/* =========================================================
   Sinaekato — global stylesheet
   Industrial B2B design system
   ========================================================= */

/* Poppins — SIL Open Font License 1.1, latin subset self-hosted */
@font-face {
  font-family: 'Poppins';
  src: url('../fonts/Poppins-400.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Poppins';
  src: url('../fonts/Poppins-500.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Poppins';
  src: url('../fonts/Poppins-600.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Poppins';
  src: url('../fonts/Poppins-700.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --navy-950: #07141f;
  --navy-900: #0b1d2c;
  --navy-800: #0f2a3f;
  --navy-700: #163a53;
  --blue: #16529b;
  --blue-dark: #0e4785;
  --blue-light: #eaf1f9;
  --accent: #f26a21;
  --accent-dark: #d75712;
  --accent-light: #fff1e7;
  --ink: #14202b;
  --steel: #5c6c7a;
  --steel-light: #8b98a3;
  --line: #e1e7ee;
  --paper: #f5f7f9;
  --white: #ffffff;
  --container: 1200px;
  --header-height: 80px;
  --radius: 4px;
  --shadow-sm: 0 2px 10px rgba(7, 20, 31, .06);
  --shadow-md: 0 16px 40px rgba(7, 20, 31, .12);
  --font-display: 'Poppins', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Poppins', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input, textarea, select { font: inherit; color: inherit; }

h1, h2, h3, h4, .display {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -.005em;
  color: var(--navy-900);
}

h1 { font-size: clamp(32px, 4.2vw, 52px); }
h2 { font-size: clamp(26px, 2.9vw, 38px); }
h3 { font-size: clamp(19px, 1.8vw, 24px); }

p { color: var(--steel); }
strong { color: var(--ink); }

.container {
  width: min(100% - 48px, var(--container));
  margin: 0 auto;
}

.section { padding: 92px 0; }
.section--tight { padding: 64px 0; }
.section--paper { background: var(--paper); }
.section--dark { background: var(--navy-900); color: var(--white); }
.section--dark p { color: rgba(255, 255, 255, .72); }
.section--dark h2, .section--dark h3 { color: var(--white); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--accent);
  display: inline-block;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 32px;
  margin-bottom: 48px;
}
.section-head__text { max-width: 700px; }
.section-head p { margin-top: 16px; max-width: 620px; }
.section-head--center {
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.section-head--center p { margin-left: auto; margin-right: auto; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  color: var(--navy-900);
  border-bottom: 1px solid rgba(11, 29, 44, .2);
  padding-bottom: 4px;
  transition: color .2s ease, border-color .2s ease;
  white-space: nowrap;
}
.link-arrow svg { width: 16px; height: 16px; transition: transform .2s ease; }
.link-arrow:hover { color: var(--accent); border-color: var(--accent); }
.link-arrow:hover svg { transform: translateX(4px); }
.section--dark .link-arrow { color: var(--white); border-color: rgba(255, 255, 255, .3); }
.section--dark .link-arrow:hover { color: var(--accent); border-color: var(--accent); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 52px;
  padding: 0 26px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .02em;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
}
.btn svg { width: 18px; height: 18px; }
.btn--primary { background: var(--accent); color: var(--white); }
.btn--primary:hover { background: var(--accent-dark); transform: translateY(-1px); }
.btn--navy { background: var(--navy-900); color: var(--white); }
.btn--navy:hover { background: var(--navy-700); transform: translateY(-1px); }
.btn--ghost { border-color: rgba(255, 255, 255, .35); color: var(--white); }
.btn--ghost:hover { background: rgba(255, 255, 255, .12); border-color: var(--white); }
.btn--outline { border-color: var(--line); color: var(--navy-900); background: var(--white); }
.btn--outline:hover { border-color: var(--navy-900); background: var(--navy-900); color: var(--white); }
.btn--small { height: 42px; padding: 0 18px; font-size: 13px; }

