:root{--space:#080d1c;--space-2:#0b1226;--panel:#111b35;--panel-2:#16223f;--panel-3:#1c2a4a;--orbit:#344363;--orbit-dim:#223052;--orbit-faint:#1a2542;--gold:#dcc38b;--quantum:#9885ff;--glow:#76d8df;--alert:#e8785f;--text:#eaf0ff;--text-2:#a6b4d6;--text-3:#8391b5;--text-invert:#080d1c;--font-display:"Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Songti SC", "Source Han Serif SC", "Noto Serif CJK SC", serif;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;--font-mono:ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;--container:1240px;--gutter:clamp(20px, 4.5vw, 64px);--section-gap:clamp(56px, 7vw, 112px);--radius:4px;--radius-sm:2px;--step--1:clamp(.75rem, .73rem + .1vw, .81rem);--step-0:clamp(.92rem, .9rem + .12vw, 1rem);--step-1:clamp(1.08rem, 1.03rem + .26vw, 1.22rem);--step-2:clamp(1.3rem, 1.17rem + .62vw, 1.7rem);--step-3:clamp(1.7rem, 1.45rem + 1.2vw, 2.55rem);--step-4:clamp(2.2rem, 1.6rem + 2.9vw, 4rem);--step-5:clamp(2.9rem, 1.5rem + 5.6vw, 6.4rem);--ease:cubic-bezier(.2, .6, .3, 1);color-scheme:dark}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:92px}body{background:var(--space);color:var(--text);font-family:var(--font-sans);font-size:var(--step-0);font-feature-settings:"kern" 1;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;isolation:isolate;margin:0;line-height:1.75;position:relative;overflow-x:hidden}h1,h2,h3,h4{font-family:var(--font-display);letter-spacing:-.012em;text-wrap:balance;margin:0;font-weight:400;line-height:1.16}p{margin:0}ul,ol{margin:0;padding:0}a{color:inherit;text-decoration-color:var(--orbit);text-underline-offset:.28em;transition:color .18s var(--ease), text-decoration-color .18s var(--ease);text-decoration-thickness:1px}a:hover{color:var(--gold);text-decoration-color:var(--gold)}img,svg{max-width:100%;display:block}button,input,select{font:inherit;color:inherit}code{font-family:var(--font-mono)}::selection{background:var(--quantum);color:var(--text-invert)}:focus-visible{outline:2px solid var(--quantum);outline-offset:3px;border-radius:var(--radius-sm)}.wrap{width:100%;max-width:var(--container);padding-inline:var(--gutter);margin-inline:auto}.wrap--wide{max-width:1400px}.section{padding-block:var(--section-gap);position:relative}.rule{border:0;border-top:1px solid var(--orbit-dim);margin:0}.scale{border-bottom:1px solid var(--orbit-dim);background-image:repeating-linear-gradient(90deg, var(--orbit-dim) 0 1px, transparent 1px 72px);background-position:0 0;background-repeat:no-repeat;background-size:100% 5px;height:10px}.eyebrow{font-family:var(--font-mono);font-size:var(--step--1);letter-spacing:.2em;text-transform:uppercase;color:var(--text-3);align-items:center;gap:10px;margin:0;display:flex}.eyebrow--gold{color:var(--gold)}.eyebrow--quantum{color:var(--quantum)}.eyebrow--glow{color:var(--glow)}.index{font-family:var(--font-mono);letter-spacing:.14em;color:var(--text-3);border:1px solid var(--orbit-dim);border-radius:var(--radius-sm);white-space:nowrap;padding:2px 7px;font-size:.68rem}.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}.hex{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.04em;color:var(--text-2)}.hex b{color:var(--text-3);font-weight:400}.display{font-family:var(--font-display);font-size:var(--step-5);letter-spacing:-.03em;line-height:.98}.lede{font-size:var(--step-1);color:var(--text-2);max-width:46ch;line-height:1.72}.prose{color:var(--text-2);line-height:1.85}.prose strong{color:var(--text);font-weight:600}.section-head{grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:24px;margin-bottom:clamp(28px,3.4vw,48px);padding-bottom:18px;display:grid}.section-head__title{font-size:var(--step-3);margin-top:10px}.section-head__meta{font-family:var(--font-mono);font-size:var(--step--1);letter-spacing:.16em;text-transform:uppercase;color:var(--text-3);padding-bottom:6px}@media (width<=640px){.section-head{grid-template-columns:1fr;align-items:start;gap:10px}}.btn{border:1px