.learning-hint{margin:16px 0;border:1px solid #bcd8cc;border-radius:14px;background:#f1f7f3;overflow:hidden;text-align:left;font-size:16px;color:#17283a}
.learning-hint summary{padding:13px 16px;min-height:48px;cursor:pointer;font-weight:700;touch-action:manipulation}
.learning-hint summary:focus-visible{outline:3px solid #348e80;outline-offset:-3px}
.learning-hint img{display:block;width:auto;max-width:100%;max-height:340px;object-fit:contain;margin:12px auto;border-radius:8px}
.learning-hint p{margin:12px 16px;line-height:1.6}.learning-hint .hint-note{font-size:13px;color:#586770}
.released-hint{padding:16px}.released-hint img{max-height:360px}
@media(max-width:600px){.learning-hint img{width:100%;max-height:260px}.learning-hint{font-size:15px}}