/* ============================================================
   Devenir — Music Page v2 (Dual Column: Spotify Yearly + Apple Music Monthly)
   契约：themes/devenir/MUSIC_PAGE_GUIDE.md
   颜色引用 base.html Devenir 变量；--music-accent 派生自 --glitch-c
   （= Board.glitch_color，music 种子为 #b794f4 紫），不重新定义无关色值。
   ============================================================ */

.music-hero,
.music-page {
    /* 强调色全部派生自 --glitch-c（= Board.glitch_color，由模板注入），
       不再写死绿色；color-mix 按透明度派生变体，随板块颜色自动变化 */
    --music-accent: var(--glitch-c);
    --music-accent-soft: color-mix(in srgb, var(--glitch-c) 55%, transparent);
    --music-accent-faint: color-mix(in srgb, var(--glitch-c) 10%, transparent);
    --music-accent-deep: color-mix(in srgb, var(--glitch-c) 25%, transparent);
    --music-bg: var(--bg-primary);
    --music-surface: var(--bg-elevated);
    --music-surface-soft: var(--bg-secondary);
    --music-text: var(--text-primary);
    --music-text-muted: var(--text-secondary);
    --music-text-dark: var(--text-tertiary);
    --music-border: var(--fragment-border);
    --music-grid: color-mix(in srgb, var(--glitch-c) 6%, transparent);
    --music-radius: 2px;
    color: var(--music-text);
}

/* ============ Hero ============ */
.music-hero {
    position: relative;
    min-height: clamp(620px, 86svh, 760px);
    padding: 7rem 0 4rem;
    overflow: hidden;
    border-bottom: 1px solid var(--music-border);
    background:
        radial-gradient(ellipse at 70% 40%, var(--music-accent-faint) 0%, transparent 55%),
        linear-gradient(180deg, color-mix(in srgb, var(--glitch-c) 3%, transparent) 0%, transparent 40%),
        var(--music-bg);
}
.music-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        repeating-linear-gradient(0deg, transparent, transparent 3px, var(--music-grid) 3px, var(--music-grid) 4px),
        repeating-linear-gradient(90deg, transparent, transparent 3px, var(--music-grid) 3px, var(--music-grid) 4px);
    opacity: 0.4;
    pointer-events: none;
}
.music-hero__grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1.25fr 1fr;
    gap: 3rem;
    align-items: center;
}
.music-hero__intro { grid-column: 1; }
.music-title {
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: clamp(2.75rem, 6.5vw, 5.25rem);
    letter-spacing: -0.02em;
    line-height: 1;
    display: flex;
    align-items: baseline;
    gap: 0.18em;
}
.music-title__num { color: var(--music-accent); }
.music-title__slash { color: var(--music-text-dark); font-weight: 400; }
.music-title__word { color: var(--music-text); }
.music-subtitle {
    margin-top: 1rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.38em;
    color: var(--music-accent);
}
.music-tagline {
    margin-top: 2.5rem;
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.05em;
    line-height: 2;
    color: var(--music-text);
}
.music-source {
    margin-top: 2.5rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    color: var(--music-text-muted);
    display: grid;
    gap: 0.4rem;
}
.music-source__row { display: flex; gap: 1rem; }
.music-source__row dt { color: var(--music-text-dark); min-width: 8rem; }
.music-source__row dd { color: var(--music-text-muted); }

.music-hero__visual {
    position: absolute;
    z-index: 0;
    inset: 0;
    overflow: hidden;
    background: var(--music-surface-soft);
    pointer-events: none;
}
.music-hero__visual::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg,
            color-mix(in srgb, var(--music-bg) 94%, transparent) 0%,
            color-mix(in srgb, var(--music-bg) 62%, transparent) 28%,
            transparent 43%,
            transparent 65%,
            color-mix(in srgb, var(--music-bg) 72%, transparent) 82%,
            color-mix(in srgb, var(--music-bg) 94%, transparent) 100%),
        linear-gradient(180deg,
            color-mix(in srgb, var(--music-bg) 24%, transparent),
            transparent 40%,
            color-mix(in srgb, var(--music-bg) 48%, transparent));
    box-shadow: inset 0 0 88px color-mix(in srgb, var(--music-bg) 38%, transparent);
    pointer-events: none;
}
.music-hero__art {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    object-position: center 38%;
    filter: saturate(0.82) contrast(1.05) brightness(0.64);
}

