.app-help-dialog { width: calc(100% - 24px); max-width: 640px; height: min(88vh, 880px); height: min(88dvh, 880px); padding: 0; border: 1px solid #d4ded5; border-radius: 16px; color: #243b2e; background: #fff; }
.app-help-dialog[open] { display: flex; flex-direction: column; }
.app-help-dialog::backdrop { background: rgba(16, 31, 20, .42); }
.app-help-header { display: flex; justify-content: space-between; align-items: center; padding: 10px 16px; gap: 12px; border-bottom: 1px solid #e4e9e5; }
.app-help-header h2 { margin: 0; color: #194f2f; font-size: 19px; }
.app-help-dialog iframe { flex: 1; min-height: 0; width: 100%; border: 0; background: #fff; }
.app-help-footer { padding: 8px 16px 12px; border-top: 1px solid #e4e9e5; }
.app-help-footer p { margin: 0 0 8px; font-size: 12px; line-height: 1.4; color: #58675d; }
.app-help-footer button { min-height: 44px; }