/* ===== 首页及列表页专用样式 ===== */

/* ===== 通用区块 ===== */
.home-section { margin-bottom: 36px; }
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
}
.section-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--th-text);
    display: flex;
    align-items: center;
    gap: 8px;
}
.section-title .title-icon { font-size: 22px; }
.section-more {
    font-size: 13px;
    color: var(--th-text3);
    cursor: pointer;
    transition: color 0.2s;
    white-space: nowrap;
}
.section-more:hover { color: var(--th-primary); }

/* ===== 搜索热词 ===== */
.hot-words {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 18px 20px;
    background: var(--th-card);
    border-radius: 12px;
    box-shadow: 0 2px 12px var(--th-shadow);
}
.hot-word {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 16px;
    border-radius: 20px;
    background: var(--th-bg);
    color: var(--th-text2);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid var(--th-border);
    text-decoration: none;
}
.hot-word:hover {
    background: var(--th-primary);
    color: #fff;
    border-color: var(--th-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px color-mix(in srgb, var(--th-primary) 30%, transparent);
}
.hot-word .hw-num {
    font-size: 11px;
    font-weight: 700;
    color: var(--th-primary);
    transition: color 0.2s;
}
.hot-word:hover .hw-num { color: #fff; }
.hot-word.top .hw-num { color: #f5222d; }
.hot-word.top:hover .hw-num { color: #fff; }

/* ===== 歌曲卡片网格（猜你喜欢 / 推荐歌曲） ===== */
.song-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 14px;
}
.song-card {
    background: var(--th-card);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 10px var(--th-shadow);
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
}
.song-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--th-shadow);
}
.song-card .card-cover {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    overflow: hidden;
    background: var(--th-bg);
}
.song-card .card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.35s;
}
.song-card:hover .card-cover img { transform: scale(1.08); }
.song-card .card-play {
    position: absolute;
    bottom: 8px;
    right: 8px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    color: #fff;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    cursor: pointer;
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.25s, transform 0.25s, background 0.2s;
}
.song-card:hover .card-play { opacity: 1; transform: scale(1); }
.song-card .card-play:hover { background: var(--th-primary); }
.song-card .card-info { padding: 10px 12px; }
.song-card .card-title {
    font-size: 14px;
    color: var(--th-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 500;
}
.song-card .card-singer {
    font-size: 12px;
    color: var(--th-text3);
    margin-top: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ===== 榜单区域（平行四边形Tab + 排行表格） ===== */
.chart-box {
    background: var(--th-card);
    border-radius: 14px;
    box-shadow: 0 4px 20px var(--th-shadow);
    overflow: hidden;
}
/* 榜单Tab卡片容器 */
.chart-tabs {
    display: flex;
    gap: 10px;
    padding: 16px 20px 14px;
}
/* 榜单Tab卡片 */
.chart-tab-card {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.25s;
    background: var(--th-bg);
    border: 1px solid var(--th-border);
    position: relative;
    overflow: hidden;
}
.chart-tab-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px var(--th-shadow);
}
/* 左侧色条 */
.chart-tab-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 4px;
    transition: width 0.25s;
}
.chart-tab-card[data-chart="soaring"]::before { background: #3B5BDB; }
.chart-tab-card[data-chart="new"]::before { background: #DC2626; }
.chart-tab-card[data-chart="hot"]::before { background: #F97316; }
/* 活跃状态 */
.chart-tab-card.active {
    background: var(--th-card);
    box-shadow: 0 4px 16px var(--th-shadow);
}
.chart-tab-card.active::before { width: 6px; }
.chart-tab-card[data-chart="soaring"].active { border-color: #3B5BDB; }
.chart-tab-card[data-chart="new"].active { border-color: #DC2626; }
.chart-tab-card[data-chart="hot"].active { border-color: #F97316; }
/* 图标方块 */
.chart-tab-card .card-icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
    transition: transform 0.25s;
}
.chart-tab-card[data-chart="soaring"] .card-icon {
    background: linear-gradient(135deg, #DBE4FF, #B4C6FF);
    color: #3B5BDB;
}
.chart-tab-card[data-chart="new"] .card-icon {
    background: linear-gradient(135deg, #FEE2E2, #FECACA);
    color: #DC2626;
}
.chart-tab-card[data-chart="hot"] .card-icon {
    background: linear-gradient(135deg, #FFEDD5, #FED7AA);
    color: #F97316;
}
.chart-tab-card.active .card-icon { transform: scale(1.05); }
/* 标题 */
.chart-tab-card .card-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--th-text);
}
.chart-tab-card .card-sub {
    font-size: 11px;
    color: var(--th-text3);
    margin-top: 2px;
}
/* 活跃指示器圆点 */
.chart-tab-card .card-indicator {
    margin-left: auto;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.25s;
    flex-shrink: 0;
}
.chart-tab-card[data-chart="soaring"] .card-indicator { background: #3B5BDB; }
.chart-tab-card[data-chart="new"] .card-indicator { background: #DC2626; }
.chart-tab-card[data-chart="hot"] .card-indicator { background: #F97316; }
.chart-tab-card.active .card-indicator { opacity: 1; }

