/* ============================================================
   极简网络音乐 — music.css
   参考 music.163.com 交互理念，界面极简、不依赖图片；
   复用全站 CSS 变量以适配暗/亮主题。
   布局：顶栏 / 歌单·歌曲·歌词三栏 / 底部固定播放器 / 弹窗。
   ============================================================ */

body.page-music-full .app,
body.page-music-full .main-content,
body.page-music-full .page-container { max-width: 100%; }
body.page-music-full .app { padding: 0; }

.music-page {
    max-width: 1280px;
    margin: 0 auto;
    padding: 20px 22px 150px;
    color: var(--text-primary);
}

/* ===================== 顶栏 ===================== */
.music-head { display: flex; align-items: center; gap: 18px; margin-bottom: 18px; flex-wrap: wrap; }
.music-brand { display: flex; align-items: center; gap: 10px; }
.music-logo { font-size: 30px; line-height: 1; }
.music-brand-text strong { display: block; font-size: 20px; font-weight: 800; line-height: 1.1; }
.music-brand-text small { font-size: 12px; color: var(--text-secondary); }
.music-tabs { display: flex; gap: 6px; margin-left: 8px; }
.mt-tab {
    font-size: 14px; padding: 8px 14px; border: 1px solid var(--border-color);
    border-radius: 999px; background: var(--bg-secondary); color: var(--text-primary); cursor: pointer; transition: .15s;
}
.mt-tab.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.music-btn {
    font-size: 13.5px; padding: 8px 14px; border: 1px solid var(--border-color); border-radius: 9px;
    background: var(--bg-secondary); color: var(--text-primary); cursor: pointer; transition: .15s; white-space: nowrap;
}
.music-btn:hover { border-color: var(--accent); }
.music-btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.music-btn-primary:hover { opacity: .92; }
.music-btn-danger:hover { border-color: #ef4444; color: #ef4444; }
.music-head .music-btn-primary { margin-left: auto; }
/* 侧边导航开关：简洁图标按钮，随时调出 / 收起导航 */
.music-side-toggle {
    font-size: 18px; line-height: 1; width: 38px; height: 38px; flex: 0 0 auto;
    display: inline-flex; align-items: center; justify-content: center;
    border: 1px solid var(--border-color); border-radius: 9px;
    background: var(--bg-secondary); color: var(--text-primary); cursor: pointer; transition: .15s;
}
.music-side-toggle:hover { border-color: var(--accent); color: var(--accent); }

.music-login-tip {
    background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 12px;
    padding: 26px; text-align: center; color: var(--text-secondary); font-size: 14px;
}
.music-login-tip a { color: var(--accent); font-weight: 600; }

/* ===================== 主体三栏 ===================== */
.music-main { display: grid; grid-template-columns: 280px 1fr; gap: 18px; align-items: start; }
.music-main.lyric-on { grid-template-columns: 260px 1fr 320px; }

/* 歌单列表 */
.music-side { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 12px; padding: 12px; }
.music-side-head { display: flex; align-items: center; justify-content: space-between; font-size: 13px; color: var(--text-secondary); padding: 4px 6px 10px; }
.music-side-add { width: 24px; height: 24px; border-radius: 6px; border: 1px solid var(--border-color); background: var(--bg-primary); color: var(--text-primary); cursor: pointer; line-height: 1; }
.music-side-add:hover { border-color: var(--accent); color: var(--accent); }
.music-pl-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.music-pl-item { padding: 10px 12px; border-radius: 9px; cursor: pointer; border: 1px solid transparent; transition: .15s; }
.music-pl-item:hover { background: var(--bg-hover); }
.music-pl-item.active { background: color-mix(in srgb, var(--accent) 12%, transparent); border-color: color-mix(in srgb, var(--accent) 40%, transparent); }
.music-pl-item .mpl-title { font-size: 14px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.music-pl-item .mpl-sub { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.music-pl-item .mpl-meta { font-size: 12px; color: var(--text-secondary); margin-top: 3px; display: flex; align-items: center; gap: 6px; }
.music-pl-item .mpl-owner { font-weight: 600; color: var(--text-primary); }
.music-pl-item .mpl-dot { opacity: .6; }
.music-pl-item .mpl-time { color: var(--text-secondary); }

