.st-tool{max-width:1000px;margin:0 auto}.st-privacy-badge{display:flex;align-items:center;gap:8px;padding:10px 16px;background:var(--success-bg, #d4edda);border:1px solid var(--success, #28a745);border-radius:var(--radius);font-size:.875rem;color:#155724;margin-bottom:20px}.st-privacy-icon{font-size:1.1rem;flex-shrink:0}.st-upload{padding:56px 32px;text-align:center;border:2px dashed var(--border);border-radius:var(--radius-lg);cursor:pointer;transition:all .2s;background:var(--bg-secondary)}.st-upload:hover,.st-upload.drag{border-color:var(--primary);background:var(--primary-light, rgba(79, 70, 229, .05))}.st-upload-icon{font-size:3.5rem;margin-bottom:16px}.st-upload-text{font-size:1.1rem;margin:4px 0}.st-upload-text strong{color:var(--primary)}.st-upload-hint{font-size:.85rem;color:var(--text-secondary);margin-top:4px}.st-style-panel{padding:24px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg)}.st-style-title{font-size:1.1rem;font-weight:600;margin-bottom:16px;color:var(--text)}.st-style-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-bottom:24px}.st-style-card{display:flex;flex-direction:column;align-items:center;gap:4px;padding:16px 8px;border:2px solid var(--border);border-radius:var(--radius);background:var(--bg);cursor:pointer;transition:all .2s}.st-style-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:0 4px 12px #00000014}.st-style-card.selected{border-color:var(--primary);background:var(--primary-light, rgba(79, 70, 229, .1));box-shadow:0 0 0 2px var(--primary)}.st-style-emoji{font-size:2rem}.st-style-name{font-weight:600;font-size:.9rem;color:var(--text)}.st-style-desc{font-size:.75rem;color:var(--text-secondary)}.st-apply-row{display:flex;align-items:center;gap:20px}.st-preview-wrap{position:relative;flex-shrink:0}.st-preview-img{width:80px;height:80px;object-fit:cover;border-radius:var(--radius);border:1px solid var(--border)}.st-preview-dims{position:absolute;bottom:4px;right:4px;background:#000000b3;color:#fff;font-size:.65rem;padding:1px 4px;border-radius:3px}.st-apply-btn{font-size:1.1rem;font-weight:600;padding:12px 32px}.st-loading{text-align:center;padding:48px 32px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg)}.st-loading-icon{font-size:3rem;margin-bottom:16px;animation:stPulse 1.5s ease-in-out infinite}@keyframes stPulse{0%,to{opacity:1}50%{opacity:.5}}.st-loading-title{font-size:1.2rem;font-weight:600;color:var(--text);margin-bottom:6px}.st-loading-hint{font-size:.85rem;color:var(--text-secondary);margin-bottom:24px}.st-progress-track{width:100%;max-width:400px;height:8px;background:var(--bg-tertiary, #e5e7eb);border-radius:999px;overflow:hidden;margin:0 auto 10px}.st-progress-fill{height:100%;background:var(--primary);border-radius:999px;transition:width .3s ease}.st-progress-text{font-size:.82rem;color:var(--text-secondary)}.st-processing{text-align:center;padding:60px 20px}.st-spinner{width:48px;height:48px;border:4px solid var(--bg-tertiary, #e5e7eb);border-top-color:var(--primary);border-radius:50%;margin:0 auto 20px;animation:stSpin .8s linear infinite}@keyframes stSpin{to{transform:rotate(360deg)}}.st-processing-title{font-size:1.15rem;font-weight:500;color:var(--text)}.st-processing-hint{margin-top:6px;font-size:.9rem;color:var(--text-secondary)}.st-comparison{display:flex;gap:20px;margin-bottom:20px}.st-preview-panel{flex:1;min-width:0;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px;display:flex;flex-direction:column}.st-preview-header{font-weight:600;color:var(--text);font-size:.9rem;padding-bottom:10px;border-bottom:1px solid var(--border);margin-bottom:12px}.st-dims{font-weight:400;color:var(--text-secondary);font-size:.8rem}.st-style-label-text{font-weight:600;color:var(--primary);font-size:.9rem}.st-preview-box{background:#f0f0f0;border:1px solid var(--border);border-radius:var(--radius);min-height:200px;display:flex;align-items:center;justify-content:center;overflow:hidden}.st-preview-box img{max-width:100%;max-height:400px;object-fit:contain;display:block}.st-info-bar{display:flex;gap:20px;flex-wrap:wrap;padding:12px 16px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:16px}.st-info-item{font-size:.85rem;color:var(--text-secondary)}.st-info-item strong{color:var(--text)}.st-actions{display:flex;gap:10px;flex-wrap:wrap}.st-download-btn{font-size:1.05rem;font-weight:600}.st-error{text-align:center;padding:60px 20px}.st-error-icon{font-size:3rem;margin-bottom:16px}.st-error-msg{font-size:1.05rem;color:var(--text-secondary);margin-bottom:20px}.faq-section{max-width:800px;margin:48px auto 0}.faq-section h2{font-size:1.75rem;margin-bottom:28px}.faq-item{margin-bottom:16px;padding:16px 20px;background:var(--bg-secondary, #f8f9fa);border-radius:var(--radius, 8px);border-left:3px solid var(--primary, #4f46e5)}.faq-item h3{font-size:1.05rem;font-weight:600;margin-bottom:8px;color:var(--text, #1f2937)}.faq-item p{color:var(--text-secondary, #6b7280);line-height:1.7;margin:0;font-size:.95rem}.faq-item a{color:var(--primary, #4f46e5);text-decoration:none}.faq-item a:hover{text-decoration:underline}@media (max-width: 768px){.st-comparison{flex-direction:column}.st-upload{padding:40px 20px}.st-info-bar{flex-direction:column;gap:8px}.st-style-grid{grid-template-columns:repeat(3,1fr)}.st-apply-row{flex-direction:column;align-items:stretch}.st-apply-btn{width:100%}}@media (max-width: 480px){.st-style-grid{grid-template-columns:repeat(2,1fr)}}