/* TDC • Giao diện HTML độc lập. Đổi bảng màu tại :root. */
:root{--blue:#2e4c9b;--deep:#17356f;--navy:#17304f;--orange:#f48120;--ink:#203956;--muted:#5d7084;--glass:rgba(255,255,255,.23);--line:rgba(255,255,255,.48);--max:1120px;--radius:0 48px 0 48px;--heading:'Oswald','Arial Narrow',Arial,sans-serif;--body:'Inter',Arial,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:88px}body{margin:0;color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.65;background:#edf5fb}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default}img{display:block;max-width:100%;height:auto}svg.icon{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}svg.brand-icon{fill:currentColor;stroke:none}.svg-sprite{position:absolute;width:0;height:0;overflow:hidden}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}[hidden]{display:none!important}:focus-visible{outline:3px solid var(--orange);outline-offset:4px}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.35}h2{font-family:var(--heading);font-weight:600}a,button{touch-action:manipulation}.wrap{width:min(var(--max),calc(100% - 48px));margin-inline:auto}.skip-link{position:fixed;top:-70px;left:16px;z-index:100;background:white;padding:12px 20px;color:var(--blue)}.skip-link:focus{top:10px}
/* Thanh điều hướng và nhận diện */
.main-nav{border-top:3px solid var(--blue);background:#f6f9fd;position:sticky;top:0;z-index:40;box-shadow:0 1px 0 #cdd9e433}.nav-inner{display:flex;align-items:stretch;min-height:58px}.nav-list{list-style:none;margin:0;padding:0;display:flex;align-items:stretch;flex:1}.nav-item{display:flex;position:relative;align-items:stretch}.nav-link{display:flex;gap:6px;align-items:center;justify-content:center;padding:0 20px;min-height:58px;font-size:14px;font-weight:600;white-space:nowrap;text-transform:uppercase;transition:background .2s,color .2s}.nav-link:hover,.nav-item:focus-within>.nav-link{color:var(--blue);background:#e9f0fa}.nav-link.active{background:var(--blue);color:#fff}.nav-link .icon{width:14px;height:14px}.dropdown{display:none;position:absolute;top:100%;left:0;min-width:240px;padding:8px;background:#fff;box-shadow:0 15px 40px #152f6c26;border:1px solid #dfe8f2;border-radius:0 0 16px 16px}.dropdown a{display:block;padding:9px 14px;font-size:14px;border-radius:6px}.dropdown a:hover{color:var(--blue);background:#edf3fb}.nav-item.open>.dropdown{display:block}.nav-hotline{display:flex;align-items:center;gap:8px;margin-left:auto;color:var(--blue);font-size:14px;font-weight:700;white-space:nowrap}.menu-toggle{display:none}.brand-header{background:linear-gradient(180deg,#fff 15%,#f6fafe);border-bottom:1px solid #fff}.brand-inner{min-height:117px;display:grid;grid-template-columns:205px 1fr 205px;align-items:center;gap:24px}.brand-logo{width:205px}.brand-logo img{width:100%;height:auto;object-fit:contain}.brand-title{text-align:center}.brand-title h1{font-family:var(--heading);font-size:clamp(24px,2.4vw,32px);font-weight:600;color:var(--blue);letter-spacing:.01em}.brand-title p{font-size:13px;color:#60758c;letter-spacing:.16em;margin-top:3px;text-transform:uppercase}.brand-contact{display:flex;gap:10px;align-items:center;justify-content:flex-end;color:var(--blue)}.brand-contact>.icon{width:32px;height:32px}.brand-contact small{display:block;white-space:nowrap;font-size:11px;color:#637891}.brand-contact strong{font-size:19px;font-weight:700}.brand-contact span{display:block;white-space:nowrap;font-size:11px;color:#637891}
/* Nền xanh và khung kính theo bố cục tham chiếu */
