/* Reset */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;color:#1E293B;line-height:1.6;background:#fff}
a{text-decoration:none;color:inherit}
img{max-width:100%;height:auto}
ul{list-style:none}

/* Container */
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* Header */
.header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(15,23,42,.95);backdrop-filter:blur(10px);padding:15px 0}
.header .container{display:flex;align-items:center;justify-content:space-between}
.logo{font-size:24px;font-weight:bold;color:#3B82F6;letter-spacing:1px}
.logo span{color:#fff}
.nav-toggle{display:none;flex-direction:column;cursor:pointer;gap:5px}
.nav-toggle span{width:25px;height:3px;background:#fff;border-radius:2px}
.nav-menu{display:flex;align-items:center;gap:30px}
.nav-menu a{color:#CBD5E1;font-size:15px;transition:color .3s}
.nav-menu a:hover{color:#3B82F6}
.nav-cta{background:#3B82F6;color:#fff!important;padding:8px 20px;border-radius:6px;font-weight:600;transition:background .3s}
.nav-cta:hover{background:#2563EB}

/* Hero */
.hero{min-height:100vh;background:linear-gradient(135deg,#0F172A 0%,#1E3A5F 50%,#0F172A 100%);display:flex;align-items:center;padding:100px 0 60px;position:relative;overflow:hidden}
.hero::after{content:'';position:absolute;top:50%;right:-10%;width:500px;height:500px;background:radial-gradient(circle,rgba(59,130,246,.15) 0%,transparent 70%);border-radius:50%;transform:translateY(-50%)}
.hero .container{display:flex;align-items:center;justify-content:space-between;position:relative;z-index:1}
.hero-content{max-width:600px}
.hero-content h1{font-size:52px;font-weight:bold;color:#fff;margin-bottom:20px;line-height:1.2}
.hero-content h1 em{font-style:normal;color:#3B82F6}
.hero-content p{font-size:18px;color:#94A3B8;margin-bottom:35px;line-height:1.8}
.btn-primary{display:inline-block;background:#3B82F6;color:#fff;padding:14px 36px;border-radius:8px;font-size:17px;font-weight:600;transition:all .3s}
.btn-primary:hover{background:#2563EB;transform:translateY(-2px);box-shadow:0 8px 25px rgba(59,130,246,.35)}
.btn-secondary{display:inline-block;border:2px solid #3B82F6;color:#3B82F6;padding:12px 30px;border-radius:8px;font-size:16px;font-weight:600;margin-left:15px;transition:all .3s}
.btn-secondary:hover{background:#3B82F6;color:#fff}
.hero-visual{width:400px;height:400px;display:flex;align-items:center;justify-content:center}
.hero-visual .shield{width:200px;height:240px;background:linear-gradient(135deg,#3B82F6,#2563EB);border-radius:50% 50% 50% 50%/60% 60% 40% 40%;display:flex;align-items:center;justify-content:center;box-shadow:0 20px 60px rgba(59,130,246,.3)}
.hero-visual .shield svg{width:80px;height:80px;fill:#fff}

/* Trust Bar */
.trust-bar{background:#F8FAFC;padding:50px 0;border-bottom:1px solid #E2E8F0}
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;text-align:center}
.trust-item .number{font-size:42px;font-weight:bold;color:#2563EB}
.trust-item .number span{font-size:20px;color:#64748B}
.trust-item .label{font-size:16px;color:#64748B;margin-top:5px}

/* Section Common */
.section{padding:80px 0}
.section-title{text-align:center;margin-bottom:50px}
.section-title h2{font-size:36px;font-weight:bold;color:#0F172A;margin-bottom:12px}
.section-title p{font-size:17px;color:#64748B;max-width:600px;margin:0 auto}
.section-alt{background:#F8FAFC}

/* Features Grid */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.feature-card{background:#fff;border-radius:12px;padding:35px 25px;text-align:center;border:1px solid #E2E8F0;transition:all .3s}
.feature-card:hover{transform:translateY(-5px);box-shadow:0 15px 40px rgba(0,0,0,.08)}
.feature-icon{width:64px;height:64px;background:linear-gradient(135deg,#EFF6FF,#DBEAFE);border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 20px}
.feature-icon svg{width:32px;height:32px;fill:#2563EB}
.feature-card h3{font-size:20px;font-weight:600;margin-bottom:10px;color:#0F172A}
.feature-card p{font-size:15px;color:#64748B;line-height:1.7}

