.tutorial-series-container{max-width:1400px;margin:0 auto;padding:2rem}.series-section{margin-bottom:4rem}.series-header{display:flex;align-items:center;gap:1.5rem;margin-bottom:1.5rem;padding:1.5rem;background:var(--bg-secondary);border:2px solid var(--accent-cyan);border-radius:12px;box-shadow:var(--glow-cyan)}.series-icon{font-size:3rem;flex-shrink:0}.series-info{flex:1 1}.series-title{font-family:VT323,Noto Sans TC,monospace;font-size:1.8rem;color:var(--accent-cyan);margin-bottom:.5rem;text-shadow:var(--glow-cyan)}.series-description{color:var(--text-secondary);font-size:1rem;line-height:1.6}.series-count{display:flex;flex-direction:column;align-items:center;padding:1rem;background:var(--bg-tertiary);border:1px solid var(--accent-pink);border-radius:8px;min-width:80px}.count-number{font-family:Press Start\ 2P,cursive;font-size:2rem;color:var(--accent-pink);text-shadow:var(--glow-pink)}.count-label{font-size:.85rem;color:var(--text-secondary);margin-top:.25rem}.series-grid{display:flex;flex-direction:column;gap:.5rem;background:var(--bg-secondary);border-radius:8px;padding:1rem}.tutorial-card{display:flex;align-items:center;gap:1.5rem;padding:1rem 1.5rem;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:6px;text-decoration:none;color:inherit;transition:all .3s ease}.tutorial-card:hover{border-color:var(--accent-cyan);background:rgba(0,255,249,.05);transform:translateX(5px)}.tutorial-number{font-family:IBM Plex Mono,monospace;font-weight:700;font-size:1rem;color:var(--accent-cyan);padding:.25rem .75rem;background:var(--bg-primary);border-radius:4px;flex-shrink:0;min-width:60px;text-align:center}.tutorial-title{font-family:Noto Sans TC,sans-serif;font-size:1.1rem;font-weight:700;color:var(--text-primary);margin:0;flex:1 1}.tutorial-description{font-size:.85rem;color:var(--text-secondary);line-height:1.4;margin:0;flex:2 1;display:-webkit-box;-webkit-line-clamp:1;line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}.tutorial-arrow{color:var(--accent-pink);font-size:1.2rem;transition:transform .3s ease;flex-shrink:0}.tutorial-card:hover .tutorial-arrow{transform:translateX(3px)}.series-empty{padding:2rem;background:var(--bg-secondary);border:2px dashed var(--border-color);border-radius:10px;text-align:center}.empty-terminal{font-family:IBM Plex Mono,Noto Sans TC,monospace;color:var(--text-secondary)}.empty-text{color:var(--accent-cyan);margin-bottom:.5rem}.empty-hint{color:var(--text-secondary);font-size:.9rem}.empty-hint:before{content:"⏳ "}@media (max-width:768px){.series-header{flex-direction:column;text-align:center}.series-title{font-size:1.4rem}.tutorial-card{flex-wrap:wrap;gap:1rem}.tutorial-description{width:100%;order:3}.series-icon{font-size:2.5rem}}@media (max-width:480px){.series-header,.tutorial-card,.tutorial-series-container{padding:1rem}.tutorial-title{font-size:.95rem}.tutorial-description{font-size:.8rem}}