:root{
  --main:#25AAE1; --main2:#1B8EC5; --main3:#7DD3F0; --main4:#E8F6FC;
  --dark:#0d2b3e; --text:#333; --muted:#6b7a86; --bg:#fff; --bg2:#F5F9FC;
  --radius:10px; --shadow:0 6px 24px rgba(13,43,62,.08);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Roboto',sans-serif;color:var(--text);background:var(--bg);line-height:1.6}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.container{max-width:1240px;margin:0 auto;padding:0 16px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 26px;border-radius:999px;font-weight:500;cursor:pointer;border:0;transition:.25s;font-family:inherit;font-size:15px}
.btn-primary{background:var(--main);color:#fff}
.btn-primary:hover{background:var(--main2)}
.btn-outline{border:1.5px solid var(--main);color:var(--main);background:transparent}
.btn-outline:hover{background:var(--main);color:#fff}

/* Topbar */
.topbar{background:var(--dark);color:#cfe6f2;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:38px;gap:12px}
.topbar .social{display:flex;gap:14px}
.topbar .social a:hover{color:var(--main3)}

/* Header */
header{position:sticky;top:0;z-index:50;background:#fff;box-shadow:0 2px 12px rgba(0,0,0,.05)}
header .container{display:flex;align-items:center;justify-content:space-between;height:76px;gap:20px}
.logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:26px;color:var(--main2);letter-spacing:1px;line-height:1.2}
.logo i{font-size:28px;color:var(--main)}
.logo img{height:46px;width:auto}

.logo small{display:block;font-size:10px;font-weight:500;letter-spacing:2px;color:var(--muted)}
nav ul{display:flex;list-style:none;gap:28px}
nav a{font-weight:500;padding:8px 0;position:relative}
nav a::after{content:"";position:absolute;left:0;bottom:18px;height:2px;width:0;background:var(--main);transition:.25s}
nav a:hover,nav a.active{color:var(--main)}
nav a:hover::after,nav a.active::after{width:100%}
/* Submenu */
.menu .has-sub{position:relative}
.menu .has-sub>a i{font-size:10px;margin-left:4px}
.sub-menu{display:block;position:absolute;top:100%;left:-16px;min-width:240px;background:#fff;list-style:none;border-radius:8px;box-shadow:0 12px 30px rgba(13,43,62,.15);padding:8px 0;opacity:0;visibility:hidden;transform:translateY(10px);transition:.25s;border-top:3px solid var(--main);z-index:80}
.sub-menu .sub-menu{top:-11px;left:100%}
.menu li:hover>.sub-menu{opacity:1;visibility:visible;transform:none}
.sub-menu li a{display:flex;justify-content:space-between;align-items:center;padding:9px 18px;font-weight:400;font-size:14px}
.sub-menu li a::after{display:none}
.sub-menu li a:hover{background:var(--main4);color:var(--main2);padding-left:22px}
.menu>li>a{display:inline-flex;align-items:center;padding:26px 0}
.header-actions{display:flex;align-items:center;gap:18px}
.hotline{display:flex;align-items:center;gap:10px}
.hotline i{width:40px;height:40px;border-radius:50%;background:var(--main4);color:var(--main);display:grid;place-items:center}
.hotline span{font-size:12px;color:var(--muted);display:block;line-height:1.2}
.hotline b{color:var(--main2);font-size:17px}
.menu-toggle{display:none;background:none;border:0;font-size:24px;cursor:pointer;color:var(--dark)}

/* Slider */
.slider{position:relative;overflow:hidden;background:#000}
.slides{display:flex;transition:transform .7s ease}
.slide{min-width:100%;aspect-ratio:1496/648}
.slide img{width:100%;height:100%;object-fit:cover}
.slider-btn{position:absolute;top:50%;transform:translateY(-50%);width:46px;height:46px;border-radius:50%;border:0;background:rgba(255,255,255,.8);color:var(--dark);cursor:pointer;font-size:16px;transition:.2s}
.slider-btn:hover{background:var(--main);color:#fff}
.slider-btn.prev{left:20px}.slider-btn.next{right:20px}
.dots{position:absolute;bottom:56px;left:50%;transform:translateX(-50%);display:flex;gap:8px}
.dots button{width:10px;height:10px;border-radius:999px;border:0;background:rgba(255,255,255,.6);cursor:pointer;transition:.3s}
.dots button.active{width:30px;background:var(--main)}

/* Policy */
.policy{margin-top:-40px;position:relative;z-index:2}
.policy-grid{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-radius:var(--radius);box-shadow:var(--shadow)}
.policy-item{display:flex;gap:14px;align-items:center;padding:24px 22px}
.policy-item+.policy-item{border-left:1px solid #eef2f5}
.policy-item i{font-size:30px;color:var(--main)}
.policy-item b{display:block;font-size:15px}
.policy-item span{font-size:13px;color:var(--muted)}

/* Section */
section,.cta{scroll-margin-top:76px}
section{padding:70px 0}
.sec-head{text-align:center;margin-bottom:40px}
.sub{color:var(--main);font-weight:500;letter-spacing:2px;text-transform:uppercase;font-size:13px}
.sec-head h2{font-size:32px;color:var(--dark);margin:6px 0 10px;font-weight:700}
.sec-head p{color:var(--muted);max-width:640px;margin:0 auto}
.sec-head h2::after{content:"";display:block;width:60px;height:3px;background:var(--main);margin:12px auto 0;border-radius:3px}

/* Tabs */
.tabs{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-bottom:32px}
.tabs button{padding:9px 22px;border-radius:999px;border:1px solid #dbe6ee;background:#fff;cursor:pointer;font-family:inherit;font-size:14px;font-weight:500;color:var(--text);transition:.2s}
.tabs button.active,.tabs button:hover{background:var(--main);border-color:var(--main);color:#fff}

/* Products */
.products{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.p-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:0 2px 10px rgba(0,0,0,.06);transition:.3s;display:flex;flex-direction:column}
.p-card:hover{transform:translateY(-6px);box-shadow:0 14px 34px rgba(13,43,62,.14)}
.p-img{position:relative;aspect-ratio:510/600;overflow:hidden;background:var(--bg2)}
.p-link{display:block;width:100%;height:100%}
.p-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.p-card:hover .p-img img{transform:scale(1.06)}
.badge{position:absolute;top:12px;left:12px;background:var(--main);color:#fff;font-size:12px;font-weight:500;padding:3px 10px;border-radius:4px}
.badge.hot{background:#e53935}
.p-actions{position:absolute;right:12px;top:12px;display:flex;flex-direction:column;gap:8px;opacity:0;transform:translateX(10px);transition:.3s}
.p-card:hover .p-actions{opacity:1;transform:none}
.p-actions button{width:36px;height:36px;border-radius:50%;border:0;background:#fff;color:var(--dark);cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,.12)}
.p-actions button:hover{background:var(--main);color:#fff}
.p-body{padding:16px 16px 18px;display:flex;flex-direction:column;flex:1}
.p-cat{font-size:12px;color:var(--main);text-transform:uppercase;letter-spacing:1px}
.p-name{font-size:16px;font-weight:500;color:var(--dark);margin:4px 0 8px;line-height:1.4;min-height:44px}
.p-name:hover{color:var(--main)}
.p-feat{font-size:13px;color:var(--muted);list-style:none;margin-bottom:14px}
.p-feat li::before{content:"\f00c";font-family:"Font Awesome 5 Free";font-weight:900;color:var(--main);margin-right:6px;font-size:11px}
.p-foot{margin-top:auto;display:flex;justify-content:space-between;align-items:center;gap:8px}
.p-price{font-weight:700;color:#e53935;font-size:17px}
.p-foot .btn{padding:8px 16px;font-size:13px}
.hidden{display:none!important}

/* Feature */
.feature{background:linear-gradient(135deg,var(--dark),#13506f);color:#fff}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.feature-img{border-radius:16px;overflow:hidden;box-shadow:0 20px 50px rgba(0,0,0,.35)}
.feature .sub{color:var(--main3)}
.feature h2{font-size:34px;margin:8px 0 16px;line-height:1.3}
.feature p{color:#c7dbe6;margin-bottom:24px}
.feat-list{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:30px}
.feat-list div{display:flex;gap:12px;align-items:flex-start}
.feat-list p{margin:0}
.feat-list i{width:42px;height:42px;flex:none;border-radius:10px;background:rgba(37,170,225,.18);color:var(--main3);display:grid;place-items:center;font-size:18px}
.feat-list b{display:block;color:#fff}
.feat-list span{font-size:13px;color:#a9c6d6}

/* CTA */
.cta{background:linear-gradient(90deg,var(--main2),var(--main));color:#fff;padding:50px 0}
.cta .container{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta h2{font-size:26px}
.cta form{display:flex;gap:10px;flex-wrap:wrap}
.cta input{padding:13px 18px;border-radius:999px;border:0;min-width:220px;font-family:inherit;font-size:14px}
.cta .btn{background:var(--dark);color:#fff}
.cta .btn:hover{background:#000}

/* Footer - chăm sóc sức khỏe từ nguồn nước */
footer{position:relative;overflow:hidden;color:#2a4a5c;font-size:14.5px;background:linear-gradient(180deg,#e9f8fd 0%,#c9eef9 55%,#9fdcf2 100%)}
.f-deco{position:absolute;inset:0;pointer-events:none;z-index:0}
.f-deco .drop{position:absolute;color:rgba(37,170,225,.13)}
.f-deco .med{position:absolute;color:rgba(255,255,255,.75)}
.f-wave-top{display:block;width:100%;height:70px;position:relative;z-index:1}
.f-waves{position:absolute;left:0;right:0;bottom:0;width:110%;height:180px;z-index:0}
.f-waves path{animation:wave 12s ease-in-out infinite alternate}
.f-waves path:nth-child(2){animation-duration:9s}
@keyframes wave{to{transform:translateX(-60px)}}
.bubble{position:absolute;bottom:-20px;border-radius:50%;background:radial-gradient(circle at 30% 30%,#fff,rgba(255,255,255,.2));opacity:.6;animation:rise linear infinite}
@keyframes rise{to{transform:translateY(-520px);opacity:0}}
.f-main{position:relative;z-index:1;padding:30px 0 10px}
.f-grid{display:grid;grid-template-columns:1.5fr 1.2fr .9fr .9fr 1.3fr;gap:32px}
footer h4{color:var(--dark);font-size:18px;margin-bottom:18px;position:relative;padding-bottom:10px}
footer h4::after{content:"";position:absolute;left:0;bottom:0;width:36px;height:3px;border-radius:3px;background:var(--main)}
footer ul{list-style:none}
footer li{margin-bottom:11px}
footer a{transition:.2s}
footer li a:hover{color:var(--main2)}
footer .logo{color:var(--main2);margin-bottom:14px}
.f-about p{margin-bottom:16px;line-height:1.7}
.f-contact li{display:flex;gap:12px;align-items:flex-start}
.f-contact i{flex:none;width:30px;height:30px;border-radius:50%;background:#fff;color:var(--main);display:grid;place-items:center;font-size:13px;box-shadow:0 2px 8px rgba(37,170,225,.2)}
.f-list li i{color:var(--main);font-size:11px;margin-right:6px}
.f-social-list a{display:flex;align-items:center;gap:12px;background:rgba(255,255,255,.65);padding:8px 12px;border-radius:999px}
.f-social-list a:hover{background:#fff;transform:translateX(4px)}
.f-social-list i{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:13px;flex:none}
.ic-fb{background:#1877f2}.ic-sp{background:#ee4d2d}.ic-lz{background:#0f146d}.ic-tt{background:#111}
.f-quote{margin-top:30px;text-align:center;font-style:italic;color:var(--main2);font-size:16px;font-weight:500}
.f-quote i{color:var(--main);margin:0 8px}
.copyright{position:relative;z-index:1;margin-top:24px;padding:16px 0;text-align:center;font-size:13px;color:#fff;background:rgba(13,43,62,.55)}

