:root{--bg:#f5f7fb;--ink:#111827;--muted:#687386;--blue:#0a84ff;--purple:#7c3aed;--green:#34c759;--line:#e5eaf2;--card:#fff;--r:28px;--shadow:0 20px 55px rgba(17,24,39,.09)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:linear-gradient(180deg,#fff,var(--bg));overflow-x:hidden}
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,.82);backdrop-filter:blur(22px);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:900}.logo{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--blue),var(--purple));box-shadow:0 16px 30px rgba(10,132,255,.22)}.links{display:flex;align-items:center;gap:8px;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:#edf6ff;border-color:#d8ebff}.lang{color:var(--blue);background:#fff;border-color:var(--line)}
.hero{position:relative;padding:84px 0 60px}.hero:before{content:"";position:absolute;right:8%;top:76px;width:340px;height:340px;border-radius:80px;background:linear-gradient(135deg,rgba(10,132,255,.16),rgba(124,58,237,.12));transform:rotate(18deg);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:#edf6ff;border:1px solid #d8ebff;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 22px;border-radius:999px;font-weight:900;color:white;background:var(--blue);box-shadow:0 16px 34px rgba(10,132,255,.2)}.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);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:#fff;box-shadow:var(--shadow);overflow:hidden}.device:before{content:"GET";position:absolute;right:24px;top:24px;z-index:2;padding:9px 15px;border-radius:999px;background:var(--blue);color:white;font-size:12px;font-weight:950}.device:after{content:"4.9";position:absolute;left:28px;bottom:28px;z-index:2;width:62px;height:62px;border-radius:18px;display:grid;place-items:center;background:rgba(255,255,255,.9);border:1px solid var(--line);color:var(--ink);font-weight:950}.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}.icon{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;margin-bottom:16px;color:white;background:linear-gradient(135deg,var(--blue),var(--purple));font-weight:950}.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:#f4f7fb;border:1px solid var(--line)}.codebox{padding:24px;font-family:Consolas,"Courier New",monospace;color:#0a4fb3;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:18px;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:22px}.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:var(--green);font-size:12px;font-weight:950}.cta-box{text-align:center;border:1px solid var(--line);border-radius:44px;padding:52px;background:linear-gradient(135deg,#fff,#eef6ff);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}}