/* ==========================================================================
   Trang triển lãm sản phẩm. Một bảng màu trung tính + một màu nhấn (xanh coban)
   cho trang chung; trang sản phẩm dùng màu thương hiệu riêng qua biến --sp-*.
   Hệ bo góc: khối lớn 28px, thẻ 20px, khung ảnh 14px, nút và chip bo tròn hẳn.
   ========================================================================== */
:root {
  --nen: #F4F4F1;
  --nen-2: #E9E9E4;
  --be-mat: #FCFCFA;
  --muc: #15161A;
  --chu-phu: #50525A;
  --vien: #D9D9D2;
  --nhan: #2B44E8;
  --nhan-chu: #FFFFFF;
  --nhan-nhat: #E3E7FD;
  --bong: 0 1px 2px rgb(21 22 26 / .06), 0 18px 40px -18px rgb(21 22 26 / .28);
  --bong-dt: 0 30px 60px -24px rgb(21 22 26 / .45);
  --chu-hien-thi: 'Bricolage Grotesque', 'Be Vietnam Pro', system-ui, sans-serif;
  --chu-than: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --rong-toi-da: 1240px;
  --le: clamp(16px, 4vw, 40px);
  --cao-dau-trang: 68px;
  --em-diu: cubic-bezier(.16, 1, .3, 1);
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --nen: #111216;
    --nen-2: #1A1B20;
    --be-mat: #17181D;
    --muc: #EDEDE8;
    --chu-phu: #A5A6AD;
    --vien: #2C2D33;
    --nhan: #8E9BFF;
    --nhan-chu: #0E1030;
    --nhan-nhat: #1D2147;
    --bong: 0 1px 2px rgb(0 0 0 / .3), 0 18px 40px -18px rgb(0 0 0 / .6);
    --bong-dt: 0 30px 60px -24px rgb(0 0 0 / .7);
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--cao-dau-trang) + 16px); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--nen); color: var(--muc);
  font: 400 1rem/1.65 var(--chu-than);
  text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--chu-hien-thi); font-weight: 700; letter-spacing: -.025em; line-height: 1.12; margin: 0; text-wrap: balance; }
p { margin: 0; }
.ic { width: 1.15em; height: 1.15em; flex: none; }
:focus-visible { outline: 3px solid var(--nhan); outline-offset: 3px; border-radius: 6px; }

.khung-rong { width: 100%; max-width: calc(var(--rong-toi-da) + 2 * var(--le)); margin-inline: auto; padding-inline: var(--le); }
.bo-qua { position: absolute; left: 16px; top: -60px; z-index: 30; background: var(--muc); color: var(--nen); padding: 10px 16px; border-radius: 999px; text-decoration: none; }
.bo-qua:focus { top: 12px; }

/* ---------- Đầu trang ---------- */
.dau-trang {
  position: sticky; top: 0; z-index: 20; height: var(--cao-dau-trang);
  background: color-mix(in srgb, var(--nen) 82%, transparent);
  backdrop-filter: saturate(160%) blur(14px); -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid color-mix(in srgb, var(--vien) 60%, transparent);
}
.dau-trang__trong { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.thuong-hieu { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-family: var(--chu-hien-thi); font-weight: 700; font-size: 1.08rem; letter-spacing: -.02em; white-space: nowrap; }
.bieu-trung {
  display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 10px;
  background: var(--muc); color: var(--nen); font-size: .82rem; font-weight: 800; letter-spacing: -.04em;
}
.dieu-huong { display: flex; gap: 4px; }
.dieu-huong a { text-decoration: none; font-weight: 500; font-size: .95rem; padding: 8px 14px; border-radius: 999px; color: var(--chu-phu); transition: color .2s, background-color .2s; }
.dieu-huong a:hover { color: var(--muc); background: var(--nen-2); }
@media (max-width: 560px) {
  .thuong-hieu span:last-child { display: none; }
  .dieu-huong a { padding: 8px 10px; font-size: .9rem; }
}

