:root{--primary:#1678ff;--black:#111111;--dark:#1C1C1C;--mid:#2B2B2B;--light:#F5F5F5;--white:#ffffff;--radius:18px;--shadow:0 14px 32px rgba(17,17,17,.10)}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--light);color:var(--black);line-height:1.7} a{color:inherit;text-decoration:none} img{max-width:100%;height:auto;display:block} .container{width:min(1120px,92%);margin:0 auto} section{padding:42px 0} header,.site-header{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid rgba(17,17,17,.08);box-shadow:0 6px 20px rgba(17,17,17,.04)}
.header-inner{min-height:72px;display:grid;grid-template-columns:52px 1fr 0;align-items:center;width:min(1120px,94%);margin:0 auto;gap:12px} .logo{display:flex;justify-content:center;align-items:center} .logo img{width:132px;max-height:54px;object-fit:contain} .main-nav,.header-actions{display:none} nav a{font-weight:700;font-size:14px} .mobile-menu-toggle{width:42px;height:42px;border:0;border-radius:14px;background:var(--primary);color:#fff;font-size:24px;line-height:1;cursor:pointer} .mobile-nav{display:none;width:min(1120px,94%);margin:0 auto 10px;padding:12px;background:#fff;border-radius:16px;box-shadow:var(--shadow);gap:8px} .mobile-nav.is-open{display:grid} .mobile-nav a{padding:10px 12px;border-radius:12px;background:var(--light)} .mobile-actions{display:flex;gap:10px;justify-content:center;padding:0 16px 14px} .btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 22px;border-radius:999px;background:linear-gradient(135deg,var(--primary),#0a4fb8);color:#fff;font-weight:800;box-shadow:0 10px 20px rgba(22,120,255,.25);border:0} .btn-small{padding:10px 16px;font-size:14px} .btn-alt{background:linear-gradient(135deg,#2B2B2B,#111)} .hero,.banner{background:linear-gradient(135deg,#ffffff,#edf5ff);padding:46px 0;border-bottom:1px solid rgba(17,17,17,.06)} .hero-grid{display:grid;gap:26px;align-items:center} .hero h1{font-size:34px;line-height:1.18;margin:0 0 14px} .hero p{font-size:16px;color:#333;margin:0 0 18px} .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0} .hero-tags span,.tag{background:rgba(22,120,255,.12);color:#0f57be;border:1px solid rgba(22,120,255,.25);padding:8px 12px;border-radius:999px;font-weight:700;font-size:13px} .app-card{background:#fff;border-radius:24px;padding:18px;box-shadow:var(--shadow)} .grid{display:grid;gap:18px} .grid-2,.grid-3{grid-template-columns:1fr} .card{background:#fff;border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);border:1px solid rgba(17,17,17,.06)} .card h2,.card h3{margin-top:0;line-height:1.3} .notice{background:#fff8e8;border-left:5px solid var(--primary);border-radius:16px;padding:18px;margin:22px 0;color:#27200d} .faq{display:grid;gap:14px} .faq-item{background:#fff;border-radius:18px;padding:18px;box-shadow:var(--shadow)} .faq-item h3{margin:0 0 8px} .page-hero{background:#fff;padding:38px 0;border-bottom:1px solid rgba(17,17,17,.06)} .page-hero h1{margin:0 0 8px;font-size:32px} .links{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px} .footer{background:var(--dark);color:#fff;padding:38px 0;margin-top:40px} .footer a{display:block;color:#f2f2f2;margin:6px 0} .footer p{color:#ddd} .footer-logo img{width:130px;margin-bottom:12px} .footer-grid{display:grid;gap:22px}
@media (min-width:768px){.header-inner{grid-template-columns:170px 1fr auto;min-height:82px}.mobile-menu-toggle,.mobile-nav,.mobile-actions{display:none!important}.logo{justify-content:flex-start}.main-nav{display:flex;justify-content:center;gap:22px}.header-actions{display:flex;gap:10px}.hero-grid{grid-template-columns:1.1fr .9fr}.hero h1{font-size:46px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:1.3fr .7fr 1fr}}
@media (min-width:1024px){.header-inner{width:min(1180px,92%);gap:24px}.main-nav{gap:30px}.logo img{width:150px}section{padding:56px 0}.hero{padding:70px 0}.hero h1{font-size:54px}}