/* ========== 潮音MixDJ舞曲网 - 全局样式 ========== */
:root {
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.08);
    --glass-bg: rgba(255, 255, 255, 0.06);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #f0f4ff;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #00d4ff;
    --accent-secondary: #7c3aed;
    --accent-gradient: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
    --hot-color: #ff4757;
    --success: #00d4aa;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --header-height: 64px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    padding-bottom: 80px;
    background-image:
        radial-gradient(ellipse at 20% 0%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 100%, rgba(124, 58, 237, 0.08) 0%, transparent 50%);
    background-attachment: fixed;
}

a { color: inherit; text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent); }

img { max-width: 100%; display: block; }

.container { max-width: 1280px; margin: 0 auto; padding: 0 20px; }

/* ========== 头部导航 ========== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 14, 26, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

.header-inner {
    display: flex;
    align-items: center;
    height: var(--header-height);
    gap: 32px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 20px;
    font-weight: 800;
    flex-shrink: 0;
}
.logo-icon { font-size: 24px; }
.logo-text { letter-spacing: -0.5px; }
.logo-accent {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.main-nav {
    display: flex;
    gap: 4px;
    flex: 1;
}
.main-nav a {
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.2s;
}
.main-nav a:hover { color: var(--text-primary); background: var(--bg-card-hover); }
.main-nav a.active {
    color: var(--accent);
    background: rgba(0, 212, 255, 0.1);
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 4px 4px 4px 16px;
    width: 260px;
    transition: all 0.3s;
}
.search-box:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15);
}
.search-box input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 14px;
}
.search-box input::placeholder { color: var(--text-muted); }
.search-box button {
    background: var(--accent-gradient);
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s;
}
.search-box button:hover { transform: scale(1.05); }

/* 分类快捷栏 */
.category-bar {
    border-top: 1px solid var(--glass-border);
    padding: 10px 0;
    overflow-x: auto;
}
.category-bar::-webkit-scrollbar { height: 0; }
.category-bar .container {
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}
.cat-label { color: var(--text-muted); font-size: 13px; flex-shrink: 0; }
.cat-tag {
    padding: 4px 14px;
    border-radius: 16px;
    font-size: 13px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    transition: all 0.2s;
    flex-shrink: 0;
}
.cat-tag:hover {
    color: var(--cat-color, var(--accent));
    border-color: var(--cat-color, var(--accent));
    background: rgba(0, 212, 255, 0.08);
}

/* ========== 主内容区 ========== */
.main-content { padding: 24px 0 40px; }

/* 区块标题 */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}
.section-title {
    font-size: 22px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}
.section-title::before {
    content: '';
    width: 4px;
    height: 22px;
    background: var(--accent-gradient);
    border-radius: 2px;
}
.section-more {
    font-size: 14px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
}
.section-more:hover { color: var(--accent); }

/* ========== 首页 Hero Banner ========== */
.hero-banner {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 32px;
    height: 280px;
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #0f172a 100%);
    display: flex;
    align-items: center;
}
.hero-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 30% 50%, rgba(0, 212, 255, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 70% 50%, rgba(124, 58, 237, 0.2) 0%, transparent 50%);
}
.hero-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-content {
    position: relative;
    z-index: 1;
    padding: 0 60px;
    max-width: 600px;
}
.hero-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(0, 212, 255, 0.15);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 16px;
    font-size: 12px;
    color: var(--accent);
    margin-bottom: 16px;
}
.hero-title {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 12px;
    line-height: 1.3;
}
.hero-title span {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-desc {
    color: var(--text-secondary);
    font-size: 15px;
    margin-bottom: 24px;
}
.hero-actions { display: flex; gap: 12px; }
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: var(--accent-gradient);
    color: white;
    border: none;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0, 212, 255, 0.3); color: white; }
.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.15); border-color: var(--accent); color: var(--accent); }

/* ========== 榜单标签切换 ========== */
.rank-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}
.rank-tab {
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}
.rank-tab:hover { color: var(--text-primary); }
.rank-tab.active {
    background: var(--accent-gradient);
    color: white;
    border-color: transparent;
}

/* ========== 歌曲列表 ========== */
.song-list { display: flex; flex-direction: column; gap: 4px; }
.song-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
    cursor: pointer;
}
.song-item:hover { background: var(--bg-card-hover); }
.song-item:hover .song-play-btn { opacity: 1; transform: scale(1); }

.song-rank {
    width: 32px;
    text-align: center;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-muted);
    flex-shrink: 0;
}
.song-rank.top1 { color: #ffd700; }
.song-rank.top2 { color: #c0c0c0; }
.song-rank.top3 { color: #cd7f32; }

