/* 视听中心页面样式 */

.listening-layout {
    display: flex;
    min-height: calc(100vh - var(--nav-height));
    background: var(--bg-secondary);
    padding-bottom: 80px;
}

/* 左侧边栏 */
.listening-sidebar {
    width: 260px;
    background: white;
    border-right: 1px solid var(--border);
    position: fixed;
    top: var(--nav-height);
    height: calc(100vh - var(--nav-height));
    overflow-y: auto;
    z-index: 10;
    padding: 20px 0;
}

.listening-sidebar::-webkit-scrollbar { width: 4px; }
.listening-sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.sidebar-section {
    padding: 0 20px;
    margin-bottom: 24px;
}

.sidebar-title {
    font-size: 12px;
    color: var(--text-light);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
    padding-left: 4px;
}

.type-tabs {
    display: flex;
    gap: 6px;
}

.type-tab {
    flex: 1;
    padding: 10px 16px;
    border: 1px solid var(--border);
    background: white;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 13px;
    color: var(--text-light);
    transition: all var(--transition) ease;
    text-align: center;
}

.type-tab:hover { border-color: var(--primary); color: var(--primary); }
.type-tab.active { background: var(--primary); color: white; border-color: var(--primary); }

.level-nav, .scene-nav, .material-nav, .training-nav {
    list-style: none;
    padding: 0;
}

.level-nav li a,
.scene-nav li a,
.material-nav li a,
.training-nav li a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    color: var(--text);
    text-decoration: none;
    font-size: 13px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast) ease;
    margin-bottom: 2px;
}

.level-nav li a:hover,
.scene-nav li a:hover,
.material-nav li a:hover,
.training-nav li a:hover {
    background: var(--bg-secondary);
    color: var(--primary);
}

.level-link.active {
    background: rgba(52,152,219,0.08) !important;
    color: var(--primary) !important;
    font-weight: 600;
}

/* 主内容区 */
.listening-main {
    flex: 1;
    margin-left: 260px;
    padding: 32px;
    max-width: calc(100% - 260px);
}

/* 搜索栏 */
.search-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 24px;
}

.search-bar input {
    flex: 1;
    padding: 14px 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 15px;
    background: white;
    transition: all var(--transition-fast) ease;
    box-shadow: var(--shadow);
}

.search-bar input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(52,152,219,0.1);
}

.search-btn {
    padding: 14px 24px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 18px;
    transition: all var(--transition-fast) ease;
    box-shadow: var(--shadow);
}

.search-btn:hover { background: var(--secondary); transform: translateY(-1px); }

/* 内容头部 */
.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

#contentTitle {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
}

.sort-options {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-light);
}

.sort-btn {
    padding: 6px 14px;
    border: 1px solid var(--border);
    background: white;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 13px;
    color: var(--text-light);
    transition: all var(--transition-fast) ease;
}

.sort-btn:hover, .sort-btn.active { background: var(--primary); color: white; border-color: var(--primary); }

/* 推荐横幅 */
.listening-banner {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--radius);
    padding: 36px 40px;
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
}

.listening-banner::before {
    content: '';
    position: absolute;
    right: -40px;
    top: -40px;
    width: 180px;
    height: 180px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
}

.banner-content { position: relative; }
.banner-content h3 { color: white; font-size: 28px; margin-bottom: 10px; }
.banner-content p { color: rgba(255,255,255,0.9); font-size: 15px; margin-bottom: 16px; }

.listening-banner .btn-primary {
    background: white;
    color: var(--primary);
    border: none;
}
.listening-banner .btn-primary:hover { background: rgba(255,255,255,0.9); }

/* 听力列表 */
.listening-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.listening-item {
    display: flex;
    align-items: center;
    padding: 16px 20px;
    background: white;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: all var(--transition) ease;
    gap: 16px;
    text-decoration: none;
}

.listening-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
    transform: translateX(4px);
}

