/* ปุ่ม "วิธีใช้" ที่ลิงก์ไปหน้าคู่มือ (/manual/*) — สีส้มทองตัดกับธีมม่วง + แสงกะพริบเบา ๆ ให้สังเกตเห็น */
.gm-help-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 14px; border-radius: 999px;
  background: linear-gradient(135deg, #ffb020, #ff7a18);
  color: #fff !important; font-size: 14px; font-weight: 600; line-height: 1.4; text-decoration: none !important;
  box-shadow: 0 0 0 0 rgba(255, 138, 24, .55);
  animation: gmHelpPulse 1.8s ease-out infinite;
  transition: transform .15s ease, filter .15s ease;
  white-space: nowrap;
}
.gm-help-btn i { font-size: 15px; }
.gm-help-btn:hover, .gm-help-btn:focus { transform: translateY(-2px) scale(1.04); filter: brightness(1.08); color: #fff !important; }
.gm-help-btn:active { transform: translateY(0) scale(.98); }
@keyframes gmHelpPulse {
  0%   { box-shadow: 0 0 0 0 rgba(255, 138, 24, .55); }
  70%  { box-shadow: 0 0 0 10px rgba(255, 138, 24, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 138, 24, 0); }
}
@media (prefers-reduced-motion: reduce) { .gm-help-btn { animation: none; } }