/* ========================================
   weex唯客安卓版下载 - 主样式表
   配色: 深色(#061218) + WEEX蓝(#1a6df5) + 下载绿(#10b981) + 优惠橙(#f97316) + 白色
   ======================================== */

/* ----- CSS Reset & Variables ----- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
    --bg-primary:#061218;
    --bg-secondary:#0a1a24;
    --bg-card:#0d1f2b;
    --bg-card-hover:#122838;
    --blue:#1a6df5;
    --blue-hover:#1558d0;
    --green:#10b981;
    --green-hover:#059669;
    --orange:#f97316;
    --orange-hover:#ea580c;
    --white:#ffffff;
    --text-primary:#e2e8f0;
    --text-secondary:#94a3b8;
    --text-muted:#64748b;
    --border:#1e3240;
    --shadow:0 4px 20px rgba(0,0,0,0.3);
    --shadow-lg:0 10px 40px rgba(0,0,0,0.5);
    --radius:12px;
    --radius-lg:20px;
    --max-width:1200px;
    --transition:0.3s ease;
}

html{scroll-behavior:smooth;font-size:16px}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.7;overflow-x:hidden}

.container{max-width:var(--max-width);margin:0 auto;padding:0 1.5rem}

/* ----- Typography ----- */
h1,h2,h3,h4{line-height:1.3;font-weight:700;color:var(--white)}
h1{font-size:clamp(2rem,4vw,3rem)}
h2{font-size:clamp(1.5rem,3vw,2rem)}
h3{font-size:clamp(1.1rem,2vw,1.35rem)}
a{color:var(--blue);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--blue-hover)}
p{margin-bottom:1rem;color:var(--text-secondary)}

.text-blue{color:var(--blue)}
.text-green{color:var(--green)}
.text-orange{color:var(--orange)}

/* ----- Buttons ----- */
.btn{display:inline-block;padding:0.7rem 1.6rem;border-radius:8px;font-weight:600;font-size:0.95rem;cursor:pointer;border:none;transition:all var(--transition);text-align:center}
.btn-lg{padding:0.9rem 2.2rem;font-size:1.05rem}
.btn-xl{padding:1.1rem 2.8rem;font-size:1.15rem}
.btn-sm{padding:0.5rem 1.2rem;font-size:0.88rem}
.btn-download{background:linear-gradient(135deg,var(--green),#059669);color:var(--white);box-shadow:0 4px 15px rgba(16,185,129,0.4)}
.btn-download:hover{background:linear-gradient(135deg,#059669,#047857);transform:translateY(-2px);box-shadow:0 6px 20px rgba(16,185,129,0.5);color:var(--white)}
.btn-outline{border:2px solid var(--green);color:var(--green);background:transparent}
.btn-outline:hover{background:var(--green);color:var(--white);transform:translateY(-2px)}
.btn-outline-light{border:2px solid var(--white);color:var(--white);background:transparent}
.btn-outline-light:hover{background:var(--white);color:var(--bg-primary)}
.btn-pulse{animation:pulse 2s infinite}

@keyframes pulse{
    0%{box-shadow:0 0 0 0 rgba(16,185,129,0.5)}
    70%{box-shadow:0 0 0 15px rgba(16,185,129,0)}
    100%{box-shadow:0 0 0 0 rgba(16,185,129,0)}
}

/* ----- Navbar ----- */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(6,18,24,0.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);transition:all var(--transition)}
.nav-container{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:0.5rem;font-size:1.35rem;font-weight:700;color:var(--white)}
.logo-icon{color:var(--green);font-size:1.5rem}
.logo-text{color:var(--white)}
.nav-menu{display:flex;list-style:none;gap:0.25rem}
.nav-menu a{display:block;padding:0.5rem 1rem;color:var(--text-secondary);font-weight:500;font-size:0.92rem;border-radius:6px;transition:all var(--transition)}
.nav-menu a:hover,.nav-menu a.active{color:var(--white);background:rgba(16,185,129,0.12)}
.nav-download-btn{padding:0.45rem 1rem;font-size:0.85rem}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:0.5rem}
.hamburger{display:block;width:24px;height:2px;background:var(--white);position:relative;transition:all var(--transition)}
.hamburger::before,.hamburger::after{content:'';display:block;width:24px;height:2px;background:var(--white);position:absolute;left:0;transition:all var(--transition)}
.hamburger::before{top:-7px}
.hamburger::after{top:7px}

