@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+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,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+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,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+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:"Source Serif 4 Variable";font-style:normal;font-display:swap;font-weight:200 900;src:url(/_astro/source-serif-4-cyrillic-ext-wght-normal.DHTKMUil.woff2) format("woff2-variations");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:"Source Serif 4 Variable";font-style:normal;font-display:swap;font-weight:200 900;src:url(/_astro/source-serif-4-cyrillic-wght-normal.B1g8a0vD.woff2) format("woff2-variations");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:"Source Serif 4 Variable";font-style:normal;font-display:swap;font-weight:200 900;src:url(/_astro/source-serif-4-greek-wght-normal.BpXpdlRW.woff2) format("woff2-variations");unicode-range:U+0370-0377,U+037A-037F,U+0384-038A,U+038C,U+038E-03A1,U+03A3-03FF}@font-face{font-family:"Source Serif 4 Variable";font-style:normal;font-display:swap;font-weight:200 900;src:url(/_astro/source-serif-4-vietnamese-wght-normal.BsaNuasd.woff2) format("woff2-variations");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:"Source Serif 4 Variable";font-style:normal;font-display:swap;font-weight:200 900;src:url(/_astro/source-serif-4-latin-ext-wght-normal.BVZ5su8S.woff2) format("woff2-variations");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:"Source Serif 4 Variable";font-style:normal;font-display:swap;font-weight:200 900;src:url(/_astro/source-serif-4-latin-wght-normal.DMe4EKeb.woff2) format("woff2-variations");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{--bg:#f3f5f7;--surface:#fff;--ink:#0d1b2a;--muted:#53606f;--brand:#0a7a5f;--brand-text:#066047;--tint:#e2f3ed;--hi:#ffe45c;--line:#d7dee5;--seg0:#1f3a5f;--seg1:#5b7db1;--seg2:#a9bddb;--on-brand:#fff;--ui:"Bricolage Grotesque Variable","Bricolage Grotesque",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--read:"Source Serif 4 Variable","Source Serif 4",Georgia,"Times New Roman",serif}@media(prefers-color-scheme:dark){:root{--bg:#0a131c;--surface:#111e2b;--ink:#e9eff5;--muted:#94a3b4;--brand:#3fdcb0;--brand-text:#5ee6c0;--tint:#12322b;--hi:#ffe45c;--line:#223445;--seg0:#2f4d78;--seg1:#5b7db1;--seg2:#8fb0e0;--on-brand:#04120d}}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}body{margin:0;background:var(--bg);color:var(--ink);font:400 1rem/1.6 var(--ui)}a{color:var(--brand-text);text-underline-offset:3px}:focus-visible{outline:3px solid var(--brand);outline-offset:2px;border-radius:4px}.wrap{max-width:1120px;margin:0 auto;padding:0 20px}.muted{color:var(--muted)}.small{font-size:.85rem}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:var(--surface);padding:8px;z-index:30}.site-header{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.header-inner{display:flex;align-items:center;gap:22px;min-height:64px}.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:1.3rem;letter-spacing:-.02em;color:var(--ink);text-decoration:none}.brand svg{color:var(--brand)}.nav{display:flex;gap:20px;flex:1;font-weight:500;font-size:.96rem}.nav a{color:var(--muted);text-decoration:none;padding:4px 0;border-bottom:2px solid transparent}.nav a:hover{color:var(--ink);border-color:var(--brand)}.header-end{display:flex;align-items:center;gap:8px;margin-left:auto}.mnav{display:none;position:relative}.mnav summary{list-style:none;cursor:pointer;width:42px;height:42px;display:grid;place-items:center;border:1px solid var(--line);border-radius:8px}.mnav summary::-webkit-details-marker{display:none}.mnav ul{position:absolute;right:0;top:calc(100% + 8px);margin:0;padding:8px;list-style:none;background:var(--surface);border:1px solid var(--line);border-radius:10px;box-shadow:0 12px 30px #00000024;min-width:230px}.mnav a{display:block;padding:12px;color:var(--ink);text-decoration:none;border-radius:6px;font-weight:500}.mnav a:hover{background:var(--tint)}@media(max-width:860px){.nav{display:none}.mnav{display:block}.header-inner{gap:12px}}.lang{position:relative}.lang summary{list-style:none;display:flex;align-items:center;gap:8px;cursor:pointer;min-height:42px;padding:0 12px;border:1px solid var(--line);border-radius:8px;background:var(--surface);font-size:.92rem;font-weight:500;user-select:none}.lang summary::-webkit-details-marker{display:none}.lang summary:after{content:"";border:solid var(--muted);border-width:0 2px 2px 