:root{--navy:#062a57;--blue:#064c92;--teal:#0caeaf;--green:#20ad4b;--muted:#52647b;--line:#e2eaf0;--bg:#f5f8fb}*{box-sizing:border-box}body{margin:0;color:#112c4f;background:white;font-family:Arial,'Helvetica Neue',sans-serif;line-height:1.55}a{text-decoration:none;color:inherit}button,input,textarea,select{font:inherit}.top{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:0 max(4%,calc((100vw - 1340px)/2));position:sticky;top:0;z-index:10;background:#fff;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}.brand img{width:43px;height:43px;object-fit:contain}.brand strong{display:block;font-size:23px;color:#07519b;letter-spacing:-1px;line-height:1.1}.brand .tech{color:#09aeb6;font-weight:800;letter-spacing:-1.3px}.brand small{font-size:8px;letter-spacing:2.1px;display:block;text-align:center;color:#153b6c}.top nav{display:flex;gap:22px;font-size:13px;font-weight:600}.top nav a:hover,.top nav a.active{color:#0878b7}.right{display:flex;align-items:center;gap:12px;white-space:nowrap}.lang{border:0;background:transparent;color:var(--navy);cursor:pointer}.navcta,.btn{display:inline-block;background:var(--navy);color:white;padding:12px 21px;border-radius:4px;font-size:13px;font-weight:700;border:1px solid var(--navy);cursor:pointer}.btn.light{background:white;color:var(--navy);border-color:#c8d6e2}.mobilemenu{display:none;border:0;background:none;font-size:24px}.container{max-width:1340px;margin:auto;padding:0 36px}.eyebrow{font-size:11px;letter-spacing:3px;font-weight:700;color:#316da5;text-transform:uppercase}.hero{min-height:510px;position:relative;display:flex;align-items:center;background:#edf5f3;overflow:hidden}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#f6faf9 0%,#f5faf7 30%,rgba(245,250,247,.92) 43%,rgba(245,250,247,.05) 75%),url('/assets/phoi-canh-benh-vien.jpeg') center 51%/cover}.hero .container{width:100%;position:relative}.hero h1{max-width:590px;font-size:clamp(36px,4.4vw,64px);letter-spacing:-2px;line-height:1.12;margin:22px 0;color:var(--navy)}.hero p{max-width:535px;color:#354b63;font-size:16px}.actions{display:flex;gap:12px;margin-top:27px}.hero .note{position:absolute;bottom:15px;right:25px;background:#ffffffd9;padding:6px 10px;border-radius:4px;color:#49637c;font-size:11px}.section{padding:78px 0}.section.alt{background:var(--bg)}.section h2{font-size:clamp(28px,3vw,43px);letter-spacing:-1.2px;line-height:1.2;margin:12px 0 15px;color:var(--navy)}.sectionlead{max-width:770px;color:var(--muted);margin:0 0 30px}.sectionhead{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:28px}.sectionhead h2{max-width:830px;margin-bottom:0}.textlink{color:#064b8d;font-size:13px;font-weight:bold;text-decoration:underline;text-underline-offset:5px;white-space:nowrap}.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.card{background:white;border:1px solid var(--line);border-radius:7px;overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}.card:hover{transform:translateY(-3px);box-shadow:0 12px 28px #002b4b13}.card .photo{height:175px;background:#dceaf3;overflow:hidden}.card .photo img{width:100%;height:100%;object-fit:cover}.card .body{padding:21px;display:flex;flex-direction:column;flex:1}.card h3{font-size:19px;line-height:1.25;margin:0 0 10px;color:var(--navy)}.card p{font-size:13px;color:var(--muted);margin:0 0 22px;flex:1}.card a{color:#07538c;font-weight:700;font-size:13px}.aboutgrid{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:60px}.aboutgrid img{width:100%;border-radius:7px;max-height:390px;object-fit:cover}.feature{background:#eaf4fb;padding:66px 0}.featuregrid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}.featuregrid