
:root{--deep:#23364b;--mid:#405f7a;--accent:#62a1b0;--accent2:#d9b35d;--paper:#f3f7f8;--ink:#273540;--muted:#667784;--line:#dfe3df;--shadow:0 14px 38px rgba(30,45,48,.10);--wrap:min(1480px,calc(100% - 36px))}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:linear-gradient(90deg,rgba(70,80,70,.022) 1px,transparent 1px),linear-gradient(rgba(70,80,70,.022) 1px,transparent 1px),var(--paper);background-size:34px 34px;color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.68}a{color:var(--mid);text-underline-offset:3px}.wrap{width:var(--wrap);margin:auto}.skip{position:absolute;left:-9999px}.skip:focus{left:10px;top:10px;background:#fff;padding:10px;z-index:100}.site-header{background:var(--deep);color:#fff;position:sticky;top:0;z-index:40}.nav-row{min-height:74px;display:flex;align-items:center;gap:20px}.brand{display:flex;align-items:center;gap:12px;color:#fff;text-decoration:none;font-weight:900;min-width:350px}.mark{width:50px;height:50px;border-radius:12px;background:linear-gradient(145deg,var(--accent2),var(--accent));display:grid;place-items:center;color:var(--deep);font-size:.58rem;font-weight:950;text-align:center}.brand-copy{display:flex;flex-direction:column;line-height:1.05}.brand-copy small{font-size:.61rem;color:#d5dde0;text-transform:uppercase;letter-spacing:.07em}.nav-links{margin-left:auto;display:flex;gap:3px;flex-wrap:wrap}.nav-links a{color:#fff;text-decoration:none;padding:8px 10px;border-radius:8px;font-weight:760;font-size:.9rem}.nav-links a:hover,.nav-links a[aria-current=page]{background:rgba(255,255,255,.11)}.nav-toggle{display:none;margin-left:auto;background:transparent;color:#fff;border:1px solid #93a0a3;border-radius:8px;padding:8px 10px}
.hero{background:linear-gradient(125deg,var(--deep),var(--mid));color:#fff;padding:76px 0 62px}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}.eyebrow,.kicker{font-size:.76rem;font-weight:900;text-transform:uppercase;letter-spacing:.08em}.eyebrow{color:var(--accent2)}.kicker{color:var(--mid)}h1,h2,h3{line-height:1.14;letter-spacing:-.03em}h1{font-size:clamp(2.2rem,5vw,4.45rem);margin:.25em 0}.hero p{font-size:1.16rem;color:#f3f5f5}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.btn{display:inline-flex;padding:12px 16px;border-radius:10px;font-weight:850;text-decoration:none;border:1px solid transparent}.btn-primary{background:var(--accent2);color:var(--deep)}.btn-secondary{border-color:#c3ced0;color:#fff}.system{background:rgba(25,35,40,.35);border:1px solid rgba(255,255,255,.18);border-radius:20px;padding:22px}.flow{display:grid;grid-template-columns:112px 1fr;gap:14px;align-items:center;background:#fff;color:var(--ink);border-radius:11px;padding:13px;margin:9px 0;border-left:5px solid var(--accent)}.flow:nth-child(2){border-color:var(--accent2)}.flow:nth-child(3){border-color:#91a7a1}.flow:nth-child(4){border-color:#a58d76}.flow b{font-size:.84rem}.flow span{font-size:.77rem;color:var(--muted)}
.section{padding:60px 0}.section-tight{padding:42px 0}.lead{font-size:1.13rem;color:var(--muted);max-width:930px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.card,.article,.toc{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}.card{border-radius:18px;padding:24px}.card-link{display:block;color:inherit;text-decoration:none;transition:.16s}.card-link:hover{transform:translateY(-2px)}.page-head{padding:52px 0 28px}.page-head h1{font-size:clamp(2.1rem,4vw,3.55rem)}.page-head p{font-size:1.1rem;color:var(--muted);max-width:920px}.breadcrumbs,.meta,.small,.notice{font-size:.86rem;color:var(--muted)}.pill{display:inline-flex;background:#eef1ed;color:var(--mid);padding:5px 9px;border-radius:999px;margin:2px;font-size:.76rem;font-weight:850}.article-shell{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;align-items:start}.article{border-radius:20px;padding:clamp(24px,4vw,50px)}.article h2{margin-top:1.6em;font-size:clamp(1.5rem,2.6vw,2.05rem)}.article p,.article li{max-width:84ch}.toc{position:sticky;top:94px;border-radius:14px;padding:20px}.toc a{display:block;color:var(--muted);text-decoration:none;padding:6px 0}.callout{border-left:5px solid var(--accent);background:#faf8f1;border-radius:0 12px 12px 0;padding:18px 20px;margin:24px 0}.compare{width:100%;border-collapse:collapse;margin:24px 0}.compare th,.compare td{border:1px solid var(--line);padding:10px;text-align:left;vertical-align:top}.compare th{background:#f0f3f1}.tool{background:linear-gradient(145deg,var(--deep),var(--mid));color:#fff;padding:26px;border-radius:18px}.tool input,.tool select{width:100%;padding:11px;border-radius:8px;border:1px solid #b9c0c0;font:inherit}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.result{background:#fff;color:var(--ink);border-radius:10px;padding:17px;margin-top:18px}.result strong{font-size:1.35rem}.faq details{border:1px solid var(--line);border-radius:10px;padding:14px;margin:10px 0}.faq summary{font-weight:850;cursor:pointer}.site-footer{margin-top:60px;background:var(--deep);color:#dfe7e7;padding:42px 0 26px}.footer-grid{display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:26px}.site-footer h3{color:#fff}.site-footer a{color:#e6ebeb}.footer-brand{color:#fff;font-weight:900}.footer-note{margin-top:22px;padding-top:16px;border-top:1px solid rgba(255,255,255,.12);font-size:.84rem;color:#b6c2c2}.not-found{text-align:center;padding:90px 20px}.code{font-size:5rem;font-weight:950;color:var(--accent)}
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