@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url(/assets/fonts/inter-normal-vietnamese.woff2) format('woff2');
  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: 'Inter';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url(/assets/fonts/inter-normal-latin.woff2) format('woff2');
  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: 'Montserrat';
  font-style: italic;
  font-weight: 300 800;
  font-display: swap;
  src: url(/assets/fonts/montserrat-italic-vietnamese.woff2) format('woff2');
  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: 'Montserrat';
  font-style: italic;
  font-weight: 300 800;
  font-display: swap;
  src: url(/assets/fonts/montserrat-italic-latin.woff2) format('woff2');
  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: 'Montserrat';
  font-style: normal;
  font-weight: 300 800;
  font-display: swap;
  src: url(/assets/fonts/montserrat-normal-vietnamese.woff2) format('woff2');
  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: 'Montserrat';
  font-style: normal;
  font-weight: 300 800;
  font-display: swap;
  src: url(/assets/fonts/montserrat-normal-latin.woff2) format('woff2');
  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{--ink:#211a13;--gold:#d4af70;--paper:#f7f4ed;--muted:#72685a;--line:#ded3c2;--sans:Montserrat,Arial,sans-serif;--ui:Inter,Arial,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.85;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}img{max-width:100%;display:block}h1,h2,h3,h4,p{margin:0}h1,h2,h3,h4{line-height:1.35;letter-spacing:-.6px}button,a,input{ -webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #ba8742;outline-offset:5px}.page-wrap{width:min(1100px,calc(100% - 80px));margin:auto}.page-header{background:var(--ink);color:#f7edda;min-height:82px}.page-header .page-wrap{display:flex;align-items:center;justify-content:space-between;gap:22px;min-height:82px}.page-brand{font-size:23px;font-weight:800;letter-spacing:1px;color:#e6c288;white-space:nowrap}.page-nav{display:flex;gap:28px;align-items:center;font:13px/1.6 var(--ui)}.page-nav a{min-height:44px;display:inline-flex;align-items:center}.page-nav .nav-cta{padding:10px 18px;border:1px solid #92764f;color:#ecd2a9}.breadcrumb{display:flex;flex-wrap:wrap;gap:11px;font:12px/1.9 var(--ui);color:#89765b;margin:34px 0 42px}.breadcrumb a{text-decoration:underline;text-underline-offset:4px}.eyebrow{color:#977443;font-size:10px;letter-spacing:1.8px;font-weight:700;text-transform:uppercase;margin-bottom:17px}.page-title{font-size:clamp(32px,4vw,49px);font-weight:700;letter-spacing:-1.3px;max-width:800px}.page-lead{font-size:17px;line-height:1.9;color:#716658;max-width:780px;margin-top:22px}.byline{display:flex;align-items:center;gap:11px;margin:26px 0 30px;font:12px/1.8 var(--ui);color:#766957}.author-avatar{width:39px;height:39px;object-fit:cover;object-position:50% 10%;border-radius:50%}.byline strong{color:#4b3e2d;display:block}.article-cover{width:100%;height:auto;aspect-ratio:2;object-fit:cover;margin:0 0 46px;max-height:510px}.article-cover.learning{object-position:50% 40%}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:58px;align-items:start}.article-body{font-size:17px;line-height:1.95;max-width:760px}.article-body p{margin:0 0 22px}.article-body h2,.article-body h3{font-size:23px;line-height:1.5;margin:29px 0 13px;font-weight:600;letter-spacing:-.5px}.article-body ul{margin:20px 0 26px;padding-left:23px}.article-body li{padding-left:6px;margin-bottom:14px}.article-aside{padding:25px 23px;background:#eae3d6;border-top:3px solid #b38e55}.article-aside h2{font-size:20px;line-height:1.5}.article-aside p{font-size:13px;color:#726453;margin:14px 0 20px}.article-aside a{font:600 13px/1.7 var(--ui);display:block;min-height:44px;color:#72532c;text-decoration:underline;text-underline-offset:4px}.page-button{display:inline-flex;justify-content:center;align-items:center;gap:16px;padding:15px 22px;min-height:51px;background:var(--ink);border:1px solid var(--ink);color:#fff9ec;font:600 13px/1.6 var(--ui);text-decoration:none}.page-button.gold{background:var(--gold);border-color:var(--gold);color:#211a13}.page-button.outline{background:transparent;color:var(--ink);border-color:#b8a382}.page-button:hover{filter:brightness(1.1)}.share-box{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:24px 0;margin:38px 0 35px;display:flex;flex-wrap:wrap;align-items:center;gap:12px}.share-box>strong{font-size:13px;margin-right:8px}.share-box button{background:transparent;border:1px solid #c3af90;color:#5b472e;min-height:44px;padding:10px 16px;font:600 12px/1.6 var(--ui)}.share-box 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strong{color:#e7c28c;display:block;font-size:17px;font-family:var(--sans)}.page-footer a{text-decoration:underline;text-underline-offset:5px}.guide-hero{display:grid;grid-template-columns:1.25fr .8fr;gap:40px;align-items:center;margin-bottom:42px}.guide-preview{background:#e9e1d3;border:1px solid #d8c7aa;padding:28px;text-align:center;transform:rotate(2deg)}.guide-preview