/* ===== 最新单曲推荐 ===== */
.singles-tabs {
    display: flex;
    gap: 8px;
    padding: 0 20px 14px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
}
.singles-tabs::-webkit-scrollbar { height: 3px; }
.singles-tabs::-webkit-scrollbar-thumb { background: var(--th-border); border-radius: 3px; }
.singles-tab {
    flex-shrink: 0;
    padding: 8px 22px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    color: var(--th-text3);
    background: var(--th-bg);
    border: 1px solid var(--th-border);
    transition: all 0.25s;
    white-space: nowrap;
}
.singles-tab:hover {
    color: var(--th-primary);
    border-color: var(--th-primary);
}
.singles-tab.active {
    color: #fff;
    background: var(--th-primary);
    border-color: var(--th-primary);
}
.singles-content {
    position: relative;
    overflow: hidden;
}
.singles-panel {
    display: none;
    animation: singlesSlideIn 0.4s ease;
}
.singles-panel.active {
    display: block;
}
@keyframes singlesSlideIn {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}

/* 操作按钮行 */
.chart-actions {
    display: flex;
    gap: 8px;
    padding: 14px 20px;
    border-bottom: 1px solid var(--th-border);
    align-items: center;
    flex-wrap: wrap;
}
.chart-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid var(--th-border);
    background: var(--th-card);
    color: var(--th-text2);
    text-decoration: none;
}
.chart-action-btn:hover {
    border-color: var(--th-primary);
    color: var(--th-primary);
}
.chart-action-btn.primary {
    background: linear-gradient(135deg, #FFC107, #FFA000);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(255,193,7,0.35);
    font-weight: 600;
}
.chart-action-btn.primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(255,193,7,0.5);
}

