:root{--text-h1:36px;--text-h2:26px;--text-h3:20px;--text-h4:18px;--text-lead:19px;--text-body:17px;--text-body-mobile:16px;--text-label:14px;--text-meta:13px;--text-caption:12px;--leading-tight:1.3;--leading-snug:1.5;--leading-normal:1.7;--leading-relaxed:1.85;--weight-regular:400;--weight-medium:500;--weight-semibold:600;--weight-bold:700;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Helvetica Neue", Helvetica, Arial, sans-serif;--font-mono:"SF Mono", "JetBrains Mono", Menlo, Consolas, "Courier New", monospace;--bg-page:#ffffff;--bg-subtle:#fafafa;--bg-card:#ffffff;--bg-elevated:#f4f4f5;--text-primary:#18181b;--text-body:#3f3f46;--text-muted:#71717a;--text-faint:#a1a1aa;--accent:#7c3aed;--accent-hover:#6d28d9;--accent-light:#a78bfa;--accent-subtle:#f5f3ff;--accent-strong:#5b21b6;--free-bg:#f5f3ff;--free-color:#6d28d9;--free-border:#ddd6fe;--trial-bg:#eff6ff;--trial-color:#1d4ed8;--trial-border:#bfdbfe;--risk-bg:#fef2f2;--risk-color:#b91c1c;--risk-border:#fecaca;--border-subtle:#f4f4f5;--border-default:#e4e4e7;--border-strong:#d4d4d8;--status-good:#16a34a;--status-mid:#d97706;--status-low:#dc2626;--status-vendor:#8b5cf6;--status-measured:#2563eb;--status-untested:#a1a1aa;--table-header-bg:#f5f3ff;--table-header-color:#5b21b6;--table-row-alt:#fafafa;--table-border:#e4e4e7;--max-width:1240px;--header-height:64px}*,*::before,*::after{box-sizing:border-box}html{font-family:var(--font-sans);background-color:var(--bg-page);color:var(--text-body);font-size:var(--text-body);line-height:var(--leading-normal);-webkit-font-smoothing:antialiased;scroll-behavior:smooth}body{margin:0;padding:0;min-height:100vh;display:flex;flex-direction:column}a{color:var(--accent-strong);text-decoration:underline;text-underline-offset:3px;transition:color 120ms}a:hover{color:var(--accent-hover)}h1,h2,h3,h4,h5,h6{color:var(--text-primary);margin-top:0;font-weight:var(--weight-bold);line-height:var(--leading-tight)}h1{font-size:var(--text-h1)}h2{font-size:var(--text-h2)}h3{font-size:var(--text-h3)}h4{font-size:var(--text-h4)}p{margin-top:0;margin-bottom:1.4em;color:var(--text-body);line-height:var(--leading-relaxed)}.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--border-default);height:var(--header-height)}.site-header__inner{max-width:var(--max-width);margin:0 auto;padding:0 1.25rem;height:100%;display:flex;align-items:center;justify-content:space-between;gap:1rem}.site-brand{display:flex;align-items:center;gap:.65rem;text-decoration:none;color:var(--text-primary);font-weight:var(--weight-bold);font-size:18px;flex-shrink:0}.site-brand svg{width:28px;height:28px;color:var(--accent)}.site-brand__avatar{width:32px;height:32px;border-radius:50%;object-fit:cover;border:2px solid var(--accent-light);display:block}.site-brand:hover{color:var(--accent-strong)}.site-nav{display:flex;align-items:center;gap:.4rem;overflow-x:auto;padding:.2rem 0}.site-nav__link{font-size:15px;font-weight:var(--weight-medium);color:var(--text-body);text-decoration:none;padding:.45rem .65rem;border-radius:6px;white-space:nowrap;transition:all 120ms}.site-nav__link:hover,.site-nav__link.is-active{color:var(--accent-strong);background:var(--accent-subtle)}.header-actions{display:flex;align-items:center;gap:.75rem;flex-shrink:0}.search-trigger-btn{display:inline-flex;align-items:center;gap:.4rem;background:var(--bg-elevated);border:1px solid var(--border-default);color:var(--text-muted);font-size:14px;padding:.4rem .8rem;border-radius:6px;cursor:pointer;text-decoration:none;transition:all 