body {
font-family: ‘Segoe UI’, Tahoma, Geneva, Verdana, sans-serif;
line-height: 1.8;
color: #444;
max-width: 900px;
margin: 0 auto;
padding: 20px;
background-color: #f5f5f5;
}

.history-container {
background-color: #f8f9fa;
border-radius: 10px;
padding: 25px;
margin: 20px 0;
box-shadow: 0 4px 8px rgba(0,0,0,0.05);
border-right: 5px solid #6c757d;
}

h1 {
color: #495057;
text-align: center;
font-size: 2rem;
margin-bottom: 25px;
padding-bottom: 15px;
border-bottom: 2px solid #dee2e6;
}

h2 {
color: #343a40;
font-size: 1.5rem;
margin-top: 25px;
border-right: 4px solid #adb5bd;
padding-right: 12px;
}

.timeline {
background-color: #e9ecef;
padding: 20px;
border-radius: 8px;
margin: 20px 0;
}

.milestone {
background-color: #ffffff;
padding: 15px;
border-radius: 6px;
margin: 15px 0;
border-left: 4px solid #6c757d;
}

.treatment-progress {
background-color: #e2e3e5;
padding: 18px;
border-radius: 8px;
margin: 20px 0;
}

.current-status {
background-color: #d1e7dd;
padding: 18px;
border-radius: 8px;
margin: 20px 0;
}

.keyword {
background-color: #f8f9fa;
padding: 2px 6px;
border-radius: 4px;
font-weight: bold;
color: #0d6efd;
}

ul {
padding-right: 20px;
}

li {
margin-bottom: 12px;
position: relative;
padding-right: 15px;
}

li:before {
content: “•”;
color: #6c757d;
font-weight: bold;
position: absolute;
right: 0;
}

.note {
background-color: #fff3cd;
padding: 12px;
border-radius: 6px;
margin: 15px 0;
font-style: italic;
}