ul{list-style:none;padding:0;display:grid;gap:16px}.featuregrid li{padding:16px 18px;background:white;border-left:3px solid #12aeb0}.banner{background:linear-gradient(105deg,#03254a,#075e91);color:white;padding:65px 0}.banner h2{color:white}.banner .container{display:flex;align-items:center;justify-content:space-between;gap:25px}.pagehero{background:linear-gradient(90deg,#f0f6fa 0%,#f1f7fb 58%,#dcecf5 100%);padding:80px 0;position:relative;overflow:hidden}.pagehero.withimage{background:linear-gradient(90deg,#f4f8fa 0%,rgba(244,248,250,.98) 36%,rgba(244,248,250,.28) 85%),url('/assets/phoi-canh-benh-vien.jpeg') center/cover}.pagehero h1{font-size:clamp(36px,4.5vw,58px);line-height:1.1;max-width:760px;color:var(--navy);margin:10px 0 18px}.pagehero p{max-width:630px;color:#445a70;font-size:17px}.breadcrumb{font-size:12px;color:#60788f;margin-bottom:30px}.twocol{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}.twocol h2{margin-top:0}.twocol p,.article p{color:#41566c}.pillrow{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0 30px}.pill{border:1px solid #cbdbe6;background:white;color:#134a80;padding:9px 16px;border-radius:40px;cursor:pointer;font-size:13px}.pill.selected{background:var(--navy);color:white}.article{max-width:850px;margin:0 auto}.article h2{font-size:26px;color:var(--navy);margin-top:34px}.article p{font-size:17px}.contactgrid{display:grid;grid-template-columns:1fr 1.2fr;gap:55px}.form{border:1px solid var(--line);padding:28px;border-radius:8px;background:white}.form label{font-size:13px;font-weight:700;display:block;margin-bottom:6px}.form input,.form select,.form textarea{width:100%;padding:12px;border:1px solid #cbd9e4;border-radius:4px;margin-bottom:18px;background:#fff}.form textarea{height:120px}.form .notice{font-size:12px;color:var(--muted)}footer{background:#041d38;color:#e3ebf5;padding:55px 0 25px}footer .footgrid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}footer .brand strong{color:white}footer h4{font-size:14px}footer a{display:block;font-size:13px;color:#d4dfed;margin:10px 0}footer p{font-size:13px;color:#c4d1df}footer .copyright{margin-top:35px;border-top:1px solid #2c445e;padding-top:20px;font-size:12px;color:#b9c8d6}.center{text-align:center}.stacked{display:inline-flex;flex-direction:column;align-items:center;line-height:1.05}.stacked img{width:76px;height:76px;object-fit:contain;margin-bottom:7px}.stacked strong{font-size:40px;color:#07519b;letter-spacing:-1.5px}.stacked b{font-size:36px;color:#0aaeb8;letter-spacing:1px}.stacked small{font-size:10px;letter-spacing:3px;color:#1b4a77;margin-top:7px}.empty{padding:30px;border:1px dashed #b9c9d7;border-radius:6px;color:var(--muted)}@media(max-width:980px){.top nav{gap:10px;font-size:11px}.cards{grid-template-columns:repeat(2,1fr)}.aboutgrid,.featuregrid{gap:30px}}@media(max-width:740px){.top{height:68px;padding:0 18px}.mobilemenu{display:block;margin-left:auto}.top nav{display:none;position:absolute;top:68px;left:0;right:0;background:white;padding:18px;flex-direction:column;box-shadow:0 12px 20px #001d391c;font-size:15px}.top nav.open{display:flex}.right .navcta{display:none}.container{padding:0 20px}.hero{min-height:590px;align-items:flex-start;padding-top:55px}.hero:before{background:linear-gradient(180deg,#f5faf8 0%,rgba(245,250,248,.96) 38%,rgba(245,250,248,.05) 100%),url('/assets/phoi-canh-benh-vien.jpeg') 57% bottom/auto 62% no-repeat}.hero h1{font-size:38px}.hero p{font-size:14px}.hero .note{font-size:10px}.section{padding:52px 0}.cards{grid-template-columns:1fr}.card .photo{height:220px}.aboutgrid,.featuregrid,.twocol,.contactgrid,footer .footgrid{grid-template-columns:1fr}.sectionhead{display:block}.banner .container{display:block}.pagehero{padding:55px 0}.pagehero.withimage{background:linear-gradient(90deg,#f4f8fae8,#f4f8fad9),url('/assets/phoi-canh-benh-vien.jpeg') center/cover}.actions{flex-wrap:wrap}.brand strong{font-size:20px}}
