:root{
  --v472-bg:#eef5fb;
  --v472-dark:#061827;
  --v472-dark2:#0a2d48;
  --v472-blue:#188cff;
  --v472-cyan:#1cc9d9;
  --v472-text:#13243a;
  --v472-muted:#687e91;
  --v472-line:#d8e5ef;
  --v472-card:#fff;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body.v472-body{margin:0;background:var(--v472-bg);color:var(--v472-text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
.v472-shell{width:min(1100px,calc(100% - 28px));margin:auto}
.v472-header{background:#fff;border-bottom:1px solid #e2ebf2;position:sticky;top:0;z-index:50}
.v472-header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.v472-brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--v472-text)}
.v472-brand-mark{display:grid;place-items:center;width:48px;height:48px;border-radius:15px;background:linear-gradient(135deg,var(--v472-cyan),var(--v472-blue));color:#fff;font-weight:900;font-size:22px;box-shadow:0 10px 26px rgba(24,140,255,.2)}
.v472-brand>span:last-child{display:grid}
.v472-brand strong{font-size:20px;letter-spacing:.06em}
.v472-brand small{font-size:12px;color:#788c9d;margin-top:2px}
.v472-back{padding:11px 15px;border-radius:13px;background:#edf6fd;color:#166da9;text-decoration:none;font-weight:800}

.v472-hero{padding:24px 0 52px;background:radial-gradient(circle at 78% 12%,rgba(31,161,255,.25),transparent 30%),linear-gradient(135deg,var(--v472-dark),var(--v472-dark2));color:#fff}
.v472-banner{margin-bottom:28px;border-radius:24px;overflow:hidden;box-shadow:0 20px 48px rgba(0,0,0,.2)}
.v472-banner img{display:block;width:100%;height:auto;object-fit:contain;background:#071625}
.v472-hero-copy{max-width:760px}
.v472-badge{display:inline-flex;padding:10px 16px;border-radius:999px;border:1px solid rgba(96,215,255,.32);background:rgba(41,158,219,.12);color:#7ee1ff;font-size:13px;font-weight:900;letter-spacing:.04em}
.v472-hero h1{font-size:clamp(38px,7vw,68px);line-height:1.02;margin:18px 0 12px}
.v472-hero p{margin:0;color:#c4d5e2;font-size:20px;line-height:1.6}
.v472-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:28px}
.v472-stats article{display:flex;align-items:center;gap:13px;padding:18px;border-radius:18px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1)}
.v472-stats article>span{font-size:28px}
.v472-stats b,.v472-stats small{display:block}
.v472-stats b{font-size:20px}
.v472-stats small{color:#aac1d2;margin-top:3px}

.v472-main{padding:34px 0 72px}
.v472-alert{padding:15px 18px;border-radius:16px;margin-bottom:18px;font-weight:800}
.v472-alert.success{background:#e6fff2;color:#176b45;border:1px solid #baeacf}
.v472-alert.error{background:#fff0f0;color:#963333;border:1px solid #efcaca}
.v472-section{margin-bottom:34px}
.v472-heading span{color:var(--v472-blue);font-size:12px;letter-spacing:.2em;font-weight:900}
.v472-heading h2{font-size:38px;line-height:1.08;margin:8px 0 8px}
.v472-heading p{margin:0;color:var(--v472-muted);font-size:17px;line-height:1.6}
.v472-heading.center{text-align:center;max-width:760px;margin:0 auto 24px}

.v472-prize-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.v472-prize-card{display:flex;align-items:center;gap:16px;padding:22px;background:#fff;border:1px solid var(--v472-line);border-radius:24px;box-shadow:0 14px 34px rgba(29,58,83,.06)}
.v472-prize-number{display:grid;place-items:center;width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,var(--v472-blue),var(--v472-cyan));color:#fff;font-size:22px;font-weight:900;flex:0 0 auto}
.v472-prize-card h3{margin:0 0 6px;font-size:22px}
.v472-prize-card p{margin:0;color:var(--v472-muted)}

