/* zpfu.com CSS v4 2026.04.06 */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;font-size:16px;line-height:1.6;color:#334155;background:#fff;overflow-x:hidden;-webkit-text-size-adjust:100%}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

 .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:10px;font-weight:600;cursor:pointer;border:none;transition:all 0.3s;font-size:15px}
.btn-primary{background:linear-gradient(135deg,#2563eb,#06b6d4);color:#fff;box-shadow:0 4px 14px rgba(37,99,235,0.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(37,99,235,0.45)}
.btn-outline{background:transparent;color:#2563eb;border:2px solid #2563eb}
.btn-outline:hover{background:#2563eb;color:#fff}
.btn-lg{padding:16px 32px;font-size:18px}
.btn-sm{padding:8px 16px;font-size:13px}
.btn-block{width:100%}
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(15,23,42,0.97);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,0.06)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:10px}
.logo-icon{font-size:28px}
.logo-text{font-size:20px;font-weight:700;color:#fff}
.nav-links{display:flex;align-items:center;gap:36px}
.nav-link{color:#94a3b8;font-size:15px;font-weight:500;transition:all 0.3s}
.nav-link:hover,.nav-link.active{color:#fff}
.mobile-menu-btn{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;position:relative;z-index:1001}
.mobile-menu-btn span{width:24px;height:2px;background:#fff;border-radius:2px;display:block;transition:all 0.3s}
.hide-mobile{display:inline-flex}

.hero{position:relative;min-height:100vh;display:flex;flex-direction:column;background:#0f172a;overflow:hidden;padding-top:72px}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-gradient{position:absolute;inset:0;background:radial-gradient(ellipse 80% 50% at 50% 0%,rgba(37,99,235,0.3),transparent 60%),radial-gradient(ellipse 60% 40% at 80% 60%,rgba(6,182,212,0.15),transparent 50%)}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(37,99,235,0.03) 1px,transparent 1px),linear-gradient(90deg,rgba(37,99,235,0.03) 1px,transparent 1px);background-size:60px 60px}
.hero-particles{position:absolute;inset:0;z-index:1;pointer-events:none}
.hero-content{position:relative;z-index:2;text-align:center;max-width:900px;margin:0 auto;padding:80px 24px 40px;width:100%}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;background:rgba(37,99,235,0.15);border:1px solid rgba(37,99,235,0.3);border-radius:100px;color:#94a3b8;font-size:14px;margin-bottom:24px}
.badge-dot{width:8px;height:8px;background:#10b981;border-radius:50%;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.5}}
.hero-title{font-size:48px;font-weight:800;color:#fff;letter-spacing:-1px;line-height:1.15;margin-bottom:20px}
.gradient-text{background:linear-gradient(135deg,#2563eb,#06b6d4);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-subtitle{font-size:17px;color:#94a3b8;max-width:680px;margin:0 auto 32px;line-height:1.8}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.hero-trust{display:flex;gap:24px;justify-content:center;margin-top:20px;font-size:14px;color:#64748b;flex-wrap:wrap}
.trust-item{display:flex;align-items:center;gap:6px}
.hero-stats{position:relative;z-index:2;background:rgba(15,23,42,0.9);border-top:1px solid rgba(255,255,255,0.06);padding:28px 0;margin-top:auto}
.stats-row{display:flex;align-items:center;justify-content:center;flex-wrap:wrap}
.stat-item{text-align:center;padding:12px 36px}
.stat-num{font-size:30px;font-weight:800;color:#fff;font-family:-apple-system,BlinkMacSystemFont,Inter,Arial,sans-serif}
.stat-label{font-size:13px;color:#64748b;margin-top:4px}
.stat-divider{width:1px;height:40px;background:rgba(255,255,255,0.1)}

