* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #ea4c4c;
    --primary-light: #ff6b6b;
    --primary-dark: #d43f3f;
    --bg-body: #1e1e1e;
    --bg-card: #282828;
    --bg-card-rgb: 40, 40, 40;
    --bg-hover: #333333;
    --bg-header: rgba(30, 30, 30, 0.9);
    --bg-bar: rgba(24, 24, 24, 0.98);
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #727272;
    --border: rgba(255, 255, 255, 0.06);
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

[data-theme="light"] {
    --bg-body: #fafafa;
    --bg-card: #ffffff;
    --bg-card-rgb: 255, 255, 255;
    --bg-hover: #f0f0f0;
    --bg-header: rgba(255, 255, 255, 0.92);
    --bg-bar: rgba(255, 255, 255, 0.98);
    --text-primary: #1a1a1a;
    --text-secondary: #5a5a5a;
    --text-muted: #999999;
    --border: rgba(0, 0, 0, 0.06);
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
    background: var(--bg-body);
    height: 100vh;
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    transition: background 0.4s ease;
    overflow: hidden;
}

/* 顶部导航栏 */
.header {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    padding: 16px 32px;
    background: var(--bg-header);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
}

.logo {
    position: absolute;
    left: 32px;
    font-size: 1.4rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.search-bar {
    width: 100%;
    max-width: 520px;
    position: relative;
    transition: max-width 0.3s ease;
}

.search-bar:focus-within {
    max-width: 560px;
}

.search-bar input {
    width: 100%;
    padding: 12px 170px 12px 44px;
    border: 1px solid transparent;
    border-radius: 50px;
    background: rgba(var(--bg-card-rgb), 0.8);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.search-bar input::placeholder {
    color: var(--text-muted);
}

.search-bar input:focus {
    box-shadow: 0 0 0 3px rgba(234, 76, 76, 0.2), 0 4px 16px rgba(234, 76, 76, 0.15);
    border: 1px solid rgba(234, 76, 76, 0.4);
}

.search-bar > svg {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--text-muted);
}

.search-type-toggle {
    position: absolute;
    right: 48px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    gap: 4px;
    background: var(--bg-hover);
    border-radius: 20px;
    padding: 4px;
}

.search-type-toggle::before {
    content: '';
    position: absolute;
    width: calc(50% - 6px);
    height: calc(100% - 8px);
    background: var(--primary);
    border-radius: 16px;
    transition: transform 0.3s ease;
    left: 4px;
    top: 4px;
    z-index: 0;
}

.search-type-toggle:has(.search-type-btn:last-child.active)::before {
    transform: translateX(calc(100% + 4px));
}

.search-type-btn {
    padding: 6px 14px;
    border: none;
    border-radius: 16px;
    background: transparent;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.search-type-btn:hover {
    color: var(--text-primary);
}

.search-type-btn.active {
    background: transparent;
    color: white;
}

.search-btn {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s ease;
    box-shadow: 0 4px 12px rgba(234, 76, 76, 0.3);
}

.search-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-50%) scale(1.05);
}

.search-btn:active {
    transform: translateY(-50%) scale(0.95);
}

.search-btn svg {
    width: 18px;
    height: 18px;
}

.header-controls {
    position: absolute;
    right: 32px;
    display: flex;
    align-items: center;
    gap: 12px;
}

/* 自定义下拉菜单 */
.custom-select {
    position: relative;
    user-select: none;
}

.custom-select-trigger {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s ease;
    white-space: nowrap;
}

.custom-select-trigger svg {
    width: 14px;
    height: 14px;
    opacity: 0.5;
    transition: transform 0.25s ease;
}

.custom-select.open .custom-select-trigger svg {
    transform: rotate(180deg);
}

.custom-select-trigger:hover {
    background: var(--bg-hover);
}

.custom-select.open .custom-select-trigger {
    border-color: rgba(255, 255, 255, 0.1);
}

.custom-select-options {
    position: absolute;
    top: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    min-width: 100%;
    padding: 6px;
    border-radius: 10px;
    background: rgba(var(--bg-card-rgb, 40, 40, 40), 0.8);
    backdrop-filter: blur(12px) saturate(180%);
    -webkit-backdrop-filter: blur(12px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) translateY(-4px);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 200;
}

