/* ========== 入门指南页面专用样式 ========== */
/* 版本: 1.0.0 | 栏目: 书法-入门指南 | 作者: 芦笛 */

/* ===== 页面头部变体 ===== */
.page-header-guide { min-height: 65vh; }

/* ===== 目录导航 ===== */
.guide-toc {
    position: sticky;
    top: 60px;
    z-index: 100;
    background: rgba(245, 240, 232, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(30, 30, 36, 0.06);
    padding: 12px 0;
    transition: box-shadow 0.3s ease;
}
.guide-toc.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.06); }
.guide-toc-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex;
    gap: 8px;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}
.guide-toc-container::-webkit-scrollbar { display: none; }
.toc-item {
    display: inline-block;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    color: var(--color-warm-gray);
    white-space: nowrap;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    text-decoration: none;
}
.toc-item:hover {
    color: var(--color-calligraphy-primary);
    background: rgba(123, 107, 131, 0.06);
}
.toc-item.active {
    color: white;
    background: var(--color-calligraphy-primary);
    border-color: var(--color-calligraphy-primary);
}

/* ===== 通用区块 ===== */
.guide-section {
    padding: var(--space-2xl) var(--space-md);
    background: var(--color-cream);
}
.guide-section-alt { background: white; }
.guide-container { max-width: 1200px; margin: 0 auto; }

/* ===== 入门须知 ===== */
.intro-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
    margin-top: var(--space-lg);
}
@media (max-width: 1024px) { .intro-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .intro-grid { grid-template-columns: 1fr; } }

.intro-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid rgba(30, 30, 36, 0.04);
    transition: var(--transition-normal);
}
.intro-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.intro-icon { font-size: 2rem; margin-bottom: var(--space-sm); }
.intro-card h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--space-xs);
    letter-spacing: 1px;
}
.intro-card p {
    font-size: 0.85rem;
    color: var(--color-warm-gray);
    line-height: 1.8;
    font-weight: 300;
}
.intro-wisdom {
    margin-top: var(--space-xl);
    text-align: center;
}
.intro-wisdom blockquote {
    font-family: var(--font-display);
    font-size: 1.3rem;
    color: var(--color-primary);
    font-style: italic;
    line-height: 1.8;
    max-width: 600px;
    margin: 0 auto;
}
.intro-wisdom cite {
    display: block;
    margin-top: var(--space-sm);
    font-size: 0.85rem;
    color: var(--color-warm-gray);
    font-style: normal;
}

/* ===== 文房四宝详情 ===== */
.tool-detail {
    margin-top: var(--space-xl);
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(30, 30, 36, 0.04);
}
.tool-detail-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: linear-gradient(135deg, var(--color-calligraphy-primary), var(--color-calligraphy-dark));
    color: white;
}
.tool-detail-num {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
}
.tool-detail-header h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: 2px;
    flex: 1;
}
.tool-detail-en {
    font-size: 0.75rem;
    opacity: 0.7;
    letter-spacing: 1px;
    text-transform: uppercase;
}
.tool-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    padding: var(--space-lg);
    align-items: start;
}
.tool-detail-grid-reverse { direction: rtl; }
.tool-detail-grid-reverse > * { direction: ltr; }
@media (max-width: 968px) {
    .tool-detail-grid, .tool-detail-grid-reverse {
        grid-template-columns: 1fr;
        direction: ltr;
    }
    .tool-detail-grid-reverse > * { direction: ltr; }
}
.tool-detail-content h4 {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-dark);
    margin: var(--space-md) 0 var(--space-xs);
    letter-spacing: 1px;
}
.tool-detail-content h4:first-child { margin-top: 0; }
.tool-detail-content p {
    font-size: 0.88rem;
    color: var(--color-warm-gray);
    line-height: 1.9;
    margin-bottom: var(--space-sm);
    font-weight: 300;
}
.tool-detail-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--color-cream);
    border-radius: var(--radius-md);
    padding: var(--space-md);
}
.tool-detail-visual canvas { max-width: 100%; height: auto; }
.canvas-caption {
    font-size: 0.75rem;
    color: var(--color-warm-gray);
    margin-top: var(--space-xs);
    font-weight: 300;
}

