/* ============================================================
   博客页面样式（与主页「浅色简洁」主题统一）
   ============================================================ */

.blog-container {
    max-width: 860px;
    margin: 0 auto;
    padding: 24px 20px 72px;
}

/* ========== 顶栏 ========== */

.blog-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
}

.blog-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary-deep);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.88rem;
    padding: 8px 16px;
    border-radius: 100px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow-soft);
    transition: background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.blog-back::before {
    content: '←';
    font-size: 0.95rem;
    line-height: 1;
}

.blog-back:hover {
    text-decoration: none;
    background: var(--primary-soft);
    border-color: var(--primary-border);
}

.blog-site-name {
    color: var(--text-faint);
    font-weight: 500;
    font-family: var(--font-cn);
    letter-spacing: 2px;
}

/* ========== 列表视图 ========== */

.blog-list-title {
    font-size: 1.4rem;
    font-weight: 700;
    font-family: var(--font-cn);
    color: var(--text-main);
    margin: 0;
}

.blog-search {
    width: 240px;
    padding: 10px 16px;
    border: 1px solid var(--card-border);
    border-radius: 100px;
    background: var(--card-bg);
    font-size: 0.9rem;
    color: var(--text-main);
    outline: none;
    box-shadow: var(--shadow-soft);
    transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.blog-search:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12);
}

.blog-search::placeholder {
    color: var(--text-faint);
}

/* 列表网格 */
.blog-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

/* 杂志式纵向卡片 */
.blog-card {
    display: flex;
    flex-direction: column;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    text-decoration: none;
    animation: card-in 0.5s var(--ease) backwards;
    transition:
        transform 0.3s var(--ease),
        border-color 0.3s var(--ease),
        box-shadow 0.3s var(--ease);
}

.blog-card:nth-child(1) { animation-delay: 0.04s; }
.blog-card:nth-child(2) { animation-delay: 0.08s; }
.blog-card:nth-child(3) { animation-delay: 0.12s; }
.blog-card:nth-child(4) { animation-delay: 0.16s; }
.blog-card:nth-child(5) { animation-delay: 0.2s; }
.blog-card:nth-child(6) { animation-delay: 0.24s; }
.blog-card:nth-child(7) { animation-delay: 0.28s; }
.blog-card:nth-child(8) { animation-delay: 0.32s; }
.blog-card:nth-child(9) { animation-delay: 0.36s; }
.blog-card:nth-child(10) { animation-delay: 0.4s; }

.blog-card:hover {
    transform: translateY(-4px);
    border-color: var(--card-border-strong);
    box-shadow: var(--shadow-hover);
}

.blog-card-main {
    flex: 1;
    min-width: 0;
    padding: 16px 20px 8px;
}

/* 封面（16:9 置顶，无封面时的纯色占位） */
.blog-card-cover {
    width: 100%;
    height: 170px;
    border-radius: 0;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--primary-soft);
}

.blog-card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.45s var(--ease);
}

.blog-card:hover .blog-card-cover img {
    transform: scale(1.04);
}

.blog-card-cover.broken {
    display: none;
}

.blog-card-title {
    font-weight: 700;
    font-size: 1.02rem;
    font-family: var(--font-cn);
    color: var(--text-main);
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card:hover .blog-card-title {
    color: var(--primary-deep);
}

.blog-card-summary {
    font-size: 0.84rem;
    color: var(--text-sub);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card-meta {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    padding: 0 20px 16px;
    margin-top: auto;
}

.blog-category {
    padding: 4px 12px;
    background: var(--primary-soft);
    color: var(--primary-deep);
    border: 1px solid var(--primary-border);
    border-radius: 100px;
    font-size: 0.74rem;
    font-weight: 600;
}

.blog-date {
    font-size: 0.8rem;
    color: var(--text-faint);
    font-variant-numeric: tabular-nums;
}

.blog-empty {
    text-align: center;
    padding: 44px 24px;
    color: var(--text-sub);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
}

.blog-more-line {
    display: block;
    text-align: center;
    padding: 12px;
    color: var(--primary-deep);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 600;
    background: var(--primary-soft);
    border: 1px dashed var(--primary-border);
    border-radius: var(--radius-sm);
    transition: background 0.25s var(--ease);
}

.blog-more-line:hover {
    background: #e0edff;
    text-decoration: none;
}

.blog-load-more {
    display: block;
    margin: 22px auto 0;
    padding: 10px 36px;
    border: none;
    border-radius: 100px;
    background: var(--primary);
    color: #fff;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    box-shadow: var(--shadow-soft);
    transition: background 0.25s var(--ease), transform 0.25s var(--ease);
}

.blog-load-more:hover {
    background: var(--primary-deep);
    transform: translateY(-1px);
}

/* ========== 详情视图 ========== */

.blog-detail-header {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 30px 36px;
    box-shadow: var(--shadow-soft);
    margin-bottom: 22px;
}