120ms}.search-trigger-btn:hover{border-color:var(--accent);color:var(--accent-strong);background:var(--accent-subtle)}.main-wrapper{flex:1;max-width:var(--max-width);width:100%;margin:0 auto;padding:2rem 1.25rem 4rem}.breadcrumbs{display:flex;align-items:center;flex-wrap:wrap;gap:.5rem;font-size:var(--text-meta);color:var(--text-muted);margin-bottom:1.5rem}.breadcrumbs a{color:var(--text-muted);text-decoration:none}.breadcrumbs a:hover{color:var(--accent-strong);text-decoration:underline}.breadcrumbs__sep{color:var(--text-faint)}.layout-with-sidebar{display:grid;grid-template-columns:minmax(0,1fr)280px;gap:2.5rem;align-items:start}.single-column-layout{max-width:900px;margin:0 auto}.doc-list{list-style:none;padding:0;margin:1.5em 0;border:1px solid var(--border-default);border-radius:8px;overflow:hidden;background:var(--bg-card)}.doc-list__item{display:flex;align-items:flex-start;gap:1em;padding:1.1em 1.25em;border-bottom:1px solid var(--border-subtle);transition:background 120ms}.doc-list__item:last-child{border-bottom:none}.doc-list__item:hover{background:var(--accent-subtle)}.doc-list__icon{flex-shrink:0;width:20px;height:20px;margin-top:.18em;color:var(--accent)}.doc-list__body{flex:1;min-width:0}.doc-list__title{font-size:16px;font-weight:var(--weight-semibold);color:var(--text-primary);margin-bottom:.3em;line-height:var(--leading-snug);text-decoration:none;display:inline-block}.doc-list__title:hover{color:var(--accent-strong)}.doc-list__desc{font-size:14px;color:var(--text-muted);line-height:var(--leading-normal);margin:0}.doc-list__meta{font-size:13px;color:var(--text-faint);margin-top:.45em;display:flex;align-items:center;gap:.75rem;flex-wrap:wrap}.badge{display:inline-flex;align-items:center;gap:.3em;padding:.2em .55em;border-radius:4px;font-size:var(--text-caption);font-weight:var(--weight-medium);line-height:1.4;white-space:nowrap;text-decoration:none}.badge--free{background:var(--free-bg);color:var(--free-color);border:1px solid var(--free-border)}.badge--trial{background:var(--trial-bg);color:var(--trial-color);border:1px solid var(--trial-border)}.badge--risk{background:var(--risk-bg);color:var(--risk-color);border:1px solid var(--risk-border)}.badge--unverified{background:var(--bg-elevated);color:var(--text-muted);border:1px solid var(--border-default)}.badge--vendor{background:#f5f3ff;color:#6d28d9;border:1px solid #ddd6fe}.badge--measured{background:#eff6ff;color:#1d4ed8;border:1px solid #bfdbfe}.table-container{width:100%;overflow-x:auto;margin:2em 0;border:1px solid var(--table-border);border-radius:8px;box-shadow:0 1px 3px rgba(0,0,0,2%)}.data-table{width:100%;border-collapse:collapse;font-size:15px;line-height:var(--leading-snug);background:#fff}.data-table thead{background:var(--table-header-bg);color:var(--table-header-color)}.data-table th{padding:.85em 1em;text-align:left;font-weight:var(--weight-semibold);font-size:14px;white-space:nowrap;border-bottom:2px solid var(--accent-light)}.data-table td{padding:.8em 1em;border-bottom:1px solid var(--table-border);color:var(--text-body)}.data-table tbody tr:nth-child(even){background:var(--table-row-alt)}.data-table tbody tr:hover{background:var(--accent-subtle)}.data-table .numeric{font-family:var(--font-mono);font-variant-numeric:tabular-nums;text-align:right;font-weight:var(--weight-medium)}.article-content{max-width:760px;font-size:var(--text-body);line-height:var(--leading-relaxed);color:var(--text-body);background:var(--bg-page)}.article-content p{margin-bottom:1.4em}.article-content h2{font-size:var(--text-h2);font-weight:var(--weight-bold);line-height:var(--leading-tight);margin-top:2.5em;margin-bottom:.85em;color:var(--text-primary);border-left:4px