/* =========================================================
   MJ Prototypes — replica of the 2fprototypes.com layout
   Tokens follow the original: #e60413 accent, #181715 dark
   panels, #333 ink, Roboto + Microsoft YaHei stack.
   ========================================================= */

:root {
  --accent: #e60413;
  --accent-hover: rgba(230, 4, 19, .8);
  --accent-dark: #8d0a12;
  --ink: #333;
  --ink-strong: #181715;
  --grey: #666;
  --grey-soft: #888;
  --line: #e6e7ea;
  --bg: #f6f7f9;
  --bg-tint: #fafbfe;
  --white: #fff;
  --radius: 4px;
  --shadow-sm: 0 2px 10px rgba(24, 23, 21, .07);
  --shadow-md: 0 10px 28px rgba(24, 23, 21, .12);
  --shadow-lg: 0 18px 46px rgba(24, 23, 21, .18);
  --header-h: 76px;
  --topbar-h: 40px;
  --maxw: 1200px;
  --font: "Roboto", "Helvetica Neue", Helvetica, Arial, "Microsoft YaHei", "PingFang SC", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--white);
}

img { max-width: 100%; height: auto; display: block; border: 0; }

a { color: var(--accent); text-decoration: none; transition: color .25s; }
a:hover { color: var(--accent-hover); }

h1, h2, h3, h4, h5 { margin: 0 0 .6em; font-weight: 700; line-height: 1.3; color: var(--ink); }
h1 { font-size: 2.6rem; }
h2 { font-size: 2.3rem; }
h3 { font-size: 1.35rem; }
p { margin: 0 0 1rem; }

ul { padding-left: 1.2rem; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.section { width: 100%; padding: 76px 0; }
.section--tint { background: var(--bg); }
.section--dark { background: var(--ink-strong); color: #eee; }
.section--dark h2, .section--dark h3 { color: #fff; }

/* ---------- section heading ---------- */
.sec-head { margin-bottom: 40px; }
.sec-head h2 { position: relative; padding-bottom: 16px; }
.sec-head h2::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 62px; height: 4px; background: var(--accent);
}
.sec-head--center { text-align: center; }
.sec-head--center h2::after { left: 50%; transform: translateX(-50%); }
.sec-head p { color: var(--grey); max-width: 760px; margin: 14px 0 0; }
.sec-head--center p { margin: 14px auto 0; }
.eyebrow {
  display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 10px;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 30px; border-radius: var(--radius); border: 1px solid transparent;
  font-size: .98rem; font-weight: 700; cursor: pointer; text-align: center;
  transition: all .25s; font-family: inherit;
}
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: var(--accent-hover); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn--ghost { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .55); }
.btn--ghost:hover { background: #fff; color: var(--ink); border-color: #fff; }
.btn--outline { background: transparent; color: var(--ink); border-color: #cfd2d8; }
.btn--outline:hover { border-color: var(--accent); color: var(--accent); }
.btn--sm { padding: 9px 18px; font-size: .86rem; }

/* ---------- top bar ---------- */
.topbar {
  background: #1e1e1e; color: #fff; font-size: .85rem; height: var(--topbar-h);
  display: flex; align-items: center;
}
.topbar .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.topbar .welcome { margin: 0; }
.topbar__right { display: flex; align-items: center; gap: 26px; }
.topbar .contact-list { display: flex; gap: 26px; margin: 0; }
.topbar .contact-list dd { margin: 0; }
.topbar a { color: #fff; display: inline-flex; align-items: center; gap: 7px; }
.topbar a:hover span { color: var(--accent); }
.topbar .social { display: flex; gap: 8px; }
.topbar .social a {
  width: 26px; height: 26px; border-radius: 50%; background: #3a3a3a;
  display: grid; place-items: center;
}
.topbar .social a:hover { background: var(--accent); }
.topbar svg { width: 15px; height: 15px; fill: #fff; flex: none; }

