:root{--primary:rgb(66,66,66);--primary-hover:#2b2b2b;--bg-color:#f4f6f8;--white:#ffffff;--text-dark:#111827;--text-gray:#4b5563;--border:#e5e7eb}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg-color);color:var(--text-gray);line-height:1.6}
a{text-decoration:none;color:inherit;transition:all .3s}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.header{background:var(--white);box-shadow:0 2px 10px rgba(0,0,0,.05);position:sticky;top:0;z-index:100}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:inline-flex;align-items:center;gap:12px;text-decoration:none}
.logo img{display:block;height:40px;width:auto;max-width:160px;object-fit:contain;flex-shrink:0}
.logo span{display:inline-block;font-size:20px;font-weight:800;line-height:1;color:var(--text-dark);white-space:nowrap}
.desktop-nav{display:flex;gap:24px}
.desktop-nav a{font-weight:500;color:var(--text-dark);position:relative}
.desktop-nav a:hover{color:var(--primary)}
.header-actions{display:flex;align-items:center;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 24px;font-weight:600;border-radius:6px;cursor:pointer;transition:all .3s;text-align:center}
.btn-primary{background:var(--primary);color:var(--white)}
.btn-primary:hover{background:var(--primary-hover);box-shadow:0 4px 12px rgba(66,66,66,.3)}
.btn-outline{border:1px solid var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:var(--white)}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;color:var(--text-dark)}
.drawer-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);opacity:0;visibility:hidden;z-index:1000;transition:all .3s}
.drawer-nav{position:fixed;top:0;left:-300px;width:280px;height:100%;background:var(--white);z-index:1001;transition:all .3s;display:flex;flex-direction:column}
.drawer-overlay.active{opacity:1;visibility:visible}
.drawer-nav.active{left:0;box-shadow:4px 0 15px rgba(0,0,0,.1)}
.drawer-header{display:flex;align-items:center;justify-content:space-between;padding:20px;border-bottom:1px solid var(--border)}
.drawer-close{background:none;border:none;cursor:pointer;color:var(--text-dark)}
.drawer-body{padding:20px;overflow-y:auto;flex:1}
.drawer-body a{display:block;padding:12px 0;font-size:16px;font-weight:500;color:var(--text-dark);border-bottom:1px solid #f3f4f6}
.drawer-footer-actions{padding:20px;border-top:1px solid var(--border)}
.footer{background:#1a1a1a;color:#9ca3af;padding:60px 0 20px;margin-top:60px}
.footer-logo span{color:var(--white)}
.footer-inner{display:grid;grid-template-columns:1fr 2fr;gap:40px;margin-bottom:40px}
.footer-desc{margin:20px 0;font-size:14px;line-height:1.8}
.footer-links-group{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.footer-title{color:var(--white);font-size:16px;margin-bottom:20px;font-weight:600}
.footer-links ul{list-style:none}
.footer-links li{margin-bottom:12px;font-size:14px}
.footer-links a:hover{color:var(--white)}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid #333;font-size:14px}
.section{padding:80px 0}
.dl-card{background:var(--white);border-radius:16px;padding:40px;box-shadow:0 10px 30px rgba(0,0,0,.05);border:1px solid var(--border);text-align:center;position:relative;overflow:hidden}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:40px}
@media(max-width:992px){.desktop-nav,.header-actions .btn{display:none}.menu-toggle{display:block}.grid-2{grid-template-columns:1fr}.footer-inner{grid-template-columns:1fr}.footer-links-group{grid-template-columns:1fr 1fr}}