/* ---------- Nút ---------- */
.cum-nut { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 12px; }
.nut {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; white-space: nowrap;
  min-height: 46px; padding: 0 22px; border-radius: 999px; border: 1.5px solid transparent;
  font: 600 .98rem/1 var(--chu-than); text-decoration: none; cursor: pointer;
  transition: transform .25s var(--em-diu), background-color .2s, border-color .2s, color .2s, box-shadow .25s;
}
.nut:active { transform: translateY(1px) scale(.98); }
.nut .ic { transition: transform .25s var(--em-diu); }
.nut:hover .ic { transform: translateX(2px); }
.nut--lon { min-height: 54px; padding: 0 28px; font-size: 1.05rem; }
.nut--chinh { background: var(--sp-nut, var(--nhan)); color: var(--nhan-chu); box-shadow: 0 10px 24px -12px var(--sp-nut, var(--nhan)); }
[style*="--sp-nut"] .nut--chinh, .trang-sp .nut--chinh { color: #fff; }
.nut--chinh:hover { box-shadow: 0 14px 30px -12px var(--sp-nut, var(--nhan)); transform: translateY(-1px); }
.nut--vien { border-color: color-mix(in srgb, var(--muc) 22%, transparent); color: var(--muc); background: transparent; }
.nut--vien:hover { border-color: var(--muc); }
.nut--chu { padding-inline: 6px; min-height: 40px; color: var(--muc); }
.nut--chu:hover { text-decoration: underline; text-underline-offset: 4px; }

/* ---------- Khung thiết bị ---------- */
.khung-tdu { margin: 0; border-radius: 14px; overflow: hidden; background: var(--be-mat); border: 1px solid var(--vien); box-shadow: var(--bong); }
.khung-tdu__thanh { display: flex; align-items: center; gap: 6px; height: 34px; padding: 0 12px; background: var(--nen-2); border-bottom: 1px solid var(--vien); }
.khung-tdu__thanh i { width: 9px; height: 9px; border-radius: 50%; background: color-mix(in srgb, var(--muc) 18%, transparent); }
.khung-tdu__thanh span { margin-inline: auto; transform: translateX(-14px); font-size: .74rem; color: var(--chu-phu); background: var(--be-mat); padding: 2px 14px; border-radius: 999px; max-width: 60%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.khung-dt { margin: 0; border: 9px solid #1B1C20; border-radius: 34px; overflow: hidden; background: #1B1C20; box-shadow: var(--bong-dt); }
.khung-dt img { border-radius: 25px; width: 100%; }
@media (prefers-color-scheme: dark) { .khung-dt { border-color: #2A2B31; background: #2A2B31; } }

/* ---------- Hero trang chủ ---------- */
.hero {
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); align-items: center; gap: clamp(24px, 5vw, 72px);
  min-height: min(760px, calc(100dvh - var(--cao-dau-trang))); padding-block: clamp(32px, 6vw, 80px);
}
.hero h1 { font-size: clamp(2.5rem, 5.6vw, 4.6rem); line-height: 1.06; letter-spacing: -.035em; font-weight: 800; max-width: 13ch; }
.hero__mo-ta { margin-top: 22px; font-size: clamp(1.06rem, 1.5vw, 1.22rem); color: var(--chu-phu); max-width: 40ch; }
.hero__nut { margin-top: 34px; }
.hero__san-khau {
  position: relative; height: clamp(420px, 46vw, 600px); border-radius: 28px;
  background-color: var(--nen-2);
  background-image: radial-gradient(color-mix(in srgb, var(--muc) 14%, transparent) 1px, transparent 1.4px);
  background-size: 20px 20px;
}
.hero__may { position: absolute; display: block; width: clamp(150px, 17vw, 240px); transition: transform .5s var(--em-diu); }
.hero__may--1 { left: 50%; top: 50%; z-index: 3; transform: translate(-50%, -50%); }
.hero__may--2 { left: 8%; top: 50%; z-index: 2; transform: translateY(-46%) rotate(-8deg) scale(.86); }
.hero__may--3 { right: 8%; top: 50%; z-index: 1; transform: translateY(-54%) rotate(7deg) scale(.86); }
.hero__san-khau.so-1 .hero__may--1 { width: clamp(180px, 20vw, 260px); }
.hero__san-khau.so-2 .hero__may--1 { left: 60%; }
.hero__san-khau.so-2 .hero__may--2 { left: 10%; }
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .hero__san-khau:hover .hero__may--2 { transform: translateY(-48%) rotate(-11deg) scale(.86) translateX(-10px); }
  .hero__san-khau:hover .hero__may--3 { transform: translateY(-52%) rotate(10deg) scale(.86) translateX(10px); }
}
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; min-height: 0; padding-top: 28px; }
  .hero h1 { max-width: 16ch; }
  .hero__san-khau { height: 440px; }
  .hero__may { width: 170px; }
  .hero__may--2 { left: 2%; }
  .hero__may--3 { right: 2%; }
}
@media (max-width: 420px) {
  .hero__san-khau { height: 380px; }
  .hero__may { width: 148px; }
}

