:root{color-scheme:light;--paper:#fff;--background:#f7f9fc;--ink:#193047;--muted:#526779;--line:#dce5ee;--blue:#23658c;--soft:#edf5fa;--header:#0b3445;color:var(--ink);background:var(--background);font-synthesis:none;font-family:Inter,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;font-size:16px;line-height:1.5}[hidden]{display:none!important}button,select{font:inherit}button,a,select{-webkit-tap-highlight-color:transparent}button,select{cursor:pointer}button:focus-visible,a:focus-visible,select:focus-visible{outline-offset:4px;outline:3px solid #1d7aba}a{color:var(--blue)}.sr-only{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{z-index:5;background:var(--paper);border-radius:6px;padding:12px 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svg{flex:none;width:16px;height:16px}.back-button:hover{background:#eaf1f4;border-color:#a8cbd7}.page-content{max-width:1064px;margin-inline:auto;padding:50px 32px 64px}.hero{margin-bottom:36px}.eyebrow{color:var(--blue);text-transform:uppercase;letter-spacing:.12em;margin:0 0 12px;font-size:.875rem;font-weight:700;line-height:1.5}h1{letter-spacing:-.035em;text-wrap:balance;margin:0 0 16px;font-size:clamp(2.75rem,3.3vw,3rem);font-weight:700;line-height:1.15}.intro{max-width:650px;color:var(--muted);margin:0;font-size:1rem;line-height:1.5}.filter-area{border-bottom:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:22px;padding-bottom:22px;display:flex}.topic-filters{flex-wrap:wrap;gap:8px;display:flex}.topic-filters button{border:1px solid var(--line);background:var(--paper);min-height:44px;color:var(--ink);border-radius:7px;padding:10px 15px;font-size:.875rem;font-weight:700;line-height:1.5}.topic-filters button:hover{background:var(--soft)}.topic-filters button[aria-pressed=true]{color:var(--paper);background:var(--ink);border-color:var(--ink)}.model-filter{color:var(--muted);flex-direction:column;gap:6px;min-width:230px;max-width:100%;font-size:.875rem;font-weight:700;line-height:1.5;display:flex}.model-filter select{width:100%;min-height:44px;color:var(--ink);background:var(--paper);border:1px solid #bacbd3;border-radius:7px;padding:10px 32px 10px 12px;font-size:1rem;font-weight:400;line-height:1.5}.result-count{color:var(--muted);margin:19px 0 15px;font-size:.875rem;line-height:1.5}.guide-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;display:grid}.guide-card{background:var(--paper);border:1px solid var(--line);border-radius:12px;flex-direction:column;min-width:0;padding:26px;display:flex}.card-top{color:var(--blue);justify-content:space-between;align-items:center;gap:12px;display:flex}.card-top svg{flex:none;width:23px;height:23px}.category{text-transform:uppercase;letter-spacing:.08em;font-size:.8rem;font-weight:700;line-height:1.5}.guide-card h3{letter-spacing:-.02em;margin:18px 0 9px;font-size:1.3rem;font-weight:700;line-height:1.3}.model-label{max-width:100%;color:var(--muted);overflow-wrap:anywhere;margin:0 0 12px;font-size:.875rem;line-height:1.5}.card-description{color:var(--muted);flex:1;margin:0 0 18px;font-size:.9rem;line-height:1.5}.guide-link{align-self:flex-start;align-items:center;gap:8px;min-height:44px;padding:5px 0;font-size:.875rem;font-weight:700;line-height:1.5;text-decoration:none;display:inline-flex}.guide-link:hover{text-underline-offset:3px;text-decoration:underline}.guide-link svg{width:18px;height:18px}.empty-state{padding:32px 0}.empty-state h3{letter-spacing:-.02em;margin:0 0 10px;font-size:1.3rem;line-height:1.3}.empty-state p,.noscript-note{color:var(--muted);font-size:.9rem;line-height:1.5}.empty-state button{border:1px solid var(--line);background:var(--paper);min-height:44px;color:var(--ink);border-radius:7px;padding:10px 16px;font-size:.875rem;font-weight:700;line-height:1.5}.site-footer{max-width:1064px;color:var(--muted);flex-wrap:wrap;justify-content:space-between;gap:12px;margin-inline:auto;padding:24px 32px 36px;font-size:.875rem;line-height:1.5;display:flex}@media (width<=720px){.page-content{padding:32px 20px 40px}.hero{text-align:center;margin-bottom:28px}h1{font-size:2rem}.intro{margin-inline:auto;font-size:.95rem}.model-filter{width:100%}.filter-area{gap:18px}.guide-grid{grid-template-columns:1fr;gap:14px}.guide-card{padding:22px}.guide-card h3,.empty-state h3{font-size:1.12rem}.site-footer{padding:24px 20px}}@media (width<=360px){.page-content{padding-inline:16px}.topic-filters{gap:6px}.topic-filters button{padding-inline:10px}.guide-card{padding:18px}}@media (width<=1100px){.brand-banner-inner,.back-row-inner{padding-inline:28px}}@media 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