/* Floating */
.float{position:fixed;right:18px;bottom:20px;display:flex;flex-direction:column;gap:12px;z-index:60}
.float a{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:22px;box-shadow:0 6px 18px rgba(0,0,0,.2)}
.float .call{background:#e53935;animation:pulse 1.6s infinite}
.float .zalo{background:#0068ff;font-weight:700;font-size:14px}
.float .top{background:var(--dark);font-size:16px;opacity:0;pointer-events:none;transition:.3s}
.float .top.show{opacity:1;pointer-events:auto}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(229,57,53,.6)}100%{box-shadow:0 0 0 16px rgba(229,57,53,0)}}

/* Modal */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.6);display:none;align-items:center;justify-content:center;z-index:100;padding:16px}
.modal.open{display:flex}
.modal-box{background:#fff;border-radius:14px;max-width:820px;width:100%;display:grid;grid-template-columns:1fr 1fr;position:relative;max-height:90vh;overflow-y:auto}
.modal-box img{width:100%;height:100%;object-fit:cover}
.modal-info{padding:30px}
.modal-info h3{font-size:22px;color:var(--dark);margin:6px 0 12px}
.modal-close{position:absolute;top:10px;right:12px;border:0;background:#fff;width:34px;height:34px;border-radius:50%;cursor:pointer;font-size:18px;box-shadow:0 2px 8px rgba(0,0,0,.15)}

/* Health block */
.health{padding:70px 0 40px}
.health .sec-head h2{color:#4fb3c4}
.health .sec-head h2::after{display:none}
.health .sec-head p{max-width:none;color:#333;letter-spacing:.5px}
.health-grid{display:grid;grid-template-columns:1fr 1.05fr 1fr;gap:20px;align-items:center}
.h-col{display:flex;flex-direction:column;gap:40px}
.h-item{display:flex;gap:18px;align-items:flex-start}
.h-col.left .h-item{flex-direction:row-reverse;text-align:left}
.h-icon{flex:none;width:68px;height:68px;border-radius:50%;background:var(--main4);color:#4fb3c4;display:grid;place-items:center;font-size:28px;transition:.3s}
.h-item:hover .h-icon{background:#4fb3c4;color:#fff;transform:rotate(-8deg) scale(1.05)}
.h-item:nth-child(3n) .h-icon.heart{color:#f26b6b}
.h-item h3{font-size:19px;color:#222;margin-bottom:8px;line-height:1.35}
.h-item p{font-size:14.5px;color:#555}
.doctor{position:relative;text-align:center;padding:20px 0 0}
.doctor::before{content:"";position:absolute;left:50%;top:0;width:340px;height:340px;transform:translateX(-50%);border-radius:50%;background:radial-gradient(circle,#d7f1fb 0%,rgba(215,241,251,0) 70%);z-index:0}
.ceo-frame{position:relative;z-index:1;width:300px;max-width:100%;margin:0 auto;border-radius:50%/42%;overflow:hidden;border:6px solid #fff;box-shadow:0 18px 40px rgba(13,43,62,.18),0 0 0 2px var(--main3)}
.ceo-frame img{width:100%;aspect-ratio:302/437;object-fit:cover;display:block}
.ceo-card{position:relative;z-index:2;margin:-34px auto 0;width:max-content;max-width:100%;background:#fff;border-radius:14px;padding:12px 22px;box-shadow:var(--shadow);border-bottom:3px solid var(--main)}
.ceo-card b{display:block;font-size:18px;color:var(--dark)}
.ceo-card span{display:block;font-size:13px;color:var(--main2);font-weight:500}
.ceo-card small{display:block;font-size:12.5px;color:var(--muted);margin-top:2px}
.ceo-exp{position:absolute;z-index:2;top:40px;right:calc(50% - 190px);width:84px;height:84px;border-radius:50%;background:linear-gradient(135deg,var(--main),var(--main2));color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1.05;box-shadow:0 8px 20px rgba(37,170,225,.4);border:3px solid #fff}
.ceo-exp b{font-size:24px}.ceo-exp small{font-size:10.5px;text-align:center}

/* Science */
.science{position:relative;min-height:520px;display:flex;align-items:center;color:#fff;overflow:hidden;padding:90px 0;text-align:center}
.science video,.science .sci-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.science::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,43,62,.55),rgba(13,43,62,.75));z-index:1}
.science .container{position:relative;z-index:2}
.pulse-title{display:inline-flex;align-items:center;gap:14px;font-size:34px;font-weight:700;color:#3cc3f5;text-transform:uppercase;margin-bottom:18px}
.pulse-title svg{width:80px;height:40px;flex:none}
.science p{max-width:960px;margin:0 auto 30px;font-size:18px;line-height:1.75;color:#eaf6fb}
.sci-badges{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin-bottom:30px}
.sci-badges span{background:rgba(255,255,255,.12);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.25);padding:8px 16px;border-radius:999px;font-size:14px}
.sci-badges i{color:#3cc3f5;margin-right:6px}

/* News */
.news{background:var(--bg2)}
.news .sec-head h2{display:inline-flex;align-items:center;gap:14px;color:var(--main)}
.news .sec-head h2::after{display:none}
.news .sec-head h2 svg{width:80px;height:40px}
.news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.n-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:0 2px 12px rgba(0,0,0,.06);display:flex;flex-direction:column;transition:.3s}
.n-card:hover{transform:translateY(-6px);box-shadow:0 14px 34px rgba(13,43,62,.14)}
.n-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#dfeef6}
.n-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.n-card:hover .n-thumb img{transform:scale(1.07)}
.n-date{position:absolute;top:12px;left:12px;background:#fff;border-radius:8px;padding:4px 10px;text-align:center;line-height:1.1;box-shadow:0 2px 8px rgba(0,0,0,.12)}
.n-date b{display:block;color:#c0392b;font-size:20px}
.n-date small{font-size:11px;color:var(--muted)}
.n-tag{position:absolute;bottom:12px;left:12px;background:var(--main);color:#fff;font-size:11px;padding:3px 10px;border-radius:4px;text-transform:uppercase;letter-spacing:.5px}
.n-body{padding:18px;display:flex;flex-direction:column;flex:1}
.n-body h3{font-size:16px;line-height:1.45;color:var(--dark);margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.n-body h3 a:hover{color:var(--main)}
.n-body p{font-size:13.5px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px}
.n-more{margin-top:auto;color:var(--main);font-weight:500;font-size:14px}
.n-more:hover{color:var(--main2)}
.news-all{text-align:center;margin-top:36px}

/* Mission */
.mission{background:linear-gradient(180deg,#fff,var(--main4))}
.mission-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center}
.m-img{position:relative}
.m-img img{border-radius:18px;box-shadow:0 24px 50px rgba(13,43,62,.22);aspect-ratio:4/5;object-fit:cover;width:100%}
.m-img .m-badge{position:absolute;right:-22px;bottom:34px;background:#fff;border-radius:14px;padding:16px 20px;box-shadow:var(--shadow);text-align:center;border-left:4px solid var(--main)}
.m-badge b{display:block;font-size:20px;color:var(--main2);letter-spacing:1px}
.m-badge span{font-size:12px;color:var(--muted)}
.mission h2{font-size:32px;color:var(--dark);margin:6px 0 16px;line-height:1.3}
.m-lead{color:#475866;margin-bottom:14px;text-align:justify}
.m-quote{border-left:3px solid var(--main);background:#fff;padding:14px 18px;border-radius:0 10px 10px 0;font-style:italic;color:var(--main2);margin:18px 0 24px}
.m-pillars{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:24px}
.m-pillar{background:#fff;border-radius:12px;padding:20px;box-shadow:var(--shadow);transition:.3s}
.m-pillar:hover{transform:translateY(-4px)}
.m-pillar i{font-size:24px;color:#fff;background:linear-gradient(135deg,var(--main),var(--main2));width:48px;height:48px;border-radius:12px;display:grid;place-items:center;margin-bottom:12px}
.m-pillar h3{font-size:16px;color:var(--dark);margin-bottom:6px;text-transform:uppercase}
.m-pillar p{font-size:14px;color:var(--muted)}
.m-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:50px}
.m-strip div{display:flex;align-items:center;gap:12px;background:#fff;border-radius:12px;padding:16px;box-shadow:0 2px 10px rgba(0,0,0,.05);font-weight:500;color:var(--dark);font-size:14.5px;line-height:1.4}
.m-strip i{flex:none;color:var(--main);font-size:24px}

/* Certificates */
.certs{background:#fff}
.cert-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:22px}
.cert{cursor:zoom-in;text-align:center}
.cert-frame{background:linear-gradient(145deg,#f7fbfd,#e7f3f9);border:1px solid #dcebf3;border-radius:12px;padding:14px;aspect-ratio:3/4;display:grid;place-items:center;transition:.3s;position:relative;overflow:hidden}
.cert-frame img{max-height:100%;object-fit:contain;box-shadow:0 6px 16px rgba(0,0,0,.15);transition:.4s}
.cert-frame::after{content:"\f00e";font-family:"Font Awesome 5 Free";font-weight:900;position:absolute;inset:0;display:grid;place-items:center;background:rgba(13,43,62,.45);color:#fff;font-size:26px;opacity:0;transition:.3s}
.cert:hover .cert-frame{border-color:var(--main);box-shadow:var(--shadow)}
.cert:hover .cert-frame::after{opacity:1}
.cert:hover img{transform:scale(1.04)}
.cert h3{font-size:14.5px;color:var(--dark);margin-top:12px;font-weight:500;line-height:1.4}
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.85);display:none;align-items:center;justify-content:center;z-index:120;padding:20px}
.lightbox.open{display:flex}
.lightbox img{max-height:90vh;max-width:92vw;border-radius:6px;box-shadow:0 10px 40px rgba(0,0,0,.5)}
.lightbox button{position:absolute;background:rgba(255,255,255,.15);color:#fff;border:0;width:46px;height:46px;border-radius:50%;font-size:18px;cursor:pointer}
.lightbox button:hover{background:var(--main)}
.lb-close{top:18px;right:18px}.lb-prev{left:18px}.lb-next{right:18px}
.lb-cap{position:absolute;bottom:18px;left:0;right:0;text-align:center;color:#fff;font-size:15px}

