html{scroll-behavior:smooth}body{font-family:Arial,Helvetica,sans-serif;background:#f7fafc;color:#172b3a}img{max-width:100%;display:block}a{text-decoration:none}.site-header{width:min(1200px,calc(100% - 30px));min-height:76px;margin:15px auto;padding:8px 18px;display:flex;align-items:center;justify-content:space-between;gap:25px;background:linear-gradient(135deg,#83145f,#159bd7);border-radius:18px;position:sticky;top:15px;z-index:1000;box-shadow:0 10px 30px rgba(20,50,70,0.15)}.head-logo{flex-shrink:0;background:white;height:60px;width:60px;border:1px solid white;border-radius:50%;align-items:center}.head-logo img{width:auto;height:58px;display:block}.head-menu{flex:1}.head-menu ul{list-style:none;display:flex;justify-content:center;align-items:center;gap:28px}.head-menu a{position:relative;color:#fff;font-size:16px;font-weight:600;padding:8px 2px}.head-menu a::after{content:"";position:absolute;left:0;bottom:2px;width:0;height:2px;background:#fff;transition:width 0.25s ease}.head-menu a:hover::after{width:100%}