* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans JP', sans-serif;
    background: #ffffff;
    color: #333;
    line-height: 1.6;
    padding: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: #111;
}

.subtitle {
    color: #666;
    margin-bottom: 3rem;
}

section {
    margin-bottom: 3rem;
}

h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #111;
    border-bottom: 2px solid #333;
    padding-bottom: 0.5rem;
}

.list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.item {
    padding: 1.25rem;
    background: #f8f9fa;
    border-radius: 8px;
    text-decoration: none;
    color: #333;
    transition: all 0.2s;
    border: 1px solid #e9ecef;
}

.item:hover {
    background: #e9ecef;
    transform: translateX(4px);
}

.item-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.25rem;
}

.favicon {
    width: 24px;
    height: 24px;
    object-fit: contain;
}

.item h3 {
    font-size: 1.1rem;
    color: #111;
    margin: 0;
}

.item p {
    font-size: 0.9rem;
    color: #666;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.tag {
    font-size: 0.8rem;
    padding: 0.25rem 0.75rem;
    background: #fff;
    border-radius: 4px;
    color: #666;
}

@media (max-width: 600px) {
    body {
        padding: 1rem;
    }

    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.25rem;
    }
}