:root {
    --bg: #f8f9fa;
    --surface: #fff;
    --text: #1a1a1a;
    --text-muted: #5c5c5c;
    --border: #e8e8e8;
    --accent: #2563eb;
    --shadow: 0 1px 3px rgba(0,0,0,.06);
    --shadow-hover: 0 4px 12px rgba(0,0,0,.08);
}
* { box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    background: var(--bg);
    color: var(--text);
    max-width: 560px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
    line-height: 1.5;
}
h1 {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin: 0 0 1.75rem;
    color: var(--text);
}
.link-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    margin-bottom: 0.75rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    text-decoration: none;
    color: inherit;
    box-shadow: var(--shadow);
    transition: box-shadow .2s, border-color .2s;
}
.link-card:hover {
    box-shadow: var(--shadow-hover);
    border-color: #d0d5dd;
}
.link-card:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}
.link-card h2 {
    margin: 0 0 0.35rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
}
.link-card-img {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    object-fit: contain;
    border-radius: 6px;
    background: var(--bg);
}
.link-card-body {
    flex: 1;
    min-width: 0;
}
.link-card .link-num {
    color: var(--text-muted);
    font-weight: 500;
}
.link-card p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-muted);
}
.link-card .arrow {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--text-muted);
    transition: color .2s, transform .2s;
}
.link-card:hover .arrow {
    color: var(--accent);
    transform: translate(2px, -2px);
}