:root{
  --bg:#0b0f14;
  --panel:#101722;
  --ink:#e8eef7;
  --muted:#9ab0c7;
  --primary:#25a0ff;
  --accent:#ff2d2d;
  --gold:#ffd21f;
  --outline:#1b2533;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family: 'Orbitron', system-ui, -apple-system, Segoe UI, Roboto, 'Microsoft YaHei', sans-serif}
a{color:var(--primary);text-decoration:none}
header{padding:40px 20px;text-align:center;border-bottom:1px solid var(--outline); background: radial-gradient(1000px 300px at 50% -50%, rgba(37,160,255,.25), transparent)}
.brand{display:flex;align-items:center;justify-content:center;gap:14px}
.brand .title{font-size:42px;font-weight:800;letter-spacing:.06em}
.brand .title .h{color:var(--accent)}
.brand .title .v{color:var(--primary)}
.tag{color:var(--gold);margin-top:8px;font-size:14px}
nav{display:flex;gap:18px;justify-content:center;margin:18px 0; flex-wrap:wrap}
nav a{padding:10px 14px;border:1px solid var(--outline);border-radius:999px}
.container{max-width:1080px;margin:0 auto;padding:24px}
.grid{display:grid;grid-template-columns:1fr;gap:22px}
.card{background:linear-gradient(180deg, rgba(16,23,34,.6), rgba(16,23,34,.3));border:1px solid var(--outline);border-radius:18px;padding:22px}
h2{margin:0 0 10px 0;font-size:26px}
.zh{color:#d6dce6}
footer{margin-top:40px;border-top:1px solid var(--outline);text-align:center;padding:20px;color:var(--muted);font-size:14px}
.lang-switch{display:flex;gap:8px;justify-content:center;margin-top:14px;align-items:center}
.lang-switch .label{color:var(--muted);font-size:12px;margin-right:6px}
.lang-switch button{background:transparent;border:1px solid var(--outline);color:var(--ink);padding:8px 12px;border-radius:999px;cursor:pointer}
.lang-switch button.active{border-color:var(--primary)}
.cta{display:inline-flex;align-items:center;gap:10px;margin-top:8px}
form{display:flex;flex-direction:column;gap:12px;max-width:520px}
input, textarea{background:#0f1724;border:1px solid var(--outline);color:var(--ink);padding:12px;border-radius:12px}
button.primary{background:var(--primary);border:none;color:white;padding:12px 14px;border-radius:12px;font-weight:700;cursor:pointer}
.notice{font-size:12px;color:var(--muted)}
.hero{margin-top:14px}
.logo{height:60px}
.section{margin:20px 0}
.projects{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin-top:8px}
.project{border:1px solid var(--outline);border-radius:16px;padding:16px;background:rgba(16,23,34,.45)}
.project h3{margin:0 0 6px 0;font-size:18px}
.project p{margin:0;font-size:14px;color:#c8d5e6}
.badge{display:inline-block;border:1px solid var(--outline);padding:4px 8px;border-radius:999px;font-size:12px;color:#9ab0c7;margin-top:6px}