.colorize-container{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;color:#333;line-height:1.6;-webkit-font-smoothing:antialiased}.hero-section{background:linear-gradient(135deg,#f5f7fa 0%,#e4e8f0 100%);padding:6rem 0 4rem;text-align:center;position:relative;overflow:hidden}.hero-section::before{content:'';position:absolute;top:0;left:0;right:0;height:10px;background:linear-gradient(90deg,#3498db,#2ecc71)}.hero-content{max-width:1200px;margin:0 auto;padding:0 2rem;position:relative;z-index:1}.page-title{font-size:2.8rem;font-weight:800;color:#1a1a1a;margin-bottom:1.5rem;line-height:1.2}.hero-subtitle{font-size:1.25rem;color:#555;max-width:700px;margin:0 auto 3rem;font-weight:400}.hero-image-comparison{max-width:900px;margin:3rem auto;border-radius:12px;overflow:hidden;box-shadow:0 15px 40px rgba(0,0,0,0.12);transform:translateY(0);transition:transform 0.3s ease,box-shadow 0.3s ease}.hero-image-comparison:hover{transform:translateY(-5px);box-shadow:0 20px 50px rgba(0,0,0,0.15)}.comparison-slider{position:relative;width:100%;height:0;padding-bottom:56.25%;overflow:hidden;border-radius:8px}.comparison-slider .before,.comparison-slider .after{position:absolute;top:0;left:0;width:100%;height:100%;overflow:hidden}.comparison-slider .before{width:50%;z-index:2}.comparison-slider .after{width:100%}.comparison-slider img{width:100%;height:100%;object-fit:cover;pointer-events:none}.comparison-slider .before span,.comparison-slider .after span{position:absolute;bottom:20px;padding:8px 16px;background:rgba(0,0,0,0.7);color:white;border-radius:20px;font-size:0.9rem;font-weight:500;z-index:3;backdrop-filter:blur(2px)}.comparison-slider .before span{left:20px}.comparison-slider .after span{right:20px}.slider-handle{position:absolute;top:0;bottom:0;width:4px;background:white;left:50%;transform:translateX(-50%);cursor:ew-resize;z-index:4;box-shadow:0 0 15px rgba(0,0,0,0.3);transition:all 0.2s ease}.slider-handle:hover{width:5px;background:#3498db}.slider-handle:after{content:'';position:absolute;width:36px;height:36px;background:white;border-radius:50%;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 3px 10px rgba(0,0,0,0.2);transition:all 0.2s ease;display:flex;align-items:center;justify-content:center;color:#3498db;font-weight:bold}.slider-handle:hover:after{background:#3498db;color:white;width:40px;height:40px}.upload-section{padding:4rem 0;background:white;position:relative}.upload-section::before{content:'';position:absolute;top:0;left:0;right:0;height:60px;background:linear-gradient(to bottom,#f5f7fa,white)}.upload-card{max-width:900px;margin:0 auto;background:white;border-radius:16px;box-shadow:0 10px 40px rgba(0,0,0,0.08);overflow:hidden;position:relative;z-index:1;border:1px solid rgba(0,0,0,0.05)}.upload-area{padding:4rem 3rem;text-align:center;position:relative;transition:all 0.3s ease}.upload-area.dragover{background:rgba(52,152,219,0.05);border:2px dashed #3498db}.upload-box{border:2px dashed #e0e6ed;border-radius:12px;padding:3.5rem 2rem;cursor:pointer;transition:all 0.3s ease;background:#f9fafc}.upload-box:hover{border-color:#3498db;background:rgba(52,152,219,0.03);transform:translateY(-2px)}.upload-icon{margin:0 auto 1.5rem;width:80px;height:80px;display:flex;align-items:center;justify-content:center;background:rgba(52,152,219,0.1);border-radius:50%;color:#3498db;transition:all 0.3s ease}.upload-box:hover .upload-icon{background:rgba(52,152,219,0.2);transform:scale(1.05)}.upload-box