/* 对比表格 */
.tool-compare-table {
    overflow-x: auto;
    margin: var(--space-sm) 0;
}
.tool-compare-table table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
}
.tool-compare-table th,
.tool-compare-table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid rgba(30, 30, 36, 0.06);
}
.tool-compare-table th {
    background: var(--color-cream);
    font-weight: 600;
    color: var(--color-dark);
    font-size: 0.78rem;
    letter-spacing: 1px;
}
.tool-compare-table td {
    color: var(--color-warm-gray);
    font-weight: 300;
}
.tool-compare-table tr:hover td { background: rgba(123, 107, 131, 0.02); }

/* 提示列表 */
.tool-tip-list {
    list-style: none;
    padding: 0;
    margin: var(--space-xs) 0;
}
.tool-tip-list li {
    position: relative;
    padding-left: 18px;
    font-size: 0.85rem;
    color: var(--color-warm-gray);
    line-height: 1.9;
    margin-bottom: 6px;
    font-weight: 300;
}
.tool-tip-list li::before {
    content: '◆';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-size: 0.5rem;
    top: 2px;
}

/* 辅助工具网格 */
.accessory-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
    margin-top: var(--space-sm);
}
@media (max-width: 640px) { .accessory-grid { grid-template-columns: repeat(2, 1fr); } }
.accessory-item {
    background: var(--color-cream);
    border-radius: var(--radius-md);
    padding: var(--space-sm);
    text-align: center;
}
.accessory-icon { font-size: 1.5rem; display: block; margin-bottom: 4px; }
.accessory-name {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 2px;
}
.accessory-desc {
    display: block;
    font-size: 0.72rem;
    color: var(--color-warm-gray);
    font-weight: 300;
}

/* ===== 执笔姿势 ===== */
.posture-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: center;
    margin-top: var(--space-lg);
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid rgba(30, 30, 36, 0.04);
}
@media (max-width: 968px) { .posture-main { grid-template-columns: 1fr; } }
.posture-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--color-cream);
    border-radius: var(--radius-md);
    padding: var(--space-md);
}
.posture-visual canvas { max-width: 100%; height: auto; }
.posture-content h3 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--space-sm);
    letter-spacing: 2px;
}
.posture-content > p {
    font-size: 0.9rem;
    color: var(--color-warm-gray);
    line-height: 1.9;
    margin-bottom: var(--space-md);
    font-weight: 300;
}
.finger-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}
.finger-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: var(--space-sm);
    background: var(--color-cream);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-accent);
}
.finger-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-dark);
}
.finger-desc {
    font-size: 0.82rem;
    color: var(--color-warm-gray);
    line-height: 1.7;
    font-weight: 300;
}

/* 姿势提示卡片 */
.posture-tips-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin-top: var(--space-xl);
}
@media (max-width: 968px) { .posture-tips-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .posture-tips-grid { grid-template-columns: 1fr; } }
.posture-tip-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid rgba(30, 30, 36, 0.04);
    transition: var(--transition-normal);
}
.posture-tip-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.posture-tip-card h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--space-xs);
    letter-spacing: 1px;
}
.posture-tip-card p {
    font-size: 0.85rem;
    color: var(--color-warm-gray);
    line-height: 1.8;
    font-weight: 300;
}

/* 热身练习 */
.posture-warmup {
    margin-top: var(--space-xl);
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid rgba(30, 30, 36, 0.04);
}
.posture-warmup h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--space-sm);
    letter-spacing: 1px;
}
.posture-warmup > p {
    font-size: 0.88rem;
    color: var(--color-warm-gray);
    margin-bottom: var(--space-md);
    font-weight: 300;
}
.warmup-steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}
.warmup-step {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: var(--space-sm);
    background: var(--color-cream);
    border-radius: var(--radius-md);
}
.warmup-num {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-full);
    background: var(--color-calligraphy-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
    flex-shrink: 0;
}
.warmup-text {
    font-size: 0.85rem;
    color: var(--color-warm-gray);
    line-height: 1.7;
    font-weight: 300;
    padding-top: 3px;
}
.warmup-canvas-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--color-cream);
    border-radius: var(--radius-md);
    padding: var(--space-md);
}
.warmup-canvas-wrap canvas { max-width: 100%; height: auto; }

