@font-face{font-family:Bricolage Grotesque Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/_astro/bricolage-grotesque-vietnamese-wght-normal.BUzh504Q.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Bricolage Grotesque Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/_astro/bricolage-grotesque-latin-ext-wght-normal.CcLUaPy7.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Bricolage Grotesque Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/_astro/bricolage-grotesque-latin-wght-normal.DLoelf7F.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{--bg:#f7f7f4;--bg-raised:#fff;--bg-subtle:#efefea;--bg-sunken:#e8e8e2;--border:#deddd5;--border-strong:#c3c2b8;--text:#1c1c1a;--text-muted:#5f5e57;--text-faint:#8a897f;--accent:#2f5bd3;--accent-hover:#2248b0;--accent-subtle:#e6ecfb;--accent-text:#fff;--ok:#1d7a46;--ok-subtle:#e2f3e8;--warn:#9a5b00;--warn-subtle:#fbf0dc;--danger:#b3261e;--danger-subtle:#fbe4e2;--add:#dff3e4;--del:#fbe2e0;--radius:10px;--radius-lg:16px;--shadow:0 1px 2px #1c1c1a0d, 0 2px 8px #1c1c1a0a;--shadow-lift:0 2px 4px #1c1c1a0f, 0 8px 24px #1c1c1a12;--maxw:1120px;--prose:70ch;--font:system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--display:"Bricolage Grotesque Variable", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--mono:ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;--hue-pdf-tools:8;--hue-calculators:152;--hue-text-tools:222;--hue-developer-tools:268;--hue-data-tools:188;--hue-converters:38;--hue-time-tools:330;--hue-generators:96;--hue-money:300;--hue:222}@media (prefers-color-scheme:dark){:root{--bg:#141413;--bg-raised:#1d1d1b;--bg-subtle:#232321;--bg-sunken:#0f0f0e;--border:#33332f;--border-strong:#4a4a44;--text:#ecebe6;--text-muted:#a9a79d;--text-faint:#7d7b72;--accent:#7ea2ff;--accent-hover:#a3bdff;--accent-subtle:#1e2945;--accent-text:#0e1320;--ok:#6fd39a;--ok-subtle:#16301f;--warn:#f0b85c;--warn-subtle:#33260f;--danger:#ff8a80;--danger-subtle:#3a1714;--add:#183322;--del:#3a1b18;--shadow:0 1px 3px #0006;--shadow-lift:0 4px 18px #00000073}}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}[hidden]{display:none!important}body{background:var(--bg);color:var(--text);font-family:var(--font);flex-direction:column;min-height:100vh;margin:0;font-size:1rem;line-height:1.65;display:flex}main{outline:none;flex:1}a{color:var(--accent);text-underline-offset:.18em}a:hover{color:var(--accent-hover)}img,svg,canvas{max-width:100%}code,kbd,pre{font-family:var(--mono);font-size:.92em}:not(pre)>code{background:var(--bg-subtle);border:1px solid var(--border);overflow-wrap:anywhere;border-radius:5px;padding:.05em .35em}pre{background:var(--bg-sunken);border:1px solid var(--border);border-radius:var(--radius);padding:.9rem 1rem;line-height:1.5;overflow-x:auto}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}.wrap{max-width:var(--maxw);margin:0 auto;padding:0 1.25rem}.skip-link{background:var(--accent);color:var(--accent-text);z-index:10;padding:.6rem 1rem;position:absolute;top:0;left:-9999px}.skip-link:focus{top:1rem;left:1rem}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;overflow:hidden;position:absolute!important}.muted{color:var(--text-muted)}.site-header{z-index:20;border-bottom:1px solid var(--border);background:color-mix(in srgb, var(--bg-raised) 86%, transparent);-webkit-backdrop-filter:saturate(1.4)blur(12px);position:sticky;top:0}.header-row{justify-content:space-between;align-items:center;gap:1rem;min-height:64px;display:flex}.brand{min-height:44px;font-family:var(--display);color:var(--text);letter-spacing:-.01em;align-items:center;gap:.6rem;font-size:1.12rem;font-weight:700;text-decoration:none;display:inline-flex}.brand-mark{color:var(--accent);flex:none}.header-search{border:1px solid