:root{--navy:#071f3d;--navy2:#0a355d;--blue:#0a77e8;--sky:#eaf5ff;--text:#0a2540;--muted:#5d6b7b;--line:#dbe6ef;--white:#fff;--green:#19966a;--shadow:0 16px 50px rgba(7,42,74,.12)}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:76px}body{margin:0;color:var(--text);font-family:Manrope,Arial,sans-serif;background:#fff;font-size:15px;line-height:1.65}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}.container{width:min(1180px,calc(100% - 40px));margin-inline:auto}.skip-link{position:fixed;top:-100px;left:16px;z-index:200;background:#fff;color:#000;padding:10px 16px}.skip-link:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.site-header{height:76px;background:rgba(255,255,255,.97);position:sticky;top:0;z-index:100;border-bottom:1px solid 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1fr}.category{min-height:96px}.product-grid{grid-template-columns:repeat(2,1fr);gap:9px}.product-card{padding-inline:9px}.featured h2{font-size:34px}.why-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:1/-1}.copyright{flex-direction:column;gap:8px}.button-row .btn{flex:1;min-width:130px}.contact-inner .button-row{width:100%}.contact-inner .btn{flex:1}.section-heading h2{font-size:25px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

/* SBIM Design v2 — bám sát giao diện xanh–trắng đã chọn */
.container{width:min(1440px,calc(100% - 64px))}
.site-header{height:72px;box-shadow:0 2px 14px rgba(7,42,74,.07)}
.header-inner{gap:18px}
.brand-mark{width:40px;height:44px}.brand strong{font-size:20px;color:#0a3563}.brand small{font-size:6.5px;color:#153f68}
.site-nav{margin-left:auto}.site-nav a{padding-inline:11px;font-size:12px}
.header-search{height:38px;width:154px;border:1px solid #d6e3ef;border-radius:9px;display:flex;align-items:center;gap:7px;padding:0 10px;color:#0b4b80;background:#fff}
.header-search input{border:0;outline:0;width:100%;min-width:0;font-size:11px;color:var(--text)}
.login-btn{white-space:nowrap;gap:6px;box-shadow:0 5px 13px rgba(10,119,232,.2)}
.hero{padding:0;min-height:404px;background-image:linear-gradient(90deg,rgba(2,29,57,.98) 0%,rgba(4,48,88,.88) 35%,rgba(4,43,79,.28) 62%,rgba(4,33,60,.05) 100%),url('../images/hero-sbim-v2.png');background-size:cover;background-position:center center}
.hero:before{background:linear-gradient(180deg,transparent 75%,rgba(3,33,61,.18))}.hero-grid,.hero-visual{display:none}
.hero-inner{display:flex;align-items:center;min-height:404px;padding:36px 0;position:relative}
.hero-copy{width:min(650px,58%);position:relative;z-index:2}.hero .eyebrow{font-size:10px;letter-spacing:4px;color:#92d7ff;margin-bottom:12px}
.hero h1{font-size:47px;line-height:1.08;letter-spacing:-1.4px;margin-bottom:7px}.hero h2{font-size:24px;margin-bottom:10px}
.hero-copy>p:not(.eyebrow){font-size:15px;line-height:1.55;max-width:585px}.hero-actions{display:flex;gap:14px;margin-top:25px}.hero-actions .btn{min-height:46px;font-size:12px}.hero-video{background:rgba(6,32,58,.35);border-color:rgba(255,255,255,.85);backdrop-filter:blur(4px)}
.hero-note{position:absolute;right:1%;top:41px;margin:0;color:#072d55;font-family:Georgia,serif;font-size:20px;font-style:italic;line-height:1.55;transform:rotate(-7deg);text-align:center}
.benefit-bar{background:linear-gradient(90deg,#06325b,#0a416f 55%,#072c50);color:#fff;border-top:1px solid rgba(255,255,255,.1)}
.hero-benefits{margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:0}.hero-benefits span{min-height:84px;padding:17px 26px 14px 68px;position:relative;border-right:1px solid rgba(255,255,255,.15);display:flex;flex-direction:column;justify-content:center}.hero-benefits span:last-child{border-right:0}.hero-benefits i{position:absolute;left:20px;top:20px;font-size:31px}.hero-benefits b{font-size:12px}.hero-benefits small{font-size:10px;margin-top:2px;color:#c9d8e4}
