/* =========================================================================
   Vinaweb – Trang Giới thiệu
   Dùng chung biến màu, font, khung, nút, badge, header/footer với trang chủ
   (style.css). File này chỉ chứa phần riêng của trang.
   ========================================================================= */
:root {
  --ink: #0a0d24;          /* nền tối dùng chung với hero trang chủ */
  --red-soft: #ff5a60;     /* đỏ sáng hơn để đọc tốt trên nền tối */
  --ease-back: cubic-bezier(.34, 1.56, .64, 1);
}
.center { text-align: center; }
.ab-h2 { font-size: clamp(28px, 3vw, 36px); line-height: 1.32; }
.ab-h2 em { font-style: normal; color: var(--red); }
section[id], .infra[id], .mv__panel[id] { scroll-margin-top: 150px; }

/* ---------- Banner trang ---------- */
.phero { position: relative; isolation: isolate; overflow: hidden; padding: 170px 0 110px; color: #fff;
  background: radial-gradient(900px 600px at 85% 20%, rgba(186,19,26,.55), transparent 65%), radial-gradient(700px 500px at 0% 100%, rgba(63,70,160,.45), transparent 65%), var(--ink); }
.phero .hero__grid { z-index: -1; }
.phero__grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: center; }
.crumb { display: flex; align-items: center; gap: 10px; font-size: 15px; color: rgba(255,255,255,.7); }
.crumb a { transition: color .25s; }
.crumb a:hover { color: #fff; }
.crumb b { font-weight: 600; color: #ffb3b6; }
.phero__title { margin-top: 22px; font-size: clamp(30px, 4.2vw, 38px); line-height: 1.25; font-weight: 700; letter-spacing: -.015em; text-wrap: balance; }
.phero__title em { font-style: normal; background: linear-gradient(90deg, #ff6b70, #ffc59a); -webkit-background-clip: text; background-clip: text; color: transparent; }
.phero__lead { margin-top: 20px; max-width: 520px; font-size: 17px; line-height: 1.7; color: rgba(255,255,255,.78); }
.phero__lead b { color: #fff; font-weight: 600; }
.phero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.crumb, .phero__title, .phero__lead, .phero__actions { animation: pheroIn 1s var(--ease) both; }
.phero__title { animation-delay: .08s; } .phero__lead { animation-delay: .16s; } .phero__actions { animation-delay: .24s; }
@keyframes pheroIn { from { opacity: 0; translate: 0 24px; } }
.phero__visual { position: relative; animation: pheroIn 1.1s var(--ease) .2s both; }
.phero__photo { aspect-ratio: 4 / 3; border-radius: 24px; overflow: hidden; rotate: 2deg; box-shadow: 0 0 0 1px rgba(255,255,255,.16), 0 40px 80px -30px rgba(0,0,0,.8); }
.phero__photo img { width: 100%; height: 100%; object-fit: cover; animation: kenburns 14s ease-out both; }
@keyframes kenburns { from { scale: 1.12; } to { scale: 1; } }
.phero__chip { position: absolute; display: flex; align-items: center; gap: 12px; padding: 14px 18px; border-radius: 16px; background: rgba(255,255,255,.96); color: var(--black); box-shadow: 0 20px 40px -18px rgba(0,0,0,.6); animation: chipFloat 6s ease-in-out infinite; }
.phero__chip b { font-size: 30px; font-weight: 800; line-height: 1; color: var(--red); letter-spacing: -.03em; }
.phero__chip span { font-size: 13px; font-weight: 600; line-height: 1.3; }
.phero__chip--a { left: -26px; bottom: 34px; }
.phero__chip--b { right: -14px; top: -22px; animation-delay: -3s; }
@keyframes chipFloat { 50% { translate: 0 -10px; } }
.phero__hex { position: absolute; right: -70px; bottom: -80px; z-index: -1; width: 260px; height: 230px; fill: none; stroke: rgba(255,255,255,.28); stroke-width: 1; }

/* ---------- Thanh mục lục trang (viên thuốc nổi, bám dưới menu) ---------- */
.subnav { position: sticky; top: 106px; z-index: 15; display: flex; justify-content: center; height: 0; padding: 0 16px; pointer-events: none; }
