/* Self-hosted fonts (SIL Open Font License): Playfair Display (variable, headings), Be Vietnam Pro 400/600 (text).
 Only Latin + Vietnamese subsets: six files in total, so pages load fast and Googlebot fetches them all. */
@font-face{font-family:'Playfair Display';font-style:normal;font-display:swap;font-weight:400 900;src:url(/fonts/playfair-display-vietnamese-wght-normal.woff2) format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB;}
@font-face{font-family:'Playfair Display';font-style:normal;font-display:swap;font-weight:400 900;src:url(/fonts/playfair-display-latin-wght-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;}
@font-face{font-family:'Be Vietnam Pro';font-style:normal;font-display:swap;font-weight:400;src:url(/fonts/be-vietnam-pro-vietnamese-400-normal.woff2) format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB;}
@font-face{font-family:'Be Vietnam Pro';font-style:normal;font-display:swap;font-weight:400;src:url(/fonts/be-vietnam-pro-latin-400-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;}
@font-face{font-family:'Be Vietnam Pro';font-style:normal;font-display:swap;font-weight:600;src:url(/fonts/be-vietnam-pro-vietnamese-600-normal.woff2) format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB;}
@font-face{font-family:'Be Vietnam Pro';font-style:normal;font-display:swap;font-weight:600;src:url(/fonts/be-vietnam-pro-latin-600-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;}

/* =========================================================
   Thủy sản Noben – design tokens
   Colours come from the Noben logo: royal blue lettering on a
   yellow diamond. Ink is the deep blue of a pond at dusk.
   ========================================================= */
:root {
  color-scheme: light;
  --ink: #0b2347;
  --ink-2: #13315f;
  --blue: #1b4db1;
  --blue-600: #153d8c;
  --blue-050: #eaf0fb;
  --sun: #ffc20e;
  --sun-600: #e9ad00;
  --sun-ink: #2b2000;
  --paper: #f4f7fb;
  --surface: #ffffff;
  --line: #d6deea;
  --line-strong: #b8c5d9;
  --text: #13213a;
  --muted: #4a5b78;
  --on-ink: #e8eef9;
  --on-ink-muted: #a9b9d6;
  --heading: #0b2347;
  --band: #0b2347;
  --link: #1b4db1;
  --link-hover: #153d8c;
  --field-bg: #ffffff;
  --selected-bg: #0b2347;
  --selected-fg: #ffffff;
  --ok: #1f7a4d;
  --danger: #b4232c;

  --c-sinh-hoc: #1f7a4d;
  --c-khoang-chat: #0e6c8a;
  --c-thuc-an-bo-sung: #9a5a00;
  --c-tri-benh: #b4232c;

  --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', sans-serif;

  --step--1: 0.875rem;
  --step-0: 1rem;
  --step-1: 1.125rem;
  --step-2: 1.375rem;
  --step-3: clamp(1.5rem, 1.2rem + 1.2vw, 2.125rem);
  --step-4: clamp(1.9rem, 1.4rem + 2vw, 2.875rem);
  --step-5: clamp(2.4rem, 1.6rem + 3.6vw, 4.25rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4.5rem;
  --space-9: 6rem;

  --radius-s: 6px;
  --radius-m: 10px;
  --radius-l: 16px;
  --wrap: 1240px;
  --header-h: 76px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}


/* Dark theme: follows the device unless the visitor picks one with the header button. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --paper: #0a1a33;
    --surface: #10264a;
    --line: #213e6b;
    --line-strong: #31568a;
    --text: #dce5f4;
    --muted: #a6b6d2;
    --heading: #f3f7fd;
    --band: #050f22;
    --blue: #2f62cf;
    --blue-600: #2553b5;
    --blue-050: #15305a;
    --link: #8fb2ff;
    --link-hover: #b5ccff;
    --field-bg: #0c2142;
    --selected-bg: #ffc20e;
    --selected-fg: #2b2000;
    --ok: #4cc28a;
    --danger: #ff8189;
    --c-sinh-hoc: #4cc28a;
    --c-khoang-chat: #4bb8d9;
    --c-thuc-an-bo-sung: #e6a54a;
    --c-tri-benh: #ff7b83;
    color-scheme: dark;
  }
}
:root[data-theme='dark'] {
  --paper: #0a1a33;
  --surface: #10264a;
  --line: #213e6b;
  --line-strong: #31568a;
  --text: #dce5f4;
  --muted: #a6b6d2;
  --heading: #f3f7fd;
  --band: #050f22;
  --blue: #2f62cf;
  --blue-600: #2553b5;
  --blue-050: #15305a;
  --link: #8fb2ff;
  --link-hover: #b5ccff;
  --field-bg: #0c2142;
  --selected-bg: #ffc20e;
  --selected-fg: #2b2000;
  --ok: #4cc28a;
  --danger: #ff8189;
  --c-sinh-hoc: #4cc28a;
  --c-khoang-chat: #4bb8d9;
  --c-thuc-an-bo-sung: #e6a54a;
  --c-tri-benh: #ff7b83;
  color-scheme: dark;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 16px); }
body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--link); text-underline-offset: 3px; }
a:hover { color: var(--link-hover); }
h1, h2, h3, h4 { margin: 0; line-height: 1.15; text-wrap: balance; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; }
sub, sup { line-height: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--sun); outline-offset: 2px; border-radius: 4px; }
.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; }
.skip { position: absolute; left: 16px; top: -60px; z-index: 100; background: var(--sun); color: var(--sun-ink); padding: 10px 16px; border-radius: var(--radius-s); font-weight: 600; }
.skip:focus { top: 12px; }
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: 16px; }
@media (min-width: 700px) { .wrap { padding-inline: 28px; } }

.ico { width: 1.25em; height: 1.25em; flex: none; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.ico--lg { width: 32px; height: 32px; stroke-width: 1.6; }

/* ---------- Type helpers ---------- */
.h2, .page-head__title, .hero__title, .article__title, .product__name, .post-lead__title {
  font-family: var(--font-display);
  font-stretch: 78%;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--heading);
}
.h2 { font-size: var(--step-4); }
.h3 { font-family: var(--font-display); font-stretch: 85%; font-weight: 700; font-size: var(--step-2); color: var(--heading); }
.lead { font-size: var(--step-1); color: var(--muted); max-width: 60ch; }
.text-link { font-weight: 600; text-decoration: underline; text-decoration-thickness: 2px; text-decoration-color: color-mix(in srgb, var(--blue) 35%, transparent); }
.text-link:hover { text-decoration-color: currentColor; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5em;
  min-height: 48px; padding: 0.7em 1.3em;
  border-radius: var(--radius-s); border: 2px solid transparent;
  font-weight: 600; font-size: var(--step-0); line-height: 1.2; text-decoration: none; text-align: center;
  cursor: pointer; transition: background-color 160ms var(--ease), border-color 160ms var(--ease), color 160ms var(--ease);
}
.btn--sun { background: var(--sun); color: var(--sun-ink); }
.btn--sun:hover { background: var(--sun-600); color: var(--sun-ink); }
.btn--blue { background: var(--blue); color: #fff; }
.btn--blue:hover { background: var(--blue-600); color: #fff; }
.btn--line { border-color: var(--line-strong); color: var(--heading); background: var(--surface); }
.btn--line:hover { border-color: var(--link); color: var(--link); }
.btn--ghost { border-color: color-mix(in srgb, var(--on-ink) 40%, transparent); color: #fff; }
.btn--ghost:hover { border-color: #fff; color: #fff; }
.btn--block { width: 100%; }
.btn[disabled] { opacity: 0.6; cursor: progress; }
.btn-row { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-5); }

/* ---------- Header ---------- */
.site-header { position: sticky; top: 0; z-index: 40; background: var(--surface); border-bottom: 1px solid var(--line); transition: box-shadow 200ms var(--ease); }
.site-header.is-scrolled { box-shadow: 0 6px 24px -18px rgba(11, 35, 71, 0.45); }
.site-header__bar { display: flex; align-items: center; gap: var(--space-5); min-height: var(--header-h); }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--heading); flex: none; }
.brand img { width: 52px; height: 52px; }
.brand__text { display: flex; flex-direction: column; line-height: 1; }
.brand__text strong { font-family: var(--font-display); font-stretch: 90%; font-weight: 800; font-size: 1.6rem; color: var(--link); letter-spacing: 0.01em; }
.brand__text small { font-size: 0.8rem; color: var(--muted); margin-top: 4px; }
.brand--light .brand__text strong { color: #fff; }
.brand--light .brand__text small { color: var(--on-ink-muted); }

.nav { margin-left: auto; }
.nav__list { list-style: none; display: flex; gap: var(--space-1); }
.nav__link { display: block; padding: 10px 14px; border-radius: var(--radius-s); color: var(--heading); text-decoration: none; font-weight: 600; }
.nav__link:hover { background: var(--blue-050); color: var(--link); }
.nav__link[aria-current='page'] { color: var(--link); box-shadow: inset 0 -3px 0 var(--sun); border-radius: 0; }
.nav__mobile-extra { display: none; }
.site-header__actions { display: flex; align-items: center; gap: var(--space-2); margin-left: auto; }
.nav + .site-header__actions { margin-left: 0; }
.site-header__call { min-height: 52px; padding: 6px 16px; text-align: left; }
.site-header__call span { display: flex; flex-direction: column; font-family: var(--font-display); font-stretch: 85%; font-weight: 800; font-size: 1.15rem; line-height: 1.05; }
.site-header__call small { font-family: var(--font-body); font-weight: 500; font-size: 0.72rem; }
.menu-toggle { display: none; width: 48px; height: 48px; border: 1px solid var(--line); background: var(--surface); border-radius: var(--radius-s); align-items: center; justify-content: center; color: var(--heading); cursor: pointer; }
.menu-toggle .ico--close { display: none; }
.menu-toggle[aria-expanded='true'] .ico--open { display: none; }
.menu-toggle[aria-expanded='true'] .ico--close { display: block; }

@media (max-width: 1080px) {
  .site-header__call small { display: none; }
}
@media (max-width: 960px) {
  :root { --header-h: 64px; }
  .brand img { width: 44px; height: 44px; }
  .menu-toggle { display: inline-flex; }
  .nav + .site-header__actions { margin-left: auto; }
  .site-header__call { display: none; }
  .nav {
    position: fixed; inset: var(--header-h) 0 0 0; background: var(--surface);
    padding: var(--space-5) 16px var(--space-7); overflow-y: auto;
    transform: translateY(-8px); opacity: 0; visibility: hidden;
    transition: opacity 180ms var(--ease), transform 180ms var(--ease), visibility 0s linear 180ms;
  }
  .nav.is-open { transform: none; opacity: 1; visibility: visible; transition: opacity 200ms var(--ease), transform 200ms var(--ease); }
  .nav__list { flex-direction: column; gap: 0; }
  .nav__link { font-family: var(--font-display); font-stretch: 85%; font-weight: 700; font-size: 1.5rem; padding: 14px 4px; border-bottom: 1px solid var(--line); border-radius: 0; }
  .nav__link[aria-current='page'] { box-shadow: inset 4px 0 0 var(--sun); padding-left: 16px; }
  .nav__mobile-extra { display: grid; gap: var(--space-3); margin-top: var(--space-6); }
  body.menu-open { overflow: hidden; }
}

/* ---------- Hero ---------- */
.hero { background: var(--band); color: var(--on-ink); padding-block: var(--space-7) var(--space-8); overflow: hidden; }
.hero__grid { display: grid; gap: var(--space-7); align-items: start; }
.hero__grid > *, .split > *, .product > *, .contact > *, .article__layout > *, .page-head__split > *, .quick-contact__grid > *, .oem-band__grid > * { min-width: 0; }
@media (min-width: 1000px) { .hero__grid { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--space-8); } }
.hero__kicker { color: var(--on-ink-muted); font-weight: 500; margin-bottom: var(--space-4); }
.hero__title { font-size: var(--step-5); color: #fff; line-height: 1.02; max-width: 15ch; }
.hero__lead { margin-top: var(--space-5); font-size: var(--step-1); color: var(--on-ink); max-width: 56ch; }

