body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.7;
    color: #222;
    background: #fff;
}

.container {
    max-width: 820px;
    margin: auto;
    padding: 24px;
}

.site-header {
    border-bottom: 1px solid #e5e5e5;
    padding: 20px 0;
    margin-bottom: 30px;
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    padding: 0 24px;
}

.logo img {
    height: 72px;
    width: auto;
    display: block;
}

.site-search {
    display: flex;
    gap: 8px;
    flex: 0 1 320px;
}

.site-search input[type="search"] {
    flex: 1;
    padding: 8px 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 14px;
}

.site-search button {
    padding: 8px 14px;
    border: 1px solid #1a4ea0;
    background: #1a4ea0;
    color: #fff;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
}

.site-search button:hover {
    background: #163f82;
}

.site-footer {
    border-top: 1px solid #e5e5e5;
    margin-top: 60px;
    padding: 30px 0;
    text-align: center;
    color: #777;
    font-size: 14px;
}

h1 {
    font-size: 42px;
    margin: 0 0 10px;
}

h2 {
    margin-top: 40px;
}

.subtitle {
    color: #666;
    font-size: 20px;
    margin-bottom: 30px;
}

.date {
    color: #888;
    font-size: 14px;
    margin-bottom: 30px;
}

.article-list p {
    margin: 18px 0;
}

.article-list a {
    text-decoration: none;
    color: #1a4ea0;
    font-size: 20px;
    font-weight: 600;
}

.article-list a:hover {
    text-decoration: underline;
}

.more-link {
    margin-top: 40px;
    font-weight: bold;
}

.back-home {
    margin-top: 50px;
}

img {
    max-width: 100%;
    height: auto;
}

#search {
    margin-top: 20px;
}