/* ========== 中国古典音乐页面专用样式 ========== */
/* 版本: 1.0.0 | 栏目: 音乐 > 中国古典音乐 | 作者: 芦笛 */

/* ===== 页面头部 ===== */
.chinese-header {
    position: relative;
    min-height: 65vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #3D4544, #5B6B6A, #4A5A59, #2D3A39);
    background-size: 400% 400%;
    animation: gradient-shift 15s ease infinite;
    overflow: hidden;
}

.chinese-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M50 50c0-5.5 4.5-10 10-10s10 4.5 10 10-4.5 10-10 10-10-4.5-10-10zM10 10c0-5.5 4.5-10 10-10s10 4.5 10 10-4.5 10-10 10-10-4.5-10-10z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.chinese-header::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 100px;
    background: var(--color-cream);
    clip-path: ellipse(70% 100% at 50% 100%);
}
.scripts-grid {grid-template-columns:repeat(2, 1fr);}

/* ===== 历史脉络区 ===== */
.timeline-section {
    padding: var(--space-2xl) var(--space-md);
    background: white;
}

.timeline-container {
    max-width: 1200px;
    margin: 0 auto;
}

.timeline-wrap {
    margin: var(--space-xl) auto;
    max-width: 1100px;
    overflow-x: auto;
}

.timeline-wrap canvas {
    width: 100%;
    max-width: 1100px;
    height: auto;
    display: block;
    margin: 0 auto;
}

.timeline-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

@media (max-width: 968px) {
    .timeline-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .timeline-cards {
        grid-template-columns: 1fr;
    }
}

.timeline-card {
    background: var(--color-cream);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid rgba(30, 30, 36, 0.04);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.timeline-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--color-accent), var(--color-music-light));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.timeline-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.timeline-card:hover::before {
    opacity: 1;
}

.timeline-era {
    display: inline-block;
    padding: 4px 14px;
    background: var(--color-primary);
    color: white;
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 2px;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-sm);
}

.timeline-card h4 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--space-xs);
    letter-spacing: 1px;
}

.timeline-card p {
    font-size: 0.85rem;
    color: var(--color-warm-gray);
    line-height: 1.85;
    font-weight: 300;
}

/* ===== 八音分类区 ===== */
.bayin-section {
    padding: var(--space-2xl) var(--space-md);
    background: linear-gradient(180deg, var(--color-cream) 0%, white 50%, var(--color-cream) 100%);
}

.bayin-container {
    max-width: 1200px;
    margin: 0 auto;
}

.bayin-wrap {
    margin: var(--space-xl) auto;
    max-width: 900px;
    overflow-x: auto;
}

.bayin-wrap canvas {
    width: 100%;
    max-width: 900px;
    height: auto;
    display: block;
    margin: 0 auto;
}

.bayin-detail {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

@media (max-width: 1024px) {
    .bayin-detail {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .bayin-detail {
        grid-template-columns: 1fr;
    }
}

.bayin-item {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid rgba(30, 30, 36, 0.04);
    transition: var(--transition-normal);
    text-align: center;
}

.bayin-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.bayin-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-music-light), var(--color-music-primary));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-sm);
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: white;
}

.bayin-item h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--space-xs);
    letter-spacing: 1px;
}

.bayin-item p {
    font-size: 0.8rem;
    color: var(--color-warm-gray);
    line-height: 1.8;
    font-weight: 300;
    text-align: left;
}

/* ===== 乐理体系区 ===== */
.theory-section {
    padding: var(--space-2xl) var(--space-md);
    background: white;
}

.theory-container {
    max-width: 1200px;
    margin: 0 auto;
}

.theory-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

@media (max-width: 968px) {
    .theory-grid {
        grid-template-columns: 1fr;
    }
}

.theory-card {
    background: var(--color-cream);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(30, 30, 36, 0.04);
    transition: var(--transition-normal);
}

.theory-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.theory-visual {
    background: linear-gradient(135deg, #E8F0EF, #D5E0DF);
    padding: var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 220px;
}

