@import url("/assets/css/banner.css?v=20260731-4");

/* Hallmark · pre-emit critique: P5 H5 E5 S5 R5 V4 */
/* Hallmark · macrostructure: Catalogue · tone: technical · anchor hue: amber · scope: multilingual type calibration */
/* Hallmark · component: banner typography · genre: modern-minimal · theme: existing industrial amber
 * states: static · responsive · breadcrumb hover · breadcrumb focus
 * contrast: pass (40–41) · mobile: pass (34, 49, 51)
 */
/* Inlined from /tokens.css to remove its render-blocking follow-up request. */
:root {
  --color-paper: oklch(97% 0.008 78);
  --color-paper-2: oklch(94% 0.012 78);
  --color-paper-3: oklch(90% 0.014 78);
  --color-ink: oklch(17% 0.012 78);
  --color-ink-2: oklch(31% 0.012 78);
  --color-muted: oklch(43% 0.010 78);
  --color-rule: oklch(80% 0.014 78);
  --color-rule-2: oklch(87% 0.012 78);
  --color-dark: oklch(14% 0.012 72);
  --color-dark-2: oklch(19% 0.014 72);
  --color-dark-3: oklch(25% 0.014 72);
  --color-on-dark: oklch(95% 0.008 78);
  --color-on-dark-muted: oklch(75% 0.010 78);
  --color-accent: oklch(72% 0.16 75);
  --color-accent-strong: oklch(52% 0.15 69);
  --color-accent-ink: oklch(17% 0.012 78);
  --color-focus: oklch(50% 0.19 69);
  --color-error: oklch(48% 0.18 28);
  --color-error-soft: oklch(95% 0.025 28);
  --color-success: oklch(42% 0.12 150);
  --color-success-soft: oklch(95% 0.025 150);
  --color-overlay-strong: oklch(12% 0.012 72 / 0.82);
  --color-overlay-soft: oklch(12% 0.012 72 / 0.30);

  --font-display: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "Noto Sans SC", "Microsoft YaHei", sans-serif;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-md: 1.25rem;
  --text-lg: 1.5625rem;
  --text-xl: 1.953rem;
  --text-2xl: 2.441rem;
  --text-3xl: 3.052rem;
  --text-display: clamp(2.25rem, 5vw, 4.5rem);

  --space-3xs: 0.125rem;
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 9rem;

  --rule-hair: 1px;
  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-pill: 999rem;
  --shadow-whisper: 0 1px 2px oklch(20% 0.012 72 / 0.08);

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.7, 0, 0.84, 0);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-micro: 120ms;
  --dur-short: 220ms;
  --dur-long: 420ms;

