*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

:root{
    --bg-primary:#0a0e1a;
    --bg-secondary:#111827;
    --bg-card:#1a1f2e;
    --bg-card-hover:#222840;
    --text-primary:#ffffff;
    --text-secondary:#94a3b8;
    --text-muted:#64748b;
    --accent-blue:#00d4ff;
    --accent-purple:#7b2ff7;
    --gradient:linear-gradient(135deg,#00d4ff,#7b2ff7);
    --gradient-hover:linear-gradient(135deg,#00e5ff,#8b3ff7);
    --glow:0 0 20px rgba(0,212,255,0.15);
    --glow-strong:0 0 40px rgba(0,212,255,0.25);
    --border-color:rgba(255,255,255,0.06);
    --border-glow:rgba(0,212,255,0.3);
    --radius:12px;
    --radius-lg:20px;
    --font-sys:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
    --transition:0.3s cubic-bezier(0.4,0,0.2,1);
}

html{scroll-behavior:smooth;font-size:16px}

body{
    font-family:var(--font-sys);
    background:var(--bg-primary);
    color:var(--text-primary);
    line-height:1.6;
    overflow-x:hidden;
    -webkit-font-smoothing:antialiased;
}

.container{
    max-width:1200px;
    margin:0 auto;
    padding:0 24px;
}

.section{
    padding:100px 0;
    position:relative;
}

.section-title{
    font-size:2.5rem;
    font-weight:700;
    text-align:center;
    margin-bottom:12px;
    letter-spacing:-0.02em;
}

.section-subtitle{
    font-size:1.125rem;
    color:var(--text-secondary);
    text-align:center;
    margin-bottom:60px;
}

.gradient-text{
    background:var(--gradient);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
}

.btn{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:14px 32px;
    border-radius:var(--radius);
    font-size:1rem;
    font-weight:600;
    text-decoration:none;
    transition:var(--transition);
    cursor:pointer;
    border:none;
    font-family:var(--font-sys);
}

.btn-primary{
    background:var(--gradient);
    color:#fff;
    box-shadow:var(--glow);
}

.btn-primary:hover{
    background:var(--gradient-hover);
    box-shadow:var(--glow-strong);
    transform:translateY(-2px);
}

.btn-secondary{
    background:transparent;
    color:var(--text-primary);
    border:1px solid var(--border-color);
}

.btn-secondary:hover{
    border-color:var(--border-glow);
    background:rgba(0,212,255,0.05);
}

.btn-outline{
    background:transparent;
    color:var(--text-primary);
    border:1px solid var(--border-color);
    width:100%;
    justify-content:center;
}

.btn-outline:hover{
    border-color:var(--border-glow);
    background:rgba(0,212,255,0.05);
}

.btn-lg{padding:18px 48px;font-size:1.125rem}

.navbar{
    position:fixed;
    top:0;
    left:0;
    right:0;
    z-index:1000;
    padding:16px 0;
    transition:var(--transition);
}

.navbar.scrolled{
    background:rgba(10,14,26,0.85);
    backdrop-filter:blur(20px);
    -webkit-backdrop-filter:blur(20px);
    border-bottom:1px solid var(--border-color);
    padding:10px 0;
}

.nav-container{
    display:flex;
    align-items:center;
    justify-content:space-between;
}

.logo{
    display:flex;
    align-items:center;
    gap:10px;
    text-decoration:none;
    color:var(--text-primary);
}

.logo-text{
    font-size:1.375rem;
    font-weight:700;
    background:var(--gradient);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
}

.nav-links{
    display:flex;
    align-items:center;
    gap:32px;
    list-style:none;
}

.nav-links a{
    color:var(--text-secondary);
    text-decoration:none;
    font-size:0.9375rem;
    font-weight:500;
    transition:var(--transition);
    position:relative;
}

.nav-links a:hover{
    color:var(--text-primary);
}

.nav-links a::after{
    content:"";
    position:absolute;
    bottom:-4px;
    left:0;
    width:0;
    height:2px;
    background:var(--gradient);
    transition:var(--transition);
    border-radius:1px;
}

.nav-links a:hover::after{width:100%}

.nav-btn{
    background:var(--gradient) !important;
    -webkit-background-clip:unset !important;
    -webkit-text-fill-color:#fff !important;
    background-clip:unset !important;
    padding:8px 20px !important;
    border-radius:8px !important;
    color:#fff !important;
}

.nav-btn::after{display:none !important}

.nav-btn:hover{
    box-shadow:var(--glow);
    transform:translateY(-1px);
}

.hamburger{
    display:none;
    flex-direction:column;
    gap:5px;
    background:none;
    border:none;
    cursor:pointer;
    padding:4px;
}