/* ----- Hero ----- */
.hero-section{position:relative;padding:120px 0 80px;overflow:hidden;background:radial-gradient(ellipse at 30% 50%,rgba(16,185,129,0.08) 0%,transparent 60%),radial-gradient(ellipse at 70% 50%,rgba(26,109,245,0.06) 0%,transparent 60%),var(--bg-primary)}
.hero-container{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}
.hero-content{max-width:600px}
.hero-title{font-size:clamp(2rem,4.5vw,3.2rem);margin-bottom:1.5rem;line-height:1.25}
.hero-subtitle{font-size:1.1rem;color:var(--text-secondary);margin-bottom:2rem;line-height:1.8}
.hero-buttons{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:2.5rem}
.hero-stats{display:flex;gap:2.5rem;flex-wrap:wrap}
.hero-stat-item{display:flex;flex-direction:column}
.hero-stat-number{font-size:2.2rem;font-weight:800;color:var(--green)}
.hero-stat-unit{font-size:1.2rem;font-weight:700;color:var(--green);margin-left:2px}
.hero-stat-label{font-size:0.88rem;color:var(--text-muted);margin-top:2px}
.highlight-stat{font-size:1.1rem;font-weight:700;color:var(--orange)}
.hero-stat-sublabel{font-size:0.88rem;color:var(--text-muted);margin-top:2px}
.hero-image img{width:100%;height:auto;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}
.hero-wave{position:absolute;bottom:-1px;left:0;right:0;height:60px;overflow:hidden}
.hero-wave svg{width:100%;height:100%}

/* ----- Section Common ----- */
.section-title{text-align:center;margin-bottom:1rem}
.section-desc{text-align:center;color:var(--text-muted);margin-bottom:3rem;font-size:1.05rem}

/* ----- Features ----- */
.features-section{padding:80px 0;background:var(--bg-secondary)}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.75rem}
.feature-card{background:var(--bg-card);border-radius:var(--radius);padding:2rem;border:1px solid var(--border);transition:all var(--transition)}
.feature-card:hover{background:var(--bg-card-hover);transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--green)}
.feature-icon{margin-bottom:1.25rem}
.feature-icon img{border-radius:8px}
.feature-card h3{font-size:1.2rem;margin-bottom:0.75rem;color:var(--green)}
.feature-card p{font-size:0.93rem;color:var(--text-secondary);line-height:1.7}

/* ----- Why Android Section ----- */
.why-section{padding:80px 0;background:var(--bg-primary)}
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}
.why-image img{width:100%;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}
.why-list{list-style:none;margin:1.5rem 0 2rem}
.why-list li{padding:0.7rem 0;color:var(--text-secondary);border-bottom:1px solid var(--border);font-size:0.95rem;display:flex;align-items:center;gap:0.5rem}
.why-list li:last-child{border-bottom:none}
.why-list li::before{content:'✓';color:var(--green);font-weight:700;font-size:1.1rem;flex-shrink:0}

/* ----- Payment Section ----- */
.payment-section{padding:80px 0;background:var(--bg-secondary)}
.payment-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:1.25rem}
.payment-card{background:var(--bg-card);border-radius:var(--radius);padding:1.5rem;text-align:center;border:1px solid var(--border);transition:all var(--transition)}
.payment-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--orange)}
.payment-card img{margin-bottom:0.75rem;border-radius:6px}
.payment-card h3{font-size:0.95rem;margin-bottom:0.35rem}
.payment-card p{font-size:0.82rem;color:var(--text-muted);margin:0}