/* Responsive */
@media(max-width:1024px){
  .products{grid-template-columns:repeat(3,1fr)}
  .f-grid{grid-template-columns:1fr 1fr 1fr}
  .f-about{grid-column:1/-1}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .cert-grid{grid-template-columns:repeat(3,1fr)}
  .m-strip{grid-template-columns:repeat(2,1fr)}
  .health-grid{grid-template-columns:1fr 1fr}
  .doctor{grid-column:1/-1;order:-1;max-width:420px;margin:0 auto 10px}
  .hotline div{display:none}
}
@media(max-width:860px){
  .menu-toggle{display:block}
  nav{position:fixed;top:0;left:0;bottom:0;width:280px;background:#fff;transform:translateX(-100%);transition:.3s;z-index:70;padding:80px 24px;box-shadow:4px 0 20px rgba(0,0,0,.15)}
  nav.open{transform:none}
  nav{overflow-y:auto}
  nav ul{flex-direction:column;gap:0}
  .menu>li>a{padding:12px 0;display:flex;justify-content:space-between;border-bottom:1px solid #eef2f5}
  nav a::after{display:none}
  .sub-menu,.sub-menu .sub-menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding:0 0 0 12px;display:none;min-width:0}
  .has-sub.open>.sub-menu{display:block}
  .has-sub.open>a>i{transform:rotate(180deg)}
  .policy{margin-top:16px}
  .dots{bottom:14px}
  .policy-grid{grid-template-columns:1fr 1fr}
  .policy-item:nth-child(3){border-left:0}
  .policy-item:nth-child(n+3){border-top:1px solid #eef2f5}
  .feature-grid,.mission-grid{grid-template-columns:1fr}
  .m-img{max-width:440px;margin:0 auto}
  .m-img .m-badge{right:10px}
  .products{grid-template-columns:repeat(2,1fr);gap:14px}
  .modal-box{grid-template-columns:1fr}
  .topbar .msg{display:none}
}
@media(max-width:520px){
  section{padding:50px 0}
  .sec-head h2,.feature h2{font-size:24px}
  .policy-grid{grid-template-columns:1fr}
  .policy-item+.policy-item{border-left:0;border-top:1px solid #eef2f5}
  .feat-list,.m-pillars,.m-strip{grid-template-columns:1fr}
  .cert-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .mission h2{font-size:24px}
  .f-grid,.news-grid,.health-grid{grid-template-columns:1fr}
  .h-col{gap:26px}
  .h-col.left .h-item{flex-direction:row}
  .pulse-title{font-size:22px;gap:6px}.pulse-title svg,.news .sec-head h2 svg{width:44px}
  .science p{font-size:15px}
  .slider-btn{display:none}
  .p-name{font-size:14px;min-height:40px}
  .p-feat{display:none}
  .p-foot{flex-direction:column;align-items:flex-start}
  .cta input{min-width:0;width:100%}
}

/* ===== Header nâng cấp ===== */
.topbar{background:linear-gradient(90deg,#0a2230 0%,#0d3a52 60%,#11577a 100%)}
.tb-left,.tb-right{display:flex;align-items:center;gap:14px}
.tb-msg{display:inline-flex;align-items:center;gap:7px;opacity:.92}
.tb-msg i{color:var(--main3)}
a.tb-msg:hover{color:#fff;opacity:1}
.tb-sep{width:1px;height:14px;background:rgba(255,255,255,.2)}
.topbar .social{gap:6px}
.topbar .social a{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-size:12px;transition:.2s}
.topbar .social a:hover{background:var(--main);color:#fff}
header{transition:box-shadow .3s}
header .container{transition:height .3s}
header.scrolled{box-shadow:0 6px 24px rgba(13,43,62,.12)}
header.scrolled .container{height:64px}
.logo img{transition:height .3s}
header.scrolled .logo img{height:38px}
footer .logo img{height:54px}
nav ul.menu{gap:4px}
.menu>li{padding:14px 0}
.menu>li>a{padding:9px 16px;border-radius:999px;font-weight:500;color:#24323d;transition:.25s}
.menu>li>a::after{display:none}
.menu>li>a:hover,.menu>li:hover>a{background:var(--main4);color:var(--main2)}
.menu>li>a.active{background:linear-gradient(135deg,var(--main),var(--main2));color:#fff;box-shadow:0 4px 12px rgba(37,170,225,.35)}
.menu .has-sub>a i{transition:transform .25s}
.menu>li.has-sub:hover>a i{transform:rotate(180deg)}
.sub-menu{border-top:0;border-radius:12px;padding:10px;top:calc(100% - 4px)}
.sub-menu::before{content:"";position:absolute;top:-6px;left:28px;width:12px;height:12px;background:#fff;transform:rotate(45deg);border-radius:2px}
.sub-menu .sub-menu::before{display:none}
.sub-menu li a{border-radius:8px;padding:9px 14px}
.sub-menu li a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--main3);margin-right:10px;flex:none;transition:.2s}
.sub-menu li a:hover::before{background:var(--main)}
.sub-menu li a{justify-content:flex-start}
.sub-menu li a i{margin-left:auto}
.sub-menu li a:hover{padding-left:18px}
.header-actions{gap:12px}
.search-btn{width:44px;height:44px;border-radius:50%;border:1.5px solid #dbe9f1;background:#fff;color:var(--dark);cursor:pointer;font-size:16px;transition:.25s}
.search-btn:hover,.search-btn.open{background:var(--main);border-color:var(--main);color:#fff}
.hotline-pill{display:flex;align-items:center;gap:10px;background:linear-gradient(135deg,var(--main),var(--main2));color:#fff;border-radius:999px;padding:5px 20px 5px 5px;box-shadow:0 6px 18px rgba(27,142,197,.35);transition:.25s}
.hotline-pill:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(27,142,197,.45)}
.hotline-pill .ring{width:38px;height:38px;border-radius:50%;background:#fff;color:var(--main2);display:grid;place-items:center;position:relative}
.hotline-pill .ring::after{content:"";position:absolute;inset:-4px;border-radius:50%;border:2px solid rgba(255,255,255,.7);animation:ringPulse 1.8s infinite}
.hotline-pill .ring i{animation:shake 2.4s infinite}
@keyframes ringPulse{0%{transform:scale(.9);opacity:1}100%{transform:scale(1.35);opacity:0}}
@keyframes shake{0%,50%,100%{transform:rotate(0)}5%,15%,25%{transform:rotate(-15deg)}10%,20%{transform:rotate(15deg)}}
.hl-text small{display:block;font-size:11px;opacity:.9;line-height:1.1}
.hl-text b{font-size:17px;letter-spacing:.5px;line-height:1.2}
.search-panel{position:absolute;left:0;right:0;top:100%;background:#fff;box-shadow:0 14px 30px rgba(13,43,62,.12);border-top:1px solid #eef3f6;padding:22px 0;opacity:0;visibility:hidden;transform:translateY(-8px);transition:.25s}
.search-panel.open{opacity:1;visibility:visible;transform:none;transition:opacity .25s,transform .25s,visibility 0s}
.search-panel .container{display:block;height:auto}
.search-form{display:flex;align-items:center;gap:10px;border:2px solid var(--main);border-radius:999px;padding:5px 5px 5px 20px;max-width:760px;margin:0 auto}
.search-form>i{color:var(--main)}
.search-form input{flex:1;border:0;outline:0;font-family:inherit;font-size:15px;padding:8px 4px;min-width:0}
.search-form .btn{padding:10px 24px}
.search-suggest{list-style:none;max-width:760px;margin:10px auto 0}
.search-suggest:empty{display:none}
.search-suggest a{display:flex;justify-content:space-between;gap:10px;padding:9px 16px;border-radius:8px;font-size:14.5px}
.search-suggest a:hover{background:var(--main4);color:var(--main2)}
.search-suggest em{font-style:normal;color:#e53935;font-weight:500;white-space:nowrap}
.search-suggest mark{background:none;color:var(--main2);font-weight:700}
.search-hot{max-width:760px;margin:14px auto 0;display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13.5px;color:var(--muted)}
.search-hot a{background:var(--bg2);border:1px solid #e3edf3;padding:4px 14px;border-radius:999px;color:var(--text);transition:.2s}
.search-hot a:hover{background:var(--main);border-color:var(--main);color:#fff}
@media(max-width:1180px){.hl-text{display:none}.hotline-pill{padding:5px}.menu>li>a{padding:9px 12px}}
@media(max-width:860px){
  .menu>li{padding:0}
  .menu>li>a,.menu>li>a.active{border-radius:0;background:none;box-shadow:none;color:var(--text);padding:12px 0}
  .sub-menu::before{display:none}
  .hide-sm{display:none!important}
  header .container{height:64px}
  .logo img{height:38px}
  .search-btn{width:40px;height:40px}
}
@media(max-width:520px){.ceo-exp{right:8px}.topbar .container{justify-content:center}.topbar .social{display:none}.search-form .btn{padding:10px 14px}}

/* Lớp nền mờ khi mở menu / bộ lọc trên điện thoại */
.backdrop{position:fixed;inset:0;background:rgba(10,34,48,.5);z-index:66;opacity:0;visibility:hidden;transition:.3s}
.backdrop.show{opacity:1;visibility:visible}
.backdrop.high{z-index:89}
.nav-close{display:none}
@media(max-width:860px){.nav-close{display:grid;place-items:center;position:absolute;top:16px;right:16px;width:38px;height:38px;border-radius:50%;border:0;background:var(--main4);color:var(--main2);font-size:16px;cursor:pointer}nav{z-index:70}}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Thanh chính sách – dạng lưới 2x2 gọn trên điện thoại */
@media(max-width:520px){
  .policy{margin-top:-18px}
  .health{padding-top:36px}
  .policy-grid{grid-template-columns:1fr 1fr;border-radius:14px}
  .policy-item{flex-direction:column;text-align:center;gap:6px;padding:14px 8px}
  .policy-item+.policy-item{border-top:0;border-left:0}
  .policy-item:nth-child(even){border-left:1px solid #eef2f5}
  .policy-item:nth-child(n+3){border-top:1px solid #eef2f5}
  .policy-item i{font-size:20px;width:42px;height:42px;border-radius:50%;background:var(--main4);display:grid;place-items:center}
  .policy-item b{font-size:13.5px;line-height:1.3}
  .policy-item span{font-size:12px;line-height:1.35;display:block}
}


/* ===================== TRANG CON (danh mục, chi tiết, tin tức) ===================== */
/* ===== Trang con ===== */
.page-hero{background:linear-gradient(135deg,var(--dark),#13506f);color:#fff;padding:38px 0 34px;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;background:rgba(37,170,225,.18)}
.page-hero h1{font-size:30px;margin:6px 0 6px}
.page-hero p{color:#c7dbe6;max-width:720px}
.crumb{font-size:13px;color:#a9c6d6;display:flex;gap:8px;flex-wrap:wrap}
.crumb a:hover{color:#fff}
.crumb i{font-size:9px;align-self:center}
.crumb.light{color:var(--muted);padding:16px 0}
.crumb.light a:hover{color:var(--main)}

