.erlangc-container {
    max-width: 960px;
    margin: 30px auto;
    background: #fff;
    padding: 20px;
    border-radius: 16px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.grid {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}
.input-box {
    flex: 1 1 200px;
    display: flex;
    flex-direction: column;
}
.input-box.full {
    flex: 1 1 100%;
    display: flex;
    gap: 10px;
}
.input-box label {
    font-weight: bold;
    margin-bottom: 4px;
}
.input-box input, .input-box select {
    padding: 8px;
    border-radius: 10px;
    border: 1px solid #ccc;
}
.input-box button {
    padding: 10px 16px;
    background: #1976d2;
    color: white;
    border: none;
    border-radius: 10px;
    cursor: pointer;
}
.table-wrapper {
    margin-top: 20px;
}
#input-table {
    width: 100%;
    border-collapse: collapse;
}
#input-table th, #input-table td {
    border: 1px solid #ddd;
    padding: 10px;
    text-align: center;
}
#input-table input {
    width: 90%;
    padding: 6px;
    border-radius: 6px;
    border: 1px solid #ccc;
}
.chart-card {
    margin-top: 40px;
    padding: 15px;
    background: #f7f8fc;
    border-radius: 14px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}