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200);--tile-layout-bg:oklch(27% .025 80);--tile-smart-bg:oklch(27% .025 230);--tile-advanced-bg:oklch(27% .025 340);--skeleton-base:var(--neutral-800);--skeleton-shine:var(--neutral-700)}}@media (prefers-contrast:more){:root,:root[data-theme=dark]{--color-border:var(--color-border-strong)}}@media (prefers-contrast:more) and (prefers-color-scheme:dark){:root:not([data-theme=light]):not([data-theme=dark]){--color-border:var(--color-border-strong)}}@media (forced-colors:active){:root{--color-border-focus:Highlight;--focus-ring:0 0 0 var(--focus-ring-width) Highlight}}*,:before,:after{box-sizing:border-box}*{margin:0}html{-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%;text-size-adjust:100%;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-synthesis:none;scroll-behavior:smooth;overflow-x:hidden}@media 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var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);min-height:var(--target-min);display:flex}.df-affiliate-strip-img{width:var(--size-48);height:var(--size-48);object-fit:contain;flex-shrink:0}.df-affiliate-strip-body{gap:var(--space-1);flex-direction:column;flex:1;min-width:0;display:flex}.df-affiliate-strip-label{font-weight:var(--weight-semibold);font-size:var(--text-sm)}.df-affiliate-strip-note{font-size:var(--text-xs);color:var(--color-text-secondary);line-height:var(--leading-normal)}.df-affiliate-strip-cta{font-size:var(--text-sm);font-weight:var(--weight-medium);color:var(--color-accent);white-space:nowrap;flex-shrink:0}@media (width<=639.98px){.df-affiliate-strip{flex-wrap:wrap}.df-affiliate-strip-cta{width:100%}}.df-form{max-width:var(--container-form)}.df-contact-page{max-width:var(--container-page)}.df-contact-header{text-align:center;margin-bottom:var(--space-8)}.df-contact-icon-wrap{width:var(--size-72);height:var(--size-72);border-radius:var(--radius-full);background:var(--color-primary-subtle);margin-bottom:var(--space-4);justify-content:center;align-items:center;display:inline-flex}.df-contact-icon{color:var(--color-primary)}.df-contact-intro{color:var(--color-text-secondary);max-width:var(--container-intro);margin-inline:auto}.df-contact-grid{gap:var(--space-8);grid-template-columns:1fr 1.5fr;align-items:start;display:grid}.df-contact-info{gap:var(--space-4);flex-direction:column;display:flex}.df-contact-info-card{gap:var(--space-3);padding:var(--space-4);background:var(--color-surface);border:var(--border-width-1) solid var(--color-border);border-radius:var(--radius-md);display:flex}.df-contact-info-card strong{font-size:var(--text-sm);font-weight:var(--weight-semibold);margin-bottom:var(--space-1);display:block}.df-contact-info-card span{font-size:var(--text-xs);color:var(--color-text-secondary);line-height:var(--leading-normal)}.df-contact-info-card a{color:var(--color-primary);text-decoration:none}@media (hover:hover){.df-contact-info-card a:hover{text-decoration:underline}}.df-contact-info-icon{color:var(--color-primary);flex-shrink:0}.df-contact-form-wrap{min-width:0}.df-contact-form{gap:var(--space-4);padding:var(--space-6);background:var(--color-surface);border:var(--border-width-1) solid var(--color-border);border-radius:var(--radius-lg);flex-direction:column;display:flex}.df-form-row{gap:var(--space-4);grid-template-columns:1fr 1fr;display:grid}.df-contact-form .df-label{align-items:center;gap:var(--space-1);font-size:var(--text-sm);font-weight:var(--weight-medium);margin-bottom:var(--space-1);display:inline-flex}.df-contact-form .df-label svg{color:var(--color-text-tertiary)}.df-textarea{min-height:var(--size-120);resize:vertical;font-family:inherit}@media (width<=767.98px){.df-contact-grid{gap:var(--space-6);grid-template-columns:1fr}.df-form-row{grid-template-columns:1fr}}.df-loading{justify-content:center;align-items:center;gap:var(--space-3);padding:var(--space-8);color:var(--color-text-secondary);display:flex}.df-lang-switcher{align-items:center;gap:var(--space-2);display:inline-flex}.df-lang-icon{color:var(--color-text-secondary);flex-shrink:0}.df-select-sm{padding:var(--space-1) var(--space-2);font-size:var(--text-xs);border-radius:var(--radius-sm);border:var(--border-width-1) solid var(--color-border);background:var(--color-surface);color:var(--color-text);cursor:pointer}.df-select-sm:focus-visible{outline:var(--focus-ring-width) solid var(--color-border-focus);outline-offset:var(--focus-ring-offset)}.df-account{font-size:var(--text-sm);color:var(--color-text-secondary);overflow-wrap:anywhere;margin:0}.df-account-icon{color:var(--color-success);vertical-align:text-bottom;margin-inline-end:var(--space-1);display:inline-block}.df-account-signout{padding:var(--space-1) var(--space-2);font-size:var(--text-sm);color:var(--color-accent);cursor:pointer;border-radius:var(--radius-sm);background:0 