/* 排行表格容器（滑动切换） */
.chart-table-wrap {
    overflow: hidden;
    position: relative;
}
.chart-table {
    display: grid;
    /* minmax(0,1fr)：允许列轨道收缩到内容最小宽度以下，防止长歌名/按钮把右列挤出导致两列错位 */
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 24px;
    padding: 12px 8px 16px;
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), opacity 0.3s;
}
.chart-table.sliding-out { transform: translateX(-30px); opacity: 0; }
.chart-table.sliding-in { transform: translateX(30px); opacity: 0; }
.chart-table.active { transform: translateX(0); opacity: 1; }
/* 排行行 */
/* 排行行：内部严格 50/50 平分为左右两栏，互不侵占 */
.chart-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 8px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s;
    /* grid 子项默认 min-width:auto 会被内容撑破，置 0 让其严格限制在列轨道内 */
    min-width: 0;
    max-width: 100%;
}
.chart-row:hover { background: var(--th-bg); }
/* 排行行：左栏(歌名/封面):右栏(按钮) ≈ 65:35 空间分配，但用 flex-grow 比例而非 percentage basis，
   避免 gap 叠加时 100%+gap 溢出；右栏设最小宽度 110px，保证 3 个按钮绝对不被挤成遮挡 */
.chart-row .row-half {
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 1px;
}
.chart-row .row-left  { flex: 65 1 0;  justify-content: flex-start; }
.chart-row .row-right { flex: 35 1 0;  justify-content: flex-end; min-width: 90px; }
.chart-row .row-trend {
    width: 28px;
    text-align: center;
    font-size: 11px;
    color: var(--th-text3);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1px;
}
.chart-row .row-trend .trend-up { color: #f5222d; }
.chart-row .row-trend .trend-down { color: #52c41a; }
.chart-row .row-trend .trend-new {
    background: #f5222d;
    color: #fff;
    font-size: 9px;
    padding: 1px 4px;
    border-radius: 3px;
    font-weight: 600;
}
.chart-row .row-cover {
    width: 40px;
    height: 40px;
    border-radius: 6px;
    object-fit: cover;
    flex-shrink: 0;
    background: var(--th-bg);
}
.chart-row .row-info { flex: 1; min-width: 0; }
.chart-row .row-title {
    font-size: 14px;
    color: var(--th-text);
    display: flex;
    align-items: center;
    gap: 4px;
    min-width: 0;
}
.chart-row .row-name-text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
    max-width: 100%;
}
.chart-row .row-singer {
    font-size: 12px;
    color: var(--th-text3);
    margin-top: 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.chart-row .row-badge {
    display: inline-block;
    font-size: 9px;
    padding: 1px 5px;
    border-radius: 3px;
    font-weight: 600;
    flex-shrink: 0;
}
.chart-row .row-badge.lossless {
    background: linear-gradient(135deg, #E8F5E9, #C8E6C9);
    color: #2E7D32;
    border: 1px solid #66BB6A;
}
.chart-row .row-badge.hq {
    background: linear-gradient(135deg, #FFF7E6, #FFE7BA);
    color: #D46B08;
    border: 1px solid #FFA940;
}
.chart-row .row-badge.normal {
    background: var(--th-bg, #f5f5f5);
    color: var(--th-text2, #999);
    border: 1px solid var(--th-border, #ddd);
}
.chart-row .row-badge.new {
    background: #f5222d;
    color: #fff;
}
.chart-row .row-album-link {
    display: inline-flex;
    align-items: center;
    font-size: 13px;
    text-decoration: none;
    opacity: 0.5;
    transition: opacity 0.2s;
    flex-shrink: 0;
}
.chart-row .row-album-link:hover { opacity: 1; }
.chart-row .row-btns {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
    opacity: 0;
    transition: opacity 0.2s;
    justify-content: flex-end;
}
.chart-row:hover .row-btns { opacity: 1; }
.chart-row .row-btn {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1px solid var(--th-border);
    background: var(--th-card);
    color: var(--th-text2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    cursor: pointer;
    transition: all 0.2s;
    padding: 0;
}
.chart-row .row-btn.play {
    border-color: #F08C4A;
    color: #F08C4A;
}
.chart-row .row-btn.play:hover { background: #F08C4A; color: #fff; }
.chart-row .row-btn.add:hover { border-color: var(--th-primary); color: var(--th-primary); }
.chart-row .row-btn.dl {
    border-color: #FFC107;
    color: #FFA000;
}
.chart-row .row-btn.dl:hover { background: #FFC107; color: #fff; }

