/* =============================================================
   Midnight · 书库 / 筛选
   ============================================================= */

.md-library { padding-top: 8px; }

.md-lib-top {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin: 22px 0 18px;
}
.md-lib-top h1 { font: 600 clamp(26px, 2.6vw, 34px)/1.2 var(--md-serif); letter-spacing: .02em; }
.md-lib-top h1 span { color: var(--md-gold); }
.md-lib-top p { margin-top: 6px; color: var(--md-muted); font-size: 12.5px; }
.md-lib-stat { display: flex; align-items: center; gap: 18px; color: var(--md-dim); font-size: 12px; }
.md-lib-stat b { color: var(--md-gold); font: 600 16px var(--md-serif); margin-right: 3px; }

/* 当前筛选项回显 */
.md-active-filters {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin: 14px 0 0;
    color: var(--md-dim);
    font-size: 12px;
}
.md-active-filters > span { color: var(--md-muted); }
.md-active-filters .md-chip { background: var(--md-panel-2); border: 1px solid var(--md-line); color: var(--md-text-2); }
.md-active-filters a.md-reset { color: var(--md-gold); font-size: 12px; }

/* 内容网格 */
.md-library-list { margin-top: 24px; }
.md-lib-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 28px 20px; }
.md-lib-grid .md-book-desc { -webkit-line-clamp: 2; }

/* 列表模式 */
.md-lib-rows { display: flex; flex-direction: column; gap: 12px; }
.md-row {
    display: grid;
    grid-template-columns: 92px minmax(0, 1fr) auto;
    gap: 18px;
    align-items: center;
    padding: 14px;
    background: var(--md-panel);
    border: 1px solid var(--md-line);
    border-radius: var(--md-r-sm);
    transition: border-color .2s ease, transform .2s ease, background .2s ease;
}
.md-row:hover { border-color: var(--md-line-gold); background: var(--md-panel-2); transform: translateY(-1px); }
.md-row-cover { display: block; aspect-ratio: 3 / 4; border-radius: 8px; overflow: hidden; background: var(--md-panel-3); }
.md-row-cover img { width: 100%; height: 100%; object-fit: cover; }
.md-row-body { min-width: 0; }
.md-row-title { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font: 600 16px/1.4 var(--md-sans); }
.md-row-title a:hover { color: var(--md-gold); }
.md-row-meta { display: flex; flex-wrap: wrap; gap: 6px 14px; margin-top: 5px; color: var(--md-dim); font-size: 12px; }
.md-row-meta em { font-style: normal; color: var(--md-muted); }
.md-row-desc {
    margin-top: 8px;
    color: var(--md-muted);
    font-size: 12.5px;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.md-row-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 8px; }
.md-row-actions { display: flex; flex-direction: column; align-items: flex-end; gap: 8px; }
.md-row-actions .md-btn { min-height: 34px; }

/* 加载更多 / 结果统计 */
.md-lib-foot { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 26px; color: var(--md-dim); font-size: 12px; }

/* 响应式 */
@media (max-width: 1360px) { .md-lib-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); } }
@media (max-width: 1180px) { .md-lib-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
@media (max-width: 1024px) {
    .md-lib-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px 16px; }
    .md-lib-top { align-items: flex-start; flex-direction: column; gap: 10px; }
}
@media (max-width: 900px) { .md-lib-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 768px) {
    .md-lib-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .md-row { grid-template-columns: 72px minmax(0, 1fr); }
    .md-row-actions { display: none; }
}
@media (max-width: 560px) {
    .md-lib-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .md-lib-stat { display: none; }
    .md-row-desc { -webkit-line-clamp: 1; }
}