:root{--accent:#1e40af;--accent-dark:#00288e;--accent-gradient:linear-gradient(135deg, #00288e, #1e40af);--bg:#f7f9fb;--bg-subtle:#f2f4f6;--fg:#191c1e;--fg-muted:#444653;--border:#c4c5d5;--border-strong:#a8aab8;--radius:10px;--shadow:0 2px 8px #00000014}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px}body{background:var(--bg);color:var(--fg);-webkit-font-smoothing:antialiased;flex-direction:column;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif;line-height:1.6;display:flex}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}img,svg{max-width:100%;display:block}.container{width:100%;max-width:1100px;margin-inline:auto;padding-inline:24px}.stack{flex-direction:column;gap:24px;display:flex}main.container{flex:1;padding-block:48px}.muted{color:var(--fg-muted)}.text-sm{font-size:.875rem}.text-lg{font-size:1.125rem}.card{border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;padding:20px 24px}.btn{cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:1rem;font-weight:600;text-decoration:none;transition:opacity .15s;display:inline-flex}.btn:hover{opacity:.88;text-decoration:none}.btn-primary{background:var(--accent-gradient);color:#fff}.btn-sm{padding:7px 14px;font-size:.875rem}.site-header{border-bottom:1px solid var(--border);z-index:100;background:#fff;position:sticky;top:0}.site-header__inner{justify-content:space-between;align-items:center;height:60px;display:flex}.site-header__logo{background:var(--accent-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:1.2rem;font-weight:700;text-decoration:none}.site-header__nav{align-items:center;gap:20px;display:flex}.site-header__nav-link{color:var(--fg);font-size:.9375rem;text-decoration:none}.site-header__nav-link:hover{color:var(--accent);text-decoration:none}.site-footer{border-top:1px solid var(--border);background:#fff;margin-top:auto;padding-block:40px 24px}.site-footer__inner{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:32px;padding-bottom:32px;display:grid}.site-footer__col{flex-direction:column;gap:8px;display:flex}.site-footer__col a{color:var(--fg-muted);font-size:.9rem}.site-footer__col a:hover{color:var(--accent)}.site-footer__bottom{border-top:1px solid var(--border);padding-top:20px}.guide-page{padding-block:48px}.guide-header{gap:12px}.guide-header h1{font-size:2rem}.guide-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;display:grid}.guide-card{color:var(--fg);gap:10px;text-decoration:none;transition:box-shadow .15s,transform .15s}.guide-card:hover{text-decoration:none;transform:translateY(-2px);box-shadow:0 6px 20px #0000001f}.guide-card h3{font-size:1rem;line-height:1.4}.guide-category-badge{color:var(--accent-dark);letter-spacing:.04em;text-transform:uppercase;background:#e8edf7;border-radius:4px;width:fit-content;padding:3px 9px;font-size:.72rem;font-weight:600;display:inline-block}.guide-article-page{gap:32px;padding-block:32px 64px}.guide-breadcrumb{flex-wrap:wrap;align-items:center;gap:4px;display:flex}.guide-breadcrumb a{color:var(--fg-muted)}.guide-breadcrumb a:hover{color:var(--accent)}.guide-article{border:1px solid var(--border);border-radius:var(--radius);background:#fff;max-width:820px;padding:40px 48px}.guide-article h1{margin-bottom:8px;font-size:1.75rem;line-height:1.3}.guide-article h2{margin-top:2rem;margin-bottom:.75rem;font-size:1.3rem}.guide-article h3{margin-top:1.5rem;margin-bottom:.5rem;font-size:1.05rem}.guide-article p{margin-bottom:1rem}.guide-article ul,.guide-article ol{margin-bottom:1rem;padding-left:1.5rem}.guide-article li{margin-bottom:.4rem}.guide-article strong{font-weight:600}.guide-article em{font-style:italic}.guide-article a{color:var(--accent);text-decoration:underline}.guide-article blockquote{border-left:3px solid var(--border-strong);color:var(--fg-muted);margin:1.5rem 0;padding-left:16px}.guide-article hr{border:none;border-top:1px solid var(--border);margin:2rem 0}.guide-article code{background:var(--bg-subtle);border:1px solid var(--border);border-radius:4px;padding:2px 6px;font-family:ui-monospace,SF Mono,Consolas,monospace;font-size:.875em}.guide-article pre{color:#cdd6f4;background:#1e1e2e;border-radius:8px;margin:1.5rem 0;padding:20px 24px;overflow-x:auto}.guide-article pre code{color:inherit;background:0 0;border:none;padding:0}.guide-article table{border-collapse:collapse;width:100%;margin:1.5rem 0;font-size:.9rem}.guide-article th,.guide-article td{border:1px solid var(--border);text-align:left;vertical-align:top;padding:10px 14px}.guide-article th{background:var(--bg-subtle);font-weight:600}.guide-article tr:nth-child(2n) td{background:#fafbfc}.guide-related{gap:16px}.guide-related h2{font-size:1.1rem}@media (max-width:640px){.guide-article{padding:24px 20px}.guide-grid{grid-template-columns:1fr}.site-header__nav .site-header__nav-link{display:none}}