/* ---------- header / nav ---------- */
.header {
  position: fixed; inset: var(--topbar-h) 0 auto 0; z-index: 200;
  background: rgba(255, 255, 255, .97); border-bottom: 1px solid var(--line);
  transition: box-shadow .3s, top .3s;
}
.header.is-stuck { box-shadow: var(--shadow-sm); top: 0; }
.nav { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); gap: 20px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { width: 42px; height: 42px; }
.brand .word { font-size: 1.32rem; font-weight: 700; color: var(--ink); line-height: 1.1; letter-spacing: -.01em; }
.brand .word b { color: var(--accent); }
.brand .sub { display: block; font-size: .66rem; letter-spacing: .16em; color: var(--grey-soft); text-transform: uppercase; font-weight: 400; }

.menu { display: flex; align-items: center; list-style: none; margin: 0; padding: 0; gap: 6px; }
.menu > li { position: relative; }
.menu > li > a {
  display: block; padding: 26px 12px; color: var(--ink); font-size: 1rem; font-weight: 500;
  position: relative;
}
.menu > li > a::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: 18px; height: 2px;
  background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .3s;
}
.menu > li > a:hover { color: var(--accent); }
.menu > li > a:hover::after, .menu > li.is-active > a::after { transform: scaleX(1); }
.menu > li.is-active > a { color: var(--accent); }
.menu .caret { width: 9px; height: 9px; fill: currentColor; margin-left: 5px; display: inline-block; vertical-align: 1px; }

.dropdown {
  position: absolute; top: 100%; left: -6px; min-width: 232px; background: #fff;
  border: 1px solid var(--line); box-shadow: var(--shadow-md); padding: 8px 0; list-style: none; margin: 0;
  opacity: 0; visibility: hidden; transform: translateY(10px); transition: all .22s; z-index: 210;
}
.menu > li:hover .dropdown, .menu > li.is-open .dropdown { opacity: 1; visibility: visible; transform: none; }
.dropdown a { display: block; padding: 9px 20px; color: var(--ink); font-size: .92rem; }
.dropdown a:hover { background: var(--accent); color: #fff; }
.menu .quote > a { padding: 10px 22px; background: var(--accent); color: #fff; border-radius: var(--radius); }
.menu .quote > a::after { display: none; }
.menu .quote > a:hover { background: var(--accent-hover); color: #fff; }

.burger { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.burger span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; transition: .3s; }

/* mobile drawer */
.mobile-menu {
  display: none; position: fixed; inset: calc(var(--topbar-h) + var(--header-h)) 0 0 0; z-index: 190;
  background: #fff; overflow-y: auto; padding: 10px 20px 90px;
}
body.nav-open .mobile-menu { display: block; }
.mobile-menu ul { list-style: none; margin: 0; padding: 0; }
.mobile-menu > ul > li { border-bottom: 1px solid var(--line); }
.mobile-menu a { display: block; padding: 14px 4px; color: var(--ink); font-weight: 500; }
.mobile-menu .sub { padding-left: 14px; background: var(--bg-tint); }
.mobile-menu .sub a { font-size: .9rem; color: var(--grey); padding: 10px 4px; }

/* ---------- hero carousel ---------- */
.hero { position: relative; margin-top: calc(var(--topbar-h) + var(--header-h)); background: var(--ink-strong); }
.hero__track { position: relative; }
.hero__slide { display: none; position: relative; min-height: 520px; align-items: center; }
.hero__slide.is-active { display: flex; }
.hero__slide img.bg {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .72;
}
.hero__inner { position: relative; z-index: 3; width: 100%; }
.hero__box {
  position: relative; background: rgba(24, 23, 21, .82); padding: 40px 48px;
  max-width: 640px; color: #fff;
}
.hero__box h1 { color: #fff; font-size: 2.6rem; line-height: 1.25; margin-bottom: 14px; }
.hero__box p { color: #eee; font-size: 1.02rem; }
.hero__box ul { list-style: none; padding: 0; margin: 0 0 26px; }
.hero__box li { margin-bottom: 8px; padding-left: 24px; position: relative; color: #eee; font-size: .96rem; }
.hero__box li::before {
  content: ""; position: absolute; left: 0; top: 9px; width: 12px; height: 6px;
  border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg);
}
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__dots { position: absolute; right: 28px; bottom: 22px; display: flex; gap: 8px; z-index: 5; }
.hero__dots button {
  width: 34px; height: 4px; border: 0; padding: 0; background: rgba(255, 255, 255, .35); cursor: pointer;
}
.hero__dots button.is-active { background: var(--accent); }

