:root{
  --deep:#16233E; --deep-2:#111B30; --deep-3:#0C1322;
  --brand:#C9A455; --gold:#D9C08A;
  --cream:#F8F5EE; --mint:#F1EDE2;
  --ink:#1C2333; --ink-soft:#5A6172; --line:#E5E0D2;
  --font:'Be Vietnam Pro',-apple-system,BlinkMacSystemFont,sans-serif;
  --script:'Dancing Script',cursive;
  --wrap:1280px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:#fff;line-height:1.6;font-size:16.5px;-webkit-font-smoothing:antialiased}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3{font-weight:800;letter-spacing:-.015em;line-height:1.15;text-wrap:balance}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
.brocade{position:absolute;inset:0;opacity:.15;pointer-events:none;
 background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='96' height='96' viewBox='0 0 96 96'%3E%3Cg fill='none' stroke='%23D9C08A' stroke-width='1'%3E%3Cpath d='M48 10 C57 24 57 38 48 48 C39 38 39 24 48 10z'/%3E%3Cpath d='M48 86 C57 72 57 58 48 48 C39 58 39 72 48 86z'/%3E%3Cpath d='M10 48 C24 57 38 57 48 48 C38 39 24 39 10 48z'/%3E%3Cpath d='M86 48 C72 57 58 57 48 48 C58 39 72 39 86 48z'/%3E%3Ccircle cx='48' cy='48' r='2.5'/%3E%3Cpath d='M0 6 Q6 6 6 0 M90 0 Q90 6 96 6 M96 90 Q90 90 90 96 M6 96 Q6 90 0 90'/%3E%3C/g%3E%3C/svg%3E");
 background-size:96px 96px}

.tbar{background:var(--deep-2);color:#E5DFC9;font-size:13px}
.tbar__row{display:flex;justify-content:space-between;align-items:center;height:38px;gap:16px}
.tbar a:hover{color:#fff}
.tbar__r{display:flex;gap:20px}
.hdr{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:60}
.hdr__row{display:flex;align-items:center;justify-content:space-between;height:80px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:900;color:var(--deep)}
.brand img{height:44px}
.brand em{font-style:normal;color:var(--brand)}
.menu{display:flex;gap:24px;font-size:13.5px;font-weight:600;text-transform:uppercase}
.menu a{padding:6px 0;border-bottom:2.5px solid transparent;transition:.2s;white-space:nowrap}
.menu a:hover,.menu a.on{color:var(--deep);border-color:var(--brand)}
.btn{display:inline-flex;align-items:center;gap:9px;padding:14px 28px;font-weight:700;font-size:14.5px;border-radius:999px;cursor:pointer;border:2px solid transparent;transition:.2s;font-family:inherit}
.btn--p{background:var(--brand);color:#1F1808;border-color:var(--brand)}
.btn--p:hover{background:#D9B96E;border-color:#D9B96E}
.btn--o{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn--o:hover{background:#fff;color:var(--deep)}
.btn--d{background:var(--deep);color:#fff;border-color:var(--deep)}
.btn--d:hover{background:var(--deep-2);border-color:var(--deep-2)}

/* HERO — hệ sinh thái sản phẩm */
.hero{position:relative;background:linear-gradient(115deg,var(--deep-3) 0%,var(--deep) 52%,#24365C 100%);overflow:hidden;padding:64px 0 72px}
.hero__in{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1.05fr;gap:44px;align-items:center}
.hero__eb{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);border:1px solid rgba(247,206,115,.5);color:var(--gold);font-size:12.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:7px 16px;border-radius:999px;margin-bottom:18px}
.hero__eb svg{width:14px;height:14px}
.hero__s{font-family:var(--script);font-size:clamp(2.6rem,4.8vw,3.8rem);color:var(--gold);font-weight:700;line-height:1.05;margin-bottom:4px}
.hero h1{font-size:clamp(1.9rem,3.2vw,2.6rem);color:#fff;margin-bottom:16px}
.hero p{font-size:16.5px;color:#DDD5BE;max-width:46ch;margin-bottom:26px}
.hero__cta{display:flex;gap:13px;flex-wrap:wrap}
.hero__proof{display:flex;gap:22px;margin-top:30px;padding-top:22px;border-top:1px solid rgba(247,206,115,.3);flex-wrap:wrap}
.hp__n{font-size:19px;font-weight:900;color:var(--gold);line-height:1.1}
.hp__l{font-size:12px;color:#B3A883;margin-top:2px}