.shop{padding:40px 0 70px}
.shop-grid{display:grid;grid-template-columns:270px 1fr;gap:30px;align-items:start}
.sidebar{position:sticky;top:92px;display:flex;flex-direction:column;gap:18px}
.widget{background:#fff;border:1px solid #e6eef3;border-radius:12px;padding:18px}
.widget h3{font-size:15px;text-transform:uppercase;letter-spacing:.5px;color:var(--dark);margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid var(--main4);position:relative}
.widget h3::after{content:"";position:absolute;left:0;bottom:-2px;width:40px;height:2px;background:var(--main)}
.cat-list{list-style:none}
.cat-list a{display:flex;justify-content:space-between;align-items:center;padding:8px 10px;border-radius:8px;font-size:14.5px;transition:.2s}
.cat-list a:hover,.cat-list a.active{background:var(--main4);color:var(--main2);font-weight:500}
.cat-list em{font-style:normal;font-size:12px;background:#eef4f8;color:var(--muted);padding:1px 8px;border-radius:999px}
.cat-list a.active em{background:var(--main);color:#fff}
.chk{display:flex;align-items:center;gap:10px;padding:6px 0;font-size:14.5px;cursor:pointer}
.chk input{accent-color:var(--main);width:16px;height:16px}
.w-help{background:linear-gradient(135deg,var(--main2),var(--main));color:#fff;border:0;text-align:center}
.w-help i{font-size:34px;margin-bottom:8px}
.w-help b{display:block;font-size:22px;margin:4px 0 12px}
.w-help .btn{background:#fff;color:var(--main2);padding:9px 20px;font-size:14px}
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;background:#fff;border:1px solid #e6eef3;border-radius:12px;padding:12px 16px;margin-bottom:22px}
.toolbar .count{font-size:14px;color:var(--muted)}
.toolbar .count b{color:var(--dark)}
.tb-right{display:flex;gap:10px;align-items:center}
.toolbar select{padding:8px 12px;border:1px solid #dbe6ee;border-radius:8px;font-family:inherit;font-size:14px;background:#fff}
.view-btn{width:38px;height:38px;border:1px solid #dbe6ee;border-radius:8px;background:#fff;cursor:pointer;color:var(--muted)}
.view-btn.active{background:var(--main);border-color:var(--main);color:#fff}
.filter-open{display:none}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:-8px 0 18px}
.chips span{background:var(--main4);color:var(--main2);font-size:13px;padding:4px 12px;border-radius:999px}
.shop .products{grid-template-columns:repeat(3,1fr)}
.shop .products.list{grid-template-columns:1fr}
.shop .products.list .p-card{flex-direction:row}
.shop .products.list .p-img{width:240px;flex:none}
.shop .products.list .p-name{min-height:0;font-size:18px}
.empty{grid-column:1/-1;text-align:center;padding:50px;color:var(--muted)}
.pager{display:flex;justify-content:center;gap:8px;margin-top:36px}
.pager a{min-width:40px;height:40px;display:grid;place-items:center;border:1px solid #dbe6ee;border-radius:8px;font-weight:500;background:#fff;padding:0 10px}
.pager a.active,.pager a:hover{background:var(--main);border-color:var(--main);color:#fff}
.cat-seo{background:var(--bg2);padding:50px 0}
.seo-box{background:#fff;border-radius:14px;padding:30px;box-shadow:var(--shadow);max-height:260px;overflow:hidden;position:relative;transition:max-height .4s}
.seo-box.open{max-height:3000px}
.seo-box:not(.open)::after{content:"";position:absolute;left:0;right:0;bottom:0;height:90px;background:linear-gradient(transparent,#fff)}
.seo-box h2{font-size:22px;color:var(--dark);margin-bottom:12px}
.seo-box h3{font-size:17px;color:var(--main2);margin:18px 0 8px}
.seo-box p,.seo-box li{color:#4a5a66;margin-bottom:8px}
.seo-box ul{padding-left:20px}
.seo-more{display:block;margin:16px auto 0}
@media(max-width:1024px){.shop-grid{grid-template-columns:1fr}.sidebar{position:fixed;top:0;left:0;bottom:0;width:300px;background:#fff;z-index:90;padding:20px;overflow-y:auto;transform:translateX(-100%);transition:.3s;box-shadow:4px 0 20px rgba(0,0,0,.2)}.sidebar.open{transform:none}.filter-open{display:inline-flex}.sb-close{display:block!important}}
@media(max-width:860px){.shop .products{grid-template-columns:repeat(2,1fr)}.shop .products.list .p-img{width:150px}}
@media(max-width:520px){.page-hero h1{font-size:24px}.shop .products.list .p-card{flex-direction:column}.shop .products.list .p-img{width:100%}.tb-right .view-btn{display:none}}


/* ===================== CHI TIẾT SẢN PHẨM ===================== */
/* ===== Trang con ===== */

.pd{padding:10px 0 50px}
.pd-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.gallery{position:sticky;top:92px}
.g-main{position:relative;border-radius:16px;overflow:hidden;background:var(--bg2);aspect-ratio:510/600;cursor:zoom-in}
.g-main img{width:100%;height:100%;object-fit:cover;transition:transform .2s}
.g-main .badge{z-index:2}
.g-main .g-zoom{position:absolute;right:14px;bottom:14px;background:#fff;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;box-shadow:0 2px 8px rgba(0,0,0,.15);color:var(--dark)}
.g-thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:12px}
.g-thumbs button{border:2px solid transparent;border-radius:10px;overflow:hidden;padding:0;cursor:pointer;background:var(--bg2);aspect-ratio:1}
.g-thumbs button.active{border-color:var(--main)}
.g-thumbs img{width:100%;height:100%;object-fit:cover}
.pd-info .p-cat{font-size:13px}
.pd-info h1{font-size:28px;line-height:1.3;color:var(--dark);margin:6px 0 10px}
.pd-meta{display:flex;gap:18px;flex-wrap:wrap;font-size:13.5px;color:var(--muted);margin-bottom:16px}
.pd-meta b{color:var(--dark)}
.pd-meta .ok{color:#2e9e5b}
.pd-price{background:linear-gradient(90deg,#fff4f3,#fff);border:1px solid #fde0dc;border-radius:12px;padding:14px 18px;margin-bottom:18px;display:flex;align-items:baseline;gap:14px;flex-wrap:wrap}
.pd-price b{font-size:28px;color:#e53935}
.pd-price s{color:var(--muted)}
.pd-price small{color:var(--muted);width:100%}
.spec-hl{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:20px}
.spec-hl div{background:var(--main4);border-radius:10px;padding:12px 10px;text-align:center}
.spec-hl b{display:block;color:var(--main2);font-size:16px}
.spec-hl span{font-size:12.5px;color:#4a5a66}
.opt{margin-bottom:18px}
.opt>b{display:block;font-size:14px;margin-bottom:8px}
.swatches{display:flex;gap:10px;flex-wrap:wrap}
.swatches button{border:1.5px solid #dbe6ee;background:#fff;border-radius:8px;padding:8px 14px;cursor:pointer;font-family:inherit;font-size:14px;display:flex;gap:8px;align-items:center}
.swatches button.active{border-color:var(--main);color:var(--main2);box-shadow:0 0 0 3px var(--main4)}
.swatches i.dot{width:14px;height:14px;border-radius:50%;display:inline-block;border:1px solid #ccc}
.qty{display:inline-flex;border:1px solid #dbe6ee;border-radius:8px;overflow:hidden}
.qty button{width:38px;border:0;background:#f4f8fb;cursor:pointer;font-size:16px}
.qty input{width:50px;text-align:center;border:0;font-family:inherit;font-size:15px}
.pd-cta{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:20px 0}
.pd-cta .btn{justify-content:center;flex-direction:column;gap:2px;padding:12px;border-radius:12px;line-height:1.3}
.pd-cta .btn small{font-weight:400;font-size:12px;opacity:.9}
.btn-red{background:#e53935;color:#fff}.btn-red:hover{background:#c62828}
.btn-zalo{background:#0068ff;color:#fff;grid-column:1/-1;flex-direction:row!important}
.pd-policy{border:1px dashed #cfe3ee;border-radius:12px;padding:14px 16px;display:grid;grid-template-columns:1fr 1fr;gap:10px;font-size:14px}
.pd-policy i{color:var(--main);width:22px}
.pd-proof{display:flex;gap:12px;align-items:center;margin-top:16px;background:var(--dark);color:#fff;border-radius:12px;padding:14px 16px;font-size:14px}
.pd-proof i{font-size:26px;color:var(--main3)}
.pd-proof a{color:var(--main3);text-decoration:underline;white-space:nowrap}
/* Tabs */
.pd-tabs{background:var(--bg2);padding:50px 0}
.tab-nav{display:flex;gap:6px;border-bottom:2px solid #dbe6ee;overflow-x:auto;position:sticky;top:76px;background:var(--bg2);z-index:5}
.tab-nav button{padding:14px 20px;border:0;background:none;font-family:inherit;font-size:15px;font-weight:500;color:var(--muted);cursor:pointer;white-space:nowrap;border-bottom:3px solid transparent;margin-bottom:-2px}
.tab-nav button.active{color:var(--main2);border-color:var(--main)}
.tab-pane{display:none;background:#fff;border-radius:0 0 14px 14px;padding:30px;box-shadow:var(--shadow)}
.tab-pane.active{display:block}
.tab-pane h2{font-size:22px;color:var(--dark);margin-bottom:12px}
.tab-pane h3{font-size:18px;color:var(--main2);margin:20px 0 8px}
.tab-pane p{color:#4a5a66;margin-bottom:10px}
.tab-pane img{border-radius:12px;margin:14px auto}
.desc-2col{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:center}
.spec-table{width:100%;border-collapse:collapse;font-size:14.5px}
.spec-table th,.spec-table td{padding:12px 14px;border-bottom:1px solid #eef2f5;text-align:left}
.spec-table th{width:38%;color:var(--muted);font-weight:500;background:#fafcfd}
.spec-table tr.grp td{background:var(--main4);color:var(--main2);font-weight:700;text-transform:uppercase;font-size:13px}
.todo{color:#e08a00;font-style:italic}
.faq details{border:1px solid #e6eef3;border-radius:10px;margin-bottom:10px;overflow:hidden}
.faq summary{padding:14px 18px;cursor:pointer;font-weight:500;list-style:none;display:flex;justify-content:space-between;gap:10px}
.faq summary::after{content:"+";font-size:20px;color:var(--main)}
.faq details[open] summary::after{content:"–"}
.faq details[open] summary{background:var(--main4);color:var(--main2)}
.faq details p{padding:14px 18px;margin:0}
.review-empty{text-align:center;padding:20px}
.review-empty i{font-size:40px;color:var(--main3)}
.rv-form{display:grid;grid-template-columns:1fr 1fr;gap:12px;max-width:640px;margin:20px auto 0}
.rv-form input,.rv-form textarea{padding:12px 14px;border:1px solid #dbe6ee;border-radius:8px;font-family:inherit;font-size:14px}
.rv-form textarea{grid-column:1/-1;min-height:100px}
.rv-form .btn{grid-column:1/-1;justify-self:center}
.stars-in{grid-column:1/-1;text-align:center;font-size:24px;color:#ddd;cursor:pointer}
.stars-in i.on{color:#f5a623}
.related{padding:60px 0}
.related .products{grid-template-columns:repeat(4,1fr)}
/* Sticky mobile */
.m-buy{display:none;position:fixed;left:0;right:0;bottom:0;background:#fff;box-shadow:0 -4px 16px rgba(0,0,0,.1);z-index:65;padding:10px 12px;gap:10px;align-items:center}
.m-buy .btn{flex:1;justify-content:center;padding:11px}
@media(max-width:1024px){.related .products{grid-template-columns:repeat(3,1fr)}}
@media(max-width:860px){.pd-grid,.desc-2col{grid-template-columns:1fr}.gallery{position:static}.related .products{grid-template-columns:repeat(2,1fr)}.m-buy{display:flex}.float .call{display:none}.float{bottom:80px}footer{padding-bottom:64px}.tab-nav{top:76px}}
@media(max-width:520px){.pd-info h1{font-size:22px}.spec-hl{grid-template-columns:1fr 1fr}.pd-policy,.rv-form{grid-template-columns:1fr}.tab-pane{padding:20px}.g-thumbs{grid-template-columns:repeat(5,1fr);gap:6px}}