.subnav__inner { position: relative; display: flex; gap: 2px; max-width: 100%; height: 52px; margin-top: -26px; padding: 5px; overflow-x: auto; scrollbar-width: none; pointer-events: auto;
  border-radius: 100px; background: rgba(255,255,255,.88); backdrop-filter: blur(14px) saturate(1.4); -webkit-backdrop-filter: blur(14px) saturate(1.4);
  box-shadow: 0 0 0 1px rgba(33,34,82,.08), 0 16px 40px -18px rgba(33,34,82,.35); }
.subnav__inner::-webkit-scrollbar { display: none; }
.subnav a { position: relative; z-index: 1; flex: none; display: grid; place-items: center; padding: 0 18px; border-radius: 100px; font-size: 14.5px; font-weight: 600; color: var(--gray); white-space: nowrap; transition: color .3s; }
.subnav a:hover { color: var(--red); }
.subnav a.is-active { color: #fff; }
.subnav__ink { position: absolute; top: 5px; bottom: 5px; left: 0; width: 0; border-radius: 100px; background: var(--red); opacity: 0; transition: left .45s var(--ease), width .45s var(--ease), opacity .3s; }
.subnav__ink.is-on { opacity: 1; }

/* ---------- Câu chuyện thương hiệu ---------- */
.story { position: relative; padding: 120px 0 130px; background: linear-gradient(#fff 0 55%, var(--beige) 55%); overflow: hidden; }
.hexdeco--story { left: -80px; right: auto; top: auto; bottom: 30px; }
.story__head { display: grid; grid-template-columns: 1.15fr 1fr; gap: 60px; align-items: end; }
.story__head .h2 { margin-top: 26px; color: var(--navy); }
.story__text p { font-size: 16px; line-height: 1.7; }
.story__text p + p { margin-top: 12px; }
.story__text b { color: var(--red); font-weight: 700; }
.story__grid { position: relative; margin-top: 56px; }
.story__media { aspect-ratio: 1160 / 560; border-radius: 20px; overflow: hidden; background: var(--ink); }
.story__media img { width: 100%; height: 100%; object-fit: cover; object-position: center 45%; }
.story__cards { position: absolute; right: -40px; bottom: -40px; display: grid; grid-template-columns: repeat(2, 230px); grid-template-rows: repeat(2, 240px); gap: 14px; }
.scard { position: relative; overflow: hidden; isolation: isolate; display: flex; flex-direction: column; justify-content: space-between; padding: 22px 20px 20px; border-radius: 18px; box-shadow: 0 18px 40px -14px rgba(0,0,0,.3); transition: transform .4s var(--ease), box-shadow .4s; }
.scard--red { color: #fff; background: radial-gradient(260px 200px at 100% 0%, rgba(255,255,255,.18), transparent 70%), linear-gradient(160deg, #cf2229, var(--red) 55%, #8f0a10); }
.scard--light { background: var(--beige); color: var(--text); box-shadow: 0 0 0 1px var(--line), 0 18px 40px -14px rgba(0,0,0,.2); }
.scard--a { grid-column: 2; grid-row: 1; }
.scard--b { grid-column: 1; grid-row: 2; }
.scard--c { grid-column: 2; grid-row: 2; }
.scard .stat__hex { width: 150px; height: 132px; right: -40px; bottom: -34px; }
.scard--red .stat__hex { color: #fff; --hx2: #fff; opacity: .3; }
.scard__label { font-size: 14px; font-weight: 600; padding-bottom: 9px; border-bottom: 1px solid rgba(255,255,255,.5); }
.scard--light .scard__label { border-color: var(--line); color: var(--black); }
.scard .stat__num { font-size: 46px; font-weight: 700; line-height: 1.3; color: inherit; }
.scard--light .stat__num { color: var(--red); }
.scard__unit { font-size: 14px; font-weight: 600; }
@media (hover: hover) { .scard:hover { transform: translateY(-6px); } }

/* ---------- Sứ mệnh – Tầm nhìn (cuộn kể chuyện) ---------- */
.mv { position: relative; padding: 130px 0 110px; background: var(--beige); overflow: clip; }
.mv__word { position: absolute; top: 40px; left: 0; white-space: nowrap; pointer-events: none; font-size: clamp(80px, 12vw, 200px); font-weight: 800; letter-spacing: -.02em; line-height: 1; color: transparent; -webkit-text-stroke: 1.5px rgba(186,19,26,.12); text-transform: uppercase; }
