:root{--gray-0: #ffffff;--gray-50: #f7f7f7;--gray-100: #ebebeb;--gray-200: #d6d6d6;--gray-300: #b8b8b8;--gray-500: #707070;--gray-700: #383838;--gray-900: #111111;--surface-page: var(--gray-50);--surface-page-raised: var(--gray-0);--surface-page-muted: var(--gray-100);--surface-inverse: var(--gray-900);--surface-inverse-raised: var(--gray-700);--surface-inverse-soft: #252525;--surface-inverse-translucent: rgb(17 17 17 / 94%);--surface-inverse-overlay: rgb(17 17 17 / 82%);--text-primary: var(--gray-900);--text-secondary: #444444;--text-muted: var(--gray-500);--text-soft: #858585;--text-on-inverse: var(--gray-50);--text-on-inverse-muted: #c7c7c7;--text-on-inverse-soft: #a0a0a0;--line-default: var(--gray-200);--line-strong: #aaaaa5;--line-inverse: #4d4d4d;--line-inverse-strong: #707070;--line-inverse-subtle: #303030;--grid-inverse: #303030;--focus-ring: var(--gray-900);--surface-night: var(--surface-inverse);--surface-night-raised: rgb(247 247 247 / 6%);--surface-night-soft: rgb(247 247 247 / 10%);--surface-paper: var(--surface-page);--surface-paper-raised: rgb(255 255 255 / 46%);--surface-paper-muted: rgb(17 17 17 / 5%);--surface-lamp: var(--gray-0);--surface-river: var(--gray-200);--text-on-night: var(--text-on-inverse);--text-on-night-muted: var(--text-on-inverse-muted);--text-on-night-soft: var(--text-on-inverse-soft);--text-on-paper-muted: var(--text-secondary);--text-on-paper-soft: var(--text-soft);--accent-light: var(--gray-0);--accent-route: var(--gray-0);--accent-route-on-paper: var(--gray-900);--border-subtle: var(--line-default);--border-strong: var(--line-strong);--border-on-night: var(--line-inverse);--border-on-night-strong: var(--line-inverse-strong);--grid-on-night: var(--grid-inverse);--shadow-night: none;--glow-light: none;--glow-route: none;--radius-sm: 0;--radius-md: 0;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.5rem;--space-6: 2rem;--space-7: 3rem;--space-8: 4rem;--space-9: 6rem;--space-10: 8rem;--content-width: 78rem;--reading-width: 44rem;--font-display: "Songti SC", "STSong", "SimSun", serif;--font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", ui-sans-serif, system-ui, sans-serif;--font-code: "SFMono-Regular", Consolas, "Liberation Mono", monospace;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: clamp(1.25rem, 1.1rem + .6vw, 1.65rem);--font-size-display: clamp(3.75rem, 13vw, 10rem);--motion-fast: .15s;--motion-base: .36s;--motion-slow: .9s;--ease-out: cubic-bezier(.16, 1, .3, 1);--header-height: 4.5rem}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--surface-inverse)}body{margin:0;background:var(--surface-page);color:var(--text-primary);font-family:var(--font-body);font-size:var(--font-size-base);line-height:1.7;text-rendering:optimizeLegibility;overflow-wrap:break-word}a{color:inherit;text-decoration-thickness:.08em;text-underline-offset:.22em}button,a{-webkit-tap-highlight-color:transparent}:focus-visible{outline:2px solid var(--focus-ring);outline-offset:3px}img,picture{display:block;max-width:100%}[hidden]{display:none!important}h1,h2,h3,p{margin-block-start:0}h1,h2,h3{line-height:1.08;letter-spacing:-.045em;text-wrap:balance}h1,h2{font-family:var(--font-display);font-weight:700}h3{font-weight:700}main{min-height:60vh}.container{width:min(calc(100% - 2rem),var(--content-width));margin-inline:auto}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.eyebrow{margin-bottom:var(--space-3);color:var(--text-muted);font-size:var(--font-size-xs);font-weight:800;letter-spacing:.14em;text-transform:uppercase}.prose{max-width:var(--reading-width)}.prose