@font-face{font-family:system-fly;src:local("Segoe UI");font-display:swap}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:#fafbfd;color:#19273c;font-family:system-fly,"Microsoft YaHei UI",system-ui,sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}button:disabled{opacity:.55;cursor:wait}button[hidden]{display:none}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #4489ff;outline-offset:5px}.container{max-width:1152px;padding:0 32px;margin:auto}header{height:82px;border-bottom:1px solid #e6eaf1;background:#fafbfdf2;position:sticky;top:0;z-index:5;backdrop-filter:blur(20px)}nav{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{font-size:22px;font-weight:750;letter-spacing:-.5px;display:flex;align-items:center;gap:10px}.brand 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i{display:inline-block;width:6px;height:6px;background:#d1d9e5;border-radius:100%;margin-left:5px}.desktop-content{min-height:282px;padding:34px 28px 27px;text-align:center;background:linear-gradient(#fcfdff,#f4f7fc)}.airplay-symbol{width:92px;height:76px;color:#2b6ade;margin:auto}.desktop-title{font-size:21px;font-weight:600;margin-top:12px}.receiver-name{padding:10px;margin:17px auto 13px;background:#fff;border:1px solid #e0e6f0;border-radius:7px;font-size:15px;max-width:290px}.ready{color:#7c8a9e;font-size:11px}.ready:before{content:"";display:inline-block;width:6px;height:6px;border-radius:100%;background:#3baf86;margin-right:6px}.desktop-footer{padding:10px 16px;color:#93a0b1;font-size:10px;border-top:1px solid #e9edf3}.phone{position:absolute;right:-6px;bottom:3px;width:104px;height:200px;border:5px solid #253247;border-radius:20px;background:#e4edfb;box-shadow:0 18px 25px #334f7725;display:grid;place-content:center;color:#2467db}.phone:before{content:"";position:absolute;top:5px;left:29px;width:36px;height:7px;background:#253247;border-radius:9px}.phone svg{width:40px;height:40px}.phone small{font-size:9px;text-align:center;margin-top:7px}.compat{display:flex;justify-content:center;gap:42px;flex-wrap:wrap;padding:25px 0 36px;color:#6a7890;font-size:13px;border-bottom:1px solid #e8ecf2}.compat strong{color:#273b59;font-weight:550;margin-right:8px}.section{padding:80px 0}.eyebrow{color:#3b75c6;font-size:11px;font-weight:750;letter-spacing:2px;text-transform:uppercase;margin-bottom:10px}h2{font-size:33px;letter-spacing:-1px;line-height:1.3;margin:0 0 14px}.intro{font-size:15px;color:#748096;max-width:600px;margin:0 0 32px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:#fff;border:1px solid #e2e8f1;border-radius:13px;padding:27px}.card 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