body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
}

.header {
    background-color: #1b3f67;
    color: #ffffff;
    padding: 20px;
    border-radius: 0px 0px 15px 15px;
    margin-bottom: 20px;
}

.header h1 {
    margin: 0;
    font-size: 24px;
    font-weight: normal;
    color: #ffffff;
    border: none;
    background: none;
}

.header .subtitle {
    font-size: 14px;
    color: #cccccc;
    margin-top: 5px;
}

.main {
    max-width: 960px;
    margin: 0 auto;
    padding: 20px;
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.nav {
    text-align: right;
    color: #666;
    font-size: 13px;
    margin-bottom: 20px;
    padding: 10px;
    background-color: #f9f9f9;
    border-radius: 4px;
}

.letterlist {
    background-color: #f0f0f0;
    padding: 5px 10px;
    border-radius: 4px;
}

.letterlist a {
    padding: 3px 8px;
    text-decoration: none;
    color: #4d8fb8;
    font-weight: bold;
}

.letterlist a:hover {
    background-color: #4d8fb8;
    color: #ffffff;
    border-radius: 3px;
}

h2, h3, h4 {
    color: #1b3f67;
    border-bottom: 2px solid #4d8fb8;
    padding-bottom: 5px;
    margin-top: 25px;
    font-weight: normal;
}

.pkglist {
    list-style-type: none;
    padding: 0;
    margin: 15px 0;
}

.pkglist li {
    padding: 8px 0;
    border-bottom: 1px solid #eeeeee;
}

.pkglist li:last-child {
    border-bottom: none;
}

a.inpage {
    text-decoration: none;
    color: #4d8fb8;
    font-weight: bold;
}

a.inpage:hover {
    color: #1b3f67;
    text-decoration: underline;
}

.footernote {
    text-align: right;
    font-size: 11px;
    color: #999;
    margin-top: 30px;
    padding-top: 15px;
    border-top: 1px solid #eeeeee;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 15px 0;
}

th {
    background-color: #1b3f67;
    color: #ffffff;
    text-align: left;
    padding: 10px;
    font-weight: normal;
}

td {
    padding: 8px 10px;
    border-bottom: 1px solid #eeeeee;
}

.field {
    background-color: #f9f9f9;
    text-align: right;
    font-weight: bold;
    color: #666;
}

dt {
    font-weight: bold;
    color: #1b3f67;
    margin-top: 10px;
}

dd {
    margin-left: 20px;
    margin-bottom: 10px;
}

em {
    color: #666;
    font-style: normal;
    font-size: 12px;
}

.rpmcontents {
    display: none;
    font-size: 11px;
    font-family: monospace;
    background-color: #f5f5f5;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    margin-top: 10px;
}