/* 0103 - WPK正版官网登录入口 Multi-page */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;color:#111827;background:#fff;-webkit-font-smoothing:antialiased}
.gradient-hero{background:linear-gradient(160deg,#EFF6FF 0%,#F0FDF4 40%,#EEF2FF 100%)}
.gradient-stats{background:linear-gradient(135deg,#059669 0%,#10B981 40%,#3B82F6 100%)}
.gradient-cta{background:linear-gradient(135deg,#065F46 0%,#059669 40%,#2563EB 100%)}
.text-gradient{background:linear-gradient(135deg,#059669,#2563EB);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.container{max-width:1280px;margin:0 auto;padding:0 24px}
.navbar{position:fixed;top:0;left:0;right:0;z-index:100;transition:all 0.3s}
.navbar.scrolled{background:rgba(255,255,255,0.98);backdrop-filter:blur(20px);box-shadow:0 1px 3px rgba(0,0,0,0.06)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.nav-logo{display:flex;align-items:center;gap:8px;text-decoration:none;font-size:20px;font-weight:700;color:#111827}
.nav-logo span{color:#059669}
.nav-links{display:flex;gap:32px;list-style:none}
.nav-links a{font-size:14px;font-weight:500;color:#4B5563;text-decoration:none;transition:color 0.2s}
.nav-links a:hover,.nav-links a.active{color:#059669}
.btn-primary{background:linear-gradient(135deg,#059669,#10B981);color:#fff;padding:14px 32px;border-radius:14px;font-weight:600;text-decoration:none;display:inline-flex;align-items:center;gap:8px;transition:all 0.3s;box-shadow:0 10px 30px -8px rgba(5,150,105,0.4)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 20px 40px -10px rgba(5,150,105,0.5)}
.btn-secondary{background:#fff;color:#374151;padding:14px 32px;border-radius:14px;font-weight:600;text-decoration:none;display:inline-flex;align-items:center;gap:8px;border:2px solid #E5E7EB;transition:all 0.3s}
.btn-secondary:hover{border-color:#059669;color:#059669;transform:translateY(-3px)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.section{padding:100px 0}
.section-tag{font-size:13px;font-weight:600;color:#059669;text-transform:uppercase;letter-spacing:2px}
.section-title{font-size:clamp(2rem,4vw,2.75rem);font-weight:800;color:#111827;margin:12px 0 16px}
.section-desc{font-size:18px;color:#6B7280;max-width:600px;margin:0 auto}
.section-header{text-align:center;margin-bottom:64px}
.feature-card{background:#fff;border-radius:20px;padding:36px 32px;border:1px solid #F3F4F6;box-shadow:0 4px 20px rgba(0,0,0,0.04);transition:all 0.35s}
.feature-card:hover{transform:translateY(-10px);box-shadow:0 30px 60px -15px rgba(5,150,105,0.2);border-color:#A7F3D0}
.testimonial-card{background:#fff;border-radius:20px;padding:32px;border:1px solid #F3F4F6;box-shadow:0 4px 20px rgba(0,0,0,0.04)}
.faq-item{background:#F9FAFB;border-radius:16px;overflow:hidden;border:1px solid #F3F4F6;margin-bottom:12px}
.faq-btn{width:100%;text-align:left;padding:20px 24px;font-weight:600;font-size:16px;color:#111827;background:none;border:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between}
.faq-btn:hover{background:#F3F4F6}
.faq-btn i{color:#9CA3AF;transition:transform 0.3s}
.faq-btn.active i{transform:rotate(180deg);color:#059669}
.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.4s,padding 0.4s}
.faq-answer.open{max-height:400px;padding:0 24px 20px}
.faq-answer p{color:#6B7280;line-height:1.7}
.mobile-menu{max-height:0;overflow:hidden;transition:max-height 0.4s}
.mobile-menu.active{max-height:400px}
.about-hero{background:linear-gradient(160deg,#ECFDF5 0%,#EEF2FF 100%);padding:140px 0 80px;text-align:center}
.contact-section{padding:120px 0 80px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-weight:600;margin-bottom:6px;color:#374151}
.form-group input,.form-group textarea{width:100%;padding:14px 18px;border:2px solid #E5E7EB;border-radius:14px;font-size:16px;transition:border-color 0.3s;font-family:inherit}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:#059669;box-shadow:0 0 0 4px rgba(5,150,105,0.1)}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-15px)}}
.animate-float{animation:float 5s ease-in-out infinite}
@media(max-width:1024px){.grid-2{grid-template-columns:1fr}.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.nav-links{display:none}.grid-3{grid-template-columns:1fr}.section{padding:60px 0}.mobile-menu-btn{display:block!important}}