/* ---------- stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.stat {
  background: #fff; border: 1px solid var(--line); border-top: 3px solid transparent; padding: 28px 24px;
  transition: all .3s; text-align: center;
}
.stat:hover { border-top-color: var(--accent); box-shadow: var(--shadow-md); transform: translateY(-4px); }
.stat .icon { width: 46px; height: 46px; margin: 0 auto 14px; }
.stat .icon svg { width: 46px; height: 46px; fill: var(--accent); }
.stat .num { font-size: 2.4rem; font-weight: 700; color: var(--ink); line-height: 1; }
.stat .num small { font-size: 1.2rem; }
.stat h4 { margin: 8px 0 6px; font-size: 1.02rem; }
.stat p { color: var(--grey); font-size: .9rem; margin: 0; }

/* ---------- card grids ---------- */
.grid { display: grid; gap: 24px; }
.grid > * { min-width: 0; }
.with-side > * { min-width: 0; }
.split > * { min-width: 0; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--1 { grid-template-columns: 1fr; }

.card {
  background: #fff; border: 1px solid var(--line); overflow: hidden; display: flex; flex-direction: column;
  transition: box-shadow .3s, transform .3s;
}
.card:hover { box-shadow: var(--shadow-lg); transform: translateY(-6px); }
.card__img { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: #ddd; }
.card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.card:hover .card__img img { transform: scale(1.07); }
.card__body { padding: 22px 24px 26px; flex: 1; display: flex; flex-direction: column; }
.card__body h3 { font-size: 1.18rem; margin-bottom: 10px; }
.card__body h3 a { color: var(--ink); }
.card__body h3 a:hover { color: var(--accent); }
.card__body p { color: var(--grey); font-size: .92rem; margin: 0 0 16px; flex: 1; }
.card__more {
  font-size: .86rem; font-weight: 700; color: var(--accent); letter-spacing: .04em;
  display: inline-flex; align-items: center; gap: 6px; align-self: flex-start;
}
.card__more::after { content: "→"; transition: transform .25s; }
.card__more:hover::after { transform: translateX(4px); }
.card ul.checks { list-style: none; padding: 0; margin: 0 0 14px; }
.card ul.checks li { position: relative; padding-left: 20px; font-size: .88rem; color: var(--grey); margin-bottom: 4px; }
.card ul.checks li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

/* ---------- scroller row (solutions / gallery) ---------- */
.scroller { position: relative; }
.scroller__track { display: grid; grid-auto-flow: column; grid-auto-columns: calc((100% - 48px) / 3); gap: 24px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; }
.scroller__track::-webkit-scrollbar { display: none; }
.scroller__track > * { scroll-snap-align: start; }
.scroller__nav { display: flex; gap: 10px; justify-content: flex-end; margin-bottom: -66px; position: relative; z-index: 4; }
.scroller__nav button {
  width: 42px; height: 42px; border: 1px solid var(--line); background: #fff; cursor: pointer;
  font-size: 1.1rem; color: var(--ink); transition: .25s;
}
.scroller__nav button:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ---------- gallery tiles ---------- */
.tiles { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.tile { position: relative; overflow: hidden; aspect-ratio: 1 / 1; background: #e5e5e5; }
.tile img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.tile:hover img { transform: scale(1.1); }
.tile figcaption {
  position: absolute; inset: auto 0 0 0; padding: 10px 12px; font-size: .8rem; color: #fff;
  background: linear-gradient(transparent, rgba(24, 23, 21, .85)); transform: translateY(100%); transition: transform .3s;
}
.tile:hover figcaption { transform: none; }

