.lang-switcher-module__wrapper__2dTZM{position:relative}.lang-switcher-module__trigger__qCwqa{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);font-size:var(--text-sm);color:var(--color-ink-muted);border-radius:var(--radius-md);transition:background var(--duration-fast) var(--ease-out-expo)}.lang-switcher-module__trigger__qCwqa:hover{background:var(--color-surface);color:var(--color-ink)}.lang-switcher-module__menu__ob26U{position:absolute;right:0;top:calc(100% + var(--space-2));list-style:none;background:var(--color-surface-raised);border:1px solid var(--color-rule);border-radius:var(--radius-md);box-shadow:var(--shadow-md);min-width:10rem;overflow:hidden;z-index:var(--z-overlay)}.lang-switcher-module__option__JcVe0{display:block;width:100%;text-align:left;padding:var(--space-2) var(--space-4);font-size:var(--text-sm);color:var(--color-ink-muted);transition:background var(--duration-fast) var(--ease-out-expo)}.lang-switcher-module__option__JcVe0:hover{background:var(--color-bg);color:var(--color-ink)}.lang-switcher-module__active__hdYie{color:var(--color-accent);font-weight:600}.site-header-module__header__J-MjU{position:sticky;top:0;z-index:var(--z-nav);background:color-mix(in oklch,var(--color-bg) 88%,transparent);-webkit-backdrop-filter:saturate(180%) blur(12px);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--color-rule)}.site-header-module__inner__xZRxL{display:flex;align-items:center;justify-content:space-between;gap:var(--space-6);padding-block:var(--space-4)}.site-header-module__brand__kuMR-{display:inline-flex;align-items:baseline;gap:var(--space-2);font-family:var(--font-display);font-size:var(--text-lg);color:var(--color-ink);letter-spacing:var(--tracking-tight);transition:color var(--duration-fast) var(--ease-out-expo)}.site-header-module__brandMark__2-sL6{color:var(--color-accent);font-size:.8em;display:inline-block;transition:transform var(--duration-normal) var(--ease-out-expo),color var(--duration-fast) var(--ease-out-expo);transform-origin:center}.site-header-module__brandName__gE0P2{font-weight:500;position:relative}.site-header-module__brandName__gE0P2:after{content:"";position:absolute;inset-inline:0;bottom:-3px;height:1px;background:var(--color-ink);transform:scaleX(0);transform-origin:left center;transition:transform var(--duration-normal) var(--ease-out-expo)}.site-header-module__brand__kuMR-:hover .site-header-module__brandMark__2-sL6{transform:rotate(45deg)}.site-header-module__brand__kuMR-:hover .site-header-module__brandName__gE0P2:after{transform:scaleX(1)}.site-header-module__brand__kuMR-:focus-visible{outline:none}.site-header-module__brand__kuMR-:focus-visible .site-header-module__brandName__gE0P2:after{transform:scaleX(1);background:var(--color-focus-ring)}.site-header-module__nav__Gub-s{flex:1;display:flex;justify-content:center}.site-header-module__navList__hpJOA{display:flex;gap:var(--space-6);list-style:none}.site-header-module__navLink__sx2X8{position:relative;display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-2) 0;font-size:var(--text-sm);color:var(--color-ink-muted);transition:color var(--duration-fast) var(--ease-out-expo)}.site-header-module__navLink__sx2X8:hover,.site-header-module__navLinkActive__5loxd{color:var(--color-ink)}.site-header-module__navLinkActive__5loxd:after{content:"";position:absolute;inset-inline:0;bottom:-2px;height:1px;background:var(--color-accent)}.site-header-module__navBadge__rQkLL{font-size:.65rem;letter-spacing:var(--tracking-wide);text-transform:uppercase;color:var(--color-highlight);background:var(--color-highlight-soft);padding:2px var(--space-2);border-radius:var(--radius-sm);font-weight:600}.site-header-module__actions__dLpTp{display:flex;align-items:center;gap:var(--space-2)}.site-header-module__burger__6kgWH{display:none;width:2.25rem;height:2.25rem;padding:0;justify-content:center;align-items:center;flex-direction:column;gap:5px}.site-header-module__burgerBar__yydma{display:block;width:18px;height:1.5px;background:var(--color-ink);transition:transform var(--duration-fast) var(--ease-out-expo);transform-origin:center}.site-header-module__burgerBarOpen__waY5d:nth-child(1){transform:translateY(3.25px) rotate(45deg)}.site-header-module__burgerBarOpen__waY5d:nth-child(2){transform:translateY(-3.25px) rotate(-45deg)}.site-header-module__mobilePanel__qz-va{display:none;border-top:1px solid var(--color-rule);background:var(--color-bg)}.site-header-module__mobileNav__Sf-BM{padding:var(--space-4) var(--gutter)}.site-header-module__mobileList__iARV-{list-style:none;display:grid;gap:var(--space-2)}.site-header-module__mobileLink__21er2{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4);font-family:var(--font-display);font-size:var(--text-xl);color:var(--color-ink);border-bottom:1px solid