:root{--color-bg:#fff;--color-bg-subtle:#f6f6f4;--color-bg-muted:#efefec;--color-text:#1a1a1a;--color-text-secondary:#52525b;--color-text-muted:#71717a;--color-brand:#b3232d;--color-brand-dark:#8f1c24;--color-brand-subtle:#fdf0f0;--color-success:#1d6b45;--color-success-subtle:#ecf7f1;--color-warning:#92610e;--color-warning-subtle:#fdf6e7;--color-danger:#a02c2c;--color-danger-subtle:#fbeeee;--color-info:#24547a;--color-info-subtle:#eef4f9;--color-border:#e4e4e0;--color-border-strong:#c9c9c4;--color-ink:#111;--color-ink-contrast:#fff;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;--font-mono:ui-monospace, SFMono-Regular, "Cascadia Code", Consolas, "Liberation Mono", Menlo, monospace;--text-xs:.75rem;--text-sm:.875rem;--text-base:1rem;--text-lg:1.125rem;--text-xl:1.25rem;--text-2xl:1.5rem;--text-3xl:1.875rem;--text-4xl:2.25rem;--leading-tight:1.3;--leading-normal:1.6;--leading-article:1.8;--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;--width-content:72rem;--width-article:46rem;--radius-sm:4px;--radius-md:6px;--shadow-card:0 1px 2px #1111110f;--shadow-card-hover:0 3px 10px #1111111a;--transition-fast:.15s ease}h1,h2,h3,h4,h5,h6{line-height:var(--leading-tight);color:var(--color-ink);overflow-wrap:break-word;margin-top:0;font-weight:700}h1{font-size:var(--text-3xl)}h2{font-size:var(--text-2xl)}h3{font-size:var(--text-xl)}h4{font-size:var(--text-lg)}@media (width>=768px){h1{font-size:var(--text-4xl)}}p{margin:0 0 var(--space-4)}code{font-family:var(--font-mono);background-color:var(--color-bg-muted);border-radius:var(--radius-sm);padding:.15em .4em;font-size:.9em}pre{color:#e6e6e6;padding:var(--space-4);border-radius:var(--radius-md);background-color:#17171a;line-height:1.6;overflow-x:auto}pre code{color:inherit;background:0 0;padding:0}blockquote{margin:var(--space-5) 0;padding:var(--space-3) var(--space-4);border-left:3px solid var(--color-brand);background-color:var(--color-bg-subtle);color:var(--color-text-secondary)}blockquote p:last-child{margin-bottom:0}.prose{font-size:var(--text-base);line-height:var(--leading-article);max-width:var(--width-article)}.prose>*+*{margin-top:var(--space-4)}.prose h2{margin-top:var(--space-7);padding-bottom:var(--space-2);border-bottom:1px solid var(--color-border)}.prose h3{margin-top:var(--space-6)}.prose h4{margin-top:var(--space-5)}.prose ul,.prose ol{padding-left:1.5em}.prose li{margin-bottom:var(--space-2)}.prose li>ul,.prose li>ol{margin-top:var(--space-2)}.prose table{-webkit-overflow-scrolling:touch;font-size:var(--text-sm);display:block;overflow-x:auto}@media (width>=768px){.prose table{font-size:var(--text-base);display:table}}.prose img{border-radius:var(--radius-md);border:1px solid var(--color-border)}.container{width:100%;max-width:var(--width-content);padding-inline:var(--space-4);margin-inline:auto}@media (width>=768px){.container{padding-inline:var(--space-5)}}.visually-hidden{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.section{margin-block:var(--space-7)}.section-header{justify-content:space-between;align-items:baseline;gap:var(--space-4);margin-bottom:var(--space-5);flex-wrap:wrap;display:flex}.section-header h2{padding-left:var(--space-3);border-left:4px solid var(--color-brand);margin:0}.section-header .section-more{font-size:var(--text-sm);white-space:nowrap}.card-grid{gap:var(--space-4);grid-template-columns:1fr;display:grid}@media (width>=640px){.card-grid{grid-template-columns:repeat(2,1fr)}}@media (width>=1024px){.card-grid{grid-template-columns:repeat(3,1fr)}.card-grid--two{grid-template-columns:repeat(2,1fr)}.card-grid--four{grid-template-columns:repeat(4,1fr)}}.btn{padding:var(--space-3) var(--space-5);border-radius:var(--radius-md);font-weight:600;font-size:var(--text-base);text-align:center;border:1px