:root{--bg: #f7f8fa;--surface: #ffffff;--text: #1a202c;--muted: #5a6472;--primary: #2563eb;--primary-dark: #1d4ed8;--green: #15803d;--red: #b91c1c;--border: #d8dee6;--radius: 12px;--shadow: 0 1px 3px rgba(16, 24, 40, .08), 0 4px 16px rgba(16, 24, 40, .06)}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}.app{display:flex;flex-direction:column;min-height:100vh}main{flex:1;width:100%;max-width:880px;margin:0 auto;padding:0 20px 64px}.site-header{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;background:var(--surface);border-bottom:1px solid var(--border)}.logo{font-weight:700;font-size:1.15rem;color:var(--text);text-decoration:none}.logo-mark{color:var(--primary)}.site-header nav{display:flex;gap:20px}.site-header nav a{color:var(--muted);text-decoration:none;font-size:.95rem}.site-header nav a:hover,.site-header nav a.active{color:var(--primary)}.hero{text-align:center;padding:40px 0 8px}.hero h1{font-size:clamp(1.6rem,4vw,2.4rem);margin:0 0 8px}.tagline{color:var(--muted);font-size:1.08rem;max-width:640px;margin:0 auto 16px}.trust-strip{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 22px;font-size:.9rem;color:var(--muted);margin-bottom:24px}.converter{margin-top:8px}.dropzone{background:var(--surface);border:2px dashed var(--border);border-radius:var(--radius);padding:40px 24px;text-align:center;transition:border-color .15s,background .15s;box-shadow:var(--shadow)}.dropzone.dragover{border-color:var(--primary);background:#f0f5ff;outline:none}.dz-title{font-size:1.25rem;font-weight:600;margin:0 0 16px}.dz-buttons{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin:0 0 16px}.dz-sub{margin:0 0 10px;color:var(--muted)}.dz-hint{margin:0;font-size:.85rem;color:var(--muted)}.link{color:var(--primary);text-decoration:underline}.link-btn{background:none;border:none;padding:0;color:var(--primary);text-decoration:underline;cursor:pointer;font:inherit}.settings{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;margin-top:16px;box-shadow:var(--shadow)}.setting{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;margin-bottom:12px}.setting label{font-weight:600;font-size:.95rem;min-width:110px}.setting select,.setting input[type=text],.setting input[type=number]{padding:8px 10px;border:1px solid var(--border);border-radius:8px;font:inherit;background:#fff;color:var(--text);min-height:48px}.setting input[type=range]{flex:1;max-width:320px;accent-color:var(--primary)}.setting.checkbox label{font-weight:400;min-width:0}.advanced-toggle{margin:4px 0 10px;font-size:.92rem}.advanced{border-top:1px solid var(--border);padding-top:14px}.privacy-note{font-size:.88rem;color:var(--muted);margin:6px 0 0}.muted{color:var(--muted);font-weight:400;font-size:.85rem}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:10px 20px;border-radius:8px;border:1px solid var(--border);background:var(--surface);color:var(--text);font:inherit;font-weight:600;cursor:pointer;transition:background .15s}.btn:hover:not(:disabled){background:#eef1f5}.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn.primary:hover:not(:disabled){background:var(--primary-dark)}.btn.ghost{border-color:transparent;background:transparent;color:var(--muted)}.btn.small{padding:6px 12px;font-size:.85rem}.btn:disabled{opacity:.55;cursor:not-allowed}.btn:focus-visible{outline:3px solid #93c5fd;outline-offset:1px}.inline-cta{text-decoration:none;display:inline-block}.breadcrumb{margin:4px 0 8px}.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:0;font-size:.85rem;color:var(--muted)}.breadcrumb li{display:flex;align-items:center;gap:6px}.breadcrumb li+li:before{content:"›";color:var(--muted)}.breadcrumb a{color:var(--muted);text-decoration:none}.breadcrumb a:hover{color:var(--primary);text-decoration:underline}.breadcrumb li[aria-current=page]{color:var(--text);font-weight:600}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.progress{height:8px;background:#e6eaf0;border-radius:999px;margin-top:14px;overflow:hidden}.progress-bar{height:100%;background:var(--primary);transition:width .2s}.notice{margin:12px 0 0;padding:10px 14px;border-radius:8px;background:#fff7ed;border:1px solid #fdba74;color:#9a3412;font-size:.92rem}.notice.info{background:#eff6ff;border-color:#93c5fd;color:#1e40af}.queue{list-style:none;margin:16px 0 0;padding:0;display:flex;flex-direction:column;gap:8px}.q-item{display:flex;align-items:center;gap:12px;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:10px 14px}.q-item.error{border-color:#fecaca;background:#fff5f5}.q-item.done{border-color:#bbf7d0}.q-thumb{width:48px;height:48px;flex-shrink:0;border-radius:6px;overflow:hidden;background:#eef1f5;display:flex;align-items:center;justify-content:center}.q-thumb img{width:100%;height:100%;object-fit:cover}.q-ph{font-size:1.3rem}.q-info{flex:1;min-width:0;display:flex;flex-direction:column}.q-name{font-weight:600;font-size:.93rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.q-meta{font-size:.84rem;color:var(--muted)}.q-error{font-size:.84rem;color:var(--red)}.saved{color:var(--green);font-weight:600}.q-actions{display:flex;gap:6px;flex-shrink:0}.content-block,.content-page{margin-top:48px}.content-page{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:32px 36px;margin-top:32px;box-shadow:var(--shadow)}.content-page.center{text-align:center}.content-block h2,.content-page h2{font-size:1.3rem;margin:28px 0 10px}.content-page h1{margin-top:0}.updated{color:var(--muted);font-size:.88rem}.lead{font-size:1.08rem;line-height:1.55;margin:8px 0 18px}.table-wrap{overflow-x:auto;margin:14px 0}.facts-table{border-collapse:collapse;width:100%;font-size:.95rem}.facts-table th,.facts-table td{border:1px solid var(--border);padding:8px 12px;text-align:left;vertical-align:top}.facts-table thead th{background:var(--bg);font-weight:600}.facts-table tbody th[scope=row]{background:var(--bg);font-weight:600;white-space:nowrap}.facts-table.compare td{color:var(--muted)}kbd{font:.85em ui-monospace,SFMono-Regular,Menlo,monospace;background:var(--bg);border:1px solid var(--border);border-radius:5px;padding:1px 6px}.steps{padding-left:22px}.steps li{margin-bottom:8px}details{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:12px 16px;margin-bottom:8px}details summary{font-weight:600;cursor:pointer}details p{margin:10px 0 2px;color:var(--muted)}.pair-grid{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:8px}.pair-grid a{display:block;padding:10px 14px;background:var(--surface);border:1px solid var(--border);border-radius:8px;color:var(--primary);text-decoration:none;font-size:.92rem}.pair-grid a:hover{border-color:var(--primary)}.contact-email{font-size:1.2rem}.site-footer{background:#11151c;color:#c4ccd6;padding:40px 24px 20px;margin-top:64px}.footer-cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:28px;max-width:980px;margin:0 auto}.site-footer h3{color:#fff;font-size:.95rem;margin:0 0 10px}.site-footer ul{list-style:none;margin:0;padding:0}.site-footer li{margin-bottom:6px}.site-footer a{color:#c4ccd6;text-decoration:none;font-size:.88rem}.site-footer a:hover{color:#fff}.promise{font-size:.88rem}.copyright{text-align:center;font-size:.8rem;color:#76808d;margin:28px 0 0}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}@media (max-width: 600px){.content-page{padding:22px 18px}.setting label{min-width:0;width:100%}}