/* Layout V1.7 */
.hero{display:grid;grid-template-columns:46% 54%;min-height:540px;background:#f3f8f8}.hero:before{display:none}.hero-text{padding:85px 7% 70px max(8%,calc((100vw - 1300px)/2));align-self:center}.hero h1{font-size:clamp(36px,3.8vw,60px);line-height:1.13;margin:15px 0 22px}.hero p{color:#415a6d;max-width:540px}.hero-photo{position:relative;height:100%;min-height:520px}.hero-photo img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover}.photo-caption{position:absolute;right:18px;bottom:18px;background:#ffffffeb;padding:8px 12px;font-size:11px;max-width:330px}.outline{background:white;color:var(--navy)}.section{max-width:1340px;margin:auto;padding:72px 36px}.section-head{margin-bottom:25px}.section-head h2{margin-top:9px}.cards.four{grid-template-columns:repeat(4,minmax(0,1fr))}.cards.three{grid-template-columns:repeat(3,minmax(0,1fr))}.content-card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:5px;overflow:hidden;min-width:0;transition:transform .2s}.content-card:hover{transform:translateY(-4px);box-shadow:0 10px 26px #092f5318}.content-card>img,.abstract-image{width:100%;height:180px;object-fit:cover}.abstract-image{display:grid;place-items:center;background:linear-gradient(135deg,#eaf5f6,#bcd7e8)}.abstract-image span{font-size:70px;color:#0a6d9a}.tone2{background:linear-gradient(135deg,#edf9f6,#b9e7d7)}.tone3{background:linear-gradient(135deg,#f3f6fb,#c2d1eb)}.tone4{background:linear-gradient(135deg,#e8f2fa,#8eb9d5)}.card-body{padding:21px;flex:1;display:flex;flex-direction:column}.card-body h3{font-size:18px;line-height:1.3;margin:0 0 8px;color:var(--navy)}.card-body p{font-size:13px;color:var(--muted);margin:0 0 22px;flex:1}.more,.text-link{color:#07538c;font-weight:700;font-size:13px}.research-band{padding:80px max(7%,calc((100vw - 1250px)/2));background:linear-gradient(100deg,#e7f2f8,#c7e2ee);display:flex;align-items:center;justify-content:space-between;gap:35px}.research-band>div:first-child{max-width:700px}.research-band h2{font-size:42px;color:var(--navy);margin:10px 0}.research-symbol{font-size:160px;color:#157d9a;opacity:.5}.partner{background:#063360;color:white;padding:55px max(7%,calc((100vw - 1250px)/2));display:flex;justify-content:space-between;align-items:center;gap:30px}.partner h2{color:white;font-size:30px;margin:0}.partner p{color:#d8e7f0}.page-intro{background:#edf5f9;padding:85px max(7%,calc((100vw - 1250px)/2));min-height:290px}.page-intro h1{font-size:clamp(38px,4vw,58px);line-height:1.15;color:var(--navy);max-width:850px;margin:12px 0}.page-intro p{max-width:750px;color:#52647b}.about-hero{display:grid;grid-template-columns:1fr 1fr;gap:35px;align-items:center}.about-hero img{width:100%;max-height:340px;object-fit:cover}.plain-card{padding:30px;border:1px solid var(--line);border-radius:6px}.plain-card h3{color:var(--navy)}.detail-layout{display:grid;grid-template-columns:1.3fr 1fr;gap:65px}.detail-layout h2{font-size:27px}.detail-layout p{color:#52647b}.detail-aside img{width:100%}.detail-aside small{color:#60758c}.