/* ===== 基本笔画 ===== */
.yongzi-intro {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--space-xl);
    align-items: start;
    margin-top: var(--space-lg);
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid rgba(30, 30, 36, 0.04);
}
@media (max-width: 968px) { .yongzi-intro { grid-template-columns: 1fr; } }
.yongzi-canvas-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--color-cream);
    border-radius: var(--radius-md);
    padding: var(--space-md);
}
.yongzi-canvas-wrap canvas { max-width: 100%; height: auto; }
.yongzi-content h3 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--space-sm);
    letter-spacing: 2px;
}
.yongzi-content > p {
    font-size: 0.9rem;
    color: var(--color-warm-gray);
    line-height: 1.9;
    margin-bottom: var(--space-md);
    font-weight: 300;
}
.yongzi-table-wrap { overflow-x: auto; }
.yongzi-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
}
.yongzi-table th,
.yongzi-table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid rgba(30, 30, 36, 0.06);
}
.yongzi-table th {
    background: var(--color-cream);
    font-weight: 600;
    color: var(--color-dark);
    font-size: 0.76rem;
    letter-spacing: 1px;
}
.yongzi-table td {
    color: var(--color-warm-gray);
    font-weight: 300;
}
.yongzi-table td:first-child {
    font-size: 1.2rem;
    color: var(--color-dark);
}
.yongzi-table tr:hover td { background: rgba(123, 107, 131, 0.02); }

/* 笔画卡片 */
.stroke-practice { margin-top: var(--space-xl); }
.stroke-practice > h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--space-md);
    letter-spacing: 2px;
    text-align: center;
}
.stroke-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}
@media (max-width: 1024px) { .stroke-cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .stroke-cards { grid-template-columns: 1fr; } }
.stroke-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(30, 30, 36, 0.04);
    transition: var(--transition-normal);
}
.stroke-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.stroke-card-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: var(--color-cream);
    border-bottom: 1px solid rgba(30, 30, 36, 0.04);
}
.stroke-demo {
    width: 60px;
    height: 60px;
    flex-shrink: 0;
    background: white;
    border-radius: var(--radius-md);
}
.stroke-card-title {
    display: flex;
    flex-direction: column;
}
.stroke-name {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-dark);
    letter-spacing: 1px;
}
.stroke-pinyin {
    font-size: 0.75rem;
    color: var(--color-warm-gray);
    font-weight: 300;
}
.stroke-card-body { padding: var(--space-md); }
.stroke-card-body p {
    font-size: 0.82rem;
    color: var(--color-warm-gray);
    line-height: 1.8;
    margin-bottom: 8px;
    font-weight: 300;
}
.stroke-card-body p:last-child { margin-bottom: 0; }
.stroke-card-body strong { color: var(--color-dark); font-weight: 600; }

/* 复合笔画 */
.stroke-common {
    margin-top: var(--space-xl);
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid rgba(30, 30, 36, 0.04);
}
.stroke-common h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--space-md);
    letter-spacing: 2px;
    text-align: center;
}
.common-strokes-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: var(--space-sm);
}
@media (max-width: 1024px) { .common-strokes-grid { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 640px) { .common-strokes-grid { grid-template-columns: repeat(2, 1fr); } }
.common-stroke-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: var(--space-sm);
    background: var(--color-cream);
    border-radius: var(--radius-md);
}
.common-stroke-item canvas { width: 60px; height: 60px; }
.common-stroke-item span {
    font-size: 0.8rem;
    color: var(--color-warm-gray);
    font-weight: 300;
}

/* ===== 选帖建议 ===== */
.copybook-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: start;
    margin-top: var(--space-lg);
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid rgba(30, 30, 36, 0.04);
}
@media (max-width: 968px) { .copybook-intro { grid-template-columns: 1fr; } }
.copybook-intro-content h3 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--space-md);
    letter-spacing: 2px;
}
.principle-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}
.principle-item {
    display: flex;
    gap: var(--space-sm);
    align-items: flex-start;
}
.principle-num {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-calligraphy-primary), var(--color-calligraphy-dark));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    flex-shrink: 0;
}
.principle-item div strong {
    font-size: 0.95rem;
    color: var(--color-dark);
    display: block;
    margin-bottom: 4px;
}
.principle-item div p {
    font-size: 0.85rem;
    color: var(--color-warm-gray);
    line-height: 1.8;
    font-weight: 300;
}
.copybook-intro-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--color-cream);
    border-radius: var(--radius-md);
    padding: var(--space-md);
}
.copybook-intro-visual canvas { max-width: 100%; height: auto; }

