.support-notice { position: fixed; right: 18px; bottom: 18px; z-index: 50; box-sizing: border-box; width: min(340px, calc(100vw - 36px)); max-height: 70dvh; overflow: auto; padding: 20px; border: 1px solid var(--line); border-radius: 14px; color: var(--ink); background: var(--paper); box-shadow: 0 12px 45px #0005; font: 13px/1.5 "Instrument Sans", sans-serif; }
.support-notice h2 { font: 600 18px/1.3 "Instrument Sans", sans-serif; margin: 0 0 10px; }
.support-notice p { margin: 10px 0; }
.support-notice summary { color: var(--accent); cursor: pointer; padding: 8px 0; }
.support-notice button { border: 1px solid var(--line); border-radius: 20px; padding: 10px 18px; min-height: 44px; margin-top: 12px; font: inherit; background: transparent; color: var(--ink); cursor: pointer; }
.support-notice :focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.video-modal-open .support-notice { display: none; }