.category-zone{background:#fff;padding:14px 0 5px}.category-strip{transform:none;padding:0;gap:10px}.category{border-radius:8px;min-height:98px;padding:13px 9px;background:linear-gradient(#f4f9fd,#eaf3fa);border:1px solid #e3edf5}.category.active{border-color:#0a77e8;background:linear-gradient(145deg,#0a8aff,#0865db)}.category span{font-size:27px}.category b{font-size:12px}.category small{font-size:9px}
.catalog.section{padding:20px 0 30px}.catalog .section-heading{margin-bottom:12px;align-items:center}.catalog .section-heading h2{font-size:27px}.catalog .section-heading .eyebrow{display:none}.search-box{width:410px;height:39px}.product-grid{gap:10px}.product-card{min-height:218px;padding:14px 11px 12px;border-color:#dbe7f1}.product-icon{height:60px;margin-bottom:3px;font-size:42px;color:#184f81}.product-card h3{font-size:14px;color:#082f5e}.product-card p{font-size:10.5px;margin-bottom:10px}.detail-btn{width:100%;max-width:126px;padding:6px 7px}
.featured{padding:30px 0;background:linear-gradient(105deg,#e4f3fe,#fff 52%,#e9f6ff)}.featured-grid{gap:28px}.featured h2{font-size:36px}.featured-screen{box-shadow:0 12px 28px rgba(7,47,80,.2)}.feature-list{padding:20px}.feature-list li{padding-block:4px}
.why{padding-block:30px}.why .section-heading{margin-bottom:16px}.why .section-heading h2{font-size:27px}.why .eyebrow{display:none}.why-grid article{align-items:center}.why-grid article>span{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:#eaf5ff}
.content-bands{padding:38px 0}.contact-band{padding:31px 0;background-image:linear-gradient(90deg,rgba(5,51,93,.97),rgba(4,39,71,.88)),url('../images/hero-sbim-v2.png');background-size:cover;background-position:center 30%}.site-footer{padding-top:38px}
@media(max-width:1180px){.container{width:min(100% - 40px,1080px)}.site-nav a{padding-inline:7px;font-size:10px}.header-search{display:none}.hero-note{display:none}.hero-copy{width:62%}.product-grid{grid-template-columns:repeat(6,1fr)}}
@media(max-width:900px){.container{width:min(100% - 32px,820px)}.nav-toggle{display:block;margin-left:auto}.site-nav{display:none;position:absolute;top:72px;left:0;right:0;height:auto;background:#fff;flex-direction:column;padding:10px 14px 18px;box-shadow:0 20px 35px rgba(3,30,54,.18)}.site-nav.open{display:flex}.site-nav a{padding:10px 14px;font-size:12px}.hero{background-position:62% center}.hero-copy{width:66%}.product-grid{grid-template-columns:repeat(4,1fr)}.category-strip{grid-template-columns:repeat(3,1fr)}}
@media(max-width:680px){.container{width:calc(100% - 28px)}.site-header{height:66px}.site-nav{top:66px}.hero{min-height:430px;background-position:60% center;background-image:linear-gradient(90deg,rgba(3,32,61,.98),rgba(3,43,78,.88) 62%,rgba(3,43,78,.48)),url('../images/hero-sbim-v2.png')}.hero-inner{min-height:430px;align-items:flex-end;padding-bottom:44px}.hero-copy{width:100%}.hero h1{font-size:39px}.hero h2{font-size:19px}.hero-copy>p:not(.eyebrow){font-size:13px;max-width:94%}.hero-actions{flex-wrap:wrap}.hero-actions .btn{padding-inline:16px}.hero-benefits{grid-template-columns:repeat(2,1fr)}.hero-benefits span{padding-left:58px;min-height:78px}.hero-benefits i{left:16px}.category-strip{grid-template-columns:repeat(2,1fr)}.catalog.section{padding-top:26px}.catalog .section-heading{align-items:flex-start}.search-box{width:100%}.product-grid{grid-template-columns:repeat(2,1fr)}.featured{padding:40px 0}.why{padding-block:40px}}
@media(max-width:430px){.brand strong{font-size:16px}.brand-mark{width:34px}.login-btn{display:none}.hero h1{font-size:33px}.hero-actions{gap:8px}.hero-actions .btn{width:100%}.hero-benefits span{padding:13px 10px 12px 48px}.hero-benefits i{font-size:25px;left:12px}.hero-benefits b{font-size:10px}.hero-benefits small{font-size:8px}.category{min-height:91px}.product-card{min-height:210px}}