.finder { margin-top: var(--space-6); padding-top: var(--space-5); border-top: 1px solid rgba(169, 185, 214, 0.28); }
.finder__label { font-family: var(--font-display); font-stretch: 85%; font-weight: 700; font-size: var(--step-2); color: var(--sun); margin-bottom: var(--space-3); }
.finder__chips { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.chip {
  display: inline-flex; align-items: center; min-height: 44px; padding: 8px 16px;
  border-radius: 999px; border: 1.5px solid rgba(169, 185, 214, 0.45);
  color: var(--on-ink); text-decoration: none; font-weight: 500; font-size: 0.95rem; line-height: 1.25;
  cursor: pointer; transition: background-color 150ms var(--ease), border-color 150ms var(--ease), color 150ms var(--ease);
}
.chip:hover { border-color: var(--on-ink); color: #fff; }
.chip[aria-pressed='true'] { background: var(--sun); border-color: var(--sun); color: var(--sun-ink); font-weight: 600; }
.finder__result { margin-top: var(--space-5); }
.finder__list { list-style: none; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: var(--space-3); }
.finder__list a { display: block; text-decoration: none; color: var(--on-ink); font-size: 0.85rem; font-weight: 600; line-height: 1.25; }
.finder__list img { width: 100%; aspect-ratio: 532 / 1009; object-fit: cover; border-radius: var(--radius-s); background: var(--ink-2); margin-bottom: 8px; transition: transform 220ms var(--ease); }
.finder__list a:hover img { transform: translateY(-4px); }
.finder__list a:hover span { text-decoration: underline; }
.finder__list.is-swapping { opacity: 0.35; }
.finder__list { transition: opacity 160ms var(--ease); }
.finder__more { display: inline-block; margin-top: var(--space-4); color: var(--sun); font-weight: 600; }
.finder__more:hover { color: #fff; }
@media (max-width: 760px) {
  .finder__chips { flex-wrap: nowrap; overflow-x: auto; margin-inline: -16px; padding-inline: 16px; padding-bottom: 6px; scrollbar-width: none; scroll-snap-type: x proximity; scroll-padding-inline: 16px; }
  .finder__chips::-webkit-scrollbar { display: none; }
  .finder__chips .chip { flex: none; scroll-snap-align: start; }
  .hero { padding-top: var(--space-6); }
}
@media (max-width: 560px) {
  .finder__list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .finder__list li:nth-child(n + 4) { display: none; }
}

.hero__photo { position: relative; margin: 0; }
@media (min-width: 1000px) { .hero__photo { margin-top: var(--space-6); } }
.hero__photo img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; object-position: 62% 50%; border-radius: var(--radius-l); }
.hero__photo figcaption { margin-top: var(--space-3); font-size: var(--step--1); color: var(--on-ink-muted); }
@media (max-width: 999px) { .hero__photo img { aspect-ratio: 16 / 10; } }
/* The diamond from the Noben logo, used once as the quality seal. */
.iso-badge {
  position: absolute; top: -18px; left: -18px; width: 112px; height: 112px;
  display: grid; place-items: center;
}
.iso-badge::before { content: ''; position: absolute; inset: 16px; background: var(--sun); transform: rotate(45deg); border-radius: 10px; box-shadow: 0 0 0 6px var(--band); }
.iso-badge span { position: relative; font-family: var(--font-display); font-stretch: 75%; font-weight: 800; font-size: 0.95rem; line-height: 1; text-align: center; color: var(--link); }
@media (max-width: 999px) { .iso-badge { top: -22px; left: auto; right: 4px; width: 96px; height: 96px; } }

/* ---------- Facts row ---------- */
.facts { background: var(--surface); border-bottom: 1px solid var(--line); }
.facts__row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (min-width: 900px) { .facts__row { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.fact { padding: var(--space-5) var(--space-4); border-left: 1px solid var(--line); display: flex; flex-direction: column; gap: 2px; }
.fact:first-child { border-left: 0; padding-left: 0; }
@media (max-width: 899px) {
  .fact:nth-child(odd) { border-left: 0; padding-left: 0; }
  .fact:nth-child(n + 3) { border-top: 1px solid var(--line); }
}
.fact strong { font-family: var(--font-display); font-stretch: 80%; font-weight: 800; font-size: var(--step-3); color: var(--heading); line-height: 1.1; }
.fact span { color: var(--muted); font-size: var(--step--1); }

/* ---------- Sections ---------- */
.section { padding-block: var(--space-8); }
.section--tint { background: var(--surface); border-block: 1px solid var(--line); }
.section--top-tight { padding-top: var(--space-6); }
.section-head { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: var(--space-3) var(--space-5); margin-bottom: var(--space-6); }
.split { display: grid; gap: var(--space-6); }
@media (min-width: 960px) { .split { grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: var(--space-8); } .split__aside { position: sticky; top: calc(var(--header-h) + 24px); align-self: start; } }
.split__aside .lead { margin-block: var(--space-4) var(--space-5); }

/* ---------- Category groups (home) ---------- */
.groups { list-style: none; border-top: 1px solid var(--line); }
.group { border-bottom: 1px solid var(--line); }
.group__link { display: grid; gap: var(--space-5); align-items: center; padding: var(--space-6) 0 var(--space-6) var(--space-5); text-decoration: none; color: inherit; position: relative; transition: background-color 200ms var(--ease); }
.group__link::before { content: ''; position: absolute; left: 0; top: var(--space-6); bottom: var(--space-6); width: 4px; border-radius: 2px; background: var(--cat); }
.group__link:hover { background: var(--surface); }
@media (min-width: 860px) { .group__link { grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); padding-right: var(--space-5); } }
.group__name { font-family: var(--font-display); font-stretch: 80%; font-weight: 800; font-size: var(--step-3); color: var(--heading); }
.group__link:hover .group__name { color: var(--cat); }
.group__blurb { color: var(--muted); margin-top: var(--space-2); max-width: 52ch; }
.group__count { display: inline-block; margin-top: var(--space-3); font-weight: 600; color: var(--cat); }
.group__shelf { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-3); max-width: 420px; justify-self: end; width: 100%; }
.group__shelf img { aspect-ratio: 532 / 760; object-fit: cover; object-position: top; border-radius: var(--radius-s); }
@media (max-width: 859px) { .group__shelf { justify-self: start; max-width: 340px; } }
.group--sinh-hoc { --cat: var(--c-sinh-hoc); }
.group--khoang-chat { --cat: var(--c-khoang-chat); }
.group--thuc-an-bo-sung { --cat: var(--c-thuc-an-bo-sung); }
.group--tri-benh { --cat: var(--c-tri-benh); }

/* ---------- Category tag & diamond ---------- */
.cat-tag { display: inline-flex; align-items: center; gap: 7px; font-size: 0.8rem; font-weight: 600; color: var(--cat, var(--muted)); }
.cat-tag::before, .dia { content: ''; width: 8px; height: 8px; background: var(--cat, var(--blue)); transform: rotate(45deg); flex: none; display: inline-block; }
.cat-tag a { color: inherit; text-decoration: none; }
.cat-tag a:hover { text-decoration: underline; }
.cat-tag--sinh-hoc, .dia--sinh-hoc { --cat: var(--c-sinh-hoc); }
.cat-tag--khoang-chat, .dia--khoang-chat { --cat: var(--c-khoang-chat); }
.cat-tag--thuc-an-bo-sung, .dia--thuc-an-bo-sung { --cat: var(--c-thuc-an-bo-sung); }
.cat-tag--tri-benh, .dia--tri-benh { --cat: var(--c-tri-benh); }

/* ---------- Product grid & card ---------- */
.pgrid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-5) var(--space-4); }
@media (min-width: 700px) { .pgrid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 1000px) { .pgrid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-6) var(--space-5); } }
.pcard[hidden] { display: none; }
.pcard__link { display: flex; flex-direction: column; height: 100%; text-decoration: none; color: inherit; }
.pcard__media { border-radius: var(--radius-m); overflow: hidden; background: var(--blue-050); }
.pcard__media img { width: 100%; aspect-ratio: 532 / 840; object-fit: cover; object-position: top; transition: transform 300ms var(--ease); }
.pcard__link:hover .pcard__media img { transform: scale(1.03); }
.pcard__body { padding-top: var(--space-3); display: flex; flex-direction: column; gap: 4px; }
.pcard__name { font-family: var(--font-display); font-stretch: 85%; font-weight: 800; font-size: 1.2rem; color: var(--heading); line-height: 1.15; }
.pcard__link:hover .pcard__name { color: var(--link); }
.pcard__tagline { font-size: 0.9rem; color: var(--muted); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* ---------- Posts ---------- */
.post-list { display: grid; gap: var(--space-5); }
.post-list--two { margin-top: var(--space-6); }
@media (min-width: 800px) { .post-list--two { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-6); } .post-list--three { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.post-item { display: grid; grid-template-columns: 132px minmax(0, 1fr); gap: var(--space-4); align-items: start; padding-bottom: var(--space-5); border-bottom: 1px solid var(--line); }
@media (min-width: 600px) { .post-item { grid-template-columns: 200px minmax(0, 1fr); gap: var(--space-5); } }
.post-list--three .post-item { grid-template-columns: 1fr; }
.post-item__media img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; border-radius: var(--radius-s); }
.post-item__title { font-size: var(--step-1); font-weight: 700; line-height: 1.3; }
.post-item__title a { color: var(--heading); text-decoration: none; }
.post-item__title a:hover { color: var(--link); text-decoration: underline; }
.post-item__excerpt { margin-top: var(--space-2); color: var(--muted); font-size: 0.95rem; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.post-item__meta { margin-top: var(--space-2); font-size: var(--step--1); color: var(--muted); }
@media (max-width: 599px) { .post-item__excerpt { display: none; } }
.post-lead { display: grid; gap: var(--space-5); align-items: center; padding-bottom: var(--space-6); border-bottom: 1px solid var(--line); }
@media (min-width: 860px) { .post-lead { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--space-7); } }
.post-lead__media img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: var(--radius-m); }
.post-lead__title { font-size: var(--step-4); margin-block: var(--space-2) var(--space-4); }
.post-lead__title a { color: inherit; text-decoration: none; }
.post-lead__title a:hover { color: var(--link); }
.post-lead .btn { margin-top: var(--space-5); }

/* ---------- OEM band ---------- */
.oem-band { background: var(--band); color: var(--on-ink); padding-block: var(--space-8); }
.oem-band .h2 { color: #fff; max-width: 18ch; }
.oem-band .lead { color: var(--on-ink); margin-block: var(--space-4) var(--space-5); }
.oem-band__grid { display: grid; gap: var(--space-7); align-items: center; }
@media (min-width: 960px) { .oem-band__grid { grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); } }
.oem-band__photo { margin: 0; }
.oem-band__photo img { width: 100%; border-radius: var(--radius-l); aspect-ratio: 16 / 9; object-fit: cover; }
.ticks { list-style: none; display: grid; gap: var(--space-3); margin-bottom: var(--space-6); }
.ticks li { display: flex; gap: var(--space-3); align-items: flex-start; }
.ticks .ico { color: var(--sun); margin-top: 3px; }

/* ---------- Certificates & photos ---------- */
.certs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-4); }
@media (min-width: 800px) { .certs { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-5); } }
.cert { display: block; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-m); padding: var(--space-3); cursor: zoom-in; transition: border-color 160ms var(--ease); }
.cert:hover { border-color: var(--link); }
.cert img { width: 100%; aspect-ratio: 3 / 4; object-fit: contain; }
.cert-intro { margin-block: var(--space-3) var(--space-6); }
.photo-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-3); margin-top: var(--space-5); }
@media (min-width: 800px) { .photo-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-4); } .photo-grid--dense { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.photo-grid a { display: block; cursor: zoom-in; border-radius: var(--radius-s); overflow: hidden; }
.photo-grid img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform 300ms var(--ease); }
.photo-grid a:hover img { transform: scale(1.04); }

/* ---------- Quick contact ---------- */
.quick-contact { background: var(--blue-050); border-top: 1px solid var(--line); }
.quick-contact__grid { display: grid; gap: var(--space-6); align-items: center; }
@media (min-width: 900px) { .quick-contact__grid { grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: var(--space-8); } }
.quick-contact__intro .lead { margin-block: var(--space-4) var(--space-5); }
.phone-big { display: inline-flex; align-items: center; gap: 12px; font-family: var(--font-display); font-stretch: 78%; font-weight: 800; font-size: var(--step-5); color: var(--link); text-decoration: none; line-height: 1; }
.phone-big .ico { width: 0.7em; height: 0.7em; }
.phone-big:hover { color: var(--heading); }
.quick-contact__alt { margin-top: var(--space-3); color: var(--muted); }

