:root{--color-canvas:#f7f7f5;--color-surface:#fff;--color-text-primary:#171717;--color-text-secondary:#606060;--color-muted:#70706c;--color-hairline:#ddddd8;--color-accent:#2855c5;--color-on-accent:#fff;--font-sans:var(--font-geist-sans), "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", system-ui, sans-serif;--font-mono:var(--font-geist-mono), "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Consolas, monospace;--container-wide:70rem;--content-reading:47.5rem;--page-gutter:1.375rem;--grid-gutter-desktop:1.5rem;--border-hairline-width:1px;--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-7:1.75rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--space-14:3.5rem;--space-16:4rem;--space-18:4.5rem;--space-24:6rem;--text-display-name-size:2.5rem;--text-display-name-line:2.75rem;--text-display-name-weight:600;--text-display-name-tracking:-.02em;--text-display-page-size:2.125rem;--text-display-page-line:2.4375rem;--text-display-page-weight:600;--text-display-page-tracking:-.01em;--text-heading-project-size:2rem;--text-heading-project-line:2.375rem;--text-heading-project-weight:600;--text-heading-project-tracking:-.01em;--text-heading-section-size:1.5rem;--text-heading-section-line:1.875rem;--text-heading-section-weight:600;--text-heading-section-tracking:-.01em;--text-body-lead-size:1.0625rem;--text-body-lead-line:1.625rem;--text-body-lead-weight:400;--text-body-lead-tracking:0em;--text-body-default-size:1rem;--text-body-default-line:1.625rem;--text-body-default-weight:400;--text-body-default-tracking:0em;--text-body-small-size:.875rem;--text-body-small-line:1.25rem;--text-body-small-weight:400;--text-body-small-tracking:0em;--text-nav-size:.875rem;--text-nav-line:1.25rem;--text-nav-weight:500;--text-nav-tracking:0em;--text-mono-label-size:.75rem;--text-mono-label-line:1rem;--text-mono-label-weight:500;--text-mono-label-tracking:.06em;--text-mono-meta-size:.8125rem;--text-mono-meta-line:1.25rem;--text-mono-meta-weight:400;--text-mono-meta-tracking:0em}@media (min-width:1024px){:root{--text-display-name-size:3.5rem;--text-display-name-line:3.75rem;--text-display-page-size:2.75rem;--text-display-page-line:3rem;--text-heading-section-size:1.75rem;--text-heading-section-line:2.125rem;--text-body-lead-size:1.125rem;--text-body-lead-line:1.75rem}}
*,:before,:after{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--color-canvas);color:var(--color-text-primary);font-family:var(--font-sans);font-size:var(--text-body-default-size);line-height:var(--text-body-default-line);font-weight:var(--text-body-default-weight);overflow-wrap:anywhere}main{padding-block:var(--space-16)}h1{margin:0 0 var(--space-6);font-size:var(--text-display-page-size);line-height:var(--text-display-page-line);font-weight:var(--text-display-page-weight);letter-spacing:var(--text-display-page-tracking)}.display-name{font-size:var(--text-display-name-size);line-height:var(--text-display-name-line);font-weight:var(--text-display-name-weight);letter-spacing:var(--text-display-name-tracking)}p{margin-block:0 var(--space-4)}a{color:inherit;text-underline-offset:.2em}button,input,textarea,select{font:inherit}img,video,svg{max-width:100%;height:auto}code,pre{font-family:var(--font-mono)}:focus-visible{outline:2px solid var(--color-accent);outline-offset:3px}::selection{background:var(--color-accent);color:var(--color-on-accent)}.skip-link{z-index:10;padding:var(--space-3) var(--space-4);background:var(--color-surface);position:absolute;inset-block-start:var(--space-2);inset-inline-start:var(--page-gutter);transform:translateY(-200%)}.skip-link:focus{transform:translateY(0)}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}@media print{body{background:var(--color-surface);color:var(--color-text-primary)}nav,.skip-link{display:none!important}main{padding-block:var(--space-4)}a{color:inherit}}