.navbar {
    background: var(--bg-primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-standard) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-standard);
    cursor: pointer;
    transition: all 0.2s ease-in-out;
}

.logo:hover {
    transform: translateY(-2px);
}

.logo span {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.search-container {
    flex: 1;
    max-width: 400px;
    margin: 0 var(--spacing-loose);
    position: relative;
}

.search-input {
    width: 100%;
    padding: 10px 40px 10px 16px;
    border: 1px solid var(--border-primary);
    border-radius: 8px;
    font-size: 14px;
}

.search-clear-btn {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    font-size: 20px;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease-in-out;
}

.search-clear-btn:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border-radius: 50%;
}

.search-result-count {
    position: absolute;
    bottom: -20px;
    left: 0;
    font-size: 12px;
    color: var(--text-tertiary);
}

.nav-links {
    display: flex;
    gap: var(--spacing-loose);
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
}

.main-content {
    min-height: calc(100vh - 400px);
    padding: var(--spacing-extra) 0;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-loose);
    margin-bottom: var(--spacing-extra);
}

.tool-card {
    background: var(--bg-primary);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    padding: var(--spacing-loose);
    transition: all 0.2s ease-in-out;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.tool-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.12);
}

.tool-card:active {
    transform: scale(0.98);
}

.tool-card-tags {
    position: absolute;
    top: var(--spacing-standard);
    right: var(--spacing-standard);
    display: flex;
    gap: 4px;
}

.tool-tag {
    background: var(--primary);
    color: white;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 500;
}

.tool-tag.hot {
    background: var(--error);
}

.tool-tag.new {
    background: var(--success);
}

.tool-icon {
    width: 200px;
    height: 150px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    margin-bottom: var(--spacing-standard);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.tool-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.tool-icon img.loaded {
    opacity: 1;
}

.tool-icon svg {
    width: 64px;
    height: 64px;
    color: var(--text-tertiary);
}

.tool-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-tight);
    line-height: 1.5;
}

.tool-description {
    font-size: 14px;
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-standard);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.tool-card .btn-primary {
    width: 100%;
}

.no-results {
    text-align: center;
    padding: var(--spacing-extra) 0;
    display: none;
}

.no-results svg {
    margin-bottom: var(--spacing-standard);
}

.no-results p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-standard);
}

.no-results button {
    margin-top: var(--spacing-standard);
}

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-standard);
    flex-wrap: wrap;
}

.pagination-btn {
    background: var(--bg-primary);
    border: 1px solid var(--border-primary);
    border-radius: 8px;
    padding: 8px 16px;
    color: var(--text-primary);
    transition: all 0.2s ease-in-out;
}

.pagination-btn:hover:not(:disabled) {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-2px);
}

.pagination-btn:active:not(:disabled) {
    transform: translateY(1px);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.pagination-info {
    color: var(--text-secondary);
    font-size: 14px;
}

.pagination-select {
    padding: 8px 12px;
    border: 1px solid var(--border-primary);
    border-radius: 8px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
}

.footer {
    background: var(--bg-tertiary);
    padding: var(--spacing-extra) 0;
    margin-top: var(--spacing-extra);
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-loose);
}

.footer-column h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-standard);
}

.footer-column p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: var(--spacing-tight);
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: var(--spacing-tight);
}

.footer-column ul li a {
    color: var(--text-secondary);
    font-size: 14px;
}

.footer-column ul li a:hover {
    color: var(--primary);
}

.copyright {
    margin-top: var(--spacing-standard);
    font-size: 12px;
    color: var(--text-tertiary);
}

.beian {
    margin-top: var(--spacing-standard);
    font-size: 12px;
    color: var(--text-tertiary);
}

@media (max-width: 1023px) {
    .tools-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767px) {
    .navbar-container {
        flex-wrap: wrap;
    }
    
    .logo {
        width: 100%;
        justify-content: center;
        margin-bottom: var(--spacing-standard);
    }
    
    .search-container {
        order: 3;
        max-width: 100%;
        margin: var(--spacing-standard) 0;
    }
    
    .nav-links {
        width: 100%;
        justify-content: center;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
    }
}