/* ========== 高段精进页面专用样式 ========== */
/* 版本: 1.0.0 | 栏目: 围棋-高段精进 | 作者: 芦笛 */

/* ===== 死活题区块 ===== */
.tsumego-section {
    padding: var(--space-2xl) var(--space-md);
    background: white;
}

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

.tsumego-intro {
    max-width: 800px;
    margin: 0 auto var(--space-xl);
    text-align: center;
}

.tsumego-intro h3 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    color: var(--color-dark);
    margin-bottom: var(--space-sm);
    letter-spacing: 2px;
}

.tsumego-intro p {
    font-size: 0.95rem;
    color: var(--color-warm-gray);
    line-height: 2;
    font-weight: 300;
    margin-bottom: var(--space-sm);
}

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

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

.tsumego-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);
}

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

.tsumego-canvas-wrap {
    position: relative;
    aspect-ratio: 1/1;
    background: var(--color-board);
    overflow: hidden;
}

.tsumego-canvas-wrap canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.tsumego-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(30, 30, 36, 0.3);
    opacity: 0;
    transition: var(--transition-fast);
}

.tsumego-canvas-wrap:hover .tsumego-overlay {
    opacity: 1;
}

.tsumego-solution-btn {
    padding: 0.7rem 1.8rem;
    background: var(--color-accent);
    color: var(--color-dark);
    border: none;
    border-radius: var(--radius-full);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    letter-spacing: 1px;
}

.tsumego-solution-btn:hover {
    background: #b89a6a;
    transform: scale(1.05);
}

.tsumego-info {
    padding: var(--space-md);
}

.tsumego-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xs);
}

.tsumego-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.tag-kill { background: rgba(231, 76, 60, 0.12); color: #C0392B; }
.tag-ko { background: rgba(230, 126, 34, 0.12); color: #D35400; }
.tag-alive { background: rgba(46, 204, 113, 0.12); color: #27AE60; }

.tsumego-difficulty {
    font-size: 0.85rem;
    color: var(--color-accent);
    letter-spacing: 2px;
}

.tsumego-name {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.tsumego-desc {
    font-size: 0.85rem;
    color: var(--color-warm-gray);
    line-height: 1.8;
    font-weight: 300;
    margin-bottom: var(--space-sm);
}

.tsumego-key {
    background: rgba(90, 109, 123, 0.06);
    border-left: 3px solid var(--color-go-primary);
    padding: var(--space-sm);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 0.82rem;
    color: var(--color-warm-gray);
    line-height: 1.7;
    margin-bottom: var(--space-sm);
}

.tsumego-key strong {
    color: var(--color-dark);
}

.tsumego-meta {
    display: flex;
    gap: var(--space-sm);
    font-size: 0.78rem;
    color: var(--color-warm-gray);
    opacity: 0.8;
}

.tsumego-tip {
    display: flex;
    gap: var(--space-md);
    background: linear-gradient(135deg, rgba(90, 109, 123, 0.06), rgba(196, 167, 125, 0.06));
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-top: var(--space-xl);
    border: 1px solid rgba(30, 30, 36, 0.04);
}

.tip-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.tip-content h4 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: var(--color-dark);
    margin-bottom: 6px;
    letter-spacing: 1px;
}

.tip-content p {
    font-size: 0.88rem;
    color: var(--color-warm-gray);
    line-height: 1.8;
    font-weight: 300;
}

@media (max-width: 640px) {
    .tsumego-tip {
        flex-direction: column;
        text-align: center;
    }
}

/* ===== 定式区块 ===== */
.joseki-section {
    padding: var(--space-2xl) var(--space-md);
    background: var(--color-cream);
}

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

.joseki-intro {
    max-width: 800px;
    margin: 0 auto var(--space-xl);
    text-align: center;
}

.joseki-intro h3 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    color: var(--color-dark);
    margin-bottom: var(--space-sm);
    letter-spacing: 2px;
}

.joseki-intro p {
    font-size: 0.95rem;
    color: var(--color-warm-gray);
    line-height: 2;
    font-weight: 300;
    margin-bottom: var(--space-sm);
}

.joseki-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    margin-top: var(--space-lg);
}

.joseki-item {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(30, 30, 36, 0.04);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.joseki-item:hover {
    box-shadow: var(--shadow-lg);
}

