/* 页面整体布局 */
.main {
    background-color: var(--background-color);
    min-height: calc(100vh - 60px);
    padding-top: 2rem;
}

.page-title {
    color: var(--secondary-color);
    margin-bottom: 2rem;
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    position: relative;
    padding-bottom: 1rem;
}

.page-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

/* 工具网格布局 */
.tools-grid {
    display: grid;
    gap: 2rem;
    padding: 1rem 0 3rem;
    max-width: 1400px;
    margin: 0 auto;
}

/* 工具分类样式 */
.tool-category {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-bottom: 1rem;
}

.tool-category h2 {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* 工具分类图标 */
.tool-category-icon {
    font-size: 1.5rem;
    line-height: 1;
}

/* 工具列表网格 */
.tool-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

/* 工具卡片样式 */
.tool-card {
    display: block;
    text-decoration: none;
    padding: 1.25rem;
    border: 1px solid #eee;
    border-radius: 8px;
    transition: all 0.3s ease;
    background: white;
}

.tool-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.tool-card h3 {
    color: var(--primary-color);
    margin: 0 0 0.5rem 0;
    font-size: 1rem;
    font-weight: 500;
}

.tool-card p {
    color: #666;
    margin: 0;
    font-size: 0.875rem;
    line-height: 1.5;
}

/* 工具状态标签 */
.tool-status {
    display: inline-block;
    padding: 0.125rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    margin-left: 0.5rem;
    font-weight: normal;
    vertical-align: middle;
}

.tool-status.new {
    background-color: #e6f4ff;
    color: var(--primary-color);
}

.tool-status.popular {
    background-color: #fff7e6;
    color: #fa8c16;
}

/* 响应式布局调整 */
@media (max-width: 768px) {
    .tools-grid {
        gap: 1rem;
        padding: 1rem;
    }

    .tool-category {
        padding: 1rem;
    }

    .tool-list {
        grid-template-columns: 1fr;
    }
}

/* 工具分类导航 */
.tools-nav {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    overflow-x: auto;
    padding: 0.5rem 0;
    -webkit-overflow-scrolling: touch;
}

.tools-nav::-webkit-scrollbar {
    display: none;
}

.tools-nav-item {
    display: flex;
    align-items: center;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    background: white;
    color: var(--text-color);
    text-decoration: none;
    white-space: nowrap;
    transition: all 0.3s ease;
    border: 1px solid #eee;
}

.tools-nav-item:hover,
.tools-nav-item.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}