*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
    --primary:#1a3a6b;
    --primary-light:#2563eb;
    --accent:#f59e0b;
    --accent-light:#fbbf24;
    --dark:#0f172a;
    --text:#1e293b;
    --text-muted:#64748b;
    --bg:#f8fafc;
    --white:#ffffff;
    --border:#e2e8f0;
    --shadow:0 4px 24px rgba(0,0,0,0.08);
    --shadow-lg:0 12px 48px rgba(0,0,0,0.12);
    --radius:16px;
    --radius-sm:10px;
}
html{scroll-behavior:smooth}
body{font-family:'PingFang SC','Microsoft YaHei',sans-serif;color:var(--text);background:var(--bg);line-height:1.6;overflow-x:hidden}
h1,h2,h3,h4{font-weight:700;line-height:1.2}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-sm{padding:48px 0}

.nav{
    background:rgba(255,255,255,0.95);
    backdrop-filter:blur(20px);
    border-bottom:1px solid var(--border);
    position:sticky;top:0;z-index:100;
    box-shadow:0 2px 16px rgba(0,0,0,0.04);
}


.nav-inner{
    display:flex;align-items:center;justify-content:space-between;
    height:72px;
}
.nav-logo{
    display:flex;align-items:center;gap:12px;
    font-size:22px;font-weight:800;color:var(--primary);
}
.nav-logo .logo-icon{
    width:60px;height:40px;
    /*background:linear-gradient(135deg,var(--primary),var(--primary-light));*/
    /*border-radius:12px;display:flex;align-items:center;justify-content:center;*/
    /*color:white;font-size:20px;*/
}
.nav-links{display:flex;align-items:center;gap:8px;list-style:none}
.nav-links a{
    padding:8px 18px;border-radius:8px;font-size:15px;font-weight:500;
    color:var(--text-muted);transition:all 0.2s;
}
.nav-links a:hover,.nav-links a.active{
    background:var(--primary);color:white;
}
.nav-cta{
    background:linear-gradient(135deg,var(--accent),var(--accent-light));
    color:var(--dark) !important;font-weight:700 !important;
    padding:10px 24px !important;border-radius:50px !important;
    box-shadow:0 4px 16px rgba(245,158,11,0.3);
}
.nav-cta:hover{transfoRM:translateY(-1px);box-shadow:0 6px 20px rgba(245,158,11,0.4)}
.mobile-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px}
.mobile-toggle span{display:block;width:24px;height:2px;background:var(--primary);margin:6px 0;border-radius:2px}



/* === Footer === */
.footer{
    background:var(--dark);color:rgba(255,255,255,0.8);
    padding:64px 0 0;
}
.footer-grid{
    display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;
    margin-bottom:48px;
}
.footer-brand .nav-logo{color:white;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.7;opacity:0.7;margin-bottom:20px}
.footer-social{display:flex;gap:12px}
.footer-social a{
    width:36px;height:36px;border-radius:50%;
    background:rgba(255,255,255,0.1);display:flex;
    align-items:center;justify-content:center;
    font-size:16px;transition:background 0.2s;
}
.footer-social a:hover{background:var(--primary-light)}
.footer h4{
    color:white;font-size:15px;font-weight:700;margin-bottom:20px;
}
.footer-links{list-style:none}
.footer-links li{margin-bottom:10px}
.footer-links a{
    font-size:14px;opacity:0.7;transition:opacity 0.2s;
}
.footer-links a:hover{opacity:1}
.footer-bottom{
    border-top:1px solid rgba(255,255,255,0.1);
    padding:24px 0;
    display:flex;
    /*justify-content:space-between;*/
    justify-content: left;
    align-items:center;
    font-size:13px;opacity:0.5;
}
.footer-badges{display:flex;gap:16px;align-items:center}
.footer-badges span{
    padding:4px 12px;border-radius:4px;
    border:1px solid rgba(255,255,255,0.2);font-size:12px;
}