:root{--brand:#173d43;--brand-dark:#102d32;--link-hover:#965d0a;--link-accent:#edc375}
.skip-link{position:fixed;top:-80px;left:16px;z-index:200;background:#fff;padding:12px;color:#102d32}.skip-link:focus{top:10px}
.site-header .brand-icon{background:#173d43;box-shadow:none;border-radius:8px}.site-header .navbar-brand{font-size:1.08rem}.site-header .nav-link{padding:.5rem .7rem!important}.header-search input{max-width:190px}
.oil-home{color:#172c30;background:#fff}.oil-home h1,.oil-home h2,.oil-home h3{font-weight:800;letter-spacing:-.04em}.oil-home a:focus-visible,summary:focus-visible{outline:3px solid #b67708;outline-offset:5px}
/* Full-width journey photograph with a readable text area. */
.oil-hero{position:relative;isolation:isolate;background:#102e34;color:#fff;padding:72px 0;overflow:hidden;min-height:580px;display:flex;align-items:center}
.oil-hero-media{position:absolute;inset:0;z-index:-1;pointer-events:none}
.oil-hero-media img{width:100%;height:100%;object-fit:cover;object-position:70% top}
.oil-hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,35,40,.96) 0%,rgba(10,35,40,.87) 28%,rgba(10,35,40,.57) 47%,rgba(10,35,40,.08) 70%,transparent 100%)}
.oil-hero-grid{display:block}.oil-hero-copy{width:54%;max-width:650px}
.oil-kicker{display:block;font-size:.72rem;font-weight:700;letter-spacing:.15em;margin-bottom:18px;color:#526b6d}.oil-hero .oil-kicker{color:#e5bb62}.oil-hero h1{font-size:clamp(2.5rem,3.6vw,3.8rem);line-height:1.12;margin:0 0 24px}.oil-hero h1 em{font-style:normal;color:#eac16e}.oil-hero-copy>p{font-size:1.04rem;color:#e0e9e8;max-width:510px;line-height:1.8}.oil-actions{display:flex;gap:24px;align-items:center;flex-wrap:wrap;margin-top:30px}.oil-button{display:inline-flex;align-items:center;justify-content:center;gap:24px;background:#edc375;color:#142e33!important;padding:15px 21px;border-radius:5px;font-weight:700}.oil-button:hover{background:#ffda93}.oil-text-link{color:#fff!important;font-size:.9rem}.oil-hero-note{display:flex;align-items:center;gap:8px;font-size:.76rem;color:#d4e1df;margin-top:35px;flex-wrap:wrap}.oil-hero-note span{width:1px;height:13px;background:#698184;margin:0 8px}
.oil-service-strip{border-bottom:1px solid #e3e9e7;background:#f6f7f4}.oil-service-strip>.container{display:grid;grid-template-columns:repeat(4,1fr)}.oil-service-strip a{display:flex;gap:15px;align-items:center;padding:24px 15px;color:#263e41;font-size:.85rem;font-weight:700}.oil-service-strip i{font-size:1.5rem}.oil-service-strip small{display:block;font-weight:400;font-size:.72rem;color:#637674;margin-top:4px}
.oil-section{padding:66px 0}.oil-heading{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}.oil-heading h2,.oil-guide h2,.oil-faq h2{font-size:clamp(1.7rem,3vw,2.55rem);margin:0;line-height:1.2}.oil-heading .oil-kicker{margin-bottom:10px}.oil-heading>a{font-size:.85rem;font-weight:600;white-space:nowrap}.oil-categories{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}.oil-categories>a{position:relative;display:block;padding:26px;border:1px solid #dce5e1;border-radius:8px;background:#fafbf9;color:#183b40}.oil-categories>a:hover{background:#edf1eb}.oil-cat-number{font-size:.7rem;color:#75827e}.oil-categories>a>i:not(.oil-cat-arrow){display:block;font-size:2rem;margin:18px 0}.oil-categories h3{font-size:1.05rem}.oil-categories small{color:#667772}.oil-cat-arrow{position:absolute;right:24px;top:24px}
