@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--radius-sm:.25rem;--radius-md:.375rem;--ease-out:cubic-bezier(0, 0, .2, 1);--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.start{inset-inline-start:var(--spacing)}.end{inset-inline-end:var(--spacing)}.block{display:block}.table{display:table}.lowercase{text-transform:lowercase}.uppercase{text-transform:uppercase}}:root{--ink:#1e1a14;--ink-soft:#544f47;--ink-muted:#7e7a73;--canvas:#f7f5f1;--surface:#fdfbf9;--surface-soft:#f0ece7;--surface-deep:#17130e;--line:#d8d3cd;--line-strong:#ada79e;--accent:#bc872f;--accent-dark:#734d00;--accent-soft:#f6e5cf;--success:#2e7b3f;--success-soft:#e0f5e2;--danger:#b6322b;--danger-soft:#ffe8e5;--info-soft:#e0f1fe;--focus:#007dc6;--radius-sm:4px;--radius-md:8px;--ease-out:cubic-bezier(.16, 1, .3, 1)}@supports (color:lab(0% 0 0)){:root{--ink:lab(9.54045% .986345 4.52454);--ink-soft:lab(33.9087% 1.06457 5.31168);--ink-muted:lab(51.3068% .871778 4.52259);--canvas:lab(96.5348% .410527 2.24432);--surface:lab(98.85% .271231 1.4946);--surface-soft:lab(93.6395% .552774 2.99581);--surface-deep:lab(6.21163% .866383 3.46322);--line:lab(84.9438% .699788 3.75055);--line-strong:lab(68.7116% 1.01087 5.27205);--accent:lab(60.4917% 15.0491 52.9294);--accent-dark:lab(36.1092% 12.5275 45.042);--accent-soft:lab(91.9328% 3.11312 13.2157);--success:lab(45.8068% -35.2713 25.5731);--success-soft:lab(94.6646% -10.1355 7.01628);--danger:lab(42.6627% 53.1093 37.3843);--danger-soft:lab(93.8942% 10.4768 6.43022);--info-soft:lab(94.246% -4.24048 -8.02292);--focus:lab(49.5795% -8.36253 -48.5795)}}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:88px}body{background:var(--canvas);color:var(--ink);letter-spacing:0;-webkit-font-smoothing:antialiased;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}button,input,select,textarea{color:inherit;font:inherit;letter-spacing:0}button,summary,a{-webkit-tap-highlight-color:transparent}button:not(:disabled),select,input[type=checkbox],input[type=range],input[type=color]{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.46}a{color:inherit;text-decoration:none}:focus-visible{outline:3px solid var(--focus)}@supports (color:color-mix(in lab, red, red)){:focus-visible{outline:3px solid color-mix(in oklch, var(--focus) 55%, transparent)}}:focus-visible{outline-offset:2px}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{z-index:100;background:var(--accent);color:var(--surface-deep);transition:transform .18s var(--ease-out);padding:10px 14px;position:fixed;top:10px;left:10px;transform:translateY(-160%)}.skip-link:focus{transform:translateY(0)}.page-shell{width:min(1240px,100% - 64px);margin:0 auto}.site-header{z-index:40;border-bottom:1px solid var(--line);background:var(--surface);grid-template-columns:1fr auto 1fr;align-items:center;height:72px;padding:0 max(32px,50% - 620px);display:grid;position:sticky;top:0}@supports (color:color-mix(in lab, red, red)){.site-header{background:color-mix(in oklch, var(--surface) 96%, transparent)}}.brand{justify-self:start;align-items:center;gap:11px;display:inline-flex}.brand-mark{border:1px solid var(--accent-dark);border-radius:var(--radius-sm);width:36px;height:36px;color:var(--accent-dark);place-items:center;font-size:11px;font-weight:800;display:grid}.brand>span:last-child{flex-direction:column;gap:1px;display:flex}.brand strong{font-size:15px;font-weight:700}.brand small{color:var(--ink-muted);font-size:9px;font-weight:700}.desktop-nav{align-items:center;gap:34px;display:flex}.desktop-nav a{color:var(--ink-soft);transition:color .18s var(--ease-out);font-size:14px}.desktop-nav a:hover{color:var(--ink)}.header-contact{border:1px solid