.custom-select.open .custom-select-options {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.custom-select-option {
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
    text-align: center;
}

.custom-select-option:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

.custom-select-option.selected {
    color: var(--primary);
    font-weight: 600;
}

.theme-toggle {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    background: var(--bg-card);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s ease;
}

.theme-toggle:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    transform: rotate(15deg);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
}

/* 主内容区 */
.main-content {
    flex: 1;
    display: flex;
    align-items: stretch;
    overflow: hidden;
    min-height: 0;
}

/* 左侧边栏 */
.sidebar {
    width: 240px;
    min-width: 200px;
    padding: 20px 0;
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    overflow-y: auto;
    flex-shrink: 0;
}

.sidebar::-webkit-scrollbar {
    width: 0;
}

.sidebar-section {
    margin-bottom: 24px;
}

.sidebar-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px 0 32px;
    margin-bottom: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    opacity: 0.7;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    line-height: 1;
}

.sidebar-add-btn {
    width: 20px;
    height: 20px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s ease;
    transform: translateY(1px);
}

.sidebar-add-btn:hover {
    color: var(--primary);
    background: rgba(234, 76, 76, 0.1);
}

.sidebar-add-btn svg {
    width: 14px;
    height: 14px;
}

.sidebar-nav {
    list-style: none;
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    margin: 2px 12px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 50px;
    line-height: 1;
}

.sidebar-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.sidebar-item:hover svg {
    transform: translateY(-2px);
}

.sidebar-item.active {
    background: rgba(234, 76, 76, 0.1);
    color: var(--primary);
}

.sidebar-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.sidebar-item-text {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-item-count {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1;
    flex-shrink: 0;
    transform: translateY(1px);
}

.sidebar-divider {
    height: 1px;
    background: var(--border);
    margin: 12px 20px;
}

.playlist-count-badge {
    background: var(--primary);
    color: white;
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: 600;
}

/* 创建歌单弹窗 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 24px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow);
    transform: translateY(-20px);
    transition: transform 0.3s ease;
}

.modal-overlay.show .modal {
    transform: translateY(0);
}

.modal-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.modal-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-body);
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
}

.modal-input:focus {
    border-color: var(--primary);
}

.modal-actions {
    display: flex;
    gap: 12px;
    margin-top: 20px;
    justify-content: flex-end;
}

.modal-btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.modal-btn.primary {
    background: var(--primary);
    color: white;
}

.modal-btn.primary:hover {
    background: var(--primary-dark);
}

.modal-btn.secondary {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.modal-btn.secondary:hover {
    background: var(--bg-body);
}

/* 右侧列表面板 */
.list-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    position: relative;
    overflow: hidden;
    background: var(--bg-card);
    border-radius: 0;
    margin: 0;
    min-width: 0;
}

.list-header {
    flex-shrink: 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.list-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    padding: 16px 0 var(--list-bottom-padding, 96px);
    min-height: 0;
}

/* 当只有空状态时移除 padding */
.list-panel:not(:has(.playlist-header)) .list-content:has(.empty-list) {
    padding: 0;
}

/* 歌单详情顶部渐隐 */
.list-panel:has(.playlist-header) .list-content {
    -webkit-mask-image: linear-gradient(
        to bottom,
        transparent 0,
        #000 16px,
        #000 100%
    );
    mask-image: linear-gradient(
        to bottom,
        transparent 0,
        #000 16px,
        #000 100%
    );
    -webkit-mask-size: 100% 100%;
    mask-size: 100% 100%;
}

.list-content::-webkit-scrollbar {
    width: 6px;
}

.list-content::-webkit-scrollbar-track {
    background: transparent;
}

.list-content::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 3px;
}

.song-item {
    display: flex;
    align-items: center;
    padding: 14px 24px;
    cursor: pointer;
    transition: all 0.2s ease;
    border-radius: var(--radius-md);
    margin: 0 12px;
}

/* 歌单详情中第一首歌的安全间距 */
.playlist-header + .song-item {
    margin-top: 8px;
}

.song-item:hover {
    background: var(--bg-hover);
}

.song-item.active {
    background: rgba(234, 76, 76, 0.12);
}

.song-item.active .song-item-name {
    color: var(--primary);
}

.song-item.active .song-item-index {
    color: var(--primary);
}

.song-item-index {
    width: 32px;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
}