h3{font-size:1.4rem;margin-bottom:0.75rem;color:#1a1a1a;font-weight:600}.upload-box p{color:#6b7280;margin-bottom:0;font-size:1rem}.processing-section{padding:3rem 2rem;text-align:center}.spinner{width:50px;height:50px;border:4px solid rgba(52,152,219,0.2);border-top-color:#3498db;border-radius:50%;margin:0 auto 2rem;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.progress-container{max-width:500px;margin:0 auto}.progress-bar{height:8px;background:#e5e7eb;border-radius:4px;overflow:hidden;margin-bottom:1rem}.progress-fill{height:100%;width:0;background:linear-gradient(90deg,#3498db,#2ecc71);border-radius:4px;transition:width 0.5s ease}.progress-text{color:#4b5563;font-size:1rem;font-weight:500;margin-bottom:0.25rem}.progress-subtext{color:#9ca3af;font-size:0.9rem;margin:0}.result-section{padding:2rem}.result-comparison{display:flex;gap:2rem;margin-bottom:3rem}.before-result,.after-result{flex:1}.before-result h4,.after-result h4{text-align:center;margin-bottom:1.5rem;color:#1a1a1a;font-weight:600;font-size:1.2rem}.before-result img,.after-result img{width:100%;border-radius:12px;box-shadow:0 5px 20px rgba(0,0,0,0.08);transition:transform 0.3s ease}.before-result img:hover,.after-result img:hover{transform:scale(1.02)}.result-actions{display:flex;justify-content:center;gap:1.5rem;flex-wrap:wrap}.btn-download{background:linear-gradient(135deg,#3498db,#2980b9);color:white;border:none;padding:1rem 2rem;border-radius:8px;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:0.75rem;transition:all 0.3s ease;box-shadow:0 4px 15px rgba(52,152,219,0.3);text-decoration:none}.btn-download:hover{background:linear-gradient(135deg,#2980b9,#3498db);transform:translateY(-3px);box-shadow:0 6px 20px rgba(52,152,219,0.4)}.btn-secondary{background:white;color:#3498db;border:1px solid #d1d5db;padding:1rem 2rem;border-radius:8px;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:0.75rem;transition:all 0.3s ease}.btn-secondary:hover{background:#f9fafc;transform:translateY(-3px);border-color:#3498db;box-shadow:0 4px 15px rgba(52,152,219,0.1)}.upload-tips{background:#f9fafc;padding:2.5rem;border-top:1px solid #e5e7eb}.tip-item{display:flex;gap:1.5rem;max-width:600px;margin:0 auto 2rem;align-items:flex-start}.tip-item:last-child{margin-bottom:0}.tip-icon{width:36px;height:36px;background:#3498db;color:white;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;padding:8px}.tip-icon svg{width:18px;height:18px}.tip-content h5{margin:0 0 0.5rem 0;color:#1a1a1a;font-weight:600;font-size:1.1rem}.tip-content p{margin:0;color:#6b7280;font-size:0.95rem;line-height:1.5}@media (max-width:768px){.hero-section{padding:4rem 0 3rem}.page-title{font-size:2.2rem}.hero-subtitle{font-size:1.1rem;margin-bottom:2rem}.hero-image-comparison{margin:2rem 0;border-radius:0}.upload-area{padding:3rem 1.5rem}.upload-box{padding:2.5rem 1.5rem}.result-comparison{flex-direction:column;gap:3rem}.result-actions{flex-direction:column;gap:1rem}.btn-download,.btn-secondary{width:100%;justify-content:center}.upload-tips{padding:2rem 1.5rem}.tip-item{gap:1rem}}.theme-light,.light{background-color:#f3f5f9 !important;color:#000 !important}@media (max-width:480px){.page-title{font-size:1.8rem}.hero-subtitle{font-size:1rem}.upload-box h3{font-size:1.2rem}.upload-box p{font-size:0.9rem}.comparison-slider .before span,.comparison-slider .after span{font-size:0.8rem;padding:6px 12px;bottom:10px}.comparison-slider .before span{left:10px}.comparison-slider .after span{right:10px}}