.section-main-title {
    font-size: 36px;
    font-weight: 700;
    color: #31B1B8;
    margin-bottom: 40px;
}

.intro-fade-section {
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 0;
    box-sizing: border-box;
    font-family: 'Nunito', sans-serif;
}

.fade {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1s ease, transform 1s ease;
}

.fade.visible {
    opacity: 1;
    transform: translateY(0);
}

.intro-text {
    color: #303030;
    font-size: 20px;
    font-weight: 700;
    line-height: 1.6;
    margin: 0 0 30px;
    white-space: pre-line;
    width: 90%;
}

.scroll-guide {
    color: #999;
    font-size: 16px;
    font-weight: 700;
    margin-top: 50px;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1s ease, transform 1s ease;
}
.scroll-guide.visible {
    opacity: 1;
    transform: translateY(0);
    animation: blink 1.5s infinite ease-in-out;
}
@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.scroll-arrow {
    color: #999;
    font-size: 24px;
    margin-top: 20px;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1s ease, transform 1s ease;
}
.scroll-arrow.visible {
    opacity: 1;
    transform: translateY(0);
    animation: bounce 1.5s infinite;
}
@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(10px); }
}

.history-section {
    width: 100%;
    min-height: 100vh;
    background: #fff;
    padding: 120px 0 80px;
    box-sizing: border-box;
    text-align: center;
    font-family: 'Nunito', sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.history-year-block {
    width: 100%;
    max-width: 700px;
    margin: 0 auto 60px;
    text-align: left;
}

.history-year {
    font-size: 32px;
    font-weight: 700;
    color: #31B1B8;
    margin-bottom: 20px;
}

.history-list {
    list-style: none;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    font-size: 16px;
    color: #333;
}

.history-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
}

.history-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #31B1B8;
}