/* ---------- industry strip (dark) ---------- */
.section--dark .card { background: #211f1d; border-color: #35322f; }
.section--dark .card__body h3 a { color: #fff; }
.section--dark .card__body p { color: #b9b6b2; }
.section--dark .btn--outline { color: #fff; border-color: #55524f; }
.section--dark .btn--outline:hover { color: var(--accent); border-color: var(--accent); }

/* ---------- split feature (why choose us) ---------- */
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 54px; align-items: center; }
.split__media { position: relative; }
.split__media img { width: 100%; box-shadow: var(--shadow-lg); }
.split__badge {
  position: absolute; left: -26px; bottom: -26px; background: var(--accent); color: #fff;
  padding: 20px 26px; box-shadow: var(--shadow-md); min-width: 170px;
}
.split__badge b { display: block; font-size: 2.1rem; line-height: 1; }
.split__badge span { font-size: .82rem; opacity: .92; }
.feature { display: flex; gap: 16px; margin-bottom: 24px; }
.feature__icon {
  flex: none; width: 42px; height: 42px; border-radius: 50%; background: rgba(230, 4, 19, .09);
  display: grid; place-items: center; color: var(--accent); font-weight: 700;
}
.feature h3 { font-size: 1.1rem; margin-bottom: 6px; }
.feature p { color: var(--grey); font-size: .93rem; margin: 0; }

/* ---------- quality list ---------- */
.quality .card__body ul { list-style: none; padding: 0; margin: 0; }
.quality .card__body li { position: relative; padding-left: 22px; font-size: .9rem; color: var(--grey); margin-bottom: 6px; }
.quality .card__body li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

/* ---------- process steps ---------- */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; }
.steps--3 { grid-template-columns: repeat(3, 1fr); }
.step { position: relative; padding: 30px 18px 24px; background: #fff; border: 1px solid var(--line); transition: .3s; }
.step:hover { border-color: var(--accent); box-shadow: var(--shadow-md); }
.step::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  position: absolute; top: 12px; right: 14px; font-size: 1.7rem; font-weight: 700; color: #ececee;
}
.step h3 { font-size: 1rem; margin-bottom: 6px; }
.step p { font-size: .85rem; color: var(--grey); margin: 0; }
.step__icon { width: 34px; height: 34px; margin-bottom: 14px; }
.step__icon svg { width: 34px; height: 34px; fill: var(--accent); }

/* ---------- testimonials ---------- */
.quotes { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.quote { background: #fff; border: 1px solid var(--line); padding: 26px; position: relative; }
.quote::before {
  content: "”"; position: absolute; top: -6px; right: 18px; font-size: 5rem; line-height: 1;
  color: rgba(230, 4, 19, .12); font-family: Georgia, serif;
}
.quote .stars { color: #f5a623; letter-spacing: 2px; font-size: .9rem; margin-bottom: 12px; }
.quote p { font-size: .92rem; color: var(--grey); }
.quote .who { margin: 0; padding-top: 12px; border-top: 1px dashed var(--line); font-size: .86rem; color: var(--ink); font-weight: 700; }
.quote .who small { display: block; font-weight: 400; color: var(--grey-soft); }

/* ---------- partners marquee ---------- */
.marquee { overflow: hidden; position: relative; }
.marquee__row { display: flex; gap: 18px; width: max-content; animation: slide 28s linear infinite; }
.marquee:hover .marquee__row { animation-play-state: paused; }
@keyframes slide { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.pill {
  flex: none; min-width: 190px; height: 74px; border: 1px solid var(--line); background: #fff;
  display: grid; place-items: center; padding: 0 22px; font-weight: 700; color: #9aa0a6; letter-spacing: .06em;
  text-transform: uppercase; font-size: .86rem; transition: .3s;
}
.pill:hover { color: var(--ink); border-color: var(--accent); }

