:root{--primary:#14bfed;--black:#111111;--dark:#1C1C1C;--mid:#2B2B2B;--light:#F5F5F5;--white:#ffffff;--text:#202124;--muted:#62666d;--border:#e7eaee;--shadow:0 18px 45px rgba(17,17,17,.08);--radius:20px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--light);color:var(--text);line-height:1.7;font-size:16px}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}.container{width:min(1120px,92%);margin:0 auto}.site-header{position:sticky;top:0;z-index:20;background:linear-gradient(135deg,var(--primary),#079bc5);box-shadow:0 10px 28px rgba(20,191,237,.22)}.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:76px;gap:20px}.logo{display:flex;align-items:center;font-weight:800;color:var(--white)}.logo img{height:46px;width:auto;object-fit:contain}nav{display:none;gap:8px;align-items:center}nav a{color:var(--white);font-weight:700;padding:10px 14px;border-radius:999px;transition:.2s ease}nav a:hover,nav a.active{background:rgba(255,255,255,.18)}.nav-toggle{position:absolute;opacity:0;pointer-events:none}.mobile-nav{display:flex;flex-direction:column;gap:5px;width:42px;height:42px;align-items:center;justify-content:center;border-radius:12px;background:rgba(255,255,255,.16);cursor:pointer}.mobile-nav span{width:22px;height:2px;background:var(--white);border-radius:99px}.nav-toggle:checked~nav{position:absolute;left:4%;right:4%;top:72px;display:grid;background:var(--dark);padding:14px;border-radius:18px;box-shadow:var(--shadow)}.hero{background:radial-gradient(circle at top right,rgba(20,191,237,.23),transparent 38%),linear-gradient(135deg,var(--black),var(--mid));color:var(--white);padding:54px 0 36px}.banner{display:grid;gap:32px;align-items:center}.hero h1,.page-hero h1{font-size:clamp(2rem,6vw,4.2rem);line-height:1.08;margin:0 0 18px}.hero p,.page-hero p{color:#eef8fb;margin:0 0 24px;max-width:720px}.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}.tag{display:inline-flex;align-items:center;background:rgba(20,191,237,.16);color:#dff9ff;border:1px solid rgba(20,191,237,.45);border-radius:999px;padding:8px 12px;font-weight:700;font-size:.92rem}.hero-media{background:rgba(255,255,255,.08);padding:18px;border-radius:28px;border:1px solid rgba(255,255,255,.12);box-shadow:0 20px 55px rgba(0,0,0,.28)}section{padding:46px 0}.section-title{margin:0 0 14px;font-size:clamp(1.55rem,4vw,2.3rem);line-height:1.2;color:var(--black)}.section-lead{color:var(--muted);max-width:760px;margin:0 0 22px}.grid{display:grid;gap:18px}.card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.card h2,.card h3{color:var(--black);margin-top:0;line-height:1.25}.card p:last-child{margin-bottom:0}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 22px;border-radius:999px;background:var(--primary);color:var(--black);font-weight:800;box-shadow:0 12px 26px rgba(20,191,237,.26);border:0;cursor:pointer}.btn:hover{filter:brightness(.96);transform:translateY(-1px)}.btn.secondary{background:var(--white);color:var(--black);box-shadow:none;border:1px solid var(--border)}.notice{background:#e9fbff;border:1px solid rgba(20,191,237,.35);border-left:5px solid var(--primary);border-radius:18px;padding:18px 20px;color:#124350}.notice strong{color:var(--black)}.page-hero{background:linear-gradient(135deg,var(--dark),var(--black));color:var(--white);padding:46px 0}.breadcrumb{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px;color:#c6f4ff;font-size:.95rem}.breadcrumb a{text-decoration:underline}.faq{display:grid;gap:14px}.faq details{background:var(--white);border:1px solid var(--border);border-radius:18px;padding:18px 20px;box-shadow:0 10px 25px rgba(17,17,17,.05)}.faq summary{font-weight:800;color:var(--black);cursor:pointer}.steps{counter-reset:step;display:grid;gap:14px}.step{position:relative;background:var(--white);border:1px solid var(--border);border-radius:18px;padding:20px 20px 20px 68px;box-shadow:0 10px 28px rgba(17,17,17,.05)}.step:before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:22px;width:32px;height:32px;border-radius:50%;background:var(--primary);display:grid;place-items:center;font-weight:900;color:var(--black)}.inline-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.inline-links a{padding:9px 12px;border:1px solid var(--border);border-radius:999px;background:var(--white);font-weight:700}.split{display:grid;gap:20px;align-items:center}.footer{background:linear-gradient(135deg,#079bc5,var(--primary));color:var(--black);padding:38px 0 18px;margin-top:30px}.footer-grid{display:grid;gap:26px}.footer h3{margin:0 0 10px}.footer a{display:block;font-weight:800;margin:6px 0}.footer-brand{font-size:1.5rem}.footer-bottom{border-top:1px solid rgba(17,17,17,.16);margin-top:24px;padding-top:16px;font-size:.92rem}.muted{color:var(--muted)}.highlight{color:var(--primary);font-weight:900}.list-check{padding-left:20px}.list-check li{margin:8px 0}.cta-box{text-align:center;background:var(--black);color:var(--white);border-radius:28px;padding:30px;box-shadow:var(--shadow)}.cta-box p{color:#eaf8fb}@media (min-width:768px){nav{display:flex}.mobile-nav{display:none}.banner{grid-template-columns:1.08fr .92fr}.grid.two{grid-template-columns:repeat(2,1fr)}.grid.three{grid-template-columns:repeat(3,1fr)}.split{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1.35fr .75fr 1.1fr}.hero{padding:76px 0 56px}.page-hero{padding:64px 0}}@media (min-width:1024px){body{font-size:17px}.grid.four{grid-template-columns:repeat(4,1fr)}section{padding:58px 0}.card{padding:28px}.hero-media{padding:24px}}