/* ---------- Tiêu đề mục ---------- */
.nhan-muc { font-size: .78rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--nhan); margin-bottom: 12px; }
.tieu-de-muc { font-size: clamp(1.9rem, 3.6vw, 2.9rem); letter-spacing: -.03em; }

/* ---------- Phòng trưng bày (trang chủ) ---------- */
.khu-san-pham { padding-block: clamp(56px, 8vw, 110px) 0; }
.ds-trien-lam { display: grid; gap: clamp(20px, 3vw, 32px); margin-top: clamp(28px, 4vw, 48px); }
.trien-lam {
  display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.25fr); gap: clamp(28px, 4vw, 64px); align-items: center;
  padding: clamp(24px, 4.5vw, 64px); border-radius: 28px; background: var(--sp-nhat);
  overflow: hidden;
}
.trien-lam--dao { grid-template-columns: minmax(0, 1.25fr) minmax(0, .9fr); }
.trien-lam--dao .trien-lam__chu { order: 2; }
@media (prefers-color-scheme: dark) { .trien-lam { background: var(--sp-toi); } }
.trien-lam__nhan { display: flex; align-items: center; gap: 12px; font-size: .9rem; font-weight: 500; color: var(--chu-phu); }
.logo-sp { width: 52px; height: 52px; border-radius: 14px; object-fit: contain; background: var(--be-mat); box-shadow: 0 1px 2px rgb(0 0 0 / .08); }
.logo-sp--lon { width: 72px; height: 72px; border-radius: 20px; }
.logo-sp--chu { display: inline-grid; place-items: center; background: var(--sp-nut, var(--nhan)); color: #fff; font: 800 1.15rem/1 var(--chu-hien-thi); letter-spacing: -.03em; }
.logo-sp--lon.logo-sp--chu { font-size: 1.6rem; }
.trien-lam h3 { margin-top: 18px; font-size: clamp(2rem, 3.8vw, 3.1rem); letter-spacing: -.035em; font-weight: 800; }
.trien-lam h3 a { text-decoration: none; }
.trien-lam h3 a:hover { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 6px; }
.ten-phu { font-weight: 600; color: var(--sp-nut, var(--chu-phu)); font-size: .55em; letter-spacing: -.01em; white-space: nowrap; }
@media (prefers-color-scheme: dark) { .ten-phu { color: var(--sp-sang, var(--chu-phu)); } }
.trien-lam__khau-hieu { margin-top: 14px; font-size: 1.1rem; color: var(--chu-phu); max-width: 38ch; }
.so-lieu { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin: 28px 0; padding-top: 22px; border-top: 1px solid color-mix(in srgb, var(--muc) 12%, transparent); }
.so-lieu dt { font: 800 clamp(1.6rem, 2.6vw, 2.1rem)/1.1 var(--chu-hien-thi); letter-spacing: -.03em; color: var(--sp-nut, var(--muc)); }
.so-lieu dd { margin: 4px 0 0; font-size: .86rem; line-height: 1.4; color: var(--chu-phu); }
@media (prefers-color-scheme: dark) { .so-lieu dt { color: var(--sp-sang, var(--muc)); } }
.trien-lam__hinh { position: relative; padding-bottom: 36px; }
.trien-lam__hinh .khung-tdu { transform: rotate(.6deg); transition: transform .6s var(--em-diu); }
.trien-lam--dao .trien-lam__hinh .khung-tdu { transform: rotate(-.6deg); }
.khung-dt--chong { position: absolute; width: clamp(110px, 24%, 200px); bottom: 0; right: -6px; transform: rotate(4deg); transition: transform .6s var(--em-diu); }
.trien-lam--dao .khung-dt--chong { right: auto; left: -6px; transform: rotate(-4deg); }
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .trien-lam:hover .khung-tdu { transform: rotate(0) translateY(-4px); }
  .trien-lam:hover .khung-dt--chong { transform: rotate(0) translateY(-10px); }
}
@media (max-width: 900px) {
  .trien-lam, .trien-lam--dao { grid-template-columns: 1fr; }
  .trien-lam--dao .trien-lam__chu { order: 0; }
  .khung-dt--chong { width: 30%; right: -2px; }
  .trien-lam--dao .khung-dt--chong { left: auto; right: -2px; }
}