.song-item-info {
    flex: 1;
    min-width: 0;
    margin-right: 16px;
}

.song-item-name {
    font-size: 0.95rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color 0.2s;
}

.song-name-text {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
}

.song-lock-icon {
    font-size: 0.75rem;
    opacity: 0.6;
    flex-shrink: 0;
    line-height: 1;
}

.song-item-artist {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.song-item-album {
    width: 140px;
    font-size: 0.8rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-right: 16px;
}

.song-item-duration {
    width: 48px;
    text-align: right;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
}

.song-item-like {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: 8px;
    border: none;
    background: transparent;
    cursor: pointer;
    color: var(--text-muted);
    border-radius: 50%;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.song-item-like:hover {
    color: var(--primary);
    background: rgba(234, 76, 76, 0.1);
}

.song-item-like.liked {
    color: var(--primary);
}

.song-item-like.liked svg {
    fill: var(--primary);
}

.song-item-like svg {
    width: 18px;
    height: 18px;
    transition: transform 0.2s ease;
}

.song-item-like:active svg {
    transform: scale(0.85);
}

.song-item-add {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: 4px;
    border: none;
    background: transparent;
    cursor: pointer;
    color: var(--text-muted);
    border-radius: 50%;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.song-item-add:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.song-item-add svg {
    width: 18px;
    height: 18px;
}

/* 歌单选择弹窗 */
.playlist-picker {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.playlist-picker.show {
    opacity: 1;
    visibility: visible;
}

.playlist-picker-content {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 20px;
    width: 100%;
    max-width: 360px;
    max-height: 70vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
    transform: translateY(-20px);
    transition: transform 0.3s ease;
}

.playlist-picker.show .playlist-picker-content {
    transform: translateY(0);
}

.playlist-picker-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.playlist-picker-title {
    font-size: 1rem;
    font-weight: 700;
}

.playlist-picker-close {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.playlist-picker-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.playlist-picker-close svg {
    width: 20px;
    height: 20px;
}

.playlist-picker-list {
    flex: 1;
    overflow-y: auto;
    margin: 0 -20px;
    padding: 0 20px;
}

.playlist-picker-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
}

.playlist-picker-item:hover {
    background: var(--bg-hover);
}

.playlist-picker-item svg {
    width: 20px;
    height: 20px;
    color: var(--text-muted);
    flex-shrink: 0;
}

.playlist-picker-item-name {
    flex: 1;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.playlist-picker-item-count {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.playlist-picker-empty {
    text-align: center;
    color: var(--text-muted);
    padding: 32px 0;
    font-size: 0.9rem;
}

.playlist-picker-create {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    margin-top: 8px;
    border: 1px dashed var(--text-muted);
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-muted);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
    width: 100%;
}

.playlist-picker-create:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.playlist-picker-create svg {
    width: 18px;
    height: 18px;
}

/* 推荐歌单 */
.recommend-header {
    padding: 20px 24px 12px;
}

.recommend-title {
    font-size: 1.2rem;
    font-weight: 700;
}

.recommend-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 20px;
    padding: 12px 24px 24px;
}

.recommend-card {
    cursor: pointer;
    transition: transform 0.2s ease;
}

.recommend-card:hover {
    transform: translateY(-4px);
}

.recommend-card-cover {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--bg-hover);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.recommend-card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.recommend-card:hover .recommend-card-cover img {
    transform: scale(1.05);
}

.recommend-card-play {
    position: absolute;
    right: 10px;
    bottom: 10px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateY(8px);
    transition: all 0.25s ease;
    box-shadow: 0 4px 12px rgba(234, 76, 76, 0.4);
}

.recommend-card:hover .recommend-card-play {
    opacity: 1;
    transform: translateY(0);
}

.recommend-card-play svg {
    width: 20px;
    height: 20px;
    margin-left: 2px;
}

.recommend-card-count {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.5);
    color: white;
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 10px;
    backdrop-filter: blur(4px);
}

.recommend-card-collect {
    position: absolute;
    top: 8px;
    left: 8px;
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.5);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.25s ease;
    backdrop-filter: blur(4px);
}

.recommend-card:hover .recommend-card-collect {
    opacity: 1;
}

.recommend-card-collect:hover {
    background: rgba(0, 0, 0, 0.7);
    transform: scale(1.1);
}