/* ---------- top bar ---------- */
.topbar {
  background: var(--navy-950);
  color: rgba(255, 255, 255, .78);
  font-size: 12px;
  height: 36px;
  display: flex;
  align-items: center;
}
.topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.topbar__list { display: flex; align-items: center; gap: 26px; }
.topbar__item { display: inline-flex; align-items: center; gap: 8px; }
.topbar__item svg { width: 14px; height: 14px; color: var(--accent); }
.topbar__item a:hover { color: var(--white); }
.topbar__note { display: inline-flex; align-items: center; gap: 8px; color: rgba(255, 255, 255, .55); }
.topbar__note::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

/* ---------- header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .97);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .25s ease;
}
.header.is-scrolled { box-shadow: 0 8px 26px rgba(7, 20, 31, .08); }
.header__inner {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo { display: inline-flex; align-items: center; }
.logo__img { height: 44px; width: auto; display: block; }
.footer .logo__img { height: 40px; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  transition: color .2s ease;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .2s ease;
}
.nav__link:hover, .nav__link.is-active { color: var(--navy-900); }
.nav__link:hover::after, .nav__link.is-active::after { transform: scaleX(1); }
.header__actions { display: flex; align-items: center; gap: 14px; }
.header__phone { display: flex; flex-direction: column; line-height: 1.25; text-align: right; }
.header__phone span { font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--steel-light); }
.header__phone a { font-size: 14px; font-weight: 600; color: var(--navy-900); }

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: var(--navy-900);
  border: 0;
  border-radius: var(--radius);
  cursor: pointer;
}
.nav-toggle span {
  position: relative;
  width: 20px;
  height: 2px;
  background: var(--white);
  display: block;
  transition: .2s;
}
.nav-toggle span::before, .nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: var(--white);
  transition: .2s;
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav-toggle.is-open span { background: transparent; }
.nav-toggle.is-open span::before { top: 0; transform: rotate(45deg); }
.nav-toggle.is-open span::after { top: 0; transform: rotate(-45deg); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  background: var(--navy-950);
  color: var(--white);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 78% 30%, rgba(22, 82, 155, .35), transparent 46%),
    linear-gradient(90deg, rgba(7, 20, 31, .98) 0%, rgba(7, 20, 31, .86) 45%, rgba(7, 20, 31, .35) 100%);
  z-index: 1;
}
.hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  align-items: center;
  gap: 56px;
  min-height: 620px;
  padding: 72px 0;
}
.hero__content { max-width: 590px; }
.hero h1 {
  color: var(--white);
  font-size: clamp(34px, 4.2vw, 54px);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: -.01em;
  line-height: 1.06;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero__lead {
  margin-top: 22px;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(255, 255, 255, .74);
  max-width: 520px;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-top: 38px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, .14);
  font-size: 12px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .55);
}
.hero__meta li { display: inline-flex; align-items: center; gap: 8px; }
.hero__meta li::before { content: ""; width: 5px; height: 5px; background: var(--accent); transform: rotate(45deg); }

.hero__media { position: relative; }
.hero__media::before {
  content: "";
  position: absolute;
  inset: 22px -22px -22px 22px;
  border: 1px solid rgba(255, 255, 255, .18);
  z-index: 0;
}
.hero__img {
  position: relative;
  z-index: 1;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% 88%, 88% 100%, 0 100%);
}
.hero__badge {
  position: absolute;
  z-index: 3;
  left: -26px;
  bottom: 34px;
  background: var(--accent);
  color: var(--white);
  padding: 18px 22px;
  min-width: 178px;
  box-shadow: var(--shadow-md);
}
.hero__badge strong {
  display: block;
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  color: var(--white);
}
.hero__badge span { font-size: 11px; letter-spacing: .12em; text-transform: uppercase; opacity: .9; }

/* ---------- trust strip ---------- */
.trustbar { background: var(--white); border-bottom: 1px solid var(--line); }
.trustbar__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.trustbar__item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 26px 28px;
  border-left: 1px solid var(--line);
}
.trustbar__item:first-child { border-left: 0; padding-left: 0; }
.trustbar__icon {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  background: var(--blue-light);
  color: var(--blue);
  flex: none;
}
.trustbar__icon svg { width: 20px; height: 20px; }
.trustbar__item strong { display: block; font-size: 13px; font-weight: 600; color: var(--navy-900); line-height: 1.35; }
.trustbar__item span { font-size: 11px; color: var(--steel-light); letter-spacing: .04em; }