/* 「最近播放」入口（置顶于歌单列表） */
.music-pl-recent { padding-left: 38px; }
.music-pl-recent .mpl-ico { position: absolute; left: 12px; top: 12px; font-size: 16px; line-height: 1; }
.music-pl-recent.active { background: color-mix(in srgb, var(--accent) 12%, transparent); border-color: color-mix(in srgb, var(--accent) 40%, transparent); }
.music-pl-recent .mpl-title { font-weight: 600; }

/* 最近播放模式：隐藏歌单「...」菜单与拖拽手柄，显示清空按钮 */
.music-content.is-recent .mch-menu-right { display: none; }
.music-content.is-recent .mt-grip { display: none; }
#musicClearRecent { display: none; }
.music-content.is-recent #musicClearRecent { display: inline-block; }

/* 歌曲列表 */
.music-content { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 12px; padding: 14px 16px; min-height: 420px; }
.music-content-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.music-pl-meta { display: flex; align-items: baseline; gap: 8px; min-width: 0; }
.music-pl-meta h2 { margin: 0; font-size: 18px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.music-pl-count { font-size: 12.5px; color: var(--text-secondary); }
.music-content-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.music-track-list { list-style: none; margin: 0; padding: 0; }
.music-track-item { display: flex; align-items: center; gap: 12px; padding: 10px; border-radius: 9px; cursor: pointer; border-bottom: 1px solid var(--border-color); transition: .12s; }
.music-track-item:last-child { border-bottom: none; }
.music-track-item:hover { background: var(--bg-hover); }
.music-track-item.playing { background: color-mix(in srgb, var(--accent) 10%, transparent); }
.mt-index { width: 22px; text-align: center; color: var(--text-secondary); font-size: 13px; flex: 0 0 auto; }
.mt-main { flex: 1; min-width: 0; }
.mt-title { font-size: 14px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mt-artist { font-size: 12.5px; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
/* 歌曲「...」功能菜单（x.com 帖子菜单风格） */
.mt-more-wrap { position: relative; flex: 0 0 auto; display: flex; align-items: center; align-self: center; }
.mt-more {
    width: 32px; height: 32px; padding: 0; border: none; background: transparent; border-radius: 999px;
    color: var(--text-secondary); cursor: pointer; display: inline-flex; align-items: center; justify-content: center;
    transition: background .15s, color .15s;
}
.mt-more:hover, .mt-more:focus-visible { background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent); }
.mt-more svg { fill: currentColor; display: block; }
.mt-menu {
    position: absolute; top: calc(100% + 4px); right: 0; z-index: 60; min-width: 134px;
    background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,.18); padding: 5px; display: none;
}
.music-track-item.menu-open .mt-menu,
.mt-more-wrap.menu-open .mt-menu { display: block; }
.mt-menu-item {
    display: block; width: 100%; text-align: left; border: none; background: transparent;
    color: var(--text-primary); font-size: 14px; padding: 9px 12px; border-radius: 8px; cursor: pointer;
}
.mt-menu-item:hover { background: var(--bg-hover); }
.mt-menu-del { color: #ef4444; }
.mt-menu-del:hover { background: rgba(239,68,68,.12); }
.mt-menu-sep { height: 1px; margin: 5px 4px; background: var(--border-color); }
/* 合并后的歌单「...」菜单靠右显示 */
.mch-menu-right { margin-left: auto; }

/* 折叠：隐藏曲目列表，仅保留歌单标题与操作栏 */
.music-content.collapsed #musicTrackList,
.music-content.collapsed #musicTrackEmpty { display: none; }
.music-content.collapsed { min-height: 0; }
.music-content.collapsed .music-content-head::after {
    content: '（已折叠 ' attr(data-count) '）';
    font-size: 12.5px; color: var(--text-secondary);
}
.music-track-empty, .music-side-empty { text-align: center; color: var(--text-secondary); padding: 30px 10px; font-size: 13.5px; }