/* Sản phẩm sắp ra mắt: dạng dải ngang, khác hẳn khối trưng bày */
.sap-ra { display: grid; gap: 16px; }
.sap-ra__the {
  display: grid; grid-template-columns: auto minmax(0, 1fr) auto auto; align-items: center; gap: 20px 28px;
  padding: 24px clamp(20px, 3vw, 36px); border-radius: 28px; border: 1.5px dashed color-mix(in srgb, var(--sp-nut) 45%, var(--vien));
  background: var(--be-mat);
}
.sap-ra__chu h3 { font-size: clamp(1.4rem, 2.4vw, 1.9rem); margin-top: 6px; }
.sap-ra__chu h3 a { text-decoration: none; }
.sap-ra__chu p:last-child { color: var(--chu-phu); margin-top: 4px; }
.huy-hieu { display: inline-flex; align-items: center; gap: 6px; font-size: .8rem; font-weight: 600; color: var(--sp-nut, var(--nhan)); background: var(--sp-nhat, var(--nhan-nhat)); padding: 4px 12px 4px 10px; border-radius: 999px; }
@media (prefers-color-scheme: dark) { .huy-hieu { color: var(--sp-sang, var(--nhan)); background: var(--sp-toi, var(--nhan-nhat)); } }
.sap-ra__nen-tang { list-style: none; margin: 0; padding: 0; display: flex; gap: 8px; }
.sap-ra__nen-tang li { font-size: .85rem; padding: 6px 14px; border-radius: 999px; background: var(--nen-2); }
@media (max-width: 760px) {
  .sap-ra__the { grid-template-columns: auto 1fr; }
  .sap-ra__nen-tang, .sap-ra__the > .nut { grid-column: 1 / -1; }
}

/* ---------- Bento nguyên tắc ---------- */
.khu-nguyen-tac { padding-block: clamp(72px, 10vw, 140px) 0; }
.bento { display: grid; gap: 16px; margin-top: clamp(24px, 3.5vw, 40px); grid-template-columns: repeat(2, minmax(0, 1fr)); }
.bento--co-anh { grid-template-columns: minmax(0, 1.2fr) repeat(2, minmax(0, 1fr)); }
.bento--co-anh .bento__o--anh { grid-row: span 2; }
.bento--co-anh.bento--1 .bento__o--anh, .bento--co-anh.bento--2 .bento__o--anh { grid-row: span 1; }
.bento__o { margin: 0; border-radius: 20px; padding: clamp(22px, 2.6vw, 32px); min-height: 220px; display: flex; flex-direction: column; justify-content: flex-end; gap: 10px; background: var(--be-mat); border: 1px solid var(--vien); }
.bento__o h3 { font-size: 1.35rem; letter-spacing: -.02em; }
.bento__o p { color: var(--chu-phu); font-size: .97rem; }
.bento__o--anh { padding: 0; overflow: hidden; border: 0; }
.bento__o--anh img { width: 100%; height: 100%; object-fit: cover; object-position: left center; }
.bento__o--1 { background: var(--nhan); border-color: transparent; color: var(--nhan-chu); }
.bento__o--1 p { color: color-mix(in srgb, var(--nhan-chu) 82%, transparent); }
.bento__o--3 { background: var(--muc); border-color: transparent; color: var(--nen); }
.bento__o--3 p { color: color-mix(in srgb, var(--nen) 72%, transparent); }
.bento__o--4 { background: var(--nhan-nhat); border-color: transparent; }
@media (max-width: 900px) {
  .bento, .bento--co-anh { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bento--co-anh .bento__o--anh { grid-column: 1 / -1; grid-row: auto; aspect-ratio: 1200 / 630; }
}
@media (max-width: 560px) {
  .bento, .bento--co-anh { grid-template-columns: 1fr; }
  .bento__o { min-height: 0; }
}

/* ---------- Về chúng mình ---------- */
.khu-ve { padding-block: clamp(72px, 10vw, 140px); display: grid; justify-items: center; text-align: left; }
.khu-ve__tieu-de { font-size: clamp(2rem, 4.6vw, 3.6rem); letter-spacing: -.035em; font-weight: 800; max-width: 18ch; text-align: center; }
.khu-ve__van { margin-top: 32px; max-width: 62ch; font-size: clamp(1.05rem, 1.4vw, 1.18rem); color: var(--chu-phu); }