.music-hero .music-hero__period {
    grid-column: 3;
    align-self: start;
    background: color-mix(in srgb, var(--music-surface) 76%, transparent);
    -webkit-backdrop-filter: blur(16px) saturate(0.84);
    backdrop-filter: blur(16px) saturate(0.84);
    box-shadow: 0 18px 54px color-mix(in srgb, #000 34%, transparent);
}

/* ============ Card Component ============ */
.music-card {
    border: 1px solid var(--music-border);
    background: var(--music-surface);
    padding: 1.5rem;
    border-radius: var(--music-radius);
    transition: border-color 0.3s, box-shadow 0.3s;
}
.music-card:hover {
    border-color: var(--music-accent-deep);
    box-shadow: 0 0 30px color-mix(in srgb, var(--glitch-c) 6%, transparent);
}
.music-card__head {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    padding-bottom: 0.75rem;
    margin-bottom: 1.25rem;
    border-bottom: 1px solid var(--music-border);
}
.music-card__num {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--music-text-dark);
    letter-spacing: 0.1em;
}
.music-card__title {
    font-family: var(--font-sans);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--music-text);
    flex: 1;
}
.music-card__hint {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.14em;
    color: var(--music-text-dark);
    text-transform: uppercase;
}

/* ============ Current Period Card ============ */
.music-period__sub {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.14em;
    color: var(--music-accent);
    margin-bottom: 1.25rem;
}
.music-period__artists {
    list-style: none;
    display: grid;
    gap: 0.9rem;
}
.music-period__artist {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}
.music-period__artist-info { min-width: 0; }
.music-period__artist-name {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--music-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.music-period__artist-tag {
    font-family: var(--font-mono);
    font-size: 0.58rem;
    letter-spacing: 0.08em;
    color: var(--music-text-muted);
    margin-top: 0.15rem;
}

/* ============ Thumbnail Placeholder ============ */
.music-thumb {
    flex: 0 0 44px;
    width: 44px;
    height: 44px;
    border-radius: var(--music-radius);
    background:
        radial-gradient(circle at 30% 30%, var(--music-accent-deep), transparent 70%),
        var(--music-surface-soft);
    border: 1px solid var(--music-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--music-accent);
    letter-spacing: 0.05em;
}
.music-thumb--wide { flex: 0 0 52px; width: 52px; height: 52px; font-size: 0.85rem; }
.music-thumb--xl { flex: 0 0 72px; width: 72px; height: 72px; font-size: 1.1rem; }

/* ============ Dashboard ============ */
.music-page {
    padding: 3rem 0 0;
}
.music-dashboard {
    display: grid;
    grid-template-columns: minmax(0, 1.16fr) minmax(0, 0.84fr);
    gap: 2rem;
    align-items: start;
}
.music-col {
    display: grid;
    gap: 2rem;
    min-width: 0; /* grid item 防溢出：内容 min-content 不撑破轨道 */
}
.music-col > .music-card { min-width: 0; }
.music-card__head > .music-card__title { min-width: 0; }
.music-annual-rankings {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    min-width: 0;
}
.music-annual-rankings > .music-card {
    min-width: 0;
    border-radius: 0;
}
.music-annual-rankings > .music-card + .music-card {
    border-left: 0;
}
.music-current__tracks {
    margin-top: 1.75rem;
    padding-top: 0.25rem;
    border-top: 1px solid var(--music-border);
}
.music-card__head--subsection { margin-top: 1.25rem; }

