:root{--c-bg:rgb(255,255,255);--c-text:#1f2937;--c-muted:#6b7280;--c-border:#e5e7eb;--c-primary:#0f172a;--c-hover:#334155;--c-gray-bg:#f8fafc;}
*{box-sizing:border-box;margin:0;padding:0;}
body{font-family:system-ui,-apple-system,sans-serif;background:var(--c-bg);color:var(--c-text);line-height:1.6;-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none;}
ul,ol{list-style:none;}
img{max-width:100%;height:auto;display:block;}
.container{width:92%;max-width:1200px;margin:0 auto;}

.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,0.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--c-border);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;}
.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:#111;white-space:nowrap;}
.desktop-nav{display:none;}
.desktop-nav a{font-weight:500;padding:8px 16px;border-radius:6px;transition:0.3s;}
.desktop-nav a:hover{background:var(--c-gray-bg);color:var(--c-primary);}
.header-actions{display:flex;align-items:center;gap:16px;}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 24px;border-radius:8px;font-weight:600;transition:0.3s;cursor:pointer;}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-hover);transform:translateY(-2px);}
.menu-toggle{background:none;border:none;cursor:pointer;display:flex;color:var(--c-text);}
@media (min-width:992px){.desktop-nav{display:flex;align-items:center;gap:8px;} .menu-toggle{display:none;}}
.drawer-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.5);opacity:0;visibility:hidden;transition:0.3s;z-index:999;}
.drawer-overlay.active{opacity:1;visibility:visible;}
.mobile-drawer{position:fixed;top:0;left:0;bottom:0;width:280px;background:#fff;z-index:1000;transform:translateX(-100%);transition:transform 0.4s cubic-bezier(0.4,0,0.2,1);display:flex;flex-direction:column;}
.mobile-drawer.active{transform:translateX(0);}
.drawer-header{padding:20px;border-bottom:1px solid var(--c-border);display:flex;align-items:center;justify-content:space-between;}
.drawer-close{background:none;border:none;cursor:pointer;color:var(--c-muted);}
.drawer-body{padding:20px;overflow-y:auto;flex:1;}
.mobile-nav{display:flex;flex-direction:column;gap:12px;}
.mobile-nav a{display:block;padding:12px;font-size:16px;font-weight:500;border-radius:8px;background:var(--c-gray-bg);}
.mobile-nav-btn{margin-top:20px;text-align:center;background:var(--c-primary)!important;color:#fff!important;}

.dl-hero{padding:80px 0;text-align:center;}
.dl-hero h1{font-size:36px;margin-bottom:16px;}
.dl-hero p{font-size:18px;color:var(--c-muted);max-width:600px;margin:0 auto 40px;}
.platforms{display:flex;justify-content:center;gap:32px;flex-wrap:wrap;}
.platform-card{background:var(--c-gray-bg);border:1px solid var(--c-border);border-radius:16px;padding:40px;width:100%;max-width:320px;text-align:center;transition:0.3s;}
.platform-card:hover{border-color:var(--c-primary);box-shadow:0 12px 24px rgba(0,0,0,0.05);transform:translateY(-4px);}
.p-icon{font-size:48px;margin-bottom:20px;}
.platform-card h3{font-size:24px;margin-bottom:12px;}
.platform-card p{color:var(--c-muted);margin-bottom:24px;}
.steps-section{padding:80px 0;background:var(--c-gray-bg);}
.steps-grid{display:grid;grid-template-columns:1fr;gap:32px;margin-top:40px;}
@media (min-width:768px){.steps-grid{grid-template-columns:repeat(3, 1fr);}}
.step-item{background:#fff;padding:32px;border-radius:16px;text-align:center;position:relative;}
.step-num{position:absolute;top:-20px;left:50%;transform:translateX(-50%);width:40px;height:40px;background:var(--c-primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:bold;font-size:20px;border:4px solid var(--c-gray-bg);}
.step-item h4{margin-top:20px;margin-bottom:12px;font-size:20px;}
.step-item p{color:var(--c-muted);font-size:15px;}

.site-footer{background:#fff;border-top:1px solid var(--c-border);padding:60px 0 0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:48px;margin-bottom:60px;}
@media (min-width:768px){.footer-grid{grid-template-columns:1fr 2fr;}}
.footer-brand p{color:var(--c-muted);margin-top:20px;font-size:14px;}
.footer-navs{display:grid;grid-template-columns:repeat(2, 1fr);gap:32px;}
@media (min-width:768px){.footer-navs{grid-template-columns:repeat(3, 1fr);}}
.footer-col h4{font-size:16px;font-weight:700;margin-bottom:20px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{color:var(--c-muted);font-size:14px;transition:0.3s;}
.footer-col a:hover{color:var(--c-primary);}
.footer-bottom{border-top:1px solid var(--c-gray-bg);padding:24px 0;text-align:center;color:var(--c-muted);font-size:14px;}