:root{color-scheme:light;--bg: #faf9f7;--bg-alt: #f2f0ec;--surface: #ffffff;--ink: #14151c;--ink-2: #4b4d59;--ink-3: #8a8c99;--line: rgba(20, 21, 28, .08);--line-strong: rgba(20, 21, 28, .16);--accent: #4338ca;--accent-deep: #2f27a3;--accent-tint: rgba(67, 56, 202, .07);--accent-tint-strong: rgba(67, 56, 202, .14);--font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;--font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;--fs-display: clamp(2.5rem, 6vw, 4.25rem);--fs-h2: clamp(1.75rem, 3.4vw, 2.5rem);--fs-h3: 1.125rem;--fs-lead: clamp(1.0625rem, 1.6vw, 1.25rem);--fs-body: 1rem;--fs-sm: .875rem;--fs-xs: .75rem;--container: 1120px;--gutter: clamp(1.25rem, 4vw, 2.5rem);--section-y: clamp(4.5rem, 9vw, 8rem);--radius-sm: 10px;--radius: 16px;--radius-lg: 24px;--shadow-sm: 0 1px 2px rgba(20, 21, 28, .05);--shadow: 0 10px 30px -12px rgba(20, 21, 28, .16);--shadow-lg: 0 30px 60px -30px rgba(20, 21, 28, .24);--ease: cubic-bezier(.22, 1, .36, 1);--dur: .5s}*,*:before,*:after{box-sizing:border-box}*{margin:0}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px}body{font-family:var(--font-sans);font-size:var(--fs-body);line-height:1.7;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;overflow-x:hidden}img,svg{display:block;max-width:100%}h1,h2,h3,h4{font-weight:600;line-height:1.2;letter-spacing:-.02em;text-wrap:balance}p{text-wrap:pretty}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}ul,ol{list-style:none;padding:0}::selection{background:var(--accent-tint-strong);color:var(--accent-deep)}:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}@media(hover:hover)and (pointer:fine){::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:999px;border:3px solid var(--bg)}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.skip-link{position:absolute;top:-100px;left:1rem;z-index:100;padding:.6rem 1rem;border-radius:var(--radius-sm);background:var(--ink);color:#fff;font-size:var(--fs-sm);transition:top .2s var(--ease)}.skip-link:focus{top:1rem}.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:var(--gutter)}.container--narrow{max-width:760px}.section{position:relative;padding-block:var(--section-y)}.section--tinted{background:var(--bg-alt);border-block:1px solid var(--line)}.section-head{display:flex;flex-direction:column;gap:.75rem;margin-bottom:clamp(2rem,4vw,3.25rem)}.section-head--row{flex-direction:row;align-items:flex-end;justify-content:space-between;gap:2rem;flex-wrap:wrap}.section-label{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--font-mono);font-size:var(--fs-xs);letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}.section-label:before{content:"";width:22px;height:1px;background:currentColor;opacity:.6}.section-title{font-size:var(--fs-h2)}.section-desc{max-width:46ch;color:var(--ink-2);font-size:var(--fs-lead);line-height:1.65}.site-header{position:sticky;top:0;z-index:50;border-bottom:1px solid transparent;transition:background-color .3s var(--ease),border-color .3s var(--ease),backdrop-filter .3s var(--ease)}.site-header.is-stuck{background:#faf9f7c7;backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);border-bottom-color:var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;gap:2rem;height:72px}.brand{display:inline-flex;align-items:center;gap:.6rem;font-weight:600;letter-spacing:-.01em}.brand-mark{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;background:var(--ink);color:#fff;flex:none}.brand-mark svg{width:17px;height:17px}.brand-name{font-size:.975rem}.nav-links{display:flex;align-items:center;gap:.35rem}.nav-link{position:relative;padding:.45rem .8rem;border-radius:999px;font-size:var(--fs-sm);color:var(--ink-2);transition:color .2s var(--ease),background-color .2s var(--ease)}.nav-link:hover{color:var(--ink);background:var(--accent-tint)}.nav-link.is-active{color:var(--accent-deep);background:var(--accent-tint)}.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);place-items:center}.nav-toggle 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li+li{margin-top:.5rem}.footer-col a{font-size:var(--fs-sm);color:var(--ink-2);transition:color .2s var(--ease)}.footer-col a:hover{color:var(--accent-deep)}.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem;padding-top:1.75rem;border-top:1px solid var(--line);font-size:var(--fs-xs);color:var(--ink-3);font-family:var(--font-mono);letter-spacing:.02em}@media(max-width:860px){.nav-toggle{display:grid}.nav-links{position:fixed;inset:72px 0 auto;flex-direction:column;align-items:stretch;gap:.25rem;padding:.75rem var(--gutter) 1.25rem;background:#faf9f7f5;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);transform:translateY(-8px);opacity:0;visibility:hidden;transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s}.nav-links.is-open{opacity:1;visibility:visible;transform:translateY(0)}.nav-link{padding:.7rem .9rem;font-size:.9375rem;border-radius:10px}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;height:44px;padding-inline:1.15rem;border-radius:999px;font-size:var(--fs-sm);font-weight:500;white-space:nowrap;transition:transform .