:root{color-scheme:light;--bg:#ffffff;--panel:#ffffff;--panel2:#f7f9fc;--muted:#667085;--text:#101828;--line:#e6eaf0;--line2:#d0d7e2;--accent:#155dfc;--accent2:#00a5ef;--green:#00bb7f;--radius:20px;--shadow:0 18px 60px rgba(16,24,40,.08)}*{box-sizing:border-box}html{background:var(--bg)}body{margin:0;font-family:"Public Sans",Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;background:radial-gradient(circle at 12% 8%,rgba(21,93,252,.12),transparent 32%),radial-gradient(circle at 88% 12%,rgba(0,187,127,.1),transparent 30%),linear-gradient(180deg,#fff 0%,#f7faff 48%,#fff 100%);color:var(--text);min-height:100vh;overflow-x:hidden}body:before{content:"";position:fixed;inset:0;pointer-events:none;background:linear-gradient(rgba(21,93,252,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(21,93,252,.045) 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(to bottom,rgba(0,0,0,.8),transparent 72%)}a{color:inherit;text-decoration:none}.nav{position:sticky;top:0;z-index:5;max-width:1180px;margin:0 auto;padding:16px 22px;display:flex;align-items:center;justify-content:space-between;backdrop-filter:blur(16px);background:rgba(255,255,255,.72);border-bottom:1px solid rgba(230,234,240,.72)}.brand{display:flex;gap:10px;align-items:center;font-weight:800;letter-spacing:.03em}.logo{width:32px;height:32px;border-radius:11px;background:linear-gradient(135deg,var(--accent),var(--accent2));box-shadow:0 10px 28px rgba(21,93,252,.22)}.navlinks{display:flex;gap:8px;color:var(--muted);font-size:14px}.navlinks a{padding:8px 12px;border-radius:999px}.navlinks a:hover{background:#eef4ff;color:#155dfc}.wrap{max-width:1180px;margin:0 auto;padding:48px 22px 84px}.hero{position:relative;padding:68px 0 42px}.badge{display:inline-flex;gap:8px;align-items:center;padding:8px 14px;border:1px solid #d8e6ff;border-radius:999px;background:rgba(21,93,252,.06);color:#155dfc;font-size:14px;box-shadow:0 10px 34px rgba(21,93,252,.08)}.badge i{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 16px rgba(0,187,127,.55)}h1{font-size:clamp(40px,6.4vw,78px);line-height:1.05;margin:22px 0 18px;letter-spacing:-.055em}.grad{background:linear-gradient(90deg,#101828,#155dfc,#00a5ef);-webkit-background-clip:text;background-clip:text;color:transparent}.lead{max-width:790px;color:var(--muted);font-size:clamp(16px,1.8vw,20px);line-height:1.8}.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border-radius:14px;border:1px solid var(--line2);font-weight:700;background:#fff;color:#101828;transition:.18s ease;box-shadow:0 8px 24px rgba(16,24,40,.05)}.btn.primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;border-color:transparent;box-shadow:0 16px 42px rgba(21,93,252,.22)}.btn:hover{transform:translateY(-1px);box-shadow:0 16px 42px rgba(16,24,40,.1)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:44px}.card{position:relative;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(180deg,rgba(255,255,255,.98),rgba(247,250,255,.96));padding:24px;box-shadow:var(--shadow);overflow:hidden}.card:after{content:"";position:absolute;inset:auto -30% -45% -30%;height:100px;background:radial-gradient(circle,rgba(21,93,252,.11),transparent 65%)}.card h3{margin:0 0 10px;font-size:20px}.card p{margin:0;color:var(--muted);line-height:1.7}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:26px}.stat{padding:18px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.82);box-shadow:0 12px 34px rgba(16,24,40,.05)}.num{font-size:26px;font-weight:900;color:#155dfc}.label{color:var(--muted);font-size:13px;margin-top:6px}.section-title{margin:64px 0 20px;font-size:30px}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.step{padding:20px;border:1px solid var(--line);border-left:3px solid var(--accent);background:#fff;border-radius:18px;box-shadow:0 12px 36px rgba(16,24,40,.05)}.step p{color:var(--muted);line-height:1.7}.qr{display:grid;grid-template-columns:1.1fr .9fr;gap:22px;align-items:center}.qrbox{min-height:240px;border:1px dashed #b8c7dc;border-radius:22px;display:flex;align-items:center;justify-content:center;text-align:center;color:var(--muted);background:linear-gradient(180deg,#fff,#f6f9ff)}.wechat-qr{max-width:220px;width:80%;height:auto;border-radius:16px;background:#fff;padding:10px;box-shadow:0 18px 60px rgba(16,24,40,.16)}footer{color:var(--muted);text-align:center;padding:34px 22px;border-top:1px solid var(--line);background:rgba(255,255,255,.7)}@media(max-width:820px){.grid,.stats,.steps,.qr{grid-template-columns:1fr}.nav{align-items:flex-start}.navlinks{flex-wrap:wrap;justify-content:flex-end}.hero{padding-top:34px}h1{font-size:42px}}