.page-background{position:relative;overflow:hidden;background:radial-gradient(ellipse at 93% 65%,#b8d9f17a 0,transparent 35%),linear-gradient(180deg,#355aab 0%,#3e64b1 38%,#6592c4 65%,#d9ebf7 91%,#eef7fb 100%);padding:26px 0 44px}.glass-shell{border:1px solid var(--line);border-radius:var(--radius);background:var(--glass);padding:24px 38px 32px;box-shadow:inset 0 1px 0 #ffffff21,0 12px 45px #1939740a}.toolbar{display:flex;gap:22px;align-items:center;justify-content:space-between;margin-bottom:12px}.news-ticker{min-width:0;display:flex;align-items:center;gap:12px;color:#fff;max-width:58%}.news-ticker strong{flex:none;font-size:12px;letter-spacing:.05em}.news-ticker strong::after{content:'›';padding-left:9px;color:#ffd3ab;font-size:21px;vertical-align:-1px}.news-ticker a{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px;font-weight:500}.search-form{display:flex;align-items:stretch;flex:none;height:36px;width:365px;position:relative}.search-form select{width:102px;border:0;border-right:5px solid transparent;padding:0 9px;background:#fff;color:#516983;font-size:12px;margin-right:7px;border-radius:2px}.search-field{display:flex;flex:1;min-width:0}.search-field input{width:100%;min-width:0;border:0;background:#fff;padding:0 12px;color:var(--ink);font-size:12px;border-radius:2px 0 0 2px}.search-form button{border:0;width:38px;background:var(--blue);color:#fff;display:grid;place-items:center}.search-form button:hover{background:var(--deep)}
/* Slider: giữ nguyên toàn bộ ảnh, không phủ tối, không cắt logo. */
.hero{overflow:hidden;border-radius:0 44px 0 44px;background:#fff;box-shadow:0 8px 24px #173b7921}.slide-stage{position:relative;aspect-ratio:1600/855;background:#e7f1e4}.hero-slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .65s ease,visibility .65s}.hero-slide.is-active{opacity:1;visibility:visible;z-index:1}.hero-slide img{width:100%;height:100%;object-fit:contain}.slide-prev,.slide-next{position:absolute;top:calc(50% - 22px);z-index:3;display:grid;place-items:center;width:36px;height:46px;border:1px solid #fff6;color:#fff;background:#17304f45;border-radius:6px;opacity:.65;transition:opacity .2s}.hero:hover .slide-prev,.hero:hover .slide-next,.slide-prev:focus-visible,.slide-next:focus-visible{opacity:1}.slide-prev{left:14px}.slide-next{right:14px}.slide-prev .icon,.slide-next .icon{width:22px;height:22px}.hero-bar{height:54px;background:linear-gradient(100deg,#23478f,#315da8);display:flex;align-items:center;justify-content:space-between;padding:0 26px 0 34px;color:white}.socials{display:flex;align-items:center;gap:7px}.social-link{display:grid;place-items:center;width:36px;height:38px;color:inherit;border-radius:6px;transition:background .2s}.social-link:hover{background:#ffffff25}.social-link .icon{width:22px;height:22px}.social-link.zalo{font-size:12px;font-weight:800;letter-spacing:-.04em}.slide-controls{display:flex;align-items:center;gap:8px}.slide-dot{border:0;padding:0;width:11px;height:11px;border-radius:50%;background:#ffffff5c;box-shadow:0 0 0 7px transparent;margin:0 5px;transition:background .2s}.slide-dot[aria-current=true]{background:#fff}.slide-pause{border:1px solid #ffffff35;border-radius:4px;background:none;color:#fff;width:30px;height:30px;display:grid;place-items:center;margin-left:8px}.slide-pause .icon{width:15px;height:15px}
/* Các thẻ danh mục 3 cột */
.category-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:20px}.category-card{min-width:0;width:100%;position:relative;isolation:isolate;display:flex;align-items:center;min-height:163px;aspect-ratio:1.98;border-radius:0 35px 0 35px;border:1px solid #fff;background:linear-gradient(125deg,#fff 10%,#e4eef8 100%);overflow:hidden;box-shadow:inset 0 0 0 3px #ffffff40,0 7px 15px #1b408015;transition:transform .2s,box-shadow .2s}.category-card:hover{transform:translateY(-4px);box-shadow:0 12px 24px #16377433}.category-copy{position:relative;z-index:3;padding:16px 0 18px 18px;width:55%;color:var(--blue)}.category-copy h2{font-size:clamp(23px,2.4vw,29px);line-height:1.24;text-transform:uppercase;font-weight:600}.category-copy span{display:block;margin-top:10px;font-size:11px;color:#637996;line-height:1.4}.category-products{position:absolute;inset:0 0 0 44%;display:flex;align-items:center;justify-content:center;mix-blend-mode:multiply;z-index:1}.category-products img{width:100%;height:92%;object-fit:contain;transform:rotate(5deg)}.category-products img+img{position:absolute;height:69%;width:82%;left:-25%;bottom:5%;transform:rotate(-7deg)}.category-card.photo-card::after{content:'';position:absolute;inset:0;z-index:2;background:linear-gradient(90deg,#f5faff 8%,#e9f3fcf2 34%,#eaf5fc20 78%)}.category-photo{position:absolute;right:0;bottom:0;width:76%;height:100%;object-fit:cover}.category-card.photo-card .category-copy{width:60%}.category-card .category-tag{position:absolute;right:12px;top:13px;z-index:4;background:#fff9;color:var(--blue);border:1px solid #fff9;border-radius:50%;width:29px;height:29px;display:grid;place-items:center}.category-tag .icon{width:15px;height:15px}.category-card.group-card .category-photo{width:95%;object-position:60% 70%}