.section{padding:72px 0;background:#fff}
.section-header{text-align:center;max-width:600px;margin:0 auto 48px}
.section-tag{display:inline-block;padding:6px 14px;background:rgba(37,99,235,0.08);color:#2563eb;font-size:12px;font-weight:600;border-radius:100px;margin-bottom:14px;text-transform:uppercase;letter-spacing:1px}
.section-title{font-size:30px;font-weight:700;color:#0f172a;letter-spacing:-0.5px;margin-bottom:10px}
.section-desc{font-size:15px;color:#64748b}
.logos-section{padding:40px 0;background:#f8fafc;border-bottom:1px solid #e2e8f0}
.logos-label{text-align:center;font-size:13px;color:#94a3b8;margin-bottom:20px;text-transform:uppercase;letter-spacing:2px}
.logos-grid{display:flex;justify-content:center;flex-wrap:wrap;gap:12px}
.logo-item{padding:8px 16px;background:#fff;border-radius:8px;font-size:13px;color:#64748b;border:1px solid #e2e8f0}
.features-section{background:#f8fafc}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:#fff;border:1px solid #e2e8f0;border-radius:16px;padding:28px;transition:all 0.3s;position:relative;overflow:hidden}
.feature-card:hover{transform:translateY(-4px);box-shadow:0 20px 25px -5px rgba(0,0,0,0.1);border-color:#2563eb}
.feature-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(135deg,#2563eb,#06b6d4);transform:scaleX(0);transition:transform 0.3s}
.feature-card:hover::before{transform:scaleX(1)}
.feature-icon-lg{font-size:36px;margin-bottom:14px}
.feature-card h3{font-size:17px;font-weight:700;color:#0f172a;margin-bottom:8px}
.feature-card p{font-size:13px;color:#64748b;line-height:1.7;margin-bottom:12px}
.feature-tag{display:inline-block;padding:3px 10px;background:#f1f5f9;color:#94a3b8;font-size:11px;border-radius:100px}
.how-section{background:#fff}
.steps-container{display:flex;align-items:center;justify-content:center;gap:16px}
.step-card{background:#fff;border-radius:16px;padding:32px 24px;text-align:center;flex:1;max-width:260px;border:1px solid #e2e8f0;transition:all 0.3s}
.step-card:hover{transform:translateY(-4px);box-shadow:0 10px 15px -3px rgba(0,0,0,0.1)}
.step-num-lg{font-size:42px;font-weight:800;color:#2563eb;opacity:0.2;margin-bottom:10px;font-family:-apple-system,BlinkMacSystemFont,Inter,Arial,sans-serif}
.step-card h3{font-size:16px;font-weight:700;color:#0f172a;margin-bottom:6px}
.step-card p{font-size:13px;color:#94a3b8;line-height:1.5}
.step-arrow{font-size:28px;color:#2563eb;opacity:0.3;flex-shrink:0}
.solutions-preview{background:#f8fafc}
.solutions-scroll{display:flex;gap:16px;overflow-x:auto;padding:8px 0 16px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.solutions-scroll::-webkit-scrollbar{height:3px}
.solutions-scroll::-webkit-scrollbar-track{background:#f1f5f9}
.solutions-scroll::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:2px}
.solution-card{min-width:240px;background:#fff;border:1px solid #e2e8f0;border-radius:14px;padding:24px;flex-shrink:0;scroll-snap-align:start;transition:all 0.3s}
.solution-card:hover{transform:translateY(-3px);box-shadow:0 10px 15px -3px rgba(0,0,0,0.08)}
.solution-icon{font-size:32px;margin-bottom:10px}
.solution-card h4{font-size:15px;font-weight:700;color:#0f172a;margin-bottom:6px}
.solution-card p{font-size:12px;color:#94a3b8;margin-bottom:10px;line-height:1.5}
.solution-case{display:block;font-size:11px;color:#2563eb;font-weight:600}
.compare-section{background:#0f172a}
.compare-section .section-title{color:#fff}