.oil-products{background:#f5f6f2}.oil-home .product-card{border:1px solid #e1e6e0;box-shadow:none;border-radius:9px}.oil-home .product-img-wrap{background:#fff}.oil-home .product-img-wrap img{object-fit:contain}.oil-home .product-price{color:#153c41}.oil-home .product-name{font-size:.96rem}.oil-home .badge-feat{background:#173d43}.oil-guide{display:grid;grid-template-columns:1fr 1.1fr;gap:70px;border:1px solid #dce5e1;padding:48px;border-radius:12px}.oil-guide p{color:#647673;line-height:1.8;margin:20px 0 25px}.oil-guide ol{list-style:none;padding:0;margin:0}.oil-guide li{display:flex;gap:22px;padding:21px 0;border-bottom:1px solid #e4e9e4}.oil-guide li:first-child{padding-top:0}.oil-guide li:last-child{border:0;padding-bottom:0}.oil-guide li>span{color:#987024;font-size:.85rem;font-weight:700}.oil-guide h3{font-size:1.08rem;margin:0}.oil-guide li p{font-size:.89rem;margin:7px 0 0}
.oil-about{background:#eaf0eb}.oil-about .oil-heading>p{max-width:430px;color:#526b64;line-height:1.9}.oil-about-links{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid #cbd9ce;margin-top:32px}.oil-about-links a{padding:24px 15px 0 0;display:flex;justify-content:space-between;gap:10px;font-size:.86rem;font-weight:600}.oil-about-links a+a{padding-left:24px}
.oil-faq{max-width:850px}.oil-faq h2{margin-bottom:28px}.oil-faq details{border-bottom:1px solid #dce5e1;padding:20px 0}.oil-faq summary{font-weight:600;cursor:pointer;line-height:1.7}.oil-faq details p{color:#596e68;margin:15px 0 0;line-height:1.85}
.site-footer{background:#102e34;color:#c8d8d6;padding-top:55px}.site-footer h5,.site-footer h6{color:#fff}.site-footer a{color:#c8d8d6}.site-footer a:hover{color:#edc375}.site-footer li{margin-bottom:10px}.site-footer .copyright{color:#9fb9b7}.legal-layout{max-width:1000px;margin:0 auto;padding:48px 20px 70px}.legal-nav{display:flex;flex-wrap:wrap;gap:8px;margin:25px 0}.legal-nav a{background:#eff3ef;padding:10px 14px;border-radius:5px;font-size:.85rem}.legal-nav a[aria-current=page]{background:#173d43;color:#fff}.legal-content{max-width:780px;line-height:1.9}.legal-content h2{font-size:1.3rem;margin-top:30px}.legal-content p{white-space:pre-line}
@media(max-width:991px){.oil-hero{padding:52px 0;min-height:530px}.oil-hero-copy{width:58%}.oil-hero h1{font-size:2.7rem}.oil-hero-media img{object-position:64% top}.oil-guide{gap:30px;padding:30px}.oil-service-strip>.container{grid-template-columns:repeat(2,1fr)}.header-search input{max-width:none}}
@media(max-width:767px){.oil-hero{display:block;min-height:0;padding:300px 0 36px}.oil-hero-media{bottom:auto;height:345px}.oil-hero-media img{object-position:86% center}.oil-hero-media::after{background:linear-gradient(180deg,transparent 45%,rgba(16,46,52,.22) 63%,#102e34 100%)}.oil-hero-copy{width:100%;max-width:none}.oil-hero h1{font-size:clamp(2rem,6.6vw,2.6rem)}.oil-hero-copy>p{font-size:.95rem;max-width:540px}.oil-actions{gap:20px;margin-top:24px}.oil-hero-note{margin-top:24px}.oil-section{padding:42px 0}.oil-heading{align-items:start;flex-direction:column;gap:15px}.oil-guide{grid-template-columns:1fr;padding:25px;gap:30px}.oil-about-links{grid-template-columns:1fr}.oil-about-links a+a{padding-left:0}.oil-service-strip a{padding:18px 6px;gap:10px;font-size:.76rem}.oil-service-strip small{font-size:.65rem}.oil-service-strip i{font-size:1.2rem}.oil-categories{grid-template-columns:repeat(2,minmax(0,1fr))}.oil-categories>a{padding:20px}.oil-categories h3{font-size:.95rem}.oil-home .product-body{padding:13px}.site-header .brand-text{max-width:185px;white-space:normal}.oil-about .oil-heading>p{margin:0}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}