/* Tin, sản phẩm và video */
.panel{background:rgba(247,252,255,.85);border:1px solid #ffffff80;border-radius:var(--radius);padding:24px 26px 30px;margin-top:28px}.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:13px;margin-bottom:18px;border-bottom:1px solid #8daec840}.section-head h2{font-size:24px;text-transform:uppercase;color:var(--blue);font-weight:500}.section-head>a{font-size:12px;font-weight:600;color:var(--blue);border-bottom:1px solid #a6bbd2;white-space:nowrap}.section-head>a:hover{color:var(--deep);border-color:var(--deep)}.news-grid,.video-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}.news-label{font-size:12px;text-transform:uppercase;letter-spacing:.025em;color:#526881;margin-bottom:10px;display:block}.news-img{display:block;aspect-ratio:1.6;overflow:hidden;background:#dae6ef}.news-img img{height:100%;width:100%;object-fit:cover;transition:transform .35s}.news-img:hover img{transform:scale(1.04)}.news-card h3{font-family:var(--heading);font-weight:400;font-size:21px;text-transform:uppercase;color:var(--blue);margin:14px 0 10px;line-height:1.45}.news-card h3 a:hover{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}.news-card p{font-size:14px;line-height:1.75;color:#52667c}.section-eyebrow{display:block;font-size:11px;letter-spacing:.12em;color:var(--muted);text-transform:uppercase;margin-bottom:3px}.product-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.product-card{background:#fff;border:1px solid #dce7f1;border-radius:0 22px 0 22px;overflow:hidden;transition:transform .2s,box-shadow .2s}.product-card:hover{transform:translateY(-4px);box-shadow:0 10px 25px #24488e18}.product-picture{padding:14px 15px 0;aspect-ratio:1}.product-picture img{height:100%;width:100%;object-fit:contain}.product-details{padding:14px 15px 18px}.product-type{display:block;font-size:11px;letter-spacing:.03em;color:#6e7e90;margin-bottom:4px}.product-card h3{font-family:var(--heading);font-size:20px;font-weight:500;color:var(--blue)}.product-contact{font-size:12px;color:#a54b00;display:block;margin-top:10px;font-weight:600}.products-panel{margin-top:34px}.products-panel .section-head{margin-bottom:20px}.under-shell{margin-top:40px}.about-layout{display:grid;grid-template-columns:2fr 1fr;gap:28px}.about-panel{margin:0;padding:24px;display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}.about-photo{border-radius:0 26px 0 26px;overflow:hidden;display:block;background:#dfedf7}.about-photo img{width:100%;aspect-ratio:1.25;object-fit:cover;object-position:center bottom}.about-photo-label{padding:11px 14px;background:#fff9;font-size:12px;color:var(--blue);font-weight:600}.about-copy h2{font-size:25px;color:var(--blue);margin-bottom:13px}.about-copy p{font-size:14px;color:#4d627a;margin-bottom:14px;line-height:1.8}.text-button{display:inline-flex;align-items:center;background:white;border:1px solid #dce6f3;padding:8px 15px;color:var(--blue);font-family:var(--heading);font-size:15px;font-weight:500;text-transform:uppercase;border-radius:0 10px 0 10px}.text-button:hover{background:var(--blue);color:white}.culture-card{background:linear-gradient(150deg,#f7fcff,#dceafa);padding:26px 25px;border-radius:35px 0 35px 0;border:1px solid #ffffffb3}.culture-card h2{font-size:23px;color:var(--blue);text-transform:uppercase;margin-bottom:18px}.culture-list{list-style:none;padding:0;margin:0;display:grid;gap:16px}.culture-list li{display:flex;gap:13px;align-items:flex-start;font-size:14px;line-height:1.65}.culture-list