/* ---------- Văn bản dài ---------- */
.van-ban > * + * { margin-top: 1em; }
.van-ban h3, .van-ban h4 { color: var(--muc); font-size: 1.35rem; margin-top: 1.8em; }
.van-ban ul { padding-left: 1.2em; }
.van-ban li + li { margin-top: .4em; }
.van-ban li::marker { color: var(--sp-nut, var(--nhan)); }
.van-ban strong { color: var(--muc); font-weight: 600; }
.van-ban a { color: var(--sp-nut, var(--nhan)); text-underline-offset: 3px; }
.van-ban ol { padding-left: 1.4em; }
.van-ban ol li::marker { font-weight: 600; }
.van-ban blockquote { margin-inline: 0; padding: 4px 0 4px 20px; border-left: 3px solid var(--sp-nut, var(--nhan)); font-style: italic; }

/* ---------- Bài viết ---------- */
.khung-hep { width: 100%; max-width: calc(760px + 2 * var(--le)); margin-inline: auto; padding-inline: var(--le); }
.bai-viet__dau { padding-top: clamp(36px, 6vw, 72px); }
.bai-viet__dau h1 { font-size: clamp(2rem, 4.6vw, 3.2rem); font-weight: 800; letter-spacing: -.035em; line-height: 1.08; }
.bai-viet__sapo { margin-top: 18px; font-size: clamp(1.08rem, 1.6vw, 1.22rem); color: var(--chu-phu); }
.bai-viet__meta { display: flex; flex-wrap: wrap; gap: 4px 10px; margin-top: 22px; font-size: .9rem; color: var(--chu-phu); }
.bai-viet__meta span:first-child { color: var(--muc); font-weight: 600; }
.bai-viet__bia { margin-block: 32px 0; }
.bai-viet__bia img { border-radius: 18px; border: 1px solid var(--vien); width: 100%; }
.bai-viet__than { margin-top: 36px; font-size: 1.08rem; }
.bai-viet__than h2 { font-size: clamp(1.5rem, 2.6vw, 1.85rem); margin-top: 1.9em; letter-spacing: -.03em; }
.bai-viet__than h3 { font-size: 1.22rem; margin-top: 1.5em; }
.bai-viet__than h2 + *, .bai-viet__than h3 + * { margin-top: .6em; }
.bai-viet__sp { display: grid; gap: 14px; margin-top: 48px; }
.the-ngang { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 12px 18px; padding: 20px; border-radius: 20px; background: var(--sp-nhat, var(--be-mat)); border: 1px solid color-mix(in srgb, var(--sp, var(--vien)) 22%, transparent); }
@media (prefers-color-scheme: dark) { .the-ngang { background: var(--sp-toi, var(--be-mat)); } }
.the-ngang__chu p { margin: 0; color: var(--chu-phu); font-size: .95rem; }
.the-ngang__nhan { font-size: .8rem !important; text-transform: uppercase; letter-spacing: .06em; }
.the-ngang__ten { font: 700 1.25rem/1.2 var(--chu-hien-thi) !important; color: var(--muc) !important; margin: 2px 0 4px !important; }
.the-ngang__ten a { text-decoration: none; }
.the-ngang__ten a:hover { text-decoration: underline; text-underline-offset: 4px; }
.the-ngang .cum-nut { grid-column: 1 / -1; }
.the-ngang .cum-nut:empty { display: none; }
@media (min-width: 720px) { .the-ngang { grid-template-columns: auto 1fr auto; } .the-ngang .cum-nut { grid-column: auto; } }
.bai-viet__them { margin-block: 56px clamp(64px, 8vw, 110px); }
.bai-viet__them h2 { font-size: 1.4rem; margin-bottom: 10px; }
.bai-viet__them ul { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--vien); }
.bai-viet__them li { border-bottom: 1px solid var(--vien); }
.bai-viet__them a { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px 2px; text-decoration: none; font-weight: 500; }
.bai-viet__them a .ic { flex: none; width: 18px; height: 18px; color: var(--chu-phu); transition: transform .25s var(--em-diu); }
.bai-viet__them a:hover span { text-decoration: underline; text-underline-offset: 4px; }
.bai-viet__them a:hover .ic { transform: translateX(4px); color: var(--muc); }
.trang-bai-viet main { padding-bottom: 8px; }

/* ---------- Liên hệ ---------- */
.khu-lien-he { padding-block: clamp(64px, 8vw, 110px); background: var(--nen-2); }
.khu-lien-he__trong { display: grid; justify-items: start; gap: 22px; }
.khu-lien-he__email { display: inline-flex; align-items: center; gap: 14px; font: 700 clamp(1.4rem, 3.4vw, 2.6rem)/1.15 var(--chu-hien-thi); letter-spacing: -.03em; text-decoration: none; color: var(--nhan); word-break: break-all; }
.khu-lien-he__email:hover span { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 6px; }
.mxh { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.mxh a { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; border-radius: 999px; background: var(--be-mat); text-decoration: none; font-weight: 500; border: 1px solid var(--vien); }
.mxh a:hover { border-color: var(--muc); }

