:root{--tf-accent:#2563eb;--tf-accent-2:#7c3aed;--tf-accent-soft:rgba(37,99,235,.10);--tf-success:#059669;--tf-success-soft:rgba(5,150,105,.12);--tf-text:#0f172a;--tf-text-soft:#475569;--tf-text-muted:#64748b;--tf-page-bg:#f6f7fb;--tf-surface:#ffffff;--tf-surface-2:#f1f3f9;--tf-border:#e5e7eb;--tf-border-strong:#cbd5e1;--tf-radius:14px;--tf-shadow:0 1px 2px rgba(15,23,42,.04),0 4px 14px rgba(15,23,42,.06);--tf-shadow-h:0 6px 14px rgba(15,23,42,.08),0 18px 40px rgba(15,23,42,.12);--tf-max-w:1320px}:root[data-theme="dark"]{--tf-accent:#60a5fa;--tf-accent-2:#a78bfa;--tf-accent-soft:rgba(96,165,250,.14);--tf-success:#34d399;--tf-success-soft:rgba(52,211,153,.15);--tf-text:#e6ebf5;--tf-text-soft:#cbd5e1;--tf-text-muted:#94a3b8;--tf-page-bg:#0b1220;--tf-surface:#111a2c;--tf-surface-2:#18223a;--tf-border:#2a364d;--tf-border-strong:#3b4a6b;--tf-shadow:0 1px 2px rgba(0,0,0,.4),0 4px 14px rgba(0,0,0,.35);--tf-shadow-h:0 6px 14px rgba(0,0,0,.55),0 18px 40px 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11px;font-size:.8rem}.tf-share-label{width:100%;margin-bottom:2px}}.tf-article{background:var(--tf-surface);border:1px solid var(--tf-border);border-radius:16px;padding:28px;color:var(--tf-text-soft);box-shadow:var(--tf-shadow)}.tf-article h2{color:var(--tf-text);font-size:1.25rem;font-weight:700;letter-spacing:-.01em;margin:0 0 10px}.tf-article h3{color:var(--tf-text);font-size:1.02rem;font-weight:600;margin:20px 0 6px}.tf-article p{margin:0 0 12px;font-size:.96rem;line-height:1.7}.tf-article ul,.tf-article ol{padding-left:20px;margin:0 0 12px}.tf-article li{margin-bottom:6px}.tf-article strong{color:var(--tf-text)}.tf-related-card{background:var(--tf-surface);border:1px solid var(--tf-border);border-radius:16px;padding:22px 24px;box-shadow:var(--tf-shadow)}.tf-related-card h2{margin:0 0 12px;color:var(--tf-text);font-size:1.1rem;font-weight:700}.tf-related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px}.tf-related-grid a{display:flex;align-items:center;gap:8px;padding:10px 12px;border-radius:10px;background:var(--tf-surface-2);color:var(--tf-text);border:1px solid var(--tf-border);font-size:.9rem;font-weight:500;transition:border-color .2s,background-color .2s,color .2s}.tf-related-grid a:hover{border-color:var(--tf-accent);color:var(--tf-accent);background:var(--tf-accent-soft);text-decoration:none}.tf-related-grid a i{color:var(--tf-accent);font-size:.85rem;width:18px;text-align:center}.tf-legal{max-width:820px;margin:0 auto;padding:40px 24px 48px}.tf-legal h1{font-size:clamp(1.6rem,1.1rem+1.6vw,2.2rem);font-weight:700;letter-spacing:-.015em;margin:0 0 10px}.tf-legal .tf-lede{color:var(--tf-text-soft);font-size:1.02rem;margin-bottom:22px}.tf-legal h2{font-size:1.2rem;margin:26px 0 8px;color:var(--tf-text)}.tf-legal h3{font-size:1.02rem;margin:18px 0 6px;color:var(--tf-text)}.tf-legal p,.tf-legal li{color:var(--tf-text-soft);line-height:1.7}.tf-legal ul,.tf-legal ol{padding-left:20px}.tf-legal .tf-card-block{background:var(--tf-surface);border:1px solid var(--tf-border);border-radius:16px;padding:24px;margin:18px 0;box-shadow:var(--tf-shadow)}.tf-contact-card{display:flex;align-items:center;gap:14px;padding:14px 16px;border-radius:12px;background:var(--tf-accent-soft);border:1px solid color-mix(in srgb,var(--tf-accent) 35%,transparent);color:var(--tf-text);font-weight:600;margin:12px 0}.tf-contact-card i{color:var(--tf-accent);font-size:1.2rem}.tf-footer{margin-top:40px;background:linear-gradient(180deg,transparent,var(--tf-surface) 22%),var(--tf-surface);border-top:1px solid var(--tf-border);color:var(--tf-text-soft)}.tf-footer-grid{max-width:var(--tf-max-w);margin:0 auto;padding:44px 24px 28px;display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}.tf-footer-col h3{font-size:.82rem;font-weight:700;color:var(--tf-text);text-transform:uppercase;letter-spacing:.08em;margin:0 0 14px}.tf-footer-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.tf-footer-list