  --z-base: 1;
  --z-raised: 10;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal: 400;
}
@font-face {
  font-family: "Inter";
  src: url("/assets/fonts/inter/Inter-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Inter";
  src: url("/assets/fonts/inter/Inter-Medium.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Inter";
  src: url("/assets/fonts/inter/Inter-SemiBold.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Inter";
  src: url("/assets/fonts/inter/Inter-Bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Noto Sans SC";
  src: url("/assets/fonts/noto-sans-sc/NotoSansSC-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Noto Sans SC";
  src: url("/assets/fonts/noto-sans-sc/NotoSansSC-Medium.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Noto Sans SC";
  src: url("/assets/fonts/noto-sans-sc/NotoSansSC-SemiBold.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Noto Sans SC";
  src: url("/assets/fonts/noto-sans-sc/NotoSansSC-Bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
/* ========== Reset & Base ========== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: clip;
  /* Note */
  --site-header-height: 64px;
  --site-container-max: 1680px;
  --site-header-max: 1920px;
  --site-container-padding: 1rem;
  /* Note */
  --text-dark: #1a1a1a;
  --text-body: #444444;
  --text-light: #666666;
  --font-latin: "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-cjk: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
}
html[lang="en"],
html[lang="en-US"],
html[lang="en-GB"],
html[lang="ru"] {
  font-family: var(--font-latin);
}
html[lang="zh"],
html[lang="zh-CN"] {
  font-family: var(--font-cjk);
}
@media (min-width: 640px) {
  html {
    --site-container-padding: 1.5rem;
  }
}
@media (min-width: 1024px) {
  html {
    --site-header-height: 70px;
    --site-container-padding: clamp(2rem, 4vw, 80px);
  }
}
body {
  font-family: inherit;
  font-weight: 400;
  color: #1a1a1a;
  background: #ffffff;
  line-height: 1.65;
  letter-spacing: 0;
  overflow-x: clip;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
.hero-slide-picture {
  display: block;
  width: 100%;
  height: 100%;
}
ul, ol {
  list-style: none;
}
button,
input,
select,
textarea {
  font-family: inherit;
}
button {
  border: none;
  background: none;
  cursor: pointer;
}
p,
li,
td,
th,
input,
textarea,
select {
  line-height: 1.65;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: inherit;
  font-style: normal;
  color: inherit;
  margin-top: 0;
}
h1 {
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.025em;
}
h2 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}
h3 {
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
}
h4,
h5,
h6 {
  font-weight: 600;
  line-height: 1.35;
}
button,
input[type="submit"],
.btn {
  font-weight: 600;
  letter-spacing: 0.01em;
}
.font-oswald {
  font-family: inherit;
}
/* ========== Container ========== */
.container {
  width: 100%;
  max-width: var(--site-container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--site-container-padding);
  padding-right: var(--site-container-padding);
}

/* Keep the navigation comfortably wider than page content without letting it
   span the full ultrawide viewport. */
.site-header > .container {
  max-width: var(--site-header-max);
}
@media (min-width: 640px) {
  .container {
    padding-left: var(--site-container-padding);
    padding-right: var(--site-container-padding);
  }
}
@media (min-width: 1024px) {
  .container {
    padding-left: var(--site-container-padding);
    padding-right: var(--site-container-padding);
    max-width: var(--site-container-max);
  }
}
/* ========== Scrollbar Hide ========== */
.scrollbar-hide::-webkit-scrollbar {
  display: none;
}
.scrollbar-hide {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* ========== Header / Navbar ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 20, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
@media (min-width: 1024px) {
  .header-inner { height: 70px; }
}
.logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  line-height: 1;
}
.logo-image {
  height: 38px;
  width: auto;
}
.logo-extra {
  height: 38px;
  width: auto;
  margin-right: 10px;
}
.logo-text-wrap {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.logo-text {
  color: #f0a500;
  font-weight: 700;
  font-size: 1.375rem;
  letter-spacing: 0.05em;
  font-family: inherit;
}
@media (min-width: 1024px) {
  .logo-text { font-size: 1.25rem; }
}
.logo-accent { color: #f0a500; }
.logo-tagline {
  color: #888;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  margin-top: 4px;
}
@media (min-width: 1024px) {
  .logo-tagline { font-size: 0.8rem; }
}
.desktop-nav {
  display: none;
  align-items: center;
  gap: 0;
}
@media (min-width: 1280px) {
  .desktop-nav { display: flex; }
}
.nav-link {
  position: relative;
  padding: 8px 14px;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: #d1d5db;
  transition: color 0.2s;
  white-space: nowrap;
}
@media (min-width: 1280px) {
  .nav-link {
    padding: 8px 16px;
    font-size: 0.9375rem;
  }
}
@media (min-width: 1280px) and (max-width: 1439px) {
  .nav-link {
    padding: 8px;
    font-size: 0.875rem;
  }
}
@media (min-width: 1536px) {
  .nav-link {
    padding: 8px 18px;
    font-size: 1rem;
  }
}
.nav-link:hover {
  color: #fff;
}
.nav-link--active {
  color: #fff;
  font-weight: 600;
}
.nav-link--active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 2px;
  background: #f0a500;
  border-radius: 2px;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.header-btn {
  color: #d1d5db;
  padding: 6px;
  border-radius: 6px;
  transition: color 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.header-btn:hover { color: #fff; }
.lang-switch {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 112px;
  min-height: 40px;
  color: #d1d5db;
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1;
  cursor: pointer;
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.12);
  transition: all 0.2s;
  position: relative;
}
.lang-switch:hover {
  color: #fff;
  border-color: rgba(255,255,255,0.25);
}
.lang-flag {
  width: 22px;
  height: 15px;
  border-radius: 2px;
  object-fit: cover;
}
.lang-code {
  font-weight: 500;
  white-space: nowrap;
}
.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: #1a1a2e;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px;
  padding: 6px;
  min-width: 140px;
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px) scale(0.98);
  transform-origin: top right;
  transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s ease;
  z-index: 100;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}
.lang-dropdown.active {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}
.lang-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 6px;
  color: #d1d5db;
  font-size: 0.8125rem;
  transition: all 0.15s;
}
.lang-option:hover {
  background: rgba(255,255,255,0.08);
  color: #fff;
}
.lang-option--active {
  background: rgba(240,165,0,0.15);
  color: #f0a500;
}
.mobile-lang-switch {
  display: flex;
  gap: 4px;
  padding: 12px 16px;
}
.mobile-lang-option {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 6px;
  color: #9ca3af;
  font-size: 0.8125rem;
  background: rgba(255,255,255,0.05);
  transition: all 0.15s;
}
.mobile-lang-option:hover,
.mobile-lang-option--active {
  background: rgba(240,165,0,0.15);
  color: #f0a500;
}
.mobile-toggle {
  color: #d1d5db;
  display: flex;
  align-items: center;
  justify-content: center;
}
@media (min-width: 1280px) {
  .mobile-toggle { display: none; }
}