solid var(--accent);padding-left:.65em}.article-content h3{font-size:var(--text-h3);font-weight:var(--weight-semibold);margin-top:1.9em;margin-bottom:.65em;color:var(--text-primary)}.article-content h4{font-size:var(--text-h4);font-weight:var(--weight-semibold);margin-top:1.4em;margin-bottom:.5em;color:var(--text-primary)}.article-content a{color:var(--accent-strong);text-decoration:underline;text-underline-offset:3px}.article-content a:hover{color:var(--accent-hover)}.article-content code{background:var(--bg-elevated);color:#18181b;padding:.15em .4em;border-radius:4px;font-family:var(--font-mono);font-size:.9em}.article-content pre{background:#18181b;color:#e4e4e7;padding:1.25em;border-radius:8px;overflow-x:auto;font-size:14px;line-height:1.6;margin:1.8em 0}.article-content pre code{background:0 0;color:inherit;padding:0;border-radius:0}.article-content blockquote{border-left:3px solid var(--accent);background:var(--accent-subtle);padding:1em 1.25em;margin:1.5em 0;border-radius:0 6px 6px 0;color:var(--text-body)}.article-content ul,.article-content ol{padding-left:1.5em;margin-bottom:1.5em}.article-content li{margin-bottom:.45em}.risk-warning{background:var(--risk-bg);border:1px solid var(--risk-border);border-left:4px solid var(--risk-color);border-radius:8px;padding:1.1em 1.35em;margin:1.8em 0;display:flex;gap:.85em;align-items:flex-start}.risk-warning__icon{flex-shrink:0;width:22px;height:22px;color:var(--risk-color);margin-top:.15em}.risk-warning__content{flex:1;font-size:15px;line-height:var(--leading-normal);color:#7f1d1d}.risk-warning__title{font-weight:var(--weight-bold);font-size:16px;margin-bottom:.35em;color:var(--risk-color)}.risk-warning p{color:#7f1d1d;margin-bottom:.4em}.risk-warning p:last-child{margin-bottom:0}.decision-tree-container{background:var(--bg-subtle);border:1px solid var(--border-default);border-radius:8px;padding:1.25em 1.5em;margin:2em 0;overflow-x:auto}.decision-tree-title{font-size:15px;font-weight:var(--weight-semibold);color:var(--text-primary);margin-bottom:.75em;display:flex;align-items:center;gap:.5rem}.decision-tree-content{font-family:var(--font-mono);font-size:14px;line-height:1.6;color:var(--text-primary);margin:0;white-space:pre}.key-takeaways{background:var(--bg-subtle);border:1px solid var(--accent-light);border-radius:8px;padding:1.25em 1.5em;margin:1.8em 0}.key-takeaways__title{font-size:16px;font-weight:var(--weight-bold);color:var(--accent-strong);margin-bottom:.75em;display:flex;align-items:center;gap:.45rem}.key-takeaways ul{margin:0;padding-left:1.2em}.key-takeaways li{font-size:15px;line-height:1.65;color:var(--text-body);margin-bottom:.4em}.key-takeaways li:last-child{margin-bottom:0}.faq-block{margin:2em 0}.faq-item{border:1px solid var(--border-default);border-radius:6px;margin-bottom:.75em;overflow:hidden;background:#fff}.faq-item summary{padding:.9em 1.2em;font-weight:var(--weight-semibold);font-size:16px;color:var(--text-primary);cursor:pointer;background:var(--bg-card);transition:background 120ms}.faq-item summary:hover{background:var(--accent-subtle);color:var(--accent-strong)}.faq-item__answer{padding:1em 1.2em;font-size:15px;line-height:var(--leading-relaxed);color:var(--text-body);border-top:1px solid var(--border-subtle);background:#fafafa}.brand-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.25rem;margin:2rem 0}.brand-card{border:1px solid var(--border-default);border-radius:8px;padding:1.25rem;background:var(--bg-card);display:flex;flex-direction:column;transition:transform 