.hamburger span{
    display:block;
    width:24px;
    height:2px;
    background:var(--text-primary);
    border-radius:2px;
    transition:var(--transition);
}

.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

.hero{
    min-height:100vh;
    display:flex;
    align-items:center;
    position:relative;
    overflow:hidden;
    padding-top:80px;
}

.hero-bg{
    position:absolute;
    inset:0;
    pointer-events:none;
}

.hero-glow{
    position:absolute;
    top:50%;
    left:50%;
    transform:translate(-50%,-50%);
    width:800px;
    height:800px;
    background:radial-gradient(circle,rgba(0,212,255,0.08) 0%,rgba(123,47,247,0.04) 40%,transparent 70%);
    border-radius:50%;
}

.particle{
    position:absolute;
    left:var(--x);
    top:var(--y);
    width:var(--s);
    height:var(--s);
    background:var(--accent-blue);
    border-radius:50%;
    opacity:0;
    animation:particleFloat var(--d) ease-in-out infinite;
}

@keyframes particleFloat{
    0%,100%{opacity:0;transform:translateY(0)}
    50%{opacity:0.6;transform:translateY(-30px)}
}

.hero-content{
    position:relative;
    z-index:1;
    text-align:center;
}

.hero-title{
    font-size:4rem;
    font-weight:800;
    letter-spacing:-0.03em;
    line-height:1.1;
    margin-bottom:24px;
}

.hero-subtitle{
    font-size:1.25rem;
    color:var(--text-secondary);
    max-width:600px;
    margin:0 auto 40px;
    line-height:1.8;
}

.hero-actions{
    display:flex;
    gap:16px;
    justify-content:center;
    margin-bottom:60px;
}

.hero-stats{
    display:flex;
    gap:48px;
    justify-content:center;
}

.stat{
    display:flex;
    flex-direction:column;
    align-items:center;
}

.stat-num{
    font-size:2rem;
    font-weight:800;
    background:var(--gradient);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
}

.stat-label{
    font-size:0.875rem;
    color:var(--text-muted);
    margin-top:4px;
}

.features-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:24px;
}

.feature-card{
    background:var(--bg-card);
    border:1px solid var(--border-color);
    border-radius:var(--radius-lg);
    padding:36px 28px;
    transition:var(--transition);
    position:relative;
    overflow:hidden;
}

.feature-card::before{
    content:"";
    position:absolute;
    top:0;
    left:0;
    right:0;
    height:2px;
    background:var(--gradient);
    opacity:0;
    transition:var(--transition);
}

.feature-card:hover{
    background:var(--bg-card-hover);
    border-color:var(--border-glow);
    box-shadow:var(--glow);
    transform:translateY(-4px);
}

.feature-card:hover::before{opacity:1}

.feature-icon{
    width:64px;
    height:64px;
    display:flex;
    align-items:center;
    justify-content:center;
    background:linear-gradient(135deg,rgba(0,212,255,0.1),rgba(123,47,247,0.1));
    border-radius:16px;
    margin-bottom:20px;
    color:var(--accent-blue);
}

.feature-card h3{
    font-size:1.25rem;
    font-weight:600;
    margin-bottom:12px;
}

.feature-card p{
    color:var(--text-secondary);
    font-size:0.9375rem;
    line-height:1.7;
}

.steps{
    display:flex;
    align-items:flex-start;
    justify-content:center;
    gap:0;
    max-width:900px;
    margin:0 auto;
}

.step{
    flex:1;
    text-align:center;
    padding:0 20px;
    position:relative;
}

.step-number{
    font-size:3rem;
    font-weight:800;
    background:var(--gradient);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
    opacity:0.3;
    margin-bottom:16px;
}

.step-icon{
    display:flex;
    justify-content:center;
    margin-bottom:20px;
}

.step h3{
    font-size:1.25rem;
    font-weight:600;
    margin-bottom:12px;
}

.step p{
    color:var(--text-secondary);
    font-size:0.9375rem;
    line-height:1.7;
}

.step-connector{
    display:flex;
    flex-direction:column;
    align-items:center;
    padding-top:60px;
    width:60px;
    flex-shrink:0;
}

.connector-line{
    width:60px;
    height:2px;
    background:linear-gradient(90deg,var(--accent-blue),var(--accent-purple));
    opacity:0.3;
}

.eco-diagram{
    display:flex;
    align-items:center;
    justify-content:center;
    gap:0;
    max-width:900px;
    margin:0 auto;
}