b{font-family:var(--heading);font-size:20px;color:#8aa6c8;font-weight:400;line-height:1.3}.culture-card>a{display:inline-block;margin-top:18px;color:var(--blue);font-size:13px;font-weight:600;border-bottom:1px solid #a8bed6}.video-panel{margin-top:30px;background:#f5faffb8}.video-image{display:block;position:relative;aspect-ratio:16/9;background:#dce6ef;overflow:hidden}.video-image img{width:100%;height:100%;object-fit:contain;transition:transform .35s}.video-image:hover img{transform:scale(1.035)}.video-card h3{font-size:16px;color:var(--blue);line-height:1.6;margin-top:13px;font-weight:600}.video-card h3 a:hover{text-decoration:underline}.play-badge{position:absolute;bottom:10px;left:10px;display:flex;align-items:center;gap:6px;background:#193c7ae8;color:white;padding:4px 10px;border-radius:4px;font-size:11px}.play-badge .icon{width:13px;height:13px}.advice-strip{display:flex;align-items:center;justify-content:space-between;gap:25px;margin-top:30px;padding:22px 27px;background:linear-gradient(110deg,#315298,#28579a);color:#fff;border:1px solid #ffffff80;border-radius:0 25px 0 25px}.advice-strip p{font-family:var(--heading);font-size:23px;line-height:1.4}.advice-strip span{font-size:13px;color:#dce7fa}.contact-button{display:flex;align-items:center;gap:10px;padding:11px 20px;background:white;color:var(--blue);font-weight:700;border-radius:0 14px 0 14px;white-space:nowrap;font-size:14px}.contact-button:hover{background:#edf4fe}
/* Chân trang */
.site-footer{margin-top:42px;display:grid;grid-template-columns:1.4fr .85fr 1fr;gap:36px;padding:30px;border:1px solid #fff;border-radius:30px 0 30px 0;background:#ffffffb3;backdrop-filter:blur(12px)}.footer-heading{font-family:var(--heading);font-size:17px;line-height:1.4;text-transform:uppercase;font-weight:500;padding:10px 14px;color:white;background:linear-gradient(100deg,#2c5099,#4978b7);border-radius:0 12px 0 12px;margin-bottom:17px}.footer-logo{width:150px;margin:8px 0 15px}.footer-name{font-size:14px;font-weight:700;color:var(--blue);margin-bottom:10px}.footer-contact{display:grid;gap:9px;font-size:13px;color:#4d6581;word-break:break-word}.footer-contact a{display:flex;align-items:flex-start;gap:9px}.footer-contact .icon{width:16px;height:16px;margin-top:4px}.footer-list{list-style:none;padding:0 12px;margin:0;display:grid;gap:7px;font-size:13px}.footer-list a:hover{text-decoration:underline;color:var(--blue)}.footer-socials{color:var(--blue);margin-top:18px}.footer-socials .social-link:hover{background:#dfeaf6}.copyright{background:#fff;font-size:12px;color:#62758b;padding:17px 0}.copyright .wrap{display:flex;justify-content:space-between;align-items:center;gap:20px}.copyright b{color:var(--blue);font-weight:600}.copyright a:hover{text-decoration:underline}.back-to-top{position:fixed;bottom:22px;right:22px;width:42px;height:42px;display:grid;place-items:center;background:var(--blue);color:#fff;border:1px solid #fff8;border-radius:8px;box-shadow:0 3px 15px #193a702b;z-index:25;opacity:0;pointer-events:none;transition:opacity .25s}.back-to-top.visible{opacity:1;pointer-events:auto}
/* Tìm kiếm chỉ trong nội dung đã đưa vào giao diện */
.search-panel{margin:12px 0 20px;border-radius:0 25px 0 25px;background:#fff;padding:20px;border:1px solid #d3e0ef;scroll-margin-top:90px}.search-panel-header{display:flex;justify-content:space-between;gap:14px;align-items:center;margin-bottom:10px}.search-panel-header h2{color:var(--blue);font-size:21px}.search-close{border:0;display:grid;place-items:center;width:34px;height:34px;background:#eaf1fa;color:var(--blue);border-radius:50%}.search-meta{font-size:13px;color:var(--muted);margin-bottom:12px}.search-results{list-style:none;padding:0;margin:0;display:grid;gap:6px}.search-result{display:block;padding:10px 12px;border:1px solid #e2eaf3;border-radius:5px;color:var(--blue);font-size:14px}.search-result small{display:block;color:var(--muted);font-size:11px;margin-bottom:2px}.search-result:hover{background:#edf4fd}.search-empty{color:var(--muted);font-size:14px;padding:10px}.search-help{font-size:12px;color:var(--muted);margin-top:14px}.search-help a{color:var(--blue);text-decoration:underline}.noscript-note{background:white;padding:10px;font-size:13px;color:var(--ink)}