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease)}.btn:hover{transform:translateY(-1px)}.btn:active{transform:translateY(0)}.btn--primary{background:var(--ink);color:#fff;box-shadow:var(--shadow-sm)}.btn--primary:hover{background:#000;box-shadow:var(--shadow)}.btn--ghost{border:1px solid var(--line-strong);color:var(--ink)}.btn--ghost:hover{border-color:var(--ink);background:var(--surface)}.btn svg{width:15px;height:15px;flex:none}.hero{position:relative;padding-top:clamp(3.5rem,8vw,6rem);padding-bottom:clamp(4rem,9vw,7rem);overflow:hidden}.hero:before{content:"";position:absolute;inset:-20% -10% auto;height:130%;background-image:radial-gradient(circle at 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em{font-style:normal;color:var(--accent);position:relative}.hero-lead{margin-top:1.5rem;max-width:40ch;font-size:var(--fs-lead);line-height:1.75;color:var(--ink-2)}.hero-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:2.25rem}.hero-meta{display:flex;flex-wrap:wrap;gap:.5rem 1.5rem;margin-top:2.75rem;padding-top:1.5rem;border-top:1px solid var(--line);font-family:var(--font-mono);font-size:var(--fs-xs);color:var(--ink-3);letter-spacing:.02em}.hero-meta span{display:inline-flex;align-items:center;gap:.4rem}.hero-visual{position:relative;aspect-ratio:1;max-width:420px;margin-inline:auto;width:100%}.orbit{position:absolute;inset:0;border:1px solid var(--line-strong);border-radius:50%}.orbit:nth-child(2){inset:13%}.orbit:nth-child(3){inset:26%;border-style:dashed;border-color:var(--line)}.orbit-core{position:absolute;inset:38%;border-radius:50%;background:radial-gradient(circle at 32% 28%,#6d63ee,var(--accent) 55%,var(--accent-deep));box-shadow:0 0 0 1px #4338ca33,0 20px 50px 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var(--line)}.stat-value{font-size:clamp(1.5rem,3vw,2rem);font-weight:600;letter-spacing:-.03em;line-height:1.1}.stat-label{margin-top:.35rem;font-size:var(--fs-xs);color:var(--ink-3);font-family:var(--font-mono);letter-spacing:.04em}.about-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.8fr);gap:clamp(2rem,5vw,4rem);align-items:start}.prose p+p{margin-top:1.1rem}.prose p{color:var(--ink-2);line-height:1.85}.prose strong{color:var(--ink);font-weight:600}.fact-list{display:grid;gap:.75rem}.fact{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;padding-bottom:.75rem;border-bottom:1px dashed var(--line-strong);font-size:var(--fs-sm)}.fact dt{color:var(--ink-3);font-family:var(--font-mono);font-size:var(--fs-xs);letter-spacing:.04em;flex:none}.fact 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svg{width:19px;height:19px}.card-title{font-size:var(--fs-h3);letter-spacing:-.01em}.card-text{font-size:var(--fs-sm);color:var(--ink-2);line-height:1.7}.card-foot{margin-top:auto;padding-top:1rem;font-family:var(--font-mono);font-size:var(--fs-xs);color:var(--ink-3);letter-spacing:.03em;display:flex;align-items:center;gap:.4rem}.timeline{display:grid;gap:0;border-top:1px solid var(--line)}.tl-item{display:grid;grid-template-columns:140px minmax(0,1fr);gap:clamp(1rem,4vw,3rem);padding-block:1.75rem;border-bottom:1px solid var(--line);transition:background-color .3s var(--ease)}.tl-item:hover{background:#fff9}.tl-time{font-family:var(--font-mono);font-size:var(--fs-xs);color:var(--ink-3);letter-spacing:.04em;padding-top:.3rem}.tl-body h3{font-size:1.0625rem;margin-bottom:.35rem}.tl-body p{font-size:var(--fs-sm);color:var(--ink-2)}.tag-row{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.5rem}.tag{display:inline-flex;align-items:center;height:28px;padding-inline:.7rem;border-radius:999px;border:1px solid var(--line-strong);background:var(--surface);font-size:var(--fs-xs);color:var(--ink-2);font-family:var(--font-mono);letter-spacing:.02em}.reveal{opacity:0;transform:translateY(16px);transition:opacity .7s var(--ease),transform .7s var(--ease);will-change:opacity,transform}.reveal.is-in{opacity:1;transform:none}.reveal[data-delay="1"]{transition-delay:.08s}.reveal[data-delay="2"]{transition-delay:.16s}.reveal[data-delay="3"]{transition-delay:.24s}@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}.orbit-node{animation:none}}.error-page{min-height:100svh;display:grid;place-items:center;text-align:center;padding:var(--gutter)}.error-code{font-family:var(--font-mono);font-size:clamp(4rem,14vw,8rem);line-height:1;letter-spacing:-.04em;color:var(--accent);opacity:.18}.error-page h1{margin-top:-.5rem;font-size:clamp(1.5rem,4vw,2rem)}.error-page p{margin-top:.75rem;color:var(--ink-2)}.error-page .btn{margin-top:2rem}@media(max-width:960px){.hero-inner{grid-template-columns:1fr}.hero-visual{order:-1;max-width:260px;opacity:.95}.hero-eyebrow{margin-bottom:1.25rem}.about-grid{grid-template-columns:1fr}.card-grid,.stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}.stat:nth-child(3){border-left:0;padding-left:0}.stat:nth-child(n+3){border-top:1px solid var(--line)}}@media(max-width:640px){.card-grid{grid-template-columns:1fr}.tl-item{grid-template-columns:1fr;gap:.35rem}.hero-meta{gap:.4rem 1rem}.stat{padding-block:1.25rem}}