solid var(--orbit);color:var(--text);font-size:var(--step--1);font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;cursor:pointer;border-radius:var(--radius-sm);transition:background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);background:0 0;align-items:center;gap:8px;padding:11px 20px;text-decoration:none;display:inline-flex}.btn:hover,.btn--solid{background:var(--gold);border-color:var(--gold);color:var(--text-invert)}.btn--solid:hover{background:var(--text);border-color:var(--text);border-color:var(--text);color:var(--text-invert)}.btn--ghost{border-color:var(--orbit-dim);color:var(--text-2)}.btn--ghost:hover{border-color:var(--gold);color:var(--gold);background:0 0}.btn--sm{padding:8px 14px;font-size:.68rem}.field{background:var(--panel);border:1px solid var(--orbit-dim);border-radius:var(--radius-sm);transition:border-color .18s var(--ease);align-items:center;gap:10px;padding:0 12px;display:flex}.field:focus-within{border-color:var(--quantum)}.field input{min-width:0;font-size:var(--step--1);background:0 0;border:0;outline:none;flex:1;padding:10px 0}.field input::placeholder{color:var(--text-3)}.field__icon{color:var(--text-3);flex:none}.tag{font-family:var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--text-3);border:1px solid var(--orbit-dim);border-radius:var(--radius-sm);white-space:nowrap;align-items:center;gap:6px;padding:3px 8px;font-size:.62rem;display:inline-flex}.tag--ok{color:var(--glow);border-color:color-mix(in srgb, var(--glow) 42%, transparent)}.tag--fan{color:var(--gold);border-color:color-mix(in srgb, var(--gold) 46%, transparent)}.tag--warn{color:var(--quantum);border-color:color-mix(in srgb, var(--quantum) 48%, transparent)}.tag__dot{background:currentColor;border-radius:50%;flex:none;width:6px;height:6px}.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}.skip-link{z-index:100;background:var(--gold);color:var(--text-invert);font-size:var(--step--1);transition:top .16s var(--ease);padding:10px 16px;text-decoration:none;position:absolute;top:-60px;left:12px}.skip-link:focus{top:12px}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{scroll-behavior:auto!important;transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}}.site-header[data-astro-cid-fzpbxy5g]{z-index:50;background:color-mix(in srgb, var(--space) 88%, transparent);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--orbit-faint);position:sticky;top:0}.site-header__inner[data-astro-cid-fzpbxy5g]{align-items:center;gap:clamp(12px,2.4vw,32px);min-height:66px;display:flex}.brand[data-astro-cid-fzpbxy5g]{flex:none;align-items:center;gap:10px;text-decoration:none;display:inline-flex}.brand__mark[data-astro-cid-fzpbxy5g]{width:26px;height:26px;color:var(--gold);flex:none}.brand[data-astro-cid-fzpbxy5g]:hover .brand__mark[data-astro-cid-fzpbxy5g]{color:var(--glow)}.brand__text[data-astro-cid-fzpbxy5g]{align-items:baseline;gap:8px;display:flex}.brand__name[data-astro-cid-fzpbxy5g]{font-family:var(--font-display);letter-spacing:-.01em;color:var(--text);font-size:1.16rem}.brand__zh[data-astro-cid-fzpbxy5g]{letter-spacing:.18em;color:var(--text-3);font-size:.64rem}.site-nav[data-astro-cid-fzpbxy5g]{flex:1;min-width:0}.site-nav[data-astro-cid-fzpbxy5g] ul[data-astro-cid-fzpbxy5g]{gap:clamp(12px,2vw,26px);list-style:none;display:flex}.site-nav__link[data-astro-cid-fzpbxy5g]{font-family:var(--font-mono);letter-spacing:.16em;text-transform:uppercase;color:var(--text-2);white-space:nowrap;border-bottom:1px solid #0000;align-items:baseline;gap:6px;padding-bottom:2px;font-size:.72rem;text-decoration:none;display:inline-flex}.site-nav__link[data-astro-cid-fzpbxy5g]:hover{color:var(--text);border-bottom-color:var(--orbit)}.site-nav__link[data-astro-cid-fzpbxy5g].is-active{color:var(--gold);border-bottom-color:var(--gold)}.site-header__tools[data-astro-cid-fzpbxy5g]{flex:none;align-items:center;gap:14px;display:flex}.catalog[data-astro-cid-fzpbxy5g]{letter-spacing:.18em;color:var(--text-3);border-right:1px