/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: #f8f9fa;
    color: #333;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
}

/* 侧边导航栏样式 */
.sidebar {
    width: 200px;
    height: 100vh;
    background: #fff;
    position: fixed;
    left: 0;
    top: 0;
    border-right: 1px solid #f0f0f0;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: #ff6b6b transparent;
    margin-top: 48px;
}

.sidebar::-webkit-scrollbar {
    width: 3px;
}

.sidebar::-webkit-scrollbar-thumb {
    background-color: #ff6b6b;
    border-radius: 3px;
}

.nav-menu {
    list-style: none;
    padding: 1rem 0;
}

.nav-item {
    margin: 0.15rem 0;
    padding: 0 0.5rem;
}

.nav-item a {
    display: flex;
    align-items: center;
    padding: 0.6rem 0.75rem;
    color: #666;
    text-decoration: none;
    transition: all 0.2s ease;
    border-radius: 4px;
    font-size: 0.9rem;
    opacity: 0.85;
    justify-content: center;
}

.nav-item a:hover {
    background: #fff5f5;
    color: #ff6b6b;
    opacity: 1;
}

.nav-item.active a {
    background: #fff5f5;
    color: #ff6b6b;
    font-weight: 500;
    opacity: 1;
}

.icon {
    margin-right: 0.6rem;
    font-size: 1rem;
    opacity: 0.7;
}

/* 主内容区域样式 */
.main-content {
    flex: 1;
    margin-left: 200px;
    /*padding: 2rem;*/
    padding: 3rem 2rem 2rem 2rem;
    background: #fff;
}

/* 容器样式 */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* 工具部分样式 */
.tools-section {
    margin-bottom: 4rem;
    scroll-margin-top: 1rem;
}

/* 工具卡片容器 */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 15px;
    padding: 15px;
}

/* 工具卡片样式 */
.tool-card {
    display: flex;
    align-items: flex-start;
    padding: 12px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    text-decoration: none;
    border: 1px solid transparent;
    max-width: 100%;
    overflow: hidden;
    align-items: center;
}

.tool-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(255, 107, 107, 0.15);
    border-color: #ff6b6b;
}

/* 图标样式 */
.tool-icon {
    width: 40px;
    height: 40px;
    margin-right: 12px;
    flex-shrink: 0;
    background: #f5f5f5;
    border-radius: 6px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.tool-card:hover .tool-icon {
    background: #fff5f5;
}

.tool-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.tool-card:hover .tool-icon img {
    transform: scale(1.05);
}

.tool-icon.default {
    background: linear-gradient(135deg, #6b9fff 0%, #3c7aff 100%);
    color: #fff;
    font-size: 20px;
    font-weight: bold;
}

/* 文字内容区域 */
.tool-content {
    flex: 1;
    min-width: 0;
    max-width: calc(100% - 52px); /* 40px图标宽度 + 12px右边距 */
    display: flex;
    flex-direction: column;
    gap: 6px;
    overflow: hidden;
}

/* 工具名称 */
.tool-name {
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin: 0;
    line-height: 1.4;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    transition: color 0.3s ease;
    max-width: 100%;
}

.tool-card:hover .tool-name {
    color: #ff6b6b;
}

/* 工具描述 */
.tool-desc {
    font-size: 12px;
    color: #666;
    margin: 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.3s ease;
    max-width: 100%;
}

.tool-card:hover .tool-desc {
    color: #888;
}

/* 分类标题 */
.section-title {
    font-size: 20px;
    font-weight: bold;
    color: #333;
    margin: 30px 0 20px;
    padding-left: 20px;
    border-left: 4px solid #ff6b6b;
}

/* 响应式布局 */
@media (max-width: 1600px) {
    .tools-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 1400px) {
    .tools-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 1200px) {
    .tools-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .sidebar {
        width: 180px;
    }
    
    .main-content {
        margin-left: 180px;
        padding: 1.5rem;
    }
    
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tool-card {
        padding: 16px;
    }
    
    .tool-icon {
        width: 44px;
        height: 44px;
        margin-bottom: 0.875rem;
    }
    
    .tool-name {
        font-size: 0.9rem;
    }
    
    .tool-desc {
        font-size: 0.7rem;
        max-height: 2.6em;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 1000;
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
        padding: 1.5rem;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .tool-card {
        padding: 16px;
    }
    
    .tool-icon {
        width: 48px;
        height: 48px;
    }
    
    .tool-name {
        font-size: 16px;
    }
    
    .tool-desc {
        font-size: 14px;
    }
    
    .section-title {
        font-size: 1.2rem;
        margin-bottom: 1.25rem;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: 1rem;
    }
    
    .tools-grid {
        padding: 10px;
    }
    
    .tool-card {
        padding: 12px;
    }
    
    .tool-icon {
        width: 40px;
        height: 40px;
    }
    
    .tool-name {
        font-size: 15px;
    }
    
    .tool-desc {
        font-size: 13px;
    }
    
    .section-title {
        font-size: 1.1rem;
        margin-bottom: 1rem;
    }
    
    .nav-item a {
        padding: 0.5rem 0.75rem;
        font-size: 0.85rem;
    }
}