small{font:10px var(--ui);letter-spacing:1px;color:#8c6b3b}.guide-preview strong{font-size:115px;line-height:1.3;font-weight:500;letter-spacing:-8px;display:block;color:#a78046}.guide-preview p{font-size:16px;font-weight:600;line-height:1.7}.guide-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:27px}.guide-meta{font:12px/1.8 var(--ui);color:#8b775b;margin-top:15px}.checklist{border-top:1px solid var(--line);padding-top:33px}.checklist-heading{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:20px}.checklist-heading h2{font-size:24px}.checklist-heading p{font:13px/1.9 var(--ui);color:#8b6b3c}.question-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:18px}.question-card{padding:24px;border:1px solid #d9cdb9;background:#fffdf8}.question-card label{display:flex;gap:13px;align-items:start;cursor:pointer}.question-card input{accent-color:#a27c42;width:19px;height:19px;flex:none;margin-top:4px}.question-card strong{display:block;font-size:15px;line-height:1.75;font-weight:600}.question-card p{font-size:13px;line-height:1.95;color:#726658;margin:13px 0 0 32px}.guide-note{font-size:12px;color:#837059;margin:20px 0 32px}.guide-contact{background:#e9e1d3;padding:30px;display:flex;justify-content:space-between;align-items:center;gap:24px;margin:40px 0 65px}.guide-contact h2{font-size:23px;line-height:1.5}.guide-contact p{font-size:14px;color:#776651;max-width:550px;margin-top:10px}.guide-contact .page-button{flex:none}.skip-link{position:absolute;left:20px;top:-100px;padding:14px;background:white;z-index:10}.skip-link:focus{top:10px}
@media(max-width:850px){.page-wrap{width:calc(100% - 48px)}.article-layout{grid-template-columns:1fr;gap:27px}.article-aside{display:none}.page-nav{gap:18px}.related-card{grid-template-columns:90px 1fr}.related-card img{width:90px}.guide-hero{grid-template-columns:1.3fr .7fr;gap:23px}.guide-preview{padding:23px 15px}.guide-contact{display:block}.guide-contact .page-button{margin-top:20px}}
@media(max-width:600px){.page-wrap{width:calc(100% - 36px)}.page-header,.page-header .page-wrap{min-height:71px}.page-brand{font-size:19px}.page-nav{gap:14px;font-size:12px}.page-nav .nav-cta{display:none}.breadcrumb{margin:26px 0 32px;font-size:11px;gap:7px}.page-title{font-size:31px;line-height:1.4;letter-spacing:-.8px}.page-lead{font-size:16px;line-height:1.9;margin-top:17px}.byline{margin:23px 0 25px;font-size:11px}.article-cover{aspect-ratio:1.45;margin-bottom:28px}.article-cover.learning{object-fit:contain;background:#e9e1d3;aspect-ratio:1.5}.article-body{font-size:16px;line-height:1.95}.article-body h2,.article-body h3{font-size:21px;margin-top:26px}.share-box{margin-top:28px;padding:22px 0}.share-box>strong{flex-basis:100%;font-size:13px}.share-box button{font-size:12px;padding:11px 15px}.related{padding:20px 0 48px}.related-grid{grid-template-columns:1fr;gap:15px}.related-card{grid-template-columns:90px 1fr;gap:14px;padding:14px}.related-card h3{font-size:14px}.page-footer .page-wrap{display:block}.page-footer .page-wrap>p{margin-top:13px}.guide-hero{display:block;margin-bottom:32px}.guide-preview{display:none}.guide-actions{flex-direction:column;gap:11px}.guide-actions .page-button{width:100%;font-size:13px}.question-list{grid-template-columns:1fr;gap:14px}.checklist-heading{display:block;margin-bottom:20px}.checklist-heading h2{font-size:23px}.checklist-heading p{margin-top:10px}.question-card{padding:21px 18px}.question-card strong{font-size:14px}.question-card p{font-size:13px}.guide-note{font-size:11px}.guide-contact{padding:25px 20px;margin:30px 0 45px}.guide-contact h2{font-size:22px}.guide-contact p{font-size:14px}.guide-contact .page-button{width:100%;padding:15px;font-size:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{.page-header,.breadcrumb,.guide-preview,.guide-actions,.guide-contact,.page-footer,.share-box,.related,.article-aside{display:none}body{background:white;color:black;font-size:11pt}.page-wrap{width:100%}.question-list{grid-template-columns:1fr 1fr;gap:12pt}.question-card{break-inside:avoid;padding:12pt}.question-card strong{font-size:10pt}.question-card p{font-size:9pt}.question-card input{display:none}.question-card p{margin-left:0}.guide-hero{display:block}.page-title{font-size:22pt}.page-lead{font-size:11pt}.article-layout{display:block}.page-title,.page-lead{max-width:none}.article-cover{max-height:220pt;width:100%;object-fit:contain}}

.article-water-photo{position:relative;isolation:isolate;overflow:hidden;background:#d6d8d0;width:100%;height:clamp(350px,50vw,560px);margin:0 0 46px}.article-water-photo:before{content:"";position:absolute;inset:-25px;background:url(/assets/chia-se/ly-nuoc-kangen-phan-dung.jpg) center/cover;filter:blur(20px);opacity:.28;z-index:0}.article-water-photo .article-cover{position:relative;z-index:1;display:block;width:100%;height:100%;aspect-ratio:auto;max-height:none;object-fit:contain;margin:0}@media(max-width:600px){.article-water-photo{height:430px;margin-bottom:28px}}