.tool-header{display:flex;align-items:center;justify-content:space-between;padding:16px;background-color:var(--color-accent);color:#fff}.back-link{color:#fff;text-decoration:none}.tool-title{font-size:18px;margin:0;font-weight:600}.share-button{background:none;border:none;color:#fff;cursor:pointer;padding:4px}.converter-tabs{display:flex;gap:0;margin-bottom:0;border-bottom:2px solid var(--color-border)}.tab-btn{flex:1;padding:12px 16px;background:none;border:none;border-bottom:2px solid transparent;margin-bottom:-2px;font-size:15px;font-weight:600;color:var(--color-text-secondary);cursor:pointer;transition:color .2s,border-color .2s}.tab-btn:hover{color:var(--color-text)}.tab-btn.active{color:var(--color-accent);border-bottom-color:var(--color-accent)}.converter-panel{display:none}.converter-panel.active{display:block}.converter-panel .card-content{background-color:var(--card-bg-color);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:0 0 var(--border-radius) var(--border-radius);border:1px solid rgba(255,255,255,.5);border-top:none;box-shadow:var(--box-shadow);padding:20px;width:100%;box-sizing:border-box}.form-group{margin-bottom:16px;width:100%}.form-label{display:block;font-weight:600;margin-bottom:8px;color:var(--color-text)}.form-input,.era-select{width:100%;padding:12px;border:1px solid var(--color-border);border-radius:8px;font-size:16px;box-sizing:border-box;background-color:#ffffffe6;color:var(--color-text);transition:border-color .2s}.form-input:focus,.era-select:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px #33415526}.form-row{display:flex;gap:12px}.form-group-inline{flex:1}.btn-primary{display:inline-flex;align-items:center;justify-content:center;width:100%;padding:12px 20px;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;border:none;background-color:var(--color-accent);color:#fff;transition:background-color .2s;box-sizing:border-box;margin-top:8px}.btn-primary:hover{background-color:var(--color-accent-hover)}.result-card{background-color:var(--card-bg-color);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:var(--border-radius);border:1px solid rgba(255,255,255,.5);box-shadow:var(--box-shadow);padding:24px;margin-bottom:16px;width:100%;box-sizing:border-box;text-align:center}.era-result{font-size:32px;font-weight:700;color:var(--color-accent);margin-bottom:8px;line-height:1.3}.era-result-sub{font-size:16px;color:var(--color-text-secondary);margin-bottom:0}.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px}.info-item{background-color:var(--color-surface-hover);border-radius:8px;padding:14px 10px;text-align:center}.info-item-label{font-size:12px;color:var(--color-text-secondary);margin-bottom:4px}.info-item-value{font-size:18px;font-weight:700;color:var(--color-text)}.info-item-note{font-size:11px;color:var(--color-error);margin-top:4px;font-weight:600}.life-events{background-color:var(--card-bg-color);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:var(--border-radius);border:1px solid rgba(255,255,255,.5);box-shadow:var(--box-shadow);padding:20px;margin-bottom:16px;width:100%;box-sizing:border-box}.life-events-title{font-size:15px;font-weight:600;color:var(--color-text);margin-bottom:14px}.event-item{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--color-border);font-size:14px;color:var(--color-text)}.event-item:last-child{border-bottom:none}.event-age{min-width:50px;font-weight:600;color:var(--color-accent);font-size:13px}.event-name{flex:1}.event-year{font-size:13px;color:var(--color-text-secondary);text-align:right;white-space:nowrap}.era-table{background-color:var(--card-bg-color);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:var(--border-radius);border:1px solid rgba(255,255,255,.5);box-shadow:var(--box-shadow);padding:20px;margin-bottom:16px;width:100%;box-sizing:border-box}.era-table-title{font-size:15px;font-weight:600;color:var(--color-text);margin-bottom:14px}.era-table table{width:100%;border-collapse:collapse;font-size:14px}.era-table th,.era-table td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--color-border)}.era-table th{font-weight:600;color:var(--color-text-secondary);font-size:12px}.era-table td{color:var(--color-text)}.era-table tr:last-child td{border-bottom:none}.era-table .era-name-cell{font-weight:600;color:var(--color-accent)}.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%) translateY(100px);background-color:#000c;color:#fff;padding:12px 24px;border-radius:8px;font-size:14px;opacity:0;transition:transform .3s ease,opacity .3s ease;z-index:1000;pointer-events:none}.toast.show{transform:translate(-50%) translateY(0);opacity:1}.hint-text{font-size:13px;color:var(--color-text-secondary);text-align:center;margin-top:16px}@media(min-width:768px){.tool-title{font-size:22px}.btn-primary{width:auto;min-width:200px}.era-result{font-size:36px}.info-grid{gap:16px}.info-item-value{font-size:20px}}