/* Máy tính bảng và điện thoại */
@media(min-width:1500px){:root{--max:1180px}.brand-inner{min-height:130px}.glass-shell{padding-inline:40px}.category-card{min-height:172px}}
@media(max-width:1150px){.nav-link{padding-inline:14px;font-size:13px}.nav-hotline{display:none}.brand-inner{grid-template-columns:185px 1fr 155px;gap:15px}.brand-logo{width:185px}.brand-contact>.icon{display:none}.brand-contact strong{font-size:17px}.glass-shell{padding:22px 27px 28px}.search-form{width:335px}.news-ticker{max-width:52%}.category-grid{gap:18px}.category-copy{padding-left:14px}.category-copy h2{font-size:25px}.category-card{min-height:148px}.category-copy span{font-size:11px}.about-panel{gap:18px;padding:20px}.site-footer{gap:24px}}
@media(max-width:900px){.brand-inner{grid-template-columns:155px 1fr;min-height:104px}.brand-logo{width:155px}.brand-contact{display:none}.brand-title h1{font-size:27px}.brand-title p{font-size:11px}.nav-link{padding-inline:12px;font-size:12px}.toolbar{gap:10px;flex-wrap:wrap}.news-ticker{max-width:100%;width:100%}.search-form{width:100%;height:39px}.news-ticker a{font-size:12px}.glass-shell{padding:18px 22px 24px}.category-card{min-height:125px}.category-copy h2{font-size:23px}.category-copy span{display:none}.category-grid{gap:16px}.category-products{left:42%}.category-copy{padding-left:12px}.category-card.photo-card .category-copy{width:65%}.panel{padding:20px}.news-grid,.video-grid{gap:18px}.news-card h3{font-size:19px}.news-card p{font-size:13px}.news-label{font-size:11px}.product-grid{gap:12px}.product-details{padding:12px}.product-card h3{font-size:18px}.about-layout{grid-template-columns:1fr}.about-panel{grid-template-columns:1fr 1.15fr;padding:24px;gap:26px}.about-photo img{aspect-ratio:1.2}.culture-card{padding:24px}.culture-list{grid-template-columns:1fr 1fr;gap:15px 25px}.culture-card h2{margin-bottom:14px}.site-footer{grid-template-columns:1.4fr 1fr;gap:25px}.footer-products{grid-row:span 2}.footer-links{grid-column:2}.video-card h3{font-size:14px}}
@media(max-width:650px){html{scroll-padding-top:68px}.wrap{width:calc(100% - 28px)}.main-nav{border-top-width:3px}.nav-inner{min-height:47px;position:relative;align-items:center;justify-content:space-between}.menu-toggle{display:flex;align-items:center;gap:9px;border:0;background:none;color:var(--blue);font-size:13px;font-weight:700;min-height:47px;padding:0 4px}.menu-toggle .icon{width:23px;height:23px}.nav-hotline{display:flex;font-size:13px;gap:6px}.nav-hotline .icon{width:16px;height:16px}.nav-list{display:none;position:absolute;top:100%;left:-14px;right:-14px;padding:8px 14px 15px;background:#fff;border-bottom:1px solid #dbe6f0;box-shadow:0 14px 24px #1e428126;max-height:calc(100dvh - 60px);overflow-y:auto}.nav-list.is-open{display:block}.nav-item{display:block}.nav-link{justify-content:flex-start;padding:10px 14px;font-size:13px;min-height:44px;border-radius:5px}.nav-item>.dropdown{position:static;box-shadow:none;border:0;margin:0 0 7px 16px;border-left:2px solid #dbe7f6;border-radius:0;padding:2px 8px}.nav-item:hover>.dropdown{display:none}.nav-item.open>.dropdown{display:block}.dropdown a{font-size:13px;padding:8px 12px}.brand-inner{min-height:100px;grid-template-columns:102px 1fr;gap:12px}.brand-logo{width:102px}.brand-title{text-align:left}.brand-title h1{font-size:22px;line-height:1.35}.brand-title p{font-size:9px;letter-spacing:.09em;line-height:1.6;margin-top:3px}.page-background{padding:14px 0 25px;background:linear-gradient(180deg,#355aab 0,#4f78b7 50%,#e3f0f8 100%)}.glass-shell{width:calc(100% - 18px);padding:13px 11px 16px;border-radius:0 27px 0 27px}.toolbar{margin-bottom:11px;gap:9px}.news-ticker{gap:7px;padding-inline:2px}.news-ticker strong{font-size:10px}.news-ticker strong::after{font-size:17px;padding-left:5px}.news-ticker