:root{--bg:#f4f9fb;--card:#fff;--text:#17232c;--muted:#6d7a82;--blue:#2f9ad7;--blue2:#0f7fc2;--line:#e3edf1;--shadow:0 10px 30px rgba(20,50,70,.08)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:Arial,'Noto Sans SC',sans-serif;background:var(--bg);color:var(--text);padding-bottom:92px}a{text-decoration:none;color:inherit}button{font:inherit}.app-bar{position:sticky;top:0;z-index:10;height:56px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;background:rgba(244,249,251,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(227,237,241,.9)}.brand{display:flex;align-items:center;gap:10px;font-size:16px}.logo{width:28px;height:28px;border-radius:50%;background:var(--blue);position:relative;box-shadow:0 6px 14px rgba(47,154,215,.28)}.logo:before{content:'';position:absolute;left:7px;top:8px;width:13px;height:10px;background:#fff;clip-path:polygon(0 50%,100% 0,70% 100%,48% 68%,28% 82%)}.more-button{display:grid;gap:3px;background:transparent;padding:8px}.more-button i{display:block;width:4px;height:4px;border-radius:50%;background:#52606a}.hero{padding:24px 16px 10px;text-align:center}.hero-copy .tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:2px;color:var(--blue2);margin-bottom:14px}.hero h1{margin:0;font-size:34px;line-height:1.08;letter-spacing:-1px}.hero h1 em{font-style:normal;color:var(--blue)}.hero p{margin:14px auto 0;max-width:310px;color:var(--muted);font-size:14px;line-height:1.8}.hero-image{position:relative;margin:22px auto 0;max-width:360px}.halo{position:absolute;inset:22px 28px 22px 28px;border-radius:38px;background:radial-gradient(circle at center,#daf2f7 0%,#eaf8fc 42%,transparent 72%)}.hero-image img{position:relative;z-index:1;width:100%;display:block;filter:drop-shadow(0 18px 25px rgba(23,42,55,.18))}.intro,.benefits,.store-card{margin:14px 16px 0;background:var(--card);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}.intro{padding:16px 16px 18px;text-align:center}.online-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#11b873;box-shadow:0 0 0 5px rgba(17,184,115,.12);vertical-align:middle;margin-right:10px}.intro b{font-size:15px}.intro p{margin:10px 0 0;color:var(--muted);font-size:13px}.benefits{padding:8px 14px}.benefits article{display:flex;gap:12px;padding:14px 4px;border-bottom:1px solid var(--line)}.benefits article:last-child{border-bottom:0}.benefit-icon{flex:0 0 40px;width:40px;height:40px;border-radius:14px;display:grid;place-items:center;font-size:18px}.lightning{background:#eaf6ff;color:var(--blue2)}.lock{background:#edf8f2;color:#16a571}.group{background:#f4efff;color:#7d5ed9}.benefits h2{margin:1px 0 6px;font-size:16px}.benefits p{margin:0;color:var(--muted);font-size:13px;line-height:1.6}.store-card{display:grid;grid-template-columns:96px 1fr;gap:14px;align-items:center;padding:14px}.store-card img{width:96px;height:96px;object-fit:cover;border-radius:20px}.store-card span{font-size:11px;font-weight:700;letter-spacing:1.4px;color:var(--blue2)}.store-card h2{margin:7px 0 8px;font-size:20px;line-height:1.2}.store-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.7}footer{padding:18px 16px 0;color:#8a979e;font-size:12px;text-align:center}.download-dock{position:fixed;left:0;right:0;bottom:0;z-index:20;padding:12px 16px calc(12px + env(safe-area-inset-bottom));background:linear-gradient(to top,rgba(244,249,251,.98),rgba(244,249,251,.72),transparent)}.download-dock a{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:15px 16px;border-radius:16px;background:var(--blue);color:#fff;font-weight:700;box-shadow:0 12px 25px rgba(47,154,215,.34)}.download-dock a:active{transform:scale(.99)}.download-symbol{font-size:18px}.download-dock small{display:block;font-weight:400;opacity:.92;font-size:11px}@media (min-width:768px){body{max-width:420px;margin:0 auto;background:#eef4f7;padding-bottom:102px;box-shadow:0 0 0 1px rgba(0,0,0,.03)}.app-bar{max-width:420px;margin:0 auto}.download-dock{max-width:420px;margin:0 auto}}