/* ============ Yearly Overview ============ */
.music-yearly__main {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
    gap: 1.5rem;
    align-items: start;
}
.music-yearly__figures,
.music-yearly__coverage { min-width: 0; }
.music-yearly__year {
    font-family: var(--font-sans);
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 700;
    line-height: 1;
    color: var(--music-accent);
    letter-spacing: -0.04em;
}
.music-yearly__total {
    font-family: var(--font-mono);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--music-text);
    margin-top: 0.5rem;
}
.music-yearly__total span {
    font-size: 0.75rem;
    color: var(--music-text-muted);
    letter-spacing: 0.1em;
    margin-left: 0.25rem;
}
.music-yearly__core {
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--music-border);
}
.music-yearly__core-title {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.18em;
    color: var(--music-text-dark);
    margin-bottom: 0.75rem;
}
.music-yearly__core-list {
    list-style: none;
    display: grid;
    gap: 0.45rem;
}
.music-yearly__core-list li {
    font-size: 0.78rem;
    color: var(--music-text-muted);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.music-rank {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--music-text-dark);
    min-width: 1.2rem;
}
.music-yearly__coverage {
    display: grid;
    align-content: start;
    gap: 0.8rem;
    padding: 1rem;
    border: 1px solid var(--music-border);
    background: color-mix(in srgb, var(--glitch-c) 3%, transparent);
}
.music-yearly__coverage-title {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.14em;
    color: var(--music-text-dark);
}
.music-yearly__coverage-share {
    font-family: var(--font-sans);
    font-size: clamp(2.2rem, 4vw, 3.4rem);
    font-weight: 700;
    line-height: 1;
    color: var(--music-accent);
}
.music-yearly__coverage-share span {
    margin-left: 0.2rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--music-text-muted);
}
.music-yearly__coverage-track {
    height: 5px;
    overflow: hidden;
    background: color-mix(in srgb, var(--glitch-c) 9%, transparent);
}
.music-yearly__coverage-track span {
    display: block;
    width: calc(var(--coverage) * 1%);
    height: 100%;
    background: var(--music-accent);
}
.music-yearly__coverage-stats {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
    padding-top: 0.2rem;
}
.music-yearly__coverage-stats div { min-width: 0; }
.music-yearly__coverage-stats dt {
    font-family: var(--font-mono);
    font-size: 0.54rem;
    letter-spacing: 0.12em;
    color: var(--music-text-dark);
}
.music-yearly__coverage-stats dd {
    margin-top: 0.25rem;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--music-text-muted);
}
.music-yearly__tags {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    color: var(--music-accent);
}

/* ============ Monthly Traces ============ */
.music-monthly__chart {
    margin-bottom: 1.5rem;
}
.music-monthly__bars {
    list-style: none;
    display: grid;
    gap: 0.6rem;
}
.music-monthly__bars li {
    display: grid;
    grid-template-columns: 2.5rem 1fr 5.5rem;
    align-items: center;
    gap: 0.75rem;
}
.music-monthly__month {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--music-text-dark);
    letter-spacing: 0.05em;
}
.music-monthly__bar {
    position: relative;
    height: 8px;
    background: color-mix(in srgb, var(--glitch-c) 8%, transparent);
    border-radius: 1px;
    overflow: hidden;
}
.music-monthly__fill {
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: calc(var(--pct) * 1%);
    background: var(--music-accent-soft);
    border-radius: 1px;
    transition: width 0.8s ease;
}
.music-monthly__bars li.is-current .music-monthly__month { color: var(--music-accent); }
.music-monthly__bars li.is-current .music-monthly__fill { background: var(--music-accent); }
.music-monthly__min {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--music-text-muted);
    text-align: right;
}
.music-monthly__current {
    border-top: 1px solid var(--music-border);
    padding-top: 1.25rem;
}
.music-monthly__current-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 0.75rem;
}
.music-monthly__current-month {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--music-accent);
}
.music-monthly__current-min {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--music-text);
}
.music-monthly__current-title {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.18em;
    color: var(--music-text-dark);
    margin-bottom: 0.75rem;
}
.music-monthly__current-artists {
    list-style: none;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}
.music-monthly__current-artists li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.music-monthly__artist-name {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--music-text-muted);
    letter-spacing: 0.02em;
}

/* ============ Cross-Scale Relations ============ */
.music-cross__list {
    list-style: none;
    display: grid;
    gap: 1rem;
}
.music-cross__item {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--music-border);
}
.music-cross__item:last-child { border-bottom: none; }
.music-cross__name {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--music-text);
    margin-bottom: 0.35rem;
}
.music-cross__scales {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}
.music-cross__scale {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    letter-spacing: 0.08em;
    color: var(--music-text-muted);
}
.music-cross__scale strong { color: var(--music-accent); font-weight: 700; }
.music-spark {
    width: 80px;
    height: 24px;
}
.music-spark polyline {
    fill: none;
    stroke: var(--music-accent-soft);
    stroke-width: 1.5;
    vector-effect: non-scaling-stroke;
}
.music-spark--rise polyline { stroke: var(--music-accent); }