/* ---------- Forms ---------- */
.form { display: grid; gap: var(--space-4); }
.form--card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-l); padding: var(--space-6) var(--space-5); }
@media (min-width: 600px) { .form--card { padding: var(--space-6); } }
.form__title { font-family: var(--font-display); font-stretch: 85%; font-weight: 800; font-size: var(--step-2); color: var(--heading); }
.form__row { display: grid; gap: var(--space-4); }
@media (min-width: 600px) { .form__row { grid-template-columns: 1fr 1fr; } }
.field { display: grid; gap: 6px; }
.field label { font-weight: 600; font-size: 0.95rem; }
.field .opt { font-weight: 400; color: var(--muted); }
.field input, .field select, .field textarea {
  width: 100%; min-height: 48px; padding: 10px 14px; border: 1.5px solid var(--line-strong); border-radius: var(--radius-s); background: var(--field-bg); font-size: 1rem;
  transition: border-color 150ms var(--ease), box-shadow 150ms var(--ease);
}
.field textarea { resize: vertical; min-height: 120px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--link); box-shadow: 0 0 0 3px color-mix(in srgb, var(--blue) 22%, transparent); }
.field--invalid input, .field input[aria-invalid='true'] { border-color: var(--danger); }
.field__error { color: var(--danger); font-size: 0.875rem; font-weight: 500; }
.field__error:empty { display: none; }
.field__help { color: var(--muted); font-size: 0.875rem; }
.field--search { position: relative; }
.field--search .ico { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--muted); pointer-events: none; }
.field--search input { padding-left: 44px; }
.form__status { font-weight: 600; }
.form__status:empty { display: none; }
.form__status.is-ok { color: var(--ok); }
.form__status.is-error { color: var(--danger); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.notice { display: flex; gap: var(--space-4); padding: var(--space-5); border-radius: var(--radius-m); margin-bottom: var(--space-5); }
.notice--ok { background: color-mix(in srgb, var(--ok) 12%, var(--surface)); border: 1px solid color-mix(in srgb, var(--ok) 40%, var(--surface)); }
.notice--ok .ico { color: var(--ok); width: 28px; height: 28px; }
.notice p { margin-top: 4px; }

/* ---------- Page head ---------- */
.page-head { background: var(--surface); border-bottom: 1px solid var(--line); padding-block: var(--space-5) var(--space-7); }
.page-head__title { font-size: var(--step-5); line-height: 1.02; margin-top: var(--space-4); max-width: 20ch; }
.page-head__lead { margin-top: var(--space-4); font-size: var(--step-1); color: var(--muted); max-width: 62ch; }
.page-head--ink { background: var(--band); color: var(--on-ink); border: 0; padding-bottom: var(--space-8); }
.page-head--ink .page-head__title { color: #fff; }
.page-head--ink .page-head__lead { color: var(--on-ink); }
.page-head--ink .crumbs a, .page-head--ink .crumbs li { color: var(--on-ink-muted); }
.page-head--ink .crumbs [aria-current] { color: var(--on-ink); }
.page-head__split { display: grid; gap: var(--space-6); align-items: end; }
@media (min-width: 960px) { .page-head__split { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--space-8); } }
.page-head__photo { margin: 0; }
.page-head__photo img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--radius-l); }

.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 4px 0; font-size: var(--step--1); color: var(--muted); padding-top: var(--space-3); }
.crumbs li { display: inline-flex; align-items: center; }
.crumbs li + li::before { content: '/'; margin-inline: 8px; opacity: 0.6; }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--link); text-decoration: underline; }
.crumbs li { min-width: 0; max-width: 100%; }
.crumbs [aria-current] { display: block; color: var(--text); max-width: min(40ch, 72vw); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------- Catalog ---------- */
.catalog { display: grid; gap: var(--space-6); padding-block: var(--space-6) var(--space-8); }
@media (min-width: 1000px) { .catalog { grid-template-columns: 280px minmax(0, 1fr); gap: var(--space-7); } .filters { position: sticky; top: calc(var(--header-h) + 20px); align-self: start; max-height: calc(100vh - var(--header-h) - 40px); overflow-y: auto; padding-right: 4px; } }
.filters { display: grid; gap: var(--space-5); }
.filters__group { border: 0; padding: 0; margin: 0; display: grid; gap: 2px; min-width: 0; }
.catalog > * { min-width: 0; }
.filters__radios { display: grid; gap: 2px; }
.filters__group legend { font-family: var(--font-display); font-stretch: 85%; font-weight: 800; font-size: 1.15rem; color: var(--heading); margin-bottom: var(--space-2); padding: 0; }
.radio { display: flex; align-items: center; gap: var(--space-3); min-height: 44px; padding: 6px 10px; border-radius: var(--radius-s); cursor: pointer; }
.radio:hover { background: var(--surface); }
.radio input { accent-color: var(--link); width: 18px; height: 18px; margin: 0; }
.radio span { display: inline-flex; align-items: center; gap: 8px; flex: 1; font-weight: 500; }
.radio small { color: var(--muted); font-variant-numeric: tabular-nums; }
.radio:has(input:checked) { background: var(--surface); box-shadow: inset 0 0 0 1.5px var(--blue); }
.radio:has(input:focus-visible) { outline: 3px solid var(--sun); }
.filters__chips { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.chip--light { border-color: var(--line-strong); color: var(--heading); background: var(--surface); font-size: 0.9rem; min-height: 40px; padding: 6px 14px; }
.chip--light:hover { border-color: var(--link); color: var(--link); }
.chip--light { position: relative; }
.chip--light input { position: absolute; inset: 0; opacity: 0; pointer-events: none; }
.chip--light:has(input:checked) { background: var(--selected-bg); border-color: var(--selected-bg); color: var(--selected-fg); }
.chip--light:has(input:focus-visible) { outline: 3px solid var(--sun); outline-offset: 2px; }
.chip--sm { min-height: 36px; font-size: 0.85rem; }
@media (max-width: 999px) {
  .filters__radios { display: flex; flex-wrap: nowrap; overflow-x: auto; gap: var(--space-2); padding-bottom: 4px; scrollbar-width: thin; }
  .radio { flex: none; border: 1.5px solid var(--line-strong); background: var(--surface); border-radius: 999px; min-height: 40px; padding: 4px 14px; }
  .radio input { display: none; }
  .radio:has(input:checked) { background: var(--selected-bg); color: var(--selected-fg); border-color: var(--selected-bg); box-shadow: none; }
  .radio:has(input:checked) small { color: inherit; opacity: 0.7; }
  .filters__chips { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 4px; }
  .filters__chips .chip { flex: none; }
}
.catalog__count { font-weight: 600; color: var(--muted); margin-bottom: var(--space-4); }
.catalog__count span { color: var(--heading); font-variant-numeric: tabular-nums; }
.empty { text-align: center; padding: var(--space-7) var(--space-4); border: 1.5px dashed var(--line-strong); border-radius: var(--radius-l); display: grid; justify-items: center; gap: var(--space-3); }
.empty[hidden] { display: none; }

/* ---------- Product detail ---------- */
.product { display: grid; gap: var(--space-6); padding-block: var(--space-5) var(--space-8); }
@media (min-width: 900px) { .product { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--space-8); } .product__media { position: sticky; top: calc(var(--header-h) + 20px); align-self: start; } }
.product__media { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-3); }
.product__image { grid-column: 1 / -1; position: relative; display: block; cursor: zoom-in; border-radius: var(--radius-l); overflow: hidden; background: var(--blue-050); }
.product__image img { width: 100%; max-height: 78vh; object-fit: contain; margin-inline: auto; }
.product__zoom { position: absolute; right: 12px; top: 12px; background: rgba(11, 35, 71, 0.82); color: #fff; font-size: 0.8rem; font-weight: 600; padding: 6px 10px; border-radius: 999px; }
.product__thumb { border-radius: var(--radius-s); overflow: hidden; cursor: zoom-in; border: 1px solid var(--line); }
@media (max-width: 899px) { .product__image img { max-height: 60vh; width: auto; } }
.product__name { font-size: var(--step-5); line-height: 1; margin-top: var(--space-3); }
.product__tagline { margin-top: var(--space-3); font-size: var(--step-2); line-height: 1.4; color: var(--text); font-weight: 500; max-width: 40ch; }
.product__syms { margin-top: var(--space-5); }
.product__syms-label { font-size: var(--step--1); font-weight: 600; color: var(--muted); margin-bottom: var(--space-2); }
.tag-list { list-style: none; display: flex; flex-wrap: wrap; gap: var(--space-2); }
.buy-box { margin-top: var(--space-6); padding: var(--space-5); border-radius: var(--radius-l); background: var(--band); color: var(--on-ink); display: grid; gap: var(--space-3); }
.buy-box__title { font-family: var(--font-display); font-stretch: 85%; font-weight: 800; font-size: var(--step-2); color: #fff; }
.buy-box__row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.buy-box .btn--line { background: transparent; color: #fff; border-color: rgba(169, 185, 214, 0.45); }
.buy-box .btn--line:hover { border-color: #fff; color: #fff; }
.buy-box__note { font-size: var(--step--1); color: var(--on-ink-muted); }
.spec { margin-top: var(--space-7); display: grid; gap: var(--space-6); }
.spec__title { font-family: var(--font-display); font-stretch: 85%; font-weight: 800; font-size: var(--step-3); color: var(--heading); padding-bottom: var(--space-3); border-bottom: 2px solid var(--heading); margin-bottom: var(--space-4); }
.spec__note { font-size: 0.9rem; color: var(--muted); padding: var(--space-4); background: var(--surface); border-left: 3px solid var(--sun); border-radius: 0 var(--radius-s) var(--radius-s) 0; }
.dia-list { list-style: none; display: grid; gap: var(--space-3); }
.dia-list li { position: relative; padding-left: 22px; max-width: 70ch; }
.dia-list li::before { content: ''; position: absolute; left: 2px; top: 0.6em; width: 8px; height: 8px; background: var(--sun); transform: rotate(45deg); box-shadow: 0 0 0 1.5px var(--sun-600); }
.dose-list { list-style: none; display: grid; }
.dose-list li { padding-block: var(--space-3); border-bottom: 1px solid var(--line); max-width: 70ch; }
.dose-list li:first-child { padding-top: 0; }

/* ---------- Article ---------- */
.article__head { padding-bottom: var(--space-5); }
.article__title { font-size: var(--step-5); line-height: 1.04; margin-top: var(--space-4); max-width: 22ch; }
.article__meta { margin-top: var(--space-4); color: var(--muted); }
.article__cover { margin-block: var(--space-4) var(--space-6); }
.article__cover img { width: 100%; max-height: 520px; object-fit: cover; border-radius: var(--radius-l); }
.article__layout { display: grid; gap: var(--space-7); padding-bottom: var(--space-8); }
@media (min-width: 1000px) { .article__layout { grid-template-columns: minmax(0, 1fr) 320px; gap: var(--space-8); } .article__aside { position: sticky; top: calc(var(--header-h) + 24px); align-self: start; } }
.article__aside { display: grid; gap: var(--space-5); }
.aside-box { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-l); padding: var(--space-5); display: grid; gap: var(--space-3); }
.aside-box__title { font-family: var(--font-display); font-stretch: 85%; font-weight: 800; font-size: 1.2rem; color: var(--heading); }
.aside-box--ink { background: var(--band); color: var(--on-ink); border: 0; }
.aside-box--ink .aside-box__title { color: #fff; }
.mini-products { list-style: none; display: grid; gap: var(--space-3); }
.mini-products a { display: grid; grid-template-columns: 52px 1fr; gap: var(--space-3); align-items: center; text-decoration: none; color: inherit; }
.mini-products img { width: 52px; aspect-ratio: 532 / 760; object-fit: cover; object-position: top; border-radius: 4px; }
.mini-products strong { display: block; font-family: var(--font-display); font-stretch: 85%; color: var(--heading); }
.mini-products small { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; color: var(--muted); font-size: 0.8rem; line-height: 1.35; }
.mini-products a:hover strong { color: var(--link); }

.prose { font-size: 1.075rem; line-height: 1.75; max-width: 72ch; }
.prose > * + * { margin-top: 1em; }
.prose h3 { display: block; font-family: var(--font-display); font-stretch: 85%; font-weight: 800; font-size: var(--step-2); color: var(--heading); line-height: 1.25; margin-top: 0.8em; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li + li { margin-top: 0.4em; }
.prose img { border-radius: var(--radius-m); margin-block: var(--space-4); cursor: zoom-in; }
.prose table { border-collapse: collapse; width: 100%; font-size: 0.95rem; display: block; overflow-x: auto; }
.prose td, .prose th { border: 1px solid var(--line); padding: 8px 10px; vertical-align: top; }
.prose--lead { font-size: var(--step-1); }

/* ---------- About ---------- */
.about-intro { display: grid; gap: var(--space-7); }
@media (min-width: 960px) { .about-intro { grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: var(--space-8); } }
.about-facts { margin: 0; display: grid; gap: 0; border-top: 2px solid var(--heading); }
.about-facts div { padding-block: var(--space-4); border-bottom: 1px solid var(--line); }
.about-facts dt { font-family: var(--font-display); font-stretch: 80%; font-weight: 800; font-size: var(--step-3); color: var(--link); line-height: 1.1; }
.about-facts dd { margin: 4px 0 0; color: var(--muted); }
.mvv { display: grid; gap: var(--space-6); }
@media (min-width: 900px) { .mvv { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-7); } }
.mvv__item { display: grid; gap: var(--space-3); align-content: start; padding-top: var(--space-4); border-top: 2px solid var(--sun); }
.videos { display: grid; gap: var(--space-5); margin-top: var(--space-5); }
@media (min-width: 800px) { .videos { grid-template-columns: 1fr 1fr; } }
.yt { position: relative; aspect-ratio: 16 / 9; border-radius: var(--radius-m); overflow: hidden; background: var(--band); }
.yt img { width: 100%; height: 100%; object-fit: cover; opacity: 0.85; }
.yt iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.yt__play { position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; gap: 8px; color: #fff; text-decoration: none; font-weight: 600; }
.yt__play .ico { width: 64px; height: 64px; padding: 18px; background: var(--sun); color: var(--sun-ink); border-radius: 50%; fill: currentColor; stroke: none; }