.theory-visual canvas {
    width: 100%;
    max-width: 500px;
    height: auto;
    display: block;
}

.theory-content {
    padding: var(--space-lg);
}

.theory-content h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--space-sm);
    letter-spacing: 2px;
}

.theory-content p {
    font-size: 0.88rem;
    color: var(--color-warm-gray);
    line-height: 1.85;
    margin-bottom: var(--space-sm);
    font-weight: 300;
}

.theory-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: var(--space-sm);
}

.theory-tags span {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(91, 123, 122, 0.08);
    color: var(--color-music-primary);
    font-size: 0.75rem;
    border-radius: var(--radius-full);
    font-weight: 500;
}

/* ===== 经典曲目赏析区 ===== */
.repertoire-section {
    padding: var(--space-2xl) var(--space-md);
    background: linear-gradient(180deg, var(--color-cream) 0%, white 50%, var(--color-cream) 100%);
}

.repertoire-container {
    max-width: 1200px;
    margin: 0 auto;
}

.repertoire-tabs {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin: var(--space-lg) 0 var(--space-md);
}

.tab-btn {
    padding: 0.6rem 1.8rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-warm-gray);
    background: white;
    border: 1.5px solid rgba(30, 30, 36, 0.08);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition-fast);
    letter-spacing: 1px;
}

.tab-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-primary);
}

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

.repertoire-panels {
    min-height: 200px;
}

.tab-panel {
    display: none;
    animation: fadeInUp 0.5s ease;
}

.tab-panel.active {
    display: block;
}

.piece-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
    border: 1px solid rgba(30, 30, 36, 0.04);
    transition: var(--transition-normal);
    border-left: 3px solid transparent;
}

.piece-card:hover {
    border-left-color: var(--color-accent);
    box-shadow: var(--shadow-sm);
    transform: translateX(4px);
}

.piece-info h4 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 4px;
    letter-spacing: 1px;
}

.piece-tag {
    display: inline-block;
    padding: 2px 10px;
    background: rgba(91, 123, 122, 0.08);
    color: var(--color-music-primary);
    font-size: 0.75rem;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-sm);
    font-weight: 500;
}

.piece-info p {
    font-size: 0.88rem;
    color: var(--color-warm-gray);
    line-height: 1.85;
    font-weight: 300;
}

/* ===== 名家介绍区 ===== */
.masters-section {
    padding: var(--space-2xl) var(--space-md);
    background: white;
}

.masters-container {
    max-width: 1200px;
    margin: 0 auto;
}

.masters-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

@media (max-width: 968px) {
    .masters-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .masters-grid {
        grid-template-columns: 1fr;
    }
}

.master-card {
    background: var(--color-cream);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid rgba(30, 30, 36, 0.04);
    transition: var(--transition-normal);
    text-align: center;
}

.master-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.master-avatar {
    width: 100px;
    height: 100px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, #E8F0EF, #D5E0DF);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-sm);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.master-avatar canvas {
    width: 100%;
    height: 100%;
}

.master-info h4 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 2px;
    letter-spacing: 1px;
}

.master-era {
    display: inline-block;
    padding: 2px 10px;
    background: rgba(91, 123, 122, 0.08);
    color: var(--color-music-primary);
    font-size: 0.75rem;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-sm);
    font-weight: 500;
}

.master-info p {
    font-size: 0.85rem;
    color: var(--color-warm-gray);
    line-height: 1.85;
    font-weight: 300;
    text-align: left;
}

/* ===== CTA 区复用 music-cta ===== */

/* ===== 动画 ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== 响应式补充 ===== */
@media (max-width: 768px) {
    .timeline-wrap canvas,
    .bayin-wrap canvas {
        min-width: 600px;
    }

    .theory-visual {
        min-height: 180px;
    }

    .repertoire-tabs {
        gap: var(--space-xs);
    }

    .tab-btn {
        padding: 0.5rem 1.2rem;
        font-size: 0.85rem;
    }
}