/* ============ Companion / Gravity ============ */
.music-companion__body {
    display: flex;
    gap: 1rem;
    align-items: center;
}
.music-companion__info { min-width: 0; }
.music-companion__name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--music-text);
    margin-bottom: 0.25rem;
}
.music-companion__since {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.1em;
    color: var(--music-text-dark);
    margin-bottom: 0.25rem;
}
.music-companion__stat {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--music-accent);
    margin-bottom: 0.5rem;
}
.music-companion__note {
    font-size: 0.78rem;
    line-height: 1.5;
    color: var(--music-text-muted);
    font-style: italic;
}

/* ============ Archive Lists ============ */
.music-archive__list {
    list-style: none;
    display: grid;
    gap: 0;
}
.music-archive__row {
    display: grid;
    grid-template-columns: 4rem 7rem 1fr auto;
    align-items: center;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--music-border);
    font-family: var(--font-mono);
}
.music-archive__row:last-child { border-bottom: none; padding-bottom: 0; }
.music-archive__row:first-child { padding-top: 0; }
.music-archive__row--empty { color: var(--muted, #6b7280); font-style: italic; }
.music-archive__label {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--music-accent);
}
.music-archive__value {
    font-size: 0.72rem;
    color: var(--music-text);
    letter-spacing: 0.02em;
}
.music-archive__tags {
    font-size: 0.65rem;
    letter-spacing: 0.08em;
    color: var(--music-text-muted);
}
.music-archive__link {
    /* button 元素重置（原为 a[href="#"]，契约禁止占位链接） */
    background: transparent;
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.08em;
    color: var(--music-text-muted);
    text-decoration: none;
    white-space: nowrap;
    transition: color 0.2s, transform 0.2s, border-color 0.2s;
    border: 1px solid var(--music-border);
    padding: 0.4rem 0.75rem;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    border-radius: var(--music-radius);
}
.music-archive__link:hover,
.music-archive__link:focus-visible {
    color: var(--music-accent);
    border-color: var(--music-accent-soft);
    transform: translateX(3px);
    outline: none;
}
.music-archive__note {
    grid-column: 1 / -1;
    font-size: 0.68rem;
    color: var(--music-text-dark);
    letter-spacing: 0.04em;
    padding-top: 0.5rem;
}

/* ============ 空态行（quiet empty state） ============ */
.music-empty-line {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    color: var(--music-text-dark);
    padding: 0.5rem 0;
}

/* ============ 封面缩略（img 版与字体回退共用占位尺寸） ============ */
.music-thumb--img {
    object-fit: cover;
    display: block;
}
.music-thumb--sm { flex-basis: 36px; width: 36px; height: 36px; font-size: 0.62rem; }

/* ============ Yearly 次级指标 ============ */
.music-yearly__stats {
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--music-border);
    display: flex;
    gap: 2rem;
    font-family: var(--font-mono);
}
.music-yearly__stats div { display: grid; gap: 0.2rem; }
.music-yearly__stats dt {
    font-size: 0.58rem;
    letter-spacing: 0.18em;
    color: var(--music-text-dark);
}
.music-yearly__stats dd {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--music-text);
}

/* ============ 行列表（Top Artists / Top Tracks） ============ */
.music-rows {
    list-style: none;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
}
.music-row {
    display: flex;
    min-width: 0;
    align-items: center;
    gap: 0.9rem;
    padding: 0.7rem 0;
    border-bottom: 1px solid var(--music-border);
}
.music-row:last-child { border-bottom: none; padding-bottom: 0; }
.music-row:first-child { padding-top: 0; }
.music-row__rank {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--music-accent);
    min-width: 1.6rem;
    letter-spacing: 0.05em;
}
.music-row__main { min-width: 0; flex: 1; }
.music-row__name {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--music-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.music-row__sub {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.08em;
    color: var(--music-text-muted);
    margin-top: 0.2rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.music-row__link {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 1px solid var(--music-border);
    border-radius: var(--music-radius);
    color: var(--music-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s, border-color 0.2s, transform 0.2s;
}
.music-row__link:hover,
.music-row__link:focus-visible {
    color: var(--music-accent);
    border-color: var(--music-accent-soft);
    transform: translateX(2px);
    outline: none;
}

