/* ============================================
   内容页专用样式
   ============================================ */

.detail-title {
    font-size: 26px;
    font-weight: 700;
    line-height: 1.35;
    margin-bottom: 18px;
}

/* ===== 标准概览卡片 ===== */
.std-overview {
    background: var(--bg-body);
    border-radius: 8px;
    padding: 16px 20px;
    margin-bottom: 20px;
    border-left: 4px solid var(--primary);
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 6px 24px;
}
.std-overview .std-item {
    display: flex;
    align-items: baseline;
    gap: 4px;
    font-size: 14px;
    padding: 3px 0;
    border-bottom: 1px dashed rgba(0,0,0,0.05);
}
.std-overview .std-item .label {
    color: var(--text-muted);
    font-weight: 400;
    white-space: nowrap;
    flex-shrink: 0;
}
.std-overview .std-item .value {
    font-weight: 600;
    color: var(--text-main);
    word-break: break-all;
}
.std-item-keyword {
    grid-column: 1 / -1;
}
.std-item-keyword .value {
    word-break: normal;
    white-space: normal;
}
@media (max-width: 640px) {
    .std-overview { grid-template-columns: 1fr 1fr; padding: 12px 16px; }
}
@media (max-width: 400px) {
    .std-overview { grid-template-columns: 1fr; }
}

/* ===== 下载按钮 ===== */
.download-box {
    text-align: center;
    padding: 16px 0 20px;
    border-bottom: 1px solid var(--border-light);
    margin-bottom: 20px;
}
.download-btn {
    display: inline-block;
    padding: 10px 40px;
    background: var(--primary);
    color: #fff !important;
    font-size: 16px;
    font-weight: 600;
    border-radius: 40px;
    transition: all 0.25s;
    box-shadow: 0 3px 12px rgba(192,57,43,0.2);
    letter-spacing: 0.3px;
}
.download-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(192,57,43,0.25);
}
@media (max-width: 640px) {
    .download-btn { padding: 8px 28px; font-size: 15px; }
}

/* ===== 简介区域 ===== */
.desc-content {
    font-size: 15px;
    line-height: 1.8;
    min-height: 150px;
}
.desc-content p { margin-bottom: 10px; }
.desc-content ul, .desc-content ol { padding-left: 22px; margin-bottom: 12px; }

/* ===== 所属专题 ===== */
.topic-item {
    display: flex;
    gap: 14px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-light);
    align-items: center;
}
.topic-item:last-child { border-bottom: none; }
.topic-item img { width: 60px; height: 60px; object-fit: cover; border-radius: 6px; flex-shrink: 0; background: var(--bg-body); }
.topic-item .info { flex: 1; min-width: 0; }
.topic-item .info a { font-weight: 600; font-size: 15px; }
.topic-list { list-style: none; padding: 0; margin: 6px 0 0; }
.topic-list li { display: flex; justify-content: space-between; align-items: center; padding: 6px 0; border-bottom: 1px solid var(--border-light); font-size: 14px; }
.topic-list li:last-child { border-bottom: none; }
.topic-list li a { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-right: 12px; }
.topic-subtitle { margin-top: 12px; font-size: 13px; color: var(--text-muted); }

/* ===== 相关推荐 ===== */
.related-list { list-style: none; padding: 0; }
.related-list li { display: flex; justify-content: space-between; align-items: center; padding: 7px 0; border-bottom: 1px solid var(--border-light); font-size: 14px; }
.related-list li:last-child { border-bottom: none; }
.related-list li a { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-right: 12px; font-weight: 500; }
.related-list li a:hover { color: var(--primary); }

/* ===== 内容页响应式 ===== */
@media (max-width: 640px) {
    .detail-title { font-size: 20px; }
}