:root {
    --primary-color: #034060;
    --secondary-color: #a3d5ff;
    --text-color: #333;
    --background-color: #f5f5f5;
    --transition-speed: 0.3s;
}

  .company-section {
    background-color: var(--background-color);
    padding: 120px 20px 80px;
    overflow: hidden;
}

.company-title-container {
  max-width: 1200px;
  margin: 80px auto 80px;
  padding: 0 20px;
  position: relative;
  overflow: hidden;
}

.company-title {
    position: relative;
    font-family: 'Futura Lt BT', sans-serif;
    line-height: 1;
    text-align: center;
}

.company-title .title-bg {
    font-size: clamp(60px, 10vw, 120px);
    color: #e9ecef;
    display: block;
    position: relative;
    z-index: 1;
}

.company-title .title-main {
    font-size: clamp(35px, 3vw, 24px);
    color: var(--primary-color);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    opacity: 0;
}

.section-title {
    color: var(--primary-color);
    font-size: 32px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 30px;
}

.mission-section,
.value-section,
.company-info-section,
.history-section {
    padding: 80px 0;
}

.section-description {
    font-size: 20px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 20px;
}

.section-content {
    font-size: 16px;
    line-height: 1.8;
    text-align: justify;
    max-width: 800px;
    margin: 0 auto;
}

.value-list {
    list-style-type: none;
    padding: 0;
    max-width: 800px;
    margin: 0 auto;
}

.value-list li {
    margin-bottom: 30px;
}

.value-list h3 {
    color: var(--primary-color);
    font-size: 20px;
    margin-bottom: 10px;
}

.company-info-section,
.history-section {
    background-color: #ffffff;
}

.info-grid,
.timeline {
    max-width: 800px;
    margin: 0 auto;
}

.info-item,
.timeline-item {
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #e0e0e0;
}

.info-item h3,
.timeline-item .date {
    color: var(--primary-color);
    font-size: 18px;
    margin-bottom: 10px;
}

.info-item p,
.timeline-item p {
    color: var(--text-color);
    font-size: 16px;
    line-height: 1.6;
}

@keyframes fadeInGradient {
    0% {
        opacity: 0;
        color: #ffffff;
    }
    50% {
        opacity: 0.5;
        color: #a8c5d6;
    }
    100% {
        opacity: 1;
        color: #e9ecef;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* レスポンシブデザイン */
@media (max-width: 1024px) {
    .container {
        padding: 0 15px;
    }

    .section-title {
        font-size: 28px;
    }

    .section-description {
        font-size: 18px;
    }
}

@media (max-width: 768px) {
    .company-title .title-bg {
        font-size: clamp(40px, 8vw, 80px);
    }

    .company-title .title-main {
        font-size: clamp(24px, 2.5vw, 20px);
    }

    .section-title {
        font-size: 24px;
    }

    .section-description {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .company-section {
        padding: 80px 15px 60px;
    }

    .section-title {
        font-size: 22px;
    }

    .section-description {
        font-size: 14px;
    }
}