.pd-sub{color:#4a5a66;margin:-4px 0 12px;font-size:15px}
.hdsd{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.hdsd img{margin:0;cursor:zoom-in;border:1px solid #e6eef3}
.feat-cols{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:10px}
.feat-cols ul{list-style:none}
.feat-cols li{padding:8px 0 8px 30px;position:relative;border-bottom:1px dashed #e6eef3;color:#334}
.feat-cols li::before{content:"\f00c";font-family:"Font Awesome 5 Free";font-weight:900;position:absolute;left:0;top:8px;width:20px;height:20px;border-radius:50%;background:var(--main4);color:var(--main);font-size:10px;display:grid;place-items:center}
.install{background:var(--bg2);border-radius:12px;padding:18px 22px;margin-top:20px}
.install li{margin:0 0 6px 18px;color:#4a5a66}
@media(max-width:860px){.feat-cols,.hdsd{grid-template-columns:1fr}}


/* ===================== TIN TỨC (danh sách) ===================== */
<style>/* ===== Trang con ===== */
.page-hero{background:linear-gradient(135deg,var(--dark),#13506f);color:#fff;padding:38px 0 34px;position:relative;overflow:hidden}
.b-card{background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 2px 12px rgba(13,43,62,.06);display:flex;flex-direction:column;transition:.3s}
.b-card:hover{transform:translateY(-5px);box-shadow:0 14px 32px rgba(13,43,62,.13)}
.b-thumb{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:#dfeef6}
.b-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.b-card:hover .b-thumb img,.feat-main:hover .b-thumb img{transform:scale(1.06)}
.b-tag{position:absolute;left:12px;top:12px;background:var(--main);color:#fff;font-size:11.5px;font-weight:500;padding:4px 10px;border-radius:999px;text-transform:uppercase;letter-spacing:.4px}
.b-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.b-meta{font-size:12.5px;color:var(--muted);display:flex;gap:14px;margin-bottom:8px}
.b-meta i{color:var(--main);margin-right:3px}
.b-body h3{font-size:17px;line-height:1.45;color:var(--dark);margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.b-body h3 a:hover{color:var(--main)}
.b-body p{font-size:14px;color:#5b6b77;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px}
.b-more{margin-top:auto;font-weight:500;color:var(--main2);font-size:14px}
.b-more i{transition:.2s}
.b-more:hover i{transform:translateX(4px)}
.w-search{display:flex;border:1.5px solid #dbe6ee;border-radius:999px;overflow:hidden}
.w-search input{flex:1;border:0;padding:10px 16px;font-family:inherit;font-size:14px;outline:0;min-width:0}
.w-search button{border:0;background:var(--main);color:#fff;width:46px;cursor:pointer}
.w-list{list-style:none}
.w-list li{display:flex;gap:12px;padding:10px 0;border-bottom:1px dashed #e6eef3}
.w-list li:last-child{border:0}
.w-list img{width:76px;height:56px;object-fit:cover;border-radius:8px;flex:none}
.w-list a{font-size:14px;font-weight:500;line-height:1.4;color:var(--dark);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.w-list a:hover{color:var(--main)}
.w-list time{font-size:12px;color:var(--muted)}
.w-tags{display:flex;flex-wrap:wrap;gap:8px}
.w-tags a{background:var(--bg2);border:1px solid #e3edf3;padding:5px 12px;border-radius:999px;font-size:13px;transition:.2s}
.w-tags a:hover{background:var(--main);color:#fff;border-color:var(--main)}
.w-product{text-align:center;background:linear-gradient(180deg,var(--main4),#fff)}
.w-product img{width:150px;margin:0 auto 10px;border-radius:10px}
.w-product b{display:block;color:var(--dark);margin-bottom:4px;line-height:1.4}
.w-product .price{color:#e53935;font-weight:700;font-size:18px;display:block;margin-bottom:12px}
.w-hotline{background:linear-gradient(135deg,var(--main2),var(--main));color:#fff;border:0;text-align:center}
.w-hotline i{font-size:30px}
.w-hotline b{display:block;font-size:24px;margin:6px 0 12px}
.w-hotline .btn{background:#fff;color:var(--main2);padding:9px 20px;font-size:14px}
.blog-hero{background:linear-gradient(135deg,#0a2230,#13506f 70%,#1b8ec5);color:#fff;padding:40px 0 70px;position:relative;overflow:hidden}
.blog-hero::before{content:"";position:absolute;right:-80px;bottom:-120px;width:380px;height:380px;border-radius:50%;background:rgba(125,211,240,.12)}
.blog-hero h1{font-size:34px;margin:8px 0 8px}
.blog-hero p{color:#c7dbe6;max-width:760px}
.cat-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.cat-tabs a{display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);font-size:14px;font-weight:500;transition:.2s}
.cat-tabs a em{font-style:normal;font-size:12px;background:rgba(255,255,255,.18);padding:0 8px;border-radius:999px}
.cat-tabs a:hover,.cat-tabs a.active{background:#fff;color:var(--main2)}
.cat-tabs a.active em{background:var(--main4)}
.featured{margin-top:-46px;position:relative;z-index:2}
.feat-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:22px}
.feat-main{position:relative;border-radius:16px;overflow:hidden;min-height:420px;display:flex;align-items:flex-end;color:#fff;box-shadow:0 18px 40px rgba(13,43,62,.2)}
.feat-main .b-thumb{position:absolute;inset:0;aspect-ratio:auto}
.feat-main .b-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0) 30%,rgba(10,34,48,.92))}
.feat-main .b-body{position:relative;z-index:2;padding:28px;flex:none;width:100%;min-width:0}
.feat-main .b-meta{color:#d6e6ee}
.feat-main .b-meta i{color:var(--main3)}
.feat-main h3{font-size:26px;color:#fff;-webkit-line-clamp:3}
.feat-main h3 a:hover{color:var(--main3)}
.feat-main p{color:#d6e6ee;-webkit-line-clamp:2}
.feat-main .b-more{color:var(--main3)}
.feat-side{display:grid;gap:22px}
.feat-side .b-card{flex-direction:row}
.feat-side .b-thumb{width:44%;aspect-ratio:auto;flex:none}
.feat-side .b-body h3{font-size:16px}
.feat-side .b-body p{-webkit-line-clamp:2}
.blog-main{padding:50px 0 70px}
.blog-grid{display:grid;grid-template-columns:1fr 320px;gap:32px;align-items:start}
.sec-line{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}
.sec-line h2{font-size:22px;color:var(--dark);display:flex;align-items:center;gap:10px}
.sec-line h2::before{content:"";width:5px;height:24px;border-radius:3px;background:var(--main)}
.sec-line span{font-size:14px;color:var(--muted)}
.post-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.aside{position:sticky;top:90px;display:flex;flex-direction:column;gap:20px}
.hub{background:var(--bg2);padding:56px 0}
.hub-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}
.hub h2{font-size:24px;color:var(--dark);margin-bottom:12px}
.hub p{color:#4a5a66;margin-bottom:10px}
.faq summary::-webkit-details-marker{display:none}
@media(max-width:1024px){.blog-grid{grid-template-columns:1fr}.aside{position:static;display:grid;grid-template-columns:1fr 1fr}.feat-grid{grid-template-columns:1fr}}
@media(max-width:860px){.hub-grid{grid-template-columns:1fr}}
@media(max-width:620px){.blog-hero{padding:28px 0 60px}.blog-hero h1{font-size:25px}.cat-tabs{flex-wrap:nowrap;overflow-x:auto;margin-right:-16px;padding-bottom:4px}.cat-tabs a{white-space:nowrap}.feat-main{min-height:340px}.feat-main h3{font-size:20px}.feat-main .b-body{padding:20px}.feat-side .b-card{flex-direction:column}.feat-side .b-thumb{width:100%;aspect-ratio:16/9}.post-grid,.aside{grid-template-columns:1fr}}


