.logo-mark[data-astro-cid-27oicc4y]{aspect-ratio:1;isolation:isolate;background:#fff;border:1px solid #347eb133;border-radius:50%;flex:none;place-items:center;display:inline-grid;position:relative;overflow:hidden;box-shadow:0 12px 32px #19466e1a}img[data-astro-cid-27oicc4y]{z-index:1;width:68%;height:auto;position:relative}.logo-mark--small[data-astro-cid-27oicc4y]{width:2.55rem}.logo-mark--medium[data-astro-cid-27oicc4y]{width:3rem}.logo-mark--hero[data-astro-cid-27oicc4y]{width:clamp(14rem,23vw,19rem);box-shadow:0 22px 60px #19466e1f, 0 0 0 .7rem var(--surface-subtle);border-color:#347eb13d}.brand[data-astro-cid-6bctqxxv]{color:var(--ink);align-items:center;gap:.68rem;text-decoration:none;display:inline-flex}.brand__copy[data-astro-cid-6bctqxxv]{gap:.08rem;line-height:1;display:grid}strong[data-astro-cid-6bctqxxv]{letter-spacing:.08em;font-size:1rem;font-weight:760}small[data-astro-cid-6bctqxxv]{color:var(--muted);font-family:var(--font-mono);font-size:var(--text-meta);letter-spacing:.14em}.brand--light[data-astro-cid-6bctqxxv]{color:var(--on-deep)}.brand--light[data-astro-cid-6bctqxxv] small[data-astro-cid-6bctqxxv]{color:var(--on-deep-muted)}@media (width<=420px){.brand[data-astro-cid-6bctqxxv]{gap:.5rem}strong[data-astro-cid-6bctqxxv]{font-size:.9rem}small[data-astro-cid-6bctqxxv]{display:none}}@media (width<=340px){.brand__copy[data-astro-cid-6bctqxxv]{display:none}}@layer reset{*,:before,:after{box-sizing:border-box}html{scroll-behavior:smooth;text-size-adjust:100%}body,h1,h2,h3,h4,p,figure,blockquote,dl,dd{margin:0}img,picture,svg{max-width:100%;display:block}img{height:auto}button,input,textarea,select{font:inherit}}@layer base{:root{color-scheme:light;--ink:#10213d;--ink-soft:#32445f;--muted:#64738a;--paper:#f7f9fc;--paper-deep:#edf3f8;--surface:#fff;--deep:#0b2c5a;--deep-soft:#143f70;--blue:#58afe5;--blue-700:#1f6f9f;--blue-300:#84caf1;--blue-100:#dff2fd;--blue-50:#eef8fe;--orange:#f28c3d;--orange-soft:#fff0e3;--orange-ink:#a65118;--red-soft-ink:#d97880;--purple-soft-ink:#9a82cf;--code-bg:#f1f2f4;--code-line-number:#a2a6ad;--code-language:#969ba3;--selection-bg:#dce4f0;--line:#dce5ee;--line-strong:#c8d6e3;--success:#2b9b72;--surface-subtle:#ffffffb8;--surface-card:#ffffffe0;--surface-overlay:#fffffffa;--header-glass:#f7f9fce6;--on-deep:#fff;--on-deep-muted:#ffffffa8;--footer-bg:#081f40;--action-bg:#0b2c5a;--action-text:#fff;--radius-sm:.75rem;--radius-md:1.15rem;--radius-lg:1.55rem;--radius-xl:2.25rem;--shadow-soft:0 22px 60px #1a3c601a;--shadow-card:0 14px 34px #1a3c6012;--text-meta:.75rem;--text-small:.875rem;--text-body:1rem;--text-lead:1.125rem;--text-page:clamp(2.25rem, 3.6vw, 3.25rem);--text-section:clamp(1.75rem, 2.5vw, 2.25rem);--text-feature:clamp(1.4rem, 2vw, 1.8rem);--text-card:clamp(1.05rem, 1.25vw, 1.25rem);--space-section:clamp(3.5rem, 6vw, 5.5rem);--space-section-compact:clamp(2.5rem, 4vw, 4rem);--tracking-heading:-.022em;--font-sans:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-mono:"SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace}:root[data-theme=dark]{color-scheme:dark;--ink:#eaf3fb;--ink-soft:#c4d2df;--muted:#99adbf;--paper:#071525;--paper-deep:#0a1d30;--surface:#0e2238;--deep:#061323;--deep-soft:#102c49;--blue:#63b9e8;--blue-700:#84cff3;--blue-300:#a5dcf6;--blue-100:#173d59;--blue-50:#102b41;--orange:#ff9a4d;--orange-soft:#3b2619;--orange-ink:#ffb77e;--red-soft-ink:#f0a0a7;--purple-soft-ink:#c5b1ed;--code-bg:#0d1722;--code-line-number:#6f7b88;--code-language:#8795a5;--selection-bg:#859bb857;--line:#243c52;--line-strong:#36516b;--success:#56c795;--surface-subtle:#0e2238c7;--surface-card:#0e2238e6;--surface-overlay:#0a1d30fa;--header-glass:#071525e6;--on-deep:#f4f8fc;--on-deep-muted:#eaf3fbad;--footer-bg:#050f1d;--action-bg:#69bfe9;--action-text:#061727;--shadow-soft:0 22px 60px #00000047;--shadow-card:0 14px 34px #0003}@media (prefers-color-scheme:dark){:root:not([data-theme]){color-scheme:dark;--ink:#eaf3fb;--ink-soft:#c4d2df;--muted:#99adbf;--paper:#071525;--paper-deep:#0a1d30;--surface:#0e2238;--deep:#061323;--deep-soft:#102c49;--blue:#63b9e8;--blue-700:#84cff3;--blue-300:#a5dcf6;--blue-100:#173d59;--blue-50:#102b41;--orange:#ff9a4d;--orange-soft:#3b2619;--orange-ink:#ffb77e;--red-soft-ink:#f0a0a7;--purple-soft-ink:#c5b1ed;--code-bg:#0d1722;--code-line-number:#6f7b88;--code-language:#8795a5;--selection-bg:#859bb857;--line:#243c52;--line-strong:#36516b;--surface-subtle:#0e2238c7;--surface-card:#0e2238e6;--surface-overlay:#0a1d30fa;--header-glass:#071525e6;--on-deep:#f4f8fc;--on-deep-muted:#eaf3fbad;--footer-bg:#050f1d;--action-bg:#69bfe9;--action-text:#061727}}body{background:var(--paper);min-width:320px;color:var(--ink);font-family:var(--font-sans);text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;font-size:1rem;line-height:1.6}body.menu-open{overflow:hidden}main{animation:.36s cubic-bezier(.22,1,.36,1) backwards zypc-page-in}@keyframes zypc-page-in{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}::selection{background:var(--selection-bg)}a{color:inherit}:focus-visible{outline-offset:3px;outline:3px solid #f28c3db8}.shell{width:min(100% - 3rem,1240px);margin-inline:auto}.site-header{z-index:100;border-bottom:1px solid #0000;transition:background .18s,border-color .18s,box-shadow .18s;position:fixed;top:0;left:0;right:0}.site-header.is-scrolled{border-bottom-color:var(--line);background:var(--header-glass);box-shadow:var(--shadow-card);backdrop-filter:blur(12px)}.site-header__inner{grid-template-columns:auto 1fr auto;align-items:center;gap:2rem;min-height:5.1rem;display:grid}.site-nav{justify-content:center;gap:clamp(.75rem,2vw,1.8rem);display:flex}.site-nav a{color:var(--ink-soft);padding:.45rem 0;font-size:.9375rem;text-decoration:none;position:relative}.site-nav a:after{background:var(--orange);content:"";transform-origin:0;height:2px;transition:transform .16s;position:absolute;bottom:0;left:0;right:0;transform:scaleX(0)}.site-nav a:hover,.site-nav a[aria-current=page]{color:var(--ink)}.site-nav a:hover:after,.site-nav a[aria-current=page]:after{transform:scaleX(1)}.header-coordinate{color:var(--muted);font-family:var(--font-mono);font-size:var(--text-meta);letter-spacing:.09em;align-items:center;gap:.6rem;text-decoration:none;display:flex}.header-coordinate i{border:2px solid var(--orange);border-radius:50%;width:.5rem;height:.5rem;display:block}.header-actions{align-items:center;gap:1rem;display:flex}.theme-toggle{border:1px solid var(--line);background:var(--surface-subtle);width:2.45rem;height:2.45rem;color:var(--ink-soft);cursor:pointer;border-radius:50%;place-items:center;padding:0;transition:border-color .16s,background .16s,color .16s,transform .16s;display:grid}.theme-toggle:hover{border-color:var(--blue);background:var(--blue-50);color:var(--blue-700);transform:translateY(-1px)}.theme-toggle svg{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.7px;width:1rem}.theme-toggle__moon,:root[data-theme=dark] .theme-toggle__sun{display:none}:root[data-theme=dark] .theme-toggle__moon{display:block}.menu-toggle{border:1px solid var(--line);background:var(--surface-subtle);cursor:pointer;border-radius:50%;width:2.65rem;height:2.65rem;padding:0;display:none}.menu-toggle i{background:var(--ink);width:1rem;height:1px;margin:.28rem auto;transition:transform .18s;display:block}.menu-toggle[aria-expanded=true] i:first-of-type{transform:translateY(.19rem)rotate(45deg)}.menu-toggle[aria-expanded=true] i:last-of-type{transform:translateY(-.19rem)rotate(-45deg)}.skip-link{z-index:999;background:var(--deep);color:var(--on-deep);border-radius:.5rem;padding:.75rem 1rem;text-decoration:none;position:fixed;top:.75rem;left:.75rem;transform:translateY(-150%)}.skip-link:focus{transform:translateY(0)}.eyebrow{color:var(--blue-700);font-family:var(--font-mono);font-size:var(--text-meta);letter-spacing:.16em;text-transform:uppercase;align-items:center;gap:.7rem;font-weight:700;display:flex}.eyebrow:before{content:"";background:currentColor;width:1.5rem;height:1px}.button{border:1px