:root{--color-bg: #ffffff;--color-surface: #f8fafc;--color-ink: #0f172a;--color-muted: #64748b;--color-border: #e2e8f0;--color-brand: #4f46e5;--color-brand-dark: #4338ca;--color-accent: #0891b2;--color-accent-soft: #e0f2fe;--radius: 12px;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);--shadow-md: 0 8px 24px rgba(15, 23, 42, .08);--maxw: 1120px;--font-sans: "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font-sans);color:var(--color-ink);background:var(--color-bg);line-height:1.65;-webkit-font-smoothing:antialiased}img{max-width:100%;height:auto;display:block}a{color:var(--color-brand);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3,h4{line-height:1.2;font-weight:700;letter-spacing:-.01em}.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}.muted{color:var(--color-muted)}.section{padding:72px 0}.section-alt{background:var(--color-surface)}.eyebrow{text-transform:uppercase;letter-spacing:.08em;font-size:.78rem;font-weight:700;color:var(--color-brand)}.lead{font-size:1.18rem;color:var(--color-muted);max-width:720px}.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;font-weight:600;font-size:.95rem;border:1px solid transparent;cursor:pointer;transition:background .15s ease,transform .15s ease}.btn:hover{text-decoration:none;transform:translateY(-1px)}.btn-primary{background:var(--color-brand);color:#fff}.btn-primary:hover{background:var(--color-brand-dark)}.btn-outline{background:#fff;color:var(--color-brand);border-color:var(--color-border)}.btn-outline:hover{border-color:var(--color-brand)}.site-header{position:sticky;top:0;z-index:50;background:#ffffffe6;backdrop-filter:blur(8px);border-bottom:1px solid var(--color-border)}.header-inner{display:flex;align-items:center;gap:24px;height:68px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;color:var(--color-ink);font-size:1.05rem}.brand:hover{text-decoration:none}.brand strong{color:var(--color-brand)}.brand-mark{width:26px;height:26px;border-radius:7px;background:var(--color-ink);display:inline-block;flex:none}.nav{display:flex;gap:22px;margin-left:auto}.nav-link{color:var(--color-ink);font-weight:500;font-size:.95rem}.nav-link:hover{color:var(--color-brand);text-decoration:none}.site-footer{background:var(--color-ink);color:#cbd5e1;padding:64px 0 32px;margin-top:40px}.site-footer a{color:#cbd5e1}.site-footer a:hover{color:#fff}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:32px}.footer-grid h3{color:#fff;font-size:.9rem;margin:0 0 14px;text-transform:uppercase;letter-spacing:.05em}.footer-col{display:flex;flex-direction:column;gap:8px;font-size:.92rem}.footer-brand .brand-text{color:#fff}.footer-brand strong{color:#a5b4fc}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:24px;font-size:.85rem;color:#94a3b8}.hero{padding:88px 0 72px;background:linear-gradient(180deg,var(--color-surface) 0%,#fff 100%)}.hero h1{font-size:clamp(2rem,4.5vw,3.1rem);max-width:760px;margin:12px 0 20px}.hero .lead{max-width:680px}.hero-actions{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px;margin-top:36px}.card{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm);transition:box-shadow .15s ease,transform .15s ease}.card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.card h3{margin:0 0 10px;font-size:1.15rem}.card p{margin:0;color:var(--color-muted);font-size:.95rem}.card .card-link{display:inline-block;margin-top:16px;font-weight:600;font-size:.92rem}.check-list{list-style:none;padding:0;margin:0;display:grid;gap:12px}.check-list li{padding-left:28px;position:relative}.check-list li:before{content:"✓";position:absolute;left:0;color:var(--color-brand);font-weight:700}.table-wrap{overflow-x:auto;border:1px solid var(--color-border);border-radius:var(--radius)}table{width:100%;border-collapse:collapse;font-size:.94rem}th,td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--color-border)}th{background:var(--color-surface);font-weight:700;white-space:nowrap}tr:last-child td{border-bottom:none}.form{display:grid;gap:16px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.form label{display:block;font-size:.9rem;font-weight:600;margin-bottom:6px}.form input,.form select,.form textarea{width:100%;padding:12px 14px;border:1px solid var(--color-border);border-radius:8px;font-family:inherit;font-size:.95rem;background:#fff}.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--color-brand);box-shadow:0 0 0 3px #4f46e51f}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:48px}.wa-float{position:fixed;right:16px;bottom:16px;z-index:50;display:inline-flex;align-items:center;background:#25d366;color:#fff;border-radius:999px;padding:12px 20px;font-size:.92rem;font-weight:700;line-height:1;text-decoration:none;box-shadow:0 6px 18px #0f172a2e}.wa-float:hover,.wa-float:focus{background:#1da851;color:#fff;text-decoration:none}@media(max-width:800px){.nav{display:none}.grid-2,.form-row{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.section{padding:48px 0}.wa-float{right:12px;bottom:12px;padding:11px 16px;font-size:.88rem}}