.v472-form-layout{display:grid;grid-template-columns:1.08fr .92fr;gap:20px;align-items:start}
.v472-form-card,.v472-how-card,.v472-rules-card{background:#fff;border:1px solid var(--v472-line);border-radius:28px;padding:28px;box-shadow:0 16px 38px rgba(31,59,83,.06)}
.v472-form{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:24px}
.v472-form label{font-weight:800;color:#334b60}
.v472-form input{display:block;width:100%;margin-top:8px;padding:15px 14px;border:1px solid #ccd9e4;border-radius:14px;font:inherit;background:#fff;color:#13243a}
.v472-form input:focus{outline:none;border-color:#2a9bf1;box-shadow:0 0 0 4px rgba(42,155,241,.1)}
.v472-terms-check{grid-column:1/-1;display:flex!important;align-items:flex-start;gap:10px;padding:15px;background:#f4faff;border:1px solid #cfe4f3;border-radius:16px}
.v472-terms-check input{width:20px!important;height:20px;margin:0!important;flex:0 0 auto}
.v472-terms-check a{color:#167bc5}
.v472-primary-btn{grid-column:1/-1;border:0;border-radius:16px;padding:16px;background:linear-gradient(135deg,var(--v472-cyan),var(--v472-blue));color:#fff;font-size:17px;font-weight:900;cursor:pointer;box-shadow:0 14px 28px rgba(24,140,255,.2)}
.v472-closed{margin-top:20px;padding:18px;border-radius:16px;background:#fff5df;color:#7b5a16}

.v472-steps{display:grid;gap:14px;margin-top:24px}
.v472-steps article{display:flex;gap:13px;align-items:flex-start;padding:15px;border-radius:18px;background:#f6f9fc;border:1px solid #e1eaf1}
.v472-steps article>b{display:grid;place-items:center;width:40px;height:40px;border-radius:13px;background:#0d2c47;color:#fff;flex:0 0 auto}
.v472-steps strong{display:block;font-size:17px}
.v472-steps p{margin:4px 0 0;color:var(--v472-muted);line-height:1.5}

.v472-winner-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.v472-winner-grid article{padding:22px;border-radius:22px;background:linear-gradient(135deg,#071927,#0d3553);color:#fff}
.v472-winner-grid span{color:#6edaff;font-size:13px;font-weight:900}
.v472-winner-grid h3{font-size:24px;margin:8px 0}
.v472-winner-grid p{margin:0;color:#cedbe5}
.v472-winner-grid small{display:block;margin-top:10px;color:#93aabb}

.v472-rules-card ol{margin:0;padding-left:28px;display:grid;gap:12px}
.v472-rules-card li{color:#536a7d;line-height:1.65;padding-left:4px}
.v472-rules-card li::marker{font-weight:900;color:var(--v472-blue)}
.v472-extra{margin-top:24px;padding:18px;border-radius:18px;background:#eef7ff;border:1px solid #d1e6f7}
.v472-extra strong{display:block;margin-bottom:6px;color:#194362}
.v472-extra p{margin:0;color:#60778a;line-height:1.6}

.v472-faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.v472-faq-grid article{background:#fff;border:1px solid var(--v472-line);border-radius:22px;padding:22px;box-shadow:0 12px 30px rgba(30,59,83,.05)}
.v472-faq-grid h3{margin:0 0 9px;font-size:21px}
.v472-faq-grid p{margin:0;color:var(--v472-muted);line-height:1.6}

.v472-contact{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:28px;border-radius:26px;background:linear-gradient(135deg,#071827,#0a3150);color:#fff}
.v472-contact span{color:#74d8ff;font-size:13px;font-weight:900}
.v472-contact h2{font-size:30px;margin:7px 0 0}
.v472-contact a{padding:14px 20px;border-radius:15px;background:#20c76a;color:#fff;text-decoration:none;font-weight:900;white-space:nowrap}
.v472-footer{text-align:center;padding:24px;background:#061522;color:#8fa7b8}

@media(max-width:900px){
  .v472-form-layout{grid-template-columns:1fr}
}
@media(max-width:760px){
  .v472-stats,.v472-prize-grid,.v472-winner-grid,.v472-faq-grid,.v472-form{grid-template-columns:1fr}
  .v472-heading h2{font-size:31px}
  .v472-hero h1{font-size:42px}
  .v472-hero p{font-size:17px}
  .v472-form-card,.v472-how-card,.v472-rules-card{padding:20px}
  .v472-contact{display:block}
  .v472-contact a{display:flex;justify-content:center;margin-top:18px}
  .v472-brand small{display:none}
  .v472-back{font-size:13px}
}
@media(max-width:480px){
  .v472-shell{width:min(100% - 18px,1100px)}
  .v472-header-inner{min-height:68px}
  .v472-brand strong{font-size:17px}
  .v472-brand-mark{width:42px;height:42px}
  .v472-back{padding:9px 11px}
  .v472-hero{padding-top:14px}
  .v472-banner{border-radius:15px;margin-bottom:20px}
  .v472-hero h1{font-size:37px}
  .v472-stats article{padding:14px}
  .v472-main{padding-top:24px}
}