@media (prefers-reduced-motion: no-preference) {
  @supports (animation-timeline: view()) {
    .mv__word { animation: wordSlide linear both; animation-timeline: view(); }
    @keyframes wordSlide { from { translate: 5% 0; } to { translate: -35% 0; } }
  }
}
.mv__grid { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.mv__sticky { position: sticky; top: 160px; }
.mv__media { position: relative; aspect-ratio: 4 / 4.4; border-radius: 22px; overflow: hidden; background: var(--ink); box-shadow: 0 30px 60px -20px rgba(33,34,82,.35); }
.mv__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; scale: 1.08; clip-path: inset(0 0 100% 0); transition: opacity .6s var(--ease), scale 1.2s var(--ease), clip-path .9s cubic-bezier(.65,0,.35,1); }
.mv__img.is-active { opacity: 1; scale: 1; clip-path: inset(0 0 0 0); }
.mv__media::after { content: ""; position: absolute; inset: 50% 0 0; background: linear-gradient(transparent, rgba(10,13,36,.75)); pointer-events: none; }
.mv__counter { position: absolute; left: 24px; bottom: 26px; z-index: 2; color: #fff; font-size: 15px; font-weight: 600; }
.mv__count { font-size: 40px; font-weight: 800; margin-right: 6px; }
.mv__bar { position: absolute; z-index: 2; left: 24px; right: 24px; bottom: 16px; height: 3px; background: rgba(255,255,255,.35); border-radius: 2px; overflow: hidden; }
.mv__bar span { display: block; height: 100%; width: 50%; background: #fff; transition: translate .6s var(--ease); }
.mv__panel { min-height: 78vh; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; padding: 40px 0; }
.mv__panel + .mv__panel { border-top: 1px solid rgba(0,0,0,.08); }
.mv__kicker { display: inline-flex; align-items: center; gap: 12px; font-size: 15px; font-weight: 700; color: var(--red); text-transform: uppercase; letter-spacing: .08em; }
.mv__kicker i { font-style: normal; display: grid; place-items: center; width: 46px; height: 42px; background: var(--red); color: #fff; font-size: 15px; letter-spacing: 0; clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%); }
.mv__panel .h2 { margin-top: 18px; color: var(--navy); }
.mv__lead { margin-top: 18px; font-size: 17px; line-height: 1.75; }
.mv__list { list-style: none; width: 100%; margin-top: 26px; display: grid; gap: 12px; }
.mv__list li { display: grid; grid-template-columns: 150px 1fr; gap: 16px; align-items: baseline; padding: 16px 20px; background: #fff; border-radius: 14px; box-shadow: 0 4px 16px rgba(0,0,0,.05); transition: translate .4s var(--ease), box-shadow .4s var(--ease); }
.mv__list b { color: var(--red); font-size: 15.5px; }
.mv__list span { font-size: 14.5px; line-height: 1.6; color: var(--gray); }
@media (hover: hover) { .mv__list li:hover { translate: 8px 0; box-shadow: 0 10px 26px rgba(186,19,26,.12); } }

/* ---------- Giá trị cốt lõi (nền tối) ---------- */
.values { position: relative; isolation: isolate; padding: 120px 0; overflow: hidden; color: #fff; background: radial-gradient(900px 500px at 85% 0%, rgba(186,19,26,.45), transparent 60%), radial-gradient(700px 500px at 0% 100%, rgba(63,70,160,.35), transparent 65%), var(--ink); }
.values__hex { position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='84' height='48.5' viewBox='0 0 84 48.5'%3E%3Cpath d='M14 0H42L56 24.25L42 48.5H14L0 24.25ZM56 24.25H84' fill='none' stroke='%23fff' stroke-opacity='.075'/%3E%3C/svg%3E") 0 0 / 84px 48.5px;
  -webkit-mask: radial-gradient(900px 500px at 80% 10%, #000, transparent 75%); mask: radial-gradient(900px 500px at 80% 10%, #000, transparent 75%); }
.values .badge { background: transparent; border-color: rgba(255,255,255,.4); color: #fff; filter: none; }