/* ---------- Chân trang ---------- */
.chan-trang { border-top: 1px solid var(--vien); padding-top: 56px; font-size: .95rem; }
.chan-trang__trong { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
.chan-trang__thuong-hieu p { margin-top: 14px; color: var(--chu-phu); max-width: 32ch; }
.chan-trang__cot h2 { font: 600 .82rem/1.4 var(--chu-than); letter-spacing: .08em; text-transform: uppercase; color: var(--chu-phu); }
.chan-trang__cot ul { list-style: none; margin: 14px 0 0; padding: 0; display: grid; gap: 8px; }
.chan-trang__cot a { text-decoration: none; }
.chan-trang__cot a:hover { text-decoration: underline; text-underline-offset: 3px; }
.chan-trang__cuoi { margin-top: 48px; padding-block: 22px; border-top: 1px solid var(--vien); color: var(--chu-phu); font-size: .86rem; }
@media (max-width: 700px) { .chan-trang__trong { grid-template-columns: 1fr 1fr; } .chan-trang__thuong-hieu { grid-column: 1 / -1; } }

/* ---------- Đường dẫn ---------- */
.duong-dan ol { list-style: none; margin: 0 0 22px; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; font-size: .88rem; color: var(--chu-phu); }
.duong-dan li + li::before { content: '/'; margin-right: 6px; opacity: .5; }
.duong-dan a { text-decoration: none; }
.duong-dan a:hover { text-decoration: underline; text-underline-offset: 3px; color: var(--muc); }

/* ---------- Danh sách sản phẩm ---------- */
.dau-muc-trang { padding-block: clamp(40px, 6vw, 80px) 32px; }
.dau-muc-trang h1 { font-size: clamp(2.4rem, 5vw, 4rem); letter-spacing: -.035em; font-weight: 800; }
.dau-muc-trang__mo-ta { margin-top: 12px; color: var(--chu-phu); font-size: 1.1rem; }
.luoi-sp { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr)); gap: 20px; padding-bottom: clamp(56px, 8vw, 110px); }
.the-sp__lien-ket { display: flex; flex-direction: column; height: 100%; text-decoration: none; border-radius: 20px; overflow: hidden; background: var(--be-mat); border: 1px solid var(--vien); transition: transform .35s var(--em-diu), box-shadow .35s var(--em-diu); }
.the-sp__lien-ket:hover { transform: translateY(-4px); box-shadow: var(--bong); }
.the-sp__hinh { aspect-ratio: 16 / 10; background: var(--sp-nhat); display: grid; place-items: center; overflow: hidden; }
@media (prefers-color-scheme: dark) { .the-sp__hinh { background: var(--sp-toi); } }
.the-sp__hinh img:not(.logo-sp) { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.the-sp__chu { padding: 20px 22px 24px; }
.the-sp__nhan { font-size: .8rem; font-weight: 600; color: var(--sp-nut); display: flex; gap: 8px; }
@media (prefers-color-scheme: dark) { .the-sp__nhan { color: var(--sp-sang); } }
.the-sp__nhan span { opacity: .45; }
.the-sp h2 { font-size: 1.5rem; margin-top: 8px; }
.the-sp__chu p:last-child { margin-top: 6px; color: var(--chu-phu); font-size: .95rem; }