/* ---------- OEM page ---------- */
.services { display: grid; gap: var(--space-5); margin-top: var(--space-6); }
@media (min-width: 700px) { .services { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1100px) { .services { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.service { display: grid; gap: var(--space-3); align-content: start; padding-top: var(--space-4); border-top: 1px solid var(--line-strong); }
.service .ico { color: var(--link); }
.service h3 { font-size: var(--step-1); font-weight: 700; color: var(--heading); }
.service p { color: var(--muted); }
.oem-lines { list-style: none; display: grid; gap: 0; border-top: 1px solid var(--line); }
.oem-lines li { padding-block: var(--space-5); border-bottom: 1px solid var(--line); display: grid; gap: var(--space-2); }
.oem-lines h3 { font-family: var(--font-display); font-stretch: 85%; font-weight: 800; font-size: var(--step-2); color: var(--heading); }
.oem-lines p { color: var(--muted); max-width: 60ch; }
.steps { list-style: none; counter-reset: step; display: grid; gap: var(--space-5); margin-top: var(--space-6); }
@media (min-width: 900px) { .steps { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.steps li { counter-increment: step; display: grid; gap: var(--space-2); align-content: start; }
.steps li::before { content: counter(step); font-family: var(--font-display); font-stretch: 75%; font-weight: 800; font-size: 2.6rem; line-height: 1; color: var(--link); }
.steps h3 { font-size: var(--step-1); font-weight: 700; color: var(--heading); }
.steps p { color: var(--muted); }

/* ---------- Contact ---------- */
.contact { display: grid; gap: var(--space-7); }
@media (min-width: 960px) { .contact { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--space-8); } }
.phone-big--dark { color: var(--heading); }
.phone-big--dark:hover { color: var(--link); }
.contact__hint { color: var(--muted); margin-top: var(--space-2); }
.contact__list { margin: var(--space-6) 0; display: grid; gap: 0; border-top: 1px solid var(--line); }
.contact__list div { display: grid; grid-template-columns: 140px 1fr; gap: var(--space-3); padding-block: var(--space-3); border-bottom: 1px solid var(--line); }
.contact__list dt { font-weight: 600; color: var(--muted); }
.contact__list dd { margin: 0; }
@media (max-width: 480px) { .contact__list div { grid-template-columns: 1fr; gap: 2px; } }
.map { border-radius: var(--radius-l); overflow: hidden; border: 1px solid var(--line); aspect-ratio: 4 / 3; background: var(--blue-050); }
.map iframe { width: 100%; height: 100%; border: 0; }

/* ---------- Policy ---------- */
.policy { display: grid; gap: var(--space-6); }
@media (min-width: 900px) { .policy { grid-template-columns: 260px minmax(0, 1fr); gap: var(--space-8); } }
.policy__nav ul { list-style: none; display: grid; gap: 2px; border-left: 2px solid var(--line); }
.policy__nav a { display: block; padding: 10px 16px; color: var(--heading); text-decoration: none; margin-left: -2px; border-left: 2px solid transparent; }
.policy__nav a:hover { color: var(--link); }
.policy__nav a[aria-current] { border-left-color: var(--sun); font-weight: 600; color: var(--link); }

/* ---------- 404 & admin ---------- */
.notfound { max-width: 720px; }
.notfound .lead { margin-top: var(--space-4); }
.notfound__search { margin-top: var(--space-6); max-width: 480px; }
.table-wrap { overflow-x: auto; margin-top: var(--space-5); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-m); }
.table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.table th, .table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.table th { background: var(--paper); white-space: nowrap; }

/* ---------- Footer ---------- */
.site-footer { background: var(--band); color: var(--on-ink-muted); padding-top: var(--space-8); font-size: 0.95rem; }
.site-footer a { color: var(--on-ink); text-decoration: none; }
.site-footer a:hover { color: var(--sun); text-decoration: underline; }
.site-footer__grid { display: grid; gap: var(--space-6); padding-bottom: var(--space-7); }
@media (min-width: 760px) { .site-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1100px) { .site-footer__grid { grid-template-columns: 1.3fr 1.4fr 1fr 1fr; gap: var(--space-7); } }
.site-footer__brand { display: grid; gap: var(--space-4); align-content: start; }
.site-footer__cert { display: inline-flex; align-items: center; gap: 8px; color: var(--sun); font-weight: 600; }
.site-footer__title { font-family: var(--font-display); font-stretch: 85%; font-weight: 800; font-size: 1.15rem; color: #fff; margin-bottom: var(--space-4); }
.contact-list, .link-list { list-style: none; display: grid; gap: var(--space-3); }
.contact-list li { display: grid; grid-template-columns: 20px 1fr; gap: var(--space-3); }
.contact-list .ico { margin-top: 3px; color: var(--sun); }
.site-footer__legal { border-top: 1px solid rgba(169, 185, 214, 0.2); padding-block: var(--space-5); font-size: var(--step--1); }

/* ---------- Mobile action bar ---------- */
.action-bar { display: none; }
@media (max-width: 760px) {
  body { padding-bottom: calc(64px + env(safe-area-inset-bottom)); }
  .action-bar {
    display: grid; grid-template-columns: 1fr 1fr; position: fixed; left: 0; right: 0; bottom: 0; z-index: 45;
    background: var(--surface); border-top: 1px solid var(--line); padding-bottom: env(safe-area-inset-bottom);
    box-shadow: 0 -8px 24px -18px rgba(11, 35, 71, 0.5);
  }
  .action-bar a { display: flex; align-items: center; justify-content: center; gap: 6px; min-height: 64px; font-weight: 600; font-size: 0.9rem; color: var(--heading); text-decoration: none; }
  .action-bar a:first-child { background: var(--sun); color: var(--sun-ink); }
  .action-bar a + a { border-left: 1px solid var(--line); }
}

/* ---------- Lightbox ---------- */
.lightbox { width: 100vw; height: 100vh; max-width: none; max-height: none; margin: 0; padding: 0; border: 0; background: rgba(6, 18, 38, 0.94); color: #fff; }
.lightbox[open] { display: grid; grid-template-columns: 64px 1fr 64px; align-items: center; }
.lightbox::backdrop { background: rgba(6, 18, 38, 0.6); }
.lightbox__figure { margin: 0; display: grid; justify-items: center; gap: 12px; padding: 56px 0 24px; max-height: 100vh; }
.lightbox__figure img { max-width: 100%; max-height: calc(100vh - 120px); object-fit: contain; border-radius: 6px; }
.lightbox__figure figcaption { color: var(--on-ink-muted); font-size: 0.9rem; text-align: center; }
.lightbox button { width: 48px; height: 48px; border-radius: 50%; border: 1px solid rgba(255, 255, 255, 0.3); background: rgba(255, 255, 255, 0.08); color: #fff; display: grid; place-items: center; cursor: pointer; justify-self: center; }
.lightbox button:hover { background: rgba(255, 255, 255, 0.18); }
.lightbox__close { position: absolute; top: 12px; right: 12px; }
.lightbox[data-single] .lightbox__nav { visibility: hidden; }
@media (max-width: 600px) { .lightbox[open] { grid-template-columns: 44px 1fr 44px; } .lightbox__nav { width: 40px !important; height: 40px !important; } }

/* ---------- Motion preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* ---------- On-page editor (admin only) ---------- */
.editor { position: fixed; left: calc(16px + env(safe-area-inset-left, 0px)); bottom: calc(16px + env(safe-area-inset-bottom, 0px)); z-index: 60; display: flex; flex-direction: column; align-items: flex-start; gap: 10px; }
@media (max-width: 760px) { .editor { bottom: calc(76px + env(safe-area-inset-bottom, 0px)); } }
.editor__fab { width: 56px; height: 56px; border-radius: 50%; border: 0; background: var(--sun); color: var(--sun-ink); display: grid; place-items: center; cursor: pointer; box-shadow: 0 8px 24px -8px rgba(11, 35, 71, 0.55); transition: background-color 160ms var(--ease), transform 160ms var(--ease); }
.editor__fab:hover { background: var(--sun-600); }
.editor__fab svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.editor__fab[aria-pressed='true'] { background: var(--band); color: var(--sun); }
.editor__panel { width: min(340px, calc(100vw - 32px)); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-l); padding: var(--space-4) var(--space-5); box-shadow: 0 18px 48px -18px rgba(11, 35, 71, 0.5); display: grid; gap: 8px; font-size: 0.9rem; }
.editor__panel[hidden] { display: none; }
.editor__title { font-family: var(--font-display); font-stretch: 85%; font-weight: 800; font-size: 1.15rem; color: var(--heading); }
.editor__hint, .editor__links { color: var(--muted); }
.editor__count { font-weight: 600; color: var(--heading); }
.editor__status { font-weight: 600; color: var(--link); }
.editor__status:empty { display: none; }
.editor__actions { display: flex; gap: 8px; }
.editor__actions button { min-height: 44px; padding: 8px 16px; border-radius: var(--radius-s); font-weight: 600; cursor: pointer; border: 2px solid var(--line-strong); background: var(--surface); color: var(--heading); }
.editor__actions .editor__save { background: var(--blue); border-color: var(--link); color: #fff; }
.editor__actions .editor__save[disabled] { opacity: 0.5; cursor: default; }
.is-editing [data-edit] { outline: 1.5px dashed color-mix(in srgb, var(--blue) 70%, transparent); outline-offset: 3px; border-radius: 3px; cursor: text; }
.is-editing [data-edit]:hover { background: color-mix(in srgb, var(--sun) 18%, transparent); }
.is-editing [data-edit]:focus { outline: 2px solid var(--sun); background: color-mix(in srgb, var(--sun) 12%, transparent); }
.is-editing .hero [data-edit], .is-editing .oem-band [data-edit], .is-editing .page-head--ink [data-edit], .is-editing .site-footer [data-edit], .is-editing .buy-box [data-edit], .is-editing .aside-box--ink [data-edit] { outline-color: color-mix(in srgb, var(--sun) 80%, transparent); }
.admin-login { max-width: 520px; display: grid; gap: var(--space-5); }
.notice--warn { background: color-mix(in srgb, var(--sun) 22%, var(--surface)); border: 1px solid var(--sun-600); }

/* ---------- Light / dark toggle ---------- */
.theme-toggle { width: 48px; height: 48px; border: 1px solid var(--line); background: var(--surface); color: var(--heading); border-radius: var(--radius-s); display: inline-grid; place-items: center; cursor: pointer; transition: border-color 160ms var(--ease), color 160ms var(--ease); }
.theme-toggle:hover { border-color: var(--link); color: var(--link); }
.theme-toggle .ico--sun { display: none; }
:root[data-theme='dark'] .theme-toggle .ico--sun { display: block; }
:root[data-theme='dark'] .theme-toggle .ico--moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) .theme-toggle .ico--sun { display: block; }
  :root:not([data-theme='light']) .theme-toggle .ico--moon { display: none; }
}

/* ---------- Floating Zalo / Messenger buttons (stay on screen while scrolling) ---------- */
.float-chat { position: fixed; right: calc(16px + env(safe-area-inset-right, 0px)); bottom: calc(24px + env(safe-area-inset-bottom, 0px)); z-index: 35; display: flex; flex-direction: column; gap: 12px; }
@media (max-width: 760px) { .float-chat { bottom: calc(80px + env(safe-area-inset-bottom, 0px)); gap: 10px; } }
.float-chat__btn { position: relative; width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center; text-decoration: none; color: #fff; box-shadow: 0 10px 24px -10px rgba(5, 15, 34, 0.6); transition: transform 180ms var(--ease); animation: float-in 420ms var(--ease) both; }
.float-chat__btn:hover, .float-chat__btn:focus-visible { transform: translateY(-2px) scale(1.04); color: #fff; }
.float-chat__btn--zalo { background: #0068ff; }
.float-chat__btn--messenger { background: linear-gradient(160deg, #00b2ff, #006aff 60%, #a033ff); animation-delay: 80ms; }
.float-chat__btn--messenger svg { width: 30px; height: 30px; fill: #fff; }
.float-chat__zalo { font-family: var(--font-display); font-stretch: 90%; font-weight: 800; font-size: 0.95rem; letter-spacing: 0.01em; }
/* A soft ring on Zalo, the channel most farmers use, so the button is noticed without moving the page. */
.float-chat__btn--zalo::after { content: ''; position: absolute; inset: 0; border-radius: 50%; border: 2px solid #0068ff; animation: float-ring 2.6s ease-out 1.2s infinite; pointer-events: none; }
.float-chat__tip { position: absolute; right: calc(100% + 10px); top: 50%; transform: translateY(-50%); white-space: nowrap; background: var(--band); color: #fff; font-size: 0.85rem; font-weight: 600; padding: 6px 10px; border-radius: var(--radius-s); opacity: 0; pointer-events: none; transition: opacity 150ms var(--ease); }
.float-chat__btn:hover .float-chat__tip, .float-chat__btn:focus-visible .float-chat__tip { opacity: 1; }
@media (max-width: 760px) { .float-chat__btn { width: 52px; height: 52px; } .float-chat__tip { display: none; } }
@keyframes float-in { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@keyframes float-ring { 0% { transform: scale(1); opacity: 0.7; } 70%, 100% { transform: scale(1.45); opacity: 0; } }
body.menu-open .float-chat { display: none; }
@media (prefers-reduced-motion: reduce) { .float-chat__btn, .float-chat__btn--zalo::after { animation: none; } }