solid var(--action-bg);background:var(--action-bg);min-height:3.25rem;color:var(--action-text);font-size:var(--text-small);border-radius:999px;justify-content:center;align-items:center;gap:.7rem;padding:.82rem 1.2rem;font-weight:640;text-decoration:none;transition:background .18s,border-color .18s,color .18s,transform .18s;display:inline-flex}.button:hover{background:var(--blue-700);border-color:var(--blue-700);transform:translateY(-2px)}.button--ghost{border-color:var(--line-strong);background:var(--surface-subtle);color:var(--ink)}.button--ghost:hover{border-color:var(--blue);background:var(--blue-50);color:var(--ink)}.button--light{border-color:var(--on-deep);background:var(--on-deep);color:var(--deep)}.button--light:hover{border-color:var(--blue-100);background:var(--blue-100)}.site-footer{background:var(--footer-bg);color:var(--on-deep);padding:2.75rem 0 1.25rem}.site-footer__grid{grid-template-columns:2fr 1.2fr .8fr;gap:2.5rem;padding-bottom:2.25rem;display:grid}.site-footer__brand>p{max-width:26rem;color:var(--on-deep-muted);font-size:var(--text-small);margin-top:1rem}.site-footer__column{color:var(--on-deep-muted);font-size:var(--text-small);flex-direction:column;gap:.65rem;display:flex}.site-footer__column a{width:fit-content;text-decoration:none}.site-footer__column a:hover{color:var(--blue-300)}.site-footer__title{color:var(--blue-300);font-family:var(--font-mono);font-size:var(--text-meta);letter-spacing:.14em;margin-bottom:.5rem}.site-footer__bottom{color:var(--on-deep-muted);font-family:var(--font-mono);font-size:var(--text-meta);letter-spacing:.07em;border-top:1px solid #ffffff1f;justify-content:space-between;gap:1rem;padding-top:1.3rem;display:flex}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.empty-state{border:1px dashed var(--line-strong);border-radius:var(--radius-md);color:var(--muted);text-align:center;padding:2rem}.prose{max-width:48rem;color:var(--ink-soft);font-size:.98rem;line-height:1.9}.prose>*+*{margin-top:1.35rem}.prose h2,.prose h3{color:var(--ink);line-height:1.35}.prose h2{margin-top:3rem;font-size:1.6rem}.prose h3{margin-top:2.2rem;font-size:1.2rem}.prose a{color:var(--blue-700);text-underline-offset:.2em}.prose :where(p,li,blockquote,td,th) strong{box-decoration-break:clone;background-image:linear-gradient(to bottom, transparent 72%, var(--blue-100) 72%, var(--blue-100) 94%, transparent 94%);color:var(--ink);font-weight:680;text-decoration:none}.prose blockquote{border-left:3px solid var(--orange);background:var(--orange-soft);padding:1rem 1.25rem}.prose code{border:1px solid var(--line);background:var(--code-bg);font-family:var(--font-mono);border-radius:.35rem;padding:.15rem .35rem;font-size:.9em}.prose pre{min-width:0;max-width:100%;box-shadow:none;color:var(--ink);tab-size:4;-webkit-overflow-scrolling:touch;overscroll-behavior-inline:contain;scrollbar-color:var(--line-strong) transparent;scrollbar-width:thin;border:0;border-radius:.65rem;margin:1.35rem 0;padding:1.55rem 1rem 1rem;font-size:.88rem;line-height:1.55;position:relative;overflow-x:auto;background:var(--code-bg)!important}.prose pre:before{z-index:1;color:var(--code-language);content:attr(data-language);font-family:var(--font-mono);text-transform:lowercase;user-select:none;font-size:.72rem;font-weight:400;line-height:1;position:absolute;top:.42rem;right:.72rem}.prose .code-block-shell{min-width:0;max-width:100%;margin:1.35rem 0;position:relative}.prose .code-block-shell>pre{margin:0}.prose .code-block-shell>pre:before{content:none}.prose .code-copy-button{z-index:2;min-width:3rem;height:1.6rem;color:var(--code-language);cursor:pointer;font-family:var(--font-mono);white-space:nowrap;background:0 0;border:0;border-radius:.32rem;place-items:center;padding:0 .4rem;font-size:.72rem;font-weight:400;line-height:1;transition:background-color .15s,color .15s;display:grid;position:absolute;top:.22rem;right:.34rem}.prose .code-copy-button:hover,.prose .code-copy-button:focus-visible{background:color-mix(in srgb, var(--surface) 58%, transparent);color:var(--ink-soft)}.prose .code-copy-button:focus-visible{outline:2px solid var(--line-strong);outline-offset:1px}.prose .code-copy-button>span{pointer-events:none;grid-area:1/1;transition:opacity .12s}.prose .code-copy-button__action,.prose .code-copy-button:hover .code-copy-button__language,.prose .code-copy-button:focus-visible .code-copy-button__language,.prose .code-copy-button[data-copy-state] .code-copy-button__language{opacity:0}.prose .code-copy-button:hover .code-copy-button__action,.prose .code-copy-button:focus-visible .code-copy-button__action,.prose .code-copy-button[data-copy-state] .code-copy-button__action{opacity:1}.prose pre code{min-width:max-content;font-size:inherit;line-height:inherit;background:0 0;border:0;padding:0;display:block}.prose .astro-code span{background-color:#0000!important}.prose .astro-code .line:before{width:2.25ch;color:var(--code-line-number);content:attr(data-line);text-align:right;user-select:none;margin-right:1.15rem;font-weight:400;display:inline-block}:root .astro-code[style*=--shiki-light\:],:root .astro-code span[style*=--shiki-light\:]{color:var(--shiki-light)!important;font-style:var(--shiki-light-font-style,inherit)!important;font-weight:var(--shiki-light-font-weight,inherit)!important;text-decoration:var(--shiki-light-text-decoration,inherit)!important}:root[data-theme=dark] .astro-code,:root[data-theme=dark] .astro-code span{color:var(--shiki-dark,inherit)!important;font-style:var(--shiki-dark-font-style,inherit)!important;font-weight:var(--shiki-dark-font-weight,inherit)!important;text-decoration:var(--shiki-dark-text-decoration,inherit)!important}@media (prefers-color-scheme:dark){:root:not([data-theme]) .astro-code,:root:not([data-theme]) .astro-code span{color:var(--shiki-dark,inherit)!important;font-style:var(--shiki-dark-font-style,inherit)!important;font-weight:var(--shiki-dark-font-weight,inherit)!important;text-decoration:var(--shiki-dark-text-decoration,inherit)!important}}@media (prefers-reduced-motion:reduce){.prose .code-copy-button,.prose .code-copy-button>span{transition:none}}.reveal-ready [data-reveal]{opacity:0;transition:opacity .36s,transform .36s;transform:translateY(14px)}.reveal-ready [data-reveal].is-visible{opacity:1;transform:translateY(0)}}@layer utilities{@media (width<=1020px){.site-header__inner{justify-content:space-between;display:flex}.header-actions{margin-left:auto}.menu-toggle{display:block}.site-nav{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface-overlay);max-height:calc(100vh - 6.5rem);box-shadow:var(--shadow-soft);flex-direction:column;align-items:stretch;gap:0;padding:.75rem;display:none;position:fixed;top:5rem;left:1.5rem;right:1.5rem;overflow-y:auto}.site-nav.is-open{display:flex}.site-nav a{border-radius:.65rem;padding:.9rem 1rem}.site-nav a:hover,.site-nav a[aria-current=page]{background:var(--blue-50)}.site-nav a:after,.header-coordinate{display:none}}@media (width<=760px){.shell{width:min(100% - 2rem,1240px)}:root{--text-meta:.8125rem;--text-page:clamp(2rem, 9vw, 2.25rem);--text-section:clamp(1.55rem, 7vw, 1.8rem);--space-section:3.25rem;--space-section-compact:2.5rem}.site-footer{padding-top:2.25rem}.site-footer__grid{grid-template-columns:1fr;gap:1.5rem;padding-bottom:1.75rem}.site-footer__location-en{display:none}.site-footer__column--links{flex-flow:wrap;gap:.6rem 1.1rem}.site-footer__column--links .site-footer__title{width:100%}.site-footer__bottom{flex-wrap:wrap;justify-content:flex-start}.site-footer__bottom span:nth-child(2){display:none}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}main{animation:none!important}*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}.reveal-ready [data-reveal]{opacity:1;transform:none}}}