/* ---------- Trang sản phẩm ---------- */
.sp-hero { background: var(--sp-nhat); padding-block: clamp(28px, 4vw, 48px) clamp(48px, 6vw, 88px); }
@media (prefers-color-scheme: dark) { .sp-hero { background: var(--sp-toi); } }
.sp-hero__trong { display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1.15fr); gap: clamp(28px, 5vw, 72px); align-items: center; }
.sp-hero__nhan { display: flex; align-items: center; gap: 16px; }
.sp-hero__nhan p { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; color: var(--chu-phu); font-weight: 500; }
.sp-hero h1 { margin-top: 22px; font-size: clamp(2.6rem, 6vw, 4.8rem); letter-spacing: -.04em; font-weight: 800; line-height: 1.04; }
.sp-hero h1 .ten-phu { display: block; font-size: .42em; margin-top: 8px; letter-spacing: -.015em; }
.sp-hero__khau-hieu { margin-top: 18px; font-size: clamp(1.08rem, 1.6vw, 1.25rem); color: var(--chu-phu); max-width: 36ch; }
.sp-hero .cum-nut { margin-top: 30px; }
.chip { list-style: none; margin: 26px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chip li { display: inline-flex; align-items: center; gap: 6px; font-size: .85rem; padding: 6px 13px; border-radius: 999px; background: color-mix(in srgb, var(--be-mat) 75%, transparent); border: 1px solid color-mix(in srgb, var(--muc) 10%, transparent); }
.sp-hero__hinh { position: relative; padding-bottom: 40px; }
.sp-hero__hinh > .khung-dt:only-child { position: static; width: min(300px, 70%); margin-inline: auto; transform: none; }
.sp-hero__cho { aspect-ratio: 4 / 3; border-radius: 28px; display: grid; place-items: center; background: var(--sp-nut); background-image: radial-gradient(rgb(255 255 255 / .16) 1px, transparent 1.4px); background-size: 22px 22px; }
.sp-hero__cho span { font: 800 clamp(4rem, 12vw, 9rem)/1 var(--chu-hien-thi); color: #fff; letter-spacing: -.05em; }
@media (max-width: 900px) { .sp-hero__trong { grid-template-columns: 1fr; } }

.dai-so-lieu dl { margin: clamp(-36px, -3vw, -24px) 0 0; position: relative; display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); background: var(--be-mat); border-radius: 20px; border: 1px solid var(--vien); box-shadow: var(--bong); }
.dai-so-lieu dl > div { padding: 24px 28px; }
.dai-so-lieu dl > div + div { border-left: 1px solid var(--vien); }
.dai-so-lieu dt { font: 800 clamp(2rem, 4vw, 2.8rem)/1.05 var(--chu-hien-thi); letter-spacing: -.04em; color: var(--sp-nut); }
@media (prefers-color-scheme: dark) { .dai-so-lieu dt { color: var(--sp-sang); } }
.dai-so-lieu dd { margin: 6px 0 0; color: var(--chu-phu); font-size: .92rem; }
@media (max-width: 600px) { .dai-so-lieu dl > div + div { border-left: 0; border-top: 1px solid var(--vien); } }

.khu-thu-vien { padding-block: clamp(64px, 8vw, 110px) 0; }
.thu-vien {
  list-style: none; margin: 28px 0 0; display: flex; gap: 20px; overflow-x: auto; scroll-snap-type: x mandatory;
  padding: 4px max(var(--le), calc((100vw - var(--rong-toi-da)) / 2)) 16px; scroll-padding-inline: max(var(--le), calc((100vw - var(--rong-toi-da)) / 2));
  scrollbar-width: thin;
}
.thu-vien__o { flex: none; scroll-snap-align: start; }
.thu-vien__nut { display: block; padding: 0; border: 0; background: none; cursor: zoom-in; border-radius: 14px; overflow: hidden; box-shadow: var(--bong); }
.thu-vien__nut img { height: clamp(300px, 40vw, 460px); width: auto; max-width: none; transition: transform .5s var(--em-diu); }
.thu-vien__nut:hover img { transform: scale(1.02); }
.thu-vien__o p { margin-top: 12px; font-size: .9rem; color: var(--chu-phu); max-width: 46ch; }

.hop-anh { width: 100vw; height: 100dvh; max-width: none; max-height: none; margin: 0; padding: 0; border: 0; background: rgb(12 12 15 / .94); color: #fff; }
.hop-anh[open] { display: grid; grid-template-columns: 64px 1fr 64px; align-items: center; }
.hop-anh::backdrop { background: rgb(0 0 0 / .5); }
.hop-anh figure { margin: 0; display: grid; justify-items: center; gap: 14px; padding: 56px 0 24px; height: 100%; align-content: center; }
.hop-anh img { max-height: calc(100dvh - 140px); width: auto; max-width: 100%; border-radius: 10px; }
.hop-anh figcaption { font-size: .95rem; opacity: .85; text-align: center; }
.hop-anh button { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 999px; border: 0; background: rgb(255 255 255 / .12); color: #fff; cursor: pointer; justify-self: center; }
.hop-anh button:hover { background: rgb(255 255 255 / .22); }
.hop-anh__dong { position: absolute; top: 14px; right: 14px; }
@media (max-width: 600px) { .hop-anh[open] { grid-template-columns: 48px 1fr 48px; } }

.khu-gioi-thieu { padding-block: clamp(64px, 8vw, 110px) 0; }
.khu-gioi-thieu .van-ban { margin-top: 24px; max-width: 68ch; font-size: 1.08rem; color: var(--chu-phu); }