/* ----- CTA Section ----- */
.cta-section{padding:80px 0;background:linear-gradient(135deg,rgba(16,185,129,0.08),rgba(26,109,245,0.06)),var(--bg-primary);text-align:center}
.cta-title{font-size:clamp(1.8rem,3.5vw,2.5rem);margin-bottom:1rem}
.cta-desc{font-size:1.1rem;color:var(--text-secondary);margin-bottom:2rem;line-height:1.8}
.cta-buttons{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;margin-bottom:1.5rem}
.cta-note{font-size:0.9rem;color:var(--text-muted)}

/* ----- Page Hero ----- */
.page-hero{padding:120px 0 60px;text-align:center;background:radial-gradient(ellipse at center,rgba(16,185,129,0.06) 0%,transparent 70%),var(--bg-primary)}
.page-hero-title{font-size:clamp(2rem,5vw,3.5rem);margin-bottom:0.75rem}
.page-hero-subtitle{font-size:1.15rem;color:var(--text-muted)}

/* ----- About - Intro ----- */
.intro-section{padding:80px 0;background:var(--bg-secondary)}
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}
.intro-image img{width:100%;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}
.intro-content h2{font-size:1.8rem;margin-bottom:1.25rem}
.intro-content p{line-height:1.85;margin-bottom:1rem}
.intro-content .btn{margin-top:1rem}

/* ----- Timeline ----- */
.timeline-section{padding:80px 0;background:var(--bg-primary)}
.timeline{position:relative;max-width:800px;margin:0 auto;padding-left:2.5rem}
.timeline::before{content:'';position:absolute;left:11px;top:0;bottom:0;width:3px;background:linear-gradient(to bottom,var(--green),var(--blue))}
.timeline-item{position:relative;margin-bottom:2.5rem}
.timeline-marker{position:absolute;left:-2.5rem;top:4px;width:24px;height:24px;border-radius:50%;background:var(--green);border:4px solid var(--bg-primary);z-index:2;box-shadow:0 0 0 4px rgba(16,185,129,0.2)}
.timeline-content{background:var(--bg-card);border-radius:var(--radius);padding:1.5rem;border:1px solid var(--border)}
.timeline-content h3{color:var(--green);margin-bottom:0.5rem}
.timeline-content p{font-size:0.93rem;margin:0}

/* ----- Security ----- */
.security-section{padding:80px 0;background:var(--bg-secondary)}
.security-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.75rem}
.security-card{background:var(--bg-card);border-radius:var(--radius);padding:2rem;text-align:center;border:1px solid var(--border);transition:all var(--transition)}
.security-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--green)}
.security-card img{margin-bottom:1rem;border-radius:8px}
.security-card h3{font-size:1.05rem;margin-bottom:0.6rem}
.security-card p{font-size:0.9rem;color:var(--text-secondary)}

/* ----- Team ----- */
.team-section{padding:80px 0;background:var(--bg-primary)}
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.75rem}
.team-card{background:var(--bg-card);border-radius:var(--radius);padding:1.5rem;text-align:center;border:1px solid var(--border);transition:all var(--transition)}
.team-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.team-card img{width:100%;border-radius:50%;margin-bottom:1rem;aspect-ratio:1;object-fit:cover}
.team-card h3{font-size:1.1rem;margin-bottom:0.25rem}
.team-role{color:var(--green);font-size:0.88rem;font-weight:600;margin-bottom:0.75rem}
.team-card p{font-size:0.88rem;color:var(--text-muted)}

/* ----- Services Detail ----- */
.services-grid-section{padding:80px 0;background:var(--bg-secondary)}
.services-detailed{display:flex;flex-direction:column;gap:2rem}
.service-detail-card{display:grid;grid-template-columns:350px 1fr;gap:2rem;background:var(--bg-card);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);transition:all var(--transition)}
.service-detail-card:hover{border-color:var(--green);box-shadow:var(--shadow-lg)}
.service-detail-card img{width:100%;height:100%;object-fit:cover;min-height:250px}
.service-detail-body{padding:2rem}
.service-detail-body h3{font-size:1.4rem;margin-bottom:0.75rem;color:var(--green)}
.service-detail-body p{margin-bottom:1rem}
.service-detail-body ul{list-style:none;margin-bottom:1.25rem}
.service-detail-body ul li{padding:0.35rem 0;font-size:0.93rem;color:var(--text-secondary)}
.service-detail-body ul li::before{content:'› ';color:var(--green);font-weight:700}

