/* 博客文章详情页 · 全新设计（配合 theme-light） */

.article-detail-page {
    --article-max: 42rem;
}

.article-detail-page main {
    padding-top: 5.5rem;
    padding-bottom: 4rem;
}

.article-detail-page .article-outer {
    max-width: 52rem;
    margin: 0 auto;
    padding: 0 1.25rem;
}

@media (min-width: 768px) {
    .article-detail-page .article-outer {
        padding: 0 2rem;
    }
}

/* 面包屑导航 */
.article-detail-page .article-breadcrumb {
    margin-bottom: 1.5rem;
}

.article-detail-page .article-breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem 0.5rem;
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 0.8125rem;
}

.article-detail-page .article-breadcrumb a {
    color: var(--apple-text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.article-detail-page .article-breadcrumb a:hover {
    color: var(--apple-blue);
}

.article-detail-page .article-breadcrumb-sep {
    color: var(--apple-border);
    margin: 0 0.15rem;
}

.article-detail-page .article-breadcrumb-current {
    color: var(--apple-text-tertiary);
    max-width: 12em;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 返回链接（页脚） */
.article-detail-page .article-back {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--apple-text-secondary);
    text-decoration: none;
    margin-bottom: 1.5rem;
    transition: color 0.2s;
}

.article-detail-page .article-back:hover {
    color: var(--apple-blue);
}

/* 文章头部 */
.article-detail-page .article-head {
    margin-bottom: 2.5rem;
    max-width: var(--article-max);
}

.article-detail-page .article-title {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 600;
    letter-spacing: -0.028em;
    line-height: 1.2;
    color: var(--apple-text);
    margin: 0 0 0.75rem 0;
}

.article-detail-page .article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem 1.25rem;
    font-size: 0.8125rem;
    color: var(--apple-text-tertiary);
}

.article-detail-page .article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

/* 正文区 */
.article-detail-page .article-content {
    max-width: var(--article-max);
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--apple-text);
}

.article-detail-page .article-content > * + * {
    margin-top: 1.5rem;
}

.article-detail-page .article-content p {
    margin: 0;
}

.article-detail-page .article-content p + p {
    margin-top: 1rem;
}

.article-detail-page .article-content strong {
    font-weight: 600;
    color: var(--apple-text);
}

.article-detail-page .article-content a {
    color: var(--apple-blue);
    text-decoration: none;
}

.article-detail-page .article-content a:hover {
    text-decoration: underline;
}

/* 引言 */
.article-detail-page .article-lead {
    padding: 1.25rem 1.5rem;
    border-left: 4px solid var(--apple-blue);
    background: var(--apple-bg-section);
    border-radius: 0 10px 10px 0;
    margin: 2rem 0;
}

.article-detail-page .article-lead p {
    margin: 0;
    font-size: 1.0625rem;
    line-height: 1.65;
    color: var(--apple-text-secondary);
}

/* 标题层级 */
.article-detail-page .article-content h2 {
    font-family: var(--font-heading);
    font-size: 1.375rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--apple-text);
    margin: 2.25rem 0 0.75rem 0;
}

.article-detail-page .article-content h2:first-child {
    margin-top: 0;
}

.article-detail-page .article-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--apple-text);
    margin: 1.75rem 0 0.5rem 0;
}

/* 信息卡片网格 */
.article-detail-page .article-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    margin: 1.25rem 0;
}

@media (min-width: 560px) {
    .article-detail-page .article-cards {
        grid-template-columns: 1fr 1fr;
    }
}

.article-detail-page .article-card {
    display: flex;
    align-items: flex-start;
    gap: 0.875rem;
    padding: 1.125rem;
    background: var(--apple-card);
    border-radius: 12px;
    border: 1px solid var(--apple-border);
    box-shadow: var(--apple-shadow);
}

.article-detail-page .article-card-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.article-detail-page .article-card-icon.blue {
    background: rgba(10, 110, 217, 0.1);
    color: var(--apple-blue);
}

.article-detail-page .article-card-icon.neutral {
    background: var(--apple-bg-section);
    color: var(--apple-text-secondary);
}

.article-detail-page .article-card h4 {
    margin: 0 0 0.25rem 0;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--apple-text);
}

.article-detail-page .article-card p {
    margin: 0;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--apple-text-secondary);
}

/* 表格 */
.article-detail-page .article-table-wrap {
    overflow-x: auto;
    margin: 1.25rem 0;
}

.article-detail-page .article-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9375rem;
    background: var(--apple-card);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--apple-border);
    box-shadow: var(--apple-shadow);
}

.article-detail-page .article-table th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--apple-text-secondary);
    background: var(--apple-bg-section);
    border-bottom: 1px solid var(--apple-border);
}

.article-detail-page .article-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--apple-border);
    color: var(--apple-text);
}

.article-detail-page .article-table tr:last-child td {
    border-bottom: none;
}