/* Steps */
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;text-align:center}
.step-item{position:relative}
.step-number{width:60px;height:60px;background:linear-gradient(135deg,#3B82F6,#2563EB);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:bold;margin:0 auto 20px}
.step-item h3{font-size:20px;font-weight:600;margin-bottom:10px}
.step-item p{font-size:15px;color:#64748B}
.step-arrow{position:absolute;right:-30px;top:30px;font-size:24px;color:#CBD5E1}

/* Pricing */
.pricing-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px;max-width:900px;margin:0 auto}
.pricing-card{background:#fff;border-radius:16px;padding:40px 30px;border:2px solid #E2E8F0;text-align:center;transition:all .3s;position:relative}
.pricing-card.recommended{border-color:#3B82F6;box-shadow:0 10px 40px rgba(59,130,246,.15)}
.pricing-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:#F59E0B;color:#fff;padding:4px 20px;border-radius:20px;font-size:13px;font-weight:600}
.pricing-card h3{font-size:24px;font-weight:bold;margin-bottom:5px}
.pricing-card .subtitle{color:#64748B;font-size:14px;margin-bottom:20px}
.pricing-table{width:100%;border-collapse:collapse;margin:20px 0}
.pricing-table th,.pricing-table td{padding:12px 10px;text-align:center;border-bottom:1px solid #F1F5F9;font-size:14px}
.pricing-table th{background:#F8FAFC;color:#64748B;font-weight:500}
.pricing-table td{color:#1E293B}
.pricing-table .price{color:#2563EB;font-weight:bold;font-size:18px}
.pricing-card .btn-primary{width:100%;text-align:center;margin-top:15px}

/* Reviews */
.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}
.review-card{background:#fff;border-radius:12px;padding:25px;border:1px solid #E2E8F0}
.review-stars{color:#F59E0B;font-size:18px;margin-bottom:10px}
.review-text{font-size:15px;color:#475569;margin-bottom:15px;line-height:1.7;font-style:italic}
.review-author{font-size:14px;color:#94A3B8}

/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:10px;margin-bottom:15px;border:1px solid #E2E8F0;overflow:hidden}
.faq-item details{padding:0}
.faq-item summary{padding:20px 25px;font-size:17px;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;color:#0F172A;transition:background .3s}
.faq-item summary:hover{background:#F8FAFC}
.faq-item summary::after{content:'+';font-size:22px;color:#3B82F6;font-weight:bold;transition:transform .3s}
.faq-item details[open] summary::after{content:'-'}
.faq-answer{padding:0 25px 20px;color:#475569;font-size:15px;line-height:1.8}
.faq-answer ol{padding-left:20px;list-style:decimal}
.faq-answer ol li{margin-bottom:8px}

/* CTA Download */
.cta-section{background:linear-gradient(135deg,#0F172A,#1E3A5F);padding:80px 0;text-align:center}
.cta-section h2{font-size:36px;color:#fff;font-weight:bold;margin-bottom:15px}
.cta-section p{font-size:18px;color:#94A3B8;margin-bottom:35px}
.cta-buttons{display:flex;justify-content:center;gap:20px;flex-wrap:wrap}
.cta-btn{display:inline-flex;align-items:center;gap:10px;background:#3B82F6;color:#fff;padding:16px 36px;border-radius:10px;font-size:17px;font-weight:600;transition:all .3s}
.cta-btn:hover{background:#2563EB;transform:translateY(-2px);box-shadow:0 8px 25px rgba(59,130,246,.35)}
.cta-btn svg{width:24px;height:24px;fill:#fff}

/* Footer */
.footer{background:#0F172A;padding:50px 0 30px;color:#94A3B8}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand .logo{margin-bottom:15px;display:block}
.footer-brand p{font-size:14px;line-height:1.7;color:#64748B}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:15px}
.footer-col a{display:block;color:#64748B;font-size:14px;margin-bottom:8px;transition:color .3s}
.footer-col a:hover{color:#3B82F6}
.footer-bottom{border-top:1px solid #1E293B;padding-top:25px;text-align:center;font-size:13px;color:#475569}
.footer-warning{background:rgba(245,158,11,.1);border:1px solid rgba(245,158,11,.3);border-radius:8px;padding:12px 20px;margin-top:15px;text-align:center;font-size:14px;color:#F59E0B}