/* ----- Comparison Table ----- */
.comparison-section{padding:80px 0;background:var(--bg-primary)}
.table-wrapper{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--border)}
.comp-table{width:100%;border-collapse:collapse;background:var(--bg-card)}
.comp-table th{background:rgba(16,185,129,0.1);color:var(--green);font-weight:700;padding:1rem 1.25rem;text-align:left;font-size:0.95rem;white-space:nowrap}
.comp-table td{padding:0.9rem 1.25rem;border-bottom:1px solid var(--border);font-size:0.93rem;color:var(--text-secondary)}
.comp-table tbody tr:hover{background:var(--bg-card-hover)}
.comp-table tbody tr:last-child td{border-bottom:none}

/* ----- FAQ ----- */
.faq-search-section{padding:40px 0 0;background:var(--bg-secondary)}
.faq-search-box{max-width:600px;margin:0 auto 1.5rem}
.faq-search-input{width:100%;padding:0.9rem 1.25rem;border-radius:25px;border:1px solid var(--border);background:var(--bg-card);color:var(--white);font-size:1rem;transition:all var(--transition);outline:none}
.faq-search-input:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(16,185,129,0.15)}
.faq-search-input::placeholder{color:var(--text-muted)}
.faq-categories{display:flex;gap:0.5rem;justify-content:center;flex-wrap:wrap}
.faq-cat-btn{padding:0.5rem 1.2rem;border-radius:20px;border:1px solid var(--border);background:transparent;color:var(--text-secondary);cursor:pointer;font-size:0.88rem;transition:all var(--transition)}
.faq-cat-btn:hover,.faq-cat-btn.active{background:var(--green);color:var(--white);border-color:var(--green)}

.faq-content-section{padding:50px 0 80px;background:var(--bg-secondary)}
.faq-group{margin-bottom:2.5rem}
.faq-group-title{font-size:1.5rem;margin-bottom:1.5rem;padding-bottom:0.5rem;border-bottom:2px solid var(--green)}
.faq-item{margin-bottom:0.75rem;background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);transition:all var(--transition)}
.faq-item:hover{border-color:var(--green)}
.faq-item summary{padding:1.1rem 1.5rem;font-weight:600;font-size:1rem;color:var(--white);cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;transition:color var(--transition)}
.faq-item summary:hover{color:var(--green)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';font-size:1.3rem;font-weight:300;color:var(--green);transition:transform var(--transition)}
.faq-item[open] summary::after{content:'−';transform:rotate(180deg)}
.faq-item[open]{border-color:var(--green)}
.faq-answer{padding:0 1.5rem 1.25rem;font-size:0.93rem;color:var(--text-secondary);line-height:1.8}
.faq-answer p{margin-bottom:0.75rem}
.faq-answer .btn{margin-top:0.5rem}