.joseki-main {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 0;
}

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

.joseki-canvas-wrap {
    position: relative;
    background: var(--color-board);
    aspect-ratio: 1/1;
    min-height: 300px;
}

.joseki-canvas-wrap canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.joseki-nav {
    position: absolute;
    bottom: var(--space-sm);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 6px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    padding: 6px;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-sm);
}

.joseki-step-btn {
    padding: 4px 12px;
    background: transparent;
    border: none;
    border-radius: var(--radius-full);
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--color-warm-gray);
    cursor: pointer;
    transition: var(--transition-fast);
    white-space: nowrap;
}

.joseki-step-btn.active,
.joseki-step-btn:hover {
    background: var(--color-go-primary);
    color: white;
}

.joseki-detail {
    padding: var(--space-lg);
}

.joseki-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.joseki-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.tag-major { background: rgba(192, 57, 43, 0.1); color: #C0392B; }
.tag-standard { background: rgba(52, 152, 219, 0.1); color: #2980B9; }
.tag-battle { background: rgba(155, 89, 182, 0.1); color: #8E44AD; }
.tag-ai { background: rgba(46, 204, 113, 0.1); color: #27AE60; }

.joseki-difficulty {
    font-size: 0.8rem;
    color: var(--color-warm-gray);
}

.joseki-name {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--space-sm);
    letter-spacing: 2px;
}

.joseki-desc {
    font-size: 0.9rem;
    color: var(--color-warm-gray);
    line-height: 1.9;
    font-weight: 300;
    margin-bottom: var(--space-md);
}

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

.joseki-points ul {
    list-style: none;
    padding: 0;
}

.joseki-points li {
    font-size: 0.85rem;
    color: var(--color-warm-gray);
    line-height: 1.8;
    font-weight: 300;
    margin-bottom: 8px;
    padding-left: 1.2rem;
    position: relative;
}

.joseki-points li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

.joseki-points li strong {
    color: var(--color-dark);
    font-weight: 600;
}

.joseki-classic {
    margin-top: var(--space-md);
    padding: var(--space-sm);
    background: rgba(196, 167, 125, 0.08);
    border-radius: var(--radius-md);
    font-size: 0.82rem;
    color: var(--color-warm-gray);
    line-height: 1.7;
    border-left: 3px solid var(--color-accent);
}

.joseki-classic strong {
    color: var(--color-dark);
}

/* ===== 中盘战略区块 ===== */
.strategy-section {
    padding: var(--space-2xl) var(--space-md);
    background: white;
}

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

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

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

.strategy-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);
}

.strategy-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
}

.strategy-icon {
    font-size: 2.2rem;
    margin-bottom: var(--space-sm);
}

.strategy-name {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--space-sm);
    letter-spacing: 2px;
}

.strategy-desc {
    font-size: 0.88rem;
    color: var(--color-warm-gray);
    line-height: 1.9;
    font-weight: 300;
    margin-bottom: var(--space-md);
}

.strategy-detail h4 {
    font-family: var(--font-display);
    font-size: 0.95rem;
    color: var(--color-dark);
    margin-bottom: var(--space-xs);
    letter-spacing: 1px;
}

.strategy-detail ol {
    padding-left: 1.2rem;
    margin-bottom: var(--space-sm);
}

.strategy-detail li {
    font-size: 0.82rem;
    color: var(--color-warm-gray);
    line-height: 1.8;
    font-weight: 300;
    margin-bottom: 6px;
}

.strategy-detail li strong {
    color: var(--color-dark);
    font-weight: 600;
}

.strategy-detail p {
    font-size: 0.82rem;
    color: var(--color-warm-gray);
    line-height: 1.8;
    font-weight: 300;
}

/* ===== AI新下法区块 ===== */
.ai-section {
    padding: var(--space-2xl) var(--space-md);
    background: linear-gradient(180deg, var(--color-cream) 0%, white 50%, var(--color-cream) 100%);
}

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

.ai-intro {
    max-width: 800px;
    margin: 0 auto var(--space-xl);
    text-align: center;
}

.ai-intro h3 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    color: var(--color-dark);
    margin-bottom: var(--space-sm);
    letter-spacing: 2px;
}

.ai-intro p {
    font-size: 0.95rem;
    color: var(--color-warm-gray);
    line-height: 2;
    font-weight: 300;
    margin-bottom: var(--space-sm);
}