p{color:var(--text-muted)}.prose a{font-weight:700}.mono{font-family:var(--font-code);letter-spacing:.08em;text-transform:uppercase}.page-hero{position:relative;overflow:hidden;padding-block:clamp(4rem,10vw,8rem);color:var(--text-on-inverse);background:var(--surface-inverse)}.page-hero:after{position:absolute;right:-12vw;bottom:0;width:min(58rem,78vw);height:1px;background:var(--line-inverse-strong);content:"";transform:rotate(-8deg);transform-origin:right}.page-hero .eyebrow{color:var(--text-on-inverse-muted)}.page-hero h1{max-width:12ch;margin-bottom:var(--space-5);font-size:clamp(3.25rem,9vw,7.5rem)}.page-hero .lead{max-width:40rem;margin-bottom:0;color:var(--text-on-night-muted);font-size:var(--font-size-lg)}.button-link{display:inline-flex;min-height:2.75rem;align-items:center;justify-content:center;gap:var(--space-3);padding:.7rem 1rem;border:1px solid transparent;font-size:var(--font-size-sm);font-weight:800;line-height:1.2;text-decoration:none;transition:transform var(--motion-fast) var(--ease-out),background-color var(--motion-fast) var(--ease-out)}.button-link{background:var(--surface-page-raised);color:var(--text-primary);border-color:var(--line-strong)}.button-link:hover{transform:translateY(-2px)}.button-link.secondary{border-color:currentColor;background:transparent}.button-link.on-night{border-color:var(--line-inverse-strong);background:transparent;color:var(--text-on-inverse)}.button-link.on-night:hover{background:var(--surface-inverse-soft)}.section-shell{padding-block:clamp(5rem,11vw,9rem)}.section-heading{display:grid;gap:var(--space-3);margin-bottom:clamp(2.5rem,6vw,5rem)}.section-heading h2{max-width:13ch;margin:0;font-size:clamp(2.65rem,7vw,6rem)}.section-heading>p:last-child{max-width:38rem;margin-bottom:0;color:var(--text-muted)}@media(min-width:48rem){.container{width:min(calc(100% - 4rem),var(--content-width))}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}.site-footer[data-astro-cid-gcn2mc3v]{padding:clamp(5rem,10vw,8rem) 0 var(--space-4);background:var(--surface-night);color:var(--text-on-night)}.footer-grid[data-astro-cid-gcn2mc3v]{display:grid;gap:var(--space-7)}.footer-statement[data-astro-cid-gcn2mc3v] h2[data-astro-cid-gcn2mc3v]{max-width:10ch;margin:0;font-size:clamp(2.75rem,7vw,6rem)}.footer-statement[data-astro-cid-gcn2mc3v]>p[data-astro-cid-gcn2mc3v]:last-child{max-width:36rem;margin:var(--space-5) 0 0;color:var(--text-on-night-muted)}.footer-meta[data-astro-cid-gcn2mc3v]{display:grid;align-content:end;justify-items:start;gap:.2rem;color:var(--text-on-night-muted)}.footer-meta[data-astro-cid-gcn2mc3v] a[data-astro-cid-gcn2mc3v],.footer-meta[data-astro-cid-gcn2mc3v] span[data-astro-cid-gcn2mc3v]{display:inline-flex;min-height:44px;align-items:center}.footer-meta[data-astro-cid-gcn2mc3v] a[data-astro-cid-gcn2mc3v]{color:var(--text-on-night)}.footer-label[data-astro-cid-gcn2mc3v]{min-height:auto!important;margin:0 0 var(--space-3);color:var(--text-on-inverse-muted);font-size:var(--font-size-xs)}.footer-bottom[data-astro-cid-gcn2mc3v]{display:flex;justify-content:space-between;gap:1rem;margin-top:var(--space-8);padding-top:var(--space-3);border-top:1px solid var(--border-on-night);color:var(--text-on-night-soft);font-size:.75rem}.site-footer[data-astro-cid-gcn2mc3v] .eyebrow[data-astro-cid-gcn2mc3v]{color:var(--text-on-inverse-muted)}@media(max-width:32rem){.footer-bottom[data-astro-cid-gcn2mc3v]{flex-direction:column}}@media(min-width:48rem){.footer-grid[data-astro-cid-gcn2mc3v]{grid-template-columns:minmax(0,1.35fr) minmax(15rem,.65fr)}}.site-header[data-astro-cid-ctg3m53h]{position:sticky;top:0;z-index:20;border-bottom:1px