solid var(--orbit-faint);align-items:baseline;gap:8px;margin:0;padding-right:14px;font-size:.62rem;display:flex}.catalog__value[data-astro-cid-fzpbxy5g]{color:var(--glow);letter-spacing:.1em;font-size:.78rem}.header-search[data-astro-cid-fzpbxy5g]{border-bottom:1px solid var(--orbit-dim);width:clamp(130px,14vw,190px);transition:border-color .18s var(--ease);align-items:center;gap:8px;padding:5px 2px;display:flex}.header-search[data-astro-cid-fzpbxy5g]:focus-within{border-bottom-color:var(--quantum)}.header-search[data-astro-cid-fzpbxy5g] input[data-astro-cid-fzpbxy5g]{background:0 0;border:0;outline:none;width:100%;padding:2px 0;font-size:.78rem}.header-search[data-astro-cid-fzpbxy5g] input[data-astro-cid-fzpbxy5g]::-webkit-search-cancel-button{-webkit-appearance:none}.lang[data-astro-cid-fzpbxy5g]{position:relative}.lang__button[data-astro-cid-fzpbxy5g]{border:1px solid var(--orbit-dim);border-radius:var(--radius-sm);height:34px;color:var(--text-2);cursor:pointer;transition:color .18s var(--ease), border-color .18s var(--ease), background .18s var(--ease);background:0 0;align-items:center;gap:7px;padding:0 9px;display:inline-flex}.lang__button[data-astro-cid-fzpbxy5g]:hover{color:var(--text);border-color:var(--orbit)}.lang[data-astro-cid-fzpbxy5g].is-open .lang__button[data-astro-cid-fzpbxy5g]{color:var(--gold);border-color:var(--gold);background:color-mix(in srgb, var(--gold) 10%, transparent)}.lang__globe[data-astro-cid-fzpbxy5g]{color:var(--text-3);flex:none}.lang[data-astro-cid-fzpbxy5g].is-open .lang__globe[data-astro-cid-fzpbxy5g]{color:var(--gold)}.lang__current[data-astro-cid-fzpbxy5g]{font-family:var(--font-mono);letter-spacing:.08em;white-space:nowrap;font-size:.7rem}.lang__short[data-astro-cid-fzpbxy5g]{font-family:var(--font-mono);letter-spacing:.08em;white-space:nowrap;font-size:.7rem;display:none}.lang__caret[data-astro-cid-fzpbxy5g]{opacity:.7;flex:none}.lang__menu[data-astro-cid-fzpbxy5g]{z-index:60;background:var(--panel);border:1px solid var(--orbit);border-radius:var(--radius);flex-direction:column;gap:2px;min-width:152px;padding:5px;display:flex;position:absolute;top:calc(100% + 8px);right:0;box-shadow:0 18px 40px #00000073}.lang__menu[data-astro-cid-fzpbxy5g][hidden]{display:none}.lang__option[data-astro-cid-fzpbxy5g]{border-radius:var(--radius-sm);font-family:var(--font-mono);letter-spacing:.08em;color:var(--text-2);transition:color .16s var(--ease), background .16s var(--ease);justify-content:space-between;align-items:center;gap:12px;padding:7px 9px;font-size:.74rem;text-decoration:none;display:flex}.lang__option[data-astro-cid-fzpbxy5g]:hover,.lang__option[data-astro-cid-fzpbxy5g]:focus-visible{color:var(--text);background:var(--panel-3)}.lang__option[data-astro-cid-fzpbxy5g].is-active{color:var(--gold)}.lang__check[data-astro-cid-fzpbxy5g]{color:var(--gold);display:inline-flex}.github[data-astro-cid-fzpbxy5g]{border:1px solid var(--orbit-dim);border-radius:var(--radius-sm);height:34px;color:var(--text-2);font-family:var(--font-mono);letter-spacing:.1em;white-space:nowrap;transition:color .18s var(--ease), border-color .18s var(--ease), background .18s var(--ease);align-items:center;gap:7px;padding:0 11px;font-size:.7rem;text-decoration:none;display:inline-flex}.github[data-astro-cid-fzpbxy5g]:hover{color:var(--text);border-color:var(--orbit);background:var(--panel)}.github__icon[data-astro-cid-fzpbxy5g]{flex:none}.menu-toggle[data-astro-cid-fzpbxy5g]{border:1px solid var(--orbit-dim);border-radius:var(--radius-sm);cursor:pointer;background:0 0;justify-content:center;align-items:center;width:38px;height:38px;display:none}.menu-toggle__bars[data-astro-cid-fzpbxy5g]{width:16px;display:block}.menu-toggle__bars[data-astro-cid-fzpbxy5g] i[data-astro-cid-fzpbxy5g]{background:var(--text-2);height:1.5px;margin:4px 0;display:block}.mobile-panel[data-astro-cid-fzpbxy5g]{border-top:1px