/* =======================================================
   资源库列表
   ======================================================= */

.resource-filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
    margin-bottom: 26px;
}

.resource-filter {
    padding: 8px 15px;
    color: var(--text-secondary);
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: 999px;
    font-size: 0.82rem;
    cursor: pointer;
    transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.resource-filter:hover,
.resource-filter.is-active {
    color: var(--bg-primary);
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
}

.resource-card {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 22px;
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.resource-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 16px 16px 0 0;
    opacity: 0.75;
}

.resource-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-color);
    box-shadow: var(--glow);
}

.resource-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.resource-type {
    padding: 3px 9px;
    color: var(--primary-color);
    background: rgba(127, 127, 127, 0.08);
    border: 1px solid var(--border-light);
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 600;
}

.resource-date {
    color: var(--text-secondary);
    font-size: 0.72rem;
}

.resource-card h3 {
    margin: 0 0 8px;
    font-size: 1.1rem;
    line-height: 1.45;
}

.resource-card h3 a {
    color: var(--text-primary);
}

.resource-card h3 a:hover {
    color: var(--primary-color);
}

.resource-card p {
    flex: 1;
    margin: 0 0 14px;
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.75;
}

.resource-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 16px;
}

.resource-tags span {
    padding: 3px 8px;
    color: var(--text-secondary);
    background: rgba(127, 127, 127, 0.07);
    border: 1px solid var(--border-light);
    border-radius: 999px;
    font-size: 0.7rem;
}

.resource-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-top: 13px;
    border-top: 1px dashed var(--border-light);
}

.resource-card-footer > span {
    color: var(--text-secondary);
    font-size: 0.74rem;
}

.resource-read {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary-color);
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

.resource-read i {
    transition: transform 0.25s ease;
}

.resource-card:hover .resource-read i {
    transform: translateX(3px);
}

.resource-empty {
    grid-column: 1 / -1;
    padding: 46px 20px;
    color: var(--text-secondary);
    text-align: center;
}

@media (max-width: 768px) {
    .resource-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .resource-card {
        padding: 19px;
    }

    .resource-card-footer {
        align-items: flex-start;
        flex-direction: column;
    }
}