/* vườn sản phẩm — collage */
.zoo{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.zoo__c{background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 12px 30px rgba(0,0,0,.24);transition:transform .3s}
.zoo__c:hover{transform:translateY(-6px) scale(1.03);z-index:3}
.zoo__c img{width:100%;aspect-ratio:1;object-fit:cover}
.zoo__c:nth-child(2){transform:translateY(-18px)}
.zoo__c:nth-child(2):hover{transform:translateY(-24px) scale(1.03)}
.zoo__c:nth-child(5){transform:translateY(-18px)}
.zoo__c:nth-child(5):hover{transform:translateY(-24px) scale(1.03)}
.zoo__c:nth-child(8){transform:translateY(-18px)}
.zoo__c:nth-child(8):hover{transform:translateY(-24px) scale(1.03)}
.zoo__cap{position:absolute;left:50%;bottom:-30px;transform:translateX(-50%);white-space:nowrap;font-size:12.5px;color:#B3A883}

.sec{padding:74px 0}
.sec--cream{background:var(--cream)}
.sec__t{text-align:center;margin-bottom:42px}
.sec__lab{font-size:12.5px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--brand);display:block;margin-bottom:10px}
.sec__t h2{font-size:clamp(1.8rem,3vw,2.4rem);color:var(--deep)}
.sec__t p{color:var(--ink-soft);max-width:64ch;margin:14px auto 0;font-size:15.5px}
.sec__t--on h2{color:#fff}
.sec__t--on p{color:#DDD5BE}

.tools{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:20px}
.tool{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;display:flex;flex-direction:column;gap:12px;transition:.25s}
.tool:hover{border-color:var(--brand);box-shadow:0 16px 38px rgba(22,35,62,.13);transform:translateY(-3px)}
.tool__ic{width:46px;height:46px;border-radius:12px;background:var(--mint);color:var(--deep);display:flex;align-items:center;justify-content:center;flex:none}
.tool__ic svg{width:24px;height:24px}
.tool h3{font-size:17px}
.tool p{font-size:14px;color:var(--ink-soft);line-height:1.6}
.tool__go{margin-top:auto;font-size:13.5px;font-weight:700;color:var(--brand);display:flex;align-items:center;gap:6px}
.tool--calc{grid-row:span 2;background:linear-gradient(150deg,var(--deep-3),var(--deep));border-color:transparent;color:#fff;position:relative;overflow:hidden}
.tool--calc .tool__in{position:relative;z-index:2;display:flex;flex-direction:column;gap:12px;height:100%}
.tool--calc .tool__ic{background:rgba(255,255,255,.16);color:var(--gold)}
.tool--calc h3{color:#fff;font-size:19px}
.tool--calc p{color:#DDD5BE}
.calc__f{display:flex;flex-direction:column;gap:8px;margin-top:6px}
.calc__f label{font-size:12.5px;font-weight:700;color:var(--gold);text-transform:uppercase}
.calc__f input{font-family:inherit;font-size:15px;padding:13px 14px;border-radius:10px;border:1.5px solid rgba(255,255,255,.3);background:rgba(255,255,255,.1);color:#fff}
.calc__f input::-webkit-calendar-picker-indicator{filter:invert(1) opacity(.7)}
.calc__btn{margin-top:4px;width:100%;justify-content:center}
.calc__out{margin-top:12px;background:rgba(255,255,255,.12);border:1px solid rgba(247,206,115,.4);border-radius:12px;padding:16px;display:none}
.calc__out.on{display:block}
.calc__d{font-size:24px;font-weight:900;color:var(--gold);font-variant-numeric:tabular-nums;margin-bottom:6px}
.calc__m{font-size:13.5px;color:#DDD5BE;line-height:1.55}
.calc__note{font-size:11.5px;color:#B3A883;margin-top:10px;line-height:1.5}