.recommend-card-collect.collected {
    opacity: 1;
    color: var(--primary);
}

.recommend-card-collect.collected svg {
    fill: var(--primary);
}

.recommend-card-collect svg {
    width: 16px;
    height: 16px;
}

.recommend-card-name {
    margin-top: 10px;
    font-size: 0.85rem;
    font-weight: 500;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 排行榜卡片 */
.toplist-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    padding: 12px 24px 24px;
}

.toplist-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px;
    background: var(--bg-hover);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
}

.toplist-card:hover {
    background: var(--bg-body);
    transform: translateX(4px);
}

.toplist-card-cover {
    position: relative;
    width: 64px;
    height: 64px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--bg-card);
    flex-shrink: 0;
}

.toplist-card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.toplist-card-play {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.4);
    color: white;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.toplist-card:hover .toplist-card-play {
    opacity: 1;
}

.toplist-card-play svg {
    width: 24px;
    height: 24px;
}

.toplist-card-info {
    flex: 1;
    min-width: 0;
}

.toplist-card-name {
    font-size: 0.95rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.toplist-card-update {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
}

@media (max-width: 600px) {
    .recommend-grid {
        grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
        gap: 16px;
        padding: 12px 16px 24px;
    }

    .toplist-grid {
        grid-template-columns: 1fr;
        padding: 12px 16px 24px;
    }
}

/* 歌单卡片 */
.playlist-item {
    display: flex;
    align-items: center;
    padding: 12px 24px;
    cursor: pointer;
    transition: all 0.2s ease;
    gap: 16px;
    border-radius: var(--radius-md);
    margin: 0 12px;
}

.playlist-item:hover {
    background: var(--bg-hover);
}

.playlist-cover {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    background: var(--bg-hover);
    overflow: hidden;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.playlist-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.playlist-info {
    flex: 1;
    min-width: 0;
}

.playlist-name {
    font-size: 0.95rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.playlist-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 6px;
}

.playlist-creator {
    color: var(--text-secondary);
}

.playlist-stats {
    display: flex;
    gap: 16px;
    margin-top: 4px;
}

/* 歌单详情头部 */
.playlist-header {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 30px;
    min-height: 120px;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    margin: 0;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: none;
    transition: padding 0.3s ease, min-height 0.3s ease, box-shadow 0.3s ease;
}

.playlist-header.stuck {
    z-index: 30;
    padding: 12px 30px;
    min-height: 80px;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.18);
}

.playlist-header.stuck .playlist-header-cover {
    width: 56px;
    height: 56px;
}

.playlist-header.stuck .playlist-header-name {
    font-size: 1.1rem;
}

.playlist-header.stuck .playlist-header-meta {
    margin-top: 4px;
    font-size: 0.75rem;
}

[data-theme="light"] .playlist-header.stuck {
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.08);
}

/* 模糊背景层 */
.playlist-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background-image: var(--cover-bg);
    background-size: cover;
    background-position: center;
    filter: blur(40px) saturate(1.5);
    opacity: 0.4;
    z-index: 0;
    transition: opacity 0.3s ease;
}

.playlist-header.stuck::before {
    opacity: 0.15;
}

/* 半透明遮罩确保文字清晰 */
.playlist-header::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(var(--bg-card-rgb), 0.85) 0%, rgba(var(--bg-card-rgb), 0.7) 100%);
    z-index: 1;
    transition: background 0.3s ease;
}

.playlist-header.stuck::after {
    background: rgba(var(--bg-card-rgb), 1);
}

/* 确保内容在遮罩层之上 */
.playlist-header > * {
    position: relative;
    z-index: 2;
}

.playlist-header-cover {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    flex-shrink: 0;
    margin-right: 4px;
    transition: width 0.3s ease, height 0.3s ease;
}

.playlist-header-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.playlist-header-info {
    flex: 1;
    min-width: 0;
}

.playlist-header-name {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: font-size 0.3s ease;
}

.playlist-header-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    opacity: 0.7;
    margin-top: 10px;
    letter-spacing: 0.5px;
    transition: font-size 0.3s ease, margin-top 0.3s ease;
}
}

.playlist-header-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.playlist-action-btn {
    padding: 12px 28px;
    border: none;
    border-radius: 50px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    box-shadow: 0 4px 16px rgba(234, 76, 76, 0.4);
}