/* 歌词面板 */
.music-lyric { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 12px; padding: 14px; max-height: 560px; overflow: hidden; display: flex; flex-direction: column; }
.music-lyric-head { font-size: 13px; color: var(--text-secondary); margin-bottom: 10px; flex: 0 0 auto; }
.music-lyric-inner { flex: 1; overflow: auto; line-height: 2; font-size: 14px; padding-right: 4px; }
.music-lyric-inner p { margin: 0 0 4px; color: var(--text-secondary); transition: color .2s, transform .2s; }
.music-lyric-inner p.active { color: var(--accent); font-weight: 700; transform: scale(1.02); transform-origin: left; }
.music-lyric-tip { color: var(--text-secondary); }

/* ===================== 底部播放器 ===================== */
.music-player {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 99998;
    display: grid; grid-template-columns: 220px 160px 1fr 140px; gap: 16px; align-items: center;
    grid-template-areas:
        "lyric lyric lyric lyric"
        "now controls progress volume";
    padding: 12px 22px; background: color-mix(in srgb, var(--bg-secondary) 92%, transparent);
    backdrop-filter: blur(12px); border-top: 1px solid var(--border-color);
}
/* 播放器内置歌词 */
.mp-lyric { grid-area: lyric; display: none; height: 200px; overflow: hidden; }
.music-player.mp-lyric-on .mp-lyric { display: flex; flex-direction: column; }
/* 歌词框高度调整手柄 */
.mp-lyric-resizer {
    flex: 0 0 12px; height: 12px; cursor: ns-resize; position: relative;
    display: flex; align-items: center; justify-content: center; touch-action: none;
}
.mp-lyric-resizer::before {
    content: ""; width: 40px; height: 4px; border-radius: 2px;
    background: var(--border-color); transition: background .15s;
}
.mp-lyric-resizer:hover::before, .mp-lyric-resizer.dragging::before { background: var(--accent); }
.mp-lyric-inner {
    flex: 1 1 auto; min-height: 0; height: auto; overflow: auto; line-height: 2; font-size: 14px; padding: 2px 4px;
    -webkit-mask-image: linear-gradient(transparent, #000 16%, #000 84%, transparent);
    mask-image: linear-gradient(transparent, #000 16%, #000 84%, transparent);
}
.mp-lyric-inner p { margin: 0 0 4px; color: var(--text-secondary); transition: color .2s, transform .2s; cursor: pointer; }
.mp-lyric-inner p.active { color: var(--accent); font-weight: 700; transform: scale(1.02); transform-origin: left; }
.mp-lyric-tip { color: var(--text-secondary); }
.mp-now { grid-area: now; min-width: 0; }
.mp-title { font-size: 14px; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mp-artist { font-size: 12px; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mp-controls { display: flex; align-items: center; justify-content: center; gap: 10px; }
.mp-btn { font-size: 16px; width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--border-color); background: var(--bg-primary); color: var(--text-primary); cursor: pointer; transition: .15s; }
.mp-btn:hover { border-color: var(--accent); color: var(--accent); }
.mp-play { background: var(--accent); border-color: var(--accent); color: #fff; }
.mp-progress { display: flex; align-items: center; gap: 10px; }
.mp-time { font-size: 12px; color: var(--text-secondary); min-width: 34px; text-align: center; }
.mp-seek, .mp-vol { width: 100%; accent-color: var(--accent); }
.mp-volume { display: flex; align-items: center; gap: 8px; }

/* ===================== 弹窗 ===================== */
.music-modal { position: fixed; inset: 0; z-index: 100000; display: flex; align-items: center; justify-content: center; padding: 16px; }
.music-modal[hidden] { display: none; }
.music-modal-mask { position: absolute; inset: 0; background: rgba(0,0,0,.5); backdrop-filter: blur(2px); }
.music-modal-box { position: relative; width: 100%; max-width: 480px; max-height: 90vh; overflow: auto; background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 16px; box-shadow: 0 20px 60px rgba(0,0,0,.35); }
.music-modal-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--border-color); }
.music-modal-head h3 { margin: 0; font-size: 17px; }
.music-modal-close { background: none; border: none; font-size: 18px; color: var(--text-secondary); cursor: pointer; }
.music-modal-close:hover { color: var(--accent); }
.music-form { padding: 18px 20px 20px; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.music-field { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--text-secondary); }
.music-field-full { grid-column: 1 / -1; }
.music-input { font-size: 14px; padding: 9px 12px; border: 1px solid var(--border-color); border-radius: 9px; background: var(--bg-primary); color: var(--text-primary); outline: none; width: 100%; box-sizing: border-box; }
.music-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 16%, transparent); }
.music-textarea { resize: vertical; min-height: 90px; font-family: inherit; }
.music-form-actions { grid-column: 1 / -1; display: flex; gap: 10px; justify-content: flex-end; }