/* 移动端：单列 + 按钮始终显示 */
@media (max-width: 640px) {
    .chart-tabs { padding: 12px 12px 10px; gap: 8px; }
    .chart-tab-card { padding: 10px 10px; gap: 8px; }
    .chart-tab-card .card-icon { width: 32px; height: 32px; font-size: 16px; }
    .chart-tab-card .card-title { font-size: 14px; }
    .chart-tab-card .card-sub { display: none; }
    .singles-tabs { padding: 0 12px 10px; gap: 6px; }
    .singles-tab { padding: 6px 16px; font-size: 13px; }
    .chart-table { grid-template-columns: 1fr; padding: 8px 12px 12px; }
    .chart-row { padding: 6px 4px; gap: 8px; }
    .chart-row .row-cover { width: 36px; height: 36px; }
    .chart-row .row-btns { opacity: 1; }
    .chart-row .row-btn { width: 26px; height: 26px; }
    .chart-actions { padding: 10px 12px; gap: 6px; }
    .chart-action-btn { padding: 5px 12px; font-size: 12px; }
}

/* ===== 歌手推荐 ===== */
.artist-tabs {
    display: flex;
    gap: 6px;
    margin-bottom: 18px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 4px;
}
.artist-tabs::-webkit-scrollbar { display: none; }
.artist-tab, .cat-tab {
    padding: 6px 16px;
    border-radius: 20px;
    background: var(--th-card);
    color: var(--th-text2);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    border: 1px solid var(--th-border);
    transition: all 0.2s;
    text-decoration: none;
}
.artist-tab:hover, .cat-tab:hover {
    border-color: var(--th-primary);
    color: var(--th-primary);
}
.artist-tab.active, .cat-tab.active {
    background: var(--th-primary);
    color: #fff;
    border-color: var(--th-primary);
}
.artist-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
}
.artist-card {
    text-align: center;
    cursor: pointer;
    transition: transform 0.2s;
}
.artist-card:hover { transform: translateY(-4px); }
.artist-card .artist-avatar {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 50%;
    overflow: hidden;
    margin-bottom: 10px;
    box-shadow: 0 4px 14px var(--th-shadow);
    position: relative;
    background: var(--th-bg);
}
.artist-card .artist-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.35s;
}
.artist-card:hover .artist-avatar img { transform: scale(1.1); }
.artist-card .artist-name {
    font-size: 14px;
    color: var(--th-text);
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.artist-card .artist-tag {
    font-size: 11px;
    color: var(--th-text3);
    margin-top: 2px;
}

/* ===== 歌单/推荐图文网格 ===== */
.playlist-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 14px;
}
.playlist-card {
    background: var(--th-card);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 10px var(--th-shadow);
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
}
.playlist-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--th-shadow);
    color: inherit;
}
.playlist-card .pl-cover {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    overflow: hidden;
    background: var(--th-bg);
}
.playlist-card .pl-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.35s;
}
.playlist-card:hover .pl-cover img { transform: scale(1.08); }
.playlist-card .pl-play-count {
    position: absolute;
    top: 8px;
    right: 10px;
    font-size: 12px;
    color: #fff;
    text-shadow: 0 1px 3px rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    gap: 3px;
}
.playlist-card .pl-info { padding: 10px 12px; }
.playlist-card .pl-title {
    font-size: 14px;
    color: var(--th-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    -webkit-line-clamp: 2;
    line-height: 1.4;
    font-weight: 500;
}
.playlist-card .pl-desc {
    font-size: 12px;
    color: var(--th-text3);
    margin-top: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ===== 友情链接 ===== */
.friend-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    padding: 20px;
    background: var(--th-card);
    border-radius: 12px;
    box-shadow: 0 2px 12px var(--th-shadow);
}
.friend-link {
    padding: 6px 16px;
    border-radius: 20px;
    background: var(--th-bg);
    color: var(--th-text2);
    font-size: 13px;
    text-decoration: none;
    border: 1px solid var(--th-border);
    transition: all 0.2s;
}
.friend-link:hover {
    color: var(--th-primary);
    border-color: var(--th-primary);
}

