@charset "UTF-8";
:root{--bg:#171a17;--panel:#1e221d;--text:#f1f3e9;--muted:#a4ad9f;--line:#343b31;--accent:#c5f774;--ink:#192014;--grid:#2a3126}
:root[data-theme="light"]{--bg:#f4f5ee;--panel:#e9ece1;--text:#20271d;--muted:#5e6858;--line:#d1d8c8;--accent:#c5f774;--ink:#192014;--grid:#dce2d3}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible{outline:3px solid var(--accent);outline-offset:6px}.site-shell{max-width:1248px;padding:0 56px;margin:auto}header{height:112px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;gap:12px;align-items:center;font-size:18px;font-weight:750;letter-spacing:1px}.brand-mark{font-size:38px;color:var(--accent);line-height:1}.slash{color:var(--muted);font-weight:400;margin:0 4px}.brand-sub{font-size:14px;font-weight:400;letter-spacing:0;color:var(--muted)}.theme-button{display:flex;gap:9px;align-items:center;border:1px solid var(--line);background:transparent;color:var(--muted);padding:10px 15px;border-radius:24px;font-size:12px}.theme-button span:first-child{font-size:18px}.hero{display:grid;grid-template-columns:1.12fr 1fr;gap:36px;align-items:center;padding:86px 0 88px}.eyebrow{display:flex;align-items:center;gap:9px;font-size:10px;letter-spacing:1.8px;color:var(--muted);font-weight:600}.eyebrow>span{width:6px;height:6px;background:var(--accent);border-radius:50%}h1{font-size:clamp(42px,5vw,66px);font-weight:650;line-height:1.32;letter-spacing:-2px;margin:28px 0 24px}.highlight{color:var(--accent)}[data-theme="light"] .highlight{color:#4d761c}.intro{font-size:15px;line-height:1.9;color:var(--muted);margin:0 0 30px}.primary{display:inline-flex;align-items:center;justify-content:space-between;gap:40px;padding:17px 21px;background:var(--accent);color:var(--ink);font-size:14px;font-weight:650;border-radius:5px;transition:transform .2s}.primary:hover{transform:translateY(-3px)}.primary span{font-size:20px}.hero-note{display:flex;align-items:center;gap:9px;font-size:11px;color:var(--muted);margin-top:26px}.tiny-line{height:1px;width:20px;background:var(--muted)}.art{aspect-ratio:1;position:relative;overflow:hidden;border:1px solid var(--line);border-radius:14px;background:radial-gradient(ellipse at center,#879c3f18,transparent 65%),linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:auto,38px 38px,38px 38px;display:grid;place-items:center}.art-coordinate{position:absolute;top:22px;left:23px;font-size:9px;letter-spacing:2px;color:var(--muted)}.orbit{position:absolute;border:1px solid #a9c07860;border-radius:50%;width:75%;height:75%}.orbit-one{transform:rotate(-35deg) scaleX(.52)}.orbit-two{transform:rotate(35deg) scaleX(.52)}.orbit-three{transform:rotate(90deg) scaleX(.52)}.star{font-family:Arial,sans-serif;font-size:230px;line-height:1;color:var(--accent);z-index:1;text-shadow:0 0 60px #b5ed6140;animation:float 8s ease-in-out infinite}.orb{position:absolute;border-radius:50%;z-index:2}.orb-one{width:20px;height:20px;background:var(--accent);top:24%;right:20%;box-shadow:0 0 25px #c5f77430}.orb-two{width:10px;height:10px;background:var(--muted);bottom:23%;left:21%}.art-caption{position:absolute;bottom:22px;left:23px;right:23px;display:flex;justify-content:space-between;font-size:10px;letter-spacing:2px;color:var(--muted)}.art-caption span{color:var(--accent);font-size:22px}.section-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}.section-hint{color:var(--muted);font-size:11px}.experiment{border:1px solid var(--line);border-radius:10px;background:var(--panel);padding:35px 38px;display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}.pill{font-size:10px;color:var(--muted);border:1px solid var(--line);padding:5px 9px;border-radius:4px}h2{margin:18px 0 12px;font-size:28px;font-weight:600;letter-spacing:-.8px}.experiment-copy p,.details p{font-size:12px;line-height:1.9;color:var(--muted);margin:0}.charge-top{display:flex;justify-content:space-between;align-items:center;font-size:10px;letter-spacing:1px;color:var(--muted);margin-bottom:14px}#energy-value{font-size:27px;letter-spacing:-1px;color:var(--text);font-variant-numeric:tabular-nums}.meter{height:12px;background:var(--bg);border:1px solid var(--line);border-radius:3px;overflow:hidden}#fill{height:100%;width:0;background:var(--accent);transition:width .4s}.charge-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:20px;gap:14px}#message{font-size:10px;color:var(--muted)}#charge{display:flex;align-items:center;gap:16px;background:var(--accent);color:var(--ink);border:0;padding:11px 14px;border-radius:4px;font-size:12px;font-weight:600;white-space:nowrap}.details{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;padding:48px 0 58px}.detail-number{font-family:monospace;font-size:10px;color:var(--muted)}h3{font-size:15px;font-weight:600;margin:15px 0 11px}.details>div+div{border-left:1px solid var(--line);padding-left:35px}footer{padding:26px 0 32px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:9px;letter-spacing:1px}footer>span:nth-child(2){display:flex;align-items:center;gap:12px}.footer-star{color:var(--accent);font-size:20px}footer a{letter-spacing:0;font-size:11px}@keyframes float{0%,100%{transform:rotate(-10deg) scale(1)}50%{transform:rotate(10deg) scale(1.04)}}
@media(min-width:1500px){.site-shell{max-width:1320px}.hero{padding:100px 0}}
@media(max-width:800px){.site-shell{padding:0 28px}header{height:84px}.hero{gap:25px;padding:56px 0}.art{min-width:0}.star{font-size:170px}.experiment{padding:28px;gap:25px}.charge-bottom{align-items:flex-start;flex-direction:column}.details{gap:22px}.details>div+div{padding-left:22px}}
@media(max-width:580px){.site-shell{padding:0 22px}.brand{font-size:15px;gap:7px}.brand-mark{font-size:30px}.theme-button{padding:8px 10px}#theme-label{display:none}.hero{grid-template-columns:1fr;padding:44px 0;gap:36px}h1{font-size:46px;margin-top:23px}.art{max-width:400px;width:100%;justify-self:center}.star{font-size:210px}.eyebrow{font-size:9px;letter-spacing:1.2px}.section-hint{font-size:9px}.experiment{grid-template-columns:1fr;gap:30px;padding:26px 23px}.charge-bottom{flex-direction:row;align-items:center}.details{grid-template-columns:1fr;gap:25px;padding:32px 0}.details>div{display:grid;grid-template-columns:25px 1fr;column-gap:12px}.detail-number{grid-row:1/3;padding-top:3px}.details h3{margin:0 0 8px}.details>div+div{border-left:0;border-top:1px solid var(--line);padding:22px 0 0}.details p br{display:none}footer{gap:20px;flex-wrap:wrap;font-size:8px}footer>span:nth-child(2){display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}