*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
    --primary:#3b82f6;
    --primary-hover:#2563eb;
    --primary-bg:#eff6ff;
    --text:#0f172a;
    --text-secondary:#64748b;
    --text-tertiary:#94a3b8;
    --bg:#fff;
    --bg-page:#f8fafc;
    --border:#e2e8f0;
    --border-light:#f1f5f9
}
body{font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Helvetica Neue','Microsoft YaHei',sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{text-decoration:none;color:inherit}
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-light)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 32px;display:flex;align-items:center;justify-content:space-between;height:64px}
.nav-brand{font-size:18px;font-weight:700;color:var(--text)}.nav-brand span{color:var(--primary)}
.nav-links{display:flex;gap:32px;font-size:14px;color:var(--text-secondary)}.nav-links a:hover{color:var(--text)}
.nav-actions{display:flex;gap:10px}
.btn-ghost{padding:8px 20px;border-radius:6px;font-size:14px;font-weight:500;border:1px solid var(--border);background:#fff;color:var(--text);transition:all .2s}.btn-ghost:hover{border-color:#cbd5e1;background:var(--bg-page)}
.btn-solid{padding:8px 20px;border-radius:6px;font-size:14px;font-weight:500;border:none;background:var(--primary);color:#fff;transition:all .2s}.btn-solid:hover{background:var(--primary-hover)}
.hero{position:relative;padding:150px 32px 100px;text-align:center;background:var(--primary-bg);}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:20px;font-size:13px;background:var(--primary-bg);border:1px solid #dbeafe;color:var(--primary);margin-bottom:28px;font-weight:500}
.hero h1{font-size:52px;font-weight:800;line-height:1.2;letter-spacing:-1px;margin-bottom:20px;}
.hero p{font-size:18px;color:var(--text-secondary);max-width:580px;margin:0 auto 40px;line-height:1.7}
.hero-btns{display:flex;gap:14px;justify-content:center}
.btn-hero-primary{padding:14px 36px;border-radius:8px;font-size:16px;font-weight:600;border:none;background:var(--primary);color:#fff;transition:all .2s;box-shadow:0 2px 12px rgba(0,0,0,.08)}.btn-hero-primary:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 4px 20px rgba(0,0,0,.12)}
.btn-hero-secondary{padding:14px 36px;border-radius:8px;font-size:16px;font-weight:600;border:1px solid var(--border);background:#fff;color:var(--text);transition:all .2s}.btn-hero-secondary:hover{border-color:#cbd5e1;background:var(--bg-page)}
.stats-bar{max-width:1200px;margin:-48px auto 0;padding:0 32px;position:relative;z-index:2}
.stats-inner{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--border);border-radius:16px;overflow:hidden;box-shadow:0 4px 24px rgba(0,0,0,.04)}
.stat-item{padding:32px;text-align:center;border-right:1px solid var(--border-light)}.stat-item:last-child{border-right:none}
.stat-num{font-size:36px;font-weight:800;font-variant-numeric:tabular-nums}.stat-num span{color:var(--primary);font-size:20px;font-weight:600}
.stat-label{font-size:14px;color:var(--text-secondary);margin-top:6px}
.section{max-width:1200px;margin:0 auto;padding:100px 32px}
.section-label{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--primary);font-weight:600;letter-spacing:1px;margin-bottom:12px}
.section-title{font-size:36px;font-weight:700;margin-bottom:16px;line-height:1.3}
.section-desc{font-size:16px;color:var(--text-secondary);max-width:560px;line-height:1.7}
.products-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:48px}
.product-card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:36px;transition:all .3s;box-shadow:0 1px 3px rgba(0,0,0,.03)}.product-card:hover{border-color:#bfdbfe;box-shadow:0 4px 16px rgba(0,0,0,.06);transform:translateY(-2px)}
.product-icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:20px}.product-icon.blue{background:#eff6ff;color:var(--primary)}
.product-card h3{font-size:20px;font-weight:600;margin-bottom:10px}.product-card p{font-size:14px;color:var(--text-secondary);line-height:1.7;margin-bottom:20px}
.product-tags{display:flex;gap:8px;flex-wrap:wrap}.product-tag{padding:4px 12px;border-radius:4px;font-size:12px;background:var(--bg-page);color:var(--text-secondary);border:1px solid var(--border-light)}
.features-section{background:var(--bg-page)}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:48px}
.feature-card{background:#fff;border:1px solid var(--border-light);border-radius:16px;padding:32px;transition:all .3s}.feature-card:hover{border-color:#dbeafe;box-shadow:0 2px 12px rgba(0,0,0,.04)}
.feature-num{font-size:13px;font-weight:700;color:var(--primary);margin-bottom:16px}
.feature-card h4{font-size:16px;font-weight:600;margin-bottom:8px}.feature-card p{font-size:14px;color:var(--text-secondary);line-height:1.7}