/* ============ 月份条（Month Index） ============ */
.music-chips {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}
.music-chip {
    display: grid;
    gap: 0.25rem;
    padding: 0.65rem 0.9rem;
    border: 1px solid var(--music-border);
    border-radius: var(--music-radius);
    background: var(--music-surface-soft);
    min-width: 5.4rem;
    transition: border-color 0.25s, box-shadow 0.25s;
}
.music-chip__label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--music-text-muted);
}
.music-chip__min {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    letter-spacing: 0.06em;
    color: var(--music-text-dark);
}
.music-chip.is-current {
    border-color: var(--music-accent-soft);
    box-shadow: 0 0 18px color-mix(in srgb, var(--glitch-c) 10%, transparent);
}
.music-chip.is-current .music-chip__label { color: var(--music-accent); }
.music-chip.is-current .music-chip__min { color: var(--music-text-muted); }

/* ============ Current Month 层级（参考 Apple 月度信息层级，Devenir 化） ============ */
.music-current__figure {
    display: flex;
    align-items: baseline;
    gap: 0.9rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}
.music-current__minutes {
    font-family: var(--font-sans);
    font-size: clamp(2.6rem, 5.5vw, 4.2rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.03em;
    color: var(--music-accent);
}
.music-current__unit {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.16em;
    color: var(--music-text-muted);
}
.music-current__section-label {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.18em;
    color: var(--music-text-dark);
    margin-bottom: 0.9rem;
}

/* ============ 艺人大卡（Top 5 · 月度） ============ */
.music-artcards {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0.9rem;
}
.music-artcard {
    position: relative;
    min-width: 0;
    border: 1px solid var(--music-border);
    border-radius: var(--music-radius);
    background: var(--music-surface-soft);
    padding: 0.65rem;
    display: grid;
    gap: 0.7rem;
    align-content: start;
    transition: border-color 0.25s, box-shadow 0.25s;
}
.music-artcard__body { min-width: 0; }
.music-artcard:hover {
    border-color: var(--music-accent-deep);
    box-shadow: 0 0 24px color-mix(in srgb, var(--glitch-c) 8%, transparent);
}
.music-artcard__rank {
    position: absolute;
    top: 0.55rem;
    left: 0.7rem;
    z-index: 2;
    font-family: var(--font-sans);
    font-size: 1.55rem;
    font-weight: 700;
    line-height: 1;
    color: var(--music-accent);
    text-shadow: 0 0 14px color-mix(in srgb, var(--glitch-c) 35%, transparent);
}
.music-artcard__cover,
.music-artcard__fallback {
    width: 100%;
    aspect-ratio: 1;
    border-radius: var(--music-radius);
    border: 1px solid var(--music-border);
    display: block;
}
.music-artcard__cover { object-fit: cover; }
.music-artcard__fallback {
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(circle at 30% 30%, var(--music-accent-deep), transparent 70%),
        var(--music-surface);
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--music-accent);
}
.music-artcard__name {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--music-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.music-artcard__min {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    letter-spacing: 0.06em;
    color: var(--music-text-muted);
    margin-top: 0.25rem;
}
.music-artcard__link {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border: 1px solid var(--music-border);
    border-radius: var(--music-radius);
    background: color-mix(in srgb, var(--music-bg) 72%, transparent);
    color: var(--music-text-muted);
    text-decoration: none;
    font-size: 0.75rem;
    transition: color 0.2s, border-color 0.2s;
}
.music-artcard__link:hover,
.music-artcard__link:focus-visible {
    color: var(--music-accent);
    border-color: var(--music-accent-soft);
    outline: none;
}

/* ============ 曲目密排（Top 15 · 月度） ============ */
.music-trackgrid {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.4rem 1.2rem;
}
.music-trackcell {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--music-border);
    min-width: 0;
}
.music-trackcell__main { min-width: 0; flex: 1; }
.music-trackcell__title {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--music-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.music-trackcell__title .music-row__rank { min-width: 0; margin-right: 0.35rem; }
.music-trackcell__sub {
    font-family: var(--font-mono);
    font-size: 0.58rem;
    letter-spacing: 0.06em;
    color: var(--music-text-muted);
    margin-top: 0.15rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.music-trackcell .music-row__link { width: 34px; height: 34px; font-size: 0.72rem; }