.khu-diem-nhan { padding-block: clamp(64px, 8vw, 110px) 0; }
.luoi-diem-nhan { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 16px; margin-top: 32px; }
.diem-nhan { grid-column: span var(--cot, 3); border-radius: 20px; padding: clamp(22px, 2.6vw, 32px); min-height: 200px; display: flex; flex-direction: column; justify-content: flex-end; gap: 10px; }
.diem-nhan h3 { font-size: 1.35rem; letter-spacing: -.02em; }
.diem-nhan p { font-size: .98rem; }
.diem-nhan--1 { background: var(--sp-nhat); }
.diem-nhan--1 p, .diem-nhan--2 p { color: var(--chu-phu); }
.diem-nhan--2 { background: var(--be-mat); border: 1px solid var(--vien); }
.diem-nhan--3 { background: var(--sp-nut); color: #fff; }
.diem-nhan--3 p { color: rgb(255 255 255 / .86); }
@media (prefers-color-scheme: dark) { .diem-nhan--1 { background: var(--sp-toi); } }
@media (max-width: 760px) { .luoi-diem-nhan { grid-template-columns: 1fr; } .diem-nhan { grid-column: auto; min-height: 0; } }

.khu-hoi-dap { padding-block: clamp(64px, 8vw, 110px) 0; }
.hoi-dap { margin-top: 24px; max-width: 860px; border-top: 1px solid var(--vien); }
.hoi-dap details { border-bottom: 1px solid var(--vien); }
.hoi-dap summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 22px 4px; font: 600 1.14rem/1.35 var(--chu-hien-thi); letter-spacing: -.01em; }
.hoi-dap summary::-webkit-details-marker { display: none; }
.hoi-dap__dau { transition: transform .3s var(--em-diu); color: var(--sp-nut); }
.hoi-dap details[open] .hoi-dap__dau { transform: rotate(45deg); }
.hoi-dap .van-ban { padding: 0 4px 24px; color: var(--chu-phu); max-width: 68ch; }

.dai-keu-goi { margin-top: clamp(64px, 8vw, 110px); display: grid; justify-items: center; text-align: center; gap: 26px; padding-block: clamp(48px, 6vw, 80px); border-radius: 28px; background: var(--sp-nut); color: #fff; }
.dai-keu-goi h2 { font-size: clamp(1.8rem, 3.6vw, 2.8rem); max-width: 20ch; letter-spacing: -.03em; }
.dai-keu-goi .cum-nut { justify-content: center; }
.dai-keu-goi .nut--chinh { background: #fff; color: var(--sp-nut); box-shadow: none; }
.dai-keu-goi .nut--vien { color: #fff; border-color: rgb(255 255 255 / .5); }
.dai-keu-goi .nut--vien:hover { border-color: #fff; }

.khu-khac { padding-block: clamp(64px, 8vw, 110px) 0; }
.khu-khac .luoi-sp { margin-top: 28px; }

/* ---------- 404 ---------- */
.trang-loi { padding-block: clamp(64px, 12vw, 160px); display: grid; gap: 18px; justify-items: start; }
.trang-loi__ma { font: 800 clamp(5rem, 16vw, 11rem)/1 var(--chu-hien-thi); letter-spacing: -.06em; color: var(--nhan); }
.trang-loi h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
.trang-loi p:not(.trang-loi__ma) { color: var(--chu-phu); }

/* ---------- Chuyển động ---------- */
@media (prefers-reduced-motion: no-preference) {
  .hien-dan { animation: hien-len .9s var(--em-diu) both; animation-delay: calc(var(--tre, 0) * 90ms + 60ms); }
  .hero__may { animation: hien-may 1.1s var(--em-diu) both; }
  .hero__may--1 { animation-delay: .1s; }
  .hero__may--2 { animation-delay: .25s; }
  .hero__may--3 { animation-delay: .35s; }
  .js .hien-cuon { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--em-diu), transform .8s var(--em-diu); transition-delay: calc(var(--tre, 0) * 70ms); }
  .js .hien-cuon.da-hien { opacity: 1; transform: none; }
}
@keyframes hien-len { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
@keyframes hien-may { from { opacity: 0; translate: 0 40px; } to { opacity: 1; translate: 0 0; } }
.bai-viet__dau .duong-dan li[aria-current] { min-width: 0; max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bai-viet__dau .duong-dan ol { flex-wrap: nowrap; }