a{font-size:11px}.search-form{height:37px}.search-form select{width:104px;font-size:12px;margin-right:5px}.search-field input{font-size:12px;padding-inline:9px}.hero{border-radius:0 25px 0 25px}.hero-bar{height:44px;padding:0 14px 0 17px}.socials{gap:3px}.social-link{width:31px;height:34px}.social-link .icon{width:19px;height:19px}.social-link.zalo{font-size:11px}.slide-controls{gap:5px}.slide-dot{width:9px;height:9px;margin-inline:5px}.slide-pause{width:27px;height:27px;margin-left:3px}.slide-prev,.slide-next{width:27px;height:37px;top:calc(50% - 19px);opacity:.8}.slide-prev{left:7px}.slide-next{right:7px}.slide-prev .icon,.slide-next .icon{width:18px;height:18px}.category-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:11px;margin-top:14px}.category-card{min-height:118px;aspect-ratio:auto;border-radius:0 24px 0 24px}.category-copy{padding:12px 0 12px 10px;width:61%}.category-copy h2{font-size:21px}.category-products{left:53%;right:-4%;top:3px;bottom:0}.category-products img{height:87%;transform:rotate(4deg)}.category-products img+img{display:none}.category-photo{width:90%;object-position:62% center}.category-card.photo-card .category-copy{width:80%}.category-card.photo-card::after{background:linear-gradient(90deg,#f0f7ff 2%,#ebf4ffe8 35%,#e8f4fc40 85%)}.category-card .category-tag{right:8px;top:7px;width:22px;height:22px}.category-tag .icon{width:12px;height:12px}.panel{padding:18px 15px 22px;border-radius:0 28px 0 28px;margin-top:20px}.section-head{padding-bottom:11px;gap:9px;margin-bottom:16px;align-items:center}.section-head h2{font-size:22px}.section-head>a{font-size:11px}.news-grid{grid-template-columns:1fr;gap:23px}.news-label{font-size:11px;margin-bottom:8px}.news-img{aspect-ratio:16/9}.news-card h3{font-size:21px;margin:11px 0 7px}.news-card p{font-size:14px;line-height:1.8}.news-card+.news-card{border-top:1px solid #aec4d755;padding-top:19px}.product-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.product-picture{padding:10px 9px 0}.product-details{padding:11px 12px 14px}.product-card h3{font-size:19px}.product-type{font-size:10px}.product-contact{font-size:11px;margin-top:8px}.under-shell{margin-top:24px}.about-layout{gap:20px}.about-panel{margin-top:0;grid-template-columns:1fr;padding:18px;gap:19px}.about-photo img{aspect-ratio:1600/855;object-fit:contain}.about-copy h2{font-size:26px}.about-copy p{font-size:14px}.culture-card{padding:22px;border-radius:28px 0 28px 0}.culture-card h2{font-size:23px}.culture-list{grid-template-columns:1fr;gap:13px}.video-grid{grid-template-columns:1fr;gap:24px}.video-card h3{font-size:15px;margin-top:10px}.advice-strip{display:block;padding:23px;margin-top:23px}.advice-strip p{font-size:24px}.advice-strip span{font-size:13px;display:block;margin-top:7px}.contact-button{margin-top:17px;display:inline-flex;padding:9px 16px;font-size:14px}.site-footer{grid-template-columns:1fr;gap:23px;padding:23px;margin-top:25px;border-radius:26px 0 26px 0}.footer-products,.footer-links{grid-column:auto;grid-row:auto}.footer-logo{width:150px}.footer-heading{margin-bottom:12px;font-size:17px}.footer-contact,.footer-list{font-size:14px}.footer-list{grid-template-columns:1fr 1fr;padding:0;gap:10px 18px}.copyright{padding:16px 0 21px}.copyright .wrap{display:block;line-height:1.9;font-size:11px}.copyright .wrap>span{display:block}.back-to-top{bottom:14px;right:12px;width:36px;height:36px}.search-panel{padding:15px}.search-panel-header h2{font-size:20px}.search-result{font-size:13px}}
@media(max-width:370px){.brand-title h1{font-size:20px}.brand-inner{grid-template-columns:90px 1fr;gap:9px}.brand-logo{width:90px}.brand-title p{font-size:8px}.category-copy h2{font-size:19px}.category-card{min-height:106px}.category-copy{padding-left:8px}.section-head h2{font-size:20px}.section-head>a{font-size:10px}.hero-bar{padding-inline:12px}.socials{gap:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.category-card:hover,.product-card:hover{transform:none}}
