:root{--color-bg:#fff;--color-text:#111;--color-text-secondary:#666;--color-text-muted:#999;--color-border:#1a1a1a;--color-border-light:#e8e8e8;--color-surface:#f7f7f8;--color-primary:#111;--color-on-primary:#fff;--color-black:#111;--color-white:#fff;--shadow-sm:0 1px 2px #1111110a;--shadow-md:0 8px 24px #11111114;--shadow-lg:0 16px 40px #1111111a;--color-card:var(--color-bg);--color-card-hover:var(--color-surface);--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--space-7:48px;--space-8:64px;--space-9:80px;--space-10:120px;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-pill:999px;--container-max:1240px;--header-height:60px;--font-sans:system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-mono:"JetBrains Mono", "Fira Code", monospace;--transition-fast:.18s ease;--transition-base:.24s cubic-bezier(.22, 1, .36, 1)}.theme-dark{--shadow-sm:0 1px 2px #0000003d;--shadow-md:0 10px 28px #00000052;--shadow-lg:0 18px 44px #0006;--color-card:color-mix(in srgb, var(--color-surface) 72%, var(--color-bg));--color-card-hover:color-mix(in srgb, var(--color-surface) 88%, var(--color-bg))}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px}body{font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg);line-height:1.6}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button{cursor:pointer;background:0 0;border:none;font-family:inherit}ul,ol{list-style:none}.page-fade-enter-active{transition:opacity .16s}.page-fade-leave-active{pointer-events:none;width:100%;transition:opacity .12s;position:absolute;inset:0}.page-fade-enter-from,.page-fade-leave-to{opacity:0}pre code.hljs{padding:1em;display:block;overflow-x:auto}code.hljs{padding:3px 5px}.hljs{color:#c9d1d9;background:#0d1117}.hljs-doctag,.hljs-keyword,.hljs-meta .hljs-keyword,.hljs-template-tag,.hljs-template-variable,.hljs-type,.hljs-variable.language_{color:#ff7b72}.hljs-title,.hljs-title.class_,.hljs-title.class_.inherited__,.hljs-title.function_{color:#d2a8ff}.hljs-attr,.hljs-attribute,.hljs-literal,.hljs-meta,.hljs-number,.hljs-operator,.hljs-variable,.hljs-selector-attr,.hljs-selector-class,.hljs-selector-id{color:#79c0ff}.hljs-regexp,.hljs-string,.hljs-meta .hljs-string{color:#a5d6ff}.hljs-built_in,.hljs-symbol{color:#ffa657}.hljs-comment,.hljs-code,.hljs-formula{color:#8b949e}.hljs-name,.hljs-quote,.hljs-selector-tag,.hljs-selector-pseudo{color:#7ee787}.hljs-subst{color:#c9d1d9}.hljs-section{color:#1f6feb;font-weight:700}.hljs-bullet{color:#f2cc60}.hljs-emphasis{color:#c9d1d9;font-style:italic}.hljs-strong{color:#c9d1d9;font-weight:700}.hljs-addition{color:#aff5b4;background-color:#033a16}.hljs-deletion{color:#ffdcd7;background-color:#67060c}.markdown-body{max-width:760px;color:var(--color-text);font-size:16px;line-height:1.8}.markdown-body :is(h1,h2,h3,h4){scroll-margin-top:calc(var(--header-height) + 16px);margin:1.6em 0 .8em;font-weight:700;line-height:1.35}.markdown-body h1{font-size:28px}.markdown-body h2{border-bottom:1px solid var(--color-border-light);padding-bottom:.35em;font-size:22px}.markdown-body h3{color:color-mix(in srgb, var(--color-text) 92%, var(--color-text-secondary));font-size:18px}.markdown-body p,.markdown-body ul,.markdown-body ol,.markdown-body blockquote,.markdown-body pre{margin:0 0 1em}.markdown-body ul,.markdown-body ol{padding-left:1.4em}.markdown-body li+li{margin-top:.35em}.markdown-body blockquote{border-left:3px solid var(--color-border);color:var(--color-text-secondary);background:var(--color-surface);padding:.6em 1em}.markdown-body pre{border-radius:var(--radius-sm);background:#1e1e1e;padding:1em;overflow-x:auto}.markdown-body code{font-family:var(--font-mono);font-size:.92em}.markdown-body :not(pre)>code{background:var(--color-surface);border:1px solid var(--color-border-light);border-radius:4px;padding:.15em .4em}.markdown-body img{border-radius:var(--radius-sm);border:1px solid var(--color-border-light);max-width:100%}.markdown-body table{border-collapse:collapse;width:100%;margin:1em 0}.markdown-body th,.markdown-body td{border:1px solid var(--color-border-light);text-align:left;padding:.6em .8em}.markdown-body a{color:var(--color-text);text-underline-offset:2px;text-decoration:underline}.theme-dark .markdown-body pre{background:#0d0d0d}html{scrollbar-gutter:stable}.container{width:100%;max-width:var(--container-max);padding:0 var(--space-6);margin:0 auto}.section{padding:var(--space-6) 0 var(--space-7)}.page-title{letter-spacing:-.02em;color:var(--color-text);margin-bottom:var(--space-2);font-size:clamp(26px,3vw,32px);font-weight:700;line-height:1.2}.page-desc{color:var(--color-text-secondary);margin-bottom:var(--space-5);max-width:40rem;font-size:15px;line-height:1.6}.section-title{letter-spacing:-.02em;color:var(--color-text);font-size:26px;font-weight:700;line-height:1.2}.section-subtitle{color:var(--color-text-muted);margin-top:var(--space-1);font-size:14px}.text-link{color:var(--color-text-secondary);transition:color var(--transition-fast), gap var(--transition-fast);align-items:center;gap:4px;font-size:14px;font-weight:500;display:inline-flex}.text-link:hover{color:var(--color-text);gap:8px}.card-surface{border:1px solid var(--color-border-light);border-radius:var(--radius-md);background:var(--color-card);transition:border-color var(--transition-fast)}.card-surface:hover{border-color:var(--color-border)}