.sing-hero { padding: 52px 0 58px; background: #e8f1ff; }
.sing-hero .breadcrumbs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; font-size: 14px; }
.sing-hero .eyebrow { color: #5964a9; }
.sing-hero h1 { max-width: 850px; margin: 0 0 14px; font-family: var(--display); font-size: clamp(38px, 6vw, 66px); line-height: 1.08; }
.sing-hero p:last-child { max-width: 750px; margin: 0; font-size: 18px; line-height: 1.6; }
.sing-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.sing-card { display: flex; flex-direction: column; padding: 28px; border: 1px solid #d9e1f0; border-radius: 24px; background: #fff; box-shadow: 0 10px 26px rgba(40, 63, 95, .06); }
.sing-card:nth-child(3n + 1) { background: #fff8e8; }
.sing-card:nth-child(3n + 2) { background: #f1f8f2; }
.sing-card:nth-child(3n) { background: #f4f1ff; }
.sing-note { display: grid; place-items: center; width: 56px; height: 56px; margin-bottom: 20px; border-radius: 18px; background: #dfe9ff; color: #5964a9; font-size: 34px; }
.sing-card .eyebrow { margin-bottom: 8px; color: #5964a9; }
.sing-card h3 { margin: 0 0 10px; font-family: var(--display); font-size: 26px; }
.sing-card p:not(.eyebrow) { margin: 0 0 22px; line-height: 1.6; }
.sing-card-lyrics { display: grid; gap: 6px; margin: 0 0 20px; padding: 0; list-style: none; }
.sing-card-lyrics li { padding: 7px 11px; border-radius: 8px; background: rgba(255, 255, 255, .7); font-size: 15px; line-height: 1.45; }
.sing-audio-label { display: block; margin-top: auto; margin-bottom: 8px; font-weight: 800; }
.sing-card audio { display: block; width: 100%; margin-bottom: 18px; }
.sing-card .text-link { margin-top: auto; }
.sing-steps { padding-top: 15px; }
.sing-step-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.sing-step-grid > div { padding: 24px; border-radius: 20px; background: #e8f1ff; }
.sing-step-grid b { color: #5964a9; font-size: 25px; }
.sing-step-grid h3 { margin: 10px 0; font-family: var(--display); font-size: 23px; }
.sing-step-grid p { margin: 0; }
.sing-detail { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(230px, .7fr); align-items: start; gap: 28px; }
.sing-sheet, .sing-related { padding: clamp(22px, 4vw, 38px); border: 1px solid #d9e1f0; border-radius: 25px; background: #fff; box-shadow: 0 12px 30px rgba(40, 63, 95, .06); }
.sing-sheet-head { display: flex; align-items: center; gap: 18px; }
.sing-sheet-head > span { display: grid; place-items: center; flex: 0 0 56px; height: 56px; border-radius: 18px; background: #e8f1ff; color: #5964a9; font-size: 34px; }
.sing-sheet-head .eyebrow { margin: 0; color: #5964a9; }
.sing-sheet-head h2 { margin: 0; font-family: var(--display); font-size: 30px; }
.sing-lyrics { display: grid; gap: 10px; margin: 26px 0; padding: 0; list-style: none; }
.sing-lyrics li { padding: 13px 18px; border-left: 5px solid transparent; border-radius: 10px; background: #f6f9ff; font-size: clamp(17px, 2vw, 21px); font-weight: 700; transition: background .2s, border-color .2s; }
.sing-lyrics li.is-singing { border-color: #ef9f44; background: #fff2d9; }
.sing-player { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; padding: 18px; border-radius: 18px; background: #e8f1ff; }
.sing-player label { font-weight: 800; }
.sing-player select { min-height: 44px; padding: 7px 12px; border: 1px solid #abbbe2; border-radius: 11px; background: #fff; color: #173b36; font: inherit; }
.sing-player audio { flex: 1 1 100%; width: 100%; }
.sing-status { flex: 1 1 100%; margin: 2px 0 0; font-size: 14px; }
.sing-coach { margin-top: 30px; }
.sing-coach h2, .sing-related h2 { margin: 0 0 12px; font-family: var(--display); font-size: 26px; }
.sing-coach p { line-height: 1.65; }
.sing-related ul { display: grid; gap: 15px; margin: 0 0 25px; padding-left: 20px; }
.sing-related li a { font-weight: 700; }
@media (max-width: 960px) { .sing-grid, .sing-step-grid { grid-template-columns: repeat(2, 1fr); } .sing-detail { grid-template-columns: 1fr; } }
@media (max-width: 680px) { .sing-grid, .sing-step-grid { grid-template-columns: 1fr; } .sing-player .btn { flex: 1 1 100%; } }