*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#F5F5F5;color:#1C1C1C;line-height:1.7}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto}header,.site-header{background:#00a6ff;color:#fff;position:sticky;top:0;z-index:10;box-shadow:0 8px 24px rgba(0,0,0,.12)}.container{width:min(1120px,92%);margin:auto}.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:72px}.logo{display:flex;gap:10px;align-items:center;font-weight:800;font-size:22px}.logo img{width:44px;height:44px;object-fit:contain;border-radius:12px;background:#fff}nav{display:none;gap:8px}nav a{padding:10px 14px;border-radius:999px;font-weight:700}nav a:hover{background:rgba(255,255,255,.18)}#nav-toggle{display:none}.mobile-nav{display:flex;flex-direction:column;gap:5px;padding:10px;border:1px solid rgba(255,255,255,.35);border-radius:14px}.mobile-nav span{width:24px;height:2px;background:#fff}#nav-toggle:checked~nav{display:flex;position:absolute;left:4%;right:4%;top:72px;flex-direction:column;background:#111111;color:#fff;padding:14px;border-radius:18px;box-shadow:0 20px 40px rgba(0,0,0,.22)}.hero,.banner{background:linear-gradient(135deg,#111111,#1C1C1C 55%,#00a6ff);color:#fff;padding:54px 0 36px}.hero-grid{display:grid;gap:28px;align-items:center}.hero h1,.page-hero h1{font-size:clamp(32px,6vw,60px);line-height:1.08;margin:12px 0}.hero p,.page-hero p{font-size:18px;max-width:760px;color:rgba(255,255,255,.88)}.tags{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}.tag,.eyebrow{display:inline-flex;background:rgba(0,166,255,.14);color:#dff6ff;border:1px solid rgba(255,255,255,.22);padding:8px 12px;border-radius:999px;font-weight:700;font-size:14px}section{padding:42px 0}.grid{display:grid;gap:18px}.card{background:#fff;border-radius:20px;padding:24px;box-shadow:0 12px 32px rgba(17,17,17,.08)}.card h2,.card h3{color:#111111;margin-top:0}.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:999px;background:#00a6ff;color:#fff;font-weight:800;padding:13px 22px;box-shadow:0 10px 24px rgba(0,166,255,.28);margin-top:12px}.btn:hover{transform:translateY(-1px)}.notice{background:#eaf8ff;border-left:5px solid #00a6ff;border-radius:18px;padding:18px;margin:18px 0;color:#1C1C1C}.faq{display:grid;gap:16px}.faq details{background:#fff;border-radius:18px;padding:18px;box-shadow:0 10px 28px rgba(17,17,17,.07)}.faq summary{font-weight:800;cursor:pointer}.page-hero{background:#111111;color:#fff;padding:44px 0}.content p{margin:0 0 16px}.content ul,.content ol{padding-left:22px}.footer{background:#00a6ff;color:#fff;padding:34px 0;margin-top:34px}.footer-grid{display:grid;gap:22px}.footer a{display:block;margin:6px 0;font-weight:700}.app-frame{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);border-radius:26px;padding:18px}@media (min-width:768px){nav{display:flex}.mobile-nav{display:none}.hero-grid{grid-template-columns:1.1fr .9fr}.grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1.4fr 1fr 1.2fr}}@media (min-width:1024px){.grid.three{grid-template-columns:repeat(3,1fr)}section{padding:56px 0}}