/* ===================== CHI TIẾT BÀI VIẾT ===================== */
<style>/* ===== Trang con ===== */
.page-hero{background:linear-gradient(135deg,var(--dark),#13506f);color:#fff;padding:38px 0 34px;position:relative;overflow:hidden}
.b-card{background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 2px 12px rgba(13,43,62,.06);display:flex;flex-direction:column;transition:.3s}
.b-card:hover{transform:translateY(-5px);box-shadow:0 14px 32px rgba(13,43,62,.13)}
.b-thumb{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:#dfeef6}
.b-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.b-card:hover .b-thumb img,.feat-main:hover .b-thumb img{transform:scale(1.06)}
.b-tag{position:absolute;left:12px;top:12px;background:var(--main);color:#fff;font-size:11.5px;font-weight:500;padding:4px 10px;border-radius:999px;text-transform:uppercase;letter-spacing:.4px}
.b-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.b-meta{font-size:12.5px;color:var(--muted);display:flex;gap:14px;margin-bottom:8px}
.b-meta i{color:var(--main);margin-right:3px}
.b-body h3{font-size:17px;line-height:1.45;color:var(--dark);margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.b-body h3 a:hover{color:var(--main)}
.b-body p{font-size:14px;color:#5b6b77;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px}
.b-more{margin-top:auto;font-weight:500;color:var(--main2);font-size:14px}
.b-more i{transition:.2s}
.b-more:hover i{transform:translateX(4px)}
.w-search{display:flex;border:1.5px solid #dbe6ee;border-radius:999px;overflow:hidden}
.w-search input{flex:1;border:0;padding:10px 16px;font-family:inherit;font-size:14px;outline:0;min-width:0}
.w-search button{border:0;background:var(--main);color:#fff;width:46px;cursor:pointer}
.w-list{list-style:none}
.w-list li{display:flex;gap:12px;padding:10px 0;border-bottom:1px dashed #e6eef3}
.w-list li:last-child{border:0}
.w-list img{width:76px;height:56px;object-fit:cover;border-radius:8px;flex:none}
.w-list a{font-size:14px;font-weight:500;line-height:1.4;color:var(--dark);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.w-list a:hover{color:var(--main)}
.w-list time{font-size:12px;color:var(--muted)}
.w-tags{display:flex;flex-wrap:wrap;gap:8px}
.w-tags a{background:var(--bg2);border:1px solid #e3edf3;padding:5px 12px;border-radius:999px;font-size:13px;transition:.2s}
.w-tags a:hover{background:var(--main);color:#fff;border-color:var(--main)}
.w-product{text-align:center;background:linear-gradient(180deg,var(--main4),#fff)}
.w-product img{width:150px;margin:0 auto 10px;border-radius:10px}
.w-product b{display:block;color:var(--dark);margin-bottom:4px;line-height:1.4}
.w-product .price{color:#e53935;font-weight:700;font-size:18px;display:block;margin-bottom:12px}
.w-hotline{background:linear-gradient(135deg,var(--main2),var(--main));color:#fff;border:0;text-align:center}
.w-hotline i{font-size:30px}
.w-hotline b{display:block;font-size:24px;margin:6px 0 12px}
.w-hotline .btn{background:#fff;color:var(--main2);padding:9px 20px;font-size:14px}
.read-bar{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--main3),var(--main));z-index:100;transition:width .1s}
.art-head{padding:0 0 22px}
.art-head .crumb.light{padding:0 0 14px}
.art-cat{display:inline-block;background:var(--main4);color:var(--main2);font-size:12.5px;font-weight:700;padding:5px 12px;border-radius:999px;text-transform:uppercase;letter-spacing:.5px;margin-bottom:12px}
.art-head h1{font-size:36px;line-height:1.3;color:var(--dark);margin-bottom:14px}
.art-lead{font-size:18px;color:#4a5a66;line-height:1.7;margin-bottom:20px}
.art-meta{display:flex;flex-wrap:wrap;align-items:center;gap:18px;font-size:14px;color:var(--muted)}
.art-meta .au{display:flex;align-items:center;gap:10px;color:var(--dark);font-weight:500}
.art-meta .au img{width:40px;height:40px;border-radius:50%;object-fit:cover;border:2px solid #fff;box-shadow:0 2px 8px rgba(0,0,0,.12)}
.art-meta i{color:var(--main);margin-right:4px}
.art-meta .reviewed{background:#e8f7ee;color:#2e9e5b;padding:4px 10px;border-radius:999px;font-weight:500}
.art-meta .reviewed i{color:#2e9e5b}
.art-cover{margin:0 0 28px}
.art-cover img{border-radius:18px;width:100%;aspect-ratio:16/9;object-fit:cover;box-shadow:0 18px 40px rgba(13,43,62,.15)}
.art-cover figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px}
.art-wrap{padding:20px 0 60px}
.art-grid{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:44px;align-items:start}
.art-aside{align-self:stretch}
.aside-sticky{position:sticky;top:88px;display:flex;flex-direction:column;gap:18px}
.toc{font-size:14px;padding:18px 18px 16px}
.toc h3{display:flex;align-items:center;gap:8px}
.toc h3 i{color:var(--main)}
.toc ol{max-height:38vh;overflow-y:auto;scrollbar-width:thin}
.toc ol{list-style:none;border-left:2px solid #e3edf3;counter-reset:t}
.toc li a{display:block;padding:7px 0 7px 14px;margin-left:-2px;border-left:2px solid transparent;color:#5b6b77;line-height:1.4;transition:.2s}
.toc li.sub a{padding-left:28px;font-size:13px}
.toc li a:hover{color:var(--main2)}
.toc li a.on{border-color:var(--main);color:var(--main2);font-weight:500}
.share-v{display:flex;align-items:center;gap:8px;margin-top:14px;padding-top:14px;border-top:1px dashed #e3edf3;font-size:13px;color:var(--muted)}
.share-v span{margin-right:auto}
.share-v a,.share-v button{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;color:#fff;border:0;cursor:pointer;font-size:14px}
.s-fb{background:#1877f2}
.s-zl{background:#0068ff;font-weight:700;font-size:11px!important}
.s-cp{background:var(--dark)}
.s-pr{background:#6b7a86}
.toc-m{display:none}
/* Nội dung */
.prose{font-size:17px;line-height:1.85;color:#2b3a45}
.prose>*+*{margin-top:18px}
.prose h2{font-size:26px;line-height:1.35;color:var(--dark);margin-top:40px;padding-top:8px;scroll-margin-top:90px}
.prose h3{font-size:20px;color:var(--main2);margin-top:28px;scroll-margin-top:90px}
.prose ul,.prose ol{padding-left:24px}
.prose li{margin-bottom:8px}
.prose li::marker{color:var(--main)}
.prose a{color:var(--main2);text-decoration:underline;text-underline-offset:3px}
.prose figure img{border-radius:14px;width:100%}
.prose figcaption{font-size:13.5px;color:var(--muted);text-align:center;margin-top:8px}
.prose strong{color:var(--dark)}
.tldr{background:linear-gradient(135deg,#eaf7fd,#f6fbfe);border:1px solid #cfeaf7;border-radius:16px;padding:22px 24px}
.tldr h2{font-size:18px!important;margin:0 0 12px!important;padding:0!important;display:flex;align-items:center;gap:10px;color:var(--main2)!important}
.tldr ul{list-style:none;padding:0}
.tldr li{padding-left:28px;position:relative;font-size:16px;line-height:1.65}
.tldr li::before{content:"\f058";font-family:"Font Awesome 5 Free";font-weight:900;color:var(--main);position:absolute;left:0;top:1px}
.callout{border-radius:14px;padding:18px 20px;display:flex;gap:14px;font-size:16px}
.callout i{font-size:22px;margin-top:3px}
.callout.warn{background:#fff7e8;border:1px solid #ffe0a6}
.callout.warn i{color:#e08a00}
.callout.info{background:var(--main4);border:1px solid #cfeaf7}
.callout.info i{color:var(--main)}
.callout p{margin:0}
.data-table{width:100%;border-collapse:collapse;font-size:15.5px;border-radius:12px;overflow:hidden;box-shadow:0 0 0 1px #e3edf3}
.data-table th{background:var(--dark);color:#fff;text-align:left;padding:12px 14px;font-weight:500}
.data-table td{padding:12px 14px;border-top:1px solid #eef2f5;vertical-align:top}
.data-table tr:nth-child(even) td{background:#f8fbfd}
.table-wrap{overflow-x:auto}
.prod-box{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.prod-box a{display:flex;gap:14px;align-items:center;border:1px solid #e3edf3;border-radius:14px;padding:12px;text-decoration:none!important;transition:.25s;background:#fff}
.prod-box a:hover{border-color:var(--main);box-shadow:var(--shadow)}
.prod-box img{width:72px;height:86px;object-fit:cover;border-radius:8px;flex:none}
.prod-box b{display:block;color:var(--dark);font-size:15px;line-height:1.4}
.prod-box span{color:#e53935;font-weight:700;font-size:15px}
.disclaimer{font-size:14px;color:#6b7a86;background:#f6f8fa;border-radius:12px;padding:14px 18px;border-left:4px solid #c3cfd8}
.art-tags{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:30px;font-size:14px}
.art-tags a{background:var(--bg2);border:1px solid #e3edf3;padding:5px 12px;border-radius:999px;text-decoration:none!important;color:var(--text)!important}
.art-tags a:hover{background:var(--main);color:#fff!important}
.share-h{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:18px 0;border-top:1px solid #eef2f5;border-bottom:1px solid #eef2f5;margin-top:24px;font-weight:500}
.share-h a,.share-h button{display:inline-flex;align-items:center;gap:8px;color:#fff;border:0;border-radius:999px;padding:8px 16px;font-size:14px;cursor:pointer;font-family:inherit}
.author-box{display:grid;grid-template-columns:auto 1fr;gap:18px;background:#fff;border:1px solid #e3edf3;border-radius:16px;padding:22px;margin-top:26px}
.author-box img{width:76px;height:76px;border-radius:50%;object-fit:cover}
.author-box small{color:var(--main);font-weight:700;text-transform:uppercase;font-size:12px;letter-spacing:.5px}
.author-box b{display:block;font-size:18px;color:var(--dark);margin:2px 0 6px}
.author-box p{font-size:14.5px;color:#5b6b77;margin:0}
.author-box.expert{background:linear-gradient(135deg,#f3fbff,#fff)}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px}
.post-nav a{border:1px solid #e3edf3;border-radius:14px;padding:16px 18px;transition:.2s;background:#fff}
.post-nav a:hover{border-color:var(--main)}
.post-nav small{color:var(--muted);font-size:12.5px}
.post-nav b{display:block;color:var(--dark);font-size:15px;line-height:1.4;margin-top:4px}
.post-nav a:last-child{text-align:right}
/* Slider sản phẩm */
.ps{padding:18px;text-align:center;background:linear-gradient(180deg,var(--main4),#fff 60%)}
.ps-view{overflow:hidden;touch-action:pan-y}
.ps-track{display:flex;transition:transform .45s ease}
.ps-slide{min-width:100%;padding:0 4px}
.ps-img{display:block;width:150px;margin:0 auto 10px;border-radius:12px;overflow:hidden;box-shadow:0 6px 16px rgba(13,43,62,.12)}
.ps-img img{width:100%;aspect-ratio:247/296;object-fit:cover}
.ps-name{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-weight:500;color:var(--dark);line-height:1.4;min-height:42px;font-size:15px}
.ps-name:hover{color:var(--main)}
.ps .price{display:block;color:#e53935;font-weight:700;font-size:18px;margin:6px 0 12px}
.ps .btn{padding:9px 22px;font-size:14px}
.ps-ctrl{display:flex;align-items:center;justify-content:space-between;margin-top:14px}
.ps-ctrl button{width:34px;height:34px;border-radius:50%;border:1px solid #dbe6ee;background:#fff;color:var(--dark);cursor:pointer;transition:.2s}
.ps-ctrl button:hover{background:var(--main);border-color:var(--main);color:#fff}
.ps-dots{display:flex;gap:6px}
.ps-dots button{width:8px;height:8px;min-width:0;padding:0;border-radius:999px;border:0;background:#cfdde6}
.ps-dots button.active{width:22px;background:var(--main)}
.ps-dots button:hover{background:var(--main3)}
.related-sec{background:var(--bg2);padding:56px 0}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.faq summary::-webkit-details-marker{display:none}
@media(max-width:1100px){.art-grid{grid-template-columns:minmax(0,1fr) 290px;gap:30px}}
@media(max-width:900px){.art-grid{grid-template-columns:1fr}.toc{display:none}.aside-sticky{position:static}.ps{max-width:420px;margin:0 auto;width:100%}.toc-m{display:block;border:1px solid #cfeaf7;border-radius:14px;background:#fff;margin-bottom:6px}
 .toc-m summary{padding:14px 18px;font-weight:700;cursor:pointer;color:var(--dark);list-style:none;display:flex;justify-content:space-between}
 .toc-m summary::-webkit-details-marker{display:none}.toc-m summary::after{content:"\f078";font-family:"Font Awesome 5 Free";font-weight:900;color:var(--main)}
 .toc-m[open] summary::after{content:"\f077"}
 .toc-m ol{padding:0 18px 14px 36px;font-size:15px}.toc-m li{margin-bottom:6px}.toc-m li.sub{margin-left:14px;font-size:14px;list-style:circle}
 .related-grid{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.art-head h1{font-size:26px}.art-lead{font-size:16px}.prose{font-size:16px}.prose h2{font-size:22px}.prose h3{font-size:18px}.prod-box,.post-nav,.related-grid{grid-template-columns:1fr}.post-nav a:last-child{text-align:left}.author-box{grid-template-columns:1fr;text-align:center}.author-box img{margin:0 auto}.art-cover img{border-radius:12px}}
@media print{.topbar,header,.read-bar,.toc,.art-aside,.share-h,.related-sec,footer,.float,.cta{display:none!important}}

/* h4 cũng được gắn neo cho mục lục trong bài — chừa chỗ cho header dính */
.prose h4{scroll-margin-top:90px}