/* 碑帖推荐卡片 */
.copybook-recommend { margin-top: var(--space-xl); }
.copybook-recommend > h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--space-md);
    letter-spacing: 2px;
    text-align: center;
}
.copybook-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}
@media (max-width: 1024px) { .copybook-cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .copybook-cards { grid-template-columns: 1fr; } }
.copybook-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(30, 30, 36, 0.04);
    transition: var(--transition-normal);
}
.copybook-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.copybook-card-header {
    padding: var(--space-md);
    background: linear-gradient(135deg, var(--color-cream), white);
    border-bottom: 1px solid rgba(30, 30, 36, 0.04);
    position: relative;
}
.copybook-tag {
    display: inline-block;
    padding: 2px 10px;
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 500;
    margin-bottom: 8px;
}
.tag-recommend {
    background: rgba(197, 61, 67, 0.1);
    color: var(--color-seal-red);
}
.tag-beginner {
    background: rgba(123, 107, 131, 0.1);
    color: var(--color-calligraphy-primary);
}
.tag-extend {
    background: rgba(184, 160, 122, 0.15);
    color: var(--color-gold-ink);
}
.copybook-card-header h4 {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-dark);
    letter-spacing: 1px;
    margin-bottom: 4px;
}
.copybook-dynasty {
    font-size: 0.78rem;
    color: var(--color-warm-gray);
    font-weight: 300;
}
.copybook-card-body { padding: var(--space-md); }
.copybook-card-body p {
    font-size: 0.82rem;
    color: var(--color-warm-gray);
    line-height: 1.8;
    margin-bottom: 8px;
    font-weight: 300;
}
.copybook-card-body p:last-child { margin-bottom: 0; }
.copybook-card-body strong { color: var(--color-dark); font-weight: 600; }

/* 临帖方法 */
.copybook-method {
    margin-top: var(--space-xl);
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid rgba(30, 30, 36, 0.04);
}
.copybook-method > h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--space-md);
    letter-spacing: 2px;
    text-align: center;
}
.method-tabs {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}
.method-tab {
    padding: 8px 24px;
    border-radius: var(--radius-full);
    font-size: 0.88rem;
    color: var(--color-warm-gray);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid rgba(30, 30, 36, 0.08);
    background: white;
}
.method-tab:hover {
    color: var(--color-calligraphy-primary);
    border-color: var(--color-calligraphy-primary);
}
.method-tab.active {
    color: white;
    background: var(--color-calligraphy-primary);
    border-color: var(--color-calligraphy-primary);
}
.method-content {
    display: none;
    animation: fadeIn 0.4s ease;
}
.method-content.active { display: block; }
.method-content h4 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--space-sm);
    letter-spacing: 1px;
}
.method-content p {
    font-size: 0.88rem;
    color: var(--color-warm-gray);
    line-height: 1.9;
    margin-bottom: var(--space-sm);
    font-weight: 300;
}
.method-content ul {
    list-style: none;
    padding: 0;
    margin: var(--space-xs) 0;
}
.method-content ul li {
    position: relative;
    padding-left: 18px;
    font-size: 0.85rem;
    color: var(--color-warm-gray);
    line-height: 1.9;
    margin-bottom: 6px;
    font-weight: 300;
}
.method-content ul li::before {
    content: '◆';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-size: 0.5rem;
    top: 2px;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== 练习计划 ===== */
.practice-overview { margin-top: var(--space-lg); }
.practice-timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}
@media (max-width: 968px) { .practice-timeline { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .practice-timeline { grid-template-columns: 1fr; } }
.practice-phase {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
    border: 1px solid rgba(30, 30, 36, 0.04);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}
.practice-phase:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.practice-phase::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-calligraphy-light));
}
.phase-badge {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(123, 107, 131, 0.08);
    color: var(--color-calligraphy-primary);
    font-size: 0.75rem;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-sm);
    font-weight: 500;
}
.practice-phase h4 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 6px;
    letter-spacing: 1px;
}
.practice-phase p {
    font-size: 0.82rem;
    color: var(--color-warm-gray);
    line-height: 1.7;
    margin-bottom: var(--space-sm);
    font-weight: 300;
}
.phase-time {
    display: inline-block;
    padding: 2px 10px;
    background: var(--color-cream);
    color: var(--color-warm-gray);
    font-size: 0.75rem;
    border-radius: var(--radius-full);
}