0;padding:2.5px;transform:rotate(45deg);margin:-3px 0 0 2px}.lang ul{position:absolute;right:0;top:calc(100% + 8px);margin:0;padding:6px;list-style:none;background:var(--surface);border:1px solid var(--line);border-radius:10px;box-shadow:0 12px 30px #00000024;min-width:180px;z-index:30;max-height:calc(100vh - 90px);overflow-y:auto;display:grid;grid-template-columns:repeat(2,minmax(150px,1fr));gap:0 4px}@media(max-width:480px){.lang ul{position:fixed;left:12px;right:12px;top:70px;grid-template-columns:repeat(2,1fr)}}.lang li a{display:flex;align-items:center;gap:10px;padding:10px;border-radius:6px;color:var(--ink);text-decoration:none;font-size:.95rem}.lang li a:hover,.lang li a[aria-current]{background:var(--tint)}.flag{border-radius:2px;box-shadow:0 0 0 1px #00000026;flex:none}@media(max-width:480px){.lang summary span{display:none}}h1,h2,h3{font-family:var(--ui);letter-spacing:-.02em;line-height:1.12;margin:0}h1{font-size:clamp(2.1rem,5.2vw,3.7rem);font-weight:800;margin:.35em 0 .3em}h2{font-size:clamp(1.45rem,2.6vw,1.9rem);font-weight:700;margin:2em 0 .6em}h3{font-size:1.15rem;font-weight:700}.lead{font-size:1.18rem;color:var(--muted);max-width:62ch;margin:0 0 1rem}.hl{background:linear-gradient(transparent 58%,var(--hi) 58%);padding:0 .1em}@media(prefers-color-scheme:dark){.hl{background:linear-gradient(transparent 58%,#ffe45c61 58%)}}.btn{display:inline-flex;align-items:center;min-height:48px;background:var(--brand);color:var(--on-brand);padding:0 24px;border-radius:8px;text-decoration:none;font-weight:700}.btn:hover{filter:brightness(1.08)}.btn-ghost{background:none;border:1px solid var(--line);color:var(--ink);min-height:44px;padding:0 16px;border-radius:8px;font:inherit;font-weight:500;cursor:pointer}.btn-ghost:hover{border-color:var(--brand)}.hero{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;padding:56px 0 40px}@media(max-width:900px){.hero{grid-template-columns:1fr;gap:32px;padding-top:36px}}.hero h1{max-width:14ch}.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--surface);margin:8px 0}.tile{display:flex;flex-direction:column;gap:6px;padding:22px 20px;text-decoration:none;color:var(--ink);border-right:1px solid var(--line);transition:background .15s}.tile:last-child{border-right:0}.tile:hover{background:var(--tint)}.tile .icon{color:var(--brand);margin-bottom:8px}.tile strong{font-size:1.1rem}.tile span{font-size:.9rem;color:var(--muted);line-height:1.45}@media(max-width:860px){.tiles{grid-template-columns:1fr 1fr}.tile:nth-child(2){border-right:0}.tile:nth-child(-n+2){border-bottom:1px solid var(--line)}}@media(max-width:480px){.tiles{grid-template-columns:1fr}.tile{border-right:0;border-bottom:1px solid var(--line)}.tile:last-child{border-bottom:0}}.section-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;margin:48px 0 8px}.section-head h2{margin:0}.why{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:32px;margin:20px 0}.why p{margin:.4em 0 0;color:var(--muted)}.tlist{list-style:none;margin:8px 0;padding:0;border-top:1px solid var(--line)}.tlist li{border-bottom:1px solid var(--line)}.tlist a{display:grid;grid-template-columns:minmax(220px,1fr) 1.6fr;gap:8px 28px;padding:18px 6px;text-decoration:none;color:var(--ink)}.tlist a:hover{background:var(--tint)}.tlist strong{font-size:1.05rem;color:var(--brand-text)}.tlist span{color:var(--muted);font-size:.95rem;line-height:1.5}@media(max-width:720px){.tlist a{grid-template-columns:1fr}}.crumbs{font-size:.88rem;color:var(--muted);padding-top:22px}.crumbs a{color:var(--muted)}.meta{display:flex;gap:10px 18px;flex-wrap:wrap;font-size:.86rem;color:var(--muted);margin:0 0 6px}.meta span+span:before{content:"";display:inline-block;width:4px;height:4px;border-radius:50%;background:var(--muted);margin-right:18px;vertical-align:middle}.page-head{padding-bottom:8px}.calc{margin:20px 0 8px}.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}@media(max-width:820px){.calc-grid{grid-template-columns:1fr;gap:28px}}.calc h2{margin:0 0 14px;font-size:1.1rem}.calc-form{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:24px}.field{margin-bottom:16px}.field[hidden]{display:none}.field label{display:block;font-weight:600;font-size:.93rem;margin-bottom:6px}.field input,.field select{width:100%;min-height:48px;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font:inherit;font-size:1rem;background:var(--bg);color:var(--ink);font-variant-numeric:tabular-nums}.field input:focus,.field select:focus{border-color:var(--brand);outline:3px solid color-mix(in srgb,var(--brand) 25%,transparent);outline-offset:0}.input-wrap{display:flex}.input-wrap