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

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

.ai-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(30, 30, 36, 0.04);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

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

.ai-canvas-wrap {
    position: relative;
    aspect-ratio: 1/1;
    background: var(--color-board);
    overflow: hidden;
}

.ai-canvas-wrap canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.ai-info {
    padding: var(--space-md);
}

.ai-tag {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(46, 204, 113, 0.1);
    color: #27AE60;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    letter-spacing: 0.5px;
}

.ai-name {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.ai-desc {
    font-size: 0.85rem;
    color: var(--color-warm-gray);
    line-height: 1.8;
    font-weight: 300;
    margin-bottom: var(--space-sm);
}

.ai-detail {
    font-size: 0.82rem;
    color: var(--color-warm-gray);
    line-height: 1.7;
    font-weight: 300;
    margin-bottom: var(--space-sm);
}

.ai-meta {
    display: flex;
    gap: var(--space-sm);
    font-size: 0.78rem;
    color: var(--color-warm-gray);
    opacity: 0.8;
}

/* ===== 名局精解区块 ===== */
.masterpiece-section {
    padding: var(--space-2xl) var(--space-md);
    background: white;
}

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

.masterpiece-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    margin-top: var(--space-lg);
}

.masterpiece-item {
    background: var(--color-cream);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(30, 30, 36, 0.04);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.masterpiece-item:hover {
    box-shadow: var(--shadow-lg);
}

.masterpiece-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 0;
}

.masterpiece-layout.reverse {
    grid-template-columns: 1.2fr 1fr;
}

@media (max-width: 968px) {
    .masterpiece-layout,
    .masterpiece-layout.reverse {
        grid-template-columns: 1fr;
    }
}

.masterpiece-canvas-wrap {
    position: relative;
    background: var(--color-board);
    aspect-ratio: 1/1;
    min-height: 300px;
    overflow: hidden;
}

.masterpiece-canvas-wrap canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.masterpiece-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-sm);
    background: linear-gradient(transparent, rgba(30,30,36,0.6));
    color: white;
    font-size: 0.8rem;
    text-align: center;
    font-weight: 300;
}

.masterpiece-content {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.masterpiece-meta {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-xs);
}

.masterpiece-tag {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(90, 109, 123, 0.1);
    color: var(--color-go-primary);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.masterpiece-year {
    font-size: 0.8rem;
    color: var(--color-warm-gray);
    font-weight: 300;
}

.masterpiece-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--space-sm);
    letter-spacing: 2px;
}

.masterpiece-desc {
    font-size: 0.9rem;
    color: var(--color-warm-gray);
    line-height: 1.9;
    font-weight: 300;
    margin-bottom: var(--space-sm);
}

.masterpiece-detail {
    font-size: 0.88rem;
    color: var(--color-warm-gray);
    line-height: 1.9;
    font-weight: 300;
    margin-bottom: var(--space-md);
}

.masterpiece-highlight h4 {
    font-family: var(--font-display);
    font-size: 0.95rem;
    color: var(--color-dark);
    margin-bottom: var(--space-xs);
    letter-spacing: 1px;
}

.masterpiece-highlight ul {
    list-style: none;
    padding: 0;
    margin-bottom: var(--space-md);
}

.masterpiece-highlight li {
    font-size: 0.82rem;
    color: var(--color-warm-gray);
    line-height: 1.8;
    font-weight: 300;
    margin-bottom: 6px;
    padding-left: 1.2rem;
    position: relative;
}

.masterpiece-highlight li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

.masterpiece-quote {
    margin-top: auto;
    padding: var(--space-sm);
    background: rgba(196, 167, 125, 0.08);
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-size: 0.9rem;
    color: var(--color-primary);
    font-style: italic;
    line-height: 1.7;
    border-left: 3px solid var(--color-accent);
}

.masterpiece-quote cite {
    display: block;
    margin-top: 4px;
    font-size: 0.78rem;
    color: var(--color-warm-gray);
    font-style: normal;
    font-family: var(--font-body);
}

/* ===== 训练方法区块 ===== */
.training-section {
    padding: var(--space-2xl) var(--space-md);
    background: var(--color-cream);
}