/* ===================== TRANG ĐƠN ===================== */
.lh-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:4px 0 28px}
.lh-o{display:block;background:#fff;border:1px solid #e6eef3;border-radius:14px;padding:18px 20px;transition:.25s}
a.lh-o:hover{border-color:var(--main);box-shadow:0 10px 24px rgba(37,170,225,.15);transform:translateY(-2px)}
.lh-o i{font-size:20px;color:var(--main);margin-bottom:10px;display:block}
.lh-o small{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}
.lh-o b{display:block;font-size:16px;color:var(--dark);line-height:1.45;font-weight:500}
@media(max-width:620px){.lh-grid{grid-template-columns:1fr}}

/* ===================== BẢNG TRONG NỘI DUNG ===================== */
/* Khung cuộn ngang: bảng nhiều cột không làm vỡ bố cục trên điện thoại */
.bang-cuon{position:relative;overflow-x:auto;-webkit-overflow-scrolling:touch;margin:22px 0;
  border:1px solid #dbe6ee;border-radius:12px;background:#fff}
.bang-cuon::-webkit-scrollbar{height:8px}
.bang-cuon::-webkit-scrollbar-track{background:#eef4f8;border-radius:0 0 12px 12px}
.bang-cuon::-webkit-scrollbar-thumb{background:var(--main3);border-radius:999px}
.bang-cuon::-webkit-scrollbar-thumb:hover{background:var(--main)}

.bang-cuon>table{width:100%;border-collapse:collapse;margin:0;font-size:15px;min-width:680px}
.bang-cuon>table th,.bang-cuon>table td{border:1px solid #dbe6ee;padding:11px 14px;
  text-align:left;vertical-align:top;line-height:1.55}
.bang-cuon>table th{background:var(--main4);color:var(--dark);font-weight:700;
  white-space:nowrap;position:sticky;top:0;z-index:1}
.bang-cuon>table thead th{box-shadow:inset 0 -2px 0 var(--main)}
.bang-cuon>table tr:nth-child(even) td{background:#fafdff}
.bang-cuon>table tr:hover td{background:var(--main4)}
.bang-cuon>table td p:last-child{margin-bottom:0}
.bang-cuon>table img{max-width:160px}

/* Gợi ý "vuốt ngang" chỉ hiện khi bảng thực sự rộng hơn khung */
.bang-cuon.co-the-cuon::after{content:"Vuốt ngang để xem đủ bảng";position:absolute;right:10px;top:8px;
  background:rgba(13,43,62,.78);color:#fff;font-size:12px;padding:3px 10px;border-radius:999px;
  pointer-events:none;animation:bangNhac 5s ease forwards}
@keyframes bangNhac{0%,70%{opacity:1}100%{opacity:0}}

@media(max-width:620px){
  .bang-cuon>table{font-size:14px}
  .bang-cuon>table th,.bang-cuon>table td{padding:9px 11px}
}

/* ===================== HỆ THỐNG ĐẠI LÝ ===================== */
.tabs a{display:inline-flex;align-items:center;gap:6px;padding:9px 18px;border-radius:999px;
  border:1px solid #dbe6ee;background:#fff;font-size:14.5px;font-weight:500;color:var(--text);transition:.2s}
.tabs a:hover{border-color:var(--main);color:var(--main2)}
.tabs a.active{background:var(--main);border-color:var(--main);color:#fff}
.tabs a em{font-style:normal;font-size:12px;background:rgba(0,0,0,.08);padding:1px 8px;border-radius:999px}
.tabs a.active em{background:rgba(255,255,255,.25)}

.dl-thanh{display:flex;gap:14px;flex-wrap:wrap;align-items:center;justify-content:space-between;margin:18px 0 14px}
.dl-mien{display:flex;gap:8px;flex-wrap:wrap}
.dl-mien a{padding:7px 16px;border-radius:8px;border:1px solid #dbe6ee;background:#fff;font-size:14px;transition:.2s}
.dl-mien a:hover{border-color:var(--main)}
.dl-mien a.active{background:var(--main4);border-color:var(--main);color:var(--main2);font-weight:600}
.dl-tim{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid #dbe6ee;border-radius:10px;padding:4px 4px 4px 14px;min-width:310px}
.dl-tim i{color:var(--muted)}
.dl-tim input{flex:1;border:0;outline:0;font-family:inherit;font-size:14.5px;padding:7px 0;background:transparent}
.dl-tim .btn{padding:8px 18px;font-size:14px}

.dl-tinh{display:flex;gap:7px;flex-wrap:wrap;background:#fff;border:1px solid #e6eef3;border-radius:12px;padding:14px}
.dl-tinh a{font-size:13.5px;padding:5px 12px;border-radius:999px;background:var(--bg2);color:var(--text);transition:.2s}
.dl-tinh a:hover{background:var(--main4);color:var(--main2)}
.dl-tinh a.active{background:var(--main);color:#fff;font-weight:600}
.dl-tinh a em{font-style:normal;opacity:.65;font-size:11.5px;margin-left:3px}

.dl-luoi{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:4px}
.dl-the{background:#fff;border:1px solid #e6eef3;border-radius:14px;padding:18px 20px;transition:.25s;display:flex;flex-direction:column}
.dl-the:hover{border-color:var(--main3);box-shadow:0 12px 28px rgba(13,43,62,.1);transform:translateY(-3px)}
.dl-dau{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
.dl-loai{font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.3px;padding:3px 10px;border-radius:999px}
.dl-loai.dl-dai_ly{background:var(--main4);color:var(--main2)}
.dl-loai.dl-bao_hanh{background:#fff4e0;color:#b76a00}
.dl-loai.dl-co_so_nuoc{background:#e8f8ef;color:#1b7a46}
.dl-tinh-ten{font-size:13px;color:var(--muted);white-space:nowrap}
.dl-the h3{font-size:16px;line-height:1.45;color:var(--dark);margin:0 0 10px;font-weight:600}
.dl-dc{font-size:14px;color:var(--muted);line-height:1.6;margin:0 0 14px;flex:1}
.dl-dc i{color:var(--main3);margin-right:5px}
.dl-chan{display:flex;gap:8px;flex-wrap:wrap;border-top:1px solid #eef4f8;padding-top:12px;margin-top:auto}
.dl-dt,.dl-map{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;padding:6px 14px;border-radius:8px}
.dl-dt{background:var(--main4);color:var(--main2)}
.dl-dt:hover{background:var(--main);color:#fff}
.dl-map{background:var(--bg2);color:var(--text)}
.dl-map:hover{background:var(--dark);color:#fff}

@media(max-width:1024px){.dl-luoi{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){
  .dl-luoi{grid-template-columns:1fr}
  .dl-tim{min-width:100%}
  .dl-tinh{max-height:180px;overflow-y:auto}
}

/* Ảnh trung tâm trên thẻ đơn vị */
.dl-the{padding:0;overflow:hidden}
.dl-than{padding:16px 20px 18px;display:flex;flex-direction:column;flex:1}
.dl-anh{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg2)}
.dl-anh img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.dl-the:hover .dl-anh img{transform:scale(1.05)}
/* Ảnh mặc định khi đơn vị chưa có ảnh thật */
.dl-anh-trong{display:grid;place-items:center;
  background:linear-gradient(135deg,var(--main4) 0%,#f4fbfe 60%,#eaf6fc 100%)}
.dl-anh-trong .dl-bieu-tuong{font-size:40px;color:var(--main3);line-height:1}
.dl-anh-trong .dl-logo{position:absolute;right:12px;bottom:10px;width:76px;height:auto;
  opacity:.5;object-fit:contain;transition:none}
.dl-the:hover .dl-anh-trong .dl-logo{transform:none}


/* ===================== VIDEO ===================== */
.page-hero{background:linear-gradient(135deg,var(--dark),#13506f);color:#fff;padding:38px 0 34px;position:relative;overflow:hidden}
.v-card{background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 2px 12px rgba(13,43,62,.06);display:flex;flex-direction:column;transition:.3s}
.v-card:hover{transform:translateY(-5px);box-shadow:0 14px 32px rgba(13,43,62,.14)}
.v-thumb{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:#0a2230}
.v-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s,filter .3s}
.v-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0) 50%,rgba(0,0,0,.45))}
.v-card:hover .v-thumb img{transform:scale(1.06);filter:brightness(.85)}
.play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:62px;height:62px;border-radius:50%;background:rgba(255,255,255,.92);color:#e53935;display:grid;place-items:center;font-size:22px;z-index:2;box-shadow:0 8px 24px rgba(0,0,0,.3);transition:.3s}
.play i{margin-left:4px}
.play::before{content:"";position:absolute;inset:-8px;border-radius:50%;border:2px solid rgba(255,255,255,.7);animation:pl 1.8s infinite}
@keyframes pl{0%{transform:scale(.85);opacity:1}100%{transform:scale(1.3);opacity:0}}
.v-card:hover .play,.v-feat:hover .play{background:#e53935;color:#fff;transform:translate(-50%,-50%) scale(1.08)}
.v-tag{position:absolute;left:12px;top:12px;z-index:2;background:var(--main);color:#fff;font-size:11.5px;font-weight:500;padding:4px 10px;border-radius:999px}
.v-yt{position:absolute;right:10px;bottom:10px;z-index:2;color:#fff;font-size:12px;display:flex;align-items:center;gap:5px;background:rgba(0,0,0,.55);padding:3px 8px;border-radius:6px}
.v-yt i{color:#ff3d3d}
.v-body{padding:16px 18px 18px}
.v-body h3{font-size:16px;line-height:1.45;color:var(--dark);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:46px}
.v-body h3 a:hover{color:var(--main)}
.v-meta{display:flex;gap:14px;font-size:12.5px;color:var(--muted);margin-top:8px}
.v-meta i{color:var(--main);margin-right:3px}
.v-hero{background:linear-gradient(135deg,#0a2230,#13506f 70%,#1b8ec5);color:#fff;padding:40px 0 34px;position:relative;overflow:hidden}
.v-hero::before{content:"\f167";font-family:"Font Awesome 5 Brands";position:absolute;right:4%;top:50%;transform:translateY(-50%);font-size:220px;color:rgba(255,255,255,.05)}
.v-hero h1{font-size:34px;margin:8px 0}
.v-hero p{color:#c7dbe6;max-width:720px}
.cat-tabs a i{font-size:13px;opacity:.85}
.v-main{padding:44px 0 70px}
.v-feat{display:grid;grid-template-columns:1.45fr 1fr;gap:30px;align-items:center;background:#fff;border-radius:18px;padding:18px;box-shadow:var(--shadow);margin-bottom:40px}
.v-feat .v-thumb{border-radius:14px}
.v-feat .play{width:84px;height:84px;font-size:30px}
.v-feat .badge-new{display:inline-block;background:#fdecea;color:#e53935;font-weight:700;font-size:12px;padding:4px 12px;border-radius:999px;text-transform:uppercase;letter-spacing:.5px}
.v-feat h2{font-size:26px;line-height:1.35;color:var(--dark);margin:12px 0 10px}
.v-feat h2 a:hover{color:var(--main)}
.v-feat p{color:#5b6b77;margin-bottom:14px}
.v-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.yt-cta{margin-top:50px;background:linear-gradient(90deg,#c4302b,#e53935);color:#fff;border-radius:18px;padding:28px 32px;display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.yt-cta>i{font-size:54px}
.yt-cta div{flex:1;min-width:220px}
.yt-cta h2{font-size:22px}
.yt-cta p{opacity:.9}
.yt-cta .btn{background:#fff;color:#c4302b}
.yt-cta .btn:hover{background:#0a2230;color:#fff}
@media(max-width:1024px){.v-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:820px){.v-feat{grid-template-columns:1fr}}
@media(max-width:560px){.v-hero h1{font-size:26px}.cat-tabs{flex-wrap:nowrap;overflow-x:auto;margin-right:-16px;padding-bottom:4px}.cat-tabs a{white-space:nowrap}.v-grid{grid-template-columns:1fr}.v-feat{padding:12px}.v-feat h2{font-size:20px}.yt-cta{padding:22px;text-align:center;justify-content:center}}

