/* ========================================
   四库全书插件全局样式（基础版）
   ======================================== */
.siku-home-wrap,
.siku-archive-wrap,
.siku-detail-wrap,
.siku-chapter-wrap {
    font-family: "Noto Serif SC", "PingFang SC", "Microsoft YaHei", "STSong", serif;
    color: #1e2a3a;
    line-height: 1.6;
}
.siku-breadcrumb {
    font-size: 0.9rem;
    color: #666;
}
.siku-breadcrumb a {
    color: #0f3459;
    text-decoration: none;
}
.siku-breadcrumb a:hover {
    color: #992822;
}
.siku-breadcrumb .sep {
    margin: 0 8px;
    color: #999;
}
.siku-book-card {
    background: #ffffff;
    border: 1px solid #d8d0b8;
    border-radius: 6px;
    overflow: hidden;
    transition: all 0.25s ease;
    display: flex;
    flex-direction: row;
    min-height: 180px;
    position: relative; /* 关键：为收藏按钮定位 */
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.siku-book-card:hover {
    transform: translateY(-4px);
    border-color: #992822;
    box-shadow: 0 8px 24px rgba(0,0,0,0.10);
}
.siku-book-card .book-collect-btn {
    position: absolute;
    right: 10px;
    top: 10px;
    background: transparent;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: #ccc;
    transition: color 0.2s;
    z-index: 2;
}
.siku-book-card .book-collect-btn:hover {
    color: #e74c3c;
}
.siku-book-card .book-collect-btn.collected {
    color: #e74c3c;
}
.siku-book-card .book-cover-link {
    display: block;
    flex: 0 0 120px;
    min-height: 100%;
    overflow: hidden;
    background: #ede8dc;
    text-decoration: none;
}
.siku-book-card .book-cover-link img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.siku-book-card .book-cover-link .no-cover {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    font-size: 2.5rem;
    color: #bbb;
}
.siku-book-card .book-info {
    padding: 14px 16px 12px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-width: 0;
}
.siku-book-card .book-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin: 0 0 2px;
    line-height: 1.3;
}
.siku-book-card .book-title a {
    color: #1e2a3a;
    text-decoration: none;
}
.siku-book-card .book-title a:hover {
    color: #992822;
}
.siku-book-card .book-meta {
    font-size: 0.8rem;
    color: #888;
    margin-bottom: 4px;
}
.siku-book-card .book-meta span {
    margin-right: 12px;
}
.siku-book-card .book-excerpt {
    font-size: 0.85rem;
    line-height: 1.5;
    color: #555;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin: 4px 0 8px;
    flex: 1;
}
.siku-book-card .book-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 6px;
    border-top: 1px solid #f0ede4;
    padding-top: 8px;
}
.siku-book-card .btn-start {
    background: #992822;
    color: #fff;
    border: none;
    padding: 4px 16px;
    border-radius: 4px;
    text-decoration: none;
    transition: background 0.2s;
}
.siku-book-card .btn-start:hover {
    background: #7c1f1a;
}
.siku-book-card .chapter-count {
    font-size: 0.75rem;
    color: #888;
}
@media (max-width: 992px) {
    .siku-book-card .book-cover-link {
        flex: 0 0 100px;
    }
}
@media (max-width: 768px) {
    .siku-book-card .book-cover-link {
        flex: 0 0 100px;
    }
    .siku-book-card .book-excerpt {
        -webkit-line-clamp: 1;
    }
}
@media (max-width: 480px) {
    .siku-book-card .book-cover-link {
        flex: 0 0 80px;
    }
}