body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f8f9fa;
    color: #333;
}

header {
    background-color: #007bff;
    color: #fff;
    padding: 1rem;
    text-align: center;
}

footer {
    background-color: #007bff;
    color: #fff;
    padding: 1rem;
    text-align: center;
}

.container {
    max-width: 800px;
    margin: 20px auto;
    padding: 15px;
    background: #fff;
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.thread-list {
    list-style: none;
    padding: 0;
}

.thread-list li {
    margin: 10px 0;
}

.thread-list a {
    text-decoration: none;
    color: #007bff;
    font-size: 1.2rem;
}

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

.thread-title {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.post {
    border-bottom: 1px solid #ddd;
    padding: 10px 0;
}

.post:last-child {
    border-bottom: none;
}

.post-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: #555;
}

.post-content {
    margin-top: 0.5rem;
}

.contents-info {
    font-weight: normal;
}

.contents-name {
    font-weight: bold;
}

.contents-body {
    font-weight:bold;
}

dd {
    border-bottom: 1px solid #ddd;
    margin-bottom: 0.5rem;
}

.breadcrumb {
    margin: 0;
    padding: 0;
    list-style: none;
}

.breadcrumb li {
    display: inline;/*横に並ぶように*/
    list-style: none;
    font-weight: bold;/*太字*/
}

.breadcrumb li:after {/* >を表示*/
    content: '>';
    padding: 0 0.2em;
    color: #555;
}

.breadcrumb li:last-child:after {
    content: '';
}

.breadcrumb li a {
    text-decoration: none;
    color: #52b5ee;/*色*/
}

.breadcrumb li a:hover {
    text-decoration: underline;
}

.bottom-link {
    margin: 0;
    padding: 0;
    list-style: none;
}

.bottom-link li {
    display: inline;/*横に並ぶように*/
    list-style: none;
    font-weight: bold;/*太字*/
}

.bottom-link li:after {/* >を表示*/
    content: '|';
    padding: 0 0.2em;
    color: #555;
}

.bottom-link li:last-child:after {
    content: '';
}

.bottom-link li a {
    text-decoration: none;
    color: #52b5ee;/*色*/
}

.bottom-link li a:hover {
    text-decoration: underline;
}

@media (max-width: 600px) {
    .post-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .post-header span {
        margin-bottom: 5px;
    }

    .thread-list a {
        font-size: 1rem;
    }
}