.oil-home .oil-products .product-img-wrap{height:260px;aspect-ratio:auto}.oil-home .oil-products .product-img-wrap img{height:100%;width:100%;object-fit:contain}@media(max-width:767px){.oil-home .oil-products .product-img-wrap{height:190px}}


.site-footer{padding-bottom:24px}
.site-footer p,.site-footer ul{font-size:.9375rem;line-height:1.7}
.site-footer h6{font-size:1rem;letter-spacing:0;margin-bottom:16px}
.site-footer .footer-brand i{color:#edc375}
.site-footer .footer-business h6{margin:0 0 18px}
.site-footer .footer-business-list{list-style:none;padding:0;margin:0;display:grid;gap:14px}
.site-footer .footer-business-item{display:flex;align-items:flex-start;gap:12px;margin:0}
.footer-business-icon{flex:0 0 20px;width:20px;display:flex;justify-content:center;color:#edc375;font-size:1.0625rem;line-height:1.65}
.footer-business-detail{min-width:0;flex:1}
.footer-business-label{color:#c8d8d6;font-size:.875rem;line-height:1.65}
.footer-business-label:not(.visually-hidden)::after{content:': ';white-space:pre}
.site-footer .footer-business-value{color:#e4eeec;font-size:.9375rem;line-height:1.7;overflow-wrap:anywhere}
.site-footer a.footer-business-value{display:inline-block;padding:3px 0;min-height:32px}
.site-footer a.footer-business-value:hover{color:#edc375;text-decoration:underline;text-underline-offset:4px}
.site-footer a:focus-visible{outline:2px solid #edc375;outline-offset:4px;border-radius:3px}
.site-footer .footer-business-name .footer-business-value{color:#fff;font-weight:600}
.site-footer hr{border-color:rgba(200,216,214,.18);margin:28px 0 18px}
.site-footer .copyright{font-size:.8125rem;line-height:1.7}
@media(max-width:575px){.site-footer{padding-top:32px}.site-footer .row{row-gap:28px!important}.site-footer .list-unstyled{margin-bottom:0}.site-footer .list-unstyled li{margin-bottom:4px}.site-footer .list-unstyled a{display:inline-block;padding:6px 0}.site-footer .footer-brand{font-size:1.125rem}.site-footer .copyright{max-width:310px;margin:0 auto}}

@media(min-width:992px){.site-footer .footer-columns>div:nth-child(1){width:33%}.site-footer .footer-columns>div:nth-child(2){width:17%}.site-footer .footer-columns>div:nth-child(3){width:20%}.site-footer .footer-columns>div:nth-child(4){width:30%}}



/* Consistent pointer and keyboard feedback across the public storefront. */
:where(.site-header,.site-main,.site-footer) a{transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease;text-underline-offset:4px}
:where(.site-header,.site-main,.site-footer) a:focus-visible{outline:3px solid var(--link-accent);outline-offset:4px}
.site-main a:not(.btn):not(.oil-button):is(:hover,:focus-visible){color:var(--link-hover)}
.site-header .nav-link{border-radius:6px}
.site-header .nav-link:is(:hover,:focus-visible){color:var(--link-hover)!important;background:#fff2d9}
.site-header .nav-link.active:is(:hover,:focus-visible)::after{background:var(--link-hover)}
.site-header .navbar-brand:is(:hover,:focus-visible){color:var(--link-hover)!important}
.site-header .brand-icon{transition:color .2s ease,background-color .2s ease}
.site-header .navbar-brand:is(:hover,:focus-visible) .brand-icon{background:var(--link-accent);color:var(--brand-dark)}
.site-header .cart-link:is(:hover,:focus-visible){background:var(--link-accent);color:var(--brand-dark)}
.oil-home .oil-button:is(:hover,:focus-visible){background:#fff0c4;color:#704504!important;box-shadow:0 5px 18px #061d2526}
.oil-hero .oil-text-link:is(:hover,:focus-visible){color:#ffda93!important;text-decoration:underline}
.oil-service-strip a:is(:hover,:focus-visible){background:#173d43;color:#ffda93!important}
.oil-service-strip a:is(:hover,:focus-visible) small{color:#e0e9e8}
.oil-categories>a:is(:hover,:focus-visible){background:#fff3dc;border-color:#d5a649;color:#87520a!important;box-shadow:0 5px 16px #173d4310}
.oil-categories>a:is(:hover,:focus-visible) :is(small,.oil-cat-number){color:#79551f}
.oil-about-links a:is(:hover,:focus-visible){background:#f6ecd7;color:#87520a}
.oil-heading>a:is(:hover,:focus-visible),.oil-faq a:is(:hover,:focus-visible),.legal-content a:is(:hover,:focus-visible),.product-name a:is(:hover,:focus-visible){text-decoration:underline}
.legal-nav a:is(:hover,:focus-visible){background:#ffe9ba;color:#754807}
.site-main .product-img-wrap:is(:hover,:focus-visible){box-shadow:inset 0 0 0 3px #edc375}
.site-main .product-card:has(a:is(:hover,:focus-visible)){border-color:#d5a649}
.site-main .product-card:has(.product-img-wrap:is(:hover,:focus-visible)) .product-name a{color:var(--link-hover)}
.site-main .quick-action-btn:not(:disabled):is(:hover,:focus-visible){background:#edc375;color:#142e33;border-color:#d5a649}
.site-footer a:is(:hover,:focus-visible),.site-footer a.footer-business-value:is(:hover,:focus-visible){color:#ffda93;text-decoration:underline}
.site-main .btn-primary:not(:disabled):not(.disabled):is(:hover,:focus-visible){background:#965d0a;border-color:#965d0a;color:#fff}
@media(max-width:359px){.oil-hero{padding-top:265px}.oil-hero-media{height:310px}.oil-actions{gap:16px}.oil-hero-note{font-size:.7rem;gap:6px}.oil-hero-note span{margin:0 3px}}