/* =========================================================
   Premium layer: top bar, trust badges, solutions, stages,
   knowledge hub, article reading experience
   ========================================================= */

/* Top bar */
.topbar { background: var(--band); color: var(--on-ink-muted); font-size: 0.82rem; }
.topbar__row { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 36px; }
.topbar__note { display: inline-flex; align-items: center; gap: 8px; }
.topbar__note .ico { color: var(--sun); width: 1em; height: 1em; }
.topbar__links { display: flex; gap: 20px; }
.topbar a { color: var(--on-ink); text-decoration: none; }
.topbar a:hover { color: var(--sun); }
@media (max-width: 860px) { .topbar__links { display: none; } .topbar__row { justify-content: center; text-align: center; } }
@media (max-width: 520px) { .topbar { font-size: 0.75rem; } }

/* Section headings get a short gold rule: the one recurring brand accent */
.section-head .h2::before, .faq-wrap .h2::before, .why .h2::before, .section > .wrap > .h2::before {
  content: ''; display: block; width: 44px; height: 3px; border-radius: 2px; background: var(--sun); margin-bottom: 14px;
}
.section-head__lead { margin-top: 10px; color: var(--muted); max-width: 60ch; }
.section-head--light .h2 { color: #fff; }
.section-head--light .section-head__lead { color: var(--on-ink-muted); }
.text-link--light { color: var(--sun); text-decoration-color: color-mix(in srgb, var(--sun) 45%, transparent); }
.text-link--light:hover { color: #fff; }

/* Hero trust badges */
.badges { list-style: none; display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: var(--space-5); }
.badges li { display: inline-flex; align-items: center; gap: 8px; color: var(--on-ink); font-weight: 600; font-size: 0.95rem; }
.badges .ico { color: var(--sun); }

/* Solution tiles */
.soltiles { list-style: none; display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr)); gap: var(--space-4); }
.soltile a {
  position: relative; display: grid; gap: 8px; align-content: start; height: 100%; padding: var(--space-5); padding-top: calc(var(--space-5) + 4px);
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-l); text-decoration: none; color: inherit; overflow: hidden;
  transition: border-color 200ms var(--ease), transform 200ms var(--ease), box-shadow 200ms var(--ease);
}
.soltile a::before { content: ''; position: absolute; inset: 0 0 auto; height: 4px; background: linear-gradient(90deg, var(--sun), color-mix(in srgb, var(--sun) 30%, transparent)); }
.soltile a:hover { border-color: var(--line-strong); transform: translateY(-3px); box-shadow: 0 18px 36px -24px rgba(11, 35, 71, 0.45); }
.soltile__label { font-size: 0.85rem; font-weight: 600; color: var(--link); }
.soltile__title { font-family: var(--font-display); font-stretch: 82%; font-weight: 800; font-size: 1.3rem; line-height: 1.18; color: var(--heading); }
.soltile__more { margin-top: auto; padding-top: 6px; font-size: 0.9rem; font-weight: 600; color: var(--muted); }
.soltile a:hover .soltile__more { color: var(--link); }

/* Stages band: a real sequence, so it is numbered */
.stages { background: var(--band); color: var(--on-ink); padding-block: var(--space-8); }
.stage-list { list-style: none; counter-reset: stage; display: grid; gap: var(--space-5); }
@media (min-width: 900px) { .stage-list { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-4); } }
.stage { counter-increment: stage; position: relative; display: grid; gap: 10px; align-content: start; padding: var(--space-5); border: 1px solid rgba(169, 185, 214, 0.22); border-radius: var(--radius-l); background: rgba(255, 255, 255, 0.03); }
.stage::before { content: counter(stage, decimal-leading-zero); font-family: var(--font-display); font-stretch: 75%; font-weight: 800; font-size: 2.4rem; line-height: 1; color: var(--sun); }
.stage__when { font-family: var(--font-display); font-stretch: 85%; font-weight: 800; font-size: 1.35rem; color: #fff; }
.stage__goal { color: var(--on-ink-muted); font-size: 0.95rem; }
.stage__products { list-style: none; display: grid; gap: 8px; margin-top: 6px; }
.stage__products a { display: grid; grid-template-columns: 36px 1fr; gap: 10px; align-items: center; color: var(--on-ink); text-decoration: none; font-weight: 600; font-size: 0.92rem; }
.stage__products img { width: 36px; aspect-ratio: 532 / 760; object-fit: cover; object-position: top; border-radius: 4px; }
.stage__products a:hover span { color: var(--sun); text-decoration: underline; }

/* Why Noben */
.why { display: grid; gap: var(--space-7); align-items: center; }
@media (min-width: 960px) { .why { grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: var(--space-8); } }
.why > * { min-width: 0; }
.why__photo { margin: 0; position: relative; }
.why__photo img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; object-position: 60% 50%; border-radius: var(--radius-l); }
.why__photo::after { content: ''; position: absolute; inset: 14px -14px -14px 14px; border: 2px solid var(--sun); border-radius: var(--radius-l); z-index: -1; }
@media (max-width: 959px) { .why__photo img { aspect-ratio: 16 / 10; } .why__photo::after { display: none; } }
.why__list { margin: var(--space-5) 0 0; display: grid; gap: 0; border-top: 1px solid var(--line); }
.why__list div { padding-block: var(--space-4); border-bottom: 1px solid var(--line); display: grid; gap: 4px; }
.why__list dt { font-family: var(--font-display); font-stretch: 85%; font-weight: 800; font-size: 1.2rem; color: var(--heading); }
.why__list dd { margin: 0; color: var(--muted); }

/* Topic chips */
.topic-nav { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: var(--space-6); }
.topic-chip { display: inline-flex; align-items: center; gap: 8px; min-height: 42px; padding: 8px 16px; border-radius: 999px; border: 1.5px solid var(--line-strong); background: var(--surface); color: var(--heading); text-decoration: none; font-weight: 600; font-size: 0.92rem; }
.topic-chip span { color: var(--muted); font-weight: 500; font-variant-numeric: tabular-nums; }
.topic-chip:hover { border-color: var(--link); color: var(--link); }
.topic-chip[aria-current='page'] { background: var(--selected-bg); border-color: var(--selected-bg); color: var(--selected-fg); }
.topic-chip[aria-current='page'] span { color: inherit; opacity: 0.75; }
@media (max-width: 640px) { .topic-nav { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 4px; } .topic-chip { flex: none; } }

/* Article cards */
.agrid { display: grid; gap: var(--space-6) var(--space-5); grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); margin-top: var(--space-6); }
.acard { display: grid; gap: 14px; align-content: start; }
.acard__media { display: block; border-radius: var(--radius-m); overflow: hidden; background: var(--blue-050); }
.acard__media img { width: 100%; aspect-ratio: 1200 / 630; object-fit: cover; transition: transform 400ms var(--ease); }
.acard:hover .acard__media img { transform: scale(1.035); }
.acard__body { display: grid; gap: 8px; }
.acard__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 14px; font-size: 0.82rem; color: var(--muted); }
.acard__topic { font-weight: 700; color: var(--link); text-decoration: none; }
.acard__topic:hover { text-decoration: underline; }
.acard__title { font-size: 1.12rem; font-weight: 700; line-height: 1.35; }
.acard__title a { color: var(--heading); text-decoration: none; }
.acard__title a:hover { color: var(--link); }
.acard__excerpt { color: var(--muted); font-size: 0.95rem; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.acard--big .acard__title { font-family: var(--font-display); font-stretch: 80%; font-weight: 800; font-size: clamp(1.6rem, 1.2rem + 1.2vw, 2.2rem); line-height: 1.12; }
.acard--big .acard__excerpt { font-size: 1.02rem; -webkit-line-clamp: 4; }
.kfeature { display: grid; gap: var(--space-6); }
@media (min-width: 1000px) { .kfeature { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--space-7); } }
.kfeature > * { min-width: 0; }
.kfeature__side { display: grid; gap: var(--space-5); align-content: start; }
.kfeature__side .acard { grid-template-columns: 150px minmax(0, 1fr); gap: 16px; align-items: start; }
.kfeature__side .acard__media img { aspect-ratio: 4 / 3; }
@media (max-width: 520px) { .kfeature__side .acard { grid-template-columns: 110px minmax(0, 1fr); } .kfeature__side .acard__title { font-size: 1rem; } }

/* Knowledge / solutions header */
.khead { background: var(--surface); border-bottom: 1px solid var(--line); padding-block: var(--space-4) var(--space-6); }
.khead__grid { display: grid; gap: var(--space-5); align-items: end; margin-bottom: var(--space-5); }
@media (min-width: 960px) { .khead__grid { grid-template-columns: minmax(0, 1fr) 380px; gap: var(--space-7); } }
.khead__title { font-family: var(--font-display); font-stretch: 78%; font-weight: 800; font-size: var(--step-5); line-height: 1.02; color: var(--heading); margin-top: var(--space-4); }
.khead__lead { margin-top: var(--space-4); font-size: var(--step-1); color: var(--muted); max-width: 62ch; }
.khead .topic-nav { margin-bottom: 0; }

/* Solution page */
.sol-hero { background: var(--band); color: var(--on-ink); padding-block: var(--space-5) var(--space-8); }
.sol-hero .crumbs a, .sol-hero .crumbs li { color: var(--on-ink-muted); }
.sol-hero .crumbs [aria-current] { color: var(--on-ink); }
.sol-hero__grid { display: grid; gap: var(--space-6); align-items: start; }
@media (min-width: 960px) { .sol-hero__grid { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--space-8); } }
.sol-hero__grid > * { min-width: 0; }
.sol-hero__title { font-family: var(--font-display); font-stretch: 78%; font-weight: 800; font-size: var(--step-5); line-height: 1.03; color: #fff; margin-top: var(--space-4); max-width: 20ch; }
.sol-hero__lead { margin-top: var(--space-4); font-size: var(--step-1); max-width: 60ch; }
.sol-card { background: var(--surface); color: var(--text); border-radius: var(--radius-l); padding: var(--space-5) var(--space-6); box-shadow: 0 24px 60px -30px rgba(0, 0, 0, 0.6); margin-top: var(--space-6); }
.sol-card__title { font-family: var(--font-display); font-stretch: 85%; font-weight: 800; font-size: 1.3rem; color: var(--heading); margin-bottom: var(--space-3); }
.checks { list-style: none; display: grid; gap: 10px; }
.checks li { display: grid; grid-template-columns: 22px 1fr; gap: 10px; align-items: start; }
.checks .ico { color: var(--c-tri-benh); margin-top: 3px; }
.steps--solution { grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)) !important; }
.steps--solution li { padding: var(--space-5); border: 1px solid var(--line); border-radius: var(--radius-l); background: var(--surface); }
.steps--solution p { color: var(--text); font-weight: 500; }
.sol-note { margin-top: var(--space-6); }
.faq-wrap { max-width: 900px; }
.product__solutions { margin-top: var(--space-4); color: var(--muted); font-size: 0.95rem; }
.product__solutions a { font-weight: 600; }