solid var(--orbit-faint);background:var(--space-2);padding:18px 0 22px}.mobile-panel__nav[data-astro-cid-fzpbxy5g]{margin-top:14px;list-style:none}.mobile-panel__nav[data-astro-cid-fzpbxy5g] a[data-astro-cid-fzpbxy5g]{border-top:1px solid var(--orbit-faint);font-family:var(--font-mono);letter-spacing:.14em;text-transform:uppercase;justify-content:space-between;align-items:baseline;padding:11px 0;font-size:.8rem;text-decoration:none;display:flex}.mobile-panel__nav[data-astro-cid-fzpbxy5g] a[data-astro-cid-fzpbxy5g].is-active{color:var(--gold)}@media (width<=1180px){.catalog[data-astro-cid-fzpbxy5g]{display:none}}@media (width<=1020px){.header-search[data-astro-cid-fzpbxy5g]{display:none}}@media (width<=900px){.site-nav[data-astro-cid-fzpbxy5g]{display:none}.menu-toggle[data-astro-cid-fzpbxy5g]{display:inline-flex}}@media (width<=560px){.site-header__inner[data-astro-cid-fzpbxy5g]{gap:10px}.site-header__tools[data-astro-cid-fzpbxy5g]{gap:8px}.github[data-astro-cid-fzpbxy5g]{justify-content:center;width:38px;padding:0}.github__label[data-astro-cid-fzpbxy5g]{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.brand__zh[data-astro-cid-fzpbxy5g]{display:none}}@media (width<=430px){.lang__current[data-astro-cid-fzpbxy5g]{display:none}.lang__short[data-astro-cid-fzpbxy5g]{display:inline}}@media (width<=370px){.brand__text[data-astro-cid-fzpbxy5g]{display:none}}.site-footer[data-astro-cid-nns7i3if]{border-top:1px solid var(--orbit-faint);background:color-mix(in srgb, var(--space-2) 82%, transparent);-webkit-backdrop-filter:blur(10px);margin-top:clamp(56px,7vw,112px);padding-block:clamp(48px,6vw,88px) 32px}.site-footer__top[data-astro-cid-nns7i3if]{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:clamp(32px,5vw,80px);display:grid}.site-footer__pulse[data-astro-cid-nns7i3if]{background:var(--glow);width:6px;height:6px;box-shadow:0 0 0 3px color-mix(in srgb, var(--glow) 20%, transparent);border-radius:50%;flex:none}.site-footer__statement[data-astro-cid-nns7i3if]{font-family:var(--font-display);font-size:var(--step-3);color:var(--text);margin:16px 0 18px;line-height:1.1}.site-footer__blurb[data-astro-cid-nns7i3if]{color:var(--text-2);max-width:44ch;font-size:var(--step-0)}.site-footer__cols[data-astro-cid-nns7i3if]{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;display:grid}.site-footer__col[data-astro-cid-nns7i3if] ul[data-astro-cid-nns7i3if]{margin-top:14px;list-style:none}.site-footer__col[data-astro-cid-nns7i3if] li[data-astro-cid-nns7i3if]+li[data-astro-cid-nns7i3if]{margin-top:9px}.site-footer__col[data-astro-cid-nns7i3if] a[data-astro-cid-nns7i3if]{color:var(--text-2);font-size:var(--step--1);text-decoration:none}.site-footer__col[data-astro-cid-nns7i3if] a[data-astro-cid-nns7i3if]:hover{color:var(--gold)}.site-footer__ext[data-astro-cid-nns7i3if]{margin-left:3px;font-size:.7em}.site-footer__bottom[data-astro-cid-nns7i3if]{border-top:1px solid var(--orbit-faint);color:var(--text-3);letter-spacing:.04em;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:clamp(40px,5vw,72px);padding-top:18px;font-size:.7rem;display:flex}@media (width<=780px){.site-footer__top[data-astro-cid-nns7i3if]{grid-template-columns:1fr}}@media (width<=480px){.site-footer__cols[data-astro-cid-nns7i3if]{grid-template-columns:1fr}}.sky[data-astro-cid-5ygnjg7i]{z-index:0;pointer-events:none;position:fixed;inset:0;overflow:hidden}.sky__nebula[data-astro-cid-5ygnjg7i]{background:radial-gradient(58vw 46vw at 78% 8%, color-mix(in srgb, var(--quantum) 14%, transparent), transparent 68%), radial-gradient(52vw 40vw at 8% 82%, color-mix(in srgb, var(--glow) 10%, transparent), transparent 70%), radial-gradient(70vw 50vw at 50% 120%, color-mix(in srgb, var(--gold) 8%, transparent), transparent 72%);position:absolute;inset:0}.sky__svg[data-astro-cid-5ygnjg7i]{width:100%;height:100%;position:absolute;inset:0}.site-header,main,.site-footer{z-index:1;position:relative}