.eco-card{
    flex:1;
    background:var(--bg-card);
    border:1px solid var(--border-color);
    border-radius:var(--radius-lg);
    padding:36px 28px;
    transition:var(--transition);
    position:relative;
}

.eco-card:hover{
    border-color:var(--border-glow);
    box-shadow:var(--glow);
}

.eco-card-icon{
    width:56px;
    height:56px;
    display:flex;
    align-items:center;
    justify-content:center;
    background:linear-gradient(135deg,rgba(0,212,255,0.1),rgba(123,47,247,0.1));
    border-radius:14px;
    margin-bottom:16px;
    color:var(--accent-blue);
}

.eco-card h3{
    font-size:1.375rem;
    font-weight:600;
    margin-bottom:8px;
}

.eco-tag{
    color:var(--accent-blue);
    font-size:0.875rem;
    margin-bottom:20px;
}

.eco-features{
    list-style:none;
    display:flex;
    flex-direction:column;
    gap:10px;
}

.eco-features li{
    color:var(--text-secondary);
    font-size:0.9375rem;
    padding-left:20px;
    position:relative;
}

.eco-features li::before{
    content:"";
    position:absolute;
    left:0;
    top:8px;
    width:6px;
    height:6px;
    border-radius:50%;
    background:var(--gradient);
}

.eco-bridge{
    display:flex;
    flex-direction:column;
    align-items:center;
    gap:8px;
    padding:0 20px;
    flex-shrink:0;
}

.bridge-line{
    width:40px;
    height:2px;
    background:linear-gradient(90deg,var(--accent-blue),var(--accent-purple));
    opacity:0.4;
}

.bridge-label{
    font-size:0.75rem;
    color:var(--text-muted);
    white-space:nowrap;
    font-family:monospace;
}

.pricing-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:20px;
    margin-bottom:48px;
}

.pricing-card{
    background:var(--bg-card);
    border:1px solid var(--border-color);
    border-radius:var(--radius-lg);
    padding:32px 24px;
    display:flex;
    flex-direction:column;
    transition:var(--transition);
    position:relative;
    overflow:hidden;
}

.pricing-card:hover{
    border-color:var(--border-glow);
    box-shadow:var(--glow);
    transform:translateY(-4px);
}

.pricing-recommended{
    border-color:var(--border-glow);
    box-shadow:var(--glow-strong);
    transform:scale(1.04);
    background:linear-gradient(180deg,rgba(0,212,255,0.05) 0%,var(--bg-card) 100%);
}

.pricing-recommended:hover{
    transform:scale(1.04) translateY(-4px);
}

.pricing-header{
    margin-bottom:28px;
    position:relative;
}

.pricing-header h3{
    font-size:1.125rem;
    font-weight:600;
    margin-bottom:16px;
}

.pricing-badge{
    position:absolute;
    top:-8px;
    right:-8px;
    background:var(--gradient);
    color:#fff;
    font-size:0.75rem;
    font-weight:600;
    padding:4px 12px;
    border-radius:20px;
}

.badge-hot{
    background:linear-gradient(135deg,#ff6b35,#ff2d87);
}

.badge-best{
    background:linear-gradient(135deg,#00d4ff,#00ff88);
}

.pricing-price{
    display:flex;
    align-items:baseline;
    gap:8px;
    flex-wrap:wrap;
}

.price-original{
    font-size:0.875rem;
    color:var(--text-muted);
    text-decoration:line-through;
}

.price-amount{
    font-size:2rem;
    font-weight:800;
    background:var(--gradient);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
}

.price-period{
    font-size:0.875rem;
    color:var(--text-muted);
}

.pricing-save{
    display:inline-block;
    font-size:0.75rem;
    color:#00ff88;
    background:rgba(0,255,136,0.1);
    padding:2px 8px;
    border-radius:4px;
    margin-top:4px;
}

.pricing-features{
    list-style:none;
    display:flex;
    flex-direction:column;
    gap:12px;
    margin-bottom:28px;
    flex:1;
}

.pricing-features li{
    font-size:0.9375rem;
    padding-left:24px;
    position:relative;
    color:var(--text-secondary);
}

.pricing-features li.included::before{
    content:"";
    position:absolute;
    left:0;
    top:6px;
    width:14px;
    height:14px;
    background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2300d4ff' stroke-width='3'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") no-repeat center/contain;
}

.pricing-features li.excluded{
    color:var(--text-muted);
}

.pricing-features li.excluded::before{
    content:"";
    position:absolute;
    left:0;
    top:6px;
    width:14px;
    height:14px;
    background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='3'%3E%3Cline x1='18' y1='6' x2='6' y2='18'/%3E%3Cline x1='6' y1='6' x2='18' y2='18'/%3E%3C/svg%3E") no-repeat center/contain;
}

