:root{--cos-bg:#07091a;--cos-panel:#11152c;--cos-line:#272d50;--cos-text:#f7f8ff;--cos-muted:#aab0ca;--cos-pink:#ff3f9d;--cos-purple:#b52cff;--cos-blue:#3678ff}
.cos-header{position:sticky;top:0;z-index:1000;background:rgba(7,9,26,.88);backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,255,255,.08)}
.cos-nav{max-width:1240px;margin:auto;padding:12px 24px;display:flex;align-items:center;gap:18px}
.cos-brand{display:flex;align-items:center;flex:0 0 auto}.cos-brand img{display:block;width:168px;height:auto;max-height:46px;object-fit:contain}
.cos-links{margin-left:auto;display:flex;align-items:center;gap:4px;padding:5px;border:1px solid var(--cos-line);border-radius:18px;background:rgba(17,21,44,.72)}
.cos-links a{color:var(--cos-text);text-decoration:none;font-weight:700;font-size:14px;padding:12px 14px;border-radius:13px;white-space:nowrap}
.cos-links a:hover,.cos-links a.active{background:#24294e}.cos-links a.active:after{content:"";display:block;height:2px;margin-top:6px;border-radius:4px;background:linear-gradient(90deg,var(--cos-pink),var(--cos-blue))}
.cos-cta{margin-left:0;color:#fff!important;text-decoration:none;font-weight:800;padding:15px 20px;border-radius:14px;background:linear-gradient(100deg,var(--cos-pink),var(--cos-purple),var(--cos-blue));box-shadow:0 10px 28px rgba(125,67,255,.28);white-space:nowrap}
.cos-menu-btn{display:none;margin-left:auto;width:46px;height:42px;border-radius:12px;border:1px solid var(--cos-line);background:#12162e;padding:10px;cursor:pointer}.cos-menu-btn span{display:block;height:2px;background:#fff;margin:5px 0;border-radius:4px}
.cos-mobile{display:none;position:fixed;inset:0;z-index:2000;background:rgba(5,7,20,.98);padding:18px 20px;overflow:auto}.cos-mobile.open{display:block}.cos-mobile-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--cos-line)}.cos-mobile-top img{width:175px}.cos-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--cos-line);background:#151932;color:#fff;font-size:25px}.cos-mobile-links{display:grid;gap:10px;padding:24px 0}.cos-mobile-links a{display:flex;justify-content:space-between;color:#fff;text-decoration:none;font-weight:800;font-size:18px;padding:17px 16px;border:1px solid var(--cos-line);border-radius:14px;background:#10142a}.cos-mobile-links a:last-child{background:linear-gradient(100deg,var(--cos-pink),var(--cos-purple),var(--cos-blue));border:0;justify-content:center}
.cos-footer-logo{width:210px!important;height:auto!important;object-fit:contain}
@media(max-width:1120px){.cos-links a{padding:11px 9px;font-size:13px}.cos-brand img{width:145px}.cos-cta{padding:14px 15px}}
@media(max-width:920px){.cos-links,.cos-cta{display:none}.cos-menu-btn{display:block}.cos-nav{padding:10px 16px}.cos-brand img{width:170px}}