/* ===== 筛选区（歌单/歌手列表页） ===== */
.filter-panel {
    background: var(--th-card);
    border-radius: 12px;
    padding: 20px 24px;
    margin-bottom: 24px;
    box-shadow: 0 2px 12px var(--th-shadow);
}
.filter-group {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 8px 0;
    border-bottom: 1px solid var(--th-border);
}
.filter-group:last-child { border-bottom: none; }
.filter-label {
    font-size: 13px;
    color: var(--th-text3);
    font-weight: 600;
    min-width: 50px;
    flex-shrink: 0;
    padding-top: 4px;
}
.filter-options {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.filter-item {
    padding: 4px 14px;
    border-radius: 16px;
    font-size: 13px;
    color: var(--th-text2);
    cursor: pointer;
    transition: all 0.2s;
    background: transparent;
    border: 1px solid transparent;
    text-decoration: none;
}
.filter-item:hover {
    color: var(--th-primary);
    background: color-mix(in srgb, var(--th-primary) 8%, transparent);
}
.filter-item.active {
    background: var(--th-primary);
    color: #fff;
    font-weight: 600;
}
.filter-item.active:hover { color: #fff; }

/* ===== 歌手列表页字母筛选 ===== */
.letter-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    padding: 16px 20px;
    background: var(--th-card);
    border-radius: 12px;
    margin-bottom: 24px;
    box-shadow: 0 2px 12px var(--th-shadow);
    justify-content: center;
}
.letter-item {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--th-text2);
    cursor: pointer;
    transition: all 0.2s;
    background: var(--th-bg);
}
.letter-item:hover {
    color: var(--th-primary);
    background: color-mix(in srgb, var(--th-primary) 12%, transparent);
}
.letter-item.active {
    background: var(--th-primary);
    color: #fff;
}

/* ===== 列表页通用网格（歌单/歌手列表展示） ===== */
.list-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 14px;
    margin-bottom: 24px;
}
.list-grid.artist-list {
    grid-template-columns: repeat(6, 1fr);
}

/* ===== 首页导航条 ===== */
.home-nav {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin: 0 auto 24px;
    max-width: 680px;
}
.home-nav-item {
    padding: 8px 24px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--th-text2);
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--th-card);
    border: 1px solid var(--th-border);
    box-shadow: 0 1px 4px var(--th-shadow);
}
.home-nav-item:hover {
    color: var(--th-primary);
    border-color: var(--th-primary);
    transform: translateY(-1px);
}
.home-nav-item.active {
    background: var(--th-primary);
    color: #fff;
    border-color: var(--th-primary);
}

/* 随机播放按钮 */
.random-play-btn {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 18px;
    border-radius: 20px;
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 3px 12px rgba(102,126,234,0.4);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}
.random-play-btn::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}
.random-play-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102,126,234,0.55);
}
.random-play-btn:hover::before { left: 100%; }
.random-play-btn:active { transform: translateY(0); }
.random-play-btn .rp-icon { font-size: 16px; }
.random-play-btn.playing {
    animation: rpPulse 1.5s ease-in-out infinite;
}
@keyframes rpPulse {
    0%, 100% { box-shadow: 0 3px 12px rgba(102,126,234,0.4); }
    50% { box-shadow: 0 3px 20px rgba(102,126,234,0.7); }
}

/* 分页信息文字 */
.pagination .page-info {
    color: var(--th-text3);
    font-size: 13px;
    margin-left: 8px;
}

