@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}:root{--bg:#ffffff;--surface:#f7f9fa;--ink:#0b161d;--ink-soft:#364955;--muted:#5b6e7a;--line:#e7edf0;--accent:#0e93c4;--accent-deep:#0a7099;--accent-ink:#08607f;--accent-soft:#e9f6fb;--accent-glow:rgba(18,165,214,.16);--radius:18px;--radius-sm:12px;--measure:66ch;--font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;--display:"Bricolage Grotesque Variable",var(--font);--shadow:0 1px 2px rgba(11,22,29,.04),0 10px 30px -12px rgba(11,22,29,.1);--shadow-lift:0 2px 4px rgba(11,22,29,.05),0 18px 44px -14px rgba(11,22,29,.16)}@media (prefers-color-scheme:dark){:root{--bg:#0b1319;--surface:#111c24;--ink:#ecf3f7;--ink-soft:#c0cfd8;--muted:#93a7b3;--line:#1e2c36;--accent:#2fb3e2;--accent-deep:#57c4ea;--accent-ink:#9adcf2;--accent-soft:#0f2b38;--accent-glow:rgba(47,179,226,.13);--shadow:0 1px 2px rgba(0,0,0,.35),0 10px 30px -12px rgba(0,0,0,.5);--shadow-lift:0 2px 4px rgba(0,0,0,.4),0 18px 44px -14px rgba(0,0,0,.6)}}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:17.5px;line-height:1.7;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}a{color:var(--accent-ink);text-underline-offset:2px}img{max-width:100%;height:auto}h1,h2,h3,.brand{font-family:var(--display)}.wrap{max-width:730px;margin:0 auto;padding:0 22px}.wrap-wide{max-width:1120px;margin:0 auto;padding:0 22px}.site-header{position:sticky;top:0;z-index:40;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(14px) saturate(1.4)}.site-header .row{display:flex;align-items:center;justify-content:space-between;height:64px}.brand{font-weight:800;letter-spacing:-.02em;font-size:20px;color:var(--ink);text-decoration:none;display:flex;gap:9px;align-items:center}.brand .dot{width:11px;height:11px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent-glow),0 0 0 4px var(--accent-glow)}.nav{display:flex;align-items:center;gap:4px}.nav a{color:var(--ink-soft);text-decoration:none;font-size:15px;font-weight:600;padding:8px 12px;border-radius:100px;transition:background .15s,color .15s}.nav a:hover{color:var(--accent-ink);background:var(--accent-soft)}.nav a.nav-cta{background:var(--ink);color:var(--bg);margin-left:6px;white-space:nowrap}.nav a.nav-cta:hover{background:var(--accent-deep);color:#fff}.brand{white-space:nowrap}@media (max-width:560px){.brand{font-size:17px}.nav a:not(.nav-cta){padding:8px 7px;font-size:14px}.nav a.nav-cta{padding:8px 12px;font-size:14px}}.hero{position:relative;padding:84px 0 56px;text-align:center;overflow:clip}.hero-orb{position:absolute;inset:-40% -20% auto;height:120%;pointer-events:none;z-index:-1;background:radial-gradient(42% 55% at 50% 12%,var(--accent-glow),transparent 70%),radial-gradient(30% 40% at 78% 30%,color-mix(in srgb,var(--accent-glow) 60%,transparent),transparent 70%),radial-gradient(26% 36% at 22% 34%,color-mix(in srgb,var(--accent-glow) 50%,transparent),transparent 70%);animation:drift 14s ease-in-out infinite alternate}@keyframes drift{0%{transform:translateY(0) scale(1)}to{transform:translateY(18px) scale(1.04)}}@media (prefers-reduced-motion:reduce){.hero-orb{animation:none}}.eyebrow{display:inline-flex;gap:8px;align-items:center;font-size:12.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-ink);background:var(--accent-soft);border:1px solid color-mix(in srgb,var(--accent) 22%,transparent);padding:7px 14px;border-radius:100px}.hero h1{font-size:clamp(40px,7.2vw,72px);line-height:.98;letter-spacing:-.035em;font-weight:800;margin:22px auto 16px;max-width:15ch;text-wrap:balance}.hero h1 em{font-style:normal;color:var(--accent-deep)}.hero p{font-size:clamp(17px,2.4vw,20px);color:var(--ink-soft);max-width:44ch;margin:0 auto 30px}.hero-ctas{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.btn{display:inline-block;background:var(--accent);color:#fff;font-weight:700;text-decoration:none;padding:14px 28px;border-radius:100px;font-size:16.5px;letter-spacing:-.01em;box-shadow:0 6px 20px -6px var(--accent-glow);transition:transform .15s,box-shadow .15s,background .15s}.btn:hover{transform:translateY(-1px);background:var(--accent-deep);box-shadow:0 10px 26px -6px var(--accent-glow)}.btn.ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line);box-shadow:none}.btn.ghost:hover{border-color:var(--accent);color:var(--accent-ink);background:var(--accent-soft)}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:26px 0 8px}@media (max-width:640px){.stats{grid-template-columns:1fr;gap:10px}}.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px;text-align:center}.stat .n{font-family:var(--display);font-size:clamp(26px,3.4vw,34px);font-weight:800;letter-spacing:-.03em;line-height:1;color:var(--accent-deep)}.stat .l{font-size:14px;color:var(--muted);margin-top:8px}.sec{margin:72px 0}.sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:14px;margin-bottom:22px}.sec-head h2{font-size:clamp(26px,4vw,34px);letter-spacing:-.025em;font-weight:800;margin:0;text-wrap:balance}.sec-head a{font-weight:700;font-size:15px;text-decoration:none;white-space:nowrap}.sec-head a:hover{text-decoration:underline}.guides{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}.gcard{display:flex;flex-direction:column;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);overflow:clip;text-decoration:none;color:var(--ink);box-shadow:var(--shadow);transition:transform .18s,box-shadow .18s,border-color .18s}.gcard:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift);border-color:color-mix(in srgb,var(--accent) 35%,var(--line))}.gcard img{aspect-ratio:3/2;object-fit:cover;width:100%}.gcard .gc-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}.gcard .tag{align-self:flex-start;font-size:11.5px;font-weight:800;letter-spacing:.07em;text-transform:uppercase;color:var(--accent-ink);background:var(--accent-soft);padding:4px 10px;border-radius:100px}.gcard h3{margin:2px 0 0;font-size:19.5px;line-height:1.25;letter-spacing:-.015em;font-weight:750}.gcard p{margin:0;color:var(--muted);font-size:14.5px;line-height:1.55}.gcard .gc-meta{margin-top:auto;padding-top:10px;color:var(--muted);font-size:13px;font-weight:600}.tools-grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}.tcard{position:relative;background:linear-gradient(140deg,var(--accent-soft),var(--bg) 60%);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;text-decoration:none;color:var(--ink);overflow:clip;box-shadow:var(--shadow);transition:transform .18s,box-shadow .18s}.tcard:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift)}.tcard .ico{font-size:30px;line-height:1}.tcard h3{margin:12px 0 6px;font-size:21px;letter-spacing:-.02em}.tcard p{margin:0;color:var(--ink-soft);font-size:15px}.tcard .go{position:absolute;right:18px;top:20px;font-weight:800;color:var(--accent-deep);font-size:20px;transition:transform .18s}.tcard:hover .go{transform:translate(3px)}.aeris-sec{display:grid;gap:36px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:26px;padding:40px 34px;overflow:clip;position:relative}@media (min-width:760px){.aeris-sec{grid-template-columns:1fr 300px;padding:48px}}.aeris-sec .shot{justify-self:center;width:min(280px,80%);border-radius:26px;box-shadow:var(--shadow-lift)}.aeris-sec h2{font-size:clamp(26px,4vw,34px);letter-spacing:-.025em;margin:0 0 10px}.aeris-sec .lead{color:var(--ink-soft);font-size:17px;margin:0 0 18px;max-width:46ch}.aeris-feats{list-style:none;margin:0 0 24px;padding:0;display:grid;gap:10px}.aeris-feats li{display:flex;gap:10px;align-items:flex-start;font-size:15.5px;color:var(--ink-soft)}.aeris-feats .tick{color:var(--accent-deep);font-weight:800}.upnext{border:1px dashed color-mix(in srgb,var(--accent) 35%,var(--line));border-radius:var(--radius);padding:20px 24px;background:color-mix(in srgb,var(--accent-soft) 40%,var(--bg))}.upnext h3{margin:0 0 8px;font-size:15px;letter-spacing:.06em;text-transform:uppercase;color:var(--accent-ink)}.upnext ul{margin:0;padding:0;list-style:none;display:grid;gap:6px}.upnext li{color:var(--ink-soft);font-size:15.5px;display:flex;gap:10px}.upnext li:before{content:"→";color:var(--accent-deep);font-weight:800}article.post{padding:40px 0 20px}article.post h1{font-size:clamp(30px,5.4vw,44px);line-height:1.08;letter-spacing:-.03em;margin:0 0 16px;text-wrap:balance;font-weight:800}article.post h2{font-size:clamp(22px,3.4vw,28px);letter-spacing:-.02em;margin:44px 0 12px;text-wrap:balance;font-weight:750}article.post h3{font-size:20px;margin:30px 0 8px}article.post p,article.post li{max-width:var(--measure)}article.post p{margin:0 0 18px}article.post