body {
    margin: 40px;
    font-family: "Inter", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: #ffffff;
    color: #222;
    line-height: 1.7;
}
h1 {
    text-align: center;
    font-weight: 600;
    font-size: 22px;
    margin-bottom: 40px;
}
h2 {
    font-weight: 600;
    font-size: 18px;
    margin-top: 45px;
    margin-bottom: 15px;
    border-left: 4px solid #333;
    padding-left: 12px;
}
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    margin-bottom: 20px;
}
th, td {
    border: 1px solid #ddd;
    padding: 10px 8px;
    vertical-align: top;
}
thead th {
    background: #f7f7f7;
    font-weight: 600;
}
tbody tr:hover {
    background: #fafafa;
}
.section {
    background: #f2f2f2;
    font-weight: 600;
}
.total {
    background: #f9f9f9;
    font-weight: 600;
}
.free {
    color: #777;
}
.final {
    font-size: 15px;
    font-weight: 700;
}
.note {
    margin-top: 25px;
    font-size: 13px;
    color: #555;
    line-height: 1.8;
}
.sub-note {
    margin-top: 10px;
    font-size: 13px;
    color: #555;
    line-height: 1.6;
}