/* ---------- category cards ---------- */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.cat-grid--four { grid-template-columns: repeat(4, 1fr); }
.cat-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease;
}
.cat-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: transparent; }
.cat-card__media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--paper);
}
.cat-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.cat-card:hover .cat-card__media img { transform: scale(1.04); }
.cat-card__num {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  background: var(--navy-900);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .08em;
  padding: 7px 12px;
}
.cat-card__body { padding: 22px 24px 24px; }
.cat-card__body h3 { font-size: 20px; line-height: 1.2; }
.cat-card__body p {
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--steel);
}
.cat-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--steel-light);
}
.cat-card__foot span { letter-spacing: .06em; text-transform: uppercase; }
.cat-card__foot svg { width: 16px; height: 16px; color: var(--accent); transition: transform .2s ease; }
.cat-card:hover .cat-card__foot svg { transform: translateX(4px); }
.cat-card--cta {
  background: var(--navy-900);
  border-color: transparent;
  color: var(--white);
  display: flex;
  align-items: center;
}
.cat-card--cta:hover { background: var(--navy-800); border-color: transparent; }
.cat-card--cta .cat-card__body { padding: 30px 26px; }
.cat-card--cta h3 { color: var(--white); font-size: 19px; }
.cat-card--cta p { color: rgba(255, 255, 255, .65); }
.cat-card--cta .cat-card__foot { border-top-color: rgba(255, 255, 255, .14); color: rgba(255, 255, 255, .6); }
.cat-card--cta .cat-card__num { color: var(--accent); }

/* ---------- split / advantages ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 64px;
}
.split__media { position: relative; }
.split__media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.split__media::after {
  content: "";
  position: absolute;
  left: -18px;
  bottom: -18px;
  width: 45%;
  height: 45%;
  border-left: 4px solid var(--accent);
  border-bottom: 4px solid var(--accent);
  pointer-events: none;
}
.split__tag {
  position: absolute;
  top: 24px;
  right: -18px;
  background: var(--navy-900);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: .14em;
  text-transform: uppercase;
  padding: 12px 18px;
}
.adv-list { display: grid; grid-template-columns: 1fr 1fr; gap: 26px 32px; margin-top: 32px; }
.adv-item { display: flex; gap: 14px; }
.adv-item__num {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
  border: 1px solid rgba(242, 106, 33, .4);
  width: 34px;
  height: 34px;
  flex: none;
  display: grid;
  place-items: center;
  margin-top: 2px;
}
.adv-item h4 { font-family: var(--font-body); font-size: 14px; font-weight: 600; color: var(--navy-900); line-height: 1.4; }
.adv-item p { margin-top: 6px; font-size: 12.5px; line-height: 1.6; color: var(--steel); }

/* ---------- stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat { padding: 26px 24px; background: var(--white); border-top: 3px solid var(--accent); }
.stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 700;
  color: var(--navy-900);
  line-height: 1;
}
.stat span { display: block; margin-top: 10px; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--steel); }
.section--dark .stat { background: rgba(255, 255, 255, .05); border-top-color: var(--accent); }
.section--dark .stat strong { color: var(--white); }
.section--dark .stat span { color: rgba(255, 255, 255, .6); }

/* ---------- product cards ---------- */
.prod-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.prod-grid--three { grid-template-columns: repeat(3, 1fr); }
.prod-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--line);
  transition: box-shadow .25s ease, transform .25s ease;
}
.prod-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.prod-card__media { position: relative; aspect-ratio: 1 / 1; overflow: hidden; background: #eef1f4; }
.prod-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.prod-card:hover .prod-card__media img { transform: scale(1.05); }
.prod-card__cat {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(11, 29, 44, .9);
  color: var(--white);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 6px 9px;
}
.prod-card__body { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.prod-card__body h3 { font-size: 18px; line-height: 1.25; }
.prod-card__body h3 a:hover { color: var(--blue); }
.prod-card__body p { margin-top: 8px; font-size: 12.5px; line-height: 1.55; color: var(--steel); flex: 1; }
.prod-card__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  font-size: 12px;
  font-weight: 600;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.prod-card__link svg { width: 14px; height: 14px; transition: transform .2s ease; }
.prod-card:hover .prod-card__link svg { transform: translateX(4px); }

