@font-face{font-family:"Be Vietnam Pro";font-weight:400;font-display:swap;src:url(/fonts/be-vietnam-pro-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Be Vietnam Pro";font-weight:400;font-display:swap;src:url(/fonts/be-vietnam-pro-vietnamese-400-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+1EA0-1EF9,U+20AB}
@font-face{font-family:"Be Vietnam Pro";font-weight:600;font-display:swap;src:url(/fonts/be-vietnam-pro-latin-600-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+2000-206F}
@font-face{font-family:"Be Vietnam Pro";font-weight:600;font-display:swap;src:url(/fonts/be-vietnam-pro-vietnamese-600-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+1EA0-1EF9,U+20AB}
@font-face{font-family:Lexend;font-weight:600;font-display:swap;src:url(/fonts/lexend-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:Lexend;font-weight:700;font-display:swap;src:url(/fonts/lexend-latin-700-normal.woff2) format("woff2")}
@font-face{font-family:Lexend;font-weight:700;font-display:swap;src:url(/fonts/lexend-vietnamese-700-normal.woff2) format("woff2");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+1EA0-1EF9,U+20AB}
*{box-sizing:border-box}
body{margin:0;background:#fff;color:#2E3447;font:19px/1.75 "Be Vietnam Pro",system-ui,sans-serif}
a{color:#4338CA}a:hover{color:#312E81}
:focus-visible{outline:2px solid #4F46E5;outline-offset:2px}
.top{border-bottom:1px solid #E4E7F0;position:sticky;top:0;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);z-index:5}
.top .in{max-width:1200px;margin:0 auto;padding:12px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:#0B1020;font:700 20px Lexend,sans-serif}
.logo img{width:34px;height:34px}
.nav{display:flex;align-items:center;gap:20px;font-size:15px;font-weight:600}
.nav a{color:#3B4256;text-decoration:none}
.btn{display:inline-flex;align-items:center;min-height:44px;padding:0 18px;border-radius:10px;background:#4F46E5;color:#fff!important;text-decoration:none;font-weight:600}
.btn:hover{background:#4338CA}
.btn.ghost{background:transparent;border:1px solid #3B4566}
article{max-width:720px;margin:0 auto;padding:64px 24px 96px}
.crumb{font-size:14px;color:#5B6378}.crumb a{color:#5B6378}
h1{margin:16px 0 20px;font:700 clamp(32px,4vw,48px)/1.12 Lexend,sans-serif;color:#0B1020;letter-spacing:-.02em}
.lead{margin:0 0 28px;font-size:21px;color:#3B4256}
.by{display:flex;align-items:center;gap:14px;padding-bottom:28px;border-bottom:1px solid #E4E7F0;font-size:15px;color:#5B6378}
.by .av{width:44px;height:44px;border-radius:50%;object-fit:cover;flex:none}
.by b{display:block;color:#0B1020}
h2{margin:48px 0 12px;font:600 30px/1.25 Lexend,sans-serif;color:#0B1020}
p{margin:0 0 20px}
ul{margin:0 0 20px;padding-left:22px}li{margin-bottom:10px}
pre{margin:0 0 20px;padding:20px 24px;border-radius:12px;background:#0B1020;color:#E6E9FF;font:15px/1.7 ui-monospace,SFMono-Regular,Menlo,monospace;overflow-x:auto}
code{font:16px ui-monospace,SFMono-Regular,Menlo,monospace;background:#F1F2F8;padding:2px 6px;border-radius:6px}
.tldr{margin:48px 0;padding:28px;border-radius:16px;background:#F5F6FA;border:1px solid #E4E7F0}
.tldr strong{display:block;font:600 20px Lexend,sans-serif;color:#0B1020;margin-bottom:10px}.tldr p{margin:0}
details{padding:16px 0;border-bottom:1px solid #E4E7F0}summary{cursor:pointer;font-weight:600;color:#0B1020}details p{margin:8px 0 0}
.cta{margin-top:56px;padding:32px;border-radius:20px;background:#0B1020;color:#C9CEDD;display:flex;flex-direction:column;gap:14px}
.cta strong{font:700 26px/1.2 Lexend,sans-serif;color:#fff}.cta .row{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px}
.next{margin-top:48px;font-size:16px}
footer{background:#0B1020;color:#8B93AD;font-size:14px}
footer .in{max-width:1200px;margin:0 auto;padding:28px 24px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between}
footer a{color:#A5B4FC}
@media (max-width:600px){body{font-size:17px}.nav a:not(.btn){display:none}.lead{font-size:19px}h2{font-size:25px}}
.video{margin:36px auto;max-width:340px}
.video iframe{display:block;width:100%;aspect-ratio:9/16;border:0;border-radius:16px;background:#0B1020}
.video figcaption{margin-top:10px;text-align:center;font-size:14px;color:#5B6378}