@media print{.main-nav,.toolbar,.hero-bar,.back-to-top,.slide-prev,.slide-next,.advice-strip{display:none}.page-background{background:#fff;padding:0}.wrap,.glass-shell{width:100%}.glass-shell,.panel,.site-footer{border:0;box-shadow:none;background:white}.product-card,.news-card{break-inside:avoid}.brand-header{border-bottom:1px solid #ddd}.copyright{color:#222}}

/* TDC Signature — phiên bản nhận diện riêng, không sao chép giao diện tham chiếu. */
:root{--radius:24px}.brand-header{border-top:4px solid var(--blue)}.brand-inner{min-height:112px}.brand-title p{letter-spacing:.12em}.main-nav{border-top:0;background:var(--blue);box-shadow:0 5px 18px #193e7521}.nav-link{color:#fff;position:relative}.nav-link.active{background:#203f82}.nav-link.active::after{content:'';position:absolute;height:3px;left:20px;right:20px;bottom:10px;background:var(--orange);border-radius:3px}.nav-link:hover,.nav-item:focus-within>.nav-link{background:#23458e;color:#fff}.product-toggle{color:white!important}.nav-hotline{color:#fff}.dropdown{color:var(--ink)}.glass-shell{border-radius:28px;padding-top:24px;background:rgba(255,255,255,.17)}.hero{border-radius:18px;border-top:3px solid var(--orange);box-shadow:0 12px 35px #143a7838}.hero-bar{background:#f7fbff;color:var(--blue);padding-left:22px}.hero-bar .social-link{width:30px;height:30px;border-radius:50%;background:var(--blue);color:white;margin-right:6px}.hero-bar .social-link .icon{width:16px;height:16px}.hero-bar .social-link.zalo{font-size:10px}.hero-bar .social-link:hover{background:var(--deep)}.slide-dot{background:#ccd8ec}.slide-dot[aria-current=true]{background:var(--blue)}.slide-pause{border-color:#d4e0ef;color:var(--blue)}.category-heading{margin:25px 0 15px;color:#fff;display:flex;align-items:center;gap:18px}.category-heading>span{font-size:10px;font-weight:700;letter-spacing:.09em;border-left:3px solid #ffb268;padding-left:9px;flex:none}.category-heading h2{font-family:var(--body);font-size:17px;font-weight:500;line-height:1.5}.category-grid{margin-top:0;counter-reset:category}.category-card{border-radius:18px;border:1px solid #ffffffb3;box-shadow:0 8px 25px #143a781a;counter-increment:category}.category-card::before{content:'0' counter(category);position:absolute;left:18px;top:12px;font:500 11px var(--body);color:#91a7c1;z-index:4}.category-copy{padding-top:31px}.category-copy span{margin-top:8px}.category-products img{transform:rotate(0deg)}.category-products img+img{transform:rotate(-4deg)}.panel{border-radius:24px}.section-head h2{position:relative;padding-left:13px}.section-head h2::before{content:'';position:absolute;left:0;top:5px;bottom:4px;width:3px;border-radius:3px;background:var(--orange)}.news-grid{grid-template-columns:1.1fr 1fr;gap:22px 26px}.news-card:first-child{grid-row:span 2}.news-card:first-child .news-img{aspect-ratio:1.9;border-radius:12px}.news-card:first-child h3{font-size:24px}.news-card:not(:first-child){display:grid;grid-template-columns:125px minmax(0,1fr);grid-template-rows:auto auto 1fr;column-gap:15px;align-content:start}.news-card:not(:first-child) .news-img{grid-column:1;grid-row:1 / 4;height:100%;min-height:160px;aspect-ratio:auto;border-radius:12px}.news-card:not(:first-child) .news-label{grid-column:2;margin:0 0 5px;font-size:10px}.news-card:not(:first-child) h3{grid-column:2;font-size:19px;line-height:1.4;margin:0 0 7px}.news-card:not(:first-child) p{grid-column:2;font-size:13px;line-height:1.7}.about-panel{border-radius:24px}.about-photo{border-radius:15px}.culture-card{border-radius:24px;background:#eff7ff}.culture-list b{color:var(--orange)}.product-card{border-radius:16px}.product-contact{display:inline-flex;margin-top:10px;background:#fff3e6;border-radius:5px;padding:3px 9px}.video-image{border-radius:12px}.advice-strip{border-radius:20px;background:linear-gradient(110deg,#17356f,#315ca3);border-left:4px solid var(--orange)}.contact-button,.text-button{border-radius:8px}.site-footer{border-radius:24px;background:linear-gradient(120deg,#18366c,#244c8b);color:#e5effc;border-color:#ffffff55}.site-footer .footer-logo{filter:brightness(0) invert(1)}.footer-name,.footer-socials{color:#fff}.footer-contact{color:#d8e5f8}.footer-heading{background:none;padding:0 0 12px;border-radius:0;border-bottom:1px solid #6682ae;font-size:18px}.footer-list{padding:0;color:#d8e5f8}.footer-list a:hover{color:white}.footer-socials .social-link:hover{background:#ffffff20}.search-panel{border-radius:15px}
