:root,:root[data-theme=light]{--color-bg-primary: #ffffff;--color-bg-secondary: #f6f5f0;--color-bg-tertiary: #fbfaf6;--color-text-primary: #1a1a1a;--color-text-secondary: #5a5a55;--color-text-tertiary: #888780;--color-border: rgba(0, 0, 0, .1);--color-border-strong: rgba(0, 0, 0, .18);--color-accent: #185fa5;--color-accent-bg: rgba(24, 95, 165, .1);--color-info: var(--color-accent);--color-info-bg: var(--color-accent-bg);--color-warning: #b8731a;--color-warning-bg: rgba(184, 115, 26, .12);--color-success: #2f7a3a;--color-success-bg: rgba(47, 122, 58, .12);--color-code-bg: #f3f2ec}:root[data-theme=dark]{--color-bg-primary: #1c1c1a;--color-bg-secondary: #232321;--color-bg-tertiary: #1a1a18;--color-text-primary: #f1efe8;--color-text-secondary: #b8b6ad;--color-text-tertiary: #888780;--color-border: rgba(255, 255, 255, .1);--color-border-strong: rgba(255, 255, 255, .18);--color-accent: #378add;--color-accent-bg: rgba(55, 138, 221, .16);--color-info: var(--color-accent);--color-info-bg: var(--color-accent-bg);--color-warning: #d99a4a;--color-warning-bg: rgba(217, 154, 74, .16);--color-success: #6cbf78;--color-success-bg: rgba(108, 191, 120, .16);--color-code-bg: #26262420}:root{--sidebar-w: 200px;--content-max: 640px;--article-max: 680px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--radius-pill: 99px;--font-sans: "Inter", "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "PingFang SC", "Noto Sans CJK SC", "Source Han Sans CN", "Microsoft YaHei", sans-serif;--font-mono: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--color-bg-primary);color:var(--color-text-primary);font-family:var(--font-sans);line-height:1.7;font-size:15px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}html{transition:background-color .2s ease,color .2s 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16px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto}.content{flex:1;min-width:0;padding:32px;max-width:100%}.content-inner{max-width:var(--content-max);margin:0 auto}.content-inner.wide{max-width:980px}.content-inner.article{max-width:var(--article-max)}.topnav{display:none}@media(max-width:768px){.shell{flex-direction:column}.sidebar{display:none}.topnav{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;background:var(--color-bg-secondary);border-bottom:.5px solid var(--color-border);position:sticky;top:0;z-index:10;flex-wrap:wrap}.content{padding:20px 16px 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