a{color:var(--tf-text-soft);font-size:.9rem;transition:color .2s,padding-left .2s;display:inline-block}.tf-footer-list a:hover{color:var(--tf-accent);padding-left:4px;text-decoration:none}.tf-footer-list a i{margin-right:8px;font-size:.78rem;color:var(--tf-text-muted)}.tf-footer-brand .tf-logo{margin-bottom:14px}.tf-footer-desc{margin:0 0 18px;font-size:.9rem;line-height:1.55;max-width:380px}.tf-socials{display:inline-flex;align-items:center;gap:8px;flex-wrap:wrap}.tf-socials a{width:36px;height:36px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;background:var(--tf-surface-2);border:1px solid var(--tf-border);color:var(--tf-text-soft);transition:transform .2s,color .2s,background-color .2s,border-color .2s}.tf-socials a:hover{transform:translateY(-2px);color:var(--tf-accent);background:var(--tf-accent-soft);border-color:var(--tf-accent);text-decoration:none}.tf-footer-contact{display:inline-flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;background:var(--tf-surface-2);border:1px solid var(--tf-border);color:var(--tf-text);font-weight:500;font-size:.92rem;margin-bottom:14px}.tf-footer-contact i{color:var(--tf-accent)}.tf-footer-contact:hover{color:var(--tf-accent);text-decoration:none;border-color:var(--tf-accent)}.tf-trust{margin:0;font-size:.82rem;color:var(--tf-text-muted)}.tf-trust i{margin-right:6px;color:var(--tf-success)}.tf-footer-bottom{max-width:var(--tf-max-w);margin:0 auto;padding:18px 24px 22px;border-top:1px solid var(--tf-border);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-size:.85rem;color:var(--tf-text-muted)}.tf-footer-bottom strong{color:var(--tf-text)}.tf-footer-bottom a{color:var(--tf-text-soft);margin:0 6px}@media (max-width:1024px){.tf-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.tf-nav-links,.tf-nav-actions .tf-cta{display:none}.tf-burger{display:inline-flex}.tf-footer-grid{grid-template-columns:1fr 1fr;gap:28px}.tf-footer-brand{grid-column:1 / -1}}@media (max-width:768px){.tf-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.tf-footer-grid{grid-template-columns:1fr;gap:28px;padding:36px 18px 24px}.tf-footer-bottom{flex-direction:column;align-items:flex-start;padding:16px 18px 22px}.tf-tool-hero,.tf-article,.tf-related-card{padding:20px}}@media (max-width:520px){.tf-grid{grid-template-columns:1fr;gap:14px}main.tf-main{padding:22px 14px 36px}.tf-hero-inner{padding:0 14px}.tf-nav-inner{padding:10px 14px;gap:10px}.tf-logo img{height:28px}.tf-logo-mark{height:28px;width:28px}.tf-logo-text{font-size:1.1rem}}@media (prefers-reduced-motion:reduce){.tf-card,.tf-chip,.tf-icon-btn,.tf-cta,.tf-launch-cta{transition:none !important}.tf-card:hover{transform:none !important}}.tf-tool-runner{margin:24px 0;padding:0}#tool-container{background:#fff;border:1px solid var(--tf-border,#e5e7eb);border-radius:16px;padding:28px;box-shadow:0 4px 14px rgba(15,23,42,0.04);min-height:120px}#tool-container .tool-loading{color:#64748b;text-align:center;padding:32px 0;font-style:italic}#tool-container .tool-content,#tool-container .tool-content.active{display:block}#tool-container .tool-header-text h2{font-size:1.4rem;margin:0 0 6px;color:#0f172a}#tool-container .tool-header-text p{margin:0 0 18px;color:#64748b}#tool-container textarea,#tool-container input[type="text"],#tool-container input[type="number"],#tool-container input[type="password"],#tool-container input[type="date"],#tool-container input[type="datetime-local"],#tool-container input[type="email"],#tool-container input[type="url"],#tool-container select{width:100%;padding:12px;border-radius:8px;border:1px solid #d4d8e1;font-family:'Poppins',system-ui,sans-serif;font-size:1rem;transition:border-color 0.2s,box-shadow 0.2s;background:#fff;color:#0f172a}#tool-container textarea:focus,#tool-container input:focus,#tool-container select:focus{outline:none;border-color:#2563eb;box-shadow:0 0 0 3px rgba(37,99,235,0.15)}#tool-container