/* ==================================================
    ✉ PrivateAI-Platform フォーム全体設定
================================================== */
.contact-ai-container {
    max-width: 950px;           /* 既存のoverallに合わせる */
    margin: 40px auto 80px;
    padding: 0 40px;
    text-align: left;
    color: #444;
    font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
}

.contact-header {
    margin-bottom: 40px;
}

.contact-header h1 {
    font-size: 2rem;
    margin-bottom: 25px;
    line-height: 1.2;
    color: #1a2a3a;
}

.intro-text {
    font-size: 1.15rem;         /* 既存のcontact(1.25rem)に近いサイズ */
    line-height: 1.7;
}

.highlight-note {
    background: #f4f7fa;        /* 既存のaddress背景色に合わせる */
    padding: 20px 25px;
    border-left: 5px solid #2563eb;
    margin-top: 20px;
    font-size: 1rem;
    border-radius: 4px;
}

/* フォームの外枠 */
.form-wrapper {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    margin-top: 40px;
}

/* Ph.D. バッジセクション */
.expert-badge {
    background: #1a2a3a;
    color: white;
    padding: 15px 25px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.badge-icon {
    background: #3b82f6;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: bold;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.expert-badge p {
    font-size: 0.95rem;
    margin: 0;
    line-height: 1.4;
}

/* フォーム内部 */
.diagnostic-form {
    padding: 40px;
}

/* PC/タブレット用 2列レイアウト */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

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

.form-group label {
    display: block;
    font-weight: bold;
    margin-bottom: 10px;
    color: #374151;
}

.req {
    color: #b30000;
    font-size: 0.85rem;
    margin-left: 5px;
}

input, select, textarea {
    width: 100%;
    padding: 14px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 1rem;
    box-sizing: border-box;
    background: #fff;
}

/* チェックボックスのグリッド表示 */
.checkbox-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    background: #f9fafb;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #f0f0f0;
}

.cb-label {
    font-weight: normal !important;
    font-size: 0.95rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
}

.cb-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* 送信エリア */
.form-footer {
    margin-top: 40px;
    text-align: center;
}

.btn-submit {
    width: 100%;
    max-width: 500px;
    background: #2563eb;
    color: white;
    border: none;
    padding: 22px;
    border-radius: 8px;
    cursor: pointer;
    transition: 0.3s;
}

.btn-submit:hover {
    background: #1d4ed8;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-submit .main-text {
    display: block;
    font-size: 1.3rem;
    font-weight: bold;
}

.btn-submit .sub-text {
    display: block;
    font-size: 0.9rem;
    opacity: 0.9;
    margin-top: 6px;
}

.privacy-policy-link {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 20px;
}

.privacy-policy-link a {
    color: #0000AA;
    text-decoration: underline;
}

/* ==================================================
    📱 モバイル対応（1023px以下）
================================================== */
@media screen and (max-width: 1023px) {
    .contact-ai-container {
        width: 100%;
        padding: 0 20px;
        margin: 30px 0 60px;
    }

    .contact-header h1 {
        font-size: 1.7rem;
    }

    .intro-text {
        font-size: 1.1rem;
    }

    .form-wrapper {
        margin-top: 30px;
        border-radius: 0; /* モバイルでは端まで広げる */
        border-left: none;
        border-right: none;
    }

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

    /* 2列を1列に強制 */
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .checkbox-grid {
        grid-template-columns: 1fr; /* チェックボックスも1列に */
    }

    .btn-submit {
        max-width: 100%;
    }
}