.compare-section .section-tag{background:rgba(37,99,235,0.2);color:#06b6d4}
.compare-table{background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.08);border-radius:16px;overflow:hidden;max-width:900px;margin:0 auto}
.compare-row{display:grid;grid-template-columns:2fr 3fr 3fr;border-bottom:1px solid rgba(255,255,255,0.05)}
.compare-row:last-child{border-bottom:none}
.compare-cell{padding:14px 18px;font-size:13px;border-right:1px solid rgba(255,255,255,0.05)}
.compare-cell:last-child{border-right:none}
.compare-header{background:rgba(255,255,255,0.05)}
.compare-header .compare-cell{color:#94a3b8;font-weight:600;font-size:12px}
.compare-row:not(.compare-header) .compare-cell:nth-child(1){color:#94a3b8;font-weight:500}
.compare-row:not(.compare-header) .compare-cell:nth-child(2){color:#64748b}
.compare-row:not(.compare-header) .compare-cell:nth-child(3){color:#fff}
.compare-highlight{color:#10b981;font-weight:600}
.pricing-preview{background:#fff}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:1000px;margin:0 auto}
.pricing-card{background:#fff;border:2px solid #e2e8f0;border-radius:20px;padding:28px;text-align:center;transition:all 0.3s;position:relative}
.pricing-card:hover{transform:translateY(-4px);box-shadow:0 20px 25px -5px rgba(0,0,0,0.1)}
.pricing-card.featured{border-color:#2563eb;transform:scale(1.03)}
.pricing-card.featured:hover{transform:scale(1.03) translateY(-4px)}
.pricing-badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);padding:4px 14px;background:linear-gradient(135deg,#2563eb,#06b6d4);color:#fff;font-size:11px;font-weight:600;border-radius:100px}
.pricing-tier{font-size:16px;font-weight:700;color:#0f172a;margin-bottom:10px}
.pricing-price{margin-bottom:6px}
.price-num{font-size:34px;font-weight:800;color:#0f172a;font-family:-apple-system,BlinkMacSystemFont,Inter,Arial,sans-serif}
.price-period{font-size:13px;color:#94a3b8}
.pricing-desc{font-size:13px;color:#94a3b8;margin-bottom:16px}
.pricing-features{text-align:left;margin-bottom:20px}
.pricing-features li{font-size:13px;color:#475569;padding:5px 0;border-bottom:1px solid #f1f5f9;list-style:none}
.pricing-features li:last-child{border-bottom:none}
.section-cta{text-align:center;margin-top:32px}
.cta-section{padding:72px 0;background:linear-gradient(135deg,#2563eb,#06b6d4)}
.cta-content{text-align:center;max-width:580px;margin:0 auto}
.cta-content h2{font-size:28px;font-weight:700;color:#fff;margin-bottom:12px}
.cta-content p{font-size:15px;color:rgba(255,255,255,0.85);margin-bottom:28px}
.cta-actions{margin-bottom:20px}
.cta-trust{display:flex;gap:20px;justify-content:center;font-size:13px;color:rgba(255,255,255,0.7);flex-wrap:wrap}
.footer{background:#0f172a;padding:56px 0 28px;border-top:1px solid rgba(255,255,255,0.06)}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .logo-text{font-size:17px;font-weight:700;color:#fff}
.footer-desc{font-size:13px;color:#64748b;line-height:1.7;margin-bottom:18px}
.footer-contact{display:flex;flex-direction:column;gap:7px;font-size:13px;color:#94a3b8}
.footer-links-group h4{font-size:13px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-links-group a{display:block;font-size:13px;color:#64748b;margin-bottom:9px;transition:color 0.3s}
.footer-links-group a:hover{color:#fff}
.footer-bottom{text-align:center;padding-top:28px;border-top:1px solid rgba(255,255,255,0.06);font-size:13px;color:#64748b}
.footer a{color:#64748b}
.footer a:hover{color:#fff}