var(--color-rule)}.site-header-module__mobileLink__21er2:last-child{border-bottom:none}.site-header-module__mobileLinkActive__eb27g{color:var(--color-accent)}@media(max-width:768px){.site-header-module__nav__Gub-s{display:none}.site-header-module__burger__6kgWH{display:inline-flex}.site-header-module__mobilePanel__qz-va{display:block}}.site-footer-module__footer__0LNMh{margin-top:var(--space-section);border-top:1px solid var(--color-rule);padding-block:var(--space-12)}.site-footer-module__inner__GQKQ8{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:var(--space-4)}.site-footer-module__tagline__DZHE1{font-family:var(--font-display);font-size:var(--text-lg);color:var(--color-ink);font-style:italic}.site-footer-module__rights__XduOJ{font-size:var(--text-sm);color:var(--color-ink-subtle)}:root{--color-bg: oklch(97% .01 90);--color-surface: oklch(99% .005 90);--color-surface-raised: oklch(100% 0 0);--color-rule: oklch(90% .01 90);--color-ink: oklch(22% .02 260);--color-ink-muted: oklch(42% .02 260);--color-ink-subtle: oklch(60% .01 260);--color-accent: oklch(42% .1 155);--color-accent-soft: oklch(82% .06 155);--color-highlight: oklch(72% .12 75);--color-highlight-soft: oklch(92% .06 75);--color-focus-ring: oklch(55% .15 250);--color-danger: oklch(55% .2 25);--font-display: "Fraunces", "Source Han Serif SC", "Noto Serif SC", "Songti SC", ui-serif, Georgia, serif;--font-body: "Inter", -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;--text-xs: clamp(.75rem, .72rem + .1vw, .8125rem);--text-sm: clamp(.875rem, .85rem + .15vw, .9375rem);--text-base: clamp(1rem, .95rem + .25vw, 1.125rem);--text-lg: clamp(1.125rem, 1.05rem + .4vw, 1.375rem);--text-xl: clamp(1.375rem, 1.2rem + .6vw, 1.75rem);--text-2xl: clamp(1.75rem, 1.4rem + 1.2vw, 2.5rem);--text-3xl: clamp(2.25rem, 1.6rem + 2.4vw, 3.5rem);--text-hero: clamp(3rem, 1.4rem + 5.5vw, 6.5rem);--leading-tight: 1.1;--leading-snug: 1.25;--leading-normal: 1.55;--leading-loose: 1.75;--tracking-tight: -.02em;--tracking-normal: 0;--tracking-wide: .04em;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-7: 1.75rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-14: 3.5rem;--space-16: 4rem;--space-20: 5rem;--space-24: 6rem;--space-section: clamp(4rem, 3rem + 5vw, 8rem);--radius-sm: .25rem;--radius-md: .5rem;--radius-lg: .875rem;--radius-xl: 1.5rem;--shadow-sm: 0 1px 2px rgb(0 0 0 / .04);--shadow-md: 0 4px 12px rgb(0 0 0 / .06);--shadow-lg: 0 12px 32px rgb(0 0 0 / .08);--duration-fast: .15s;--duration-normal: .3s;--duration-slow: .6s;--ease-out-expo: cubic-bezier(.16, 1, .3, 1);--ease-in-out-quad: cubic-bezier(.45, 0, .55, 1);--container-narrow: 42rem;--container-reading: 56rem;--container-wide: 72rem;--container-full: 90rem;--gutter: clamp(1rem, .6rem + 2vw, 2.5rem);--z-nav: 100;--z-overlay: 200;--z-modal: 300}@media(prefers-reduced-motion:reduce){:root{--duration-fast: 0ms;--duration-normal: 0ms;--duration-slow: 0ms}}*,*:before,*:after{box-sizing:border-box}*{margin:0;padding:0}html,body{height:100%}html{-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%;text-size-adjust:100%}body{line-height:var(--leading-normal);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizelegibility}img,picture,video,canvas,svg{display:block;max-width:100%;height:auto}input,button,textarea,select{font:inherit;color:inherit}p,h1,h2,h3,h4,h5,h6{overflow-wrap:break-word}#app{isolation:isolate;min-height:100dvh}a{color:inherit;text-decoration:none}button{background:none;border:none;cursor:pointer}:focus-visible{outline:2px solid var(--color-focus-ring);outline-offset:3px;border-radius:2px}body{font-family:var(--font-body);font-size:var(--text-base);color:var(--color-ink);background:var(--color-bg);font-feature-settings:"kern" 1,"liga" 1}h1,h2,h3,h4{font-family:var(--font-display);font-weight:500;letter-spacing:var(--tracking-tight);line-height:var(--leading-tight);color:var(--color-ink)}h1{font-size:var(--text-hero);font-weight:420}h2{font-size:var(--text-3xl)}h3{font-size:var(--text-2xl)}h4{font-size:var(--text-xl)}h5,h6{font-family:var(--font-body);font-weight:600;font-size:var(--text-base);letter-spacing:var(--tracking-wide);text-transform:uppercase;color:var(--color-ink-muted)}p{line-height:var(--leading-normal);color:var(--color-ink-muted)}:lang(zh) h1,:lang(zh) h2,:lang(zh) h3,:lang(zh) h4{letter-spacing:0;font-weight:500}small{font-size:var(--text-sm);color:var(--color-ink-subtle)}.container{width:100%;max-width:var(--container-wide);margin-inline:auto;padding-inline:var(--gutter)}.container-narrow{max-width:var(--container-narrow)}.container-reading{max-width:var(--container-reading)}.container-full{max-width:var(--container-full)}.paper-grain:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;opacity:.35;mix-blend-mode:multiply;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160' viewBox='0 0 160 160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.15 0 0 0 0 0.12 0 0 0 0 0.08 0 0 0 0.35 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>")}.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}