.flow-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:48px;position:relative}
.flow-steps::before{content:'';position:absolute;top:36px;left:10%;right:10%;height:1px;background:linear-gradient(90deg,transparent,var(--border),var(--border),transparent)}
.flow-step{text-align:center;position:relative}
.flow-dot{width:72px;height:72px;border-radius:50%;margin:0 auto 20px;display:flex;align-items:center;justify-content:center;background:#fff;border:1px solid var(--border);font-size:24px;position:relative;z-index:1;color:var(--primary);box-shadow:0 2px 8px rgba(0,0,0,.04)}
.flow-step h4{font-size:15px;font-weight:600;margin-bottom:6px}.flow-step p{font-size:13px;color:var(--text-secondary);padding:0 12px}
.pricing-section{background:var(--bg-page)}
.pricing-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:48px}
.pricing-card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:40px;position:relative;box-shadow:0 1px 3px rgba(0,0,0,.03)}
.pricing-card.featured{border-color:var(--primary);border-width:2px}
.pricing-card.featured::before{content:'推荐';position:absolute;top:16px;right:16px;padding:4px 12px;border-radius:4px;font-size:12px;font-weight:600;background:var(--primary);color:#fff}
.pricing-type{font-size:13px;color:var(--primary);font-weight:600;margin-bottom:8px}
.pricing-card h3{font-size:22px;font-weight:700;margin-bottom:8px}
.pricing-card .desc{font-size:14px;color:var(--text-secondary);margin-bottom:24px;line-height:1.6}
.pricing-price{font-size:40px;font-weight:800;margin-bottom:4px}.pricing-price span{font-size:14px;font-weight:400;color:var(--text-secondary)}
.pricing-unit{font-size:13px;color:var(--text-tertiary);margin-bottom:28px}
.pricing-features{list-style:none;margin-bottom:28px}
.pricing-features li{padding:8px 0;font-size:14px;color:var(--text-secondary);display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--border-light)}
.pricing-features li::before{content:'✓';color:#059669;font-weight:700;font-size:13px}
.btn-pricing{display:block;width:100%;padding:12px;border-radius:8px;font-size:15px;font-weight:600;text-align:center;cursor:pointer;transition:all .2s;border:none}
.btn-pricing.primary{background:var(--primary);color:#fff}.btn-pricing.primary:hover{background:var(--primary-hover)}
.btn-pricing.outline{background:#fff;color:var(--text);border:1px solid var(--border)}.btn-pricing.outline:hover{border-color:#cbd5e1;background:var(--bg-page)}
.scenarios-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:48px}
.scenario-card{background:#fff;border:1px solid var(--border-light);border-radius:12px;padding:28px 24px;text-align:center;transition:all .3s}.scenario-card:hover{border-color:#dbeafe;box-shadow:0 2px 12px rgba(0,0,0,.04);transform:translateY(-2px)}
.scenario-icon{font-size:32px;margin-bottom:14px}.scenario-card h4{font-size:15px;font-weight:600;margin-bottom:6px}.scenario-card p{font-size:13px;color:var(--text-secondary);line-height:1.6}
.cta{text-align:center;padding:100px 32px;background:linear-gradient(180deg,#fff 0%,#f0f5ff 100%)}
.cta h2{font-size:36px;font-weight:700;margin-bottom:16px}.cta p{font-size:16px;color:var(--text-secondary);margin-bottom:36px}
.footer-wrap{background:#fff;border-top:1px solid #e2e8f0}.footer{padding:48px 32px;max-width:1200px;margin:0 auto}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}
.footer-brand h3{font-size:16px;font-weight:700;margin-bottom:10px}.footer-brand h3 span{color:var(--primary)}
.footer-brand p{font-size:13px;color:var(--text-secondary);line-height:1.7}
.footer-col h4{font-size:13px;font-weight:600;color:var(--text-tertiary);margin-bottom:14px;letter-spacing:.5px}
.footer-col a{display:block;font-size:14px;color:var(--text-secondary);padding:4px 0;transition:color .2s}.footer-col a:hover{color:var(--text)}
.footer-bottom{margin-top:40px;padding-top:24px;border-top:1px solid var(--border-light);font-size:13px;color:var(--text-tertiary);text-align:center;display:flex;flex-direction:column;align-items:center;gap:8px}
.footer-icp{display:inline-flex;align-items:center;gap:6px;color:var(--text-tertiary);transition:color .2s}.footer-icp:hover{color:var(--primary)}
@media(max-width:768px){.nav-links{display:none}.hero h1{font-size:32px}.hero p{font-size:15px}.hero-btns{flex-direction:column;align-items:center}.stats-inner{grid-template-columns:repeat(2,1fr)}.stat-item:nth-child(2){border-right:none}.products-grid,.pricing-grid{grid-template-columns:1fr}.features-grid{grid-template-columns:1fr}.flow-steps{grid-template-columns:repeat(2,1fr);gap:24px}.flow-steps::before{display:none}.scenarios-grid{grid-template-columns:repeat(2,1fr)}.footer-inner{grid-template-columns:1fr 1fr}.section-title{font-size:28px}}