120ms,border-color 120ms,box-shadow 120ms}.brand-card:hover{border-color:var(--accent-light);box-shadow:0 4px 12px rgba(124,58,237,8%);transform:translateY(-2px)}.brand-card__header{display:flex;align-items:center;justify-content:space-between;margin-bottom:.75rem}.brand-card__title{font-size:18px;font-weight:var(--weight-bold);color:var(--text-primary);text-decoration:none}.brand-card__title:hover{color:var(--accent-strong)}.brand-card__rank{font-family:var(--font-mono);font-size:12px;font-weight:var(--weight-bold);padding:.2rem .5rem;background:var(--accent-subtle);color:var(--accent-strong);border-radius:4px}.brand-card__price-box{margin:.6rem 0;display:flex;align-items:baseline;gap:.4rem}.brand-card__price{font-family:var(--font-mono);font-size:22px;font-weight:var(--weight-bold);color:var(--accent-strong)}.brand-card__features{font-size:14px;color:var(--text-muted);line-height:1.6;margin-bottom:1rem;flex:1}.brand-card__actions{display:flex;align-items:center;gap:.5rem;margin-top:auto}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;padding:.55rem 1rem;font-size:14px;font-weight:var(--weight-medium);border-radius:6px;text-decoration:none;cursor:pointer;border:1px solid transparent;transition:all 120ms}.btn--primary{background:var(--accent);color:#fff!important}.btn--primary:hover{background:var(--accent-hover)}.btn--outline{background:0 0;border-color:var(--border-strong);color:var(--text-body)}.btn--outline:hover{border-color:var(--accent);color:var(--accent-strong);background:var(--accent-subtle)}.commercial-disclosure-note{font-size:12px;color:var(--text-faint);line-height:1.4;margin-top:.5rem}.low-cost-alternative-card{background:var(--accent-subtle);border:1px solid var(--accent-light);border-radius:8px;padding:1.5em;margin:2.5em 0}.low-cost-alternative-card__title{font-size:18px;font-weight:var(--weight-bold);color:var(--accent-strong);margin-bottom:.5em}.low-cost-alternative-card p{font-size:15px;line-height:1.6;margin-bottom:1em}.related-matrix{border-top:1px solid var(--border-default);padding-top:2rem;margin-top:3.5rem}.related-matrix__title{font-size:20px;font-weight:var(--weight-bold);color:var(--text-primary);margin-bottom:1.25rem}.related-matrix__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}.related-col__title{font-size:15px;font-weight:var(--weight-semibold);color:var(--accent-strong);margin-bottom:.75rem;display:flex;align-items:center;gap:.4rem;border-bottom:2px solid var(--accent-light);padding-bottom:.4rem}.related-col__list{list-style:none;padding:0;margin:0}.related-col__list li{margin-bottom:.6rem;font-size:14px;line-height:1.45}.site-footer{background:var(--bg-subtle);border-top:1px solid var(--border-default);padding:3rem 1.25rem 2rem;margin-top:auto;font-size:14px}.site-footer__inner{max-width:var(--max-width);margin:0 auto}.site-footer__disclaimer{background:#fff;border:1px solid var(--border-default);border-radius:6px;padding:1.2rem;font-size:13px;line-height:1.7;color:var(--text-muted);margin-bottom:2rem}.site-footer__disclaimer strong{color:var(--text-primary)}.site-footer__nav{display:flex;flex-wrap:wrap;gap:1.5rem;margin-bottom:1.5rem}.site-footer__nav a{color:var(--text-muted);text-decoration:none}.site-footer__nav a:hover{color:var(--accent-strong);text-decoration:underline}.site-footer__copy{color:var(--text-faint);font-size:13px}@media(max-width:900px){.layout-with-sidebar{grid-template-columns:minmax(0,1fr)}.related-matrix__grid{grid-template-columns:1fr}}@media(max-width:640px){:root{--text-h1:28px;--text-h2:22px;--text-h3:18px;--text-body:16px}.site-header__inner{padding:0 .75rem}.site-nav{display:none}.main-wrapper{padding:1.25rem .75rem 2.5rem}.doc-list__item{padding:.9em 1em}}.observatory-panel{background:#0f172a;border:1px solid #1e293b;border-radius:10px;color:#f1f5f9;padding:1.5rem;margin:2rem 0;box-shadow:0 10px 25px -5px rgba(0,0,0,.3);font-family:-apple-system,BlinkMacSystemFont,segoe ui,Roboto,monospace}.observatory-header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #1e293b;padding-bottom:.85rem;margin-bottom:1.25rem;flex-wrap:wrap;gap:.5rem}.observatory-title{font-size:15px;font-weight:700;color:#38bdf8;display:flex;align-items:center;gap:.5rem;letter-spacing:.02em}.observatory-badge{font-size:11px;font-weight:600;padding:.2rem .55rem;border-radius:9999px;background:rgba(56,189,248,.15);color:#38bdf8;border:1px solid rgba(56,189,248,.3)}.observatory-meta{font-size:12px;color:#94a3b8;display:flex;gap:1.25rem;margin-bottom:1.25rem;flex-wrap:wrap}.observatory-meta span strong{color:#e2e8f0}.observatory-stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:.75rem;margin-bottom:1.5rem}.observatory-stat-card{background:#1e293b;border:1px solid #334155;border-radius:6px;padding:.75rem 1rem}.observatory-stat-label{font-size:11px;color:#94a3b8;margin-bottom:.25rem;text-transform:uppercase}.observatory-stat-val{font-size:18px;font-weight:700;color:#f8fafc;font-family:var(--font-mono)}.observatory-stat-val.val--green{color:#34d399}.observatory-stat-val.val--blue{color:#38bdf8}.observatory-stat-val.val--yellow{color:#fbbf24}.observatory-bars{display:flex;flex-direction:column;gap:.85rem;margin-bottom:1.5rem}.observatory-bar-item{font-size:12px}.observatory-bar-info{display:flex;justify-content:space-between;margin-bottom:.3rem;color:#cbd5e1}.observatory-bar-track{width:100%;height:8px;background:#1e293b;border-radius:9999px;overflow:hidden;display:flex}.observatory-bar-fill{height:100%;border-radius:9999px;transition:width .3s ease}.fill--green{background:linear-gradient(90deg,#10b981,#34d399)}.fill--blue{background:linear-gradient(90deg,#0284c7,#38bdf8)}.fill--yellow{background:linear-gradient(90deg,#d97706,#fbbf24)}.observatory-footer{border-top:1px solid #1e293b;padding-top:.85rem;font-size:11px;color:#64748b;display:flex;justify-content:space-between;flex-wrap:wrap;gap:.5rem}.availability-matrix{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:.75rem;margin:1rem 0}.matrix-item{background:#1e293b;border:1px solid #334155;border-radius:6px;padding:.75rem 1rem;display:flex;justify-content:space-between;align-items:center}.matrix-name{font-size:13px;font-weight:600;color:#e2e8f0}.matrix-status{font-size:11px;font-weight:600;padding:.15rem .5rem;border-radius:4px}.status--operational{background:rgba(16,185,129,.2);color:#34d399;border:1px solid rgba(16,185,129,.4)}.status--partial{background:rgba(245,158,11,.2);color:#fbbf24;border:1px solid rgba(245,158,11,.4)}.status--unavailable{background:rgba(239,68,68,.2);color:#f87171;border:1px solid rgba(239,68,68,.4)}.topology-box{background:#0f172a;border:1px dashed #334155;border-radius:8px;padding:1.25rem;font-family:var(--font-mono);font-size:12px;color:#94a3b8;line-height:1.7;overflow-x:auto;margin:1.5rem 0}.brand-card__logo-wrapper{display:flex;align-items:center;gap:.75rem;margin-bottom:.75rem}.brand-card__logo-img{width:44px;height:44px;border-radius:8px;object-fit:cover;background:#f8fafc;border:1px solid var(--border-default)}.brand-card--primary-hero{grid-column:1/-1;background:linear-gradient(135deg,#ffffff 0%,#f5f3ff 100%);border:2px solid #7c3aed;box-shadow:0 10px 25px -5px rgba(124,58,237,.15)}