:20px}.graft-instruction button{font-size:10px;padding:5px 0;color:#969ba3}.graft-instruction button.chosen{color:var(--gold);box-shadow:0 1px var(--gold)}.compass{position:fixed;right:4.3%;bottom:39px;display:flex;gap:12px;align-items:center;color:#818692;font-size:9px;letter-spacing:.1em}.compass>div{width:24px;height:24px;border:1px solid #434951;border-radius:50%;position:relative}.compass>div:after{content:"";position:absolute;top:3px;left:11px;height:7px;width:1px;background:#b09d85}
.toast{position:fixed;left:50%;top:112px;transform:translateX(-50%) translateY(-5px);background:#080b12dd;border:1px solid var(--edge);border-radius:30px;padding:12px 21px;font-size:11px;line-height:1.6;opacity:0;transition:opacity .3s,transform .3s;pointer-events:none;z-index:8;max-width:min(530px,85vw);text-align:center}.toast.visible{opacity:1;transform:translateX(-50%) translateY(0)}.ending{position:fixed;left:8%;top:34%;z-index:3;max-width:390px;pointer-events:none}.ending>*{pointer-events:auto}.ending h2{font-family:SimSun,serif;font-size:52px;line-height:1.35;letter-spacing:.12em;font-weight:400;margin:25px 0}.ending p{font-size:13px;color:#b8b9be;line-height:2.2;letter-spacing:.08em;white-space:pre-line}.ending button{margin-top:24px;width:185px;text-align:left}.ending .eyebrow{color:#c6ae90}.ending.blackhole{left:50%;transform:translateX(-50%);text-align:center;width:90vw}.ending.blackhole .eyebrow{justify-content:center}.ending.blackhole button{text-align:center}
.horizon{position:fixed;inset:0;background:#000;opacity:0;pointer-events:none;z-index:2;transition:opacity .3s}.object-card p{white-space:pre-line}.selected-action{color:var(--gold)}
dialog{background:#0b0e16f5;color:var(--ink);border:1px solid #30333c;border-radius:10px;width:min(520px,88vw);padding:40px;box-shadow:0 25px 120px #000b}dialog::backdrop{background:#0009;backdrop-filter:blur(7px)}dialog h2{font-family:SimSun,serif;font-weight:400;font-size:25px;line-height:1.6;letter-spacing:.06em;margin:17px 0 24px}.close-dialog{position:absolute;right:18px;top:13px;font-size:26px;color:#989ba4}dialog ol{list-style:none;margin:0;padding:0;display:grid;gap:20px}dialog li{display:grid;grid-template-columns:48px 1fr;gap:14px;font-size:12px;line-height:1.9}dialog li b{font-weight:400;color:var(--gold)}dialog li span{color:#b3b6bf}.help-foot{border-top:1px solid var(--edge);padding-top:22px;margin:25px 0 0;font-size:10px;line-height:1.9;color:#8e93a0}.dialog-actions{display:flex;justify-content:space-between;gap:24px}#restart-dialog>p{font-size:12px;color:#a5a8b0}.fatal{position:fixed;inset:0;display:grid;place-content:center;text-align:center;padding:30px;background:#05070c;z-index:20}.fatal h2{font-family:SimSun,serif;font-weight:400}.fatal p{font-size:13px;color:#abb0bd}.fatal button{margin:auto}
@media(max-height:740px){.intro{top:21%}.intro h1{font-size:88px;margin:18px 0}.hero-description{margin:10px 0}.start-button{margin-top:13px}.topbar{height:80px}.left-note,.object-card{top:112px}.ending{top:26%}.bottom-ui{bottom:13px}.intro-footer{bottom:24px}}
@media(max-width:900px){.top-center{display:none}.intro{left:9%;top:24%}.intro h1{font-size:90px}.object-card{width:190px;top:125px}.left-note{max-width:200px}.compass{display:none}.topbar{padding:0 6%}.intro-footer{left:6%;right:6%}.action-bar{gap:16px}.ending{left:7%;max-width:310px}.ending h2{font-size:38px}}
@media(max-width:580px){.topbar{height:80px}.wordmark-en{display:none}.intro{left:9%;top:25%}.intro h1{font-size:76px}.hero-line{font-size:17px}.hero-description{font-size:11px}.intro-footer>span:last-child{display:none}.left-note{top:105px;max-width:170px}.left-note p{font-size:14px}.object-card{top:auto;bottom:195px;width:150px}.object-card h2{font-size:21px}.object-card p{font-size:10px}.action-bar{gap:12px;padding:12px 8px}.arms-row{gap:6px}.bottom-caption{font-size:8px}.toast{top:85px}.ending{left:8%;top:30%;width:84%}.ending h2{font-size:38px}dialog{padding:30px 24px}.start-note{max-width:220px;line-height:1.8}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}
.intro,.ending,.left-note,.object-card{isolation:isolate;text-shadow:0 2px 14px #000}
.intro:before,.ending:before,.left-note:before,.object-card:before{content:"";position:absolute;z-index:-1;inset:-45px -65px;pointer-events:none;background:radial-gradient(ellipse,#030509e8 5%,#030509b8 40%,transparent 73%)}
.intro:before{inset:-100px -100px;background:radial-gradient(ellipse,#030509eb 12%,#030509b8 40%,transparent 73%)}
.ending.blackhole:before{display:none}
.ocean-title{position:fixed;left:50%;top:42%;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;gap:20px;color:#b5c5cd;pointer-events:none;opacity:.7;text-shadow:0 0 30px #90afba22}
.ocean-title>span{font-family:SimSun,serif;font-weight:400;font-size:35px;letter-spacing:.6em;padding-left:.6em}
.ocean-title small{font-size:8px;letter-spacing:.5em;padding-left:.5em;opacity:.5}
.left-note{opacity:0;transition:opacity 1.6s}.left-note.hint-visible{opacity:1}
body[data-phase="ocean"] .arms-row{opacity:.58;transition:opacity .6s}body[data-phase="ocean"] .arms-row:hover{opacity:1}
body[data-phase="ocean"] .left-note:before{opacity:.35}
body[data-phase="transition"] .arms-row{opacity:.16;transition:opacity 1.5s}
body[data-phase="ocean"] .topbar,body[data-phase="transition"] .topbar{color:#b1bec7}
body[data-phase="ocean"] .bottom-ui,body[data-phase="transition"] .bottom-ui{bottom:30px}
.bottom-caption{min-height:12px;pointer-events:none}

.inspection-controls{pointer-events:auto;margin-top:12px;padding:10px 0;border-bottom:1px solid var(--edge)}.inspection-controls>div{display:flex;align-items:center;justify-content:flex-end;gap:16px}.object-card .inspection-controls button{margin:0;width:auto;min-width:22px;padding:5px;font-size:13px;text-align:center}.inspection-controls output{font-size:11px;color:var(--gold);font-variant-numeric:tabular-nums}.inspection-controls small{display:block;margin-top:10px;font-size:9px;color:var(--dim)}