.playlist-action-btn:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 6px 24px rgba(234, 76, 76, 0.5);
}

.playlist-action-btn:active {
    transform: translateY(0) scale(0.98);
}

.playlist-action-btn.secondary {
    background: rgba(var(--bg-card-rgb), 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text-primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.playlist-action-btn.secondary:hover {
    background: rgba(var(--bg-card-rgb), 0.8);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.playlist-action-btn.collect-btn {
    width: 44px;
    padding: 10px;
}

.playlist-action-btn.collect-btn svg {
    width: 20px;
    height: 20px;
}

.playlist-action-btn.collect-btn.collected {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
}

.playlist-action-btn.collect-btn.collected svg {
    fill: white;
}

/* 返回按钮 - 纯图标形式 */
.playlist-back-btn {
    width: 36px;
    height: 36px;
    padding: 0;
    border: none;
    background: rgba(var(--bg-card-rgb), 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 3;
}

.playlist-back-btn:hover {
    background: rgba(var(--bg-card-rgb), 0.9);
    color: var(--text-primary);
    transform: scale(1.1);
}

.playlist-back-btn:active {
    transform: scale(0.95);
}

.playlist-back-btn svg {
    width: 20px;
    height: 20px;
}

.empty-list {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    margin: 0 auto;
    color: var(--text-muted);
    gap: 16px;
    text-align: center;
}

.empty-list svg {
    width: 64px;
    height: 64px;
    opacity: 0.4;
}

.empty-list span {
    font-size: 0.9rem;
}

.load-more {
    display: flex;
    justify-content: center;
    padding: 16px 0 8px;
}

.load-more-btn {
    padding: 8px 20px;
    border: none;
    border-radius: 50px;
    background: var(--bg-hover);
    color: var(--text-primary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.load-more-btn:hover {
    background: var(--bg-body);
}

.load-more-btn:disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

.load-more-end {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* 底部播放控制栏 */
.player-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 64px;
    display: flex;
    align-items: center;
    padding: 0 32px;
    background: rgba(var(--bg-card-rgb), 0.85);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.15), 0 -1px 6px rgba(0, 0, 0, 0.1);
    z-index: 100;
}

/* 浅色主题下的播放栏 */
[data-theme="light"] .player-bar {
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.08), 0 -1px 6px rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .playlist-header {
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.player-bar-info {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    width: 200px;
    min-width: 200px;
    max-width: 420px;
    flex: 1;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    background: rgba(var(--bg-card-rgb), 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.player-bar-lyric {
    flex: 1;
    min-width: 0;
    font-size: 0.85rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.player-bar-left {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    min-width: 0;
    flex: 1;
    padding-right: 20px;
}

.player-bar-cover {
    width: 40px;
    height: 40px;
    border-radius: 6px;
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-hover) 100%);
    overflow: hidden;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 音符占位图标 */
.player-bar-cover::before {
    content: '♪';
    font-size: 16px;
    color: var(--text-muted);
    opacity: 0.5;
}

.player-bar-cover img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: none;
}

.player-bar-cover img.loaded {
    display: block;
}

.player-bar-text {
    min-width: 0;
    max-width: 140px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.player-bar-title {
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.3;
}

.player-bar-artist {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 1px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.3;
}

.player-controls {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.control-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 6px;
    border-radius: 50%;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.control-btn:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
    transform: scale(1.1);
}

.control-btn:active {
    transform: scale(0.95);
}

.control-btn svg {
    width: 18px;
    height: 18px;
}

.control-btn.play-btn {
    width: 38px;
    height: 38px;
    background: var(--primary);
    color: white;
    box-shadow: 0 3px 12px rgba(234, 76, 76, 0.5), 0 0 20px rgba(234, 76, 76, 0.3);
    animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 3px 12px rgba(234, 76, 76, 0.5), 0 0 20px rgba(234, 76, 76, 0.3);
    }
    50% {
        box-shadow: 0 3px 16px rgba(234, 76, 76, 0.6), 0 0 28px rgba(234, 76, 76, 0.4);
    }
}

.control-btn.play-btn:hover {
    background: var(--primary-dark);
    color: white;
    transform: scale(1.1);
    box-shadow: 0 4px 20px rgba(234, 76, 76, 0.6), 0 0 32px rgba(234, 76, 76, 0.5);
    animation: none;
}

