:root{--bg: #ffffff;--bg-soft: #f6f7f9;--bg-mute: #eceef2;--bg-code: #f6f7f9;--border: #e2e5ea;--border-strong: #cfd4dc;--text-1: #1c2130;--text-2: #4b5265;--text-3: #666e80;--accent: #4f46e5;--accent-strong: #4338ca;--accent-soft: rgba(79, 70, 229, .09);--accent-contrast: #ffffff;--warning-bg: #fdf4e3;--warning-border: #e8b64c;--warning-text: #7a5410;--info-bg: rgba(79, 70, 229, .07);--info-border: #4f46e5;--tip-bg: #e8f6ee;--tip-border: #2f9e5f;--tip-text: #1c6b3f;--shadow: 0 1px 3px rgba(15, 20, 40, .06), 0 8px 24px rgba(15, 20, 40, .07);--topbar-h: 60px;--sidebar-w: 268px;--toc-w: 220px;--content-w: 46rem;--radius: 8px;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;color-scheme:light}:root[data-theme=dark]{--bg: #15181f;--bg-soft: #1b1f28;--bg-mute: #232834;--bg-code: #11141a;--border: #2a303c;--border-strong: #3a4150;--text-1: #e8eaf0;--text-2: #a8afc0;--text-3: #828a9d;--accent: #8b93f8;--accent-strong: #a5abfa;--accent-soft: rgba(139, 147, 248, .13);--accent-contrast: #14162a;--warning-bg: rgba(232, 182, 76, .1);--warning-border: #d3a446;--warning-text: #ecc885;--info-bg: rgba(139, 147, 248, .1);--info-border: #8b93f8;--tip-bg: rgba(63, 185, 116, .1);--tip-border: #3fb974;--tip-text: #8fd9ae;--shadow: 0 1px 3px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .45);color-scheme:dark}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--topbar-h) + 24px)}body{margin:0;font-family:var(--font-sans);font-size:16px;line-height:1.65;color:var(--text-1);background:var(--bg);transition:background-color .25s ease,color .25s ease;-webkit-font-smoothing:antialiased}img{max-width:100%}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-strong)}button{font:inherit;color:inherit}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}.skip-link{position:fixed;top:10px;left:10px;z-index:100;padding:10px 16px;border-radius:8px;background:var(--accent);color:var(--accent-contrast);font-weight:600;transform:translateY(calc(-100% - 20px))}.skip-link:focus{transform:none}main:focus,.sidebar:focus{outline:none}::selection{background:color-mix(in srgb,var(--accent) 28%,var(--bg))}.topbar{position:fixed;inset:0 0 auto 0;z-index:50;height:var(--topbar-h);display:flex;align-items:center;gap:16px;padding:0 20px;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--border);transition:background-color .25s ease,border-color .25s ease}.topbar__brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.02rem;color:var(--text-1);letter-spacing:-.01em;white-space:nowrap}.topbar__brand:hover{color:var(--text-1)}.topbar__logo{width:28px;height:28px;border-radius:7px;flex:none}.topbar__badge{font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--accent);background:var(--accent-soft);padding:2px 7px;border-radius:99px}.topbar__spacer{flex:1}.topbar__nav{display:flex;align-items:center;gap:4px}.topbar__link{padding:6px 12px;border-radius:6px;font-size:.92rem;font-weight:500;color:var(--text-2)}.topbar__link:hover,.topbar__link.router-link-active,.topbar__link--active{color:var(--text-1);background:var(--bg-mute)}.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border:none;border-radius:8px;background:transparent;color:var(--text-2);cursor:pointer;transition:background-color .15s ease,color .15s ease}.icon-btn:hover{background:var(--bg-mute);color:var(--text-1)}.hamburger{display:none}.search{position:relative}.search__input-wrap{display:flex;align-items:center;gap:8px;height:36px;padding:0 10px;width:240px;border:1px solid var(--border);border-radius:8px;background:var(--bg-soft);color:var(--text-3);transition:border-color .15s ease,background-color .25s ease}.search__input-wrap:focus-within{border-color:var(--accent);outline:2px solid