/* ===== Mobile: prioritize the MOSINTER GROUP brand lockup ===== */
@media (max-width: 1023px) {
  .site-header .logo-image {
    height: 32px;
    flex: 0 0 auto;
  }
  .site-header .logo-extra {
    height: 22px;
    margin-right: 0;
    flex: 0 0 auto;
  }
  .site-header .logo-text-wrap {
    align-items: stretch;
    flex: 0 0 auto;
  }
  .site-header .logo-text {
    font-size: 1rem;
    letter-spacing: 0.04em;
    white-space: nowrap;
  }
  .site-header .logo-tagline {
    display: block;
    width: 100%;
    margin-top: 3px;
    font-size: 0.625rem;
    letter-spacing: 0.075em;
    text-align: justify;
    text-align-last: justify;
    white-space: nowrap;
  }
  .site-header .logo-wrap {
    gap: 6px;
    flex-shrink: 1;
    min-width: 0;
    overflow: hidden;
  }
  .header-actions {
    flex-shrink: 0;
  }
}

@media (max-width: 360px) {
  .site-header .logo-extra {
    display: none;
  }
}

/* Search Bar */
.search-bar {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  padding: 0;
  border-top: 1px solid transparent;
  transform: translateY(-8px);
  transition: max-height 0.32s ease, opacity 0.24s ease, padding 0.32s ease, transform 0.32s ease, border-color 0.32s ease;
}
.search-bar.active {
  max-height: 84px;
  opacity: 1;
  padding: 12px 0;
  border-top-color: rgba(255,255,255,0.05);
  transform: translateY(0);
}
.search-input-wrap {
  position: relative;
}
.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: #6b7280;
}
.search-input {
  width: 100%;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  padding: 10px 16px 10px 40px;
  font-size: 0.875rem;
  color: #fff;
  outline: none;
}
.search-input::placeholder { color: #6b7280; }
.search-input:focus { border-color: rgba(240,165,0,0.5); }
/* Mobile Menu */
.mobile-menu {
  display: block;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  background: #0a0a14;
  border-top: 1px solid rgba(255,255,255,0.05);
  transform: translateY(-10px);
  transition: max-height 0.36s ease, opacity 0.26s ease, transform 0.36s ease;
}
.mobile-menu.active {
  max-height: 85vh;
  opacity: 1;
  transform: translateY(0);
}
@media (min-width: 1280px) {
  .mobile-menu { display: none !important; }
}
.mobile-menu nav {
  padding: 16px 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.mobile-nav-link {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.875rem;
  color: #d1d5db;
  transition: all 0.2s;
}
.mobile-nav-link:hover {
  color: #fff;
  background: rgba(255,255,255,0.05);
}
.mobile-nav-link--active {
  color: #f0a500;
  font-weight: 500;
}

