:root{color-scheme:light;--color-bg: #faf9f6;--color-surface: #ffffff;--color-fg: #292b27;--color-accent: #b44725;--color-accent-soft: #f5e9df;--color-on-accent: #ffffff;--color-muted: #f0eee8;--color-border: #e3e1d9;--color-fg-muted: #696b63;--font-body: var(--font-atkinson), "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-display: var(--font-fraunces, Georgia), "Songti SC", serif;--font-mono: var(--font-ibm-plex-mono, ui-monospace), "SFMono-Regular", Menlo, monospace;--page-width: 1160px;--reading-width: 720px;--page-gutter: clamp(1.25rem, 4vw, 2.5rem);--radius: 14px}[data-theme=dark]{color-scheme:dark;--color-bg: #1b1d1a;--color-surface: #232621;--color-fg: #eeeee6;--color-accent: #efa17f;--color-accent-soft: #352b23;--color-on-accent: #241c17;--color-muted: #292c26;--color-border: #3b3e35;--color-fg-muted: #a9ad9f}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:6rem}body{font-family:var(--font-body);margin:0;background:var(--color-bg);color:var(--color-fg);font-size:16px;line-height:1.8;overflow-wrap:break-word;min-height:100svh;display:flex;flex-direction:column;-webkit-font-smoothing:antialiased}main{width:100%;max-width:840px;margin:0 auto;padding:3.5rem var(--page-gutter) 5rem;flex:1;min-width:0}main.page-wide{max-width:var(--page-width)}h1,h2,h3,h4,h5,h6{margin:0 0 .75rem;color:var(--color-fg);line-height:1.4;font-weight:700;text-wrap:pretty}h1{font-size:clamp(2rem,4vw,2.75rem);letter-spacing:-.035em}h2{font-size:1.5rem}h3{font-size:1.25rem}h4{font-size:1.125rem}h5{font-size:1rem}strong,b{font-weight:700}a{color:var(--color-accent);text-underline-offset:.22em;text-decoration-thickness:1px}a:hover{text-decoration:underline}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}:focus-visible{outline:2px solid var(--color-accent);outline-offset:4px}::selection{background:var(--color-accent-soft);color:var(--color-fg)}p{margin:0 0 1em}img{max-width:100%;height:auto;border-radius:8px}table{width:100%;border-collapse:collapse;font-size:.9375rem}th,td{border:1px solid var(--color-border);padding:.75rem 1rem;text-align:left}th{background:var(--color-muted)}code{font-family:var(--font-mono);font-size:.85em;padding:.2em .4em;background:var(--color-muted);border-radius:4px;color:var(--color-fg);overflow-wrap:anywhere}pre{padding:1.5rem;border:1px solid var(--color-border);border-radius:10px;overflow-x:auto;background:var(--color-muted);line-height:1.7;tab-size:2}pre>code{all:unset;font-family:var(--font-mono);font-size:.8125rem}blockquote{border-left:3px solid var(--color-accent);padding:.85rem 1.25rem;margin:1.75rem 0;color:var(--color-fg-muted);background:var(--color-muted);border-radius:0 8px 8px 0}blockquote>:last-child{margin-bottom:0}hr{border:0;border-top:1px solid var(--color-border);margin:2.5rem 0}ul,ol{padding-left:1.5rem}li{margin-bottom:.35rem}[hidden]{display:none!important}.prose{max-width:var(--reading-width);min-width:0;margin:0 auto;font-size:1.0625rem;line-height:1.95}.prose h2,.prose h3,.prose h4{margin-top:2.75rem;margin-bottom:1rem;scroll-margin-top:1rem}.prose h2{padding-bottom:.5rem;border-bottom:1px solid var(--color-border)}.prose p{margin-bottom:1.5em}.prose img{display:block;margin:2rem auto}.prose li>p{margin-bottom:.5em}.prose table{display:block;overflow-x:auto;margin:1.75rem 0}.prose pre{margin:1.75rem 0}.video-embed{position:relative;width:100%;aspect-ratio:16 / 9;margin:2rem 0;border-radius:10px;overflow:hidden;background:var(--color-muted)}.video-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.eyebrow{font-family:var(--font-mono);font-size:.7rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--color-fg-muted)}.text-link{color:var(--color-fg);font-size:.875rem;text-decoration:none}.text-link:hover{color:var(--color-accent)}.button-link{display:inline-flex;justify-content:center;align-items:center;gap:1rem;min-height:44px;padding:.6rem 1.15rem;border:1px solid var(--color-border);border-radius:8px;color:var(--color-fg);background:var(--color-surface);font-size:.875rem;font-weight:700;text-decoration:none}.button-link:hover{border-color:var(--color-accent);color:var(--color-accent);text-decoration:none}.button-link.primary{background:var(--color-fg);border-color:var(--color-fg);color:var(--color-bg)}.button-link.primary:hover{background:var(--color-accent);border-color:var(--color-accent);color:var(--color-on-accent)}.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:640px){main{padding-top:2rem;padding-bottom:3rem}.prose{font-size:1rem}pre{padding:1rem}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}