:root{--bg: #ffffff;--bg-alt: #f8fafc;--surface: #ffffff;--text: #0f172a;--text-2: #475569;--text-3: #94a3b8;--border: #e2e8f0;--border-2: #cbd5e1;--primary: #2563eb;--primary-hover: #1d4ed8;--accent: #06b6d4;--gradient: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);--shadow: 0 1px 3px rgba(0, 0, 0, .05);--shadow-lg: 0 10px 40px rgba(37, 99, 235, .15)}a{color:inherit;text-decoration:none}ul{list-style:none}.container{max-width:1180px;margin:0 auto;padding:0 24px}.nav{position:sticky;top:0;z-index:100;background:#ffffffd9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.nav-inner{display:flex;align-items:center;justify-content:space-between;max-width:1180px;margin:0 auto;padding:16px 24px}.brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:18px}.brand-logo{font-size:24px}.nav-links{display:flex;gap:32px}.nav-links a{color:var(--text-2);font-size:14px;transition:color .2s}.nav-links a:hover{color:var(--primary)}.nav-actions{display:flex;gap:12px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:8px 18px;font-size:14px;font-weight:500;border-radius:8px;transition:all .2s;cursor:pointer;border:none}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-ghost{background:transparent;color:var(--text-2)}.btn-ghost:hover{background:var(--bg-alt);color:var(--text)}.btn-lg{padding:14px 32px;font-size:16px}.btn-block{display:flex;width:100%}.hero{padding:120px 0 100px;text-align:center;background:linear-gradient(180deg,#f0f9ff,#fff)}.hero-badge{display:inline-block;padding:6px 14px;background:#dbeafe;color:#1d4ed8;border-radius:999px;font-size:13px;margin-bottom:24px}.hero-title{font-size:64px;font-weight:800;line-height:1.15;letter-spacing:-1.5px;margin-bottom:24px}.gradient{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle{font-size:18px;color:var(--text-2);margin-bottom:40px}.hero-cta{display:flex;gap:16px;justify-content:center;margin-bottom:80px}.hero-stats{display:flex;gap:80px;justify-content:center;padding-top:40px;border-top:1px solid var(--border)}.hero-stats>div{color:var(--text-2);font-size:14px}.hero-stats strong{display:block;font-size:36px;font-weight:700;color:var(--primary);margin-bottom:4px}.section{padding:100px 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solid var(--primary)}.pricing-badge{position:absolute;top:-12px;left:50%;transform:translate(-50%);background:var(--primary);color:#fff;padding:4px 12px;border-radius:999px;font-size:12px}.pricing-tier{font-size:18px;font-weight:600;color:var(--text-2);margin-bottom:16px}.pricing-price{font-size:48px;font-weight:800;margin-bottom:24px}.pricing-price span{color:var(--primary)}.pricing-list{margin-bottom:32px}.pricing-list li{padding:8px 0;color:var(--text-2);font-size:14px}.footer{background:#0f172a;color:#cbd5e1;padding:80px 0 32px;margin-top:60px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1fr;gap:40px;padding-bottom:60px;border-bottom:1px solid #1e293b}.footer h4{color:#fff;margin-bottom:16px;font-size:14px}.footer a{display:block;padding:6px 0;color:#94a3b8;font-size:13px;transition:color .2s}.footer a:hover{color:#fff}.footer-desc{margin-top:12px;font-size:13px;color:#64748b}.footer-bottom{padding-top:32px;text-align:center;color:#475569;font-size:12px}.footer-bottom .beian{color:#94a3b8}.beian{display:inline-flex;align-items:center;gap:6px;color:#94a3b8}.beian:hover{color:#fff}.beian-icon{display:inline-block;width:14px;height:14px}@media (max-width: 900px){.nav-links{display:none}.grid-3,.grid-4{grid-template-columns:1fr}.hero-title{font-size:36px}.hero-stats{gap:32px}.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}:root{--bg: #ffffff;--bg-alt: #f8fafc;--text: #0f172a;--text-2: #475569;--text-3: #94a3b8;--border: #e2e8f0;--primary: #2563eb;--primary-hover: #1d4ed8;--gradient: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%)}*{box-sizing:border-box;margin:0;padding:0}html,body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}