var(--line-strong);border-radius:var(--radius-sm);min-height:38px;transition:border-color .18s var(--ease-out), background .18s var(--ease-out);justify-self:end;align-items:center;gap:7px;padding:0 13px;font-size:13px;font-weight:650;display:inline-flex}.header-contact:hover{border-color:var(--accent-dark);background:var(--accent-soft)}.hero{background:var(--surface-deep);color:var(--surface);padding:76px 0 72px;position:relative;overflow:hidden}.hero:after{background:var(--accent);content:"";width:34%;height:4px;position:absolute;bottom:0;right:0}.hero-layout{grid-template-columns:minmax(0,1.4fr) minmax(260px,.6fr);align-items:end;gap:96px;display:grid}.eyebrow,.section-label{color:var(--accent);margin:0;font-size:11px;font-weight:750;line-height:1.5}.eyebrow{align-items:center;gap:12px;margin-bottom:20px;display:flex}.eyebrow span{background:var(--accent);width:32px;height:1px}.hero h1{margin:0;font-size:52px;font-weight:680;line-height:1.15}.hero-copy{color:#bbb7b0;color:lab(74.5036% .703663 3.75311);max-width:610px;margin:22px 0 30px;font-size:16px;line-height:1.85}.primary-action,.button{border-radius:var(--radius-sm);min-height:42px;transition:background .18s var(--ease-out), border-color .18s var(--ease-out), color .18s var(--ease-out), transform .18s var(--ease-out);justify-content:center;align-items:center;gap:8px;font-size:14px;font-weight:680;display:inline-flex}.primary-action{background:var(--accent);min-width:136px;color:var(--surface-deep);padding:0 17px}.primary-action:hover{background:#ce9a4a;background:lab(67.489% 13.8376 48.8051)}.hero-status{border-top:1px solid #3d3a35;border-top:1px solid lab(24.6211% .749022 3.78536);gap:0;display:grid}.hero-status p{color:#c8c3bd;color:lab(79.1437% .701845 3.7519);border-bottom:1px solid #3d3a35;border-bottom:1px solid lab(24.6211% .749022 3.78536);align-items:center;gap:11px;min-height:52px;margin:0;font-size:13px;display:flex}.hero-status svg{color:var(--accent)}.tools-section{padding:84px 0 104px}.section-heading{grid-template-columns:1fr 1fr;align-items:end;gap:72px;display:grid}.tools-heading{margin-bottom:36px}.section-heading h2,.guide-layout h2,.about-layout h2{margin:10px 0 0;font-size:34px;font-weight:680;line-height:1.25}.section-heading>p{max-width:58ch;color:var(--ink-soft);margin:0;font-size:14px;line-height:1.8}.toolbox-shell{border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface);grid-template-columns:286px minmax(0,1fr);min-height:730px;display:grid;overflow:hidden;box-shadow:0 18px 48px #2d282114;box-shadow:0 18px 48px lab(16.5058% 1.22894 5.76611/.08)}.tool-sidebar{border-right:1px solid var(--line);background:var(--surface-soft);flex-direction:column;min-width:0;padding:22px 16px 18px;display:flex}.tool-search{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface);height:42px;color:var(--ink-muted);align-items:center;gap:9px;padding:0 12px;display:flex}.tool-search:focus-within{border-color:var(--focus);outline:3px solid var(--focus)}@supports (color:color-mix(in lab, red, red)){.tool-search:focus-within{outline:3px solid color-mix(in oklch, var(--focus) 18%, transparent)}}.tool-search input{background:0 0;border:0;outline:0;width:100%;min-width:0;font-size:14px}.tool-search input::placeholder,.tool-textarea::placeholder,.text-input::placeholder{color:var(--ink-muted)}.category-tabs{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface);grid-template-columns:repeat(4,1fr);gap:3px;margin:14px 0;padding:3px;display:grid}.category-tabs button{min-height:31px;color:var(--ink-soft);background:0 0;border:0;border-radius:3px;padding:0 5px;font-size:12px}.category-tabs button:hover,.category-tabs