/* 导入 / 导出 */
.music-io { padding: 18px 20px 22px; display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.music-io-block h4 { margin: 0 0 6px; font-size: 15px; }
.music-io-tip { font-size: 12.5px; color: var(--text-secondary); margin: 0 0 10px; line-height: 1.6; }
.music-io-msg { font-size: 12.5px; margin: 8px 0 0; }
.music-io-msg.ok { color: #22c55e; }
.music-io-msg.err { color: #ef4444; }

/* ===================== 歌单广场 ===================== */
.music-main[hidden], .music-plaza[hidden] { display: none; }
.music-plaza { display: block; }
.music-plaza-head { margin-bottom: 14px; }
.music-plaza-head h2 { margin: 0 0 4px; font-size: 20px; font-weight: 800; }
.music-plaza-sub { margin: 0; font-size: 13px; color: var(--text-secondary); }
.music-plaza-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.plaza-item { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 12px; padding: 14px; cursor: pointer; transition: .15s; display: flex; flex-direction: column; gap: 8px; }
.plaza-item:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,.12); }
.plaza-item.is-guest { border-color: color-mix(in srgb, var(--accent) 35%, var(--border-color)); }
.plaza-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 8px; }
.plaza-title { font-size: 15px; font-weight: 700; line-height: 1.3; }
.plaza-desc { font-size: 12.5px; color: var(--text-secondary); line-height: 1.5; min-height: 18px; }
.plaza-meta { display: flex; align-items: center; gap: 10px; font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.plaza-owner { background: color-mix(in srgb, var(--accent) 14%, transparent); color: var(--accent); padding: 1px 7px; border-radius: 999px; font-weight: 600; }
.plaza-owner-name { font-weight: 600; color: var(--text-primary); }
.plaza-time { color: var(--text-secondary); margin-left: auto; }
.plaza-badge { font-size: 11.5px; padding: 2px 8px; border-radius: 999px; white-space: nowrap; flex-shrink: 0; }
.plaza-badge.guest { background: rgba(34,197,94,.14); color: #16a34a; }
.plaza-badge.reg { background: rgba(245,158,11,.16); color: #d97706; }
.music-plaza-empty { text-align: center; color: var(--text-secondary); padding: 40px 20px; font-size: 14px; }
.music-plaza-detail { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 12px; padding: 16px; }
.music-plaza-back { margin-bottom: 12px; }
.music-plaza-detail-head { display: flex; align-items: baseline; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.music-plaza-detail-meta { display: flex; align-items: center; gap: 10px; font-size: 12.5px; color: var(--text-secondary); width: 100%; }
.music-plaza-detail-head h3 { margin: 0; font-size: 18px; }
.music-plaza-detail .music-track-list { max-height: 60vh; overflow: auto; }
.music-plaza-detail .music-track-empty { padding: 20px; text-align: center; color: var(--text-secondary); }

/* 广场列表项操作栏（点赞 / 收藏 / 评论） */
.plaza-acts { display: flex; align-items: center; gap: 8px; margin-top: 8px; }
.plaza-act {
    display: inline-flex; align-items: center; gap: 5px; padding: 4px 10px; border: 1px solid var(--border-color);
    border-radius: 999px; background: var(--bg-primary); color: var(--text-secondary); font-size: 12.5px; cursor: pointer;
    transition: background .15s, color .15s, border-color .15s;
}
.plaza-act:hover { border-color: var(--accent); color: var(--accent); }
.plaza-act .pa-ico { font-size: 13px; line-height: 1; }
.plaza-act.active.like, .plaza-act[data-act="like"].active { color: #ef4444; border-color: #ef4444; background: rgba(239,68,68,.1); }
.plaza-act.active.fav, .plaza-act[data-act="fav"].active { color: #f59e0b; border-color: #f59e0b; background: rgba(245,158,11,.12); }
.plaza-act[data-act="like"].active .pa-ico { content: '♥'; }

