:root{--bg: #eceef3;--surface: #ffffff;--surface-2: #f8f9fc;--surface-3: #eef3ff;--ink: #101522;--ink-soft: #4a5568;--ink-faint: #717c90;--line: #dce1eb;--line-strong: #c8d0dd;--accent: #2563eb;--accent-2: #1543b8;--accent-ink: #ffffff;--good: #15803d;--warn: #b45309;--danger: #dc2626;--canvas: #dde3ee;--ad-bg: #f7f7fb;--shadow-sm: 0 8px 24px rgba(15, 23, 42, .07);--shadow-md: 0 18px 50px rgba(15, 23, 42, .12);--shadow-lg: 0 28px 80px rgba(15, 23, 42, .18);--r-md: 14px;--r-lg: 22px;--r-xl: 32px;--max: 1180px;--font: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, "Helvetica Neue", Arial, sans-serif;--mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;background:radial-gradient(900px 520px at 14% -8%,rgba(37,99,235,.13),transparent 62%),radial-gradient(800px 440px at 90% 3%,rgba(20,184,166,.11),transparent 60%),var(--bg);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button{border:0;background:transparent;color:inherit;cursor:pointer}img,svg{display:block;max-width:100%}:focus-visible{outline:3px solid rgba(37,99,235,.35);outline-offset:3px}.shell{min-height:100vh}.container{max-width:var(--max);margin:0 auto;padding-inline:28px}.skip-link{position:fixed;top:10px;left:10px;z-index:9999;transform:translateY(-140%);transition:transform .15s ease;background:var(--ink);color:#fff;padding:10px 14px;border-radius:12px}.skip-link:focus{transform:translateY(0)}.site-header{position:sticky;top:0;z-index:80;border-bottom:1px solid rgba(220,225,235,.85);background:#eceef3d1;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}.header-inner{height:74px;display:flex;align-items:center;gap:24px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.04em;white-space:nowrap;font-size:21px}.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;box-shadow:0 14px 28px #2563eb3d}.brand span:last-child span{color:var(--accent)}.nav{display:flex;align-items:center;gap:4px;margin-left:2px}.nav-item{position:relative}.nav-button,.nav-link{display:inline-flex;align-items:center;gap:7px;height:42px;padding:0 13px;border-radius:12px;font-weight:700;font-size:14.5px;color:var(--ink-soft);transition:background .16s ease,color .16s ease,transform .16s ease}.nav-button:hover,.nav-link:hover,.nav-item[data-open=true]>.nav-button{background:#1015220f;color:var(--ink)}.chev{width:15px;height:15px;transition:transform .18s ease}.nav-item[data-open=true] .chev{transform:rotate(180deg)}.nav-item.has-mega:after{content:"";position:absolute;left:-18px;right:-18px;top:100%;height:18px;pointer-events:auto}.mega{position:absolute;top:calc(100% + 12px);left:0;width:min(820px,calc(100vw - 40px));padding:14px;background:#fffffff7;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow-lg);transform-origin:32px -8px;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-6px) scale(.985);transition:opacity .14s ease,transform .14s ease,visibility .14s ease}.nav-item[data-open=true]>.mega{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0) scale(1)}.mega:before{content:"";position:absolute;top:-13px;left:0;right:0;height:18px}.mega-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}.mega-column{border-radius:18px;background:var(--surface-2);border:1px solid rgba(220,225,235,.7);padding:12px}.mega-heading{display:flex;align-items:center;justify-content:space-between;font-size:11px;color:var(--ink-faint);text-transform:uppercase;letter-spacing:.09em;font-weight:900;margin:4px 4px 10px}.mega-card{width:100%;display:grid;grid-template-columns:38px 1fr auto;align-items:center;gap:10px;padding:9px;border-radius:14px;text-align:left;transition:background .14s ease,transform .14s ease}.mega-card:hover,.mega-card:focus-visible{background:#fff;transform:translateY(-1px);box-shadow:0 10px 24px #0f172a0f}.mega-card strong{display:block;font-size:14px;line-height:1.15}.mega-card small{display:block;font-size:12px;color:var(--ink-faint);margin-top:3px;line-height:1.25}.tool-icon{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;color:var(--accent);background:#2563eb1a;flex:0 0 auto;font-weight:900}.mega-footer{margin-top:12px;padding:12px 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