/* ---------- CTA band ---------- */
.cta { background: linear-gradient(120deg, var(--accent-dark), var(--accent)); color: #fff; padding: 62px 0; }
.cta .container { display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.cta h2 { color: #fff; margin: 0 0 6px; }
.cta p { margin: 0; opacity: .93; }
.cta .btn { background: #fff; color: var(--accent); }
.cta .btn:hover { background: var(--ink-strong); color: #fff; }

/* ---------- footer ---------- */
.footer { background: #171614; color: #a9a6a2; padding: 62px 0 0; font-size: .92rem; }
.footer a { color: #a9a6a2; }
.footer a:hover { color: var(--accent); }
.footer__grid { display: grid; grid-template-columns: 1.3fr 1.4fr 1fr 1fr 1fr; gap: 40px; }
.footer .brand .word, .footer .brand .word b { color: #fff; }
.footer h4 { color: #fff; font-size: 1rem; margin-bottom: 16px; letter-spacing: .02em; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 9px; }
.footer .addr { font-style: normal; line-height: 1.8; }
.footer .hotline b { display: block; color: #fff; font-size: 1.28rem; letter-spacing: .01em; }
.footer__bar {
  margin-top: 46px; border-top: 1px solid #2b2a28; padding: 20px 0; display: flex;
  justify-content: space-between; gap: 14px; flex-wrap: wrap; font-size: .84rem; color: #7d7b78;
}

/* ---------- page banner (inner pages) ---------- */
.page-head {
  margin-top: calc(var(--topbar-h) + var(--header-h)); position: relative; background: var(--ink-strong);
  min-height: 300px; display: flex; align-items: flex-end;
}
.page-head img.bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .6; }
.page-head .container { position: relative; z-index: 2; padding-top: 60px; padding-bottom: 34px; }
.page-head h1 { color: #fff; font-size: 2.35rem; margin-bottom: 8px; }
.page-head p { color: #ddd; max-width: 720px; margin: 0; }
.crumbs { font-size: .84rem; color: #bbb; margin-bottom: 14px; }
.crumbs a { color: #ddd; }
.crumbs span { margin: 0 8px; color: var(--accent); }

/* ---------- inner page layout ---------- */
.with-side { display: grid; grid-template-columns: 260px 1fr; gap: 44px; align-items: start; }
.side-nav { border: 1px solid var(--line); background: #fff; }
.side-nav h4 { background: var(--accent); color: #fff; margin: 0; padding: 16px 20px; font-size: 1rem; }
.side-nav ul { list-style: none; margin: 0; padding: 0; }
.side-nav li { border-bottom: 1px solid var(--line); }
.side-nav a { display: block; padding: 13px 20px; color: var(--ink); font-size: .92rem; }
.side-nav a:hover { background: var(--bg-tint); color: var(--accent); }
.side-nav .on a { color: var(--accent); font-weight: 700; background: var(--bg-tint); }
.side-cta { margin-top: 22px; background: var(--ink-strong); color: #ccc; padding: 24px 20px; }
.side-cta h3 { color: #fff; font-size: 1.05rem; }
.side-cta p { font-size: .88rem; }

.prose h2 { font-size: 1.7rem; margin-top: 42px; }
.prose h3 { font-size: 1.2rem; margin-top: 28px; }
.prose h2::after { content: ""; display: block; width: 54px; height: 3px; background: var(--accent); margin-top: 12px; }
.prose p, .prose li { color: #4a4d52; }
.prose .lead { font-size: 1.06rem; color: var(--ink); }
.figure { margin: 26px 0; }
.figure img { width: 100%; box-shadow: var(--shadow-sm); }
.figure figcaption { font-size: .82rem; color: var(--grey-soft); padding-top: 8px; }

/* spec tables */
.spec { width: 100%; border-collapse: collapse; margin: 22px 0; font-size: .92rem; background: #fff; }
.spec caption { text-align: left; font-weight: 700; padding-bottom: 10px; color: var(--ink); }
.spec th, .spec td { border: 1px solid var(--line); padding: 12px 16px; text-align: left; vertical-align: top; }
.spec thead th { background: var(--bg); color: var(--ink); font-weight: 700; }
.spec tbody th { width: 210px; background: var(--bg-tint); font-weight: 700; color: var(--ink); }