/* ===== 响应式适配 ===== */
@media (max-width: 900px) {
    .song-grid { grid-template-columns: repeat(4, 1fr); }
    .playlist-grid { grid-template-columns: repeat(4, 1fr); }
    .artist-grid { grid-template-columns: repeat(4, 1fr); }
    .list-grid { grid-template-columns: repeat(4, 1fr); }
    .list-grid.artist-list { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 640px) {
    .home-section { margin-bottom: 24px; }
    .section-title { font-size: 17px; }
    .song-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
    .playlist-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
    .artist-grid { grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .list-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
    .list-grid.artist-list { grid-template-columns: repeat(3, 1fr); }
    .song-card .card-info { padding: 8px 8px; }
    .song-card .card-title { font-size: 13px; }
    .playlist-card .pl-info { padding: 8px; }
    .playlist-card .pl-title { font-size: 13px; }
    .song-card .card-play { opacity: 1; transform: scale(1); }
    .playlist-card .pl-play-count { opacity: 1; }
    .filter-panel { padding: 14px 16px; }
    .filter-group { flex-direction: row; gap: 8px; }
    .filter-label { min-width: 42px; font-size: 12px; }
    .filter-item { font-size: 12px; padding: 3px 10px; }
    .letter-item { width: 28px; height: 28px; font-size: 12px; }
    .home-nav-item { padding: 6px 16px; font-size: 13px; }
    .random-play-btn { padding: 6px 14px; font-size: 12px; }
    .random-play-btn .rp-text { display: none; }
    .random-play-btn .rp-icon { font-size: 18px; }
    .artist-card .artist-name { font-size: 13px; }
    .artist-tabs { gap: 4px; }
    .artist-tab, .cat-tab { padding: 5px 12px; font-size: 12px; }
    .friend-links { padding: 14px; gap: 8px; }
    .friend-link { padding: 4px 12px; font-size: 12px; }
}
@media (max-width: 380px) {
    .song-grid { grid-template-columns: repeat(2, 1fr); }
    .playlist-grid { grid-template-columns: repeat(2, 1fr); }
    .artist-grid { grid-template-columns: repeat(3, 1fr); }
    .list-grid { grid-template-columns: repeat(2, 1fr); }
    .list-grid.artist-list { grid-template-columns: repeat(3, 1fr); }
}

/* ===== 无封面占位（img 加载失败时 JS 会加上 no-cover 类） ===== */
img.no-cover { opacity: 0; }
.song-card .card-cover:has(img.no-cover)::before,
.playlist-card .pl-cover:has(img.no-cover)::before,
.artist-card .artist-avatar:has(img.no-cover)::before {
    content: '♪';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    color: var(--th-text3);
    background:
        radial-gradient(circle at 30% 25%, color-mix(in srgb, var(--th-primary) 16%, transparent), transparent 60%),
        linear-gradient(135deg, color-mix(in srgb, var(--th-primary) 10%, var(--th-bg2)), var(--th-bg));
}
/* 兼容不支持 :has() 的浏览器：父容器至少显示主题色渐变底 */
.song-card .card-cover,
.playlist-card .pl-cover,
.artist-card .artist-avatar {
    background:
        radial-gradient(circle at 30% 25%, color-mix(in srgb, var(--th-primary) 8%, transparent), transparent 60%),
        var(--th-bg);
}

/* ===== 猜你喜欢刷新按钮 ===== */
.guess-refresh-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--th-border);
    background: var(--th-card);
    color: var(--th-text2);
    cursor: pointer;
    transition: all 0.25s;
    padding: 0;
    flex-shrink: 0;
}
.guess-refresh-btn:hover {
    color: var(--th-primary);
    border-color: var(--th-primary);
    transform: rotate(15deg);
    box-shadow: 0 2px 10px color-mix(in srgb, var(--th-primary) 25%, transparent);
}
.guess-refresh-btn:active {
    transform: scale(0.92);
}
.guess-refresh-btn .refresh-icon {
    display: block;
    transition: transform 0.3s;
}
.guess-refresh-btn.rotating .refresh-icon {
    animation: guessSpin 0.8s linear infinite;
}
@keyframes guessSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ===== 播放状态高亮 ===== */
.song-card.playing {
    box-shadow: 0 0 0 2px var(--th-primary), 0 4px 20px color-mix(in srgb, var(--th-primary) 30%, transparent);
}
.song-card.playing .card-play {
    opacity: 1;
    transform: scale(1);
    background: var(--th-primary);
}
.chart-row.playing {
    background: color-mix(in srgb, var(--th-primary) 8%, transparent);
}
.chart-row.playing .row-btn.play {
    background: var(--th-primary);
    color: #fff;
    border-color: var(--th-primary);
}