/* 每日安排 */
.practice-daily {
    margin-top: var(--space-xl);
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid rgba(30, 30, 36, 0.04);
}
.practice-daily > h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--space-md);
    letter-spacing: 2px;
    text-align: center;
}
.daily-schedule {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}
.schedule-item {
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
    padding: var(--space-md);
    background: var(--color-cream);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-accent);
}
.schedule-time {
    width: 80px;
    flex-shrink: 0;
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-calligraphy-primary);
    padding-top: 2px;
}
.schedule-content h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 4px;
}
.schedule-content p {
    font-size: 0.85rem;
    color: var(--color-warm-gray);
    line-height: 1.7;
    font-weight: 300;
}

/* 每周计划表 */
.practice-weekly {
    margin-top: var(--space-xl);
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid rgba(30, 30, 36, 0.04);
}
.practice-weekly > h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--space-md);
    letter-spacing: 2px;
    text-align: center;
}
.weekly-table-wrap { overflow-x: auto; }
.weekly-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
}
.weekly-table th,
.weekly-table td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid rgba(30, 30, 36, 0.06);
}
.weekly-table th {
    background: var(--color-cream);
    font-weight: 600;
    color: var(--color-dark);
    font-size: 0.78rem;
    letter-spacing: 1px;
}
.weekly-table td {
    color: var(--color-warm-gray);
    font-weight: 300;
}
.weekly-table td:first-child {
    font-weight: 600;
    color: var(--color-dark);
}
.weekly-table tr:hover td { background: rgba(123, 107, 131, 0.02); }

/* 练习要诀 */
.practice-tips { margin-top: var(--space-xl); }
.practice-tips > h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--space-md);
    letter-spacing: 2px;
    text-align: center;
}
.tips-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}
@media (max-width: 968px) { .tips-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .tips-grid { grid-template-columns: 1fr; } }
.tip-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
    border: 1px solid rgba(30, 30, 36, 0.04);
    transition: var(--transition-normal);
}
.tip-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.tip-icon { font-size: 2rem; margin-bottom: var(--space-xs); }
.tip-card h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 6px;
    letter-spacing: 1px;
}
.tip-card p {
    font-size: 0.82rem;
    color: var(--color-warm-gray);
    line-height: 1.8;
    font-weight: 300;
}

/* ===== 常见问题 ===== */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
}
.faq-item {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(30, 30, 36, 0.04);
    transition: var(--transition-normal);
}
.faq-item:hover { box-shadow: var(--shadow-sm); }
.faq-item.active { box-shadow: var(--shadow-md); }
.faq-question {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    cursor: pointer;
    transition: background 0.2s ease;
}
.faq-question:hover { background: var(--color-cream); }
.faq-q {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-full);
    background: var(--color-calligraphy-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    flex-shrink: 0;
}
.faq-question > span:nth-child(2) {
    flex: 1;
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--color-dark);
}
.faq-toggle {
    font-size: 1.2rem;
    color: var(--color-warm-gray);
    transition: transform 0.3s ease;
    flex-shrink: 0;
    width: 24px;
    text-align: center;
}
.faq-item.active .faq-toggle { transform: rotate(45deg); }
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    padding: 0 var(--space-lg);
}
.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 var(--space-lg) var(--space-md);
}
.faq-answer p {
    font-size: 0.88rem;
    color: var(--color-warm-gray);
    line-height: 1.9;
    font-weight: 300;
}
.faq-answer strong { color: var(--color-dark); font-weight: 600; }

/* ===== 响应式补充 ===== */
@media (max-width: 768px) {
    .guide-toc { top: 50px; }
    .schedule-item {
        flex-direction: column;
        gap: var(--space-xs);
    }
    .schedule-time { width: auto; }
}