solid #0000;display:inline-block}.btn:hover{text-decoration:none}.btn--primary{background-color:var(--color-brand);color:var(--color-ink-contrast)}.btn--primary:hover{background-color:var(--color-brand-dark);color:var(--color-ink-contrast)}.btn--secondary{background-color:var(--color-ink);color:var(--color-ink-contrast)}.btn--secondary:hover{color:var(--color-ink-contrast);background-color:#2c2c2c}.btn--outline{border-color:var(--color-border-strong);color:var(--color-text);background:var(--color-bg)}.btn--outline:hover{border-color:var(--color-ink);color:var(--color-ink)}.table-scroll{-webkit-overflow-scrolling:touch;border:1px solid var(--color-border);border-radius:var(--radius-md);overflow-x:auto}.table-scroll table{min-width:40rem}.table-scroll th,.table-scroll td{border-left:0;border-right:0}.text-muted{color:var(--color-text-muted)}.text-sm{font-size:var(--text-sm)}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{font-family:var(--font-sans);font-size:var(--text-base);line-height:var(--leading-normal);color:var(--color-text);background-color:var(--color-bg);-webkit-font-smoothing:antialiased;margin:0}img,svg,video{max-width:100%;height:auto;display:block}a{color:var(--color-brand);transition:color var(--transition-fast);text-decoration:none}a:hover{color:var(--color-brand-dark);text-decoration:underline}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--color-brand);outline-offset:2px;border-radius:var(--radius-sm)}button{cursor:pointer;font-family:inherit}table{border-collapse:collapse;width:100%}th,td{border:1px solid var(--color-border);padding:var(--space-2) var(--space-3);text-align:left;vertical-align:top}th{background-color:var(--color-bg-subtle);font-weight:600}hr{border:0;border-top:1px solid var(--color-border);margin:var(--space-6) 0}::selection{background-color:var(--color-brand);color:var(--color-ink-contrast)}.skip-link{z-index:999;padding:var(--space-2) var(--space-4);background:var(--color-ink);color:var(--color-ink-contrast);border-radius:0 0 var(--radius-md) 0;position:absolute;top:0;left:-9999px}.skip-link:focus{left:0}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.site-header[data-astro-cid-vwn3tmth]{border-bottom:1px solid var(--color-border);background:var(--color-bg);z-index:50;position:sticky;top:0}.header-inner[data-astro-cid-vwn3tmth]{justify-content:space-between;align-items:center;gap:var(--space-4);min-height:3.75rem;display:flex}.brand[data-astro-cid-vwn3tmth]{align-items:center;gap:var(--space-2);color:var(--color-ink);flex-shrink:0;display:flex}.brand[data-astro-cid-vwn3tmth]:hover{color:var(--color-ink);text-decoration:none}.brand-text[data-astro-cid-vwn3tmth]{flex-direction:column;line-height:1.15;display:flex}.brand-name[data-astro-cid-vwn3tmth]{font-weight:700;font-size:var(--text-lg)}.brand-en[data-astro-cid-vwn3tmth]{color:var(--color-text-muted);letter-spacing:.06em;text-transform:uppercase;font-size:.65rem}.desktop-nav[data-astro-cid-vwn3tmth]{display:none}.desktop-nav[data-astro-cid-vwn3tmth] ul[data-astro-cid-vwn3tmth]{gap:var(--space-1);flex-wrap:wrap;margin:0;padding:0;list-style:none;display:flex}.desktop-nav[data-astro-cid-vwn3tmth] a[data-astro-cid-vwn3tmth]{padding:var(--space-2) var(--space-3);color:var(--color-text-secondary);border-radius:var(--radius-sm);font-weight:500;font-size:var(--text-sm);display:block}.desktop-nav[data-astro-cid-vwn3tmth] a[data-astro-cid-vwn3tmth]:hover{color:var(--color-ink);background:var(--color-bg-subtle);text-decoration:none}.desktop-nav[data-astro-cid-vwn3tmth] a[data-astro-cid-vwn3tmth].active{color:var(--color-brand);font-weight:600}.mobile-nav[data-astro-cid-vwn3tmth]{position:relative}.mobile-nav[data-astro-cid-vwn3tmth] summary[data-astro-cid-vwn3tmth]{align-items:center;gap:var(--space-2);cursor:pointer;padding:var(--space-2) var(--space-3);border:1px