/* Article reading experience */
.ahero { background: var(--surface); border-bottom: 1px solid var(--line); padding-block: var(--space-4) var(--space-7); }
.ahero__grid { display: grid; gap: var(--space-6); align-items: center; }
@media (min-width: 1000px) { .ahero--cover .ahero__grid { grid-template-columns: minmax(0, 7fr) minmax(0, 6fr); gap: var(--space-7); } }
.ahero__grid > * { min-width: 0; }
.ahero__topic { display: inline-block; margin-top: var(--space-4); padding: 4px 12px; border-radius: 999px; background: var(--sun); color: var(--sun-ink); font-weight: 700; font-size: 0.82rem; text-decoration: none; }
.ahero__lead { margin-top: var(--space-4); font-size: var(--step-1); color: var(--muted); max-width: 62ch; }
.ahero__cover { margin: 0; }
.ahero__cover img { width: 100%; aspect-ratio: 1200 / 630; object-fit: cover; border-radius: var(--radius-l); box-shadow: 0 30px 60px -36px rgba(11, 35, 71, 0.6); }
.article__meta { display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: 0.9rem; }
.article__meta span + span::before { content: ''; display: inline-block; width: 4px; height: 4px; border-radius: 50%; background: var(--line-strong); margin-right: 18px; vertical-align: middle; }
.article__layout { padding-top: var(--space-7); }
.article__main { min-width: 0; }
.toc { border: 1px solid var(--line); background: var(--surface); border-radius: var(--radius-m); padding: var(--space-4) var(--space-5); margin-bottom: var(--space-6); max-width: 72ch; }
.toc summary { cursor: pointer; font-family: var(--font-display); font-stretch: 85%; font-weight: 800; font-size: 1.1rem; color: var(--heading); }
.toc ol { margin-top: var(--space-3); padding-left: 1.3em; display: grid; gap: 6px; }
.toc a { color: var(--link); text-decoration: none; }
.toc a:hover { text-decoration: underline; }
.prose--article { font-size: 1.1rem; line-height: 1.8; }
.prose--article h2 { font-family: var(--font-display); font-stretch: 80%; font-weight: 800; font-size: clamp(1.55rem, 1.3rem + 0.8vw, 2rem); line-height: 1.15; color: var(--heading); margin-top: 1.8em; padding-top: 0.2em; scroll-margin-top: calc(var(--header-h) + 24px); }
.prose--article h2::before { content: ''; display: block; width: 36px; height: 3px; border-radius: 2px; background: var(--sun); margin-bottom: 12px; }
.prose--article h3 { font-family: var(--font-display); font-stretch: 85%; font-weight: 800; font-size: 1.3rem; color: var(--heading); margin-top: 1.4em; scroll-margin-top: calc(var(--header-h) + 24px); }
.prose--article strong { color: var(--heading); }
.prose--article ul li::marker { color: var(--sun-600); }
.prose--article ol li::marker { color: var(--link); font-weight: 700; }
.prose .table-wrap { margin-block: 1.2em; border: 1px solid var(--line); border-radius: var(--radius-m); overflow-x: auto; background: var(--surface); }
.prose .table-wrap table { display: table; margin: 0; }
.prose th { background: var(--blue-050); color: var(--heading); text-align: left; }
.prose td, .prose th { padding: 10px 14px; }
.faq-block { margin-top: var(--space-7); max-width: 72ch; }
.faq-block__title { font-family: var(--font-display); font-stretch: 80%; font-weight: 800; font-size: clamp(1.55rem, 1.3rem + 0.8vw, 2rem); color: var(--heading); margin-bottom: var(--space-4); scroll-margin-top: calc(var(--header-h) + 24px); }
.faq { display: grid; gap: 10px; }
.faq__item { border: 1px solid var(--line); border-radius: var(--radius-m); background: var(--surface); }
.faq__item summary { cursor: pointer; list-style: none; padding: 16px 52px 16px 20px; font-weight: 700; color: var(--heading); position: relative; }
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after { content: '+'; position: absolute; right: 18px; top: 50%; transform: translateY(-50%); width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; background: var(--blue-050); color: var(--link); font-size: 1.2rem; line-height: 1; }
.faq__item[open] summary::after { content: '–'; background: var(--sun); color: var(--sun-ink); }
.faq__a { padding: 0 20px 18px; color: var(--text); }
.faq__a p + p { margin-top: 0.6em; }
.author-box { margin-top: var(--space-7); display: grid; grid-template-columns: 56px 1fr; gap: 16px; padding: var(--space-5); border-radius: var(--radius-l); background: var(--blue-050); max-width: 72ch; font-size: 0.95rem; color: var(--muted); }
.author-box__name { font-weight: 700; color: var(--heading); margin-bottom: 4px; }
.share { margin-top: var(--space-5); display: flex; flex-wrap: wrap; align-items: center; gap: 10px; font-size: 0.92rem; color: var(--muted); }
.share a, .share__copy { padding: 6px 14px; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--surface); color: var(--heading); text-decoration: none; font-weight: 600; cursor: pointer; font-size: 0.88rem; }
.share a:hover, .share__copy:hover { border-color: var(--link); color: var(--link); }
.aside-links { list-style: none; display: grid; gap: 8px; }
.aside-links a { font-weight: 600; text-decoration: none; }
.aside-links a:hover { text-decoration: underline; }
.aside-box--ink .btn--ghost { margin-top: 2px; }

/* Product cards: a soft plinth and lift for a more premium shelf */
.pcard__media { background: linear-gradient(180deg, var(--blue-050), color-mix(in srgb, var(--blue-050) 40%, var(--surface))); box-shadow: inset 0 0 0 1px var(--line); transition: box-shadow 220ms var(--ease), transform 220ms var(--ease); }
.pcard__link:hover .pcard__media { transform: translateY(-4px); box-shadow: inset 0 0 0 1px var(--line-strong), 0 22px 40px -26px rgba(11, 35, 71, 0.55); }
.pcard__link:hover .pcard__media img { transform: none; }

/* =========================================================
   Product presentation: cut-out packages on lit plinths,
   3D carousel, drag-to-turn stage
   ========================================================= */
.cat-bg--sinh-hoc { --cat: var(--c-sinh-hoc); }
.cat-bg--khoang-chat { --cat: var(--c-khoang-chat); }
.cat-bg--thuc-an-bo-sung { --cat: var(--c-thuc-an-bo-sung); }
.cat-bg--tri-benh { --cat: var(--c-tri-benh); }

/* Product card: the package stands on a softly lit plinth tinted by its group colour */
.pcard__link { gap: 0; }
.pcard .pcard__media {
  --rx: 0deg; --ry: 0deg; --gx: 50%; --gy: 30%;
  position: relative; aspect-ratio: 4 / 5; border-radius: var(--radius-l); overflow: hidden; perspective: 900px;
  background:
    radial-gradient(120% 70% at 50% 18%, color-mix(in srgb, var(--cat, var(--blue)) 16%, var(--surface)) 0%, var(--surface) 62%),
    var(--surface);
  box-shadow: inset 0 0 0 1px var(--line), 0 1px 0 rgba(255, 255, 255, 0.5) inset;
  transition: box-shadow 260ms var(--ease), transform 260ms var(--ease);
}
.pcard .pcard__media::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 24%; background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--cat, var(--blue)) 9%, var(--surface))); pointer-events: none; }
.pcard .pcard__img {
  position: absolute; left: 50%; bottom: 11%; z-index: 1;
  width: auto; height: auto; max-width: 84%; max-height: 82%; aspect-ratio: auto; object-fit: contain;
  transform: translateX(-50%) rotateX(var(--rx)) rotateY(var(--ry));
  transform-origin: 50% 90%;
  filter: drop-shadow(0 16px 14px rgba(11, 35, 71, 0.28)) drop-shadow(0 3px 3px rgba(11, 35, 71, 0.18));
  transition: transform 320ms var(--ease), filter 320ms var(--ease);
}
.pcard .pcard__img:not(.is-cutout) { inset: 0; left: 0; bottom: 0; max-width: none; max-height: none; width: 100%; height: 100%; object-fit: cover; object-position: top; transform: none; filter: none; }
.pcard__floor { position: absolute; left: 50%; bottom: 7.5%; width: 62%; height: 8%; transform: translateX(-50%); border-radius: 50%; background: radial-gradient(closest-side, rgba(11, 35, 71, 0.32), transparent); filter: blur(2px); z-index: 0; transition: width 320ms var(--ease), opacity 320ms var(--ease); }
.pcard__glare { position: absolute; inset: 0; z-index: 2; pointer-events: none; opacity: 0; background: radial-gradient(40% 32% at var(--gx) var(--gy), rgba(255, 255, 255, 0.55), transparent 70%); mix-blend-mode: soft-light; transition: opacity 260ms var(--ease); }
.pcard__link:hover .pcard__media { transform: none; box-shadow: inset 0 0 0 1px var(--line-strong), 0 26px 46px -30px rgba(11, 35, 71, 0.6); }
.pcard .pcard__link:hover .pcard__media .pcard__img { transform: translateX(-50%) translateY(-6px) rotateX(var(--rx)) rotateY(var(--ry)); filter: drop-shadow(0 26px 18px rgba(11, 35, 71, 0.3)) drop-shadow(0 4px 4px rgba(11, 35, 71, 0.18)); }
.pcard__link:hover .pcard__floor { width: 50%; opacity: 0.75; }
.pcard__link:hover .pcard__glare { opacity: 1; }
.pcard__body { padding: var(--space-4) 4px 0; }
.pcard__name { font-size: 1.3rem; }
.pcard__cta { margin-top: 6px; font-size: 0.88rem; font-weight: 700; color: var(--link); }
.pcard__link:hover .pcard__cta { text-decoration: underline; }

/* Hero finder: packages on glass tiles */
.finder__shot { position: relative; display: block; aspect-ratio: 3 / 4; border-radius: var(--radius-m); background: radial-gradient(90% 60% at 50% 30%, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.04)); box-shadow: inset 0 0 0 1px rgba(169, 185, 214, 0.22); margin-bottom: 8px; overflow: hidden; }
.finder__list .finder__shot img { position: absolute; left: 50%; bottom: 8%; transform: translateX(-50%); width: auto; height: auto; max-width: 82%; max-height: 86%; aspect-ratio: auto; object-fit: contain; border-radius: 0; background: none; margin: 0; filter: drop-shadow(0 10px 10px rgba(0, 0, 0, 0.35)); transition: transform 240ms var(--ease); }
.finder__list a:hover .finder__shot img { transform: translateX(-50%) translateY(-5px) scale(1.04); }

/* Group shelf on the home page: four packages standing on a shelf */
.group__shelf { align-items: end; border-bottom: 2px solid color-mix(in srgb, var(--cat) 35%, transparent); padding-bottom: 6px; }
.group__item { display: flex; align-items: flex-end; justify-content: center; height: 150px; }
.group__shelf .group__item img { width: auto; height: auto; max-width: 100%; max-height: 100%; aspect-ratio: auto; object-fit: contain; border-radius: 0; filter: drop-shadow(0 10px 8px rgba(11, 35, 71, 0.22)); transition: transform 240ms var(--ease); }
.group__link:hover .group__item img { transform: translateY(-4px); }
@media (max-width: 859px) { .group__item { height: 110px; } }

/* Small package thumbnails */
.stage__shot { display: grid; place-items: center; width: 40px; height: 48px; border-radius: 6px; background: rgba(255, 255, 255, 0.08); }
.stage__products .stage__shot img { width: auto; height: auto; max-width: 34px; max-height: 44px; aspect-ratio: auto; object-fit: contain; border-radius: 0; }
.stage__products a { grid-template-columns: 40px 1fr; }
.mini-products__shot { display: grid; place-items: center; width: 52px; height: 64px; border-radius: 8px; background: var(--blue-050); }
.mini-products .mini-products__shot img { width: auto; height: auto; max-width: 44px; max-height: 58px; aspect-ratio: auto; object-fit: contain; border-radius: 0; }

