:root{--bg:#f7f9fc;--surface:#fff;--text:#172033;--muted:#64748b;--line:#e2e8f0;--primary:#2563eb;--primary-dark:#1d4ed8;--success:#15803d;--danger:#b91c1c;--radius:16px;--shadow:0 10px 30px rgba(15,23,42,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.6}.container{width:min(1100px,calc(100% - 32px));margin:auto}.tool-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.tool-header-inner{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-size:1.45rem;font-weight:800;text-decoration:none;color:var(--text)}.tool-nav{display:flex;gap:18px}.tool-nav a{color:var(--muted);text-decoration:none;font-weight:600}.tool-nav a:hover{color:var(--primary)}.tool-main{padding:56px 0 80px}.tool-hero{text-align:center;max-width:760px;margin:0 auto 34px}.tool-hero h1{font-size:clamp(2rem,5vw,3.1rem);line-height:1.1;margin:0 0 14px}.tool-hero p{color:var(--muted);font-size:1.05rem;margin:0}.tool-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px;max-width:900px;margin:auto}.drop-zone{display:block;border:2px dashed #cbd5e1;border-radius:14px;padding:38px 20px;text-align:center;background:#f8fafc;cursor:pointer}.drop-zone.dragover{border-color:var(--primary);background:#eff6ff}.drop-zone strong{display:block;font-size:1.05rem}.drop-zone span{display:block;color:var(--muted);margin-top:5px}.btn{border:0;border-radius:10px;padding:11px 17px;font:inherit;font-weight:700;cursor:pointer;background:var(--primary);color:#fff}.btn:hover{background:var(--primary-dark)}.btn.secondary{background:#e2e8f0;color:#172033}.btn:disabled{opacity:.55;cursor:not-allowed}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.status{min-height:24px;margin-top:14px;color:var(--muted)}.status.success{color:var(--success)}.status.error{color:var(--danger)}.preview{margin-top:22px;text-align:center}.preview img{max-width:100%;max-height:520px;border:1px solid var(--line);border-radius:12px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-top:20px}.field{display:flex;flex-direction:column;gap:7px}.field label{font-weight:700}.field input,.field select,.field textarea{font:inherit;border:1px solid #cbd5e1;border-radius:9px;padding:10px;background:#fff}.field textarea{min-height:220px;resize:vertical}.file-list{display:grid;gap:10px;margin-top:18px}.file-item{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--line);border-radius:10px;padding:11px 13px;background:#fff}.small{font-size:.9rem;color:var(--muted)}.result{margin-top:24px;padding-top:22px;border-top:1px solid var(--line)}.qr-wrap{display:flex;justify-content:center;margin:20px 0}.tool-footer{text-align:center;color:var(--muted);padding:30px 0}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px}.tool-card-link{display:block;text-decoration:none;color:inherit;border:1px solid var(--line);border-radius:14px;padding:20px;background:#fff;height:100%}.tool-card-link h2{margin:0 0 8px;font-size:1.15rem}.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:650px){.tool-header-inner{align-items:flex-start;padding:13px 0;flex-direction:column}.tool-nav{gap:12px;flex-wrap:wrap}.tool-main{padding-top:36px}.tool-card{padding:20px}.drop-zone{padding:30px 14px}.file-item{align-items:flex-start;flex-direction:column}}