/* ---------- process steps ---------- */
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: rgba(255, 255, 255, .12); margin-top: 8px; }
.process__item { background: var(--navy-900); padding: 32px 28px; position: relative; }
.process__num {
  font-family: var(--font-display);
  font-size: 44px;
  font-weight: 700;
  line-height: 1;
  color: rgba(255, 255, 255, .1);
}
.process__item h4 { font-family: var(--font-body); font-size: 15px; font-weight: 600; color: var(--white); margin-top: 14px; }
.process__item p { margin-top: 10px; font-size: 12.5px; line-height: 1.65; color: rgba(255, 255, 255, .6); }

/* ---------- news cards ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--line);
  transition: box-shadow .25s ease, transform .25s ease;
}
.news-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.news-card__media { aspect-ratio: 16 / 10; overflow: hidden; background: var(--paper); }
.news-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.news-card:hover .news-card__media img { transform: scale(1.04); }
.news-card__body { padding: 22px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.news-card__date {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}
.news-card__date::before { content: ""; width: 18px; height: 1px; background: var(--accent); }
.news-card h3 { font-size: 18px; line-height: 1.28; margin-top: 12px; }
.news-card h3 a:hover { color: var(--blue); }
.news-card p { margin-top: 10px; font-size: 13px; line-height: 1.65; color: var(--steel); flex: 1; }
.news-card__more { margin-top: 18px; font-size: 12px; font-weight: 600; color: var(--navy-900); text-transform: uppercase; letter-spacing: .06em; display: inline-flex; gap: 8px; align-items: center; }
.news-card__more svg { width: 14px; height: 14px; color: var(--accent); }

/* ---------- CTA band ---------- */
.cta-band {
  position: relative;
  background: var(--blue);
  color: var(--white);
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(10, 40, 70, .96), rgba(22, 82, 155, .9)),
    repeating-linear-gradient(135deg, rgba(255,255,255,.05) 0 2px, transparent 2px 10px);
}
.cta-band__inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: 66px 0;
}
.cta-band h2 { color: var(--white); max-width: 620px; }
.cta-band p { color: rgba(255, 255, 255, .75); margin-top: 12px; max-width: 560px; }
.cta-band__actions { display: flex; flex-wrap: wrap; gap: 14px; flex: none; }
.cta-band__contact { display: flex; flex-direction: column; gap: 6px; margin-top: 22px; font-size: 13px; color: rgba(255, 255, 255, .65); }
.cta-band__contact span { display: inline-flex; align-items: center; gap: 8px; }
.cta-band__contact svg { width: 15px; height: 15px; flex: none; opacity: .8; }
.cta-band__contact a { color: var(--white); font-weight: 600; }
.cta-band__contact a:hover { color: var(--accent); }

/* ---------- page hero / breadcrumb ---------- */
.page-hero {
  position: relative;
  background: var(--navy-900);
  color: var(--white);
  padding: 66px 0 58px;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  right: -5%;
  top: -40%;
  width: 60%;
  height: 180%;
  background: radial-gradient(circle, rgba(22, 82, 155, .4), transparent 60%);
}
.page-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 30%;
  height: 100%;
  background: repeating-linear-gradient(135deg, rgba(255, 255, 255, .04) 0 2px, transparent 2px 14px);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { color: var(--white); font-size: clamp(30px, 3.5vw, 44px); text-transform: uppercase; letter-spacing: -.01em; }
.page-hero p { color: rgba(255, 255, 255, .7); margin-top: 14px; max-width: 640px; }
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .5);
  margin-bottom: 18px;
}
.breadcrumb a { color: rgba(255, 255, 255, .7); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: var(--accent); }
.light .breadcrumb { color: var(--steel-light); }
.light .breadcrumb a { color: var(--steel); }
.light .breadcrumb a:hover { color: var(--accent); }
.page-strip {
  background: var(--navy-900);
  color: var(--white);
  padding: 14px 0;
}
.page-strip .breadcrumb { margin-bottom: 0; }