solid var(--color-border-strong);border-radius:var(--radius-md);font-size:var(--text-sm);user-select:none;font-weight:600;list-style:none;display:flex}.mobile-nav[data-astro-cid-vwn3tmth] summary[data-astro-cid-vwn3tmth]::-webkit-details-marker{display:none}.menu-icon[data-astro-cid-vwn3tmth],.menu-icon[data-astro-cid-vwn3tmth]:before,.menu-icon[data-astro-cid-vwn3tmth]:after{background:var(--color-ink);content:"";width:16px;height:2px;display:block;position:relative}.menu-icon[data-astro-cid-vwn3tmth]:before{position:absolute;top:-5px}.menu-icon[data-astro-cid-vwn3tmth]:after{position:absolute;top:5px}.mobile-nav[data-astro-cid-vwn3tmth][open] summary[data-astro-cid-vwn3tmth]{border-color:var(--color-brand);color:var(--color-brand)}.mobile-nav[data-astro-cid-vwn3tmth] nav[data-astro-cid-vwn3tmth]{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-card-hover);z-index:60;min-width:11rem;position:absolute;top:calc(100% + .5rem);right:0}.mobile-nav[data-astro-cid-vwn3tmth] ul[data-astro-cid-vwn3tmth]{padding:var(--space-2);margin:0;list-style:none}.mobile-nav[data-astro-cid-vwn3tmth] nav[data-astro-cid-vwn3tmth] a[data-astro-cid-vwn3tmth]{padding:var(--space-2) var(--space-3);color:var(--color-text);border-radius:var(--radius-sm);font-size:var(--text-sm);display:block}.mobile-nav[data-astro-cid-vwn3tmth] nav[data-astro-cid-vwn3tmth] a[data-astro-cid-vwn3tmth]:hover{background:var(--color-bg-subtle);text-decoration:none}.mobile-nav[data-astro-cid-vwn3tmth] nav[data-astro-cid-vwn3tmth] a[data-astro-cid-vwn3tmth][aria-current=page]{color:var(--color-brand);font-weight:600}@media (width>=900px){.desktop-nav[data-astro-cid-vwn3tmth]{display:block}.mobile-nav[data-astro-cid-vwn3tmth]{display:none}}.site-footer[data-astro-cid-qup6pdxl]{margin-top:var(--space-8);border-top:1px solid var(--color-border);background:var(--color-bg-subtle);padding-block:var(--space-7) var(--space-5);font-size:var(--text-sm)}.footer-grid[data-astro-cid-qup6pdxl]{gap:var(--space-6);grid-template-columns:1fr;display:grid}@media (width>=640px){.footer-grid[data-astro-cid-qup6pdxl]{grid-template-columns:repeat(2,1fr)}}@media (width>=1024px){.footer-grid[data-astro-cid-qup6pdxl]{grid-template-columns:1.4fr repeat(3,1fr)}}.footer-logo[data-astro-cid-qup6pdxl]{font-size:var(--text-xl);color:var(--color-ink);margin-bottom:var(--space-1);font-weight:700}.footer-en[data-astro-cid-qup6pdxl]{color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.06em;font-size:var(--text-xs);margin-bottom:var(--space-3)}.footer-tagline[data-astro-cid-qup6pdxl]{color:var(--color-text-secondary);max-width:26rem}.footer-title[data-astro-cid-qup6pdxl]{color:var(--color-ink);margin-bottom:var(--space-3);font-weight:700}.site-footer[data-astro-cid-qup6pdxl] ul[data-astro-cid-qup6pdxl]{margin:0;padding:0;list-style:none}.site-footer[data-astro-cid-qup6pdxl] li[data-astro-cid-qup6pdxl]{margin-bottom:var(--space-2)}.site-footer[data-astro-cid-qup6pdxl] nav[data-astro-cid-qup6pdxl] a[data-astro-cid-qup6pdxl]{color:var(--color-text-secondary)}.site-footer[data-astro-cid-qup6pdxl] nav[data-astro-cid-qup6pdxl] a[data-astro-cid-qup6pdxl]:hover{color:var(--color-brand)}.footer-bottom[data-astro-cid-qup6pdxl]{margin-top:var(--space-6);padding-top:var(--space-4);border-top:1px solid var(--color-border);color:var(--color-text-muted)}.footer-note[data-astro-cid-qup6pdxl]{margin-top:var(--space-1);font-size:var(--text-xs)}