@media(max-width:1150px){.news-card:not(:first-child){grid-template-columns:115px minmax(0,1fr);column-gap:12px}.news-card:not(:first-child) h3{font-size:18px}.news-card:first-child h3{font-size:23px}}
@media(max-width:900px){.news-grid{grid-template-columns:1fr;gap:23px}.news-card:first-child{grid-row:auto}.news-card:first-child .news-img{aspect-ratio:2.1}.news-card:not(:first-child){grid-template-columns:160px minmax(0,1fr)}.news-card:not(:first-child) h3{font-size:21px}.news-card:not(:first-child) .news-img{min-height:140px}.news-card:not(:first-child) p{font-size:14px}.news-card:not(:first-child) .news-label{font-size:11px}.category-card::before{left:13px;top:9px;font-size:10px}.category-copy{padding-top:25px}.category-heading h2{font-size:16px}}
@media(max-width:650px){.brand-inner{min-height:91px}.main-nav{box-shadow:0 4px 13px #12316c26}.menu-toggle{color:white}.nav-hotline{color:#fff}.nav-list{background:#fff}.nav-link{color:var(--blue)}.nav-link.active{color:white}.product-toggle{color:var(--blue)!important}.nav-item.open>.product-toggle{color:white!important}.nav-link.active::after{display:none}.glass-shell{border-radius:21px;padding-top:13px}.hero{border-radius:12px;border-top-width:2px}.hero-bar{padding-inline:13px}.hero-bar .social-link{width:27px;height:27px;margin-right:4px}.hero-bar .social-link .icon{width:15px;height:15px}.hero-bar .social-link.zalo{font-size:9px}.category-heading{margin:19px 2px 12px;gap:11px;align-items:flex-start}.category-heading>span{font-size:9px;letter-spacing:0;line-height:1.6;padding-left:7px;margin-top:1px}.category-heading h2{font-size:13px;line-height:1.5}.category-card{border-radius:13px}.category-card::before{left:10px;top:8px;font-size:9px}.category-copy{padding-top:27px}.category-copy h2{font-size:20px}.category-card.photo-card .category-copy{width:87%}.category-tag{display:none!important}.panel,.about-panel,.culture-card{border-radius:19px}.news-card:first-child .news-img{aspect-ratio:16/9}.news-card:first-child h3,.news-card:not(:first-child) h3{font-size:21px;line-height:1.45;margin:11px 0 7px}.news-card:not(:first-child){display:block}.news-card:not(:first-child) .news-img{aspect-ratio:16/9;height:auto;min-height:0;border-radius:10px}.news-card:not(:first-child) .news-label{margin-bottom:8px;font-size:11px}.news-card:not(:first-child) p{font-size:14px}.section-head h2{padding-left:11px}.section-head h2::before{top:4px;bottom:3px}.site-footer{border-radius:20px}.product-card{border-radius:12px}.product-contact{font-size:10px;padding:3px 7px}.advice-strip{border-radius:17px}.footer-heading{padding-bottom:10px}}
@media(max-width:370px){.category-copy h2{font-size:18px}.category-heading h2{font-size:12px}.category-heading>span{font-size:8px}.category-heading{gap:8px}.category-copy{width:67%}.category-products{left:59%;right:-5%}.hero-bar .social-link{margin-right:2px}}
.product-toggle:hover,.nav-item:focus-within>.product-toggle,.nav-item.open>.product-toggle{background:#23458e!important;color:#fff!important}

/* TDC: chi giu mot san pham trong o Thuoc sinh hoc. */
.category-card:first-child .category-products img + img { display: none !important; }
.category-card:first-child .category-products { left: 48%; right: 2%; }
.category-card:first-child .category-products img:first-child { width: 100%; height: 88%; object-fit: contain; transform: none; }

/* TDC: moi o danh muc san pham chi hien thi mot anh. */
.category-card .category-products img + img { display: none !important; }
.category-card .category-products { left: 48%; right: 2%; }
.category-card .category-products img:first-child { width: 100%; height: 88%; object-fit: contain; transform: none; }