.control-btn.play-btn svg {
    width: 18px;
    height: 18px;
}

.control-btn.active {
    color: var(--primary);
    background: rgba(234, 76, 76, 0.1);
}

.control-btn.active:hover {
    background: rgba(234, 76, 76, 0.2);
}

.progress-section {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    max-width: 300px;
}

.time-display {
    font-size: 0.7rem;
    color: var(--text-muted);
    width: 36px;
    font-variant-numeric: tabular-nums;
    flex-shrink: 0;
}

.time-display.current {
    text-align: right;
}

.progress-bar {
    flex: 1;
    height: 4px;
    background: var(--bg-hover);
    border-radius: 2px;
    cursor: pointer;
    position: relative;
    transition: height 0.2s ease;
}

.progress-bar:hover {
    height: 6px;
}

.progress-bar:hover .progress-handle {
    opacity: 1;
    transform: translateY(-50%) scale(1);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), #ff6b6b);
    border-radius: 2px;
    width: 0%;
    transition: width 0.1s linear;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.3) 50%, transparent 100%);
    border-radius: 2px;
}

.progress-handle {
    position: absolute;
    top: 50%;
    transform: translateY(-50%) scale(0);
    width: 12px;
    height: 12px;
    background: white;
    border-radius: 50%;
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transition: opacity 0.2s, transform 0.2s;
    pointer-events: none;
}

/* 加载状态流光动画 */
.progress-bar.loading .progress-fill {
    background: linear-gradient(90deg, var(--bg-hover), var(--primary), var(--bg-hover));
    background-size: 200% 100%;
    animation: loading-shimmer 1.5s ease-in-out infinite;
}

@keyframes loading-shimmer {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

.volume-section {
    position: relative;
    display: flex;
    align-items: center;
}

/* 音量弹出容器 */
.volume-popup {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 16px 12px;
    background: var(--bg-card);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    margin-bottom: 12px;
}

.volume-popup::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--bg-card);
}

.volume-section:hover .volume-popup {
    opacity: 1;
    visibility: visible;
}

.volume-slider {
    width: 4px;
    height: 80px;
    -webkit-appearance: slider-vertical;
    appearance: slider-vertical;
    background: var(--bg-hover);
    border-radius: 2px;
    outline: none;
    transition: all 0.2s ease;
    writing-mode: vertical-lr;
    direction: rtl;
}

.volume-slider:hover {
    width: 6px;
}

.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
    transition: transform 0.2s ease;
}

.volume-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.volume-slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

/* 状态提示 */
.status-toast {
    position: fixed;
    top: 88px;
    left: 50%;
    transform: translateX(-50%) translateY(-16px);
    padding: 12px 24px;
    background: var(--bg-card);
    color: var(--text-primary);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.status-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.status-toast.error {
    background: #ef4444;
    color: white;
}

.status-toast.success {
    background: var(--primary);
    color: white;
}

audio {
    display: none;
}

/* 响应式 */
@media (max-width: 1024px) {
    .sidebar {
        width: 200px;
        min-width: 180px;
    }
}

@media (max-width: 900px) {
    .sidebar {
        display: none;
    }

    .list-panel {
        border-radius: 0;
        margin: 0;
    }

    .song-item-album {
        display: none;
    }
}

@media (max-width: 600px) {
    .header {
        flex-wrap: wrap;
        gap: 12px;
        padding: 14px 16px;
    }

    .logo {
        position: static;
        font-size: 1.2rem;
    }

    .search-bar {
        order: 3;
        max-width: 100%;
        flex-basis: 100%;
    }

    .search-btn {
        right: 6px;
    }

    .header-controls {
        position: static;
        margin-left: auto;
    }

    .player-bar {
        height: auto;
        flex-wrap: wrap;
        gap: 8px;
        padding: 8px 16px;
    }

    .player-bar-left {
        width: 100%;
        order: 1;
        padding-right: 0;
    }

    .player-bar-text {
        max-width: none;
        flex: 1;
    }

    .progress-section {
        display: none;
    }

    .player-controls {
        position: static;
        transform: none;
        order: 2;
    }

    .volume-section {
        display: none;
    }

    body {
        padding-bottom: 90px;
    }
}