.values .h2 em { color: var(--red-soft); }
.values__head { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; }
.values__head .h2 { margin-top: 24px; }
.values__lead { max-width: 340px; font-size: 16px; line-height: 1.7; color: rgba(255,255,255,.7); }
.vlist { display: flex; gap: 16px; height: 400px; margin-top: 56px; }
.value { position: relative; flex: 1 1 0; min-width: 0; overflow: hidden; isolation: isolate; display: flex; flex-direction: column; padding: 28px 26px; border-radius: 20px; border: 1px solid rgba(255,255,255,.12); background: linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02)); cursor: default; outline: none; transition: flex-grow .8s cubic-bezier(.65,0,.35,1), border-color .4s, opacity .7s var(--ease), translate .7s var(--ease); }
.value::before { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(260px 200px at 100% 0%, rgba(255,255,255,.18), transparent 70%), linear-gradient(160deg, #d0212a, #8e0a10); clip-path: circle(0% at 30% 100%); transition: clip-path .8s cubic-bezier(.65,0,.35,1); }
.value__no { font-size: 15px; font-weight: 700; color: rgba(255,255,255,.55); letter-spacing: .1em; }
.value__ic { display: grid; place-items: center; width: 64px; height: 64px; margin-top: auto; border-radius: 18px; background: rgba(255,255,255,.08); transition: background .4s, scale .5s var(--ease-back); }
.value__ic svg { width: 32px; height: 32px; fill: none; stroke: #fff; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.value h3 { margin-top: 22px; font-size: 22px; line-height: 1.3; font-weight: 700; white-space: nowrap; }
.value p { margin-top: 10px; font-size: 15px; line-height: 1.65; color: rgba(255,255,255,.88); width: 300px; max-width: none; opacity: 0; translate: 0 12px; max-height: 0; transition: opacity .4s var(--ease), translate .5s var(--ease), max-height .6s var(--ease); }
.value.is-open { flex-grow: 2.6; border-color: transparent; }
.value.is-open::before { clip-path: circle(150% at 30% 100%); }
.value.is-open .value__ic { background: rgba(255,255,255,.18); scale: 1.08; }
.value.is-open .value__no { color: #fff; }
.value.is-open p { opacity: 1; translate: 0 0; max-height: 120px; transition-delay: .25s; }

/* ---------- Năng lực ---------- */
.cap { padding: 120px 0 0; }
.cap__head { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; }
.cap__head .h2 { margin-top: 24px; max-width: 720px; color: var(--navy); }
.cap__lead { max-width: 380px; font-size: 16px; line-height: 1.7; color: var(--gray); }
.kpis { position: relative; isolation: isolate; margin-top: 60px; padding: 60px 0; color: #fff; overflow: hidden; background: radial-gradient(700px 300px at 10% 120%, rgba(0,0,0,.3), transparent 60%), radial-gradient(600px 300px at 95% -30%, rgba(255,255,255,.16), transparent 60%), linear-gradient(120deg, #cf2229, var(--red) 50%, #8f0a10); }
.kpis .values__hex { -webkit-mask: linear-gradient(90deg, transparent, #000); mask: linear-gradient(90deg, transparent, #000); }
.kpis__grid { display: grid; grid-template-columns: repeat(6, 1fr); }
.kpi { padding: 6px 22px; border-left: 1px solid rgba(255,255,255,.25); }
.kpi:first-child { border-left: 0; padding-left: 0; }
.kpi .stat__num { font-size: clamp(30px, 2.8vw, 44px); font-weight: 700; line-height: 1.3; color: #fff; }
.kpi__unit { font-size: 13px; font-weight: 600; opacity: .85; text-transform: uppercase; letter-spacing: .06em; }
.kpi__label { margin-top: 8px; font-size: 15px; line-height: 1.45; font-weight: 500; }
.capcards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 70px; }
.capc { position: relative; overflow: hidden; isolation: isolate; aspect-ratio: 465 / 600; display: flex; flex-direction: column; padding: 30px 28px; border-radius: 20px; box-shadow: 0 8px 30px rgba(0,0,0,.08); transition: transform .4s var(--ease), box-shadow .4s var(--ease), opacity .7s var(--ease), translate .7s var(--ease); }