button.is-active{background:var(--surface-deep);color:var(--surface)}.tool-nav{flex-direction:column;gap:4px;display:flex}.tool-nav>button{border-radius:var(--radius-sm);width:100%;min-height:58px;color:var(--ink-soft);text-align:left;transition:background .16s var(--ease-out), border-color .16s var(--ease-out), color .16s var(--ease-out);background:0 0;border:1px solid #0000;grid-template-columns:20px minmax(0,1fr);align-items:center;gap:10px;padding:8px 10px;display:grid}.tool-nav>button:hover{background:var(--surface)}@supports (color:color-mix(in lab, red, red)){.tool-nav>button:hover{background:color-mix(in oklch, var(--surface) 78%, transparent)}}.tool-nav>button:hover{color:var(--ink)}.tool-nav>button.is-active{border-color:var(--accent)}@supports (color:color-mix(in lab, red, red)){.tool-nav>button.is-active{border-color:color-mix(in oklch, var(--accent) 44%, var(--line))}}.tool-nav>button.is-active{background:var(--accent-soft);color:var(--ink)}.tool-nav>button svg{color:var(--accent-dark);align-self:start;margin-top:4px}.tool-nav span{flex-direction:column;gap:3px;min-width:0;display:flex}.tool-nav strong{font-size:13px;font-weight:690}.tool-nav small{color:var(--ink-muted);text-overflow:ellipsis;white-space:nowrap;font-size:11px;line-height:1.35;overflow:hidden}.empty-tools{color:var(--ink-soft);margin:12px 5px;font-size:13px;line-height:1.65}.sidebar-foot{color:var(--ink-muted);align-items:center;gap:7px;margin:auto 4px 0;padding-top:18px;font-size:11px;display:flex}.tool-workspace{min-width:0;padding:40px;scroll-margin-top:88px}.tool-panel{max-width:900px;margin:0 auto}.tool-panel-header{grid-template-columns:48px minmax(0,1fr);align-items:start;gap:15px;display:grid}.tool-title-mark{border-radius:var(--radius-md);background:var(--surface-deep);width:48px;height:48px;color:var(--accent);place-items:center;display:grid}.tool-kicker{color:var(--accent-dark);margin:1px 0 3px;font-size:11px;font-weight:760}.tool-panel-header h2{margin:0;font-size:24px;font-weight:700;line-height:1.3}.tool-panel-header p:last-child{max-width:66ch;color:var(--ink-soft);margin:6px 0 0;font-size:13px;line-height:1.65}.local-note{border:1px solid var(--success);align-items:center;gap:7px;margin:22px 0 28px;padding:9px 11px;display:flex}@supports (color:color-mix(in lab, red, red)){.local-note{border:1px solid color-mix(in oklch, var(--success) 26%, var(--line))}}.local-note{border-radius:var(--radius-sm);background:var(--success-soft);color:#194f25;color:lab(29.1928% -26.4707 19.2315);font-size:12px}.field-label{color:var(--ink);margin:18px 0 8px;font-size:13px;font-weight:680;display:block}.tool-textarea,.text-input,.number-input,select{border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--surface);transition:border-color .16s var(--ease-out), box-shadow .16s var(--ease-out)}.tool-textarea:hover,.text-input:hover,.number-input:hover,select:hover{border-color:var(--ink-muted)}.tool-textarea:focus,.text-input:focus,.number-input:focus,select:focus{border-color:var(--focus);box-shadow:0 0 0 3px var(--focus)}@supports (color:color-mix(in lab, red, red)){.tool-textarea:focus,.text-input:focus,.number-input:focus,select:focus{box-shadow:0 0 0 3px color-mix(in oklch, var(--focus) 16%, transparent)}}.tool-textarea:focus,.text-input:focus,.number-input:focus,select:focus{outline:0}.tool-textarea{resize:vertical;width:100%;min-height:210px;padding:13px 14px;font-size:14px;line-height:1.65;display:block}.tool-textarea-large{min-height:290px}.compact-textarea{min-height:96px}.code-field,.compact-output,.single-result code{font-family:SFMono-Regular,Consolas,Liberation