var(--border);background:var(--bg-subtle);min-width:44px;min-height:44px;color:var(--text-muted);font:inherit;cursor:pointer;border-radius:999px;align-items:center;gap:.55rem;margin-left:auto;padding:0 .75rem;font-size:.92rem;transition:border-color .15s,color .15s;display:inline-flex}.header-search:hover{border-color:var(--border-strong);color:var(--text)}.header-search-label{text-align:left;min-width:7.5rem}.header-search-kbd{font-family:var(--font);border:1px solid var(--border);background:var(--bg-raised);color:var(--text-faint);border-radius:5px;padding:.05rem .4rem;font-size:.75rem}.header-nav{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:.25rem;display:flex}.header-nav a{min-height:44px;color:var(--text-muted);border-radius:8px;align-items:center;padding:0 .7rem;font-size:.95rem;text-decoration:none;display:inline-flex}.header-nav a:hover{color:var(--text);background:var(--bg-subtle)}.header-nav a[aria-current=page]{color:var(--text);font-weight:600}.header-nav .header-language{border:1px solid var(--border);margin-left:.25rem}@media (width<=560px){.header-row{flex-wrap:wrap;gap:0;padding-top:.25rem;padding-bottom:.25rem}.header-nav{justify-content:flex-start;width:100%;margin-left:-.7rem}.header-nav .header-language{margin-left:auto}.header-search{justify-content:center;width:44px;padding:0}.header-search-label,.header-search-kbd{display:none}}.site-footer{border-top:1px solid var(--border);background:var(--bg-raised);color:var(--text-muted);margin-top:4rem;padding:2rem 0 2.5rem;font-size:.92rem}.footer-grid{gap:1rem;display:grid}.footer-rights{margin:0}.site-footer nav{flex-wrap:wrap;align-items:center;gap:0 .25rem;display:flex}.site-footer nav a{min-height:44px;color:var(--text-muted);border-radius:8px;align-items:center;gap:.4rem;padding:0 .6rem;text-decoration:none;display:inline-flex}.site-footer nav a:first-child{margin-left:-.6rem}.site-footer nav a:hover{color:var(--text);background:var(--bg-subtle)}.site-footer small{color:var(--text-faint)}.footer-sister span{margin-right:.4rem}.footer-sister span+a{margin-left:0}.footer-languages a[aria-current=true]{color:var(--text);font-weight:600}.breadcrumb{margin:1.25rem 0 0;font-size:.9rem}.breadcrumb ol{flex-wrap:wrap;align-items:center;margin:0;padding:0;list-style:none;display:flex}.breadcrumb li{color:var(--text-muted);align-items:center;display:inline-flex}.breadcrumb li+li:before{content:"/";color:var(--text-faint);margin:0 .45rem}.breadcrumb a{min-height:44px;color:var(--text-muted);align-items:center;text-decoration:none;display:inline-flex}.breadcrumb a:hover{color:var(--accent);text-decoration:underline}.page-head{padding:.5rem 0 1.5rem}.page-head.has-icon{grid-template-columns:auto 1fr;align-items:center;column-gap:1rem;display:grid}.page-head.has-icon>:not(.page-icon){grid-column:2}.page-head.has-icon .page-icon{grid-row:1/span 2;align-self:end;margin-bottom:.75rem}.page-head.has-icon .lead{grid-column:1/-1}@media (width<=560px){.page-head.has-icon .page-icon{width:2.5rem;height:2.5rem}}.page-head .eyebrow{letter-spacing:.06em;text-transform:uppercase;color:hsl(var(--hue) 55% 42%);margin-bottom:.4rem;font-size:.8rem;font-weight:650;display:inline-block}.page-head h1{font-family:var(--display);letter-spacing:-.025em;margin:0 0 .6rem;font-size:clamp(1.8rem,1.2rem + 2.2vw,2.6rem);font-weight:700;line-height:1.12}.page-head .lead{color:var(--text-muted);max-width:var(--prose);margin:0;font-size:1.1rem}@media (prefers-color-scheme:dark){.page-head .eyebrow{color:hsl(var(--hue) 60% 70%)}}.prose{max-width:var(--prose)}.prose h2{letter-spacing:-.01em;margin:2.4rem 0 .8rem;scroll-margin-top:1rem;font-size:1.45rem;line-height:1.3}.prose h3{margin:1.6rem 0 .5rem;font-size:1.12rem}.prose p,.prose ul,.prose ol{margin:0 0 1rem}.prose p,.prose li,.prose td,.faq summary{overflow-wrap:anywhere}.prose