/* ---------- product index ---------- */
.cat-summary {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.cat-summary__card {
  display: flex;
  gap: 22px;
  padding: 22px;
  background: var(--white);
  border: 1px solid var(--line);
  transition: border-color .2s ease, box-shadow .2s ease;
}
.cat-summary__card:hover { border-color: var(--accent); box-shadow: var(--shadow-sm); }
.cat-summary__img { width: 150px; flex: none; aspect-ratio: 4 / 3; overflow: hidden; }
.cat-summary__img img { width: 100%; height: 100%; object-fit: cover; }
.cat-summary__card h3 { font-size: 19px; }
.cat-summary__card p { margin-top: 7px; font-size: 12.5px; line-height: 1.6; }
.cat-summary__card .link-arrow { margin-top: 14px; font-size: 12px; }

/* ---------- filter chips ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 30px; }
.filter-btn {
  padding: 9px 16px;
  background: var(--white);
  border: 1px solid var(--line);
  font-size: 12px;
  font-weight: 500;
  color: var(--steel);
  cursor: pointer;
  transition: .2s;
}
.filter-btn:hover { border-color: var(--navy-900); color: var(--navy-900); }
.filter-btn.is-active { background: var(--navy-900); border-color: var(--navy-900); color: var(--white); }
.prod-card.is-hidden { display: none; }

.empty-note {
  padding: 18px 22px;
  background: var(--paper);
  border-left: 3px solid var(--accent);
  font-size: 13px;
  color: var(--steel);
}

/* ---------- product detail ---------- */
.pd-top { display: grid; grid-template-columns: 1.02fr .98fr; gap: 54px; align-items: start; }
.pd-gallery__main {
  position: relative;
  aspect-ratio: 1 / 1;
  background: var(--paper);
  border: 1px solid var(--line);
  overflow: hidden;
}
.pd-gallery__main img { width: 100%; height: 100%; object-fit: contain; padding: 14px; }
.pd-gallery__thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 10px; }
.pd-thumb {
  aspect-ratio: 1 / 1;
  border: 2px solid transparent;
  background: var(--paper);
  padding: 0;
  cursor: pointer;
  overflow: hidden;
}
.pd-thumb img { width: 100%; height: 100%; object-fit: cover; }
.pd-thumb.is-active { border-color: var(--accent); }
.pd-info .eyebrow { margin-bottom: 12px; }
.pd-info h1 { font-size: clamp(26px, 2.5vw, 34px); text-transform: none; }
.pd-info__summary {
  margin-top: 14px;
  font-size: 15px;
  color: var(--steel);
  line-height: 1.7;
}
.pd-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 24px;
  padding: 20px;
  background: var(--paper);
  border-left: 3px solid var(--blue);
}
.pd-meta__item span { display: block; font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--steel-light); }
.pd-meta__item strong { display: block; margin-top: 4px; font-size: 13px; font-weight: 600; color: var(--navy-900); }
.pd-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.pd-note { margin-top: 16px; font-size: 11.5px; color: var(--steel-light); }

.pd-tabs { margin-top: 64px; border-top: 1px solid var(--line); }
.pd-tabs__nav { display: flex; flex-wrap: wrap; gap: 0; border-bottom: 1px solid var(--line); }
.pd-tab {
  padding: 16px 22px;
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  font-size: 13px;
  font-weight: 600;
  color: var(--steel);
  cursor: pointer;
  transition: .2s;
}
.pd-tab:hover { color: var(--navy-900); }
.pd-tab.is-active { color: var(--navy-900); border-bottom-color: var(--accent); }
.pd-panel { display: none; padding: 34px 0 8px; }
.pd-panel.is-active { display: block; }
.pd-panel h2 { font-size: 20px; margin-bottom: 18px; }
.pd-panel h3 { font-size: 18px; margin: 26px 0 12px; }
.pd-panel p { font-size: 14.5px; line-height: 1.8; margin-bottom: 14px; color: var(--steel); }
.pd-panel ul { margin: 4px 0 18px 0; }
.pd-panel li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--steel);
}
.pd-panel li::before { content: ""; position: absolute; left: 0; top: 10px; width: 6px; height: 6px; background: var(--accent); transform: rotate(45deg); }