.capc--img { color: #fff; }
.capc__bg { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--ease); }
.capc--img::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(186,19,26,.9), rgba(127,7,12,.82)); transition: opacity .5s var(--ease); }
.capc--light { background: var(--beige); box-shadow: inset 0 0 0 1px var(--line); }
.capc__no { font-size: 17px; font-weight: 600; padding-bottom: 14px; border-bottom: 1px solid rgba(255,255,255,.5); }
.capc--light .capc__no { border-color: var(--line); color: var(--black); }
.capc__body { margin-top: auto; }
.capc--light .capc__body { margin-top: 26px; }
.capc--light .capc__more { position: relative; z-index: 1; }
.capc h3 { font-size: clamp(22px, 2vw, 28px); line-height: 1.25; font-weight: 700; }
.capc--light h3 { color: var(--red); }
.capc p { margin-top: 12px; font-size: 15px; line-height: 1.65; }
.capc__more { display: inline-flex; align-items: center; gap: 10px; margin-top: 18px; font-size: 15px; font-weight: 600; }
.capc__more .btn__ic { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; background: #fff; color: var(--red); transition: rotate .4s var(--ease); }
.capc--light .capc__more { color: var(--red); }
.capc--light .capc__more .btn__ic { background: var(--red); color: #fff; }
.capc__more svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.capc__worker { position: absolute; right: -4%; bottom: 0; z-index: -1; width: 50%; height: auto; max-height: 40%; object-fit: contain; object-position: right bottom; transition: transform .8s var(--ease); transform-origin: bottom right; }
@media (hover: hover) {
  .capc:hover { transform: translateY(-8px); box-shadow: 0 26px 50px rgba(0,0,0,.16); }
  .capc:hover .capc__bg { transform: scale(1.08); }
  .capc:hover .capc__worker { transform: scale(1.05); }
  .capc:hover .capc__more .btn__ic { rotate: 45deg; }
}

/* Hoạt động: danh sách mở khi rê chuột + thư viện ảnh đổi bố cục */
.infra { display: grid; grid-template-columns: 1fr 1.15fr; gap: 60px; align-items: center; padding-top: 120px; padding-bottom: 110px; }
.infra .h2 { margin-top: 24px; color: var(--navy); }
.infra__list { margin-top: 32px; }
.infra__item { border-bottom: 1px solid var(--line); }
.infra__head { display: flex; width: 100%; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 0; border: 0; background: none; cursor: pointer; text-align: left; font: inherit; font-size: 20px; font-weight: 700; color: var(--black); transition: color .3s var(--ease); }
.infra__head i { position: relative; width: 36px; height: 36px; flex: none; border-radius: 50%; border: 1px solid var(--gray); transition: background .3s, border-color .3s, rotate .5s var(--ease); }
.infra__head i::before, .infra__head i::after { content: ""; position: absolute; left: 50%; top: 50%; width: 12px; height: 1.6px; background: var(--text); translate: -50% -50%; transition: background .3s, rotate .5s var(--ease); }
.infra__head i::after { rotate: 90deg; }
.infra__item.is-open .infra__head { color: var(--red); }
.infra__item.is-open .infra__head i { background: var(--red); border-color: var(--red); rotate: 180deg; }
.infra__item.is-open .infra__head i::before, .infra__item.is-open .infra__head i::after { background: #fff; }
.infra__item.is-open .infra__head i::after { rotate: 0deg; }
.infra__body { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .5s var(--ease); }
.infra__body > p { min-height: 0; overflow: hidden; font-size: 15.5px; line-height: 1.7; color: var(--text); opacity: 0; transition: opacity .4s var(--ease); }
.infra__item.is-open .infra__body { grid-template-rows: 1fr; }