.blog-detail-title {
    font-size: 1.6rem;
    font-weight: 700;
    font-family: var(--font-cn);
    color: var(--text-main);
    margin: 0 0 16px;
    line-height: 1.45;
}

.blog-detail-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

/* 阅读时长（与日期同层级的次要信息） */
.blog-reading {
    font-size: 0.8rem;
    color: var(--text-faint);
    font-variant-numeric: tabular-nums;
}

/* 上一篇 / 下一篇 */
.blog-pager {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 22px;
}

.pager-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 14px 18px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-soft);
    text-decoration: none;
    transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease), transform 0.25s var(--ease);
}

a.pager-item:hover {
    border-color: var(--primary-border);
    box-shadow: var(--shadow-card);
    transform: translateY(-1px);
}

.pager-item.pager-next {
    text-align: right;
}

.pager-label {
    font-size: 0.74rem;
    color: var(--text-faint);
    letter-spacing: 1px;
}

.pager-title {
    font-size: 0.92rem;
    font-weight: 600;
    font-family: var(--font-cn);
    color: var(--text-main);
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

a.pager-item:hover .pager-title {
    color: var(--primary-deep);
}

.pager-item.pager-empty {
    visibility: hidden;
}

.blog-detail-content {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 36px 40px;
    box-shadow: var(--shadow-soft);
    font-size: 1rem;
    line-height: 1.95;
    color: var(--text-main);
    word-break: break-word;
}

.blog-detail-content h1,
.blog-detail-content h2,
.blog-detail-content h3,
.blog-detail-content h4 {
    margin: 1.4em 0 0.6em;
    line-height: 1.45;
    font-weight: 700;
    font-family: var(--font-cn);
    color: var(--text-main);
}

.blog-detail-content h1 { font-size: 1.5rem; }
.blog-detail-content h2 { font-size: 1.3rem; }
.blog-detail-content h3 { font-size: 1.15rem; }
.blog-detail-content h4 { font-size: 1.05rem; }

.blog-detail-content p {
    margin: 0 0 1.1em;
}

.blog-detail-content a {
    color: var(--primary-deep);
    text-decoration: none;
    border-bottom: 1px solid var(--primary-border);
    transition: border-color 0.2s var(--ease);
}

.blog-detail-content a:hover {
    border-bottom-color: var(--primary);
}

.blog-detail-content img {
    max-width: 100%;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-card);
}

.blog-detail-content code {
    background: var(--bg-soft);
    color: #b91c1c;
    padding: 2px 7px;
    border-radius: 5px;
    font-size: 0.88em;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.blog-detail-content pre {
    background: var(--bg-soft);
    color: var(--text-main);
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--card-border);
    overflow-x: auto;
    margin: 0 0 1.1em;
}

.blog-detail-content pre code {
    background: none;
    padding: 0;
    color: inherit;
}

.blog-detail-content blockquote {
    margin: 0 0 1.1em;
    padding: 10px 18px;
    border-left: 4px solid var(--primary);
    background: var(--primary-soft);
    border-radius: 0 10px 10px 0;
    color: var(--text-sub);
    font-family: var(--font-cn);
}

.blog-detail-content table {
    border-collapse: collapse;
    width: 100%;
    margin: 0 0 1.1em;
}

.blog-detail-content th,
.blog-detail-content td {
    border: 1px solid var(--card-border);
    padding: 8px 12px;
    text-align: left;
}

.blog-detail-content th {
    background: var(--bg-soft);
    font-weight: 600;
}

.blog-detail-content tr:nth-child(even) td {
    background: var(--bg);
}

.blog-detail-content hr {
    border: none;
    height: 1px;
    margin: 1.6em 0;
    background: var(--card-border);
}

.blog-detail-footer {
    margin-top: 24px;
    text-align: center;
}

/* ========== 移动端 ========== */

@media (max-width: 640px) {
    .blog-container {
        padding: 20px 16px 64px;
    }

    .blog-topbar {
        margin-bottom: 24px;
    }

    .blog-back {
        padding: 8px 14px;
    }

    .blog-list-title {
        font-size: 1.3rem;
    }

    .blog-list {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .blog-card-cover {
        height: 180px;
    }

    .blog-card-main {
        padding: 14px 16px 6px;
    }

    .blog-card-meta {
        padding: 0 16px 14px;
    }

    .blog-card-title {
        font-size: 0.98rem;
    }

    .blog-search {
        width: 100%;
        margin-top: 12px;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .blog-detail-header,
    .blog-detail-content {
        padding: 24px 20px;
    }

    .blog-detail-title {
        font-size: 1.3rem;
    }

    /* 详情正文行距略收，移动端阅读更连贯 */
    .blog-detail-content {
        font-size: 1.02rem;
        line-height: 1.85;
    }

    .blog-pager {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .pager-item.pager-next {
        text-align: left;
    }
}