/* pills / tags */.tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 8px 0 22px; padding: 0; list-style: none; }
.tags li { border: 1px solid var(--line); background: #fff; padding: 7px 14px; font-size: .85rem; color: var(--grey); }
.tags li:hover { border-color: var(--accent); color: var(--accent); }

/* ticked list */
.ticks { list-style: none; padding: 0; margin: 0 0 22px; }
.ticks li { position: relative; padding-left: 26px; margin-bottom: 9px; color: #4a4d52; }
.ticks li::before {
  content: ""; position: absolute; left: 0; top: 9px; width: 12px; height: 6px;
  border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg);
}

/* material cards */
.mat { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.mat div { border: 1px solid var(--line); background: #fff; padding: 18px; }
.mat h4 { font-size: .98rem; margin-bottom: 8px; }
.mat p { font-size: .84rem; color: var(--grey); margin: 0; }

/* FAQ */
.faq { border: 1px solid var(--line); background: #fff; margin-bottom: 12px; }
.faq > button {
  width: 100%; text-align: left; background: none; border: 0; padding: 18px 52px 18px 20px; font-size: 1rem;
  font-weight: 700; color: var(--ink); cursor: pointer; position: relative; font-family: inherit;
}
.faq > button::after { content: "+"; position: absolute; right: 20px; top: 14px; font-size: 1.4rem; color: var(--accent); }
.faq.is-open > button::after { content: "−"; }
.faq .ans { display: none; padding: 0 20px 18px; color: var(--grey); font-size: .93rem; border-top: 1px dashed var(--line); }
.faq.is-open .ans { display: block; }

/* tabs */
.tabs__btns { display: flex; gap: 8px; border-bottom: 2px solid var(--line); margin-bottom: 26px; flex-wrap: wrap; }
.tabs__btns button {
  background: none; border: 0; padding: 12px 20px; font-size: .98rem; font-weight: 700; color: var(--grey);
  cursor: pointer; font-family: inherit; border-bottom: 3px solid transparent; margin-bottom: -2px;
}
.tabs__btns button.on { color: var(--accent); border-bottom-color: var(--accent); }
.tabs__panel { display: none; }
.tabs__panel.on { display: block; }

/* form */
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.form-grid > * { min-width: 0; }
.field { display: flex; flex-direction: column; }
.field--wide { grid-column: 1 / -1; }
.field label { font-size: .86rem; font-weight: 700; margin-bottom: 7px; }
.field label i { color: var(--accent); font-style: normal; }
.field input, .field select, .field textarea {
  font: inherit; color: var(--ink); padding: 12px 14px; border: 1px solid #cfd2d8; border-radius: var(--radius);
  background: #fff; width: 100%; min-width: 0; max-width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(230, 4, 19, .12); }
.drop {
  border: 2px dashed #d5d8dd; background: var(--bg-tint); padding: 28px; text-align: center; color: var(--grey);
  font-size: .92rem; cursor: pointer;
}
.drop b { color: var(--accent); }
.form-note { font-size: .82rem; color: var(--grey-soft); }
.form-card { background: #fff; border: 1px solid var(--line); padding: 34px; box-shadow: var(--shadow-sm); }
.contact-info dl { display: grid; grid-template-columns: 52px 1fr; gap: 14px 16px; margin: 0 0 26px; }
.contact-info dt svg { width: 24px; height: 24px; fill: var(--accent); }
.contact-info dd { margin: 0; font-size: .94rem; color: var(--grey); }
.contact-info dd b { display: block; color: var(--ink); }
.map { aspect-ratio: 16 / 9; background: #e9ebef url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="40" height="40"><path d="M0 39h40M39 0v40" stroke="%23d3d7dd"/></svg>'); display: grid; place-items: center; border: 1px solid var(--line); color: var(--grey); font-size: .9rem; }

