* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f7f8fa;
    color: #222;
}

.header {
    background: #ffffff;
    padding: 25px 40px;
    border-bottom: 1px solid #ddd;
}

.header h1 {
    margin: 0;
    font-size: 28px;
}

.header p {
    margin: 5px 0 0;
    color: #666;
}

.container {
    max-width: 1100px;
    margin: 30px auto;
    padding: 0 20px;
}

#loading {
    text-align: center;
    padding: 30px;
    color: #666;
}

.topic {
    margin-bottom: 35px;
}

.topic-title {
    font-size: 22px;
    margin-bottom: 15px;
}

.content-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

.content-table th,
.content-table td {
    border: 1px solid #ccc;
    padding: 12px;
    text-align: left;
}

.content-table th {
    background: #f1f1f1;
}

.content-link {
    color: #1769aa;
    text-decoration: none;
    cursor: pointer;
}

.content-link:hover {
    text-decoration: underline;
}

@media (max-width: 700px) {

    .content-table {
        font-size: 14px;
    }

    .content-table th,
    .content-table td {
        padding: 8px;
    }

    .header {
        padding: 20px;
    }
}