.spec-table-wrap { overflow-x: auto; border: 1px solid var(--line); }
.spec-table { width: 100%; border-collapse: collapse; min-width: 640px; font-size: 13px; }
.spec-table th, .spec-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.spec-table th { background: var(--navy-900); color: var(--white); font-weight: 600; white-space: nowrap; }
.spec-table tr:nth-child(even) td { background: #fafbfc; }
.spec-table td:first-child { font-weight: 600; color: var(--navy-900); white-space: nowrap; }
.spec-table tr:last-child td { border-bottom: 0; }
.spec-table td:last-child, .spec-table th:last-child { border-right: 0; }

.chip-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 8px; }
.chip {
  padding: 7px 12px;
  background: var(--blue-light);
  color: var(--blue-dark);
  font-size: 12px;
  font-weight: 500;
  border-radius: 2px;
}
.advantage-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 32px; }
.advantage-list li { font-size: 14px; }

.related { margin-top: 76px; }

/* ---------- article ---------- */
.article-wrap { max-width: 840px; margin: 0 auto; }
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  color: var(--steel-light);
}
.article-meta__tag { background: var(--accent-light); color: var(--accent-dark); padding: 4px 10px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; font-size: 10px; }
.article-cover { margin: 28px 0; }
.article-cover img { width: 100%; max-height: 460px; object-fit: cover; }
.article-body p { font-size: 15.5px; line-height: 1.9; color: #3c4a57; margin-bottom: 20px; }
.article-body h2 { font-size: 23px; margin: 34px 0 14px; }
.article-body img { margin: 24px 0; }
.article-foot {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}
.article-foot__contact { font-size: 13px; color: var(--steel); }
.article-foot__contact a { color: var(--blue); font-weight: 600; }

/* ---------- about ---------- */
.about-intro { display: grid; grid-template-columns: 1.1fr .9fr; gap: 60px; align-items: center; }
.about-intro__media { position: relative; }
.about-intro__media img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.about-intro__media::before {
  content: "";
  position: absolute;
  top: -16px;
  right: -16px;
  width: 140px;
  height: 140px;
  border-top: 3px solid var(--accent);
  border-right: 3px solid var(--accent);
}
.timeline { position: relative; margin-top: 20px; }
.timeline::before { content: ""; position: absolute; left: 76px; top: 8px; bottom: 8px; width: 1px; background: var(--line); }
.timeline__item { position: relative; display: grid; grid-template-columns: 76px 1fr; gap: 26px; padding: 14px 0; }
.timeline__year {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--navy-900);
  text-align: right;
  line-height: 1.4;
  padding-right: 22px;
}
.timeline__year::after {
  content: "";
  position: absolute;
  left: 71px;
  top: 20px;
  width: 11px;
  height: 11px;
  background: var(--white);
  border: 2px solid var(--accent);
  transform: rotate(45deg);
}
.timeline__text { padding-left: 18px; font-size: 14px; color: var(--steel); line-height: 1.7; }

.quality-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.quality-card {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 30px 28px;
  border-top: 3px solid var(--blue);
}
.quality-card h3 { font-size: 18px; }
.quality-card p { margin-top: 10px; font-size: 13px; line-height: 1.7; }
.quality-card__icon { width: 44px; height: 44px; background: var(--blue-light); color: var(--blue); display: grid; place-items: center; margin-bottom: 18px; }
.quality-card__icon svg { width: 22px; height: 22px; }