li{margin-bottom:.35rem}.prose table{border-collapse:collapse;width:100%;margin:0 0 1.2rem;font-size:.95rem}.prose th,.prose td{border-bottom:1px solid var(--border);text-align:left;vertical-align:top;padding:.5rem .6rem}.prose th{background:var(--bg-subtle);font-weight:600}.table-scroll{margin:0 0 1.2rem;overflow-x:auto}.table-scroll table{margin:0}.prose .note{background:var(--accent-subtle);border-left:3px solid var(--accent);border-radius:0 var(--radius) var(--radius) 0;padding:.75rem 1rem}.prose a{overflow-wrap:anywhere}.doc-layout{grid-template-columns:minmax(0,1fr) 220px;align-items:start;gap:3rem;margin-top:2.5rem;display:grid}.doc-toc{border-left:1px solid var(--border);padding-left:1rem;font-size:.9rem;position:sticky;top:1rem}.doc-toc strong{letter-spacing:.06em;text-transform:uppercase;color:var(--text-faint);margin-bottom:.3rem;font-size:.78rem;display:block}.doc-toc a{min-height:44px;color:var(--text-muted);align-items:center;line-height:1.3;text-decoration:none;display:flex}.doc-toc a:hover{color:var(--accent)}@media (width<=900px){.doc-layout{grid-template-columns:minmax(0,1fr);gap:0}.doc-toc{display:none}}.faq details{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-raised);margin-bottom:.6rem}.faq summary{cursor:pointer;min-height:44px;margin-left:1rem;padding:.8rem 1rem;font-weight:600;list-style-position:outside}.faq details[open] summary{border-bottom:1px solid var(--border)}.faq details>div{padding:.8rem 1rem .2rem}.card-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr));gap:.75rem;display:grid}.tool-card{--hue:222;background:var(--bg-raised);border:1px solid var(--border);border-radius:var(--radius-lg);min-height:44px;color:var(--text);grid-template-columns:auto minmax(0,1fr);align-items:start;gap:.2rem .85rem;padding:.95rem 1rem;text-decoration:none;transition:border-color .15s,box-shadow .15s,transform .15s;display:grid}.tool-card:hover{color:var(--text);border-color:hsl(var(--hue) 45% 70%);box-shadow:var(--shadow-lift);transform:translateY(-2px)}.tool-card .icon-tile{grid-row:span 2}.tool-card strong{padding-top:.1rem;font-size:1rem;line-height:1.3}.tool-card strong small{color:var(--text-faint);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.1rem;font-size:.75rem;font-weight:600;display:block}.tool-card span:not(.icon-tile){color:var(--text-muted);font-size:.9rem;line-height:1.5}.icon-tile{background:hsl(var(--hue) 75% 95%);width:2.5rem;height:2.5rem;color:hsl(var(--hue) 55% 36%);box-shadow:inset 0 0 0 1px hsl(var(--hue) 60% 88%);border-radius:12px;flex:none;place-items:center;display:inline-grid}.icon-tile.lg{border-radius:14px;width:3rem;height:3rem}@media (prefers-color-scheme:dark){.icon-tile{background:hsl(var(--hue) 35% 17%);color:hsl(var(--hue) 70% 75%);box-shadow:inset 0 0 0 1px hsl(var(--hue) 35% 26%)}}.tool-panel{background:var(--bg-raised);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:1.25rem}.tool-panel+.tool-panel{margin-top:1rem}.tool-local{color:var(--text-muted);align-items:center;gap:.5rem;margin:.75rem 0 0;font-size:.88rem;display:flex}.tool-local:before{content:"";background:var(--ok);border-radius:50%;flex:none;width:8px;height:8px}.field{align-content:start;gap:.35rem;display:grid}.field>span,.field-label{color:var(--text-muted);font-size:.88rem;font-weight:600}.field-row{flex-wrap:wrap;align-items:end;gap:.9rem;display:flex}.field-row>.field{flex:160px}input[type=text],input[type=number],input[type=date],input[type=datetime-local],input[type=time],input[type=search],input[type=url],select,textarea{font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--border-strong);border-radius:8px;width:100%;min-width:0;min-height:44px;padding:.5rem .7rem}textarea{font-family:var(--mono);resize:vertical;min-height:12rem;font-size:.92rem;line-height:1.5}textarea.plain{font-family:var(--font);font-size:1rem}input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:0;border-color:var(--accent)}input[type=range]{width:100%;min-height:44px;accent-color:var(--accent)}.check{cursor:pointer;user-select:none;align-items:center;gap:.5rem;min-height:44px;display:inline-flex}.check input{width:1.15rem;height:1.15rem;accent-color:var(--accent);margin:0}.btn{min-width:44px;min-height:44px;font:inherit;color:var(--text);background:var(--bg-raised);border:1px solid var(--border-strong);cursor:pointer;white-space:nowrap;border-radius:9px;justify-content:center;align-items:center;gap:.4rem;padding:0 1rem;font-size:.95rem;font-weight:600;text-decoration:none;display:inline-flex}.btn:hover{background:var(--bg-subtle);color:var(--text)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-text)}.btn.primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);color:var(--accent-text)}.btn.small{min-height:44px;padding:0 .75rem;font-size:.88rem}.btn-row{flex-wrap:wrap;align-items:center;gap:.5rem;display:flex}.segmented{border:1px solid var(--border-strong);border-radius:9px;flex-wrap:wrap;display:inline-flex;overflow:hidden}.segmented button{font:inherit;background:var(--bg-raised);min-height:44px;color:var(--text-muted);cursor:pointer;border:0;padding:0 .9rem;font-size:.92rem}.segmented button+button{border-left:1px solid var(--border)}.segmented button[aria-pressed=true],.segmented button[aria-selected=true]{background:var(--accent);color:var(--accent-text)}.dropzone{text-align:center;border:2px dashed var(--border-strong);border-radius:var(--radius-lg);background:var(--bg);cursor:pointer;place-items:center;gap:.4rem;padding:2rem 1rem;transition:border-color .15s,background .15s;display:grid}.dropzone:hover,.dropzone.is-over{border-color:var(--accent);background:var(--accent-subtle)}.dropzone strong{font-size:1.05rem}.dropzone small{color:var(--text-muted)}.status{min-height:1.4em;margin:.75rem 0 0;font-size:.92rem}.status.is-error{color:var(--danger)}.status.is-ok{color:var(--ok)}.alert{border-radius:var(--radius);margin:.75rem 0 0;padding:.7rem .9rem;font-size:.93rem}.alert.warn{background:var(--warn-subtle);color:var(--warn)}.alert.error{background:var(--danger-subtle);color:var(--danger)}.alert.info{background:var(--accent-subtle);color:var(--text)}.stat-grid{grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:.6rem;display:grid}.stat{background:var(--bg-subtle);border-radius:var(--radius);padding:.7rem .85rem;container-type:inline-size}.stat b{font-variant-numeric:tabular-nums;white-space:nowrap;font-size:clamp(.95rem,12cqi,1.5rem);line-height:1.2;display:block}@supports not (font-size:1cqi){.stat b{white-space:normal;overflow-wrap:anywhere;font-size:1.2rem}}.stat span{color:var(--text-muted);font-size:.82rem;line-height:1.35;display:block}.result-big{font-variant-numeric:tabular-nums;letter-spacing:-.02em;overflow-wrap:anywhere;font-size:clamp(1.6rem,1.2rem + 1.6vw,2.3rem);font-weight:750}.data-table-wrap{border:1px solid var(--border);border-radius:var(--radius);max-height:28rem;overflow:auto}.data-table{border-collapse:collapse;font-variant-numeric:tabular-nums;width:100%;font-size:.9rem}.data-table th,.data-table td{border-bottom:1px solid var(--border);text-align:right;white-space:nowrap;padding:.4rem .6rem}.data-table th{background:var(--bg-subtle);font-weight:600;position:sticky;top:0}.data-table td:first-child,.data-table th:first-child{text-align:left}.two-col{grid-template-columns:1fr 1fr;gap:1rem;display:grid}@media (width<=760px){.two-col{grid-template-columns:1fr}}.ad-slot{min-height:var(--ad-min-h,250px);margin:2rem 0}.ad-slot:has(ins[data-ad-status=unfilled]){display:none}.section-block{margin-top:3rem}.section-block>h2{letter-spacing:-.01em;margin:0 