:root{--primary: #2563eb;--primary-hover: #1d4ed8;--bg-color: #f8fafc;--card-bg: #ffffff;--text-main: #0f172a;--text-muted: #64748b;--border-color: #e2e8f0;--dropzone-bg: #f1f5f9;--dropzone-border: #cbd5e1;--dropzone-hover: #eff6ff;--dropzone-hover-border: #93c5fd;--success: #10b981;--error: #ef4444}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.6;color:var(--text-main);background-color:var(--bg-color);margin:0;padding:0;-webkit-font-smoothing:antialiased}.hero{text-align:center;padding:60px 20px 40px}h1{font-size:2.5rem;font-weight:800;letter-spacing:-.025em;color:var(--text-main);margin:0 0 16px}.subtitle{font-size:1.125rem;color:var(--text-muted);max-width:600px;margin:0 auto}.related-tools{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:24px;margin-bottom:-16px}.related-tools a{font-size:.85rem;font-weight:500;color:var(--text-muted);background:var(--dropzone-bg);padding:6px 14px;border-radius:20px;text-decoration:none;border:1px solid var(--border-color);transition:all .2s ease}.related-tools a:hover{color:var(--primary);border-color:var(--dropzone-hover-border);background:var(--dropzone-hover)}.related-tools a.current{background:var(--primary);color:#fff;border-color:var(--primary);pointer-events:none}.container{max-width:900px;margin:0 auto;padding:0 20px 80px}.tool-widget{background:var(--card-bg);border-radius:24px;box-shadow:0 20px 25px -5px #0000000d,0 8px 10px -6px #00000003;padding:40px;margin:0 auto 60px;border:1px solid var(--border-color)}.drop-zone{border:2px dashed var(--dropzone-border);border-radius:16px;background:var(--dropzone-bg);padding:60px 20px;text-align:center;cursor:pointer;transition:all .2s ease;display:flex;flex-direction:column;align-items:center;justify-content:center}.drop-zone:hover,.drop-zone.dragover{background:var(--dropzone-hover);border-color:var(--dropzone-hover-border)}.drop-zone-icon{font-size:3.5rem;line-height:1;margin-bottom:20px;filter:drop-shadow(0 4px 6px rgba(0,0,0,.1))}.drop-zone h3{font-size:1.5rem;font-weight:600;margin:0 0 8px;color:var(--text-main)}.drop-zone p{font-size:1rem;color:var(--text-muted);margin:0 0 24px}.btn-upload{background-color:var(--primary);color:#fff;padding:12px 28px;border-radius:8px;font-weight:600;font-size:1.05rem;border:none;cursor:pointer;box-shadow:0 4px 6px -1px #2563eb33;transition:background-color .2s,transform .1s;display:inline-block}.btn-upload:hover{background-color:var(--primary-hover);transform:translateY(-1px)}.file-list{margin-top:24px;display:flex;flex-direction:column;gap:12px}.file-item{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:var(--card-bg);border:1px solid var(--border-color);border-radius:12px;box-shadow:0 1px 3px #0000000d}.file-name{font-weight:500;color:var(--text-main);flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-right:20px}.file-status{color:var(--text-muted);font-size:.9rem;font-weight:500;width:auto;min-width:120px;white-space:nowrap;text-align:center}.file-action{width:120px;text-align:right}.actions-bar{display:flex;justify-content:space-between;align-items:center;margin-top:24px;padding-top:24px;border-top:1px solid var(--border-color)}.btn{padding:10px 20px;border-radius:8px;font-weight:500;font-size:.95rem;border:1px solid var(--border-color);background:var(--card-bg);color:var(--text-main);cursor:pointer;transition:all .2s}.btn:hover{background:var(--dropzone-bg)}.btn-primary{background:var(--primary);color:#fff;border:none}.btn-primary:hover{background:var(--primary-hover)}.btn:disabled{opacity:.5;cursor:not-allowed}.options-bar{display:flex;justify-content:center;align-items:center;margin-bottom:24px;gap:12px}.options-bar label{font-weight:600;color:var(--text-main)}.options-bar select{padding:8px 16px;border-radius:8px;border:1px solid var(--border-color);background:var(--card-bg);color:var(--text-main);font-size:1rem;font-weight:500;cursor:pointer;outline:none;box-shadow:0 1px 2px #0000000d}.content-section{margin-top:60px}h2{font-size:1.75rem;font-weight:700;color:var(--text-main);margin-bottom:24px;letter-spacing:-.01em}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;margin-bottom:40px}.feature-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:16px;padding:24px;box-shadow:0 1px 3px #00000005}.feature-icon{font-size:1.75rem;margin-bottom:16px;display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;background:var(--dropzone-bg);border-radius:12px;color:var(--primary)}.feature-card h3{font-size:1.25rem;font-weight:600;margin:0 0 12px}.feature-card p{margin:0;color:var(--text-muted);font-size:1rem;line-height:1.5}.faq-list{display:flex;flex-direction:column;gap:16px}.faq-box{background:var(--card-bg);border:1px solid var(--border-color);border-radius:16px;padding:24px}.faq-q{font-size:1.125rem;font-weight:600;color:var(--text-main);margin-bottom:10px}.faq-a{color:var(--text-muted);line-height:1.6}.cta-middle{text-align:center;margin:-20px auto 60px}.cta-button{display:inline-flex;align-items:center;justify-content:center;background:var(--card-bg);color:var(--primary);border:2px solid var(--primary);padding:14px 32px;border-radius:12px;text-decoration:none;font-weight:600;font-size:1.1rem;box-shadow:0 4px 6px -1px #2563eb1a;transition:all .2s}.cta-button:hover{background:var(--primary);color:#fff;transform:translateY(-2px);box-shadow:0 10px 15px -3px #2563eb33}input[type=file]{display:none}@media (max-width: 768px){h1{font-size:2rem}.tool-widget{padding:24px}.drop-zone{padding:40px 16px}.file-item{flex-direction:column;gap:12px;text-align:center}.file-name{margin-right:0}.file-status,.file-action{width:100%;text-align:center}.actions-bar{flex-direction:column;gap:16px}.btn{width:100%}}