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:60px}.contact-grid form{padding:30px;border:1px solid var(--line);border-radius:6px}.contact-grid label{display:block;margin-bottom:14px;font-weight:600}.contact-grid input,.contact-grid textarea{display:block;width:100%;margin-top:5px;padding:12px;border:1px solid #cad8e4;border-radius:4px}.muted{font-size:13px;color:#62758a}.footer-inner{max-width:1340px;margin:auto;display:grid;grid-template-columns:2fr 1fr 1.5fr 1.2fr;gap:40px;padding:0 36px}.footer-inner a{display:block}.footer-brand img{width:45px;vertical-align:middle;margin-right:8px}.footer-brand strong{font-size:23px}.footer-brand strong span{color:#23c5c4}.footer-bottom{max-width:1340px;margin:40px auto 0;border-top:1px solid #36516a;padding:20px 36px 0;font-size:12px}.footer-bottom span{float:right}.top nav.show{display:flex}
@media(max-width:900px){.hero{grid-template-columns:1fr}.hero-text{padding:55px 30px}.hero-photo{height:330px;min-height:330px}.cards.four{grid-template-columns:repeat(2,1fr)}.footer-inner{grid-template-columns:repeat(2,1fr)}}
@media(max-width:740px){.top nav.show{display:flex}.hero h1{font-size:38px}.hero-photo{height:270px;min-height:270px}.section{padding:48px 20px}.cards.four,.cards.three{grid-template-columns:1fr}.research-band,.partner{padding:50px 20px;display:block}.research-symbol{display:none}.page-intro{padding:55px 20px}.about-hero,.detail-layout,.contact-grid{grid-template-columns:1fr}.footer-inner{grid-template-columns:1fr;padding:0 20px}}

.detail-body{min-width:0}.detail-group{position:relative;border-bottom:1px solid var(--line);padding:12px 0 27px;margin-bottom:22px}.detail-group h2{margin:6px 0 14px}.detail-group ul{padding-left:21px;margin:0}.detail-group li{padding:6px 0;color:#3b526b}.section-number{color:#1674b4;font-size:12px;font-weight:700;letter-spacing:.2em}.disclosure{background:#f0f5f8;border-left:3px solid #1d7a9b;padding:17px 20px;margin:26px 0;color:#28415e}.disclosure p{margin:6px 0 0}.aside-note{padding:22px;background:#f4f8fa;margin-top:20px}.aside-note p{color:#3b526b}.detail-aside img{width:100%;height:auto;max-height:420px;object-fit:cover}.detail-aside small{display:block;margin-top:8px;color:#64748b}@media(max-width:700px){.detail-group{padding-bottom:18px}.aside-note{padding:14px}}

/* Vietlife Tech V2.0 */
.top nav{gap:14px}.top nav a{font-size:12px}.badge{display:inline-block;color:#116f59;background:#e8f6ef;padding:4px 8px;font-size:10px;font-weight:700;align-self:flex-start;margin-bottom:12px}.detail-visual{background:linear-gradient(135deg,#e6f3f8,#b5d8e6);min-height:320px;padding:45px;display:flex;flex-direction:column;justify-content:center}.detail-visual span{letter-spacing:.22em;font-size:11px;color:#23648a}.detail-visual h2{font-size:33px;color:#062a57}.detail-visual p{color:#31516d}.article-paragraph{font-size:17px;line-height:1.9;color:#364d65;margin:25px 0}.contact-grid select{width:100%;padding:12px;border:1px solid #cad8e4;border-radius:4px;margin-top:5px;background:white}.contact-grid button:disabled{opacity:.55;cursor:not-allowed}.section.alt{max-width:none;padding-left:max(36px,calc((100vw - 1268px)/2));padding-right:max(36px,calc((100vw - 1268px)/2))}@media(max-width:1150px){.top{gap:12px}.top nav{gap:9px}.top nav a{font-size:11px}.brand strong{font-size:19px}.right{gap:5px}}@media(max-width:940px){.mobilemenu{display:block}.top nav{display:none;position:absolute;top:76px;left:0;right:0;background:white;flex-direction:column;padding:18px 25px;box-shadow:0 10px 25px #08263b24}.top nav.show{display:flex}.top nav a{font-size:15px;padding:8px}.section.alt{padding-left:25px;padding-right:25px}}

/* V2.1: Trang giới thiệu sản phẩm */