Mono,monospace}.output-field,.compact-output{background:var(--surface-soft)}.editor-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;display:grid}.code-editors .tool-textarea{min-height:285px;font-size:13px}.metric-grid{border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface-soft);grid-template-columns:repeat(6,minmax(0,1fr));display:grid}.metric-grid>div{border-right:1px solid var(--line);flex-direction:column;justify-content:center;gap:6px;min-width:0;min-height:84px;padding:12px;display:flex}.metric-grid>div:last-child{border-right:0}.metric-grid strong{font-variant-numeric:tabular-nums;text-overflow:ellipsis;font-size:22px;overflow:hidden}.metric-grid span{color:var(--ink-muted);font-size:11px}.action-row{flex-wrap:wrap;align-items:center;gap:9px;margin-top:16px;display:flex}.button{border:1px solid #0000;min-height:40px;padding:0 14px}.button-primary{background:var(--surface-deep);color:var(--surface)}.button-primary:hover:not(:disabled){background:var(--accent-dark)}.button-secondary{border-color:var(--line-strong);background:var(--surface);color:var(--ink)}.button-secondary:hover:not(:disabled){border-color:var(--accent-dark);background:var(--accent-soft)}.button-quiet{color:var(--ink-soft);background:0 0}.button-quiet:hover:not(:disabled){background:var(--surface-soft);color:var(--ink)}.option-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-bottom:4px;display:grid}.check-control{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface);min-height:40px;color:var(--ink-soft);align-items:center;gap:9px;padding:8px 10px;font-size:13px;display:flex}.check-control:has(input:checked){border-color:var(--accent)}@supports (color:color-mix(in lab, red, red)){.check-control:has(input:checked){border-color:color-mix(in oklch, var(--accent) 50%, 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-26.4707 19.2315)}.error-message{border:1px solid var(--danger)}@supports (color:color-mix(in lab, red, red)){.error-message{border:1px solid color-mix(in oklch, var(--danger) 25%, var(--line))}}.error-message{background:var(--danger-soft);color:var(--danger)}.segmented{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface-soft);flex-wrap:wrap;gap:3px;max-width:100%;margin-bottom:4px;padding:3px;display:inline-flex}.segmented button{min-height:34px;color:var(--ink-soft);background:0 0;border:0;border-radius:3px;padding:0 13px;font-size:13px}.segmented button:hover,.segmented button.is-selected{background:var(--surface);color:var(--ink);box-shadow:0 1px 3px #2d28211a;box-shadow:0 1px 3px lab(16.5058% 1.22894 5.76611/.1)}.split-form{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;display:grid}.split-form section{min-width:0}.split-form section+section{border-left:1px solid var(--line);padding-left:30px}.split-form h3{margin:0 0 4px;font-size:16px}.split-form .button{margin:12px 7px 0 0}.text-input{width:100%;min-height:42px;padding:0 11px;font-size:14px}.compact-output{border:1px solid var(--line);border-radius:var(--radius-sm);min-height:116px;color:var(--ink-soft);white-space:pre-wrap;margin:14px 0 0;padding:12px;font-size:12px;line-height:1.7;overflow:auto}.range-row{grid-template-columns:140px minmax(0,1fr);margin-bottom:18px;display:grid}.range-row label{color:var(--ink-soft);justify-content:space-between;font-size:13px;display:flex}.range-row strong{color:var(--ink);font-variant-numeric:tabular-nums}.range-row input{width:100%;accent-color:var(--accent-dark)}.single-result{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface-soft);justify-content:space-between;align-items:center;gap:16px;min-height:64px;margin:18px 0 14px;padding:10px 10px 10px 14px;display:flex}.single-result 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