.infra__item.is-open .infra__body > p { opacity: 1; padding-bottom: 20px; transition-delay: .15s; }
.gal { display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; gap: 14px; aspect-ratio: 1 / .82; }
.gal__item { position: relative; overflow: hidden; border: 0; border-radius: 18px; padding: 0; background: var(--ink); cursor: zoom-in; }
.gal__item img { width: 100%; height: 100%; object-fit: cover; transition: transform .9s var(--ease); }
@media (hover: hover) { .gal__item:hover img { transform: scale(1.06); } }
.gal[data-focus="0"] { grid-template-areas: "a a" "b c"; }
.gal[data-focus="1"] { grid-template-areas: "b b" "a c"; }
.gal[data-focus="2"] { grid-template-areas: "c c" "a b"; }
.gal[data-focus="3"] { grid-template-areas: "d d" "a b"; }
.gal .gal__item:nth-child(1) { grid-area: a; }
.gal .gal__item:nth-child(2) { grid-area: b; }
.gal .gal__item:nth-child(3) { grid-area: c; }
.gal .gal__item:nth-child(4) { grid-area: d; }
.gal[data-focus="0"] .gal__item:nth-child(4),
.gal[data-focus="1"] .gal__item:nth-child(4),
.gal[data-focus="2"] .gal__item:nth-child(4),
.gal[data-focus="3"] .gal__item:nth-child(3) { display: none; }
::view-transition-group(gal-0), ::view-transition-group(gal-1), ::view-transition-group(gal-2), ::view-transition-group(gal-3) { animation-duration: .7s; animation-timing-function: cubic-bezier(.65,0,.35,1); }

/* Xem ảnh lớn */
.lbox { width: min(1200px, calc(100% - 32px)); max-height: calc(100vh - 40px); margin: auto; padding: 0; border: 0; border-radius: 18px; background: #000; overflow: hidden; }
.lbox::backdrop { background: rgba(10,13,36,.82); backdrop-filter: blur(6px); }
.lbox__img { display: block; width: 100%; max-height: calc(100vh - 40px); object-fit: contain; }
.lbox__close, .lbox__nav { position: absolute; z-index: 2; display: grid; place-items: center; width: 48px; height: 48px; border: 0; border-radius: 50%; cursor: pointer; background: rgba(255,255,255,.92); color: var(--black); font-size: 28px; line-height: 1; box-shadow: 0 4px 14px rgba(0,0,0,.25); transition: background .25s, color .25s, scale .3s var(--ease-back); }
.lbox__close { right: 14px; top: 14px; }
.lbox__nav { top: 50%; translate: 0 -50%; }
.lbox__nav--prev { left: 14px; }
.lbox__nav--next { right: 14px; }
.lbox__close:hover, .lbox__nav:hover { background: var(--red); color: #fff; scale: 1.08; }

/* ---------- Chứng nhận đối tác ---------- */
.certs { position: relative; overflow: hidden; padding: 110px 0 120px; background: radial-gradient(900px 500px at 50% 0%, rgba(186,19,26,.07), transparent 70%), var(--beige); }
.hexdeco--certs { left: -70px; bottom: 40px; }
.certs .h2 { margin-top: 24px; color: var(--navy); }
.certgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 54px; }
.certc { position: relative; display: grid; justify-items: center; align-content: start; gap: 4px; padding: 26px 24px 28px; border-radius: 20px; background: #fff; text-align: center; box-shadow: 0 0 0 1px var(--line); transition: transform .4s var(--ease), box-shadow .4s, opacity .7s var(--ease), translate .7s var(--ease); }
.certc__img { display: grid; place-items: center; width: 100%; height: 170px; margin-bottom: 14px; border-radius: 14px; background: #fff; box-shadow: inset 0 0 0 1px #efece5; }
.certc__img img { height: var(--h, 80px); width: auto; }
.certc b { font-size: 19px; font-weight: 700; color: var(--black); }
.certc small { font-size: 14.5px; color: var(--gray); }
.certc__go { display: inline-flex; align-items: center; gap: 6px; margin-top: 12px; font-size: 14px; font-weight: 600; color: var(--red); }
.certc__go svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: translate .3s var(--ease); }