.product-deep{padding-top:24px}.feature-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:28px 0 52px}.feature-strip>div{border:1px solid #dce7ef;border-radius:16px;padding:26px;background:#f8fbfd}.feature-strip h3{font-size:19px;color:#092d50}.feature-index{font-size:13px;font-weight:800;color:#1687a0}.demo-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:20px 0}.demo-heading h2{font-size:28px}.demo-heading span,.preview-disclaimer{color:#5c6e7e;font-size:13px}.product-preview{border:1px solid #cddce6;box-shadow:0 18px 55px #092b5014;border-radius:18px;overflow:hidden;background:white}.preview-top{display:flex;justify-content:space-between;background:#0a335e;color:white;padding:20px 28px;font-weight:750}.preview-dots{letter-spacing:5px;color:#89b8ce}.preview-tabs{display:flex;gap:20px;background:#f1f6f9;padding:15px 26px;flex-wrap:wrap}.preview-tabs span{font-size:14px;color:#526b7c}.preview-tabs .selected{color:#0b4778;font-weight:750;border-bottom:2px solid #1485a0;padding-bottom:5px}.preview-table{padding:16px 24px}.preview-row{display:grid;grid-template-columns:1fr 2fr 1fr;gap:12px;padding:16px 12px;border-bottom:1px solid #e8eff4;color:#29475e;font-size:14px}.preview-head{background:#eaf1f5;font-weight:750;border-radius:7px}.preview-disclaimer{margin:0;padding:16px 28px 22px}.product-actions{display:flex;gap:16px;flex-wrap:wrap;margin-top:26px}.print-btn{cursor:pointer}.footer-brand img{object-fit:contain}@media(max-width:720px){.feature-strip{grid-template-columns:1fr}.demo-heading{display:block}.preview-row{font-size:11px;grid-template-columns:1fr 1.4fr 1fr}.preview-table{padding:8px}.preview-tabs{gap:10px}}
@media print{.top,#nav,.right,.partner,.product-actions,#footer{display:none!important}.product-preview{box-shadow:none}.section{padding:20px 0!important}}

/* V2.2 */
.commercial{border-top:1px solid #e4ebf1}.commercial-intro{max-width:780px}.commercial-intro p{font-size:1.12rem;line-height:1.75}.commercial-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:3rem;margin-top:2rem}.commercial-grid li{margin:.85rem 0;line-height:1.6}.commercial-callout{background:#edf5f7;border-radius:16px;padding:2rem}.faq{max-width:850px;margin-top:3rem}.faq details{border-bottom:1px solid #dce5eb;padding:1.1rem 0}.faq summary{cursor:pointer;font-weight:650}.faq details p{line-height:1.7;color:#3e5365}@media(max-width:780px){.commercial-grid{grid-template-columns:1fr;gap:1rem}}

/* V2.3: accessible consent row and feedback */
.consent-row{display:flex!important;align-items:flex-start;gap:12px;line-height:1.5;font-size:.9rem}.consent-row input{width:18px;height:18px;flex:none;margin-top:3px}.consent-row span{display:block}#formStatus{min-height:1.5em}

/* V3.1: accessibility and mobile polish */
.skip-link{position:fixed;top:-80px;left:16px;z-index:9999;background:#062a57;color:#fff;padding:12px 18px;border-radius:4px}.skip-link:focus{top:12px}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #087f96;outline-offset:3px}#app:focus{outline:none}html{scroll-behavior:smooth}img{max-width:100%}.preview-table{overflow-x:auto}.preview-row{min-width:400px}.contact-grid input,.contact-grid textarea,.contact-grid select{font-size:16px}.top{z-index:100}.content-card:focus-within{box-shadow:0 0 0 3px #a2d9e2}@media(max-width:740px){.top{padding-left:14px;padding-right:14px}.right .navcta{display:none}.brand small{font-size:8px}.brand strong{font-size:18px}.hero-text{padding:48px 20px}.hero h1{font-size:clamp(30px,8vw,38px)}.commercial-callout{padding:22px}.preview-row{font-size:12px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

/* Language switch is removed entirely when the site runs in single-language mode. */
#lang[hidden]{display:none!important}