:root{--blue:#2563eb;--blue-dark:#1d4ed8;--ink:#111827;--muted:#5b6472;--line:#e5e7eb;--bg:#f8fafc;--white:#fff;--shadow:0 20px 45px rgba(15,23,42,.08);--radius:18px;--container:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.65;background:var(--white)}img{max-width:100%;height:auto}a{color:inherit;text-decoration:none}.container{width:min(100% - 32px,var(--container));margin-inline:auto}.skip-link{position:absolute;left:-999px;top:8px;z-index:99;background:var(--blue);color:#fff;padding:8px 12px;border-radius:8px}.skip-link:focus{left:8px}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid rgba(229,231,235,.85)}.nav{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800}.brand-logo{width:42px;height:42px;object-fit:contain}.brand-name{font-size:20px;color:var(--blue)}.menu{display:flex;align-items:center;gap:26px}.nav-link{position:relative;color:#4b5563;font-weight:600}.nav-link:after{content:"";position:absolute;left:0;bottom:-8px;width:0;height:2px;background:var(--blue);transition:width .2s}.nav-link:hover,.nav-link.is-active{color:var(--blue)}.nav-link:hover:after,.nav-link.is-active:after{width:100%}.menu-toggle{display:none;width:44px;height:44px;border:0;background:transparent;padding:9px;cursor:pointer}.menu-toggle span{display:block;height:2px;margin:6px 0;background:var(--ink);border-radius:2px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;padding:12px 20px;font-weight:800;transition:transform .2s,box-shadow .2s,background .2s}.btn:hover{transform:translateY(-2px)}.btn-primary{background:var(--blue);color:#fff;box-shadow:0 12px 26px rgba(37,99,235,.22)}.btn-primary:hover{background:var(--blue-dark)}.btn-small{padding:9px 14px;border-radius:10px}.btn-light{background:#fff;color:var(--blue)}.btn-outline{border:1px solid rgba(255,255,255,.65);color:#fff}.section{padding:86px 0}.section-muted{background:var(--bg)}.hero{position:relative;overflow:hidden;color:#fff;background:radial-gradient(circle at 80% 20%,rgba(96,165,250,.55),transparent 36%),linear-gradient(135deg,#172554 0%,#2563eb 100%)}.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.95fr);gap:48px;align-items:center;min-height:560px}.eyebrow{margin:0 0 12px;color:#bfdbfe;font-weight:800;letter-spacing:.08em}.hero h1{font-size:clamp(36px,6vw,66px);line-height:1.08;margin:0 0 22px;letter-spacing:-.04em}.hero-text{max-width:620px;margin:0 0 30px;color:#dbeafe;font-size:20px}.hero-actions{display:flex;flex-wrap:wrap;gap:14px}.hero-card{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);border-radius:24px;padding:24px;box-shadow:0 30px 80px rgba(0,0,0,.2);backdrop-filter:blur(16px)}.terminal-bar{display:flex;align-items:center;gap:8px;margin-bottom:18px;color:#e0f2fe}.terminal-bar span{width:11px;height:11px;border-radius:99px;background:#f87171}.terminal-bar span:nth-child(2){background:#fbbf24}.terminal-bar span:nth-child(3){background:#34d399}.terminal-bar strong{margin-left:8px;font-size:14px}.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:0}.stats-grid div{padding:20px;border-radius:16px;background:rgba(15,23,42,.36)}.stats-grid dt{color:#bfdbfe;font-size:14px}.stats-grid dd{margin:6px 0 0;font-size:18px;font-weight:800}.section-head{text-align:center;max-width:720px;margin:0 auto 44px}.section-head.left{text-align:left;margin-left:0}.section-head h2{font-size:clamp(28px,4vw,42px);line-height:1.2;margin:0 0 12px;letter-spacing:-.03em}.section-head p{margin:0;color:var(--muted);font-size:18px}.cards{display:grid;gap:24px}.four-cols{grid-template-columns:repeat(4,1fr)}.three-cols{grid-template-columns:repeat(3,1fr)}.card,.product-card,.price-card,.contact-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.card{padding:28px;transition:transform .2s,box-shadow .2s}.card:hover,.product-card:hover,.price-card:hover{transform:translateY(-6px);box-shadow:0 26px 56px rgba(37,99,235,.14)}.icon{display:grid;place-items:center;width:54px;height:54px;margin-bottom:18px;border-radius:16px;background:#dbeafe;color:var(--blue);font-weight:900}.card h3,.product-card h3,.price-card h3{margin:0 0 10px;font-size:22px}.card p{margin:0;color:var(--muted)}.product-card{overflow:hidden;padding:0 0 24px}.product-card h3{padding:20px 24px;margin:0;background:var(--blue);color:#fff}.product-card ul,.price-card ul{padding:0 24px;margin:22px 0;list-style:none}.product-card li,.price-card li{position:relative;margin:10px 0;padding-left:24px;color:#4b5563}.product-card li:before,.price-card li:before{content:"✓";position:absolute;left:0;color:#16a34a;font-weight:900}.product-card a{display:inline-flex;margin-left:24px;color:#fff;background:var(--blue);border-radius:10px;padding:9px 14px;font-weight:800}.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}.price-card{position:relative;padding:30px 0;text-align:center}.price-card.featured{border:2px solid var(--blue);transform:scale(1.03)}.price{margin:10px 0 8px}.price strong{font-size:42px}.price span{color:var(--muted)}.price-card .btn{width:calc(100% - 48px);margin:0 24px}.badge{position:absolute;inset:0 0 auto 0;margin:0;background:var(--blue);color:#fff;padding:8px;font-weight:800;border-radius:14px 14px 0 0}.featured h3{margin-top:28px}.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:36px;align-items:start}.contact-list{padding:0;margin:28px 0 0;list-style:none}.contact-list li{margin:12px 0;color:#374151}.contact-list a{color:var(--blue)}.contact-form{padding:28px;display:grid;gap:16px}.contact-form label{display:grid;gap:7px;font-weight:700}.contact-form input,.contact-form textarea{width:100%;border:1px solid #d1d5db;border-radius:12px;padding:12px 14px;font:inherit}.contact-form input:focus,.contact-form textarea:focus{outline:3px solid rgba(37,99,235,.16);border-color:var(--blue)}.contact-form .btn{border:0;cursor:pointer}.site-footer{background:#0f172a;color:#cbd5e1;padding:58px 0 24px}.footer-grid{display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:32px}.footer-grid h3{color:#fff;margin:0 0 14px}.footer-grid a,.footer-grid p{display:block;color:#94a3b8;margin:7px 0}.brand-footer{margin-bottom:12px}.copyright{margin-top:38px;padding-top:22px;border-top:1px solid rgba(148,163,184,.18);color:#94a3b8;font-size:14px}.back-to-top{position:fixed;right:22px;bottom:22px;width:46px;height:46px;border:0;border-radius:999px;background:var(--blue);color:#fff;font-size:20px;box-shadow:var(--shadow);cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);transition:.2s}.back-to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}.reveal{opacity:0;transform:translateY(18px);transition:opacity .55s ease,transform .55s ease}.reveal.is-visible{opacity:1;transform:none}@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}.reveal{opacity:1;transform:none}}@media (max-width:960px){.four-cols,.three-cols,.pricing-grid,.contact-grid,.hero-grid,.footer-grid{grid-template-columns:1fr 1fr}.hero-grid{min-height:auto;padding:40px 0}.price-card.featured{transform:none}}@media (max-width:760px){.nav{min-height:64px}.menu-toggle{display:block}.menu{position:absolute;inset:64px 16px auto 16px;display:none;flex-direction:column;align-items:stretch;gap:0;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:10px}.menu.is-open{display:flex}.menu a{padding:12px}.nav-link:after{display:none}.section{padding:62px 0}.hero-grid,.four-cols,.three-cols,.pricing-grid,.contact-grid,.footer-grid{grid-template-columns:1fr}.hero h1{font-size:38px}.hero-text{font-size:17px}.stats-grid{grid-template-columns:1fr}.hero-actions .btn{width:100%}.brand-logo{width:36px;height:36px}}