/* ===== 榜单歌曲推荐（6大歌单榜） ===== */
.bang-box {
    background: var(--th-card);
    border-radius: 14px;
    box-shadow: 0 4px 20px var(--th-shadow);
    overflow: hidden;
}
/* 6大榜单 Tab：横向滑动（滚动条隐藏） */
.bang-tabs {
    display: flex;
    gap: 8px;
    padding: 14px 20px 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}
.bang-tabs::-webkit-scrollbar { display: none; }
.bang-tab {
    flex-shrink: 0;
    padding: 8px 20px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    color: var(--th-text3);
    background: var(--th-bg);
    border: 1px solid var(--th-border);
    transition: all 0.25s;
    white-space: nowrap;
    user-select: none;
}
.bang-tab:hover {
    color: var(--th-primary);
    border-color: var(--th-primary);
}
.bang-tab.active {
    color: #fff;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-color: transparent;
    box-shadow: 0 2px 10px rgba(102,126,234,0.35);
}
/* 工具栏：期数选择 + 加载计数 */
.bang-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
    padding: 12px 20px;
    border-bottom: 1px solid var(--th-border);
}
.bang-period-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}
.bang-period-label {
    font-size: 13px;
    color: var(--th-text3);
    flex-shrink: 0;
}
.bang-period {
    position: relative;
    display: inline-block;
}
.bang-period-trigger {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: 20px;
    border: 1px solid var(--th-border);
    background: var(--th-bg);
    color: var(--th-text);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    max-width: 260px;
    outline: none;
}
.bang-period-trigger:hover:not(:disabled) {
    border-color: var(--th-primary);
    color: var(--th-primary);
}
.bang-period-trigger:focus-visible {
    border-color: var(--th-primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--th-primary) 25%, transparent);
}
.bang-period-trigger:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}
.bang-period-trigger[aria-expanded="true"] {
    border-color: var(--th-primary);
    color: var(--th-primary);
}
.bang-period-text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 500;
}
.bang-period-arrow {
    font-size: 10px;
    opacity: 0.55;
    transition: transform 0.25s ease;
    flex-shrink: 0;
}
.bang-period-trigger[aria-expanded="true"] .bang-period-arrow {
    transform: rotate(180deg);
    opacity: 1;
}
/* 自定义下拉面板 */
.bang-period-panel {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    min-width: 210px;
    max-width: 280px;
    max-height: 320px;
    overflow-y: auto;
    background: var(--th-card);
    border: 1px solid var(--th-border);
    border-radius: 12px;
    box-shadow: 0 10px 30px var(--th-shadow), 0 2px 8px rgba(0,0,0,0.06);
    padding: 6px;
    z-index: 50;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.96);
    transform-origin: top left;
    transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s;
    scrollbar-width: none;
    -ms-overflow-style: none;
}
.bang-period-panel::-webkit-scrollbar { width: 0; height: 0; display: none; }
.bang-period-panel.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}
/* 分组标题 */
.bp-group {
    padding: 10px 12px 5px;
    font-size: 11px;
    font-weight: 700;
    color: var(--th-text3);
    letter-spacing: 0.8px;
    user-select: none;
}
/* 第一项（最新一期）与后续分组之间加分隔 */
.bang-period-panel .bp-item:first-child {
    margin-bottom: 4px;
    border-bottom: 1px solid var(--th-border);
    padding-bottom: 10px;
}
/* 选项项 */
.bp-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 13px;
    color: var(--th-text);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    user-select: none;
}
.bp-item:hover {
    background: var(--th-bg);
    color: var(--th-primary);
}
.bp-item.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(102,126,234,0.28);
}
.bp-item.active .bp-tag {
    color: rgba(255,255,255,0.85);
    background: rgba(255,255,255,0.18);
}
.bp-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.bp-tag {