input{flex:1;min-width:0}.affix{display:flex;align-items:center;padding:0 12px;background:var(--tint);border:1px solid var(--line);color:var(--muted);font-weight:600}.affix.pre{border-right:0;border-radius:8px 0 0 8px}.affix.suf{border-left:0;border-radius:0 8px 8px 0}.affix.pre+input{border-radius:0 8px 8px 0}.input-wrap:has(.suf) input{border-radius:8px 0 0 8px}.hint{font-size:.82rem;color:var(--muted);margin:5px 0 0}.note{font-size:.82rem;color:var(--muted);margin:12px 0 0}.stub{position:relative;background:var(--surface);border:1px solid var(--line);border-bottom:0;border-radius:12px 12px 0 0;padding:24px 24px 30px;margin-bottom:12px;filter:drop-shadow(0 6px 10px rgba(13,27,42,.07))}.stub:after{content:"";position:absolute;left:-1px;right:-1px;bottom:-11px;height:12px;background:radial-gradient(circle at 9px -1px,transparent 6px,var(--surface) 6.6px) 0 0/18px 12px repeat-x}.stub:before{content:"";position:absolute;left:-1px;right:-1px;bottom:-12px;height:12px;background:radial-gradient(circle at 9px -1px,transparent 6px,var(--line) 6.6px) 0 0/18px 12px repeat-x}.stub h2{margin:0 0 6px;font-size:1.1rem}.stub-title{margin:0;font-weight:600;color:var(--muted)}.stub-big{margin:.1em 0 .2em;font-size:clamp(2.6rem,6vw,3.6rem);font-weight:800;letter-spacing:-.03em;line-height:1.1;font-variant-numeric:tabular-nums}.stub-sub{margin:0 0 20px;color:var(--muted)}.stub-sub b{color:var(--ink)}.stub-link{display:inline-block;margin-top:4px;font-weight:700}.result-list{margin:0}.result-row{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:10px 0;border-bottom:1px dashed var(--line)}.result-row dt{color:var(--muted);font-size:.95rem}.result-row dd{margin:0;font-weight:700;text-align:right;font-variant-numeric:tabular-nums}.result-row.is-hi{padding:14px 0 12px;border-bottom:2px solid var(--ink)}.result-row.is-hi dt{color:var(--ink);font-weight:700}.result-row.is-hi dd{font-size:1.6rem;letter-spacing:-.02em;background:linear-gradient(transparent 60%,var(--hi) 60%);padding:0 .15em}@media(prefers-color-scheme:dark){.result-row.is-hi dd{background:linear-gradient(transparent 60%,#ffe45c61 60%)}.result-row.is-hi{border-color:var(--muted)}}.result-error{color:#b3261e;font-weight:600}@media(prefers-color-scheme:dark){.result-error{color:#ff8a80}}.chart{margin-top:18px}.bar{display:flex;height:16px;border-radius:4px;overflow:hidden;gap:2px;background:var(--line)}.seg{display:block;height:100%}.seg-0{background:var(--seg0)}.seg-1{background:var(--seg1)}.seg-2,.seg-3{background:var(--seg2)}.seg-keep{background:var(--brand)}.legend{list-style:none;margin:10px 0 0;padding:0;font-size:.88rem}.legend li{display:flex;align-items:center;gap:8px;padding:3px 0}.legend span{flex:1;color:var(--muted)}.legend b{font-variant-numeric:tabular-nums}.dot{width:10px;height:10px;border-radius:2px;flex:none}.tool-body{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start;margin-top:24px}@media(max-width:980px){.tool-body{grid-template-columns:1fr;gap:24px}}.prose{font-family:var(--read);font-size:1.1rem;line-height:1.78;max-width:68ch}.prose h2{font-family:var(--ui);font-size:1.5rem;margin:1.6em 0 .4em}.prose p{margin:.9em 0}.faq{max-width:68ch}.faq details{border-bottom:1px solid var(--line);padding:14px 0}.faq summary{cursor:pointer;font-weight:600;font-size:1.02rem}.faq details p{margin:.6em 0 0;color:var(--muted);font-family:var(--read);font-size:1.05rem;line-height:1.7}.aside{position:sticky;top:84px}@media(max-width:980px){.aside{position:static}}.aside h2{font-size:1.05rem;margin:0 0 6px}.aside .tlist a{grid-template-columns:1fr;padding:12px 4px;gap:2px}.aside .tlist span{display:none}.sources{max-width:68ch}.sources li{margin:.4em 0;font-size:.95rem}.sources ul{padding-left:1.1em}.ad{margin:28px 0;min-height:250px}.ad-sidebar{min-height:600px}.legal{max-width:70ch;padding-bottom:20px}.legal.prose{font-size:1.05rem}.site-footer{margin-top:72px;border-top:1px solid var(--line);background:var(--surface);padding:36px 0}.footer-inner{display:grid;grid-template-columns:1.2fr 1fr 1fr 1.2fr;gap:28px}@media(max-width:860px){.footer-inner{grid-template-columns:1fr 1fr}}@media(max-width:520px){.footer-inner{grid-template-columns:1fr}}.footer-inner nav{display:flex;flex-direction:column;gap:8px}.footer-inner nav a{color:var(--ink);text-decoration:none;font-size:.95rem}.footer-inner nav a:hover{color:var(--brand-text)}.footer-brand{font-weight:800;font-size:1.2rem;margin:0}.footer-inner p{margin:.3em 0}.result-row.is-hi~.result-row.is-hi dd{background:none}