/* 广场详情操作栏 */
.plaza-actions { display: flex; align-items: center; gap: 10px; margin: 4px 0 10px; }

/* 评论区 */
.plaza-comments { margin-top: 16px; border-top: 1px solid var(--border-color); padding-top: 14px; }
.plaza-comments-title { margin: 0 0 10px; font-size: 15px; font-weight: 700; }
.plaza-comment-list { display: flex; flex-direction: column; gap: 10px; }
.plaza-comment { position: relative; background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 10px; padding: 9px 11px; }
.plaza-comment .pc-head { display: flex; align-items: baseline; gap: 8px; margin-bottom: 3px; }
.plaza-comment .pc-user { font-weight: 600; font-size: 13px; color: var(--text-primary); }
.plaza-comment .pc-time { font-size: 11.5px; color: var(--text-secondary); }
.plaza-comment .pc-body { font-size: 13.5px; line-height: 1.6; white-space: pre-wrap; word-break: break-word; color: var(--text-primary); }
.plaza-comment .pc-del { position: absolute; top: 8px; right: 8px; border: none; background: transparent; color: var(--text-secondary); font-size: 12px; cursor: pointer; padding: 2px 6px; border-radius: 6px; }
.plaza-comment .pc-del:hover { color: #ef4444; background: rgba(239,68,68,.1); }
.plaza-comment-empty { text-align: center; color: var(--text-secondary); font-size: 13px; padding: 14px 0; }
.plaza-comment-form { display: flex; gap: 8px; margin-top: 12px; align-items: flex-end; }
.plaza-comment-form textarea { flex: 1; resize: vertical; min-height: 40px; max-height: 160px; padding: 8px 10px; border: 1px solid var(--border-color); border-radius: 10px; background: var(--bg-primary); color: var(--text-primary); font: inherit; font-size: 13.5px; }
.plaza-comment-form textarea:focus { outline: none; border-color: var(--accent); }
.plaza-comment-hint { margin-top: 12px; font-size: 13px; color: var(--text-secondary); }
.plaza-comment-hint a { color: var(--accent); }

/* 手机端：操作栏横向铺满，评论输入框纵向 */
@media (max-width: 768px) {
    .plaza-comments { margin-left: -12px; margin-right: -12px; padding-left: 12px; padding-right: 12px; }
    .plaza-comment-form { flex-direction: column; align-items: stretch; }
    .plaza-comment-form .music-btn { width: 100%; }
}
.mpl-vis { margin-top: 4px; }
.mpl-vis-sel { font-size: 12px; padding: 3px 6px; border: 1px solid var(--border-color); border-radius: 7px; background: var(--bg-primary); color: var(--text-primary); max-width: 100%; cursor: pointer; }
.music-pl-item .mpl-vis { opacity: .75; }
.music-pl-item:hover .mpl-vis { opacity: 1; }
.music-pl-item { position: relative; }
/* 歌单「...」菜单（x.com 风格） */
.mpl-more-wrap { position: absolute; top: 8px; right: 8px; z-index: 5; }
.mpl-more {
    width: 30px; height: 30px; padding: 0; border: none; background: transparent; border-radius: 999px;
    color: var(--text-secondary); cursor: pointer; display: inline-flex; align-items: center; justify-content: center;
    transition: background .15s, color .15s;
}
.mpl-more:hover, .mpl-more:focus-visible { background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent); }
.mpl-more svg { fill: currentColor; display: block; }
.mpl-menu {
    position: absolute; top: calc(100% + 4px); right: 0; z-index: 60; min-width: 128px;
    background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,.18); padding: 5px; display: none;
}
.music-pl-item.menu-open .mpl-menu { display: block; }
.mpl-menu-item {
    display: block; width: 100%; text-align: left; border: none; background: transparent;
    color: var(--text-primary); font-size: 14px; padding: 9px 12px; border-radius: 8px; cursor: pointer;
}
.mpl-menu-item:hover { background: var(--bg-hover); }
.mpl-menu-pin { color: var(--accent); }
.mpl-menu-pin:hover { background: color-mix(in srgb, var(--accent) 12%, transparent); }
.mpl-menu-del { color: #ef4444; }
.mpl-menu-del:hover { background: rgba(239,68,68,.12); }
.mpl-pin-ico { margin-right: 4px; }
.music-pl-item.is-pinned .mpl-title { font-weight: 700; }
/* 为右上角「...」菜单预留空间 */
.music-pl-item { padding-right: 42px; }
.music-pl-item .mpl-title { padding-right: 4px; }

