.kibikino-checksheet {
    font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: transparent; /* テーマの背景を活かす */
    max-width: 100%; /* WPのコンテンツ幅に合わせる */
    margin: 0 auto;
}
.kibikino-checksheet h2 {
    color: #2c3e50;
    border-bottom: 2px solid #34495e;
    padding-bottom: 10px;
    margin-bottom: 20px;
    font-size: 1.5em;
}
.kibikino-checksheet .instruction {
    font-size: 1em;
    color: #333;
    margin-bottom: 25px;
    background: #f4f7f6;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
}
.kibikino-checksheet .check-item {
    background: #fff;
    padding: 15px 20px;
    margin-bottom: 15px;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
    border-left: 5px solid #bdc3c7;
    transition: all 0.3s ease;
}
.kibikino-checksheet .check-item:hover {
    border-left-color: #3498db;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
.kibikino-checksheet label {
    display: flex;
    align-items: center;
    font-size: 1.05em;
    font-weight: bold;
    cursor: pointer;
    margin: 0;
}
.kibikino-checksheet input[type="checkbox"] {
    transform: scale(1.3);
    margin-right: 15px;
    cursor: pointer;
}
.kibikino-checksheet .result-box {
    display: none;
    margin-top: 15px;
    padding: 15px;
    background-color: #fdf2e9;
    border-radius: 4px;
    border-left: 4px solid #e67e22;
}
.kibikino-checksheet .result-box h4 {
    margin-top: 0;
    margin-bottom: 10px;
    color: #d35400;
    font-size: 1.05em;
}
.kibikino-checksheet .result-box p {
    margin: 0;
    font-size: 0.95em;
}
.kibikino-checksheet .conclusion-box {
    margin-top: 40px;
    background: #2c3e50;
    color: #fff;
    padding: 25px;
    border-radius: 8px;
    text-align: left;
}
.kibikino-checksheet .conclusion-box h3 {
    color: #f1c40f;
    margin-top: 0;
    border-bottom: 1px solid #7f8c8d;
    padding-bottom: 10px;
}
.kibikino-checksheet .conclusion-box p {
    font-size: 1.05em;
    line-height: 1.7;
    margin-bottom: 0;
}