.container {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #ffffff;
    max-width: 800px;
    margin: 40px auto;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.h1, h2 {
    color: #2b2d42;
}

.h1 {
    margin-bottom: 10px;
    font-size: 32px;
}

h2 {
    font-size: 24px;
}

.ul p, .ul li {
    color: #333;
    line-height: 1.6;
    font-size: 16px;
}

.updated-date {
    font-style: italic;
    color: #6c757d;
    margin-bottom: 30px;
}

.notice-box {
    border-left: 4px solid #2196f3;
    background-color: #f1f8ff;
    padding: 20px;
    margin-bottom: 30px;
    border-radius: 4px;
}

.ul {
    margin-left: 20px;
}

/* Instead of .dark-theme ... use .dark-mode */

.dark-mode .container {
    background-color: #1e1e1e;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.dark-mode h1,
.dark-mode h2 {
    color: #ffffff;
}

.dark-mode p,
.dark-mode li {
    color: #cccccc;
}

.dark-mode .updated-date {
    color: #b0b0b0;
}

.dark-mode .notice-box {
    border-left: 4px solid #64b5f6;
    background-color: #263238;
}

.dark-mode a {
    color: #90caf9;
}