:root{--ground:#0e0d0c;--surface:#17140f;--surface-2:#1f1b15;--line:#2c2620;--line-soft:#221e19;--ink:#ede9e3;--ink-2:#b6aea3;--ink-3:#8b8378;--accent:#c9853a;--accent-dim:#7a5223;--accent-wash:#c9853a1a;--grain-oak:#2a2016;--grain-walnut:#1e1611;--grain-ash:#26221c;--grain-mist:#232326;--serif:"Noto Serif SC", Songti SC, SimSun, Georgia, serif;--sans:"Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;--mono:"JetBrains Mono", "SFMono-Regular", Consolas, monospace;--fs-hero:clamp(34px, 5.6vw, 66px);--fs-h2:clamp(28px, 3.4vw, 44px);--fs-h3:20px;--fs-lede:clamp(17px, 1.5vw, 19px);--fs-body:15px;--fs-small:13.5px;--fs-mono:11px;--lh-tight:1.24;--lh-head:1.34;--lh-body:1.85;--ls-mono:.22em;--maxw:1180px;--pad:28px;--rail:96px;--sec-y:96px;--dur-fast:.18s;--dur-base:.42s;--dur-slow:.9s;--dur-sweep:1.6s;--ease-out:cubic-bezier(.22, .61, .36, 1);--ease-io:cubic-bezier(.65, 0, .35, 1)}@media (width<=900px){:root{--rail:0px;--sec-y:64px;--pad:20px}}*,:after,:before{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--ground);color:var(--ink);font-family:var(--sans);font-size:16px;font-weight:300;line-height:var(--lh-body);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;margin:0}h1,h2,h3,h4{font-family:var(--serif);text-wrap:balance;margin:0;font-weight:700}p{margin:0}a{color:inherit;text-decoration:none}canvas,img,video{max-width:100%;display:block}button{font:inherit;color:inherit;cursor:pointer;background:0 0;border:0}:focus-visible{outline:2px solid var(--accent);outline-offset:3px}::selection{background:var(--accent-dim);color:#fff}body{overflow-x:hidden}.scroll-x{-webkit-overflow-scrolling:touch;overflow-x:auto}.sr-only{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:after,:before{transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}}.sec{max-width:var(--maxw);padding:var(--sec-y) var(--pad) var(--sec-y) calc(var(--pad) + var(--rail));border-top:1px solid var(--line-soft);margin:0 auto;position:relative}@media (width<=900px){.sec{padding-left:var(--pad)}}.tick{left:var(--pad);top:var(--sec-y);background:var(--accent-dim);width:29px;height:1px;position:absolute}@media (width<=900px){.tick{display:none}}.eyebrow{letter-spacing:.1em;color:var(--ink-3);margin-bottom:20px;font-size:12.5px;font-weight:400}.eyebrow b{color:var(--accent);font-weight:500}.sec h2{font-size:var(--fs-h2);line-height:var(--lh-head)}.sec h2 span{display:block}.lede{max-width:60ch;font-size:var(--fs-lede);color:var(--ink-2);margin-top:24px;line-height:1.9}.code{font-family:var(--mono);font-size:var(--fs-mono);letter-spacing:.16em;color:var(--accent)}.label{letter-spacing:.06em;color:var(--ink-3);font-size:12px}