.item-play {
    flex-shrink: 0;
}

.play-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    border: none;
    font-size: 16px;
    cursor: pointer;
    transition: all var(--transition-fast) ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.play-btn:hover { background: var(--secondary); transform: scale(1.1); }

.item-info { flex: 1; min-width: 0; }
.item-info h4 { font-size: 15px; font-weight: 600; color: var(--primary); margin-bottom: 4px; }
.item-desc { font-size: 13px; color: var(--text-light); margin-bottom: 8px; line-height: 1.4; }

.item-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    color: var(--text-light);
    flex-wrap: wrap;
}

.level-tag {
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}

.level-tag.a1 { background: rgba(52,152,219,0.1); color: #3498db; }
.level-tag.b1 { background: rgba(243,156,18,0.1); color: #f39c12; }

.item-actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

.action-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: white;
    cursor: pointer;
    font-size: 14px;
    transition: all var(--transition-fast) ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.video-cover {
    width: 120px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
}

.video-thumbnail {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.video-thumbnail .play-icon { font-size: 28px; color: white; }
.video-thumbnail .video-duration { font-size: 11px; color: rgba(255,255,255,0.8); }

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    margin-top: 32px;
}

.page-btn {
    padding: 8px 14px;
    border: 1px solid var(--border);
    background: white;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 14px;
    color: var(--text);
    transition: all var(--transition-fast) ease;
}

.page-btn:hover:not(:disabled) { border-color: var(--primary); color: var(--primary); }
.page-btn.active { background: var(--primary); color: white; border-color: var(--primary); }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.page-ellipsis { color: var(--text-light); padding: 0 4px; }

/* 播放器 */
.audio-player {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    border-top: 1px solid var(--border);
    box-shadow: 0 -4px 20px rgba(0,0,0,0.06);
    z-index: 1000;
    padding: 10px 0;
}

.player-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    gap: 24px;
}

.player-info { width: 180px; min-width: 0; }
.player-title { font-size: 14px; font-weight: 600; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.player-level { font-size: 12px; color: var(--text-light); }

.player-controls { display: flex; align-items: center; gap: 12px; }
.control-btn { background: none; border: none; font-size: 18px; cursor: pointer; color: var(--text-light); transition: var(--transition-fast); }
.control-btn:hover { color: var(--primary); }

.control-btn.play-pause {
    width: 42px; height: 42px;
    background: var(--primary); color: white;
    border-radius: 50%; font-size: 16px;
    display: flex; align-items: center; justify-content: center;
}
.control-btn.play-pause:hover { background: var(--secondary); }

.player-progress { flex: 1; display: flex; align-items: center; gap: 10px; }
.time-current, .time-total { font-size: 12px; color: var(--text-light); min-width: 36px; }

.progress-bar {
    flex: 1; height: 4px;
    background: var(--border); border-radius: 2px;
    cursor: pointer; position: relative;
}
.progress-bar .progress-fill { height: 100%; width: 30%; background: var(--primary); border-radius: 2px; }

.player-options { display: flex; gap: 8px; }
.option-btn { padding: 6px 10px; border: 1px solid var(--border); background: white; border-radius: var(--radius-sm); cursor: pointer; font-size: 13px; color: var(--text-light); transition: var(--transition-fast); }
.option-btn:hover { background: var(--bg-secondary); border-color: var(--primary); }

.hidden { display: none !important; }

/* 响应式 */
@media (max-width: 1024px) {
    .listening-sidebar { width: 220px; }
    .listening-main { margin-left: 220px; max-width: calc(100% - 220px); }
}

@media (max-width: 768px) {
    .listening-sidebar { display: none; }
    .listening-main { margin-left: 0; max-width: 100%; padding: 16px; }
    .listening-banner { padding: 24px; }
    .listening-banner .banner-content h3 { font-size: 22px; }
    .listening-item { flex-wrap: wrap; }
    .item-actions { width: 100%; justify-content: flex-end; }
    .player-container { flex-wrap: wrap; gap: 12px; }
    .player-info { width: 100%; text-align: center; }
    .player-progress { order: 3; width: 100%; }
}