/* ========== Desktop Nav Dropdown ========== */
.nav-item {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-link--has-arrow {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-arrow {
  color: #9ca3af;
  transition: transform 0.25s ease, color 0.2s;
  flex-shrink: 0;
}

.nav-item:hover > .nav-link,
.nav-item:hover .nav-arrow {
  color: #fff;
}
.nav-item:hover > .nav-link .nav-arrow,
.nav-item.open > .nav-link .nav-arrow {
  transform: rotate(180deg);
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  background: rgba(15, 15, 28, 0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  padding: 6px;
  min-width: 148px;
  white-space: nowrap;
  z-index: 200;
  box-shadow: 0 16px 40px rgba(0,0,0,0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.nav-item.open > .nav-dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

/* Note */
.nav-dropdown::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-bottom: 6px solid rgba(255,255,255,0.1);
}
.nav-dropdown::after {
  content: '';
  position: absolute;
  top: -5px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-bottom: 5px solid rgba(15,15,28,0.97);
}

.nav-dropdown-item {
  display: block;
  padding: 9px 14px;
  border-radius: 7px;
  font-size: 0.9rem;
  color: #c9cdd6;
  transition: background 0.15s, color 0.15s;
}

.nav-dropdown-item:hover {
  background: rgba(240,165,0,0.12);
  color: #f0a500;
}

.nav-dropdown-item.active {
  background: rgba(240,165,0,0.15);
  color: #f0a500;
  font-weight: 500;
}

/* ========== Mobile Nav Sub-menu ========== */
.mobile-nav-item {
  border-radius: 8px;
  overflow: hidden;
}

.mobile-nav-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mobile-nav-toggle .mobile-nav-link {
  flex: 1;
}

.mobile-nav-arrow {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #9ca3af;
  border-radius: 6px;
  transition: color 0.2s, background 0.2s;
  margin-right: 4px;
}

.mobile-nav-arrow:hover {
  color: #fff;
  background: rgba(255,255,255,0.06);
}

.mobile-nav-arrow svg {
  transition: transform 0.25s ease;
}

.mobile-nav-item.open .mobile-nav-arrow svg {
  transform: rotate(180deg);
}

.mobile-nav-item.open .mobile-nav-arrow {
  color: #f0a500;
}

.mobile-nav-sub {
  display: flex;
  flex-direction: column;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  background: rgba(255,255,255,0.03);
  border-left: 2px solid rgba(240,165,0,0.35);
  margin: 0 16px 6px 16px;
  border-radius: 0 0 6px 6px;
  padding: 0;
  transform: translateY(-6px);
  transition: max-height 0.3s ease, opacity 0.24s ease, padding 0.3s ease, transform 0.3s ease;
}

.mobile-nav-item.open .mobile-nav-sub {
  max-height: 320px;
  opacity: 1;
  padding: 4px 0;
  transform: translateY(0);
}

.mobile-nav-sub-link {
  padding: 9px 16px;
  font-size: 0.8125rem;
  color: #9ca3af;
  transition: color 0.15s, background 0.15s;
  border-radius: 4px;
}

.mobile-nav-sub-link:hover {
  color: #f0a500;
  background: rgba(240,165,0,0.08);
}
.mobile-nav-sub-link.mobile-nav-link--active {
  color: #f0a500;
  font-weight: 500;
  background: rgba(240,165,0,0.1);
}