/* ---------- 3D carousel ---------- */
.showcase { background: radial-gradient(70% 60% at 50% 38%, #18407c 0%, var(--band) 62%), var(--band); color: var(--on-ink); padding-block: var(--space-8) var(--space-7); overflow: hidden; }
:root[data-theme='dark'] .showcase { background: radial-gradient(70% 60% at 50% 38%, #10305f 0%, var(--band) 62%), var(--band); }
.showcase__hint { display: inline-flex; align-items: center; gap: 10px; color: var(--on-ink-muted); font-size: 0.9rem; }
.showcase__hand { position: relative; width: 28px; height: 18px; border-radius: 9px; border: 1.5px solid currentColor; }
.showcase__hand::after { content: ''; position: absolute; top: 50%; left: 4px; width: 6px; height: 6px; margin-top: -3px; border-radius: 50%; background: var(--sun); animation: sc-hand 2.2s var(--ease) infinite; }
@keyframes sc-hand { 0%, 100% { transform: translateX(0); } 50% { transform: translateX(12px); } }
.showcase__stage {
  position: relative; height: clamp(320px, 42vw, 520px); perspective: 1400px; perspective-origin: 50% 40%;
  cursor: grab; touch-action: pan-y; user-select: none; -webkit-user-select: none; outline: none;
}
.showcase__stage:focus-visible { box-shadow: inset 0 0 0 3px var(--sun); }
.showcase__stage.is-dragging { cursor: grabbing; }
.showcase__track { list-style: none; margin: 0; padding: 0; position: absolute; inset: 0; transform-style: preserve-3d; }
.showcase__item {
  position: absolute; left: 50%; bottom: 20%; width: clamp(150px, 20vw, 270px); height: 72%; margin-left: calc(clamp(150px, 20vw, 270px) / -2);
  display: flex; align-items: flex-end; justify-content: center; transform-style: preserve-3d; will-change: transform;
}
.showcase:not(.is-ready) .showcase__item:not(:first-child) { opacity: 0; }
.showcase__item a { display: flex; align-items: flex-end; justify-content: center; width: 100%; height: 100%; -webkit-user-drag: none; }
.showcase__item img {
  max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; pointer-events: none;
  filter: drop-shadow(0 30px 26px rgba(0, 0, 0, 0.45));
  -webkit-box-reflect: below 2px linear-gradient(transparent 74%, rgba(255, 255, 255, 0.16));
  transition: transform 400ms var(--ease);
}
.showcase__item.is-active img { transform: translateY(-6px); }
.showcase__floor { position: absolute; left: 50%; bottom: 13%; width: min(560px, 70%); height: 70px; transform: translateX(-50%); border-radius: 50%; background: radial-gradient(closest-side, rgba(255, 194, 14, 0.18), rgba(255, 255, 255, 0.04) 60%, transparent); pointer-events: none; }
.showcase__bar { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: var(--space-4); margin-top: calc(var(--space-6) * -1); position: relative; z-index: 5; }
.showcase__nav { width: 52px; height: 52px; border-radius: 50%; border: 1.5px solid rgba(169, 185, 214, 0.4); background: rgba(255, 255, 255, 0.06); color: #fff; display: grid; place-items: center; cursor: pointer; transition: background-color 160ms var(--ease), border-color 160ms var(--ease); }
.showcase__nav:hover { background: var(--sun); border-color: var(--sun); color: var(--sun-ink); }
.showcase__info { text-align: center; display: grid; justify-items: center; gap: 6px; min-height: 196px; align-content: start; }
.showcase__cat { --cat: var(--sun); font-size: 0.85rem; }
.showcase .cat-tag { filter: brightness(1.5) saturate(0.9); }
.showcase__name { font-family: var(--font-display); font-stretch: 80%; font-weight: 800; font-size: clamp(1.8rem, 1.3rem + 1.6vw, 2.8rem); color: #fff; line-height: 1.05; }
.showcase__tagline { color: var(--on-ink); max-width: 52ch; }
.showcase__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: var(--space-3); }
.showcase__count { color: var(--on-ink-muted); font-size: 0.85rem; font-variant-numeric: tabular-nums; margin-top: 4px; }
@media (max-width: 640px) {
  .showcase__bar { grid-template-columns: 1fr 1fr; }
  .showcase__info { grid-column: 1 / -1; grid-row: 1; }
  .showcase__nav { justify-self: center; }
  .showcase__item { width: 150px; margin-left: -75px; }
}

/* ---------- Product page stage: drag to turn ---------- */
.product__media { display: grid; gap: var(--space-4); grid-template-columns: 1fr; }
.stage3d {
  --shadow-x: 0px;
  position: relative; aspect-ratio: 4 / 5; border-radius: var(--radius-l); overflow: hidden; perspective: 1100px;
  background:
    radial-gradient(80% 55% at 50% 22%, color-mix(in srgb, var(--cat, var(--blue)) 22%, var(--surface)) 0%, transparent 70%),
    linear-gradient(180deg, var(--surface) 0%, color-mix(in srgb, var(--cat, var(--blue)) 10%, var(--surface)) 100%);
  box-shadow: inset 0 0 0 1px var(--line);
  cursor: grab; touch-action: pan-y; user-select: none; -webkit-user-select: none;
}
.stage3d.is-dragging { cursor: grabbing; }
.stage3d:focus-visible { outline: 3px solid var(--sun); outline-offset: 3px; }
.stage3d__spot { position: absolute; left: 50%; top: -20%; width: 90%; height: 70%; transform: translateX(-50%); background: radial-gradient(closest-side, rgba(255, 255, 255, 0.55), transparent); pointer-events: none; }
:root[data-theme='dark'] .stage3d__spot { background: radial-gradient(closest-side, rgba(255, 255, 255, 0.12), transparent); }
.stage3d__obj { --rx: 0deg; --ry: 0deg; --gx: 50%; position: absolute; left: 0; right: 0; top: 7%; bottom: 17%; display: flex; align-items: flex-end; justify-content: center; transform: rotateX(var(--rx)) rotateY(var(--ry)); transform-style: preserve-3d; transform-origin: 50% 85%; }
.stage3d__obj img { max-width: 78%; max-height: 100%; width: auto; height: auto; object-fit: contain; pointer-events: none; filter: drop-shadow(0 30px 24px rgba(11, 35, 71, 0.3)) drop-shadow(0 4px 5px rgba(11, 35, 71, 0.2)); -webkit-box-reflect: below 2px linear-gradient(transparent 82%, rgba(255, 255, 255, 0.22)); }
.stage3d__obj img:not(.is-cutout) { max-width: 100%; border-radius: var(--radius-m); -webkit-box-reflect: unset; }
.stage3d__glare { position: absolute; inset: 0; pointer-events: none; background: linear-gradient(105deg, transparent 30%, rgba(255, 255, 255, 0.28) calc(var(--gx) - 4%), transparent calc(var(--gx) + 14%)); mix-blend-mode: soft-light; }
.stage3d__shadow { position: absolute; left: 50%; bottom: 12%; width: 58%; height: 7%; transform: translateX(calc(-50% + var(--shadow-x))); border-radius: 50%; background: radial-gradient(closest-side, rgba(11, 35, 71, 0.35), transparent); filter: blur(3px); pointer-events: none; }
.stage3d__hint { position: absolute; left: 50%; bottom: 4%; transform: translateX(-50%); display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 999px; background: color-mix(in srgb, var(--surface) 80%, transparent); color: var(--muted); font-size: 0.8rem; font-weight: 600; pointer-events: none; transition: opacity 300ms var(--ease); }
.stage3d.is-touched .stage3d__hint { opacity: 0; }
.product__views { display: grid; gap: var(--space-3); grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.product__view { display: grid; grid-template-columns: 56px 1fr; gap: 12px; align-items: center; padding: 10px 14px 10px 10px; border: 1px solid var(--line); border-radius: var(--radius-m); background: var(--surface); text-decoration: none; color: var(--text); cursor: zoom-in; }
.product__view:hover { border-color: var(--link); }
.product__view img { width: 56px; height: 72px; object-fit: cover; object-position: top; border-radius: 6px; }
.product__view strong { display: block; color: var(--heading); }
.product__view small { color: var(--muted); font-size: 0.82rem; }
@media (max-width: 899px) { .stage3d { aspect-ratio: 1 / 1; max-height: 70vh; } }

@media (prefers-reduced-motion: reduce) {
  .showcase__hand::after { animation: none; }
  .pcard .pcard__img, .showcase__item img { transition: none; }
}

/* Hero: three packages standing in front of the factory photo */
.hero__trio { position: relative; z-index: 2; display: flex; justify-content: center; align-items: flex-end; margin-top: -30%; padding-inline: 4%; }
.hero__trio::before { content: ''; position: absolute; left: 10%; right: 10%; bottom: -4%; height: 18%; border-radius: 50%; background: radial-gradient(closest-side, rgba(0, 0, 0, 0.55), transparent); filter: blur(4px); }
.hero__trio-item { position: relative; display: block; margin-inline: -2.5%; transition: transform 260ms var(--ease); }
.hero__trio-item img { display: block; width: auto; height: clamp(150px, 15vw, 230px); max-width: none; aspect-ratio: auto; object-fit: contain; border-radius: 0; filter: drop-shadow(0 18px 16px rgba(0, 0, 0, 0.5)); }
.hero__trio-item.is-center { z-index: 2; }
.hero__trio-item.is-center img { height: clamp(185px, 19vw, 285px); }
.hero__trio-item:hover { transform: translateY(-6px); }
.hero__photo figcaption { margin-top: var(--space-4); }
@media (max-width: 999px) { .hero__trio { margin-top: -22%; } .hero__trio-item img { height: 130px; } .hero__trio-item.is-center img { height: 165px; } }

/* Footer: five columns, legal block for the Ministry of Industry and Trade notice */
@media (min-width: 1100px) { .site-footer__grid { grid-template-columns: 1.25fr 1.35fr 1fr 0.9fr 1.05fr; gap: var(--space-6); } }
@media (min-width: 760px) and (max-width: 1099px) { .site-footer__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } .site-footer__brand { grid-column: 1 / -1; } }
.site-footer__legal { display: grid; gap: var(--space-4); align-items: center; }
@media (min-width: 900px) { .site-footer__legal { grid-template-columns: minmax(0, 1fr) auto; } .legal-info__copy { grid-column: 1 / -1; } }
.legal-info { display: grid; gap: 4px; font-size: 0.86rem; color: var(--on-ink-muted); }
.legal-info strong { color: #fff; font-size: 0.95rem; }
.legal-info__admin { color: var(--sun); }
.bct-badge img { display: block; width: 150px; height: auto; }
.legal-info__copy { font-size: 0.82rem; color: var(--on-ink-muted); padding-top: var(--space-3); border-top: 1px solid rgba(169, 185, 214, 0.15); }

/* Policy pages */
.policy__meta { font-size: 1rem; }
.policy__nav { align-self: start; }
@media (min-width: 900px) { .policy__nav { position: sticky; top: calc(var(--header-h) + 20px); } }
.policy__nav-title { font-family: var(--font-display); font-stretch: 85%; font-weight: 800; font-size: 1.1rem; color: var(--heading); margin-bottom: var(--space-3); }
.policy__help { margin-top: var(--space-5); padding: var(--space-4); border-radius: var(--radius-m); background: var(--blue-050); display: grid; gap: 10px; font-weight: 600; color: var(--heading); }
.policy__main { min-width: 0; }
.prose--policy { max-width: 76ch; }
.prose--policy h2:first-child { margin-top: 0; }
.info-table th { width: 42%; font-weight: 600; color: var(--muted); background: var(--blue-050); }
.info-table td { color: var(--heading); font-weight: 500; }
@media (max-width: 600px) { .info-table th, .info-table td { display: block; width: 100%; } .info-table th { border-bottom: 0; } }

/* ---------- Trợ lý Noben (chat) ---------- */
.float-chat__btn--bot { background: var(--sun); color: var(--sun-ink); border: 0; cursor: pointer; padding: 0; }
.float-chat__btn--bot:hover, .float-chat__btn--bot:focus-visible { color: var(--sun-ink); }
.float-chat__btn--bot svg { width: 30px; height: 30px; fill: var(--ink); }
.float-chat__btn--bot svg circle { fill: var(--sun); }
.float-chat__btn--zalo { animation-delay: 80ms; }
.float-chat__btn--messenger { animation-delay: 160ms; }
.chat-open .float-chat { display: none; }