/* Sub-page Banner */
.page-banner{background:linear-gradient(135deg,#0F172A,#1E3A5F);padding:140px 0 60px;text-align:center}
.page-banner h1{font-size:40px;color:#fff;font-weight:bold;margin-bottom:15px}
.page-banner p{font-size:18px;color:#94A3B8;max-width:600px;margin:0 auto}
.breadcrumb{text-align:center;padding:15px 0;font-size:14px;color:#64748B;background:#F8FAFC;border-bottom:1px solid #E2E8F0}
.breadcrumb a{color:#3B82F6}
.breadcrumb span{margin:0 8px}

/* Content Section */
.content-section{padding:60px 0}
.content-block{margin-bottom:50px}
.content-block h2{font-size:28px;font-weight:bold;color:#0F172A;margin-bottom:15px;padding-bottom:10px;border-bottom:2px solid #3B82F6;display:inline-block}
.content-block h3{font-size:22px;font-weight:600;color:#0F172A;margin:25px 0 10px}
.content-block p{font-size:16px;color:#475569;line-height:1.8;margin-bottom:15px}
.content-block ul{padding-left:0;margin-bottom:15px}
.content-block ul li{font-size:16px;color:#475569;line-height:1.8;margin-bottom:8px;padding-left:20px;position:relative}
.content-block ul li::before{content:'';position:absolute;left:0;top:10px;width:8px;height:8px;background:#3B82F6;border-radius:50%}
.content-block ol{padding-left:20px;margin-bottom:15px;list-style:decimal}
.content-block ol li{font-size:16px;color:#475569;line-height:1.8;margin-bottom:8px}
.highlight-box{background:#EFF6FF;border-left:4px solid #3B82F6;padding:20px 25px;border-radius:0 8px 8px 0;margin:20px 0}
.highlight-box p{color:#1E40AF;margin:0}
.info-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:25px;margin:25px 0}
.info-card{background:#F8FAFC;border-radius:10px;padding:25px;border:1px solid #E2E8F0}
.info-card h4{font-size:18px;font-weight:600;color:#0F172A;margin-bottom:8px}
.info-card p{font-size:15px;color:#64748B;margin:0}

/* SEO Text Section */
.seo-section{padding:50px 0;background:#F8FAFC;border-top:1px solid #E2E8F0}
.seo-section h2{font-size:24px;font-weight:bold;color:#0F172A;margin-bottom:15px}
.seo-section p{font-size:15px;color:#64748B;line-height:1.8;margin-bottom:12px}

/* Responsive */
@media(max-width:992px){
.hero .container{flex-direction:column;text-align:center}
.hero-content h1{font-size:38px}
.hero-visual{width:250px;height:250px;margin-top:40px}
.hero-visual .shield{width:140px;height:170px}
.hero-visual .shield svg{width:56px;height:56px}
.features-grid{grid-template-columns:repeat(2,1fr)}
.trust-grid{grid-template-columns:repeat(3,1fr);gap:15px}
.pricing-grid{grid-template-columns:1fr}
.reviews-grid{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr 1fr}
.info-grid{grid-template-columns:1fr}
.steps-grid{grid-template-columns:1fr;gap:30px}
.step-arrow{display:none}
}
@media(max-width:768px){
.nav-toggle{display:flex}
.nav-menu{display:none;position:absolute;top:100%;left:0;right:0;background:#0F172A;flex-direction:column;padding:20px;gap:15px;border-top:1px solid #1E293B}
.nav-menu.active{display:flex}
.hero{min-height:auto;padding:120px 0 60px}
.hero-content h1{font-size:32px}
.hero-content p{font-size:16px}
.btn-secondary{margin-left:0;margin-top:10px;display:block;text-align:center}
.features-grid{grid-template-columns:1fr}
.trust-grid{grid-template-columns:1fr;gap:20px}
.trust-item .number{font-size:32px}
.section-title h2{font-size:28px}
.footer-grid{grid-template-columns:1fr}
.page-banner{padding:120px 0 40px}
.page-banner h1{font-size:28px}
.cta-section h2{font-size:28px}
}