:root{--bg:#f5f7fa;--card:#fff;--ink:#172033;--muted:#657087;--accent:#7089b4;--accent-dark:#405b88;--line:#e6eaf0;--soft:#eaf0f8;--radius:34px;--shadow:0 18px 55px rgba(64,79,108,.10)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Arial Rounded MT Bold","PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.75}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(1160px,calc(100% - 40px));margin:auto}.nav{position:sticky;top:0;z-index:30;background:rgba(245,247,250,.9);backdrop-filter:blur(18px);border-bottom:1px solid rgba(230,234,240,.75)}.nav-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{font-size:24px;font-weight:900;letter-spacing:-1px}.brand-dot{color:var(--accent)}.nav-links{display:flex;align-items:center;gap:22px;font-size:14px}.nav-links a:hover{color:var(--accent-dark)}.nav-toggle{display:none;border:0;background:var(--card);border-radius:999px;padding:11px 15px;font-size:18px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:13px 24px;border-radius:999px;background:var(--accent-dark);color:#fff;font-weight:800;box-shadow:0 10px 24px rgba(64,91,136,.22);transition:.2s transform,.2s box-shadow}.btn:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(64,91,136,.28)}.btn.secondary{background:#fff;color:var(--ink);border:1px solid var(--line);box-shadow:none}.hero{padding:74px 0 50px}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:center}.eyebrow,.pill{display:inline-flex;padding:8px 14px;border-radius:999px;background:var(--soft);color:var(--accent-dark);font-weight:800;font-size:13px}.hero h1{font-size:clamp(48px,7vw,86px);line-height:1.04;letter-spacing:-4px;margin:20px 0}.hero p{font-size:19px;color:var(--muted);max-width:650px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.hero-art{min-height:480px;border-radius:64px;background:linear-gradient(145deg,#fff,#e6ecf5);box-shadow:var(--shadow);position:relative;overflow:hidden}.orb{position:absolute;border-radius:50%;filter:drop-shadow(0 25px 35px rgba(67,86,120,.14))}.orb.one{width:290px;height:290px;background:#dce5f2;right:-35px;top:-20px}.orb.two{width:220px;height:220px;background:#fff;left:46px;bottom:35px}.orb.three{width:120px;height:120px;background:#aebfd8;left:75px;top:70px}.speed-card{position:absolute;right:38px;bottom:52px;width:230px;background:rgba(255,255,255,.86);border:1px solid #fff;border-radius:32px;padding:24px;box-shadow:var(--shadow)}.speed-card strong{font-size:38px;display:block}.section{padding:76px 0}.section-head{max-width:720px;margin-bottom:34px}.section h2{font-size:clamp(34px,5vw,56px);line-height:1.15;letter-spacing:-2px;margin:12px 0}.section-head p,.muted{color:var(--muted)}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.card{background:var(--card);border:1px solid rgba(230,234,240,.8);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}.icon{width:58px;height:58px;border-radius:22px;background:var(--soft);display:grid;place-items:center;font-size:26px;margin-bottom:24px}.card h3{font-size:22px;margin:0 0 10px}.support-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}.support-panel{min-height:340px;background:#dfe7f2;border-radius:48px;padding:38px;position:relative;overflow:hidden}.support-panel.alt{background:#eef0f3}.logo-cloud{display:flex;flex-wrap:wrap;gap:12px;margin-top:40px}.logo-cloud span{padding:12px 18px;background:rgba(255,255,255,.72);border-radius:999px;font-weight:800}.pricing{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.price-card{background:#fff;border-radius:34px;padding:28px;border:1px solid var(--line);position:relative}.price-card.featured{background:var(--accent-dark);color:#fff;transform:translateY(-8px)}.price{font-size:42px;font-weight:900;line-height:1;margin:18px 0}.price small{font-size:14px;font-weight:500}.price-card ul{padding:0;list-style:none;margin:22px 0}.price-card li{margin:10px 0}.price-card li:before{content:"✓";margin-right:8px;color:#8ca4c8}.price-card.featured .btn{background:#fff;color:var(--accent-dark);box-shadow:none}.note{font-size:13px;color:var(--muted);margin-top:18px}.featured .note{color:#dce6f5}.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.quote{font-size:18px}.person{display:flex;align-items:center;gap:12px;margin-top:22px}.avatar{width:44px;height:44px;border-radius:50%;background:var(--soft);display:grid;place-items:center;font-weight:900}.faq{display:grid;gap:12px}.faq details{background:#fff;border-radius:24px;padding:22px 26px;border:1px solid var(--line)}.faq summary{cursor:pointer;font-weight:900}.faq p{color:var(--muted);margin-bottom:0}.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.news-card{background:#fff;border-radius:30px;padding:26px;border:1px solid var(--line);transition:.2s transform}.news-card:hover{transform:translateY(-4px)}.news-card h3{font-size:20px;line-height:1.45}.news-meta{font-size:13px;color:var(--muted)}.footer{padding:40px 0 52px;border-top:1px solid var(--line)}.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:20px}.footer-links{display:flex;gap:22px;flex-wrap:wrap}.article-hero{padding:70px 0 30px}.article-hero h1{font-size:clamp(38px,6vw,64px);line-height:1.18;letter-spacing:-2px;max-width:900px}.article{max-width:820px;margin:0 auto;padding:20px 0 80px}.article h2{font-size:30px;margin-top:42px}.article p{font-family:"PingFang SC","Microsoft YaHei",sans-serif;font-size:17px;color:#394359}.article .resource{background:var(--soft);padding:20px 24px;border-radius:22px;margin:30px 0}.article .resource a{color:var(--accent-dark);font-weight:800;text-decoration:underline}.legal{max-width:900px;margin:auto;padding:70px 0}.legal h1{font-size:52px}.legal h2{margin-top:34px}.legal p,.legal li{font-family:"PingFang SC","Microsoft YaHei",sans-serif;color:#465168}.sitemap-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.sitemap-list a{background:#fff;padding:18px 20px;border-radius:18px;border:1px solid var(--line)}
@media(max-width:900px){.nav-toggle{display:block}.nav-links{display:none;position:absolute;left:20px;right:20px;top:70px;flex-direction:column;align-items:stretch;background:#fff;border-radius:26px;padding:20px;box-shadow:var(--shadow)}.nav-links.open{display:flex}.hero-grid,.support-grid{grid-template-columns:1fr}.hero-art{min-height:380px}.grid-3,.reviews,.news-grid{grid-template-columns:1fr}.pricing{grid-template-columns:repeat(2,1fr)}.price-card.featured{transform:none}.footer-inner{align-items:flex-start;flex-direction:column}}
@media(max-width:560px){.container{width:min(100% - 24px,1160px)}.hero{padding-top:46px}.hero h1{font-size:48px;letter-spacing:-2px}.hero-art{min-height:320px;border-radius:42px}.orb.one{width:210px;height:210px}.orb.two{width:160px;height:160px}.speed-card{right:18px;bottom:22px;width:205px}.section{padding:56px 0}.section h2{font-size:38px}.pricing{grid-template-columns:1fr}.btn{width:100%;min-height:56px}.actions{flex-direction:column}.footer-links{display:grid;grid-template-columns:1fr 1fr;width:100%}.sitemap-list{grid-template-columns:1fr}.article-hero h1{font-size:40px}.legal h1{font-size:42px}}