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0;display:flex;position:relative}.timeline:before{content:"";background:linear-gradient(180deg,transparent,var(--glass-border-unified) 15%,var(--glass-border-unified) 85%,transparent);z-index:0;width:2px;position:absolute;top:0;bottom:0;left:50%;transform:translate(-50%)}.timeline-item{z-index:1;width:100%;display:flex;position:relative}.timeline-item.right{justify-content:flex-end;padding-left:50%}.timeline-item.left{text-align:right;justify-content:flex-start;padding-right:50%}.timeline-dot{z-index:2;border:none;border-radius:50%;width:12px;height:12px;position:absolute;top:24px;left:50%;transform:translate(-50%,-50%)}.timeline-item:hover .timeline-dot{scale:1.3}.timeline-year{color:var(--text-dim);letter-spacing:.1em;width:50px;font-size:.75rem;font-weight:700;position:absolute;top:14px}.timeline-item.right .timeline-year{text-align:right;left:calc(50% - 65px)}.timeline-item.left .timeline-year{text-align:left;right:calc(50% - 65px)}.timeline-content{-webkit-backdrop-filter:blur(2.5px);border:1px solid var(--glass-border-unified);width:calc(100% - 40px);box-shadow:none;background:#32323a80;border-radius:12px;padding:16px 20px;transition:all .4s cubic-bezier(.4,0,.2,1);position:relative;backdrop-filter:blur(2.5px)}.timeline-item.right .timeline-content{margin-left:30px}.timeline-item.left .timeline-content{margin-right:30px}.timeline-item.left .timeline-content:before,.timeline-item.right .timeline-content:before{content:"";background:var(--glass-border-unified);width:20px;height:1px;position:absolute;top:23px}.timeline-item.right .timeline-content:before{left:-20px}.timeline-item.left .timeline-content:before{right:-20px}.timeline-content:hover{border-color:var(--glass-border-sakura);background:#ff9dbb0d;transform:translateY(-2px);box-shadow:0 10px 25px -5px #0000004d}.timeline-title{font-family:var(--font-heading);color:var(--text-primary);margin-bottom:4px;font-size:.9rem;font-weight:600}.timeline-subtitle{color:var(--text-dim);letter-spacing:.03em;font-size:.72rem}.section-header{justify-content:space-between;align-items:flex-start;margin-bottom:24px;display:flex}.section-title-group{flex-direction:column;gap:4px;display:flex}.section-japanese{font-family:var(--font-heading);letter-spacing:.25em;color:var(--text-dim);text-transform:uppercase;font-size:.6rem}.section-title{background:linear-gradient(135deg,var(--text-primary) 0,var(--text-secondary) 100%);color:#0000;text-shadow:0 0 24px #e8a0b81f;-webkit-background-clip:text;background-clip:text;font-size:1.5rem;font-weight:700}.section-subtitle,.section-title{font-family:var(--font-heading);letter-spacing:.08em}.section-subtitle{color:var(--text-dim);margin-top:3px;font-size:.72rem;font-style:italic}.filter-btn{border:1px solid 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