:root{--bg:#f7fbff;--ink:#13213a;--muted:#65758b;--blue:#2563eb;--pink:#ec4899;--violet:#8b5cf6;--cyan:#06b6d4;--line:rgba(37,99,235,.14);--card:rgba(255,255,255,.78);--r:30px;--shadow:0 24px 70px rgba(37,99,235,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Inter","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:radial-gradient(circle at 10% 6%,rgba(37,99,235,.18),transparent 22rem),radial-gradient(circle at 86% 10%,rgba(236,72,153,.16),transparent 24rem),linear-gradient(180deg,#fff,var(--bg) 54%,#eef6ff);overflow-x:hidden}body:before,body:after{content:"";position:fixed;border-radius:999px;pointer-events:none;z-index:-1;filter:blur(2px)}body:before{width:480px;height:480px;right:-160px;top:160px;background:linear-gradient(135deg,rgba(139,92,246,.18),rgba(6,182,212,.1))}body:after{width:360px;height:360px;left:-120px;bottom:80px;background:linear-gradient(135deg,rgba(236,72,153,.16),rgba(37,99,235,.12))}
a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(1180px,calc(100% - 40px));margin:0 auto}.topbar{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.78);backdrop-filter:blur(20px);border-bottom:1px solid var(--line)}.nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:inline-flex;align-items:center;gap:12px;font-weight:950}.logo{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;color:white;background:linear-gradient(135deg,var(--blue),var(--pink));box-shadow:0 14px 34px rgba(37,99,235,.22)}.links{display:flex;align-items:center;gap:10px;flex-wrap:wrap;color:var(--muted);font-size:14px}.links a,.lang{padding:10px 13px;border-radius:999px;border:1px solid transparent}.links a:hover,.links .active{color:var(--blue);background:rgba(37,99,235,.08);border-color:var(--line)}.lang{color:var(--violet);background:#fff;border-color:var(--line)}
.hero{position:relative;padding:86px 0 62px}.hero:before{content:"";position:absolute;width:220px;height:220px;left:48%;top:70px;border-radius:50%;background:linear-gradient(135deg,rgba(37,99,235,.18),rgba(236,72,153,.12));z-index:-1}.hero-grid,.split{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:center}.eyebrow{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:22px}.eyebrow span,.tag{display:inline-flex;padding:8px 12px;border-radius:999px;color:var(--blue);background:rgba(37,99,235,.08);border:1px solid var(--line);font-size:13px;font-weight:900}h1,h2,h3{margin:0;letter-spacing:-.05em}h1{font-size:clamp(44px,7vw,86px);line-height:1}h2{font-size:clamp(30px,4vw,52px);line-height:1.08;margin:14px 0}h3{font-size:20px;margin-bottom:10px}p{color:var(--muted);line-height:1.82}.lead{font-size:18px;max-width:760px;margin:24px 0}.actions{display:flex;gap:14px;flex-wrap:wrap;margin:28px 0}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 20px;border-radius:999px;font-weight:900;color:white;background:linear-gradient(135deg,var(--blue),var(--violet));box-shadow:0 16px 34px rgba(37,99,235,.18)}.btn-soft{color:var(--blue);background:white;border:1px solid var(--line);box-shadow:none}.trust{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:30px}.trust div,.card,.step,.faq-item,.codebox,.visual-card{border:1px solid var(--line);border-radius:var(--r);background:var(--card);backdrop-filter:blur(18px);box-shadow:var(--shadow)}.trust div{padding:16px}.trust b{display:block;color:var(--blue);font-size:22px}.trust span{color:var(--muted);font-size:13px}
.device{position:relative;padding:18px;border-radius:42px;border:1px solid var(--line);background:linear-gradient(135deg,rgba(255,255,255,.88),rgba(255,255,255,.58));box-shadow:var(--shadow);overflow:hidden}.device:before{content:"CLIENT";position:absolute;right:26px;top:26px;z-index:2;padding:8px 12px;border-radius:999px;background:white;color:var(--blue);border:1px solid var(--line);font-size:12px;font-weight:900}.device:after{content:"";position:absolute;width:160px;height:160px;left:-40px;bottom:-40px;border-radius:50%;background:linear-gradient(135deg,rgba(6,182,212,.25),rgba(236,72,153,.18))}.device img{border-radius:30px;aspect-ratio:4/5;object-fit:cover}
section{padding:74px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:28px}.section-head p{max-width:560px;margin:0}.grid{display:grid;gap:18px}.platforms{grid-template-columns:repeat(5,1fr)}.cards,.compat,.reco-grid,.use-grid{grid-template-columns:repeat(3,1fr)}.steps{grid-template-columns:repeat(3,1fr);counter-reset:step}.faq{grid-template-columns:repeat(2,1fr)}.card,.step,.faq-item{position:relative;padding:24px;overflow:hidden}.card:before,.step:before,.faq-item:before{content:"";position:absolute;width:84px;height:84px;right:-26px;top:-26px;border-radius:50%;background:linear-gradient(135deg,rgba(37,99,235,.16),rgba(236,72,153,.12))}.icon{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;margin-bottom:16px;color:white;background:linear-gradient(135deg,var(--blue),var(--cyan));font-weight:900}.meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}.meta span{font-size:12px;color:var(--muted);padding:7px 10px;border-radius:999px;background:#fff;border:1px solid var(--line)}.codebox{padding:24px;font-family:Consolas,"Courier New",monospace;color:#1747b5;line-height:1.9}.checklist{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:18px}.checklist span{border:1px solid var(--line);border-radius:999px;padding:14px;color:var(--muted);background:#fff}.visual-card{padding:16px;overflow:hidden}.visual-card img,.reco img{width:100%;object-fit:cover;border-radius:24px}.reco img{height:188px;margin-bottom:18px}.step:after{counter-increment:step;content:"Step " counter(step);display:inline-flex;margin-top:16px;padding:8px 12px;border-radius:999px;color:white;background:linear-gradient(135deg,var(--pink),var(--violet));font-size:12px;font-weight:900}.cta-box{text-align:center;border:1px solid var(--line);border-radius:44px;padding:52px;background:linear-gradient(135deg,rgba(255,255,255,.82),rgba(238,246,255,.84));box-shadow:var(--shadow)}.footer{padding:36px 0;border-top:1px solid var(--line);color:var(--muted)}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(5,1fr);gap:18px}.footer b{display:block;color:var(--ink);margin-bottom:10px}
@media(max-width:900px){.nav{align-items:flex-start;flex-direction:column;padding:16px 0}.hero-grid,.split,.platforms,.cards,.compat,.reco-grid,.use-grid,.steps,.faq,.checklist,.footer-grid{grid-template-columns:1fr}.section-head{display:block}h1{font-size:42px}}