    font-size: 10px;
    color: var(--th-text3);
    background: var(--th-bg);
    padding: 2px 6px;
    border-radius: 6px;
    flex-shrink: 0;
    letter-spacing: 0.3px;
}
.bp-item:first-child .bp-tag {
    background: linear-gradient(135deg, #f5222d 0%, #fa541c 100%);
    color: #fff;
    font-weight: 600;
}
.bang-count {
    font-size: 12px;
    color: var(--th-text3);
    white-space: nowrap;
}
/* 歌曲列表：简洁双列自适应网格，内部滚动（滚动条隐藏但可滚动） */
.bang-list {
    max-height: 460px;
    overflow-y: auto;
    padding: 10px 14px 14px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2px 14px;
    align-content: start;
    scrollbar-width: none;        /* Firefox：隐藏滚动条 */
    -ms-overflow-style: none;     /* IE/旧 Edge：隐藏滚动条 */
}
.bang-list::-webkit-scrollbar {  /* WebKit：隐藏滚动条 */
    width: 0;
    height: 0;
    display: none;
}
.bang-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 8px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s;
    min-width: 0;
}
.bang-row:hover { background: var(--th-bg); }
.bang-rank {
    width: 26px;
    text-align: center;
    font-size: 13px;
    font-weight: 700;
    font-style: italic;
    color: var(--th-text3);
    flex-shrink: 0;
}
/* 前三名高亮序号 */
.bang-list .bang-row:nth-child(1) .bang-rank { color: #f5222d; }
.bang-list .bang-row:nth-child(2) .bang-rank { color: #fa8c16; }
.bang-list .bang-row:nth-child(3) .bang-rank { color: #faad14; }
.bang-cover {
    width: 38px;
    height: 38px;
    border-radius: 6px;
    object-fit: cover;
    flex-shrink: 0;
    background: var(--th-bg);
}
.bang-info {
    flex: 1;
    min-width: 0;
}
.bang-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--th-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.bang-artist {
    font-size: 12px;
    color: var(--th-text3);
    margin-top: 1px;
    display: flex;
    align-items: center;
    gap: 4px;
    overflow: hidden;
    white-space: nowrap;
}
.bang-artist .plain-link {
    color: var(--th-text3);
    text-decoration: none;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.bang-artist .plain-link:hover { color: var(--th-primary); }
.bang-album {
    flex-shrink: 0;
    text-decoration: none;
    font-size: 12px;
    opacity: 0.5;
    transition: opacity 0.2s;
}
.bang-album:hover { opacity: 1; }
.bang-btns {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
    opacity: 0;
    transition: opacity 0.2s;
}
.bang-row:hover .bang-btns { opacity: 1; }
.bang-btn {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 1px solid var(--th-border);
    background: var(--th-card);
    color: var(--th-text2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    cursor: pointer;
    transition: all 0.2s;
    padding: 0;
}
.bang-btn.play { border-color: #F08C4A; color: #F08C4A; }
.bang-btn.play:hover { background: #F08C4A; color: #fff; }
.bang-btn.add:hover { border-color: var(--th-primary); color: var(--th-primary); }
.bang-btn.dl { border-color: #FFC107; color: #FFA000; }
.bang-btn.dl:hover { background: #FFC107; color: #fff; }
.bang-empty {
    grid-column: 1 / -1;
    padding: 40px 0;
    text-align: center;
    font-size: 13px;
    color: var(--th-text3);
}
/* 播放状态高亮 */
.bang-row.playing {
    background: color-mix(in srgb, var(--th-primary) 8%, transparent);
}
.bang-row.playing .bang-btn.play {
    background: var(--th-primary);
    color: #fff;
    border-color: var(--th-primary);
}
/* 移动端适配：单列列表 + 按钮常显 */
@media (max-width: 640px) {
    .bang-tabs { padding: 12px 12px 0; gap: 6px; }
    .bang-tab { padding: 6px 14px; font-size: 13px; }
    .bang-toolbar { padding: 10px 12px; }
    .bang-period-trigger { max-width: 180px; padding: 6px 12px; font-size: 12px; }
    .bang-period-panel { min-width: 180px; max-width: 230px; max-height: 280px; }
    .bang-list { max-height: 400px; grid-template-columns: 1fr; padding: 8px 10px 12px; }
    .bang-btns { opacity: 1; }
    .bang-cover { width: 34px; height: 34px; }
}