ul,article.post ol{padding-left:22px;margin:0 0 18px}article.post li{margin:6px 0}article.post img{border-radius:var(--radius)}article.post table{width:100%;border-collapse:collapse;font-size:16px;margin:20px 0;display:block;overflow-x:auto;border-radius:var(--radius-sm)}article.post th,article.post td{border:1px solid var(--line);padding:10px 14px;text-align:left}article.post th{background:var(--surface)}article.post blockquote{border-left:3px solid var(--accent);margin:20px 0;padding:8px 20px;color:var(--ink-soft);background:var(--accent-soft);border-radius:0 var(--radius-sm) var(--radius-sm) 0}.meta-row{display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;color:var(--muted);font-size:14px;margin:0 0 24px;padding-bottom:22px;border-bottom:1px solid var(--line)}.byline a{color:var(--ink-soft);text-decoration:none}.byline a:hover{color:var(--accent-ink)}.med-review{color:var(--accent-deep);font-weight:700}.short-answer{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:18px 22px;margin:0 0 28px;font-size:17px}.short-answer .lbl{font-size:12px;font-weight:800;letter-spacing:.09em;text-transform:uppercase;color:var(--accent-ink);display:block;margin-bottom:6px}.faq{margin:40px 0}.faq details{border-bottom:1px solid var(--line);padding:14px 0}.faq summary{cursor:pointer;font-weight:700;font-size:17px}.faq summary:hover{color:var(--accent-ink)}.faq details p{margin:10px 0 0;color:var(--ink-soft)}.aeris-cta{background:linear-gradient(135deg,var(--accent-soft),var(--surface));border:1px solid var(--line);border-radius:22px;padding:30px 26px;margin:38px 0;text-align:center}.aeris-cta h3{margin:0 0 6px;font-size:22px;letter-spacing:-.02em}.aeris-cta p{margin:0 auto 18px;max-width:46ch;color:var(--ink-soft)}.related{margin:40px 0;padding-top:24px;border-top:1px solid var(--line)}.related h2{font-size:20px;margin:0 0 12px}.related a{display:block;padding:9px 0;color:var(--accent-ink);text-decoration:none;font-weight:650}.related a:hover{text-decoration:underline}.site-footer{border-top:1px solid var(--line);margin-top:84px;padding:38px 0;color:var(--muted);font-size:14px;background:var(--surface)}.foot-links{display:flex;flex-wrap:wrap;gap:18px;margin:12px 0}.foot-links a{color:var(--ink-soft);text-decoration:none;font-weight:600}.foot-links a:hover{color:var(--accent-ink)}.site-footer .disc{max-width:72ch;margin-top:8px;line-height:1.6}.hub-head{padding:52px 0 8px}.hub-head h1{font-size:clamp(32px,5.6vw,48px);letter-spacing:-.03em;margin:0 0 12px;font-weight:800}.hub-head p{font-size:18.5px;color:var(--ink-soft);max-width:56ch;margin:0}.calc{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:26px 24px;margin:24px 0}.calc-row{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end}.calc label{display:flex;flex-direction:column;gap:8px;font-size:13.5px;font-weight:800;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.05em}.calc input:not([type=datetime-local]),.calc select{border:1.5px solid var(--line);background:var(--bg);color:var(--ink);border-radius:12px;padding:13px 14px;font-size:20px;font-weight:750;font-family:var(--font);min-width:120px}.calc input:focus,.calc select:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}.calc .input-wrap{display:flex;align-items:center;background:var(--bg);border:1.5px solid var(--line);border-radius:12px;padding:0 12px}.calc .input-wrap input{border:0!important;background:transparent;min-width:90px;width:110px;padding:13px 6px}.calc .input-wrap .cur{color:var(--ink);font-weight:800;font-size:18px}.results{display:grid;gap:14px;margin-top:22px;grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}.res{background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:20px 22px}.res.big{background:var(--accent-soft);border-color:transparent}.rn{display:block;font-family:var(--display);font-size:clamp(30px,4.2vw,42px);font-weight:800;letter-spacing:-.03em;line-height:1.08;color:var(--ink);font-variant-numeric:tabular-nums}.res.big .rn{color:var(--accent-deep)}.rl{display:block;font-size:14.5px;color:var(--ink-soft);font-weight:650;margin-top:6px;line-height:1.4}.calc-note{margin:18px 0 0;color:var(--ink);font-size:16.5px;font-weight:650;line-height:1.5}.tool-sub{font-size:19px;color:var(--ink-soft)}