solid var(--border-on-night);background:var(--surface-inverse-translucent);color:var(--text-on-night)}.header-inner[data-astro-cid-ctg3m53h]{display:flex;min-height:var(--header-height);align-items:center;gap:clamp(.5rem,2vw,1.5rem)}.brand[data-astro-cid-ctg3m53h]{display:inline-flex;min-height:44px;align-items:center;gap:.6rem;color:var(--text-on-night);font-weight:800;letter-spacing:-.03em;text-decoration:none;white-space:nowrap}.brand-mark[data-astro-cid-ctg3m53h]{position:relative;display:block;width:2.1rem;height:1.5rem;overflow:hidden}.brand-mark[data-astro-cid-ctg3m53h]:before,.brand-mark[data-astro-cid-ctg3m53h]:after{position:absolute;left:-.2rem;width:2.2rem;height:1px;background:var(--text-on-inverse);content:"";transform:rotate(18deg);transform-origin:left}.brand-mark[data-astro-cid-ctg3m53h]:before{top:.45rem}.brand-mark[data-astro-cid-ctg3m53h]:after{top:1rem;transform:rotate(-13deg)}.brand-mark[data-astro-cid-ctg3m53h] i[data-astro-cid-ctg3m53h]{position:absolute;right:.05rem;top:.4rem;z-index:1;width:.65rem;height:.65rem;border:2px solid var(--surface-inverse);border-radius:50%;background:var(--text-on-inverse)}nav[data-astro-cid-ctg3m53h]{margin-left:auto}.nav-list[data-astro-cid-ctg3m53h]{display:flex;gap:clamp(.75rem,2vw,1.75rem);list-style:none;padding:0;margin:0}.nav-list[data-astro-cid-ctg3m53h] a[data-astro-cid-ctg3m53h]{position:relative;display:inline-flex;min-width:44px;min-height:44px;align-items:center;justify-content:center;color:var(--text-on-night-muted);font-size:.875rem;text-decoration:none}.nav-list[data-astro-cid-ctg3m53h] a[data-astro-cid-ctg3m53h]:after{position:absolute;right:.45rem;bottom:.35rem;left:.45rem;height:1px;background:var(--text-on-inverse);content:"";opacity:0;transform:scaleX(0);transition:opacity var(--motion-fast) var(--ease-out),transform var(--motion-fast) var(--ease-out)}.nav-list[data-astro-cid-ctg3m53h] a[data-astro-cid-ctg3m53h]:hover,.nav-list[data-astro-cid-ctg3m53h] a[data-astro-cid-ctg3m53h][aria-current=page]{color:var(--text-on-night)}.nav-list[data-astro-cid-ctg3m53h] a[data-astro-cid-ctg3m53h]:hover:after,.nav-list[data-astro-cid-ctg3m53h] a[data-astro-cid-ctg3m53h][aria-current=page]:after{opacity:1;transform:scaleX(1)}.header-cta[data-astro-cid-ctg3m53h]{display:none;min-height:44px;align-items:center;gap:.35rem;padding:.65rem .95rem;border:1px solid var(--text-on-inverse);background:var(--text-on-inverse);color:var(--text-primary);font-size:.8rem;font-weight:800;text-decoration:none}.header-cta[data-astro-cid-ctg3m53h]:hover{transform:translateY(-1px)}.header-cta[data-astro-cid-ctg3m53h].unavailable{border:1px solid var(--border-on-night-strong);background:transparent;color:var(--text-on-night-soft);cursor:default}@media(min-width:48rem){.header-cta[data-astro-cid-ctg3m53h]{display:inline-flex;align-items:center;gap:.35rem}}@media(max-width:26rem){.header-inner[data-astro-cid-ctg3m53h]{gap:.25rem}.brand[data-astro-cid-ctg3m53h]{gap:.35rem}.brand-mark[data-astro-cid-ctg3m53h]{width:1.6rem}.nav-list[data-astro-cid-ctg3m53h]{gap:0}}.skip-link[data-astro-cid-37fxchfa]{position:fixed;left:1rem;top:1rem;z-index:100;min-height:2.75rem;padding:.65rem .9rem;transform:translateY(-180%);background:var(--surface-page-raised);color:var(--text-primary);font-weight:800;text-decoration:none}.skip-link[data-astro-cid-37fxchfa]:focus{transform:translateY(0)}