/* ============ Responsive ============ */
@media (max-width: 1399px) {
    .music-artcards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .music-annual-rankings { grid-template-columns: minmax(0, 1fr); }
    .music-annual-rankings > .music-card + .music-card {
        border-left: 1px solid var(--music-border);
        border-top: 0;
    }
}
@media (max-width: 1199px) {
    .music-hero__grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
    .music-hero__intro { order: 1; }
    .music-hero__period { grid-column: 2; order: 2; }
    .music-yearly__main { grid-template-columns: minmax(0, 1fr); }
    .music-dashboard { gap: 1.5rem; }
    .music-col { gap: 1.5rem; }
    .music-artcards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .music-trackgrid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
    .music-dashboard { grid-template-columns: minmax(0, 1fr); }
    .music-archive__row { grid-template-columns: 4rem 1fr auto; gap: 0.75rem; }
    .music-archive__tags { grid-column: 2 / 3; grid-row: 2; }
    .music-artcards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 768px) {
    .music-hero { min-height: 760px; padding: 6rem 0 2.5rem; }
    .music-hero__grid { grid-template-columns: 1fr; }
    .music-hero__period { grid-column: 1; margin-top: 2rem; }
    .music-hero__art { object-position: 66% center; opacity: 0.72; }
    .music-hero__visual::after {
        background: linear-gradient(180deg,
            color-mix(in srgb, var(--music-bg) 84%, transparent) 0%,
            color-mix(in srgb, var(--music-bg) 54%, transparent) 45%,
            color-mix(in srgb, var(--music-bg) 92%, transparent) 100%);
    }
    .music-card { padding: 1.25rem; }
    .music-card__head { flex-wrap: wrap; gap: 0.5rem; }
    .music-card__hint { margin-left: auto; }
    .music-yearly__year { font-size: 3.5rem; }
    .music-yearly__total { font-size: 1.25rem; }
    .music-cross__item { grid-template-columns: auto 1fr; }
    .music-spark { display: none; }
    .music-companion__body { align-items: flex-start; }
    .music-archive__row {
        grid-template-columns: 1fr auto;
        grid-template-areas:
            "label link"
            "tags tags"
            "value value";
        gap: 0.6rem;
    }
    .music-archive__label { grid-area: label; }
    .music-archive__value { grid-area: value; }
    .music-archive__tags { grid-area: tags; }
    .music-archive__link { grid-area: link; }
    .music-archive__note { grid-column: 1 / -1; }
    .music-monthly__bars li { grid-template-columns: 2.5rem 1fr 5rem; gap: 0.5rem; }
    .music-monthly__current-artists { gap: 0.75rem; }
    .music-trackgrid { grid-template-columns: 1fr; }
    .music-current__minutes { font-size: 2.6rem; }
}
@media (max-width: 480px) {
    .music-card__hint { width: 100%; margin-left: 0; }
    .music-hero__period { padding: 1.25rem; }
    .music-period__artist-name { font-size: 0.78rem; }
    .music-monthly__bars li { grid-template-columns: 2.5rem 1fr 4.5rem; }
    .music-monthly__min { font-size: 0.58rem; }
    .music-monthly__current-artists li { flex-direction: column; align-items: flex-start; gap: 0.25rem; }
    .music-artcards { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.6rem; }
    .music-artcard__rank { font-size: 1.5rem; }
    .music-chips { gap: 0.45rem; }
    .music-chip { min-width: calc(50% - 0.45rem); padding: 0.55rem 0.7rem; }
    .music-row__sub { white-space: normal; }
}

/* ============ Reduced motion ============ */
@media (prefers-reduced-motion: reduce) {
    .music-card,
    .music-archive__link,
    .music-row__link,
    .music-artcard,
    .music-artcard__link,
    .music-chip,
    .music-monthly__fill { transition: none; }
    .music-archive__link:hover,
    .music-archive__link:focus-visible,
    .music-row__link:hover,
    .music-row__link:focus-visible { transform: none; }
}