:root{--paper:#F5F4EF;--sheet:#FFFFFF;--ink:#1F2A3D;--ink-soft:#5E6779;--accent:#4A5D7E;--accent-hover:#3E5070;--marker:#F0D66E;--success:#5A8B6F;--alert:#B85450;--line:#E5E3DB;--radius:10px;--radius-lg:14px;--shadow-sm:0 1px 2px rgba(31,42,61,.04),0 0 0 1px var(--line);--font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}*{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%}body{font-family:var(--font);background:var(--paper);color:var(--ink);line-height:1.55;font-size:16px;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover)}button{font-family:inherit;cursor:pointer;border:0;border-radius:var(--radius);transition:background .15s,opacity .15s,transform .05s}button:active{transform:translateY(1px)}button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.container{max-width:960px;margin:0 auto;padding:0 24px}.site-header{padding:20px 0;border-bottom:1px solid var(--line);background:var(--sheet)}.site-header .container{display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{font-weight:700;font-size:20px;letter-spacing:.2px;color:var(--ink)}.lang-nav{display:flex;gap:2px;flex-wrap:wrap}.lang-link{font-size:13px;font-weight:600;letter-spacing:.3px;color:var(--ink-soft);padding:6px 9px;border-radius:7px;transition:background .15s,color .15s}.lang-link:hover{background:var(--paper);color:var(--ink)}.lang-link.active{background:var(--ink);color:#fff}.hero{padding:72px 0 56px}.hero h1{font-size:clamp(30px,5.2vw,46px);line-height:1.12;font-weight:700;letter-spacing:-.01em;max-width:680px;margin-bottom:20px}.hero h1 .hl{background:linear-gradient(transparent 60%,var(--marker) 60%);padding:0 2px}.hero p.lead{font-size:18px;color:var(--ink-soft);max-width:580px;margin-bottom:36px}.card{background:var(--sheet);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:32px}.uploader{text-align:center}.uploader .drop{border:1.5px dashed #c7cbbf;border-radius:var(--radius);padding:44px 24px;transition:border-color .15s,background .15s}.uploader .drop:hover{border-color:var(--accent);background:#FBFAF5}.uploader .ico{font-size:30px;margin-bottom:10px}.uploader .drop b{font-size:16px;display:block;margin-bottom:6px}.uploader .drop small{color:var(--ink-soft);font-size:13.5px}.uploader .actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:20px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;padding:12px 20px;min-height:48px}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn:disabled{background:var(--line);color:var(--ink-soft);cursor:not-allowed}.btn-secondary{background:var(--sheet);color:var(--ink);border:1px solid var(--line)}.btn-secondary:hover{border-color:var(--accent)}.how{padding:56px 0 72px}.how h2{font-size:22px;font-weight:600;margin-bottom:24px}.how-steps{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:16px;gap:16px}.how-step{background:var(--sheet);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:20px}.how-step .n{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--paper);color:var(--ink-soft);font-size:13px;font-weight:600;margin-bottom:12px}.how-step h3{font-size:15px;font-weight:600;margin-bottom:6px}.how-step p{font-size:14px;color:var(--ink-soft);line-height:1.5}.site-footer{border-top:1px solid var(--line);padding:28px 0;font-size:13px;color:var(--ink-soft);background:var(--sheet)}.site-footer .container{display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;align-items:center}.trust-row{display:flex;gap:8px;flex-wrap:wrap}.trust-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;background:var(--paper);border:1px solid var(--line);border-radius:20px;color:var(--ink)}@media (max-width:640px){.container{padding:0 16px}.hero{padding:36px 0 28px}.card{padding:20px;border-radius:var(--radius)}.uploader .drop{padding:30px 16px}.uploader .actions .btn{flex:1 1 100%}.how{padding:36px 0 52px}.how-steps{grid-template-columns:1fr}.site-header{padding:14px 0}.site-footer .container{flex-direction:column;align-items:flex-start}}.uploader .drop{cursor:pointer}.pages{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}.page-thumb{position:relative;width:96px;height:128px;border-radius:8px;overflow:hidden;border:1px solid var(--line);background:var(--paper)}.page-thumb img{width:100%;height:100%;object-fit:cover;display:block}.pdf-badge{width:100%;height:100%;font-size:13px;font-weight:700;color:var(--ink-soft);letter-spacing:.5px}.page-remove,.pdf-badge{display:flex;align-items:center;justify-content:center}.page-remove{position:absolute;top:4px;right:4px;width:22px;height:22px;line-height:1;border-radius:50%;background:rgba(31,42,61,.7);color:#fff;font-size:15px}.page-remove:hover{background:var(--alert)}.alert-box{margin-top:16px;padding:12px 16px;border-radius:var(--radius);background:#FBF0EF;border:1px solid #e8cfcc;color:#8A3A34;font-size:14px;text-align:left}.result{margin-top:24px}.sheet{background:var(--sheet);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden}.sheet-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;padding:22px 24px 18px;border-bottom:1px solid var(--line)}.sheet-head 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