/* ---------- contact ---------- */
.contact-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 56px; align-items: start; }
.contact-list { display: grid; gap: 18px; }
.contact-item {
  display: flex;
  gap: 16px;
  padding: 22px;
  background: var(--white);
  border: 1px solid var(--line);
}
.contact-item__icon { width: 42px; height: 42px; background: var(--navy-900); color: var(--white); display: grid; place-items: center; flex: none; }
.contact-item__icon svg { width: 19px; height: 19px; }
.contact-item span { display: block; font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--steel-light); margin-bottom: 4px; }
.contact-item strong, .contact-item a { font-size: 15px; font-weight: 600; color: var(--navy-900); }
.contact-item a:hover { color: var(--accent); }
.contact-item small { display: block; margin-top: 4px; font-size: 11.5px; color: var(--steel); }

.form-card { background: var(--white); border: 1px solid var(--line); padding: 34px; box-shadow: var(--shadow-sm); }
.form-card h2 { font-size: 25px; }
.form-card > p { margin-top: 8px; font-size: 13px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: 11px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--steel); }
.field label .label-optional { font-weight: 400; letter-spacing: 0; text-transform: none; opacity: .75; }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: #fbfcfd;
  font-size: 14px;
  border-radius: 2px;
  transition: border-color .2s ease, background .2s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--blue);
  background: var(--white);
}
.field textarea { min-height: 124px; resize: vertical; }
.form-foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; margin-top: 22px; }
.form-note { font-size: 11.5px; color: var(--steel-light); max-width: 300px; }
.form-status {
  display: none;
  margin-top: 18px;
  padding: 14px 16px;
  background: #edf7ee;
  border-left: 3px solid #2f8f46;
  font-size: 13px;
  color: #22632f;
}
.form-status.is-visible { display: block; }
.form-status.is-error { background: #fdf0ee; border-left-color: #b53a2b; color: #8c2b20; }
.form-status a { color: inherit; font-weight: 600; text-decoration: underline; }
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}
.field input.is-invalid, .field select.is-invalid, .field textarea.is-invalid {
  border-color: #b53a2b;
  background: #fff7f6;
}
.btn:disabled { opacity: .65; cursor: not-allowed; transform: none; }
.contact-map {
  margin-top: 64px;
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  align-items: center;
  justify-content: space-between;
}
.contact-map h3 { font-size: 20px; }
.contact-map p { margin-top: 6px; font-size: 13px; max-width: 560px; }

/* ---------- footer ---------- */
.footer { background: var(--navy-950); color: rgba(255, 255, 255, .6); padding: 66px 0 0; }
.footer__top { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 48px; }
.footer__about { margin-top: 20px; font-size: 13px; line-height: 1.8; color: rgba(255, 255, 255, .55); max-width: 320px; }
.footer h4 {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 18px;
}
.footer__links { display: grid; gap: 9px; }
.footer__links a { font-size: 13px; color: rgba(255, 255, 255, .55); transition: color .2s ease, padding .2s ease; }
.footer__links a:hover { color: var(--accent); padding-left: 4px; }
.footer__contact { display: grid; gap: 14px; }
.footer__contact-item { display: flex; gap: 10px; font-size: 13px; color: rgba(255, 255, 255, .6); }
.footer__contact-item svg { width: 15px; height: 15px; color: var(--accent); flex: none; margin-top: 4px; }
.footer__contact-item a:hover { color: var(--white); }
.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding: 20px 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 11.5px;
  color: rgba(255, 255, 255, .38);
}
.footer__bottom a { color: rgba(255, 255, 255, .5); }
.footer__bottom a:hover { color: var(--accent); }

/* ---------- toast ---------- */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 500;
  background: var(--navy-900);
  color: var(--white);
  padding: 14px 20px;
  font-size: 13px;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: .25s ease;
}
.toast.is-visible { opacity: 1; transform: translateY(0); }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .hero__grid { gap: 36px; min-height: 540px; }
  .hero__badge { left: -10px; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .prod-grid { grid-template-columns: repeat(3, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .footer__top { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer__col--contact { grid-column: 1 / -1; }
  .header__phone { display: none; }
}

