/* 在线工具卡片（首页 + /tools/ 聚合页共用） */
.home-tools { margin-bottom: var(--section-separation, 40px); }
.home-tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
    margin-top: 16px;
}
.tools-index-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
    margin-top: 16px;
}
.home-tool-card {
    display: block;
    padding: 20px;
    border: 1px solid var(--card-separator-color);
    border-radius: var(--card-border-radius, 8px);
    background: var(--card-background);
    color: var(--card-text-color-main);
    text-decoration: none;
    transition: border-color .15s ease, transform .15s ease;
}
.home-tool-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
    color: var(--card-text-color-main);
}
.home-tool-card-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 8px;
}
.home-tool-card-desc {
    font-size: 0.88rem;
    line-height: 1.6;
    color: var(--card-text-color-secondary);
    margin-bottom: 12px;
}
.home-tool-card-link {
    font-size: 0.88rem;
    color: var(--accent-color);
}
@media (max-width: 640px) {
    .home-tools-grid,
    .tools-index-grid { grid-template-columns: 1fr; }
}