.chatbot { position: fixed; right: calc(16px + env(safe-area-inset-right, 0px)); bottom: calc(24px + env(safe-area-inset-bottom, 0px)); z-index: 60; width: min(400px, calc(100vw - 32px)); height: min(640px, calc(100dvh - 48px)); display: flex; flex-direction: column; background: var(--surface); color: var(--text); border: 1px solid var(--line); border-radius: var(--radius-l); box-shadow: 0 30px 60px -20px rgba(5, 15, 34, 0.55); overflow: hidden; animation: chat-in 220ms var(--ease) both; }
.chatbot[hidden] { display: none; }
@keyframes chat-in { from { opacity: 0; transform: translateY(12px) scale(0.98); } }
.chatbot__head { display: flex; align-items: center; gap: 10px; padding: 12px 10px 12px 14px; background: var(--band); color: #fff; }
.chatbot__avatar { width: 40px; height: 40px; border-radius: 50%; background: #fff; object-fit: contain; padding: 4px; flex: none; }
.chatbot__who { flex: 1; min-width: 0; }
.chatbot__name { margin: 0; font-family: var(--font-display); font-weight: 800; font-size: 1.05rem; line-height: 1.2; }
.chatbot__status { margin: 2px 0 0; font-size: 0.8rem; color: var(--on-ink-muted); display: flex; align-items: center; gap: 6px; }
.chatbot__dot { width: 8px; height: 8px; border-radius: 50%; background: #3ddc84; box-shadow: 0 0 0 3px rgba(61, 220, 132, 0.25); }
.chatbot__icon { width: 40px; height: 40px; display: grid; place-items: center; background: transparent; border: 0; color: #fff; border-radius: var(--radius-s); cursor: pointer; }
.chatbot__icon:hover, .chatbot__icon:focus-visible { background: rgba(255, 255, 255, 0.12); }
.chatbot__icon svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.chatbot__log { flex: 1; overflow-y: auto; overscroll-behavior: contain; padding: 16px 14px; display: flex; flex-direction: column; gap: 10px; background: var(--paper); }
.chatbot__msg { max-width: 88%; padding: 10px 13px; border-radius: 14px; font-size: 0.95rem; line-height: 1.5; overflow-wrap: anywhere; }
.chatbot__msg p { margin: 0; }
.chatbot__msg p + p, .chatbot__msg p + ul, .chatbot__msg ul + p, .chatbot__msg p + ol, .chatbot__msg ol + p { margin-top: 8px; }
.chatbot__msg ul, .chatbot__msg ol { margin: 0; padding-left: 1.2em; }
.chatbot__msg li + li { margin-top: 3px; }
.chatbot__msg a { color: var(--link); font-weight: 600; }
.chatbot__msg--bot { align-self: flex-start; background: var(--surface); border: 1px solid var(--line); border-bottom-left-radius: 4px; }
.chatbot__msg--user { align-self: flex-end; background: var(--blue); color: #fff; border-bottom-right-radius: 4px; white-space: pre-wrap; }
.chatbot__msg--error { border-color: var(--danger); }
.chatbot__typing { display: inline-flex; gap: 4px; padding: 4px 0; }
.chatbot__typing i { width: 7px; height: 7px; border-radius: 50%; background: var(--muted); animation: chat-dot 1s ease-in-out infinite; }
.chatbot__typing i:nth-child(2) { animation-delay: 0.15s; }
.chatbot__typing i:nth-child(3) { animation-delay: 0.3s; }
@keyframes chat-dot { 0%, 80%, 100% { opacity: 0.3; transform: translateY(0); } 40% { opacity: 1; transform: translateY(-3px); } }
.chatbot__chips { display: flex; flex-wrap: wrap; gap: 6px; padding: 10px 14px 0; background: var(--paper); }
.chatbot__chips[hidden] { display: none; }
.chatbot__chips button { font: inherit; font-size: 0.85rem; padding: 6px 11px; min-height: 34px; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--surface); color: var(--heading); cursor: pointer; }
.chatbot__chips button:hover, .chatbot__chips button:focus-visible { border-color: var(--blue); color: var(--link); }
.chatbot__human { display: flex; gap: 8px; padding: 10px 14px; background: var(--paper); border-bottom: 1px solid var(--line); }
.chatbot__human a { flex: 1; display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 38px; padding: 6px 8px; border-radius: var(--radius-s); font-size: 0.85rem; font-weight: 700; text-decoration: none; color: var(--heading); background: var(--surface); border: 1px solid var(--line); }
.chatbot__human a:hover, .chatbot__human a:focus-visible { border-color: var(--blue); color: var(--link); }
.chatbot__human .ico { width: 16px; height: 16px; }
.chatbot__zalo { display: inline-grid; place-items: center; height: 20px; padding: 0 5px; border-radius: 5px; background: #0068ff; color: #fff; font-family: var(--font-display); font-weight: 800; font-size: 0.7rem; }
.chatbot__form { display: flex; align-items: flex-end; gap: 8px; padding: 10px 12px; background: var(--surface); }
.chatbot__form textarea { flex: 1; resize: none; font: inherit; font-size: 1rem; line-height: 1.4; min-height: 44px; max-height: 120px; padding: 10px 12px; border-radius: 12px; border: 1px solid var(--line-strong); background: var(--field-bg); color: var(--text); }
.chatbot__form textarea:focus { outline: 2px solid var(--blue); outline-offset: 0; border-color: transparent; }
.chatbot__send { width: 44px; height: 44px; flex: none; border: 0; border-radius: 12px; background: var(--sun); color: var(--sun-ink); display: grid; place-items: center; cursor: pointer; }
.chatbot__send:disabled { opacity: 0.55; cursor: progress; }
.chatbot__send svg { width: 22px; height: 22px; fill: currentColor; }
.chatbot__note { margin: 0; padding: 0 14px 10px; font-size: 0.75rem; color: var(--muted); background: var(--surface); }
.chatbot__note a { color: var(--link); }
@media (max-width: 760px) {
  .chatbot { inset: 0; width: auto; height: auto; border-radius: 0; border: 0; }
  .chat-open .action-bar { display: none; }
  .chat-open body { overflow: hidden; }
}
@media (prefers-reduced-motion: reduce) { .chatbot, .chatbot__typing i { animation: none; } }

/* Product H1 descriptor and product FAQ */
.product__kind { display: block; margin-top: 6px; font-family: var(--font-body); font-stretch: normal; font-size: var(--step-1); font-weight: 600; line-height: 1.3; color: var(--muted); letter-spacing: 0; text-transform: none; }
.faq-block--product { margin-top: 0; }
.faq__a ul { padding-left: 1.25em; margin: 6px 0; }
.product__kind::first-letter { text-transform: uppercase; }

/* ---------- Hero with motion-graphic video ---------- */
.hero--video { position: relative; isolation: isolate; background: #031027; min-height: min(86vh, 860px); display: flex; align-items: center; }
.hero__bg { position: absolute; inset: 0; z-index: -1; overflow: hidden; }
.hero__video { width: 100%; height: 100%; object-fit: cover; object-position: 72% 45%; display: block; }
.hero__shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(3, 16, 39, 0.92) 0%, rgba(3, 16, 39, 0.72) 38%, rgba(3, 16, 39, 0.15) 70%, rgba(3, 16, 39, 0.05) 100%), linear-gradient(180deg, transparent 70%, rgba(3, 16, 39, 0.6)); }
.hero--video .hero__grid { width: 100%; }
.hero__aside { min-height: 1px; }
@media (max-width: 999px) {
  .hero--video { min-height: 0; }
  .hero__video { object-position: 72% 40%; }
  .hero__shade { background: linear-gradient(180deg, rgba(3, 16, 39, 0.55) 0%, rgba(3, 16, 39, 0.82) 45%, rgba(3, 16, 39, 0.95) 100%); }
  .hero__aside { display: none; }
}

/* ---------- Product tabs: one screen, aligned cards ---------- */
.prodtabs__tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: var(--space-5); }
.prodtabs__tab { display: inline-flex; align-items: center; gap: 9px; min-height: 46px; padding: 8px 16px; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--surface); color: var(--heading); font: inherit; font-weight: 600; font-size: 0.98rem; cursor: pointer; transition: background 160ms var(--ease), color 160ms var(--ease), border-color 160ms var(--ease); }
.prodtabs__tab:hover { border-color: var(--cat, var(--blue)); }
.prodtabs__tab[aria-selected="true"] { background: var(--selected-bg); border-color: var(--selected-bg); color: var(--selected-fg); }
.prodtabs__dot { width: 9px; height: 9px; transform: rotate(45deg); background: var(--cat, var(--blue)); flex: none; }
.prodtabs__count { font-size: 0.8rem; font-weight: 700; padding: 1px 8px; border-radius: 999px; background: color-mix(in srgb, currentColor 12%, transparent); }
.prodtabs__panel[hidden] { display: none; }
.prodtabs__more { margin-top: var(--space-5); text-align: center; }
/* Fit grid: two rows of products in one screen (5 across on wide screens, 10 per group). */
.pgrid--fit { gap: var(--space-4) var(--space-3); }
@media (min-width: 1000px) { .pgrid--fit { gap: var(--space-4); } .pgrid--fit > :nth-child(n+9) { display: none; } }
@media (min-width: 1200px) { .pgrid--fit { grid-template-columns: repeat(5, minmax(0, 1fr)); } .pgrid--fit > :nth-child(n+9) { display: block; } }
@media (min-width: 700px) and (max-width: 999px) { .pgrid--fit > :nth-child(n+10) { display: none; } }
.pgrid--fit .pcard .pcard__media { aspect-ratio: 1 / 1; }
.pgrid--fit .pcard .pcard__img { max-height: 82%; bottom: 9%; }
.pgrid--fit .pcard .cat-tag, .pgrid--fit .pcard__cta { display: none; }
.pgrid--fit .pcard__body { padding-top: 10px; gap: 2px; }
.pgrid--fit .pcard__name { font-size: 1.06rem; -webkit-line-clamp: 1; min-height: 0; }
.pgrid--fit .pcard__tagline { font-size: 0.84rem; line-height: 1.4; min-height: calc(2 * 1.4em); }
@media (max-width: 760px) {
  .prodtabs__tabs { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; margin-inline: calc(-1 * var(--gutter, 16px)); padding-inline: var(--gutter, 16px); scroll-snap-type: x proximity; }
  .prodtabs__tabs::-webkit-scrollbar { display: none; }
  .prodtabs__tab { flex: none; white-space: nowrap; scroll-snap-align: start; }
}

/* Every product card: same heights, name and tagline clamped, link on one baseline. */
.pcard__body { flex: 1; }
.pcard .cat-tag { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block; max-width: 100%; }
.pcard .cat-tag::before { display: inline-block; margin-right: 7px; vertical-align: 1px; }
.pcard__name { display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
.pcard__tagline { -webkit-line-clamp: 2; min-height: calc(2 * 1.5em); line-height: 1.5; }
.pcard__cta { margin-top: auto; padding-top: 6px; }

/* ---------- Quality control band ---------- */
.qc { background: linear-gradient(180deg, #031027, #0b2347); color: var(--on-ink); padding-block: var(--space-8); }
.qc__grid { display: grid; gap: var(--space-7); align-items: center; }
@media (min-width: 1000px) { .qc__grid { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--space-8); } }
.qc__grid > * { min-width: 0; }
.qc__frame { position: relative; border-radius: var(--radius-l); overflow: hidden; box-shadow: 0 40px 80px -30px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(169, 205, 255, 0.14); background: #031027; }
.qc__video { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.qc__sound { position: absolute; right: 14px; bottom: 14px; display: inline-flex; align-items: center; gap: 8px; min-height: 40px; padding: 6px 14px; border-radius: 999px; border: 1px solid rgba(255, 255, 255, 0.25); background: rgba(3, 16, 39, 0.6); color: #fff; font: inherit; font-size: 0.85rem; font-weight: 600; cursor: pointer; backdrop-filter: blur(6px); }
.qc__sound:hover { background: rgba(3, 16, 39, 0.85); }
.qc__sound .ico { width: 16px; height: 16px; }
.qc__certs { list-style: none; padding: 0; margin: var(--space-5) 0 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-3); }
.qc__certs li { padding: 14px 16px; border-radius: var(--radius-m); border: 1px solid rgba(169, 205, 255, 0.16); background: rgba(255, 255, 255, 0.03); }
.qc__certs strong { display: block; font-family: var(--font-display); font-stretch: 85%; font-weight: 800; font-size: 1.15rem; color: #fff; }
.qc__certs span { display: block; font-size: 0.82rem; color: var(--on-ink-muted); margin-top: 2px; }
@media (max-width: 560px) { .qc__certs { grid-template-columns: 1fr; } }
.qc__kicker { font-size: 0.85rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: var(--sun); }
.qc__title { color: #fff; margin-top: var(--space-3); }
.qc__lead { margin-top: var(--space-4); color: var(--on-ink); max-width: 52ch; }
.qc__steps { list-style: none; padding: 0; margin: var(--space-5) 0 var(--space-6); display: grid; gap: 2px; counter-reset: none; }
.qc__step { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 12px; padding: 12px 0; border-top: 1px solid rgba(169, 205, 255, 0.12); }
.qc__num { font-family: var(--font-display); font-stretch: 85%; font-weight: 800; font-size: 1.05rem; color: var(--sun); line-height: 1.5; }
.qc__step-title { font-size: 1.02rem; font-weight: 700; color: #fff; font-family: var(--font-body); }
.qc__step p { font-size: 0.92rem; color: var(--on-ink-muted); margin-top: 2px; }

/* About: motion graphic instead of the factory photo */
.page-head__photo--video video { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; object-position: 66% 50%; border-radius: var(--radius-l); display: block; background: #031027; }
@media (prefers-reduced-motion: reduce) { .hero__video, .page-head__photo--video video { animation: none; } }
@media (min-width: 1000px) and (max-width: 1199px) { .pgrid--fit .pcard .pcard__media { aspect-ratio: 4 / 3; } }

/* Playfair Display: modern lining figures everywhere (phone numbers, counts), softer tracking on big titles */
body { font-variant-numeric: lining-nums; }
.float-chat__zalo, .chatbot__zalo { font-family: var(--font-body); font-weight: 700; }
.hero__title, .page-head__title, .article__title, .product__name { letter-spacing: -0.01em; }

/* Scroll motion */
.rv { opacity: 0; transform: translateY(34px) scale(0.985); transition: opacity 700ms var(--ease) var(--rv-delay, 0ms), transform 800ms cubic-bezier(0.16, 1, 0.3, 1) var(--rv-delay, 0ms); will-change: opacity, transform; }
.rv.rv--from-top { transform: translateY(-26px) scale(0.985); }
.rv.is-in { opacity: 1; transform: none; }
.scroll-progress { position: fixed; left: 0; top: 0; z-index: 70; height: 3px; width: 100%; transform-origin: 0 50%; transform: scaleX(0); background: linear-gradient(90deg, var(--sun), #ffe08a); pointer-events: none; }
.site-header { transition: box-shadow 260ms var(--ease), background 260ms var(--ease); }
.site-header.is-scrolled { box-shadow: 0 10px 30px -18px rgba(11, 35, 71, 0.45); }
.brand img { transition: transform 300ms var(--ease); }
.site-header.is-scrolled .brand img { transform: scale(0.88); }
@media (prefers-reduced-motion: reduce) { .rv { opacity: 1; transform: none; transition: none; } .scroll-progress { display: none; } }