.song-cover-wrap {
    position: relative;
    width: 56px;
    height: 56px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    flex-shrink: 0;
}
.song-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: var(--bg-secondary);
}
.song-play-btn {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.2s;
    color: white;
}
.song-play-btn svg { width: 24px; height: 24px; }

.song-info { flex: 1; min-width: 0; }
.song-name {
    font-size: 15px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 2px;
}
.song-item.playing .song-name { color: var(--accent); }
.song-artist {
    font-size: 13px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.song-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}
.song-tag {
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
    background: rgba(0, 212, 255, 0.1);
    color: var(--accent);
}
.song-tag.hot { background: rgba(255, 71, 87, 0.1); color: var(--hot-color); }
.song-duration { font-size: 13px; color: var(--text-muted); width: 48px; text-align: right; }
.song-plays { font-size: 13px; color: var(--text-muted); display: flex; align-items: center; gap: 4px; width: 70px; justify-content: flex-end; }
.song-actions { display: flex; gap: 8px; flex-shrink: 0; }
.icon-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
}
.icon-btn:hover { background: var(--bg-card-hover); color: var(--accent); }
.icon-btn svg { width: 16px; height: 16px; }

/* ========== 歌曲卡片网格 ========== */
.song-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}
.song-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all 0.3s;
    cursor: pointer;
}
.song-card:hover {
    transform: translateY(-4px);
    background: var(--bg-card-hover);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: var(--shadow);
}
.song-card-cover {
    position: relative;
    width: 100%;
    padding-top: 100%;
    overflow: hidden;
}
.song-card-cover img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.song-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 50%);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 16px;
    opacity: 0;
    transition: opacity 0.3s;
}
.song-card:hover .song-card-overlay { opacity: 1; }
.song-card-play {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transform: scale(0.8);
    transition: transform 0.3s;
}
.song-card:hover .song-card-play { transform: scale(1); }
.song-card-body { padding: 12px 14px; }
.song-card-title {
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 4px;
}
.song-card-artist {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ========== 两栏布局 ========== */
.two-col {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 24px;
}
.sidebar-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 24px;
}
.sidebar-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.sidebar-title::before {
    content: '';
    width: 3px;
    height: 16px;
    background: var(--accent-gradient);
    border-radius: 2px;
}

/* 侧边榜简单列表 */
.mini-song-list { display: flex; flex-direction: column; gap: 2px; }
.mini-song-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 4px;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.2s;
}
.mini-song-item:hover { background: var(--bg-card-hover); }
.mini-rank {
    width: 20px;
    text-align: center;
    font-size: 14px;
    font-weight: 700;
    color: var(--text-muted);
    flex-shrink: 0;
}
.mini-rank.top1 { color: #ffd700; }
.mini-rank.top2 { color: #c0c0c0; }
.mini-rank.top3 { color: #cd7f32; }
.mini-info { flex: 1; min-width: 0; }
.mini-name {
    font-size: 13px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.mini-artist { font-size: 11px; color: var(--text-muted); }

/* ========== 播放页 ========== */
.play-page { display: grid; grid-template-columns: 1fr 360px; gap: 32px; }

.play-main-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 32px;
    backdrop-filter: blur(10px);
}

.play-header {
    display: flex;
    gap: 28px;
    margin-bottom: 28px;
}
.play-cover {
    width: 220px;
    height: 220px;
    border-radius: var(--radius);
    overflow: hidden;
    flex-shrink: 0;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
    position: relative;
}
.play-cover img { width: 100%; height: 100%; object-fit: cover; }
.play-cover.playing img { animation: coverRotate 20s linear infinite; }
@keyframes coverRotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.play-info { flex: 1; display: flex; flex-direction: column; justify-content: center; }
.play-category {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 16px;
    font-size: 12px;
    color: var(--accent);
    width: fit-content;
    margin-bottom: 12px;
}
.play-title {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.4;
}
.play-artist {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}
.play-artist a { color: var(--accent); }
.play-stats {
    display: flex;
    gap: 24px;
    font-size: 13px;
    color: var(--text-muted);
}
.play-stat { display: flex; align-items: center; gap: 6px; }

/* 播放器区域 */
.player-section {
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
}
.player-progress {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}
.player-time { font-size: 12px; color: var(--text-muted); width: 44px; text-align: center; flex-shrink: 0; }
.player-progress-bar {
    flex: 1;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    cursor: pointer;
    position: relative;
}
.player-progress-fill {
    height: 100%;
    background: var(--accent-gradient);
    border-radius: 3px;
    width: 0%;
    position: relative;
}
.player-progress-fill::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    width: 12px;
    height: 12px;
    background: white;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transition: opacity 0.2s;
}
.player-progress-bar:hover .player-progress-fill::after { opacity: 1; }