.article-detail-page .article-table .cell-highlight {
    color: var(--apple-blue);
    font-weight: 600;
}

/* 提示条 */
.article-detail-page .article-tip {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    background: rgba(10, 110, 217, 0.06);
    border: 1px solid rgba(10, 110, 217, 0.15);
    border-radius: 10px;
    margin: 1.25rem 0;
}

.article-detail-page .article-tip-icon {
    flex-shrink: 0;
    width: 1.25rem;
    height: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--apple-blue);
    font-size: 0.875rem;
}

.article-detail-page .article-tip span {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--apple-text);
}

/* 对比两栏 */
.article-detail-page .article-compare {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    margin: 1.5rem 0;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--apple-border);
    background: var(--apple-card);
    box-shadow: var(--apple-shadow);
}

@media (max-width: 559px) {
    .article-detail-page .article-compare {
        grid-template-columns: 1fr;
    }
}

.article-detail-page .article-compare-col {
    padding: 1.25rem 1.25rem;
}

.article-detail-page .article-compare-col + .article-compare-col {
    border-left: 1px solid var(--apple-border);
}

@media (max-width: 559px) {
    .article-detail-page .article-compare-col + .article-compare-col {
        border-left: none;
        border-top: 1px solid var(--apple-border);
    }
}

.article-detail-page .article-compare-col h4 {
    margin: 0 0 0.5rem 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--apple-text);
}

.article-detail-page .article-compare-col h4.accent {
    color: var(--apple-blue);
}

.article-detail-page .article-compare-col p {
    margin: 0;
    font-size: 0.9375rem;
    line-height: 1.55;
    color: var(--apple-text-secondary);
}

/* CTA 区块 */
.article-detail-page .article-cta {
    margin-top: 2.5rem;
    padding: 1.75rem 1.5rem;
    text-align: center;
    background: var(--apple-bg-section);
    border-radius: 14px;
    border: 1px solid var(--apple-border);
}

.article-detail-page .article-cta-tag {
    display: block;
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--apple-text-tertiary);
    margin-bottom: 0.5rem;
}

.article-detail-page .article-cta h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--apple-text);
    margin: 0 0 0.35rem 0;
}

.article-detail-page .article-cta-desc {
    font-size: 0.9375rem;
    color: var(--apple-text-secondary);
    margin: 0 auto 1rem;
    max-width: 32ch;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.article-detail-page .article-cta-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
}

.article-detail-page .article-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.65rem 1.25rem;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    transition: opacity 0.2s, transform 0.2s, box-shadow 0.2s;
}

.article-detail-page .article-cta-btn.primary {
    background: var(--brand-gradient);
    color: #fff;
    box-shadow: 0 2px 12px var(--brand-glow);
}

.article-detail-page .article-cta-btn.primary:hover {
    opacity: 0.95;
    transform: translateY(-1px);
    color: #fff;
}

.article-detail-page .article-cta-btn.secondary {
    background: var(--apple-card);
    color: var(--apple-blue);
    border: 1px solid var(--apple-border);
}

.article-detail-page .article-cta-btn.secondary:hover {
    background: var(--apple-bg-soft);
    border-color: var(--apple-blue);
}

/* 底部返回 */
.article-detail-page .article-footer-link {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--apple-border);
}

/* 底部购买浮窗：为固定栏留出空间，避免遮挡 footer 邮箱 */
.article-detail-page #site-footer-root {
    padding-bottom: 5rem; /* 与浮窗高度相当，保证 footer 底部内容在浮窗上方可见 */
}

.article-detail-page .article-purchase-float {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 90;
    padding: 0.75rem 1rem;
    background: var(--apple-card);
    border-top: 1px solid var(--apple-border);
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.08);
}

.article-detail-page .article-purchase-float-inner {
    max-width: 52rem;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.article-detail-page .article-purchase-float-text {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.article-detail-page .article-purchase-float-label {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--apple-text-tertiary);
}

.article-detail-page .article-purchase-float-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--apple-text);
}

.article-detail-page .article-purchase-float-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 1.25rem;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    background: var(--brand-gradient);
    color: #fff;
    box-shadow: 0 2px 12px var(--brand-glow);
    transition: opacity 0.2s, transform 0.2s, box-shadow 0.2s;
}

.article-detail-page .article-purchase-float-btn:hover {
    opacity: 0.95;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px var(--brand-glow);
    color: #fff;
}

@media (max-width: 767px) {
    .article-detail-page main {
        padding-top: 4.5rem;
        padding-bottom: 5rem;
    }
    .article-detail-page .article-cta {
        padding: 1.25rem 1rem;
    }
    .article-detail-page .article-purchase-float {
        padding: 0.6rem 1rem;
    }
    .article-detail-page .article-purchase-float-inner {
        justify-content: center;
        text-align: center;
    }
    .article-detail-page .article-purchase-float-text {
        align-items: center;
    }
    .article-detail-page .article-purchase-float-btn {
        width: 100%;
        justify-content: center;
    }
}