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.slide-header{background:linear-gradient(90deg,#0d47a1,#1565c0);color:#fff}.theme-tech .slide-summary{background:linear-gradient(135deg,#e3f2fd,#f8fafc);color:#0f172a}.theme-tech .slide-end{background:linear-gradient(135deg,#1565c0,#0d47a1);color:#fff}.theme-tech .accent{color:#0d47a1}.theme-tech .accent-bg{background:#0d47a1}.theme-tech .accent-border{border-color:#0d47a1}.theme-tech .point-bullet{background:#0d47a1}.theme-fresh .slide-cover{background:linear-gradient(135deg,#1b5e20,#2e7d32,#43a047);color:#fff}.theme-fresh .slide-content{background:#fff;color:#1a2e1a}.theme-fresh .slide-content .slide-header{background:linear-gradient(90deg,#1b5e20,#388e3c);color:#fff}.theme-fresh .slide-summary{background:linear-gradient(135deg,#e8f5e9,#fff);color:#1a2e1a}.theme-fresh .slide-end{background:linear-gradient(135deg,#2e7d32,#1b5e20);color:#fff}.theme-fresh .accent{color:#2e7d32}.theme-fresh .accent-bg{background:#2e7d32}.theme-fresh .accent-border{border-color:#2e7d32}.theme-fresh .point-bullet{background:#2e7d32}.theme-vibrant .slide-cover{background:linear-gradient(135deg,#e65100,#f57c00,#ff9800);color:#fff}.theme-vibrant .slide-content{background:#fff;color:#2d1800}.theme-vibrant .slide-content .slide-header{background:linear-gradient(90deg,#e65100,#f57c00);color:#fff}.theme-vibrant .slide-summary{background:linear-gradient(135deg,#fff3e0,#fff);color:#2d1800}.theme-vibrant .slide-end{background:linear-gradient(135deg,#f57c00,#e65100);color:#fff}.theme-vibrant .accent{color:#e65100}.theme-vibrant .accent-bg{background:#e65100}.theme-vibrant .accent-border{border-color:#e65100}.theme-vibrant .point-bullet{background:#e65100}.theme-academic .slide-cover{background:linear-gradient(135deg,#1a237e,#283593,#3949ab);color:#fff}.theme-academic .slide-content{background:#fafafa;color:#1a1a2e}.theme-academic .slide-content .slide-header{background:#1a237e;color:#fff}.theme-academic .slide-summary{background:linear-gradient(135deg,#e8eaf6,#fafafa);color:#1a1a2e}.theme-academic .slide-end{background:linear-gradient(135deg,#283593,#1a237e);color:#fff}.theme-academic .accent{color:#283593}.theme-academic .accent-bg{background:#283593}.theme-academic .accent-border{border-color:#283593}.theme-academic .point-bullet{background:#283593}.slide-cover{justify-content:center;align-items:center;text-align:center;padding:4rem}.slide-cover .cover-title{font-size:2.5rem;font-weight:700;margin-bottom:1rem;line-height:1.3;letter-spacing:-.02em}.slide-cover .cover-subtitle{font-size:1.2rem;opacity:.85;font-weight:300}.slide-cover .cover-decoration{position:absolute;bottom:0;left:0;right:0;height:4px;background:#ffffff4d}.slide-cover .cover-dots{position:absolute;top:2rem;right:2rem;display:grid;grid-template-columns:repeat(3,8px);gap:6px;opacity:.3}.slide-cover .cover-dots span{width:8px;height:8px;border-radius:50%;background:currentColor}.slide-content{padding:0}.slide-content .slide-header{padding:1.2rem 2.5rem;display:flex;align-items:center;gap:1rem}.slide-content .slide-header .page-number{font-size:.75rem;opacity:.7;font-weight:600}.slide-content .slide-header h2{font-size:1.4rem;font-weight:600}.slide-content .slide-body{flex:1;padding:2rem 2.5rem;display:flex;flex-direction:column;justify-content:center}.slide-content .point-item{display:flex;align-items:flex-start;gap:1rem;padding:.8rem 0;border-bottom:1px solid rgba(0,0,0,.06)}.slide-content .point-item:last-child{border-bottom:none}.slide-content .point-bullet{width:8px;height:8px;border-radius:50%;margin-top:6px;flex-shrink:0}.slide-content .point-text{font-size:1.05rem;line-height:1.6}.slide-content .point-detail{font-size:.85rem;color:#666;margin-top:.3rem}.slide-content .slide-footer{padding:.8rem 2.5rem;border-top:1px solid rgba(0,0,0,.08);display:flex;justify-content:space-between;align-items:center;font-size:.75rem;color:#999}.slide-content .notes{font-style:italic;color:#888}.slide-data .data-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1.5rem;padding:2rem}.slide-data .data-card{background:#00000008;border-radius:12px;padding:1.5rem;text-align:center}.slide-data .data-value{font-size:2rem;font-weight:700}.slide-data .data-label{font-size:.85rem;color:#666;margin-top:.5rem}.slide-data .data-trend{font-size:.8rem;margin-top:.3rem}.slide-data .data-trend.up{color:#16a34a}.slide-data .data-trend.down{color:#dc2626}.slide-data .data-trend.flat{color:#666}.slide-summary{justify-content:center;padding:3rem}.slide-summary h2{font-size:1.8rem;font-weight:700;margin-bottom:2rem;text-align:center}.slide-summary .summary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.2rem;max-width:800px;margin:0 auto}.slide-summary .summary-card{background:#fff;border-radius:12px;padding:1.5rem;box-shadow:0 2px 8px #0000000f;border-left:4px solid}.slide-summary .summary-card p{font-size:1rem;line-height:1.6}.slide-end{justify-content:center;align-items:center;text-align:center;padding:4rem}.slide-end .end-title{font-size:3rem;font-weight:700;margin-bottom:1rem}.slide-end .end-subtitle{font-size:1.3rem;opacity:.8;font-weight:300}.thumbnail{width:120px;height:68px;border-radius:6px;border:2px solid transparent;overflow:hidden;cursor:pointer;flex-shrink:0;transition:all .2s ease;position:relative}.thumbnail:hover{border-color:#93c5fd}.thumbnail.active{border-color:#2563eb;box-shadow:0 0 0 2px #2563eb33}.thumbnail-content{width:240px;height:135px;transform:scale(.5);transform-origin:top left;pointer-events:none}.thumbnail-number{position:absolute;bottom:2px;right:4px;font-size:9px;color:#666;background:#fffc;padding:0 3px;border-radius:2px}#presentation-mode .ppt-slide{font-size:1.2em}@media print{.ppt-slide{page-break-after:always;border:1px solid #ccc}}@keyframes 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