/* ============ 文章详情页 ============ */

.article-card {
    background: #fff;
    border-radius: 12px;
    padding: 40px 56px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    border: 1px solid #eef1f6;
    max-width: 980px;
    margin: 0 auto;
}

.article-head {
    border-bottom: 1px solid #eef1f6;
    padding-bottom: 24px;
    margin-bottom: 28px;
}

.article-tag {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(15, 35, 75, 0.08);
    color: var(--primary, #0f3460);
    font-size: 13px;
    border-radius: 4px;
    margin-bottom: 14px;
    letter-spacing: 1px;
}

.article-title {
    font-size: 26px;
    font-weight: 700;
    color: #1a2b4a;
    line-height: 1.4;
    margin: 0 0 18px;
    text-align: center;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 18px 32px;
    font-size: 13px;
    color: #6b7a8f;
}

.article-meta span i {
    font-style: normal;
    color: #98a3b3;
    margin-right: 6px;
}

.article-body {
    font-size: 15px;
    line-height: 1.85;
    color: #3a4658;
}

.article-body p {
    margin: 0 0 14px;
    text-indent: 2em;
}

.article-body p strong {
    color: #1a2b4a;
}

.article-body h3 {
    font-size: 17px;
    font-weight: 700;
    color: #0f3460;
    margin: 28px 0 12px;
    padding-left: 12px;
    border-left: 4px solid #c8a04a;
}

.article-body h3:first-of-type {
    margin-top: 12px;
}

.info-table {
    width: 100%;
    border-collapse: collapse;
    margin: 12px 0 18px;
    font-size: 14px;
}

.info-table th,
.info-table td {
    border: 1px solid #e1e6ee;
    padding: 10px 14px;
    vertical-align: top;
    text-align: left;
}

.info-table th {
    background: #f4f7fb;
    color: #0f3460;
    font-weight: 600;
    width: 140px;
    white-space: nowrap;
}

.info-table thead th {
    background: #0f3460;
    color: #fff;
    text-align: center;
    white-space: normal;
}

.info-table tbody td {
    color: #3a4658;
}

.info-table tbody th + td {
    background: #fff;
}

.article-sign {
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px dashed #d8dde6;
    display: flex;
    justify-content: space-around;
    color: #1a2b4a;
    font-weight: 600;
    font-size: 14px;
    text-align: center;
}

.article-sign span {
    flex: 1;
}

.article-actions {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid #eef1f6;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.btn-back,
.btn-download {
    display: inline-block;
    padding: 10px 22px;
    border-radius: 6px;
    font-size: 14px;
    text-decoration: none;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.btn-back {
    background: #f4f7fb;
    color: #0f3460;
    border-color: #d8dde6;
}

.btn-back:hover {
    background: #0f3460;
    color: #fff;
    border-color: #0f3460;
}

.btn-download {
    background: #0f3460;
    color: #fff;
}

.btn-download:hover {
    background: #c8a04a;
    color: #fff;
}

@media (max-width: 720px) {
    .article-card {
        padding: 24px 20px;
    }
    .article-title {
        font-size: 21px;
    }
    .article-meta {
        gap: 8px 18px;
        font-size: 12px;
    }
    .info-table th {
        width: auto;
        white-space: normal;
    }
    .article-sign {
        flex-direction: column;
        gap: 12px;
    }
    .article-actions {
        flex-direction: column;
        align-items: stretch;
    }
}