/* video grid */
.videos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.video { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--ink-strong); cursor: pointer; }
.video img { width: 100%; height: 100%; object-fit: cover; opacity: .8; transition: .5s; }
.video:hover img { opacity: 1; transform: scale(1.05); }
.video .play {
  position: absolute; inset: 0; margin: auto; width: 58px; height: 58px; border-radius: 50%;
  background: rgba(230, 4, 19, .92); display: grid; place-items: center; color: #fff; font-size: 1.2rem;
}
.video figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 12px 14px; color: #fff; font-size: .88rem; background: linear-gradient(transparent, rgba(0, 0, 0, .8)); }

/* certificates */
.certs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.cert { border: 1px solid var(--line); background: #fff; padding: 22px; text-align: center; }
.cert .seal {
  width: 68px; height: 68px; margin: 0 auto 14px; border-radius: 50%; border: 3px solid var(--accent);
  display: grid; place-items: center; color: var(--accent); font-weight: 700; font-size: 1.1rem;
}
.cert h4 { font-size: 1rem; margin-bottom: 6px; }
.cert p { font-size: .84rem; color: var(--grey); margin: 0; }

/* blog list */
.posts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

/* reveal animation */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .marquee__row { animation: none; }
  html { scroll-behavior: auto; }
}

/* back-to-top + floating quote (mobile) */
.to-top {
  position: fixed; right: 18px; bottom: 96px; width: 44px; height: 44px; border: 0; border-radius: var(--radius);
  background: var(--ink-strong); color: #fff; cursor: pointer; opacity: 0; pointer-events: none; transition: .3s; z-index: 150;
}
.to-top.on { opacity: .9; pointer-events: auto; }
.to-top:hover { background: var(--accent); opacity: 1; }
.float-quote {
  display: none; position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 160;
  background: var(--accent); color: #fff; padding: 14px; text-align: center; font-weight: 700; border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

/* ---------- cookie banner ---------- */
.cookies {
  position: fixed; inset: auto 0 0 0; background: rgba(23, 22, 20, .97); color: #ddd; padding: 18px 0; z-index: 300;
  transform: translateY(110%); transition: transform .4s; font-size: .88rem;
}
.cookies.on { transform: none; }
.cookies .container { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; justify-content: center; text-align: center; }
.cookies .btn { flex: none; }

/* ---------- responsive ---------- */
@media (max-width: 1199px) {
  .hero__box { margin-left: 20px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .tiles { grid-template-columns: repeat(4, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .quotes { grid-template-columns: repeat(2, 1fr); }
  .mat, .certs { grid-template-columns: repeat(2, 1fr); }
  .scroller__track { grid-auto-columns: calc((100% - 24px) / 2); }
}
@media (max-width: 991px) {
  .menu, .topbar .contact-list, .topbar .welcome { display: none; }
  .topbar__right { margin-left: auto; }
  .burger { display: block; }
  .mobile-menu { display: none; }
  body.nav-open .mobile-menu { display: block; }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 40px; }
  .with-side { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: repeat(2, 1fr); }
  .videos, .posts { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 767px) {
  body { font-size: 15px; }
  .section { padding: 52px 0; }
  h1 { font-size: 1.9rem; } h2 { font-size: 1.7rem; }
  .header { top: var(--topbar-h); }
  .hero__slide { min-height: 420px; }
  .hero__box { padding: 24px; }
  .hero__box h1 { font-size: 1.6rem; line-height: 1.3; }
  .stats, .grid--3, .grid--2, .tiles, .steps, .quotes, .form-grid, .mat, .certs, .videos, .posts {
    grid-template-columns: 1fr;
  }
  .tiles { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .scroller__track { grid-auto-columns: 100%; }
  .scroller__nav { display: none; }
  .float-quote { display: block; }
  .to-top { bottom: 78px; }
  .footer__grid { grid-template-columns: 1fr; }
  .split__badge { left: 12px; bottom: -18px; padding: 14px 18px; }
  .page-head h1 { font-size: 1.7rem; }
  .cta .container { flex-direction: column; align-items: flex-start; }
  .spec tbody th { width: 128px; }
}