0;border:none;margin-inline-start:var(--space-1);text-decoration:underline}.df-account-signout:focus-visible{outline:var(--focus-ring-width) solid var(--color-border-focus);outline-offset:var(--focus-ring-offset)}.df-tool-category{margin:var(--space-4) 0}.df-tool-category-title{align-items:center;gap:var(--space-2);font-family:var(--font-mono);font-size:var(--text-base);font-weight:var(--weight-medium);text-transform:uppercase;letter-spacing:var(--tracking-widest);color:var(--color-text-secondary);margin-bottom:var(--space-3);padding-bottom:var(--space-2);border-block-end:var(--border-width-1) solid var(--color-border);display:flex}.df-tool-category-title svg{color:var(--color-primary)}.df-tool-grid{gap:var(--space-3);grid-template-columns:repeat(auto-fill,minmax(220px,1fr));display:grid}.df-tool-card{align-items:flex-start;gap:var(--space-3);min-width:0;padding:var(--space-4);color:inherit;text-decoration:none;display:flex}.df-tool-card-icon{width:var(--size-40);height:var(--size-40);background:var(--color-primary-subtle);border-radius:var(--radius-md);color:var(--color-primary);flex-shrink:0;justify-content:center;align-items:center;display:flex}.df-tool-card[data-category=organize] .df-tool-card-icon{background:var(--tile-organize-bg);color:var(--tile-organize-fg)}.df-tool-card[data-category=convert] .df-tool-card-icon{background:var(--tile-convert-bg);color:var(--tile-convert-fg)}.df-tool-card[data-category=edit] .df-tool-card-icon{background:var(--tile-edit-bg);color:var(--tile-edit-fg)}.df-tool-card[data-category=security] .df-tool-card-icon{background:var(--tile-security-bg);color:var(--tile-security-fg)}.df-tool-card[data-category=optimize] .df-tool-card-icon{background:var(--tile-optimize-bg);color:var(--tile-optimize-fg)}.df-tool-card[data-category=split] .df-tool-card-icon{background:var(--tile-split-bg);color:var(--tile-split-fg)}.df-tool-card[data-category=layout] .df-tool-card-icon{background:var(--tile-layout-bg);color:var(--tile-layout-fg)}.df-tool-card[data-category=smart] .df-tool-card-icon{background:var(--tile-smart-bg);color:var(--tile-smart-fg)}.df-tool-card[data-category=advanced] .df-tool-card-icon{background:var(--tile-advanced-bg);color:var(--tile-advanced-fg)}.df-tool-card-body{overflow-wrap:break-word;flex-direction:column;gap:2px;min-width:0;display:flex}.df-tool-card-title{font-size:var(--text-sm);font-weight:var(--weight-semibold);color:var(--color-text);-webkit-hyphens:auto;hyphens:auto}.df-tool-card-desc{font-size:var(--text-xs);color:var(--color-text-secondary);line-height:var(--leading-snug)}.df-cat-grid{gap:var(--space-3);margin:var(--space-4) 0;grid-template-columns:repeat(2,1fr);display:grid}@media (width>=1024px){.df-cat-grid{grid-template-columns:repeat(4,1fr)}}.df-cat-card .df-tool-card-title{font-size:var(--text-base)}.df-cat-card-tools{font-size:var(--text-xs);color:var(--color-text-secondary);line-height:var(--leading-snug);-webkit-line-clamp:2;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.df-cat-card-count{font-family:var(--font-mono);font-size:var(--text-xs);font-weight:var(--weight-medium);text-transform:uppercase;letter-spacing:var(--tracking-wider);color:var(--color-primary)}.df-anchor-target{scroll-margin-top:calc(var(--header-height) + var(--space-4))}.df-tools-header{justify-content:space-between;align-items:flex-end;gap:var(--space-4);margin-bottom:var(--space-2);display:flex}.df-tools-cta{white-space:nowrap;flex-shrink:0}@media (width<=639.98px){.df-tools-cta{display:none}}.df-why-section{background:var(--color-surface);border:var(--border-width-1) solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-4) var(--space-5);margin:var(--space-4) 0}@media 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solid var(--color-border);border-radius:var(--radius-2xl);max-block-size:min(32rem,80dvh);inline-size:min(36rem,100%);box-shadow:var(--shadow-sm);flex-direction:column;display:flex;overflow:hidden}.df-palette-head{border-block-end:var(--border-width-1) solid var(--color-border);align-items:center;display:flex}.df-palette-input{min-inline-size:0;padding:var(--space-3) var(--space-4);color:var(--color-text);font:inherit;font-size:var(--text-lg);background:0 0;border:0;flex:1}.df-palette-input:focus{outline:none}.df-palette-input:focus-visible{outline:var(--focus-ring-width) solid var(--color-border-focus);outline-offset:calc(-1 * var(--focus-ring-offset))}.df-palette-close{min-inline-size:var(--control-height-m);min-block-size:var(--control-height-m);border-radius:var(--radius-md);color:var(--color-text-secondary);cursor:pointer;background:0 0;border:0;flex:none;justify-content:center;align-items:center;margin-inline-end:var(--space-1);display:inline-flex}@media 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