.abc-tabs{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0}.abc-tabs button{background:white;color:#245249;border:1px solid #b7cabc}.abc-tabs button[aria-pressed=true]{background:#245249;color:white}.abc-panel{padding:26px;background:white;border:1px solid #cbd8d2;border-radius:22px;margin-bottom:32px}.abc-board{display:grid;grid-template-columns:repeat(auto-fit,minmax(76px,1fr));gap:12px;direction:ltr}.abc-board button{background:#edf3e6;color:#173f38;font-size:1.8rem;min-height:80px;border:2px solid transparent}.abc-board button[aria-pressed=true]{border-color:#7952a0;background:#fff0bc}.abc-board button.matched{background:#c7e8d2;opacity:1}.abc-board.order{display:flex;justify-content:center;flex-wrap:wrap}.abc-sequence{direction:ltr;font-size:2.6rem;letter-spacing:.15em;text-align:center;flex-basis:100%;color:#173f38}.abc-board button[disabled]{opacity:1}.abc-songs{display:grid;grid-template-columns:1fr 1fr;gap:22px}.abc-songs a{display:block;overflow:hidden;border-radius:20px;background:white;text-decoration:none;border:1px solid #cbd8d2}.abc-songs img{width:100%;height:auto;display:block}.abc-songs h3,.abc-songs p{margin:16px}.abc-songs a:hover{outline:2px solid #245249}#abc-detail{font-size:1.4rem;padding-top:20px}#abc-feedback{font-weight:bold;margin-top:18px}@media(max-width:600px){.abc-songs{grid-template-columns:1fr}.abc-panel{padding:18px}.abc-board{grid-template-columns:repeat(3,minmax(0,1fr))}.abc-tabs button{flex:1;font-size:.9rem;padding:10px}.abc-board button{font-size:1.6rem}}