.m-series{max-width:820px;margin:18px auto 0;padding:0;position:relative;font-family:'DM Sans',system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;box-sizing:border-box}.m-series *{box-sizing:border-box}.m-series-trigger{width:100%;background:#fff!important;border:1px solid #CBD5E0;border-radius:999px;padding:14px 22px 14px 18px;display:flex;align-items:center;gap:14px;cursor:pointer;font-family:inherit;text-align:left;transition:all .2s;box-shadow:0 1px 3px rgba(26,54,93,.05);color:inherit}.m-series-trigger:hover{border-color:#2B6CB0;box-shadow:0 4px 12px rgba(43,108,176,.10)}.m-series-trigger.is-open{border-color:#2B6CB0;border-radius:24px 24px 0 0;border-bottom-color:#EBF4FB}.m-series-badge{flex-shrink:0;background:linear-gradient(135deg,#2B6CB0,#1A365D);color:#fff;font-size:10px;font-weight:800;letter-spacing:1.5px;padding:6px 12px;border-radius:999px;text-transform:uppercase;line-height:1.2}.m-series-meta{flex:1;min-width:0;line-height:1.2}.m-series-meta .m-label{font-size:10px;color:#718096;text-transform:uppercase;letter-spacing:2px;font-weight:700;display:block;margin-bottom:3px}.m-series-meta .m-current{font-size:14px;font-weight:700;color:#1A365D;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.m-series-chevron{flex-shrink:0;width:26px;height:26px;background:#EBF4FB;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#2B6CB0;transition:transform .25s ease,background .25s ease,color .25s ease;font-size:10px;line-height:1}.m-series-trigger.is-open .m-series-chevron{transform:rotate(180deg);background:#2B6CB0;color:#fff}.m-series-panel{display:none;background:#fff;border:1px solid #2B6CB0;border-top:none;border-radius:0 0 18px 18px;margin-top:-1px;overflow:hidden;box-shadow:0 12px 32px rgba(26,54,93,.10);position:relative;z-index:9999;max-height:520px;overflow-y:auto}.m-series-panel.is-open{display:block;animation:m-slide .25s ease}@keyframes m-slide{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}.m-series-item{display:flex;align-items:center;gap:14px;padding:14px 22px;text-decoration:none!important;border-bottom:1px solid #F0F3F7;transition:background .15s;color:inherit}.m-series-item:last-child{border-bottom:none}.m-series-item:hover{background:#F7F8FA;text-decoration:none!important}.m-series-item.is-current{background:linear-gradient(90deg,#EBF4FB,#fff);border-left:3px solid #2B6CB0;padding-left:19px}.m-item-num{flex-shrink:0;width:32px;height:32px;border-radius:8px;background:#EDF2F7;color:#4A5568;font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center;line-height:1}.m-series-item.is-current .m-item-num{background:#2B6CB0;color:#fff}.m-item-body{flex:1;min-width:0}.m-item-title{font-size:14px;font-weight:600;color:#2D3748;line-height:1.3;display:block}.m-series-item.is-current .m-item-title{color:#1A365D;font-weight:700}.m-item-sub{font-size:11px;color:#718096;margin-top:2px;display:block;line-height:1.45}.m-item-tag{flex-shrink:0;font-size:9px;font-weight:700;text-transform:uppercase;letter-spacing:1px;padding:3px 9px;border-radius:4px;background:#EDF2F7;color:#718096;line-height:1.4}.m-series-item.is-current .m-item-tag{background:#1A365D;color:#fff}@media(max-width:640px){.m-series{padding-left:24px;padding-right:24px}.m-series-trigger{padding:12px 16px 12px 14px;gap:10px}.m-series-badge{font-size:9px;padding:5px 10px}.m-series-meta .m-current{font-size:13px}.m-series-meta .m-label{font-size:9px;letter-spacing:1.5px}.m-series-item{padding:13px 16px;gap:10px;align-items:flex-start}.m-series-item.is-current{padding-left:13px}.m-item-tag{display:none}}