/* ========== Mobile: Hide search & lang-switch ========== */
@media (max-width: 1279px) {
  #searchToggle,
  .lang-switch {
    display: none !important;
  }
}

/* ========== Utility ========== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border-width: 0;
}

/* ========== Footer ========== */
.site-footer {
  background: #080810;
  color: #9ca3af;
}
.footer-main {
  padding: 56px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
@media (min-width: 1024px) {
  .footer-main { padding: 72px 0; }
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 36px;
}
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1.8fr 1fr 1fr 1fr 1.4fr;
    gap: 32px;
    align-items: start;
  }
}
.footer-brand {
  grid-column: span 2;
  display: flex;
  flex-direction: column;
  gap: 0;
}
@media (min-width: 768px) {
  .footer-brand { grid-column: span 3; }
}
@media (min-width: 1024px) {
  .footer-brand { grid-column: span 1; }
}
.footer-logo-link {
  display: inline-block;
  margin-bottom: 20px;
}
.footer-logo-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}
.footer-logo {
  height: 48px;
  width: auto;
  flex-shrink: 0;
}
.footer-brand-info {
  display: flex;
  flex-direction: column;
}
.footer-brand-name {
  color: #f0a500;
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: 0.05em;
  font-family: inherit;
}

/* Product codes and technical values keep their columns optically aligned. */
.product-specifications,
.product-meta,
.technical-data,
.cas-number,
.molecular-formula,
table {
  font-variant-numeric: tabular-nums;
}
table th {
  font-weight: 600;
}
table td {
  font-weight: 400;
}
.product-detail-page .product-parameters .specs-table th {
  font-weight: 600;
}
.product-detail-page .product-parameters .specs-table td {
  font-weight: 400;
}
@media (max-width: 767px) {
  .product-detail-page .product-parameters .specs-table th,
  .product-detail-page .product-parameters .specs-table td {
    font-size: 0.8125rem;
    line-height: 1.5;
  }
}
.footer-brand-tagline {
  color: #888;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  margin-top: 4px;
}
.footer-brand-desc {
  font-size: 0.88rem;
  line-height: 1.65;
  color: #9ca3af;
  margin: 24px 0 24px;
  max-width: 280px;
}
.social-icons {
  display: flex;
  gap: 10px;
}
.social-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #888;
  font-size: 0.6875rem;
  transition: all 0.2s;
}
.social-icon:hover {
  background: rgba(240,165,0,0.1);
  border-color: rgba(240,165,0,0.3);
  color: #f0a500;
}
.footer-col h4,
.footer-col .footer-title {
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 22px;
  letter-spacing: 0.02em;
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.footer-col a {
  font-size: 0.875rem;
  color: #9ca3af;
  transition: color 0.2s;
}
.footer-col a:hover { color: #f0a500; }
.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.footer-contact li svg {
  width: 15px;
  height: 15px;
  color: #9ca3af;
  margin-top: 2px;
  flex-shrink: 0;
}
.footer-contact li span {
  font-size: 0.875rem;
  color: #9ca3af;
  line-height: 1.6;
}
.footer-contact li a {
  font-size: 0.875rem;
  color: #9ca3af;
  line-height: 1.6;
  transition: color 0.2s;
}
.footer-contact li a:hover {
  color: #f0a500;
}
.footer-bottom {
  padding: 20px 0;
}
.footer-bottom-inner {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  text-align: center;
}
@media (min-width: 640px) {
  .footer-bottom-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}
.footer-bottom p {
  font-size: 0.8125rem;
  color: #6b7280;
}
.footer-legal {
  display: flex;
  align-items: center;
  gap: 16px;
}
.footer-legal a {
  font-size: 0.8125rem;
  color: #6b7280;
  transition: color 0.2s;
}
.footer-legal a:hover { color: #9ca3af; }
.footer-legal .sep { color: #374151; }