0 1rem;font-size:1.35rem}.category-block{--hue:222;margin-top:2.75rem}.category-block header{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:1rem;margin-bottom:.9rem;display:flex}.category-block h2{margin:0;font-size:1.35rem}.category-block h2 a{min-height:44px;color:var(--text);align-items:center;text-decoration:none;display:inline-flex}.category-block h2 a:hover{color:var(--accent)}.category-block header p{color:var(--text-muted);flex-basis:100%;margin:.2rem 0 0}.category-block header>a{align-items:center;min-height:44px;font-size:.92rem;display:inline-flex}.home-hero{padding-top:2.5rem}.home-hero h1{max-width:20ch;font-size:clamp(1.9rem,1.3rem + 2.6vw,2.9rem)}.category-chips{flex-wrap:wrap;gap:.5rem;margin:.5rem 0 0;display:flex}.category-chips a{background:var(--bg-raised);border:1px solid var(--border);min-height:44px;color:var(--text);border-radius:999px;align-items:center;gap:.45rem;padding:0 .95rem;font-size:.93rem;text-decoration:none;display:inline-flex}.category-chips a:before{content:"";background:hsl(var(--hue) 60% 50%);border-radius:50%;width:8px;height:8px}.category-chips a:hover{border-color:hsl(var(--hue) 50% 60%)}.home-notes{border-top:1px solid var(--border);grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:0 2.5rem;margin-top:3rem;display:grid}.home-notes h2{margin-top:2rem;font-size:1.2rem}.page-prose{padding-bottom:1rem}.page-prose h1{margin:.5rem 0 1rem;font-size:clamp(1.7rem,1.2rem + 2vw,2.3rem)}.tool-panel details>summary{gap:.5rem;list-style:none}.tool-panel details>summary::-webkit-details-marker{display:none}.tool-panel details>summary:before{content:"▸";width:1em;color:var(--text-muted);transition:transform .15s;display:inline-block}.tool-panel details[open]>summary:before{transform:rotate(90deg)}.palette{border:1px solid var(--border);background:var(--bg-raised);width:min(640px,100vw - 2rem);max-height:min(560px,100dvh - 4rem);color:var(--text);border-radius:18px;margin:8vh auto auto;padding:0;overflow:hidden;box-shadow:0 24px 64px #00000038}.palette::backdrop{backdrop-filter:blur(3px);background:#14141259}.palette[open]{flex-direction:column;display:flex}.palette-box{flex-direction:column;flex:1;min-height:0;display:flex}.palette-input{border-bottom:1px solid var(--border);color:var(--text-muted);align-items:center;gap:.6rem;padding:0 .6rem 0 1rem;display:flex}.palette-input input{min-width:0;font:inherit;color:var(--text);background:0 0;border:0;outline:none;flex:1;padding:1rem 0;font-size:1.05rem}.palette-close{width:44px;height:44px;color:var(--text-muted);cursor:pointer;background:0 0;border:0;border-radius:10px;place-items:center;display:grid}.palette-close:hover{background:var(--bg-subtle);color:var(--text)}.palette-list{flex:1;margin:0;padding:.4rem;list-style:none;overflow-y:auto}.palette-list a{color:var(--text);border-radius:12px;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:.8rem;padding:.55rem .65rem;text-decoration:none;display:grid}.palette-list li[aria-selected=true] a{background:var(--accent-subtle)}.palette-text{min-width:0;display:grid}.palette-text strong{font-size:.97rem;font-weight:600}.palette-text small{color:var(--text-muted);white-space:nowrap;text-overflow:ellipsis;font-size:.84rem;overflow:hidden}.palette-cat{color:var(--text-faint);white-space:nowrap;font-size:.75rem}.palette-empty{text-align:center;color:var(--text-muted);margin:0;padding:1.5rem 1rem}.palette-foot{border-top:1px solid var(--border);color:var(--text-faint);margin:0;padding:.55rem 1rem;font-size:.8rem}.palette-foot kbd{font-family:var(--font);border:1px solid var(--border);border-radius:4px;padding:0 .35rem}@media (width<=560px){.palette{margin-top:1rem}.palette-cat{display:none}}.palette-input input::-webkit-search-cancel-button{display:none}