@media(max-width:1024px){
.features-grid{grid-template-columns:repeat(2,1fr)}
.pricing-grid{grid-template-columns:1fr;max-width:400px}
.pricing-card.featured{transform:none}
.pricing-card.featured:hover{transform:translateY(-4px)}
.footer-top{grid-template-columns:1fr 1fr}
.compare-table{overflow-x:auto;-webkit-overflow-scrolling:touch}
.compare-row{min-width:500px}
}

@media(max-width:768px){
/* Nav hamburger */
.nav-links{display:none;flex-direction:column;position:fixed;top:72px;left:0;right:0;background:#0f172a;padding:24px;gap:16px;border-bottom:1px solid rgba(255,255,255,0.1);z-index:1000;max-height:calc(100vh - 72px);overflow-y:auto}
.nav-links.menu-open{display:flex}
.mobile-menu-btn{display:flex}
.nav-inner>a.btn{display:none}

/* Hero - compact mobile */
.hero{min-height:auto;padding-top:72px}
.hero-bg{position:absolute;inset:0}
.hero-gradient,.hero-grid{position:absolute;inset:0}
.hero-content{padding:60px 16px 32px;width:100%}
.hero-badge{font-size:11px;padding:5px 10px;margin-bottom:14px}
.hero-title{font-size:28px !important;line-height:1.25 !important;margin-bottom:12px !important;word-wrap:break-word}
.hero-title br{display:none}
.hero-subtitle{font-size:13px !important;line-height:1.65 !important;margin-bottom:20px !important;padding:0 4px}
.hero-actions{flex-direction:column;gap:10px;padding:0;width:100%}
.hero-actions .btn{width:100%;justify-content:center;padding:14px 20px;font-size:15px}
.hero-trust{flex-direction:column;gap:6px;font-size:12px;align-items:center}
.hero-stats{padding:20px 0}
.stats-row{justify-content:center}
.stat-item{padding:8px 16px}
.stat-num{font-size:22px}
.stat-divider{display:none}

/* Sections - proper backgrounds */
.section{padding:48px 0;background:#fff}
.features-section,.solutions-preview{background:#f8fafc}
.compare-section{background:#0f172a}
.pricing-preview{background:#f8fafc}
.section-header{margin-bottom:28px;padding:0 16px}
.section-title{font-size:22px !important;margin-bottom:8px !important}
.section-desc{font-size:13px}

/* Logos */
.logos-section{padding:28px 0}

/* Features - single column */
.features-grid{grid-template-columns:1fr;gap:12px}
.feature-card{padding:18px;border-radius:12px}
.feature-icon-lg{font-size:28px;margin-bottom:10px}
.feature-card h3{font-size:15px}
.feature-card p{font-size:12px;margin-bottom:8px}

/* Steps - vertical */
.steps-container{flex-direction:column;align-items:stretch;gap:12px}
.step-card{max-width:100%;border-radius:12px}
.step-arrow{display:none}

/* Comparison */
.compare-table{border-radius:12px}
.compare-row{min-width:400px}
.compare-cell{padding:10px 12px;font-size:12px}

/* Pricing - 3 columns on mobile */
.pricing-grid{grid-template-columns:repeat(3,1fr);max-width:100%;gap:8px}
.pricing-card{padding:12px 6px;border-radius:12px}
.price-num{font-size:16px}
.pricing-features{font-size:11px;padding-left:12px}
.pricing-tier{font-size:11px}
.pricing-desc{font-size:10px}

/* CTA */
.cta-section{padding:48px 0;background:linear-gradient(135deg,#2563eb,#06b6d4)}
.cta-content h2{font-size:22px}
.cta-content p{font-size:14px}

/* Footer */
.footer-top{grid-template-columns:1fr;gap:24px}
.footer-bottom{font-size:12px}
}

@media(max-width:480px){
.hero-content{padding:50px 12px 24px}
.hero-title{font-size:24px !important}
.hero-subtitle{font-size:12px !important}
.section{padding:36px 0}
.section-title{font-size:18px !important}
.stat-item{padding:6px 12px}
.stat-num{font-size:20px}
.pricing-card{padding:16px}
.price-num{font-size:24px}
.cta-section{padding:36px 0}
.cta-content h2{font-size:18px}
}