/* 播放模式（单曲循环 / 随机） */
.mp-mode { font-size: 18px; min-width: 34px; }
.mp-mode.active { color: var(--accent); border-color: var(--accent); }

/* 网易云导入弹窗 */
.music-netease-tip { margin: 0 0 12px; color: var(--text-secondary); font-size: 13px; line-height: 1.6; }
.music-netease-tip code { background: var(--bg-secondary); padding: 1px 6px; border-radius: 4px; }
.ne-example { margin: 10px 0 0; font-size: 12px; color: var(--text-muted); word-break: break-all; }
@media (max-width: 767px) {
    .music-plaza-list { grid-template-columns: 1fr; }
}

/* ===================== 电脑端：main 界面铺满内容区 ===================== */
@media (min-width: 1025px) {
    html, body { height: 100%; }
    body.page-music-full .main-content { padding: 0; max-width: 100%; }
    .music-page {
        max-width: 100%;
        width: 100%;
        height: 100vh;
        margin: 0;
        padding: 16px 22px 96px;     /* 底部预留固定播放器空间 */
        display: flex;
        flex-direction: column;
        box-sizing: border-box;
        overflow: hidden;
    }
    .music-head { flex: 0 0 auto; margin-bottom: 14px; }
    .music-main { flex: 1 1 auto; min-height: 0; align-items: stretch; height: 100%; }
    .music-plaza { flex: 1 1 auto; min-height: 0; overflow: auto; }
    .music-side { overflow: auto; }                 /* 歌单列表内部滚动 */
    .music-content { min-height: 0; display: flex; flex-direction: column; }
    #musicTrackList { flex: 1 1 auto; overflow: auto; } /* 曲目列表内部滚动 */
    .music-lyric { overflow: auto; }

    /* 点击左上角按钮收起侧边栏，音乐界面即占满整屏 */
    body.music-side-hidden .sidebar { display: none; }
    body.music-side-hidden .main-content { padding: 0; }
}

/* ===================== 平板 ===================== */
@media (max-width: 1024px) {
    .music-page { padding: 18px 16px 160px; }
    .music-main { grid-template-columns: 240px 1fr; }
    .music-main.lyric-on { grid-template-columns: 240px 1fr; }
    .music-lyric { grid-column: 1 / -1; max-height: none; }
    .music-player { grid-template-columns: 160px 150px 1fr 120px; gap: 10px; padding: 10px 14px; }
    .music-io { grid-template-columns: 1fr; }
}
/* ===================== 手机 ===================== */
@media (max-width: 767px) {
    /* 手机端：music-main 与屏幕左右间距归零（整屏铺满），头部等保留内边距以免贴边 */
    .music-page { padding: 14px 0 180px; }
    .music-head { gap: 10px; padding: 0 12px; }
    .music-login-tip { margin-left: 12px; margin-right: 12px; }
    .music-plaza-head { padding: 0 12px; }
    .music-plaza-detail { margin: 0 12px; }
    .music-tabs { order: 3; width: 100%; margin-left: 0; }
    .music-head .music-btn-primary { margin-left: 0; }
    .music-main { grid-template-columns: 1fr; }
    .music-side { order: 2; }
    .music-content { order: 1; }
    .music-lyric { grid-column: auto; }
    .music-player {
        grid-template-columns: 1fr auto;
        grid-template-areas: "lyric lyric" "now controls" "progress progress" "volume volume";
        gap: 8px 12px; padding: 10px 12px;
    }
    .mp-lyric { height: 150px; }
    .mp-now { grid-area: now; }
    .mp-controls { grid-area: controls; }
    .mp-progress { grid-area: progress; }
    .mp-volume { grid-area: volume; }
    .music-form { grid-template-columns: 1fr; }
    .music-track-item .mt-index { display: inline; }
    .music-content-actions .music-btn { flex: 1 1 auto; text-align: center; }
}
@media (max-width: 380px) {
    .music-brand-text small { display: none; }
}