/* ---- chi tiết video ---- */
.page-hero{background:linear-gradient(135deg,var(--dark),#13506f);color:#fff;padding:38px 0 34px;position:relative;overflow:hidden}
.v-card{background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 2px 12px rgba(13,43,62,.06);display:flex;flex-direction:column;transition:.3s}
.v-card:hover{transform:translateY(-5px);box-shadow:0 14px 32px rgba(13,43,62,.14)}
.v-thumb{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:#0a2230}
.v-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s,filter .3s}
.v-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0) 50%,rgba(0,0,0,.45))}
.v-card:hover .v-thumb img{transform:scale(1.06);filter:brightness(.85)}
.play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:62px;height:62px;border-radius:50%;background:rgba(255,255,255,.92);color:#e53935;display:grid;place-items:center;font-size:22px;z-index:2;box-shadow:0 8px 24px rgba(0,0,0,.3);transition:.3s}
.play i{margin-left:4px}
.play::before{content:"";position:absolute;inset:-8px;border-radius:50%;border:2px solid rgba(255,255,255,.7);animation:pl 1.8s infinite}
@keyframes pl{0%{transform:scale(.85);opacity:1}100%{transform:scale(1.3);opacity:0}}
.v-card:hover .play,.v-feat:hover .play{background:#e53935;color:#fff;transform:translate(-50%,-50%) scale(1.08)}
.v-tag{position:absolute;left:12px;top:12px;z-index:2;background:var(--main);color:#fff;font-size:11.5px;font-weight:500;padding:4px 10px;border-radius:999px}
.v-yt{position:absolute;right:10px;bottom:10px;z-index:2;color:#fff;font-size:12px;display:flex;align-items:center;gap:5px;background:rgba(0,0,0,.55);padding:3px 8px;border-radius:6px}
.v-yt i{color:#ff3d3d}
.v-body{padding:16px 18px 18px}
.v-body h3{font-size:16px;line-height:1.45;color:var(--dark);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:46px}
.v-body h3 a:hover{color:var(--main)}
.v-meta{display:flex;gap:14px;font-size:12.5px;color:var(--muted);margin-top:8px}
.v-meta i{color:var(--main);margin-right:3px}
.vd{padding:10px 0 50px}
.vd-grid{display:grid;grid-template-columns:minmax(0,1fr) 370px;gap:32px;align-items:start}
.player{position:relative;aspect-ratio:16/9;border-radius:16px;overflow:hidden;background:#000;box-shadow:0 18px 40px rgba(13,43,62,.2)}
.player iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.player .lite{position:absolute;inset:0;border:0;padding:0;cursor:pointer;background:#000}
.player .lite img{width:100%;height:100%;object-fit:cover;opacity:.9;transition:.3s}
.player .lite:hover img{opacity:1}
.player .play{width:86px;height:86px;font-size:30px}
.player .lite:hover .play{background:#e53935;color:#fff}
.vd-cat{display:inline-block;background:var(--main4);color:var(--main2);font-size:12.5px;font-weight:700;padding:5px 12px;border-radius:999px;text-transform:uppercase;letter-spacing:.5px;margin:20px 0 10px}
.vd h1{font-size:28px;line-height:1.35;color:var(--dark)}
.vd-bar{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;padding:14px 0;border-bottom:1px solid #eef2f5}
.vd-ch{display:flex;align-items:center;gap:12px}
.vd-ch img{width:46px;height:46px;border-radius:50%;object-fit:contain;background:#fff;border:1px solid #e3edf3;padding:4px}
.vd-ch b{display:block;color:var(--dark)}
.vd-ch small{color:var(--muted)}
.btn-yt{background:#e53935;color:#fff}
.btn-yt:hover{background:#c62828}
.vd-acts{display:flex;gap:8px;flex-wrap:wrap}
.vd-acts a,.vd-acts button{display:inline-flex;align-items:center;gap:7px;border:1px solid #dbe6ee;background:#fff;border-radius:999px;padding:8px 14px;font-size:14px;cursor:pointer;font-family:inherit;color:var(--text);transition:.2s}
.vd-acts a:hover,.vd-acts button:hover{background:var(--main4);border-color:var(--main3);color:var(--main2)}
.vd-desc{background:var(--bg2);border-radius:14px;padding:18px 20px;margin-top:16px;font-size:15.5px;line-height:1.75;color:#3b4a55}
.vd-desc .vd-meta{font-weight:500;color:var(--dark);margin-bottom:8px;display:flex;gap:16px;flex-wrap:wrap}
.vd-desc .vd-meta i{color:var(--main);margin-right:4px}
.vd-prod{display:flex;gap:16px;align-items:center;border:1px solid #e3edf3;border-radius:14px;padding:14px;margin-top:18px;background:#fff}
.vd-prod img{width:80px;height:96px;object-fit:cover;border-radius:10px}
.vd-prod small{color:var(--main);font-weight:700;text-transform:uppercase;font-size:12px}
.vd-prod b{display:block;color:var(--dark);line-height:1.4}
.vd-prod span{color:#e53935;font-weight:700}
.vd-prod .btn{margin-left:auto;white-space:nowrap}
.up{position:sticky;top:88px;background:#fff;border:1px solid #e6eef3;border-radius:16px;overflow:hidden}
.up h3{font-size:15px;text-transform:uppercase;letter-spacing:.5px;color:var(--dark);padding:16px 18px;border-bottom:1px solid #eef2f5;display:flex;justify-content:space-between;align-items:center}
.up h3 small{font-size:12px;color:var(--muted);text-transform:none;letter-spacing:0;font-weight:400}
.up ol{list-style:none;max-height:calc(100vh - 190px);overflow-y:auto;padding:8px;counter-reset:n;scrollbar-width:thin}
.up ol li a{display:grid;grid-template-columns:22px 128px 1fr;gap:10px;align-items:center;padding:8px;border-radius:10px;transition:.2s}
.up ol li a::before{counter-increment:n;content:counter(n);font-size:12px;color:var(--muted);text-align:center}
.up ol li a:hover{background:var(--bg2)}
.up ol li a.now{background:var(--main4)}
.up ol li a.now::before{content:"\f04b";font-family:"Font Awesome 5 Free";font-weight:900;color:var(--main)}
.up .t{position:relative;aspect-ratio:16/9;border-radius:8px;overflow:hidden}
.up .t img{width:100%;height:100%;object-fit:cover}
.up .t i{position:absolute;inset:0;display:grid;place-items:center;color:#fff;background:rgba(0,0,0,.25);font-size:14px;opacity:0;transition:.2s}
.up ol li a:hover .t i{opacity:1}
.up b{font-size:13.5px;line-height:1.4;color:var(--dark);font-weight:500;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.up small{display:block;font-size:12px;color:var(--muted);margin-top:3px}
.related .v-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
@media(max-width:1100px){.vd-grid{grid-template-columns:minmax(0,1fr) 320px}.up ol li a{grid-template-columns:22px 110px 1fr}.related .v-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:900px){.vd-grid{grid-template-columns:1fr}.up{position:static}.up ol{max-height:420px}}
@media(max-width:560px){.vd{padding-top:0}.vd .container.vd-grid{padding:0}.player{border-radius:0}.vd-info{padding:0 16px}.vd h1{font-size:21px}.up{margin:0 16px}.related .v-grid{grid-template-columns:1fr}.vd-prod{flex-wrap:wrap}.vd-prod .btn{margin-left:0;width:100%;justify-content:center}.vd-bar .btn-yt{padding:9px 16px}}

/* Khung phát video: ảnh đại diện + nút play, iframe chỉ nạp khi bấm */
.player{position:relative;aspect-ratio:16/9;background:#000;border-radius:14px;overflow:hidden;cursor:pointer}
.player img{width:100%;height:100%;object-fit:cover;transition:transform .5s,filter .3s}
.player:hover img{transform:scale(1.03);filter:brightness(.82)}
.player iframe{width:100%;height:100%;border:0;display:block}
.play-big{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:78px;height:78px;
  border-radius:50%;border:0;background:rgba(229,57,53,.92);color:#fff;font-size:28px;cursor:pointer;
  display:grid;place-items:center;transition:.25s;box-shadow:0 8px 28px rgba(0,0,0,.35)}
.player:hover .play-big{background:#e53935;transform:translate(-50%,-50%) scale(1.08)}
.play-big i{margin-left:5px}
.vd-head{padding:18px 0 6px}
.vd-head h1{font-size:26px;line-height:1.35;color:var(--dark);margin:10px 0}
@media(max-width:620px){.play-big{width:60px;height:60px;font-size:22px}.vd-head h1{font-size:21px}}

/* ===== Modal tư vấn ===== */
.tv-overlay{position:fixed;inset:0;z-index:9999;background:rgba(0,0,0,.55);display:none;align-items:center;justify-content:center;padding:16px;overflow-y:auto}
.tv-overlay.open{display:flex}
.tv-modal{background:#fff;border-radius:14px;max-width:560px;width:100%;padding:32px 28px;position:relative;animation:tvIn .25s ease}
@keyframes tvIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.tv-close{position:absolute;top:12px;right:16px;background:none;border:none;font-size:28px;color:#999;cursor:pointer;line-height:1}
.tv-close:hover{color:#333}
.tv-head{text-align:center;margin-bottom:22px}
.tv-head i{font-size:36px;color:var(--primary);margin-bottom:8px;display:block}
.tv-head h3{font-size:22px;color:var(--dark);margin:0 0 6px}
.tv-head p{color:#666;font-size:14px;margin:0}
.tv-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.tv-field{margin-bottom:14px}
.tv-field label{display:block;font-size:13px;font-weight:600;color:#555;margin-bottom:4px}
.tv-field label em{color:#e53935;font-style:normal}
.tv-field label i{width:16px;color:var(--primary);margin-right:4px}
.tv-field input,.tv-field select,.tv-field textarea{width:100%;padding:10px 12px;border:1px solid #ddd;border-radius:8px;font-size:14px;transition:border .2s}
.tv-field input:focus,.tv-field select:focus,.tv-field textarea:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px rgba(25,118,210,.1)}
.tv-submit{width:100%;padding:14px;font-size:16px;border-radius:10px;margin-top:6px}
.tv-ok{text-align:center;padding:30px 0}
.tv-ok i{font-size:56px;color:#43a047;margin-bottom:14px;display:block}
.tv-ok h3{font-size:22px;color:var(--dark);margin:0 0 8px}
.tv-ok p{color:#666;margin:0 0 20px}
@media(max-width:600px){.tv-row{grid-template-columns:1fr}.tv-modal{padding:24px 18px;border-radius:10px}.tv-head h3{font-size:19px}}