:root { --bg:#0b1220; --fg:#f6f7fb; --accent:#1fb6ff; --muted:#9aa3b2; }
*{box-sizing:border-box} body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu; background:var(--bg);color:var(--fg);}
a{color:var(--accent);text-decoration:none}
header{position:sticky;top:0;background:#0e172a99;backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid #223; }
.nav{max-width:1100px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:12px 16px;}
.logo{display:flex;gap:10px;align-items:center;font-weight:700;letter-spacing:.3px}
.logo svg{height:28px}
.menu a{margin:0 10px;color:var(--fg);opacity:.9}
.menu a.active{opacity:1;border-bottom:2px solid var(--accent);padding-bottom:2px}
.container{max-width:1100px;margin:0 auto;padding:28px 16px;}
.hero{padding:56px 0}
h1{font-size:42px;margin:.2em 0}
h2{font-size:28px;margin:1.2em 0 .4em}
h3{margin:1em 0 .2em}
p{line-height:1.6;color:#e6e8ee}
.btn{display:inline-block;background:var(--accent);color:#001; padding:10px 16px;border-radius:10px;font-weight:700}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));}
.card{background:#0f1b33;border:1px solid #1b2a4a;border-radius:16px;padding:16px}
footer{border-top:1px solid #223; color:var(--muted);}
footer .container{display:flex;justify-content:space-between;flex-wrap:wrap}
small, .muted{color:var(--muted)}
hr{border:0;border-top:1px solid #223;margin:24px 0}
input,select,textarea{width:100%;background:#0f1b33;border:1px solid #1b2a4a;border-radius:10px;color:var(--fg);padding:10px}
label{display:block;margin:.6em 0 .2em;color:#cfd6e6}
.form{max-width:720px}
.notice{background:#10213f;border:1px dashed #224;border-radius:12px;padding:12px;color:#cfe3ff}