:root{--bg:#f7f9fc;--surface:rgba(255,255,255,.9);--text:#172033;--muted:#667085;--line:#e5eaf2;--primary:#3b82f6;--primary2:#46c8ff;--shadow:0 18px 50px rgba(23,32,51,.08);--radius:24px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC",sans-serif;color:var(--text);background:radial-gradient(circle at 12% 0%,rgba(70,200,255,.15),transparent 30%),radial-gradient(circle at 88% 8%,rgba(91,140,255,.12),transparent 28%),var(--bg);line-height:1.65}a{color:inherit}.container{width:min(1120px,calc(100% - 40px));margin:0 auto}.nav{position:sticky;top:0;z-index:10;backdrop-filter:blur(18px);background:rgba(247,249,252,.78);border-bottom:1px solid rgba(229,234,242,.8)}.nav-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{font-weight:800;letter-spacing:-.02em;text-decoration:none}.nav-links{display:flex;gap:20px;color:var(--muted);font-size:14px}.nav-links a{text-decoration:none}.hero{padding:96px 0 72px}.eyebrow{display:inline-flex;padding:7px 12px;border-radius:999px;background:rgba(59,130,246,.09);color:#2563eb;font-size:13px;font-weight:700}h1{max-width:820px;margin:24px 0 18px;font-size:clamp(44px,7vw,78px);line-height:1.02;letter-spacing:-.055em}.lead{max-width:690px;font-size:20px;color:var(--muted)}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 20px;border-radius:14px;border:1px solid var(--line);background:white;text-decoration:none;font-weight:750}.button.primary{color:white;border:0;background:linear-gradient(135deg,var(--primary),var(--primary2));box-shadow:0 14px 30px rgba(59,130,246,.2)}.section{padding:34px 0 72px}.section h2{font-size:32px;letter-spacing:-.035em;margin:0 0 10px}.section-intro{color:var(--muted);margin:0 0 28px}.card{background:var(--surface);border:1px solid rgba(229,234,242,.9);border-radius:var(--radius);box-shadow:var(--shadow);padding:32px}.product-head{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;margin-bottom:22px}.product-name{font-size:30px;font-weight:850;letter-spacing:-.035em}.badge{white-space:nowrap;padding:7px 11px;border-radius:999px;background:#eef4ff;color:#2457c5;font-size:13px;font-weight:750}.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:24px}.feature{padding:18px;border-radius:18px;background:#fbfcfe;border:1px solid var(--line)}.feature strong{display:block;margin-bottom:5px}.feature span{color:var(--muted);font-size:14px}.page{padding:64px 0 84px}.page h1{font-size:clamp(40px,6vw,64px);max-width:none}.prose{background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:clamp(24px,5vw,48px)}.prose h2{margin-top:34px;font-size:24px;letter-spacing:-.02em}.prose p,.prose li{color:#475467}.prose ul{padding-left:22px}.notice{border-left:4px solid var(--primary);background:#f2f7ff;padding:16px 18px;border-radius:0 14px 14px 0}.footer{padding:28px 0 42px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}.footer-inner{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.footer-links{display:flex;gap:16px}.footer a{text-decoration:none}@media(max-width:820px){.feature-grid{grid-template-columns:repeat(2,1fr)}.product-head{flex-direction:column}}@media(max-width:560px){.container{width:min(100% - 28px,1120px)}.nav-links{gap:12px;font-size:13px}.hero{padding-top:70px}.feature-grid{grid-template-columns:1fr}.card{padding:24px}}