.sec--prod{position:relative;background:var(--deep);overflow:hidden}
.prods{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pc{background:#fff;border-radius:14px;overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.pc:hover{transform:translateY(-6px);box-shadow:0 20px 44px rgba(0,0,0,.3)}
.pc__m{aspect-ratio:1;background:#F4F1E8;overflow:hidden}
.pc__m img{width:100%;height:100%;object-fit:cover}
.pc__b{padding:15px 17px 17px;display:flex;flex-direction:column;gap:7px;flex:1}
.pc__n{font-size:14.5px;font-weight:700;line-height:1.4;min-height:40px}
.pc__p{font-size:17px;font-weight:900;color:var(--deep);font-variant-numeric:tabular-nums;margin-top:auto}
.prods__f{position:relative;z-index:2;text-align:center;margin-top:38px}

/* về + chứng nhận */
.about{position:relative;background:linear-gradient(115deg,var(--deep-3),var(--deep) 60%,#24365C);overflow:hidden;padding:64px 0;color:#fff}
.about__in{position:relative;z-index:2}
.about__top{max-width:64ch;margin:0 auto 40px;text-align:center}
.about h2{color:#fff;font-size:clamp(1.5rem,2.5vw,2rem);margin-bottom:14px}
.about p{color:#DDD5BE;font-size:15.5px;line-height:1.75}
.about strong{color:var(--gold);font-weight:700}
.certs{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.cert{background:rgba(255,255,255,.1);border:1px solid rgba(247,206,115,.34);border-radius:14px;padding:20px 18px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:10px}
.cert__ic{width:36px;height:36px;color:var(--gold)}
.cert__y{font-size:11.5px;font-weight:800;letter-spacing:.1em;color:var(--brand)}
.cert__t{font-size:13.5px;font-weight:700;line-height:1.45}

/* báo chí */
.press{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:22px}
.pr{background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:12px;padding:22px;display:flex;flex-direction:column;gap:9px;transition:.25s}
.pr:hover{border-left-color:var(--deep);box-shadow:0 14px 32px rgba(22,35,62,.12);transform:translateY(-3px)}
.pr__o{font-size:12.5px;font-weight:900;letter-spacing:.06em;color:var(--deep);text-transform:uppercase}
.pr__t{font-size:15.5px;font-weight:700;line-height:1.45;color:var(--ink)}
.pr__d{font-size:12.5px;color:#948C78;margin-top:auto;padding-top:4px;display:flex;align-items:center;gap:6px}
.tvc{background:linear-gradient(100deg,var(--deep-2),var(--deep));border-radius:14px;padding:24px 26px;display:flex;align-items:center;gap:18px;color:#fff;flex-wrap:wrap;position:relative;overflow:hidden}
.tvc__in{position:relative;z-index:2;display:flex;align-items:center;gap:18px;flex-wrap:wrap;width:100%}
.tvc__ic{width:44px;height:44px;flex:none;color:var(--gold)}
.tvc__t{font-size:16.5px;font-weight:800}
.tvc__s{font-size:14px;color:#DDD5BE;margin-top:3px}
.tvc__ch{margin-left:auto;display:flex;gap:8px}
.chip{background:rgba(255,255,255,.16);border:1px solid rgba(247,206,115,.4);color:var(--gold);font-size:13px;font-weight:800;padding:8px 16px;border-radius:999px}

.kn{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.kc{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;display:flex;flex-direction:column;transition:.25s}
.kc:hover{border-color:var(--brand);box-shadow:0 14px 34px rgba(22,35,62,.12)}
.kc__m{aspect-ratio:16/10;overflow:hidden;background:#EFEBDF}
.kc__m img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.kc:hover .kc__m img{transform:scale(1.05)}
.kc__ph{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#EAE4D2,#D8D0B8)}
.kc__ph svg{width:40px;height:40px;color:#A79B78}
.kc__b{padding:19px;display:flex;flex-direction:column;gap:8px;flex:1}
.kc__tag{font-size:11.5px;font-weight:800;letter-spacing:.09em;text-transform:uppercase;color:var(--brand)}
.kc__t{font-size:15.5px;font-weight:700;line-height:1.42}
.kc__d{font-size:12.5px;color:#948C78;margin-top:auto;padding-top:6px}

.revs{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.rev{position:relative;background:var(--deep);border-radius:16px;padding:26px;color:#fff;overflow:hidden}
.rev__in{position:relative;z-index:2}
.rev__st{color:var(--brand);letter-spacing:2px;margin-bottom:11px}
.rev__x{font-size:14.5px;color:#E9E2CC;line-height:1.7;margin-bottom:16px}
.rev__w{display:flex;align-items:center;gap:11px}
.rev__av{width:40px;height:40px;border-radius:50%;background:var(--brand);color:#1F1808;display:flex;align-items:center;justify-content:center;font-weight:900;flex:none}
.rev__nm{font-size:14px;font-weight:700}
.rev__lo{font-size:12.5px;color:#B3A883}