/* ===================== 拖拽排序（鼠标 + 触控） ===================== */
/* 拖拽手柄：统一外观，触控时不触发滚动 */
.mpl-grip, .mt-grip, .mt-tab-grip {
    cursor: grab;
    color: var(--text-secondary);
    opacity: .55;
    user-select: none;
    -webkit-user-select: none;
    touch-action: none;
    transition: color .15s, opacity .15s;
    flex: 0 0 auto;
    line-height: 1;
}
.mpl-grip:hover, .mt-grip:hover, .mt-tab-grip:hover,
.mpl-grip:active, .mt-grip:active, .mt-tab-grip:active { color: var(--accent); opacity: 1; }
.mpl-grip:active, .mt-grip:active, .mt-tab-grip:active { cursor: grabbing; }
/* 手柄在悬停整行时才明显显示，避免视觉噪音 */
.music-pl-item .mpl-grip, .music-track-item .mt-grip { opacity: 0; }
.music-pl-item:hover .mpl-grip, .music-track-item:hover .mt-grip,
.music-pl-item:active .mpl-grip, .music-track-item:active .mt-grip { opacity: .55; }

/* 歌单列表手柄：绝对定位，不影响内部排版 */
.music-pl-item { position: relative; padding-left: 30px; }
.music-pl-item .mpl-grip { position: absolute; left: 9px; top: 13px; font-size: 15px; }
.music-pl-item .mpl-body { min-width: 0; }

/* 曲目手柄：作为 flex 首项 */
.music-track-item .mt-grip { font-size: 15px; align-self: center; }
.music-track-item .mt-index { margin-left: 0; }

/* 导航标签手柄：标签改为内联 flex */
.mt-tab { display: inline-flex; align-items: center; gap: 5px; }
.mt-tab .mt-tab-grip { font-size: 13px; }

/* 拖拽过程视觉状态 */
.sorting-hidden { display: none !important; }
.sort-placeholder {
    list-style: none;
    background: color-mix(in srgb, var(--accent) 10%, transparent);
    border: 1px dashed var(--accent);
    border-radius: 9px;
    margin: 6px 0;
}
.music-track-list .sort-placeholder { height: 56px; }
.music-pl-list .sort-placeholder { height: 78px; }
.music-tabs .sort-placeholder {
    height: 36px; min-width: 70px; border-radius: 999px; align-self: center;
}
.sorting-ghost {
    position: fixed;
    z-index: 99999;
    pointer-events: none;
    margin: 0 !important;
    opacity: .94;
    box-shadow: 0 14px 34px rgba(0, 0, 0, .3);
    border-radius: 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--accent);
}
.music-tabs .sorting-ghost { border-radius: 999px; }
body.music-sorting { user-select: none; -webkit-user-select: none; cursor: grabbing; }
body.music-sorting * { cursor: grabbing !important; }

/* 拖拽歌曲到其他歌单：目标歌单高亮 */
.music-pl-item.drop-target {
    background: color-mix(in srgb, var(--accent) 22%, transparent);
    border-color: var(--accent);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 45%, transparent);
}
.music-pl-item.drop-target .mpl-title::after {
    content: "放到这里 ✓";
    margin-left: 8px;
    font-size: 11px;
    font-weight: 600;
    color: var(--accent);
}
/* 复制模式：拖拽幽灵加虚线 + 右上角「＋ 复制」徽标 */
.sorting-ghost.copy-mode { border-style: dashed; }
.sorting-ghost.copy-mode::after {
    content: "＋ 复制";
    position: absolute;
    top: -11px; right: -11px;
    background: var(--accent);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 999px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, .25);
}
/* 拖拽转移提示 */
.music-dnd-tip {
    margin: 0 0 10px;
    font-size: 12.5px;
    line-height: 1.5;
    color: var(--text-secondary);
    background: color-mix(in srgb, var(--accent) 8%, transparent);
    border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
    border-radius: 9px;
    padding: 7px 11px;
}
.music-dnd-tip b { color: var(--text-primary); }
/* 触控设备始终显示手柄，便于发现可拖拽 */
@media (hover: none) {
    .music-pl-item .mpl-grip, .music-track-item .mt-grip { opacity: .55; }
}