:root{--bg: #ffffff;--bg-soft: #f6f7fb;--text: #0f172a;--muted: #5b6475;--border: #e4e7ef;--brand: #4f46e5;--brand-dark: #3730a3;--brand-soft: #eef2ff;--radius: 14px;--max: 1120px;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;color-scheme:light}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);line-height:1.65;font-size:17px;-webkit-font-smoothing:antialiased}img{max-width:100%;height:auto}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{line-height:1.2;letter-spacing:-.02em;margin:0 0 .6em}h1{font-size:clamp(2.1rem,5vw,3.4rem)}h2{font-size:clamp(1.6rem,3.2vw,2.2rem)}h3{font-size:1.2rem}p{margin:0 0 1em}.container{max-width:var(--max);margin:0 auto;padding:0 20px}.muted{color:var(--muted)}.section{padding:80px 0}.section-soft{background:var(--bg-soft)}.section-head{max-width:680px;margin:0 auto 48px;text-align:center}.eyebrow{display:inline-block;font-size:.8rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--brand);background:var(--brand-soft);padding:4px 12px;border-radius:999px;margin-bottom:16px}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:16px;top:16px;background:#fff;padding:8px 12px;z-index:100}.site-header{position:sticky;top:0;z-index:50;background:#ffffffe6;backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.15rem;color:var(--text)}.logo:hover{text-decoration:none}.site-header ul{display:flex;gap:6px;list-style:none;margin:0;padding:0}.site-header nav a{color:var(--muted);padding:8px 12px;border-radius:8px;font-weight:500;font-size:.95rem}.site-header nav a:hover{color:var(--text);background:var(--bg-soft);text-decoration:none}.site-header nav 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var(--border);border-radius:var(--radius);padding:28px}.card .icon{width:44px;height:44px;border-radius:10px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:1.3rem;margin-bottom:16px}.card p:last-child{margin-bottom:0}.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:24px;text-align:center}.stat strong{display:block;font-size:2.2rem;color:var(--brand)}.cta{background:var(--brand);color:#fff;border-radius:20px;padding:56px 32px;text-align:center}.cta p{color:#e0e7ff;max-width:560px;margin:0 auto 28px}.cta .btn{background:#fff;color:var(--brand)}.post-list{display:grid;gap:20px}.post-card{display:block;color:inherit}.post-card:hover{text-decoration:none;border-color:var(--brand)}.post-card h2,.post-card h3{color:var(--text);margin-bottom:8px}.meta{font-size:.9rem;color:var(--muted)}.tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}.tag{font-size:.78rem;background:var(--bg-soft);border:1px solid var(--border);padding:2px 10px;border-radius:999px;color:var(--muted)}.prose{max-width:720px;margin:0 auto}.prose h2{margin-top:1.8em}.prose h3{margin-top:1.5em}.prose ul,.prose ol{padding-left:1.3em;margin:0 0 1em}.prose li{margin-bottom:.4em}.prose blockquote{margin:1.5em 0;padding:4px 20px;border-left:4px solid var(--brand);color:var(--muted)}.prose code{background:var(--bg-soft);padding:2px 6px;border-radius:6px;font-size:.9em}.breadcrumb{font-size:.9rem;color:var(--muted);margin-bottom:20px}form .field{margin-bottom:18px}label{display:block;font-weight:600;font-size:.95rem;margin-bottom:6px}input,textarea{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:10px;font:inherit;background:#fff;color:var(--text)}input:focus,textarea:focus{outline:2px solid var(--brand-soft);border-color:var(--brand)}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 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6px}.help-article{max-width:820px;margin:0}.toc{background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius);padding:16px 20px 2px;margin:24px 0;font-size:.95rem}.toc li{margin:4px 0}.prose img{display:block;width:100%;height:auto;border:1px solid var(--border);border-radius:12px;box-shadow:0 8px 28px #0f172a14;margin:24px 0}.prose table{width:100%;border-collapse:collapse;margin:0 0 1.4em;font-size:.95rem;display:block;overflow-x:auto}.prose th,.prose td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border);vertical-align:top}.prose th{background:var(--bg-soft);font-weight:600}.prose h2[id],.prose h3[id]{scroll-margin-top:88px}.faq{border:1px solid var(--border);border-radius:12px;padding:14px 18px;margin-bottom:10px;background:#fff}.faq summary{font-weight:600;cursor:pointer}.faq p{margin:10px 0 0;color:var(--muted)}.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:48px}.pager .post-card{padding:18px 20px}.pager .post-card:last-child{text-align:right}.pager strong{display:block;color:var(--text)}.checklist{list-style:none;padding:0;margin:0 0 28px}.checklist li{padding-left:28px;position:relative;margin-bottom:8px}.checklist li:before{content:"✓";position:absolute;left:0;color:var(--brand);font-weight:700}.shot-link img{border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 12px 40px #0f172a1f}.site-footer{border-top:1px solid var(--border);padding:48px 0 24px;margin-top:40px}.footer-grid{display:grid;grid-template-columns:2fr 1fr;gap:32px}.footer-grid p{max-width:420px;margin-top:12px;font-size:.95rem}.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}.site-footer ul a{color:var(--muted)}.copyright{font-size:.85rem;border-top:1px solid var(--border);margin-top:32px;padding-top:20px}@media(max-width:640px){.site-header .logo span{display:none}.site-header nav a{padding:8px 6px;font-size:.9rem}.site-header ul{gap:2px}.section{padding:56px 0}.hero{padding:64px 0 48px}.footer-grid{grid-template-columns:1fr}}@media(max-width:900px){.help-layout{grid-template-columns:1fr;gap:24px}.help-nav{position:static;max-height:none;order:2;border-top:1px solid var(--border);padding-top:24px}.pager{grid-template-columns:1fr}}