.cband{position:relative;background:linear-gradient(100deg,var(--deep-2),var(--deep));overflow:hidden;padding:60px 0}
.cband__in{position:relative;z-index:2;display:flex;justify-content:space-between;align-items:center;gap:34px;flex-wrap:wrap}
.cband h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2.1rem);max-width:20ch}
.cband p{color:#DDD5BE;margin-top:9px;max-width:44ch;font-size:15px}

.ft{background:#0A0F1C;color:#C9C4B4;padding:56px 0 24px;font-size:14.5px}
.ft__g{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px;margin-bottom:36px}
.ft .brand{color:#fff}
.ft__x{margin-top:13px;line-height:1.7;max-width:36ch;color:#A8A395}
.ft h4{color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:.1em;margin-bottom:15px}
.ft ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.ft ul a,.ft ul li{color:#A8A395}
.ft ul a:hover{color:var(--brand)}
.ft__b{border-top:1px solid #232B3E;padding-top:18px;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;font-size:13px;color:#948C78}
.note{background:#FAF8F0;border-bottom:1px solid #E3DBC2;color:#6E5A22;font-size:13.5px;text-align:center;padding:10px 20px}

@media(max-width:1000px){
  .menu,.tbar__r{display:none}
  .hero__in{grid-template-columns:1fr;gap:36px}
  .tools{grid-template-columns:1fr 1fr}
  .tool--calc{grid-row:auto;grid-column:span 2}
  .prods{grid-template-columns:repeat(2,1fr)}
  .certs{grid-template-columns:repeat(2,1fr)}
  .kn,.revs,.press{grid-template-columns:1fr}
  .ft__g{grid-template-columns:1fr 1fr}
  .tvc__ch{margin-left:0;width:100%}
}
@media(max-width:620px){
  .wrap{padding:0 18px}
  .tools,.prods,.certs{grid-template-columns:1fr}
  .tool--calc{grid-column:auto}
  .zoo{grid-template-columns:repeat(3,1fr);gap:8px}
  .sec{padding:50px 0}
  .ft__g{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}


/* HERO v5 — khu rừng linh vật (nền ảnh, chờ thay video) */
.hero{position:relative;min-height:560px;display:flex;align-items:center;overflow:hidden;background:#0C1322}
.hero__vid{position:absolute;inset:0}
.hero__vid img,.hero__vid video{width:100%;height:100%;object-fit:cover;object-position:center right}
.hero__play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:3;width:76px;height:76px;border-radius:50%;background:rgba(255,255,255,.9);display:flex;align-items:center;justify-content:center;box-shadow:0 10px 30px rgba(0,0,0,.3);opacity:.55}
.hero__play svg{width:30px;height:30px;color:#16233E;margin-left:4px}
.hero__scrim{position:absolute;inset:0;background:linear-gradient(100deg,rgba(12,19,34,.9) 0%,rgba(12,19,34,.72) 30%,rgba(22,35,62,.28) 52%,transparent 68%)}
.hero__wrap{position:relative;z-index:2;width:100%}
.hero__in{display:block!important;max-width:560px;color:#fff;padding:60px 0}
.hero__s{font-family:var(--script);font-size:clamp(2.6rem,4.8vw,3.8rem);color:var(--gold);font-weight:700;line-height:1.02;margin-bottom:8px}
.hero h1{font-size:clamp(1.9rem,3.2vw,2.7rem);color:#fff;margin-bottom:16px}
.hero p{font-size:16.5px;color:#DDD5BE;max-width:44ch;margin-bottom:28px}
.hero__cta{display:flex;gap:13px;flex-wrap:wrap}
.hero__tag{display:inline-block;margin-top:26px;font-size:13px;color:#D9C08A;background:rgba(255,255,255,.1);border:1px solid rgba(247,206,115,.35);padding:8px 16px;border-radius:999px}
@media(max-width:900px){.hero__scrim{background:linear-gradient(180deg,rgba(12,19,34,.55),rgba(12,19,34,.92))}.hero__vid img{object-position:center}.hero{min-height:auto}.hero__in{padding:44px 0}}