a.certc:hover { transform: translateY(-6px); box-shadow: 0 0 0 1.5px var(--red), 0 24px 46px -22px rgba(186,19,26,.45); }
a.certc:hover .certc__go svg { translate: 3px -3px; }
.certs__cta { margin-top: 44px; }

/* ---------- Responsive ---------- */
@media (max-width: 1200px) {
  .story__cards { right: 0; bottom: -30px; grid-template-columns: repeat(2, 200px); grid-template-rows: repeat(2, 210px); }
  .kpis__grid { grid-template-columns: repeat(3, 1fr); row-gap: 30px; }
  .kpi:nth-child(4) { border-left: 0; padding-left: 0; }
  .vlist { height: 440px; }
  .value h3 { font-size: 21px; }
  .infra { grid-template-columns: 1fr; }
  .capc { aspect-ratio: auto; min-height: 480px; }
}
@media (max-width: 1023px) {
  .subnav { top: 100px; }
}
@media (max-width: 900px) {
  .phero { padding: 120px 0 80px; }
  .phero__grid { grid-template-columns: 1fr; gap: 44px; }
  .phero__chip--a { left: 10px; bottom: -18px; }
  .phero__chip--b { right: 6px; }
  .phero__hex { display: none; }
  .subnav { justify-content: flex-start; }
  .subnav a { padding: 0 14px; font-size: 14px; }
  .story { padding: 80px 0 70px; background: #fff; }
  .story__head { grid-template-columns: 1fr; gap: 20px; }
  .story__media { aspect-ratio: 4 / 3; }
  .story__cards { position: static; margin-top: 14px; grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .scard--a, .scard--b, .scard--c { grid-column: auto; grid-row: auto; min-height: 170px; }
  .scard--a { grid-column: 1 / -1; }
  .mv { padding: 80px 0 60px; }
  .mv__grid { grid-template-columns: 1fr; gap: 30px; }
  .mv__sticky { position: static; }
  .mv__media { aspect-ratio: 4 / 3; }
  .mv__panel { min-height: 0; padding: 30px 0; }
  .mv__list li { grid-template-columns: 1fr; gap: 4px; }
  .values { padding: 70px 0; }
  .values__head, .cap__head { flex-direction: column; align-items: flex-start; gap: 16px; }
  .vlist { flex-direction: column; height: auto; margin-top: 36px; }
  .value { flex: none; }
  .value h3 { white-space: normal; }
  .value p { width: auto; opacity: 1; translate: none; max-height: none; }
  .value__ic { margin-top: 16px; }
  .cap { padding-top: 70px; }
  .kpis { margin-top: 40px; padding: 44px 0; }
  .kpis__grid { grid-template-columns: 1fr 1fr; }
  .kpi, .kpi:nth-child(4) { border-left: 0; padding-left: 0; }
  .capcards { grid-template-columns: 1fr; margin-top: 44px; }
  .capc { min-height: 400px; }
  .capc--light { min-height: 500px; }
  .capc__worker { width: 44%; max-height: 34%; }
  .infra { padding-top: 70px; padding-bottom: 70px; gap: 30px; }
  .infra__head { font-size: 18px; }
  .certs { padding: 70px 0; }
  .certgrid { grid-template-columns: 1fr; margin-top: 36px; }
}

/* Thanh mục lục bám đáy màn hình (.subnav--dock) – cùng kiểu với các trang sản phẩm (gws.css), để không chồng lên menu trên cùng.
   about.js ẩn thanh khi cuộn tới form liên hệ / chân trang. */
.subnav.subnav--dock { position: fixed; inset: auto 0 calc(18px + env(safe-area-inset-bottom, 0px)) 0; top: auto; z-index: 18; height: auto; transition: opacity .35s, translate .45s var(--ease), visibility 0s; }
.subnav.subnav--dock .subnav__inner { margin-top: 0; background: rgba(255,255,255,.92); box-shadow: 0 0 0 1px rgba(33,34,82,.1), 0 18px 44px -14px rgba(33,34,82,.45); }
.subnav.subnav--dock.is-away { opacity: 0; translate: 0 24px; visibility: hidden; transition: opacity .35s, translate .45s var(--ease), visibility 0s .45s; }
@media (max-width: 1100px) { .subnav.subnav--dock { justify-content: flex-end; padding: 0 14px 0 var(--subnav-left, 210px); } }
@media (max-width: 680px) { .subnav.subnav--dock { --subnav-left: 76px; bottom: calc(14px + env(safe-area-inset-bottom, 0px)); } }
@media (prefers-reduced-motion: reduce) { .subnav.subnav--dock { transition: none; } }