var(--accent);outline-offset:2px}.search__input{flex:1;min-width:0;border:none;background:transparent;color:var(--text-1);font-size:.9rem;outline:none}.search__input::placeholder{color:var(--text-3)}.search__kbd{font-family:var(--font-mono);font-size:.7rem;color:var(--text-3);border:1px solid var(--border-strong);border-radius:4px;padding:1px 5px;background:var(--bg);white-space:nowrap}.search__results{position:absolute;top:calc(100% + 8px);right:0;width:340px;max-height:380px;overflow-y:auto;background:var(--bg);border:1px solid 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ease}.sidebar__section{margin-bottom:22px}.sidebar__title{font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--text-1);margin:0 0 8px;padding:0 10px}.sidebar__list{list-style:none;margin:0;padding:0}.sidebar__link{display:block;padding:6px 10px;border-radius:7px;font-size:.9rem;color:var(--text-2);transition:background-color .15s ease,color .15s ease}.sidebar__link:hover{color:var(--text-1);background:var(--bg-mute)}.sidebar__link.router-link-active{color:var(--accent);background:var(--accent-soft);font-weight:600}.sidebar-backdrop{display:none}.doc-main{flex:1;min-width:0;padding:40px 48px 64px}.doc-content{max-width:var(--content-w);margin:0 auto}.toc{position:sticky;top:var(--topbar-h);flex:none;width:var(--toc-w);height:calc(100vh - var(--topbar-h));overflow-y:auto;padding:40px 24px 40px 0;font-size:.83rem}.toc__title{font-weight:700;font-size:.78rem;text-transform:uppercase;letter-spacing:.07em;color:var(--text-1);margin:0 0 10px}.toc__list{list-style:none;margin:0;padding:0;border-left:1px solid var(--border)}.toc__link{display:block;padding:4px 0 4px 14px;margin-left:-1px;border-left:2px solid transparent;color:var(--text-3);transition:color .15s ease,border-color .15s ease}.toc__link:hover{color:var(--text-1)}.toc__link--active{color:var(--accent);border-left-color:var(--accent);font-weight:600}.doc-content h1{font-size:2.1rem;line-height:1.25;letter-spacing:-.02em;font-weight:800;margin:0 0 12px}.doc-content .lead{font-size:1.08rem;color:var(--text-2);margin:0 0 28px}.doc-content h2{font-size:1.42rem;letter-spacing:-.015em;font-weight:700;margin:44px 0 14px;padding-top:18px;border-top:1px solid var(--border)}.doc-content h3{font-size:1.12rem;font-weight:650;margin:28px 0 10px}.doc-content p{margin:0 0 16px;color:var(--text-1)}.doc-content ul,.doc-content ol{margin:0 0 16px;padding-left:1.4rem;color:var(--text-1)}.doc-content li{margin-bottom:6px}.doc-content li::marker{color:var(--text-3)}.doc-content code{font-family:var(--font-mono);font-size:.86em;background:var(--bg-mute);border-radius:5px;padding:2px 6px}.doc-content table{width:100%;border-collapse:collapse;font-size:.9rem;margin:0 0 20px;display:block;overflow-x:auto}.doc-content th,.doc-content td{text-align:left;padding:8px 12px;border:1px solid var(--border)}.doc-content th{background:var(--bg-soft);font-weight:600}.anchor-heading{position:relative}.anchor-heading a.anchor{color:var(--accent);opacity:0;margin-left:8px;font-weight:500;transition:opacity .15s ease}.anchor-heading:hover a.anchor{opacity:1}.code-block{margin:0 0 20px;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--bg-code);transition:background-color .25s ease,border-color .25s ease}.code-block__header{display:flex;align-items:center;justify-content:space-between;padding:6px 8px 6px 14px;border-bottom:1px solid 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p{margin:0}.callout__body p+p{margin-top:8px}.callout--info{background:var(--info-bg);border-color:color-mix(in srgb,var(--info-border) 35%,transparent)}.callout--info .callout__icon,.callout--info .callout__title{color:var(--accent)}.callout--warning{background:var(--warning-bg);border-color:color-mix(in