/* 阶段一：基础样式，后续可统一换肤 */
* {
    box-sizing: border-box;
}

body {
    font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
    line-height: 1.5;
    margin: 0;
    padding: 1.5rem;
    color: #1a1a1a;
    background: #f5f6f8;
}

.site-header {
    margin-bottom: 1rem;
}

.site-header h1 {
    font-size: 1.5rem;
    margin: 0 0 0.25rem;
}

.muted {
    color: #666;
    font-size: 0.9rem;
    margin: 0;
}

a {
    color: #2563eb;
}

a:hover {
    text-decoration: underline;
}

.site-footer {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid #e2e4e8;
    font-size: 0.85rem;
    color: #888;
}

.site-footer p {
    margin: 0;
}