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16px;border:none;border-bottom:var(--border-width) solid transparent;background:none;color:var(--text-dim);cursor:pointer;font-family:inherit;font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.08em;display:flex;align-items:center;gap:6px;transition:color .1s;margin-bottom:calc(-1 * var(--border-width))}.video-tab:hover{color:var(--text-main)}.video-tab.active{color:var(--primary);border-bottom-color:var(--primary)}.summary-panel{flex:1;display:flex;flex-direction:column;overflow:hidden;width:100%;max-width:860px;margin:0 auto}.summary-panel-body{flex:1;overflow-y:auto;padding:20px 0}.summary-panel-body::-webkit-scrollbar{width:4px}.summary-panel-body::-webkit-scrollbar-track{background:var(--bg-color)}.summary-panel-body::-webkit-scrollbar-thumb{background:var(--card-border)}.summary-state-center{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;padding:32px 16px;text-align:center}.summary-empty-icon{width:56px;height:56px;border-radius:var(--radius);background-color:var(--primary);border:var(--border-width) solid var(--border-color);box-shadow:var(--shadow-sm);display:flex;align-items:center;justify-content:center;color:#1a1a18;margin-bottom:16px}.summary-markdown{font-size:13px;line-height:1.7;color:var(--text-main)}.summary-markdown h1,.summary-markdown h2,.summary-markdown h3{font-size:13px;font-weight:800;text-transform:uppercase;letter-spacing:.08em;margin:20px 0 8px;padding-bottom:6px;border-bottom:1px solid var(--card-border)}.summary-markdown h1:first-child,.summary-markdown h2:first-child,.summary-markdown h3:first-child{margin-top:0}.summary-markdown p{margin:0 0 10px}.summary-markdown ul,.summary-markdown ol{padding-left:18px;margin:0 0 10px}.summary-markdown li{margin-bottom:4px}.summary-markdown strong{font-weight:700;color:var(--text-main)}.export-btn.active{background-color:var(--primary);border-color:var(--border-color);box-shadow:var(--shadow-accent)}.resize-handle{flex-shrink:0;width:1px;background:var(--card-border);cursor:col-resize;position:relative;z-index:10;transition:background .15s}.resize-handle:before{content:"";position:absolute;inset:0 -4px}.resize-handle:after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:3px;height:40px;border-radius:3px;background:var(--primary);opacity:0;transition:opacity .15s}.resize-handle:hover:after,.resize-handle.active:after{opacity:1}