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

.training-content {
    margin-top: var(--space-lg);
}

.training-schedule {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-xl);
    border: 1px solid rgba(30, 30, 36, 0.04);
    box-shadow: var(--shadow-sm);
}

.training-schedule h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: var(--color-dark);
    margin-bottom: var(--space-md);
    letter-spacing: 2px;
    text-align: center;
}

.schedule-table-wrap {
    overflow-x: auto;
    margin-bottom: var(--space-md);
}

.schedule-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.schedule-table th {
    background: var(--color-go-primary);
    color: white;
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    letter-spacing: 1px;
    font-size: 0.8rem;
}

.schedule-table th:first-child {
    border-radius: var(--radius-sm) 0 0 0;
}

.schedule-table th:last-child {
    border-radius: 0 var(--radius-sm) 0 0;
}

.schedule-table td {
    padding: 12px 16px;
    border-bottom: 1px solid rgba(30, 30, 36, 0.04);
    color: var(--color-warm-gray);
    line-height: 1.6;
    font-weight: 300;
}

.schedule-table tr:hover td {
    background: rgba(90, 109, 123, 0.03);
}

.schedule-table td:first-child {
    font-weight: 600;
    color: var(--color-dark);
    white-space: nowrap;
}

.schedule-note {
    text-align: center;
    font-size: 0.85rem;
    color: var(--color-warm-gray);
    font-weight: 300;
    line-height: 1.7;
}

.schedule-note strong {
    color: var(--color-dark);
}

.training-methods h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    color: var(--color-dark);
    margin-bottom: var(--space-lg);
    letter-spacing: 2px;
    text-align: center;
}

.methods-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

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

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

.method-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid rgba(30, 30, 36, 0.04);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

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

.method-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-go-light));
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-normal);
}

.method-card:hover::before {
    transform: scaleX(1);
}

.method-num {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 900;
    color: rgba(90, 109, 123, 0.1);
    line-height: 1;
    margin-bottom: var(--space-xs);
}

.method-name {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--space-sm);
    letter-spacing: 1px;
}

.method-desc {
    font-size: 0.85rem;
    color: var(--color-warm-gray);
    line-height: 1.8;
    font-weight: 300;
    margin-bottom: var(--space-sm);
}

.method-tips {
    font-size: 0.8rem;
    color: var(--color-warm-gray);
    line-height: 1.7;
}

.method-tips strong {
    color: var(--color-dark);
    font-size: 0.82rem;
}

.method-tips ul {
    padding-left: 1rem;
    margin-top: 4px;
}

.method-tips li {
    margin-bottom: 4px;
    font-weight: 300;
}

/* ===== 资源推荐区块 ===== */
.resources-section {
    padding: var(--space-2xl) var(--space-md);
    background: white;
}

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

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

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

.resources-col {
    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);
}

.resources-col:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
}

.resources-col-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid rgba(30, 30, 36, 0.06);
}

.resources-icon {
    font-size: 1.6rem;
}

.resources-col-header h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-dark);
    letter-spacing: 1px;
}

.resources-list {
    list-style: none;
    padding: 0;
}

.resource-item {
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid rgba(30, 30, 36, 0.04);
}

.resource-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.resource-item strong {
    display: block;
    font-size: 0.9rem;
    color: var(--color-dark);
    margin-bottom: 4px;
    font-weight: 600;
}

.resource-item span {
    font-size: 0.82rem;
    color: var(--color-warm-gray);
    line-height: 1.7;
    font-weight: 300;
}

/* ===== 响应式补充 ===== */
@media (max-width: 768px) {
    .schedule-table th,
    .schedule-table td {
        padding: 8px 10px;
        font-size: 0.78rem;
    }

    .masterpiece-title {
        font-size: 1.2rem;
    }

    .joseki-name {
        font-size: 1.2rem;
    }

    .tsumego-grid {
        gap: var(--space-md);
    }

    .ai-grid {
        gap: var(--space-md);
    }

    .strategy-grid {
        gap: var(--space-md);
    }
}


/* ===== Canvas 尺寸修复：CSS控制显示尺寸，JS只控制内部像素分辨率 ===== */
.tsumego-canvas-wrap canvas,
.joseki-canvas-wrap canvas,
.ai-canvas-wrap canvas,
.masterpiece-canvas-wrap canvas,
.overview-visual canvas {
    width: 100% !important;
    height: 100% !important;
}