/* ----- Contact ----- */
.contact-content-section{padding:80px 0;background:var(--bg-secondary)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem}
.contact-form-wrapper h2,.contact-info-wrapper h2{font-size:1.6rem;margin-bottom:1.5rem}
.contact-form{display:flex;flex-direction:column;gap:1.15rem}
.form-group{display:flex;flex-direction:column;gap:0.35rem}
.form-group label{font-size:0.9rem;font-weight:600;color:var(--text-primary)}
.form-group .required{color:var(--orange)}
.form-group input,.form-group select,.form-group textarea{padding:0.75rem 1rem;border-radius:8px;border:1px solid var(--border);background:var(--bg-card);color:var(--white);font-size:0.95rem;font-family:inherit;transition:all var(--transition);outline:none;width:100%}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(16,185,129,0.1)}
.form-group select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='%2394a3b8'%3E%3Cpath d='M6 8L0 0h12z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 1rem center;padding-right:2.5rem}
.form-note{font-size:0.82rem;color:var(--text-muted);margin-top:0.5rem}
.contact-info-cards{display:flex;flex-direction:column;gap:1rem;margin-bottom:2rem}
.contact-info-card{display:flex;gap:1rem;align-items:flex-start;background:var(--bg-card);border-radius:var(--radius);padding:1.25rem;border:1px solid var(--border)}
.contact-info-card img{border-radius:8px;flex-shrink:0}
.contact-info-card h3{font-size:1rem;margin-bottom:0.25rem}
.contact-info-card p{font-size:0.9rem;color:var(--text-secondary);margin:0 0 0.25rem}
.biz-coop{display:flex;flex-direction:column;gap:1rem}
.biz-coop-card{background:var(--bg-card);border-radius:var(--radius);padding:1.25rem;border:1px solid var(--border);transition:all var(--transition)}
.biz-coop-card:hover{border-color:var(--orange)}
.biz-coop-card h3{font-size:1rem;margin-bottom:0.35rem}
.biz-coop-card p{font-size:0.88rem;color:var(--text-secondary);margin:0}

/* ----- Footer ----- */
footer{background:var(--bg-primary);border-top:1px solid var(--border);padding:3rem 0 0}
.footer-container{display:grid;grid-template-columns:1fr 2fr;gap:3rem}
.footer-logo{font-size:1.3rem;font-weight:700;color:var(--white);margin-bottom:0.75rem;display:inline-block}
.footer-brand p{font-size:0.9rem;color:var(--text-muted)}
.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.footer-col h4{font-size:0.95rem;margin-bottom:1rem;color:var(--white)}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:0.5rem}
.footer-col ul li a{font-size:0.88rem;color:var(--text-muted);transition:color var(--transition)}
.footer-col ul li a:hover{color:var(--green)}
.footer-bottom{padding:1.5rem 0;margin-top:3rem;border-top:1px solid var(--border);text-align:center}
.footer-bottom p{font-size:0.85rem;color:var(--text-muted);margin:0}

/* ----- Animations ----- */
.fade-in-up{animation:fadeInUp 0.7s ease forwards}
@keyframes fadeInUp{
    from{opacity:0;transform:translateY(30px)}
    to{opacity:1;transform:translateY(0)}
}

.reveal-on-scroll{opacity:0;transform:translateY(30px);transition:all 0.7s ease}
.reveal-on-scroll.visible{opacity:1;transform:translateY(0)}

/* ----- Responsive ----- */
@media (max-width:1024px){
    .features-grid{grid-template-columns:repeat(2,1fr)}
    .security-grid{grid-template-columns:repeat(2,1fr)}
    .team-grid{grid-template-columns:repeat(2,1fr)}
    .payment-grid{grid-template-columns:repeat(3,1fr)}
    .hero-container,.intro-grid,.why-grid,.contact-grid{grid-template-columns:1fr}
    .hero-image{order:-1}
    .hero-image img{max-width:400px;margin:0 auto;display:block}
    .service-detail-card{grid-template-columns:1fr}
    .service-detail-card img{max-height:200px}
    .footer-container{grid-template-columns:1fr}
    .footer-links{grid-template-columns:repeat(2,1fr)}
}

@media (max-width:768px){
    .nav-menu{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;background:rgba(6,18,24,0.98);backdrop-filter:blur(12px);padding:1rem;border-bottom:1px solid var(--border)}
    .nav-menu.open{display:flex}
    .nav-toggle{display:block}
    .nav-download-btn{display:none}
    .features-grid{grid-template-columns:1fr}
    .security-grid{grid-template-columns:1fr}
    .team-grid{grid-template-columns:1fr}
    .payment-grid{grid-template-columns:repeat(2,1fr)}
    .hero-stats{gap:1.5rem}
    .hero-section{padding:100px 0 60px}
}