@media (max-width: 900px) {
  :root { --header-height: 70px; }
  .section { padding: 64px 0; }
  .topbar__note { display: none; }
  .nav {
    position: fixed;
    top: calc(var(--header-height) + 36px);
    left: 0;
    right: 0;
    background: var(--navy-900);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px 24px 24px;
    transform: translateY(-130%);
    transition: transform .3s ease;
    z-index: 90;
  }
  .nav.is-open { transform: translateY(0); }
  .nav__link { color: var(--white); height: 50px; border-bottom: 1px solid rgba(255, 255, 255, .1); padding: 0 4px; }
  .nav__link::after { display: none; }
  .nav__link:hover, .nav__link.is-active { color: var(--accent); }
  .nav-toggle { display: inline-flex; }
  .header__actions .btn { display: none; }
  .hero__grid { grid-template-columns: 1fr; padding: 54px 0 64px; }
  .hero__media { display: none; }
  .hero__content { max-width: none; }
  .trustbar__grid { grid-template-columns: 1fr 1fr; }
  .trustbar__item { border-left: 0; border-top: 1px solid var(--line); padding: 20px 0; }
  .trustbar__item:nth-child(odd) { padding-right: 20px; }
  .trustbar__item:nth-child(-n+2) { border-top: 0; }
  .split, .about-intro, .contact-layout, .pd-top { grid-template-columns: 1fr; gap: 36px; }
  .split__media { order: 2; }
  .split__tag { right: 0; }
  .adv-list { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .process { grid-template-columns: 1fr 1fr; }
  .cat-summary { grid-template-columns: 1fr; }
  .quality-grid { grid-template-columns: 1fr; }
  .section-head { flex-direction: column; align-items: flex-start; }
  .pd-gallery__thumbs { grid-template-columns: repeat(4, 1fr); }
  .advantage-list { grid-template-columns: 1fr; }
  .cta-band__inner { flex-direction: column; align-items: flex-start; gap: 26px; }
  .footer__top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .timeline::before { left: 60px; }
  .timeline__item { grid-template-columns: 60px 1fr; gap: 18px; }
  .timeline__year { font-size: 19px; }
  .timeline__year::after { left: 55px; }
}

@media (max-width: 680px) {
  .container { width: min(100% - 32px, var(--container)); }
  .topbar { display: none; }
  .nav { top: var(--header-height); }
  .header__inner { height: var(--header-height); }
  .logo__img { height: 34px; }
  .footer .logo__img { height: 34px; }
  .header__actions .btn { display: none; }
  .hero h1 { font-size: clamp(36px, 10vw, 52px); }
  .hero__actions .btn { flex: 1 1 100%; }
  .hero__meta { gap: 8px 18px; font-size: 10.5px; }
  .section { padding: 54px 0; }
  .cat-grid, .prod-grid, .news-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; gap: 12px; }
  .stat { padding: 20px 16px; }
  .stat strong { font-size: 36px; }
  .stat span { font-size: 10.5px; }
  .process { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .form-card { padding: 24px 20px; }
  .cat-summary__card { flex-direction: column; gap: 16px; }
  .cat-summary__img { width: 100%; aspect-ratio: 16 / 9; }
  .pd-gallery__thumbs { grid-template-columns: repeat(4, 1fr); gap: 6px; }
  .pd-meta { grid-template-columns: 1fr 1fr; padding: 16px; }
  .spec-table { min-width: 0; }
  .spec-table th, .spec-table td { padding: 10px 12px; font-size: 12.5px; }
  .spec-table th, .spec-table td:first-child { white-space: normal; }
  .pd-tabs__nav { overflow-x: auto; flex-wrap: nowrap; }
  .pd-tab { white-space: nowrap; padding: 14px 16px; }
  .cta-band__inner { padding: 48px 0; }
  .cta-band__actions { width: 100%; }
  .cta-band__actions .btn { flex: 1 1 100%; }
  .footer__top { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; }
  .article-body p { font-size: 14.5px; line-height: 1.85; }
  .article-body h2 { font-size: 24px; }
  .timeline::before { display: none; }
  .timeline__item { grid-template-columns: 1fr; gap: 4px; }
  .timeline__year { text-align: left; }
  .timeline__year::after { display: none; }
  .timeline__text { padding-left: 0; }
  .contact-map { flex-direction: column; align-items: flex-start; }
}