/* フォーム専用 */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    background-color: #f8f9fa;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 60px 20px;
}

.form-header {
    text-align: center;
    margin-bottom: 40px;
}

.description {
    font-size: 1.25rem;
    font-weight: 400;
    color: #112a58;
}

.line-button {
    width: 60%;
    margin: 0 auto;
}

.contact-form {
    background: #fff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.contact-section {
    background-image: url("../img/pc/etc/background.jpeg");
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-weight: bold;
    margin-bottom: 8px;
    color: #004d80;
}

.insta {
    margin-top: -20px;
}

.required {
    background: #e74c3c;
    color: #fff;
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 3px;
    margin-left: 8px;
    vertical-align: middle;
}

input[type="text"],
input[type="email"],
input[type="tel"],
textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

input:focus,
textarea:focus {
    outline: none;
    border-color: #0071bc;
    background-color: #f0f7ff;
}

.checkbox-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    background: #f9f9f9;
    padding: 15px;
    border-radius: 6px;
}

.radio-group {
    background: #f9f9f9;
    padding: 15px;
    border-radius: 6px;
}

.radio-item,
.checkbox-item {
    display: flex;
    align-items: center;
    font-size: 0.9rem;
    cursor: pointer;
}

.checkbox-item input {
    margin-right: 8px;
    width: 18px;
    height: 18px;
}

.form-submit {
    text-align: center;
    margin-top: 40px;
}

.submit-btn {
    background: linear-gradient(135deg, #0071bc 0%, #004d80 100%);
    color: #fff;
    border: none;
    padding: 18px 80px;
    font-size: 1.1rem;
    font-weight: bold;
    border-radius: 50px;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 5px 15px rgba(0, 77, 128, 0.3);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 77, 128, 0.4);
}

.form-note {
    font-size: 0.8rem;
    color: #666;
    margin-bottom: 8px;
    line-height: 1.4;
}

.privacy-agreement {
    margin-bottom: 15px;
    text-align: center;
}

.privacy-agreement .checkbox-item {
    font-size: 1rem;
    justify-content: center;
}

.privacy-agreement .checkbox-item input {
    margin-right: 8px;
    width: 16px;
    height: 16px;
}

.privacy-agreement .checkbox-item a {
    color: #0071bc;
    text-decoration: underline;
}

@media screen and (max-width: 767px) {
    .container {
        padding: 40px 15px;
    }

    .contact-form {
        padding: 25px 20px;
    }

    .checkbox-group {
        grid-template-columns: 1fr;
    }

    .submit-btn {
        width: 230px;
        padding: 15px;
    }

    section#section-01 {
        width: 100%;
    }

    section#section-01 .sp-only img {
        width: 100%;
        max-width: 100%;
        height: auto;
        display: block;
    }

    .description {
        font-size: 0.8rem;
    }

    .line-button {
        width: 70%;
        margin: 0 auto;
    }
}