:root{--ink:#102033;--muted:#536579;--brand:#0b5cab;--brand-dark:#073f77;--accent:#0f9d78;--soft:#f3f7fb;--line:#d9e3ec;--warn:#fff6db;--white:#fff;--shadow:0 14px 36px rgba(16,32,51,.10);--radius:18px;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--white);line-height:1.7}a{color:var(--brand);text-decoration-thickness:.08em;text-underline-offset:.18em}a:hover{color:var(--brand-dark)}img{max-width:100%;height:auto}.container{width:min(var(--max),calc(100% - 32px));margin-inline:auto}.skip-link{position:absolute;left:-9999px;top:8px;background:#fff;padding:10px 14px;z-index:999}.skip-link:focus{left:12px}.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}.brand img{width:46px;height:54px;object-fit:contain}.brand strong{display:block;font-size:1.05rem}.brand small{display:block;color:var(--muted);font-size:.78rem}.nav{display:flex;align-items:center;gap:20px}.nav a{text-decoration:none;font-weight:700;font-size:.94rem}.nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;min-width:44px;min-height:44px;font-size:1.35rem}.hero{background:linear-gradient(135deg,#e9f4ff 0%,#f8fbff 55%,#eafaf5 100%);border-bottom:1px solid var(--line);padding:72px 0 58px}.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--brand);background:#fff;border:1px solid #cfe1f2;padding:7px 11px;border-radius:999px}.hero h1{font-size:clamp(2rem,2vw,2rem);line-height:1.06;margin:.55em 0 .3em;max-width:950px}.hero p{font-size:1.15rem;color:var(--muted);max-width:820px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.button{display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;border-radius:12px;font-weight:800;text-decoration:none;border:1px solid var(--brand)}.button-primary{background:var(--brand);color:#fff}.button-primary:hover{background:var(--brand-dark);color:#fff}.button-secondary{background:#fff}.breadcrumbs{font-size:.9rem;color:var(--muted);padding:16px 0}.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:0}.breadcrumbs li:not(:last-child)::after{content:"/";margin-left:8px;color:#8ca0b3}.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:42px;padding:42px 0 70px}.content h2{font-size:clamp(1.55rem,2vw,1.7rem);line-height:1.22;margin:1.75em 0 .5em}.content h3{font-size:1.25rem;line-height:1.3;margin:1.4em 0 .35em}.content p,.content li{max-width:78ch}.content ul,.content ol{padding-left:1.25rem}.toc,.callout,.card,.side-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow)}.toc{padding:20px 22px;margin-bottom:28px}.toc h2{font-size:1.1rem;margin:0 0 8px}.toc ul{columns:2;margin:0}.callout{padding:20px 22px;margin:24px 0;background:var(--warn);box-shadow:none;border-color:#eed488}.callout strong{display:block;margin-bottom:5px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card{padding:22px}.card h2,.card h3{margin-top:0}.card p{color:var(--muted)}.checklist{list-style:none;padding:0!important}.checklist li{position:relative;padding-left:28px;margin:9px 0}.checklist li::before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:900}.comparison{width:100%;border-collapse:collapse;margin:24px 0;font-size:.95rem}.comparison caption{text-align:left;font-weight:800;font-size:1.05rem;margin-bottom:10px}.comparison th,.comparison td{border:1px solid var(--line);padding:12px;vertical-align:top}.comparison th{background:var(--soft);text-align:left}.sidebar{align-self:start;position:sticky;top:96px}.side-card{padding:20px;margin-bottom:18px;box-shadow:none}.side-card h2{font-size:1.08rem;margin-top:0}.side-card ul{padding-left:1.1rem}.faq details{border-top:1px solid var(--line);padding:15px 0}.faq details:last-child{border-bottom:1px solid var(--line)}.faq summary{font-weight:800;cursor:pointer}.source-list li{margin-bottom:10px}.editorial{border-top:1px solid var(--line);margin-top:36px;padding-top:18px;color:var(--muted);font-size:.92rem}.site-footer{background:#0e1d2d;color:#dce7f0;padding:44px 0}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:28px}.site-footer a{color:#fff}.site-footer h2{font-size:1rem}.site-footer ul{list-style:none;padding:0}.site-footer li{margin:7px 0}.disclaimer{font-size:.86rem;color:#b8c7d5;border-top:1px solid #314358;margin-top:28px;padding-top:20px}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #ffbf47;outline-offset:3px}@media(max-width:900px){.nav-toggle{display:inline-flex}.nav{display:none;position:absolute;top:76px;left:16px;right:16px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}.nav.is-open{display:flex}.layout{grid-template-columns:1fr}.sidebar{position:static}.grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}}@media(max-width:620px){.hero{padding:52px 0 42px}.grid,.footer-grid{grid-template-columns:1fr}.toc ul{columns:1}.comparison{display:block;overflow-x:auto;white-space:normal}.brand small{display:none}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}}