textarea{min-height:150px;resize:vertical}#tool-container label{display:inline-block;margin-bottom:4px;font-weight:500;color:#334155}#tool-container .tf-tool-form,#tool-container .tool-container{display:flex;flex-direction:column;gap:14px}#tool-container .tf-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px}#tool-container .tf-row label{display:flex;flex-direction:column;gap:4px;font-size:0.95rem}#tool-container .tool-buttons{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}#tool-container .tool-buttons button,#tool-container button:not(.tf-share-btn):not(.tf-nav-link):not(.tf-burger):not(.tf-icon-btn){padding:10px 20px;border:none;border-radius:8px;cursor:pointer;font-size:0.95rem;font-weight:600;background-color:#2563eb;color:#fff;transition:background-color 0.2s,transform 0.15s}#tool-container .tool-buttons button:hover,#tool-container button:not(.tf-share-btn):hover:not(:disabled){background-color:#1d4ed8;transform:translateY(-1px)}#tool-container .tool-buttons button.secondary{background-color:#64748b}#tool-container button:disabled{background-color:#cbd5e1 !important;cursor:not-allowed;transform:none !important}#tool-container .tool-output,#tool-container .tf-out,#tool-container .tf-out-ok{margin-top:18px;padding:16px 18px;background-color:#f1f5f9;border-radius:10px;border:1px solid #e2e8f0;word-wrap:break-word}#tool-container .tool-output h4,#tool-container .tf-out h4{margin:0 0 6px;color:#2563eb}#tool-container .tool-output pre{white-space:pre-wrap;word-wrap:break-word;margin:0}#tool-container .tf-out-err{background:#fef2f2;color:#991b1b;border:1px solid #fecaca;padding:12px 14px;border-radius:8px;margin-top:12px}#tool-container .drop-zone{border:2px dashed #cbd5e1;border-radius:10px;padding:36px 20px;text-align:center;cursor:pointer;transition:background-color 0.2s,border-color 0.2s;background-color:#f8fafc}#tool-container .drop-zone.dragover{background-color:#dbeafe;border-color:#2563eb}#tool-container .drop-zone p{margin:0;font-size:1rem;color:#475569}#tool-container .file-input{display:none}#tool-container .btn-process{background-color:#2563eb;color:#fff;padding:12px 25px;border:none;border-radius:8px;cursor:pointer;font-size:1rem;font-weight:600;display:block;margin:22px auto 0;width:100%;max-width:320px;transition:background-color 0.2s}#tool-container .btn-process:hover:not(:disabled){background-color:#1d4ed8}#tool-container .btn-process:disabled{background-color:#cbd5e1;cursor:not-allowed}#tool-container .file-preview-area{margin-top:16px;padding:10px;background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;max-height:200px;overflow-y:auto}#tool-container .file-preview-item{padding:8px 10px;background:#fff;border-radius:6px;margin-bottom:5px;font-size:0.9rem;border:1px solid #e2e8f0}#tool-container .tool-options{margin:16px 0;padding:14px;background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;display:flex;flex-wrap:wrap;gap:12px;align-items:center}#tool-container .tool-options label{margin:0 4px 0 0;font-weight:500}#tool-container .tool-options input,#tool-container .tool-options select{min-width:180px;width:auto;padding:8px}#tool-container .tool-hint{text-align:center;color:#64748b;margin:10px 0}#tool-container .status-area{text-align:center;margin-top:16px;font-weight:500;min-height:1.2em;color:#64748b}#tool-container .download-area{text-align:center;margin-top:16px}#tool-container .tool-download-link,#tool-container .download-area a{display:inline-block;background:#16a34a;color:#fff;padding:10px 20px;border-radius:8px;text-decoration:none;margin:5px;font-weight:500;transition:background-color 0.2s}#tool-container .tool-download-link:hover,#tool-container .download-area a:hover{background-color:#15803d}#tool-container #reorder-preview{display:flex;flex-wrap:wrap;gap:12px;padding:10px;background:#f8fafc;border-radius:8px;min-height:150px;justify-content:center;align-items:center}#tool-container .reorder-page-item{border:1px solid #e2e8f0;padding:5px;background:#fff;text-align:center;cursor:grab;user-select:none;border-radius:6px}#tool-container .reorder-page-item.dragging{opacity:0.5;background:#dbeafe;border-style:dashed}#tool-container .reorder-page-item canvas{width:100px;display:block;margin-bottom:5px;box-shadow:0 2px 5px rgba(0,0,0,0.1)}#tool-container .reorder-page-item span{font-size:0.8rem;font-weight:bold}#tool-container .tf-related{margin-top:18px;padding-top:12px;border-top:1px dashed #e2e8f0;font-size:0.92rem;color:#475569}#tool-container .tf-related a{color:#2563eb;text-decoration:none;margin:0 4px}#tool-container .tf-tool-content{margin-top:22px;padding-top:18px;border-top:1px solid #e2e8f0;font-size:0.95rem;color:#334155}#tool-container .tf-tool-content h4{color:#0f172a;margin-top:14px;margin-bottom:6px}#tool-container #scientific-calculator-container .calc-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}#tool-container #scientific-calculator-container .calc-grid button{padding:18px 0;font-size:1.1rem}#tool-container #typing-speed-test-container #sample-text{user-select:none;background-color:#f1f5f9;padding:14px;border-radius:8px}#tool-container #qr-code-generator-container #qrcode,#tool-container #qrcode{display:flex;justify-content:center;align-items:center;padding:16px;border:1px solid #e2e8f0;border-radius:8px;margin-top:12px}#tool-container #ytd-output img{max-width:200px;border:1px solid #e2e8f0;border-radius:6px;margin-top:6px}#tool-grid[aria-hidden="true"]{display:none !important}@media (max-width:520px){#tool-container{padding:18px;border-radius:12px}#tool-container .tool-options{gap:8px}}:root[data-theme="dark"] #tool-container .drop-zone,:root[data-theme="dark"] #tool-container .file-preview-area,:root[data-theme="dark"] #tool-container .tool-options,:root[data-theme="dark"] #tool-container #reorder-preview,:root[data-theme="dark"] #tool-container #typing-speed-test-container #sample-text{background:var(--tf-surface-2);border-color:var(--tf-border);color:var(--tf-text)}:root[data-theme="dark"] #tool-container .file-preview-item,:root[data-theme="dark"] #tool-container .reorder-page-item{background:var(--tf-surface);border-color:var(--tf-border);color:var(--tf-text)}:root[data-theme="dark"] #tool-container .tool-output,:root[data-theme="dark"] #tool-container .tf-out,:root[data-theme="dark"] #tool-container .tf-out-ok{background:var(--tf-surface-2);color:var(--tf-text)}:root[data-theme="dark"] #tool-container textarea,:root[data-theme="dark"] #tool-container input[type="text"],:root[data-theme="dark"] #tool-container input[type="number"],:root[data-theme="dark"] #tool-container input[type="password"],:root[data-theme="dark"] #tool-container input[type="date"],:root[data-theme="dark"] #tool-container input[type="datetime-local"],:root[data-theme="dark"] #tool-container input[type="email"],:root[data-theme="dark"] #tool-container input[type="url"],:root[data-theme="dark"] #tool-container select{background:var(--tf-surface);border-color:var(--tf-border);color:var(--tf-text)}:root[data-theme="dark"] #tool-container label,:root[data-theme="dark"] #tool-container .tool-header-text h2,:root[data-theme="dark"] #tool-container .tf-tool-content,:root[data-theme="dark"] #tool-container .tf-tool-content h4{color:var(--tf-text)}:root[data-theme="dark"] #tool-container .tool-hint,:root[data-theme="dark"] #tool-container .status-area{color:var(--tf-text-soft)}:root[data-theme="dark"] #tool-container{background:var(--tf-surface);border-color:var(--tf-border);color:var(--tf-text);box-shadow:var(--tf-shadow)}:root[data-theme="dark"] #tool-container .tool-header-text p,:root[data-theme="dark"] #tool-container .drop-zone p,:root[data-theme="dark"] #tool-container .tf-related,:root[data-theme="dark"] #tool-container .tool-loading{color:var(--tf-text-soft)}:root[data-theme="dark"] #tool-container .tf-related a{color:var(--tf-accent)}