.pricing-trial{
    display:flex;
    align-items:center;
    gap:20px;
    background:linear-gradient(135deg,rgba(0,212,255,0.08),rgba(123,47,247,0.08));
    border:1px solid var(--border-glow);
    border-radius:var(--radius-lg);
    padding:28px 36px;
    max-width:700px;
    margin:0 auto;
}

.trial-badge{
    color:var(--accent-blue);
    flex-shrink:0;
}

.trial-text h4{
    font-size:1.125rem;
    font-weight:600;
    margin-bottom:4px;
}

.trial-text p{
    color:var(--text-secondary);
    font-size:0.9375rem;
}

.download-cards{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:24px;
    max-width:900px;
    margin:0 auto;
}

.download-card{
    background:var(--bg-card);
    border:1px solid var(--border-color);
    border-radius:var(--radius-lg);
    padding:36px 28px;
    display:flex;
    flex-direction:column;
    transition:var(--transition);
}

.download-card:hover{
    border-color:var(--border-glow);
    box-shadow:var(--glow);
    transform:translateY(-4px);
}

.download-platform{
    display:flex;
    align-items:center;
    gap:20px;
    margin-bottom:20px;
    color:var(--accent-blue);
}

.download-platform h3{
    font-size:1.375rem;
    font-weight:600;
    color:var(--text-primary);
}

.download-platform p{
    color:var(--text-secondary);
    font-size:0.9375rem;
}

.download-requirements{
    list-style:none;
    display:flex;
    flex-direction:column;
    gap:8px;
}

.download-requirements li{
    color:var(--text-muted);
    font-size:0.875rem;
    padding-left:20px;
    position:relative;
}

.download-requirements li::before{
    content:"";
    position:absolute;
    left:0;
    top:7px;
    width:6px;
    height:6px;
    border-radius:50%;
    background:var(--gradient);
}

.download-actions{
    text-align:center;
    flex-shrink:0;
}

.download-hint{
    margin-top:12px;
    font-size:0.8125rem;
    color:var(--text-muted);
}

.footer{
    border-top:1px solid var(--border-color);
    padding:40px 0 24px;
}

.footer-bottom{
    text-align:center;
    display:flex;
    flex-direction:column;
    align-items:center;
    gap:8px;
}

.footer-bottom p{
    color:var(--text-muted);
    font-size:0.8125rem;
}

[data-aos]{opacity:0;transform:translateY(30px);transition:opacity 0.6s ease,transform 0.6s ease}

[data-aos].aos-animate{opacity:1;transform:translateY(0)}

@media(max-width:1024px){
    .pricing-grid{grid-template-columns:repeat(2,1fr)}
    .features-grid{grid-template-columns:repeat(2,1fr)}
    .hero-title{font-size:3rem}
}

@media(max-width:768px){
    .hamburger{display:flex}

    .nav-links{
        position:fixed;
        top:0;
        right:-100%;
        width:280px;
        height:100vh;
        background:var(--bg-secondary);
        flex-direction:column;
        padding:80px 32px 32px;
        gap:24px;
        transition:var(--transition);
        border-left:1px solid var(--border-color);
    }

    .nav-links.open{right:0}

    .hero-title{font-size:2.25rem}

    .hero-subtitle{font-size:1rem}

    .hero-actions{flex-direction:column;align-items:center}

    .hero-stats{flex-direction:column;gap:24px}

    .section{padding:60px 0}

    .section-title{font-size:1.75rem}

    .features-grid{grid-template-columns:1fr}

    .steps{flex-direction:column;align-items:center}

    .step-connector{
        flex-direction:row;
        padding:0;
        height:40px;
        width:2px;
    }

    .connector-line{
        width:2px;
        height:40px;
    }

    .eco-diagram{flex-direction:column;gap:24px}

    .eco-bridge{flex-direction:row}

    .bridge-line{width:40px;height:2px}

    .pricing-grid{grid-template-columns:1fr}

    .pricing-recommended{transform:none}

    .pricing-recommended:hover{transform:translateY(-4px)}

    .pricing-trial{flex-direction:column;text-align:center;padding:24px}

    .download-cards{grid-template-columns:1fr}

    .download-card{padding:24px 20px}
}

@media(max-width:480px){
    .hero-title{font-size:1.75rem}

    .container{padding:0 16px}

    .section{padding:48px 0}

    .btn{padding:12px 24px;font-size:0.9375rem}

    .btn-lg{padding:14px 32px}

    .pricing-card{padding:24px 20px}
}