/* FreeModel Shared Theme — 咸鱼 Dark */
:root{
  --bg:#0f0f0f;
  --card:#1a1a1a;
  --border:#2a2a2a;
  --accent:#ff6b2b;
  --accent2:#ffc441;
  --green:#22c55e;
  --blue:#3b82f6;
  --red:#ef4444;
  --text:#a0a0a0;
  --title:#e5e5e5;
  --muted:#666;
  --font:'Inter',system-ui,-apple-system,sans-serif;
}

/* Shared top navigation */
.topbar{
  position:sticky;top:0;z-index:100;
  display:flex;align-items:center;gap:12px;
  padding:0 16px;height:48px;
  background:var(--bg);border-bottom:1px solid var(--border);
}
.topbar .logo{
  font-size:18px;font-weight:800;color:var(--title);
  letter-spacing:-0.02em;text-decoration:none;flex-shrink:0;
}
.topbar .logo span{color:var(--accent)}
.topbar .nav-links{display:flex;gap:4px;align-items:center}
.topbar .nav-links a{
  padding:6px 14px;border-radius:6px;font-size:13px;font-weight:500;
  color:var(--text);text-decoration:none;transition:all .15s;
}
.topbar .nav-links a:hover{color:var(--title);background:rgba(255,255,255,0.04)}
.topbar .nav-links a.active{color:var(--accent);background:rgba(255,107,43,0.08)}
.topbar .nav-right{margin-left:auto;display:flex;align-items:center;gap:8px}
.topbar .btn-login{
  padding:7px 18px;border-radius:20px;border:1px solid var(--border);
  background:0;color:var(--text);font-size:13px;cursor:pointer;
  text-decoration:none;transition:all .15s;
}
.topbar .btn-login:hover{border-color:var(--accent);color:var(--accent)}