.ic-tool{max-width:1000px;margin:0 auto}.ic-upload{padding:48px;text-align:center;border:2px dashed var(--border);border-radius:var(--radius-lg);cursor:pointer;transition:all .2s}.ic-upload:hover,.ic-upload.drag{border-color:var(--primary);background:var(--bg-secondary)}.ic-upload-icon{font-size:3rem;margin-bottom:12px}.ic-upload p{margin:4px 0}.ic-hint{font-size:.8rem;color:var(--text-secondary)}.ic-convert-area{margin-top:1.5rem}.ic-preview-layout{display:flex;gap:20px;margin-bottom:20px}.ic-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}.ic-preview-header{font-weight:600;color:var(--text);font-size:.9rem;padding-bottom:10px;border-bottom:1px solid var(--border);margin-bottom:12px}.ic-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;margin-bottom:12px;position:relative}.ic-preview-box img{max-width:100%;max-height:400px;object-fit:contain;display:block}#ic-preview-canvas{max-width:100%;max-height:400px;border-radius:var(--radius);display:block}.ic-preview-box.checkerboard{background-image:linear-gradient(45deg,#ddd 25%,transparent 25%),linear-gradient(-45deg,#ddd 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#ddd 75%),linear-gradient(-45deg,transparent 75%,#ddd 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0px;background-color:#f0f0f0}.ic-placeholder{color:var(--text-secondary);text-align:center;padding:2rem}.ic-placeholder-icon{font-size:2.5rem;margin-bottom:.5rem}.ic-placeholder p{font-size:.85rem;margin:0}.ic-info-list{display:flex;flex-direction:column;gap:3px}.ic-info-row{display:flex;font-size:.82rem;padding:2px 0}.ic-info-label{color:var(--text-secondary);min-width:85px;flex-shrink:0}.ic-info-value{color:var(--text);word-break:break-all}.ic-ratio{font-weight:600}.ic-ratio-good{color:#155724}.ic-ratio-warn{color:#856404}.ic-settings{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;margin-bottom:16px;display:flex;flex-wrap:wrap;gap:24px;align-items:flex-start}.ic-setting-group{display:flex;flex-direction:column;gap:6px}.ic-setting-label{font-size:.85rem;font-weight:600;color:var(--text)}.ic-format-buttons{display:flex;gap:8px}.ic-format-btn{padding:6px 18px;font-size:.85rem;font-weight:500;border:1px solid var(--border);border-radius:50px;background:var(--bg);color:var(--text-secondary);cursor:pointer;transition:all .2s}.ic-format-btn:hover{border-color:var(--text-tertiary);color:var(--text)}.ic-format-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.ic-slider{width:200px;cursor:pointer;accent-color:var(--primary)}.ic-quality-hint{font-size:.75rem;color:var(--text-secondary)}.ic-resize-row{display:flex;align-items:center;gap:6px}.ic-num-input{width:70px;padding:6px 8px;font-size:.85rem;text-align:center;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg)}.ic-num-input:focus{outline:none;border-color:var(--primary)}.ic-dim-sep{color:var(--text-secondary);font-size:.85rem}.ic-dim-unit{color:var(--text-secondary);font-size:.8rem}.ic-lock-btn{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);width:30px;height:30px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:.85rem;transition:all .2s;margin-left:4px}.ic-lock-btn.locked{background:var(--primary);border-color:var(--primary)}.ic-resize-presets{display:flex;gap:6px;margin-top:6px}.ic-preset-btn{padding:3px 10px;font-size:.75rem;border:1px solid var(--border);border-radius:50px;background:var(--bg);color:var(--text-secondary);cursor:pointer;transition:all .2s}.ic-preset-btn:hover{border-color:var(--text-tertiary);color:var(--text)}.ic-preset-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.ic-rotate-buttons{display:flex;gap:6px}.ic-rotate-btn{padding:5px 12px;font-size:.8rem;border:1px solid var(--border);border-radius:50px;background:var(--bg);color:var(--text-secondary);cursor:pointer;transition:all .2s}.ic-rotate-btn:hover{border-color:var(--text-tertiary);color:var(--text)}.ic-rotate-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.ic-actions{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:12px}.ic-status{padding:8px 14px;border-radius:var(--radius);font-size:.85rem;display:flex;align-items:center}.ic-status-info{background:var(--bg-secondary);color:var(--text-secondary);border:1px solid var(--border)}.ic-status-success{background:#d4edda;color:#155724;border:1px solid #c3e6cb}.ic-status-error{background:#f8d7da;color:#721c24;border:1px solid #f5c6cb}.faq-section{max-width:800px;margin:0 auto;padding:48px 0}.faq-section h2{font-size:1.75rem;margin-bottom:28px}.faq-item{margin-bottom:24px}.faq-item h3{font-size:1.1rem;margin-bottom:8px}.faq-item p{color:var(--text-secondary);line-height:1.7}@media (max-width: 768px){.ic-preview-layout,.ic-settings{flex-direction:column}.ic-slider{width:100%}}.ic-mode-tabs{display:flex;gap:8px;margin-bottom:20px;border-bottom:2px solid var(--border);padding-bottom:0}.ic-mode-tab{padding:12px 20px;font-size:.95rem;font-weight:600;background:none;border:none;border-bottom:3px solid transparent;cursor:pointer;color:var(--text-secondary);transition:all .15s ease;margin-bottom:-2px;display:flex;align-items:center;gap:8px}.ic-mode-tab:hover{color:var(--text)}.ic-mode-tab.active{color:var(--primary);border-bottom-color:var(--primary)}.ic-tab-badge{font-size:.7rem;font-weight:700;padding:2px 8px;border-radius:999px;text-transform:uppercase}.ic-badge-free{background:var(--success-bg);color:var(--success)}.ic-badge-pro{background:var(--primary-light);color:var(--primary)}.ai-result-area{margin-top:1.5rem}.ai-comparison{display:flex;gap:20px;margin-bottom:20px}.ai-preview-tag{font-size:.7rem;font-weight:600;padding:2px 8px;border-radius:999px;background:var(--warning-bg);color:var(--warning);margin-left:8px;vertical-align:middle}.ai-actions{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:12px;flex-wrap:wrap}.ai-action-info{flex:1;min-width:200px}.ai-credits-info{display:flex;align-items:center;gap:6px;padding:8px 14px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);font-size:.875rem}.ai-credits-icon{font-size:1rem}.ai-action-buttons{display:flex;gap:10px;flex-wrap:wrap}@media (max-width: 768px){.ai-comparison{flex-direction:column}.ai-actions{flex-direction:column;align-items:stretch}}