:root{--bg: #0f0f0f;--bg-card: #1a1a1a;--bg-code: #1e1e1e;--text: #f0f0f0;--text-muted: #888;--accent: #6c5ce7;--accent2: #00cec9;--warn: #e17055;--ok: #00b894;--border: #2d2d2d;--radius: 12px;--font: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font);background:var(--bg);color:var(--text);overflow:hidden;width:1920px;height:1080px}.app-container{width:1920px;height:1080px;display:flex;flex-direction:column;position:relative}.progress-bar{position:fixed;top:0;left:0;right:0;height:3px;background:var(--border);z-index:100}.progress-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .5s ease}.nav-bar{position:fixed;bottom:0;left:0;right:0;height:40px;display:flex;align-items:center;justify-content:center;background:var(--bg);border-top:1px solid var(--border);font-size:13px;color:var(--text-muted)}.nav-info{letter-spacing:.5px}.slide-cover{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:80px;text-align:center}.slide-cover__series{font-size:14px;letter-spacing:4px;color:var(--accent);text-transform:uppercase;margin-bottom:24px}.slide-cover__divider{width:40px;height:2px;background:var(--accent);margin-bottom:32px}.slide-cover__title{font-size:56px;font-weight:700;line-height:1.2;margin-bottom:20px;letter-spacing:-1px}.slide-cover__subtitle{font-size:24px;color:var(--text-muted);font-weight:400;margin-bottom:48px}.slide-cover__meta{font-size:14px;color:var(--text-muted);letter-spacing:1px}.slide-content{flex:1;padding:60px 80px 50px;display:flex;flex-direction:column}.slide-content__header{display:flex;align-items:center;gap:16px;margin-bottom:24px}.slide-content__step-indicator{font-size:14px;font-weight:600;color:var(--accent);font-family:var(--font-mono)}.slide-content__divider{flex:1;height:1px;background:var(--border)}.slide-content__title{font-size:36px;font-weight:700;margin-bottom:28px;letter-spacing:-.5px}.slide-content__body{flex:1}.slide-list{list-style:none;padding:0}.slide-list li{position:relative;padding:14px 0 14px 32px;font-size:22px;line-height:1.5;border-bottom:1px solid var(--border)}.slide-list li:last-child{border-bottom:none}.slide-list li:before{content:"";position:absolute;left:0;top:22px;width:8px;height:8px;border-radius:50%;background:var(--accent)}.stat-banner{display:flex;gap:40px;justify-content:center;margin:20px 0 30px}.stat-item{text-align:center}.stat-value{display:block;font-size:48px;font-weight:700;color:var(--accent);font-family:var(--font-mono)}.stat-label{display:block;font-size:16px;color:var(--text-muted);margin-top:8px}.slide-desc{font-size:20px;line-height:1.6;color:var(--text-muted)}.comparison-box{display:flex;align-items:center;gap:30px;justify-content:center;padding:20px 0}.comparison-col{flex:1;max-width:380px;padding:30px;border-radius:var(--radius);border:1px solid var(--border);text-align:center}.comparison-col.good{border-color:var(--ok)}.comparison-col.bad{border-color:var(--warn)}.comp-header{font-size:16px;margin-bottom:12px;color:var(--text-muted)}.comp-value{font-size:42px;font-weight:700;font-family:var(--font-mono);margin-bottom:12px}.comparison-col.good .comp-value{color:var(--ok)}.comparison-col.bad .comp-value{color:var(--warn)}.comp-desc{font-size:14px;color:var(--text-muted);line-height:1.5}.comparison-arrow{font-size:18px;color:var(--text-muted);white-space:nowrap}.highlight-box{padding:20px 24px;border-radius:var(--radius);background:#6c5ce71a;border:1px solid rgba(108,92,231,.3)}.highlight-box__label{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:2px;color:var(--accent);margin-bottom:8px}.highlight-box__text{font-size:20px;line-height:1.6}.code-block{background:var(--bg-code);border:1px solid var(--border);border-radius:var(--radius);padding:24px;font-family:var(--font-mono);font-size:15px;line-height:1.7;overflow-x:auto}.code-block code{color:#e0e0e0}.cols-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}.col-card{padding:20px;border-radius:var(--radius);background:var(--bg-card);border:1px solid var(--border);border-left:3px solid var(--accent)}.col-card__title{font-size:17px;font-weight:600;margin-bottom:8px}.col-card__desc{font-size:16px;line-height:1.5;color:var(--text-muted)}.file-tree{font-family:var(--font-mono);font-size:16px;line-height:2}.file-tree__item{display:flex;gap:16px;padding:4px 0}.file-tree__path{color:var(--accent2)}.file-tree__desc{color:var(--text-muted)}.flow-arrow{display:flex;align-items:center;justify-content:center;padding:4px 0;color:var(--text-muted);font-size:13px;gap:8px}.flow-arrow:before,.flow-arrow:after{content:"";flex:1;height:1px;background:var(--border)}.arch-flow{display:flex;flex-direction:column}.arch-layer{text-align:center}.arch-label{font-size:14px;color:var(--accent);letter-spacing:2px;margin-bottom:8px}.arch-box{display:inline-block;padding:16px 32px;border-radius:var(--radius);background:var(--bg-card);border:1px solid var(--border);font-size:18px;font-weight:500}.call-chain{display:flex;flex-direction:column;align-items:center;gap:2px}.call-item{padding:10px 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var(--border);font-size:18px}.timeline-item:last-child{border-bottom:none}.timeline-dot{width:12px;height:12px;border-radius:50%;background:var(--accent);margin-top:6px;flex-shrink:0}.timeline-dot.warn{background:var(--warn)}.timeline-dot.ok{background:var(--ok)}.final-summary{max-width:800px;margin:40px auto 0;text-align:center}.final-message{margin-top:40px}.final-message h3{font-size:24px;margin-bottom:16px;color:var(--accent)}.final-message p{font-size:18px;line-height:1.8;color:var(--text-muted)}