/* 타임라인 */
.timeline ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.timeline li {
    margin: 15px 0;
    padding: 30px;
    background: #f8f8f8;
    border-radius: 16px;
    position: relative;
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
    transition: transform 0.2s ease;
}
.timeline li:hover {
    transform: translateY(-4px);
}

/* .history {
    margin-top: 60px;
} */
.history {
    /* background-color: #011e41;  
    padding: 80px 0; */
    margin-top: 60px;
}

#aboutTimeline {
    max-width: 1000px;
    margin: 0 auto 100px auto;
    position: relative;
}

.status {
    position: absolute;
    left: 100px;
    top: 0;
    margin-top: 17px;
    width: 2px;
    height: 100%;
    background-color: #e0e0e0;
}
.status:after {
    content: '';
    position: absolute;
    left: -1px;
    bottom: 0;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: #999;
    transition: 0.4s;
}
.status.last-bottom:after {
    background-color: #00B0FF;
}

.status .bar {
    position: absolute;
    left: 0;
    top: 0;
    width: 3px;
    height: 0;
    max-height: 100%;
    background-color: #00B0FF;
    transition: height 0.5s ease;
}

.item {
    display: flex;
    margin-bottom: 80px;
    position: relative;
    gap: 40px;
}

.item:last-child {
    margin-bottom: 0;
}

.item h2.subject {
    min-width: 100px;
    margin: 0;
    color: #011e41;
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.5px;
    position: relative;
    white-space: nowrap;
}
/* .item h2.subject:before {
    content: '';
    position: absolute;
    left: -12px;
    top: 6px;
    width: 12px;
    height: 12px;
    background-color: #00B0FF;
    border-radius: 50%;
    z-index: 1;
}
.item h2.subject:after {
    content: '';
    position: absolute;
    left: -18px;
    top: 2px;
    width: 20px;
    height: 20px;
    background-color: rgba(0,176,255, 0.15);
    border-radius: 50%;
} */
.item h2.subject:before {
    content: none;
}
.item h2.subject:after {
    content: none;
}

.item ul {
    padding-left: 0;
    width: 100%;
}

.item ul li + li {
    margin-top: 40px;
}

.item ul li .tit {
    display: block;
    margin-bottom: 10px;
    font-size: 18px;
    font-weight: 700;
    color: #222;
}

.item ul li .txt {
    font-size: 22px;
    color: #555;
    line-height: 1.6;
}

/* 반응형 */
@media (max-width: 767px) {
    .item {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }

    .status {
        display: none;
    }

    .item h2.subject {
        font-size: 24px;
        padding-left: 0;
    }

    .item h2.subject:before,
    .item h2.subject:after {
        display: none;
    }

    .item ul li .tit {
        font-size: 18px;
    }

    .item ul li .txt {
        font-size: 15px;
    }
}