/* Fade only the photographs; copy and shopping links stay in place. */
.oil-hero-slide{position:absolute;inset:0;opacity:0;transition:opacity .85s ease}
.oil-hero-slide.is-active{opacity:1}
.oil-slider-controls{display:flex;align-items:center;gap:12px;margin-top:24px;width:max-content;max-width:100%}
.oil-slider-controls[hidden]{display:none}
.oil-slider-controls button{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;flex-shrink:0;padding:0;background:rgba(16,46,52,.5);border:1px solid #ffffff4d;border-radius:50%;color:#fff;cursor:pointer;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
.oil-slider-controls button:is(:hover,:focus-visible){background:#edc375;color:#142e33;border-color:#edc375}
.oil-slider-controls button:focus-visible{outline:2px solid #fff;outline-offset:3px}
.oil-slider-dots{display:flex;align-items:center;gap:0}
.oil-slider-dots .oil-slider-dot{width:32px;height:40px;background:transparent;border:0;border-radius:4px}
.oil-slider-dot::before{content:"";width:7px;height:7px;border-radius:10px;background:#ffffff70;transition:width .25s ease,background-color .2s ease}
.oil-slider-dot[aria-pressed="true"]::before{width:25px;background:#edc375}
.oil-slider-dot:is(:hover,:focus-visible)::before{background:#fff}
.oil-slider-count{font-size:.72rem;color:#d4e1df;font-variant-numeric:tabular-nums;letter-spacing:.08em}
.oil-slider-controls .oil-slider-pause{width:34px;height:34px;margin-left:0}
@media(max-width:767px){.oil-slider-controls{margin-top:22px;gap:8px}}

#chon-dau{background:#173d43;color:#fff}#chon-dau .oil-guide{border-color:#ffffff30;background:transparent}#chon-dau .oil-kicker,#chon-dau .oil-guide li>span{color:#edc375}#chon-dau .oil-guide h2,#chon-dau .oil-guide h3{color:#fff}#chon-dau .oil-guide p{color:#d9e6e5}#chon-dau .oil-guide li{border-bottom-color:#ffffff26}

.product-quantity{position:relative}.product-quantity label{position:absolute;top:-9px;left:12px;z-index:1;padding:0 6px;border-radius:4px;background:#fff5df;color:#173d43;font-size:12px;font-weight:700;line-height:18px}.product-quantity .form-control{min-height:50px;border:2px solid #173d43;background:#fff5df;color:#173d43;text-align:center;font-size:22px;font-weight:800;padding:8px 12px;box-shadow:0 2px 7px #173d4312}.product-quantity .form-control:focus{background:#fff9ed;border-color:#a97112;box-shadow:0 0 0 3px #edc37555}.product-quantity .form-control:disabled{background:#eef1ef;color:#788580;border-color:#b7c3bf}