srgb,var(--warning-border) 45%,transparent)}.callout--warning .callout__icon,.callout--warning .callout__title{color:var(--warning-text)}.callout--tip{background:var(--tip-bg);border-color:color-mix(in srgb,var(--tip-border) 40%,transparent)}.callout--tip .callout__icon,.callout--tip .callout__title{color:var(--tip-text)}.prev-next{max-width:var(--content-w);margin:48px auto 0;display:grid;grid-template-columns:1fr 1fr;gap:14px}.prev-next__card{display:flex;flex-direction:column;gap:3px;padding:14px 16px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg);transition:border-color .15s ease,background-color .25s 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ease}.home-card:hover{border-color:var(--accent);transform:translateY(-2px)}.home-card__icon{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;background:var(--accent-soft);color:var(--accent);margin-bottom:14px}.home-card h3{margin:0 0 6px;font-size:1.05rem;color:var(--text-1)}.home-card p{margin:0;font-size:.9rem;color:var(--text-2)}.not-found{min-height:calc(100vh - var(--topbar-h));display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px 24px}.not-found__code{font-size:clamp(5rem,18vw,9rem);font-weight:800;line-height:1;letter-spacing:-.04em;background:linear-gradient(120deg,var(--accent),var(--accent-strong));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;margin:0 0 8px}.not-found h1{font-size:1.5rem;margin:0 0 10px}.not-found p{color:var(--text-2);max-width:420px;margin:0 0 26px}@media(max-width:1150px){.toc{display:none}}@media(max-width:880px){.hamburger{display:inline-flex}.topbar__nav{display:none}.search__input-wrap{width:160px}.search__kbd{display:none}.search__results{width:min(320px,calc(100vw - 32px))}.sidebar{position:fixed;top:var(--topbar-h);left:0;z-index:45;width:min(300px,84vw);transform:translate(-102%);transition:transform .25s ease,background-color .25s ease;box-shadow:none}.sidebar--open{transform:translate(0);box-shadow:var(--shadow)}.sidebar-backdrop{display:block;position:fixed;inset:var(--topbar-h) 0 0 0;z-index:40;background:#0a0c1473;opacity:0;pointer-events:none;transition:opacity .25s ease}.sidebar-backdrop--open{opacity:1;pointer-events:auto}.doc-main{padding:28px 20px 56px}}@media(max-width:540px){.topbar{gap:10px;padding:0 12px}.topbar__brand-text,.topbar__badge,.topbar__spacer{display:none}.search{flex:1;min-width:0}.search__input-wrap{width:100%}.search__results{position:fixed;top:calc(var(--topbar-h) + 4px);left:12px;right:12px;width:auto}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}.lang{position:relative}.lang__button{display:inline-flex;align-items:center;gap:.4rem;height:36px;padding:0 .6rem;border:none;border-radius:8px;background:transparent;color:var(--text-2);font:inherit;font-size:.85rem;cursor:pointer;transition:background-color .15s ease,color .15s ease}.lang__button:hover,.lang__button[aria-expanded=true]{background:var(--bg-mute);color:var(--text-1)}.lang__chevron{transition:transform .15s ease}.lang__chevron--open{transform:rotate(180deg)}.lang__menu{position:absolute;top:calc(100% + 8px);right:0;min-width:160px;margin:0;padding:6px;list-style:none;background:var(--bg);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow);z-index:60}.lang__option{display:flex;align-items:center;justify-content:space-between;gap:.75rem;width:100%;padding:.45rem .65rem;border:none;border-radius:7px;background:transparent;color:var(--text-1);font:inherit;font-size:.88rem;text-align:left;cursor:pointer}.lang__option--focused,.lang__option:hover{background:var(--bg-mute)}.lang__option--current{color:var(--accent);font-weight:600}@media(max-width:540px){.lang__current{display:none}}