.main-wrap{max-width:var(--max-w);margin:0 auto;padding:3rem 1.5rem 4rem}.main-wide{max-width:var(--max-w-wide)}[data-accent=blue]{--accent:#60a5fa;--accent-soft:#60a5fa26;--accent-2:#6ee7b7;--accent-2-soft:#6ee7b726;--gradient:linear-gradient(135deg, #60a5fa 0%, #a78bfa 50%, #6ee7b7 100%)}[data-accent=purple]{--accent:#a78bfa;--accent-soft:#a78bfa26;--accent-2:#f0abfc;--accent-2-soft:#f0abfc26;--gradient:linear-gradient(135deg, #a78bfa 0%, #f0abfc 50%, #60a5fa 100%)}[data-accent=green]{--accent:#4ade80;--accent-soft:#4ade8026;--accent-2:#fbbf24;--accent-2-soft:#fbbf2426;--gradient:linear-gradient(135deg, #4ade80 0%, #6ee7b7 50%, #fbbf24 100%)}[data-accent=red]{--accent:#f87171;--accent-soft:#f8717126;--accent-2:#fb923c;--accent-2-soft:#fb923c26;--gradient:linear-gradient(135deg, #f87171 0%, #fb923c 50%, #fbbf24 100%)}[data-accent=orange]{--accent:#fb923c;--accent-soft:#fb923c26;--accent-2:#fbbf24;--accent-2-soft:#fbbf2426;--gradient:linear-gradient(135deg, #fb923c 0%, #fbbf24 50%, #4ade80 100%)}[data-accent=pink]{--accent:#f472b6;--accent-soft:#f472b626;--accent-2:#a78bfa;--accent-2-soft:#a78bfa26;--gradient:linear-gradient(135deg, #f472b6 0%, #a78bfa 50%, #60a5fa 100%)}[data-accent=cyan]{--accent:#22d3ee;--accent-soft:#22d3ee26;--accent-2:#60a5fa;--accent-2-soft:#60a5fa26;--gradient:linear-gradient(135deg, #22d3ee 0%, #60a5fa 50%, #a78bfa 100%)}[data-theme=dark]{--bg:#0a0e14;--bg-elev:#131820;--bg-card:#1a1f29;--bg-card-hover:#20262f;--border:#2a313a;--border-soft:#1f2530;--text:#e6edf3;--text-dim:#8b949e;--text-mute:#5d6675;--shadow:0 4px 12px #0000004d;--shadow-lg:0 12px 32px #0006;color-scheme:dark}[data-theme=light]{--bg:#fafbfc;--bg-elev:#fff;--bg-card:#fff;--bg-card-hover:#f6f8fa;--border:#d0d7de;--border-soft:#e8ecf0;--text:#1f2328;--text-dim:#656d76;--text-mute:#8c959f;--shadow:0 2px 8px #0000000f;--shadow-lg:0 8px 24px #0000001a;color-scheme:light}:root{--max-w:760px;--max-w-wide:1024px;--radius:10px;--radius-lg:16px;--transition:.2s cubic-bezier(.4, 0, .2, 1);--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;--font-serif:"Noto Serif SC", "Georgia", "Times New Roman", serif;--font-mono:"JetBrains Mono", "SF Mono", Menlo, Consolas, monospace}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:var(--font-sans);transition:background var(--transition), color var(--transition);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px;line-height:1.7}a{color:var(--accent);transition:color var(--transition);text-decoration:none}a:hover{text-underline-offset:3px;text-decoration:underline 1.5px}code{font-family:var(--font-mono);background:var(--bg-elev);border:1px solid var(--border);border-radius:4px;padding:.15em .4em;font-size:.88em}pre{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.2em 1.4em;font-size:.92em;line-height:1.6;overflow-x:auto}pre code{font-size:inherit;background:0 0;border:none;padding:0}blockquote{border-left:3px solid var(--accent);color:var(--text-dim);background:var(--bg-elev);font-family:var(--font-serif);border-radius:0 6px 6px 0;margin:1.5em 0;padding:.6em 0 .6em 1.2em;font-size:1.05em;line-height:1.6}blockquote p{margin:.4em 0}h1,h2,h3,h4{font-family:var(--font-serif);letter-spacing:-.01em;margin-top:1.8em;font-weight:700;line-height:1.3}h1{font-size:2.2em}h2{padding-bottom:.4em;font-size:1.6em;position:relative}h2:after{content:"";background:var(--gradient);border-radius:2px;width:40px;height:3px;position:absolute;bottom:0;left:0}h3{font-size:1.25em}hr{background:var(--border);border:none;height:1px;margin:2.5em 0;position:relative}hr:after{content:"";background:var(--bg);background:linear-gradient(135deg, var(--accent), var(--accent-2));width:6px;height:6px;box-shadow:0 0 0 4px var(--bg);border-radius:1px;padding:0 1em;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)rotate(45deg)}img{border-radius:var(--radius);max-width:100%}table{border-collapse:collapse;width:100%}th,td{border:1px solid var(--border);padding:.6em .9em}th{background:var(--bg-elev)}ul li,ol li{margin:.3em 0}::selection{background:var(--accent-soft);color:var(--text)}[data-theme=dark] ::-webkit-scrollbar{width:10px;height:10px}[data-theme=dark] ::-webkit-scrollbar-track{background:var(--bg)}[data-theme=dark] ::-webkit-scrollbar-thumb{background:var(--border);border-radius:5px}[data-theme=dark] ::-webkit-scrollbar-thumb:hover{background:var(--text-mute)}@media (width<=640px){.nav-shell{gap:.5rem!important;padding:.9rem 1rem!important}.nav-desktop{display:none!important}.nav-mobile{display:flex!important}.nav-drawer[hidden]{display:none}.nav-drawer{display:block}}