.player-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}
.player-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    padding: 8px;
    border-radius: 50%;
}
.player-btn:hover { color: var(--accent); background: var(--bg-card-hover); }
.player-btn svg { width: 22px; height: 22px; }
.player-btn.big-play {
    width: 56px;
    height: 56px;
    background: var(--accent-gradient);
    color: white;
}
.player-btn.big-play:hover { transform: scale(1.08); color: white; }
.player-btn.big-play svg { width: 28px; height: 28px; }

/* 操作按钮组 */
.play-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.action-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text-primary);
}
.action-btn:hover { border-color: var(--accent); color: var(--accent); }
.action-btn.download {
    background: var(--accent-gradient);
    color: white;
    border-color: transparent;
}
.action-btn.download:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0, 212, 255, 0.3); color: white; }
.action-btn svg { width: 16px; height: 16px; }

/* 歌曲详情信息 */
.play-detail {
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid var(--glass-border);
}
.play-detail h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}
.detail-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.detail-item {
    display: flex;
    font-size: 13px;
}
.detail-label { color: var(--text-muted); width: 80px; flex-shrink: 0; }
.detail-value { color: var(--text-secondary); }

/* ========== 全局底部播放器 ========== */
.global-player {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 72px;
    background: rgba(10, 14, 26, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 20px;
    z-index: 200;
    transform: translateY(100%);
    transition: transform 0.3s;
}
.global-player.visible { transform: translateY(0); }

.player-track-info {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 280px;
    flex-shrink: 0;
}
.player-cover {
    width: 48px;
    height: 48px;
    border-radius: 6px;
    object-fit: cover;
    background: var(--bg-secondary);
}
.player-meta { min-width: 0; }
.player-title {
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
}
.player-artist {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
}

.player-controls {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}
.ctrl-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6px;
    border-radius: 50%;
    transition: all 0.2s;
}
.ctrl-btn:hover { color: var(--accent); }
.ctrl-btn.play-btn {
    width: 40px;
    height: 40px;
    background: var(--accent-gradient);
    color: white;
}
.ctrl-btn.play-btn:hover { transform: scale(1.08); color: white; }

.player-progress-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
}
.time-label { font-size: 11px; color: var(--text-muted); width: 40px; text-align: center; flex-shrink: 0; }
.progress-bar {
    flex: 1;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    cursor: pointer;
    position: relative;
}
.progress-fill {
    height: 100%;
    background: var(--accent-gradient);
    border-radius: 2px;
    width: 0%;
}
.progress-thumb {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 12px;
    height: 12px;
    background: white;
    border-radius: 50%;
    left: 0%;
    opacity: 0;
    transition: opacity 0.2s;
    pointer-events: none;
}
.progress-bar:hover .progress-thumb { opacity: 1; }

.player-volume {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 140px;
    flex-shrink: 0;
    color: var(--text-muted);
}
.player-volume input[type="range"] {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    outline: none;
}
.player-volume input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
}

/* ========== 分页 ========== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 32px;
}
.page-btn {
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    transition: all 0.2s;
}
.page-btn:hover { border-color: var(--accent); color: var(--accent); }
.page-btn.active {
    background: var(--accent-gradient);
    color: white;
    border-color: transparent;
}
.page-dots { color: var(--text-muted); padding: 0 4px; }

/* ========== 空状态 ========== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}
.empty-state .empty-icon { font-size: 48px; margin-bottom: 16px; }
.empty-state p { font-size: 15px; }

/* ========== 面包屑 ========== */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 20px;
}
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { color: var(--text-muted); }

/* ========== 页脚 ========== */
.site-footer {
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid var(--glass-border);
    margin-top: 40px;
}
.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    padding: 40px 20px;
}
.footer-col h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}
.footer-col p { font-size: 13px; color: var(--text-muted); line-height: 1.8; }
.footer-col ul { list-style: none; }
.footer-col li {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 8px;
}
.footer-col li a:hover { color: var(--accent); }
.footer-bottom {
    border-top: 1px solid var(--glass-border);
    padding: 16px 0;
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .two-col, .play-page { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr 1fr; }
    .search-box { width: 200px; }
}
@media (max-width: 768px) {
    .header-inner { gap: 12px; }
    .main-nav { display: none; }
    .search-box { width: 160px; }
    .hero-banner { height: 200px; }
    .hero-content { padding: 0 24px; }
    .hero-title { font-size: 24px; }
    .play-header { flex-direction: column; align-items: center; text-align: center; }
    .play-cover { width: 180px; height: 180px; }
    .play-info { align-items: center; }
    .play-main-card { padding: 20px; }
    .song-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
    .footer-inner { grid-template-columns: 1fr; gap: 24px; }
    .global-player { padding: 0 12px; gap: 8px; }
    .player-track-info { width: 140px; }
    .player-volume { display: none; }
    .song-meta .song-plays, .song-meta .song-tag { display: none; }
}