/* ========== Motion Enhancements ========== */
@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes softPulseGold {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(240,165,0,0.22);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(240,165,0,0);
  }
}

.site-header {
  transition: background 0.28s ease, border-color 0.28s ease, box-shadow 0.28s ease;
  animation: fadeSlideUp 0.55s ease both;
}

.logo-wrap,
.header-btn,
.lang-switch,
.mobile-toggle,
.nav-link {
  transition: transform 0.22s ease, color 0.22s ease, background 0.22s ease, border-color 0.22s ease;
}

.logo-wrap:hover,
.header-btn:hover,
.lang-switch:hover,
.mobile-toggle:hover {
  transform: translateY(-2px);
}

.nav-link::before {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: -2px;
  height: 2px;
  border-radius: 2px;
  background: #f0a500;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.24s ease;
}

.nav-link:hover::before {
  transform: scaleX(1);
}

.nav-link--active::before {
  display: none;
}

.nav-dropdown-item,
.lang-option,
.mobile-nav-link,
.mobile-nav-sub-link,
.footer-col a,
.footer-contact li a,
.footer-legal a {
  transition: color 0.2s ease, background 0.2s ease, transform 0.22s ease;
}

.nav-dropdown-item:hover,
.lang-option:hover,
.mobile-nav-link:hover,
.mobile-nav-sub-link:hover,
.footer-col a:hover,
.footer-contact li a:hover,
.footer-legal a:hover {
  transform: translateX(4px);
}

.social-icon:hover {
  transform: translateY(-3px) rotate(4deg);
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.65s ease, transform 0.65s ease;
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .animate-on-scroll {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ========== Shared Banner Typography ========== */
body .banner.banner {
  min-height: 0;
}

body .banner > .container.banner-content {
  width: 100%;
  max-width: var(--site-container-max);
  min-width: 0;
  min-height: 0;
  margin-inline: auto;
  padding-inline: var(--site-container-padding);
  padding-block: var(--space-md) var(--space-lg);
  display: block;
}

body .banner > .container.banner-content > h1 {
  position: relative;
  min-width: 0;
  max-width: min(100%, 28ch);
  margin: 0;
  color: var(--color-on-dark);
  font-size: clamp(1.75rem, 2vw + 1rem, 2.75rem);
  font-weight: 700;
  font-style: normal;
  line-height: 1.08;
  letter-spacing: -0.025em;
  overflow-wrap: anywhere;
  text-wrap: balance;
}

body .banner > .container.banner-content > h1::before {
  content: "";
  display: block;
  width: var(--space-xl);
  height: 2px;
  margin-block-end: var(--space-sm);
  background: var(--color-accent);
}

body .banner > .container.banner-content > p {
  display: none;
  width: 100%;
  max-width: min(100%, 72ch);
  margin: 0;
  color: var(--color-on-dark);
  font-size: var(--text-base);
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0;
  text-shadow:
    0 1px 2px var(--color-dark),
    0 0 8px var(--color-dark);
  text-wrap: pretty;
}

body .banner > .container.banner-content > .banner-desc {
  display: none;
}

body .banner > .container.banner-content > .breadcrumb {
  display: none;
  width: 100%;
  margin: 0;
  padding-block-start: var(--space-sm);
  border-block-start: var(--rule-hair) solid var(--color-dark-3);
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-xs);
  color: var(--color-on-dark-muted);
  font-size: var(--text-sm);
  line-height: 1.5;
}

body .banner > .container.banner-content > .breadcrumb a {
  color: var(--color-on-dark-muted);
  white-space: nowrap;
}

body .banner > .container.banner-content > .breadcrumb a:hover {
  color: var(--color-accent);
}

body .banner > .container.banner-content > .breadcrumb a:focus-visible {
  color: var(--color-on-dark);
  outline: 2px solid var(--color-focus);
  outline-offset: var(--space-2xs);
}

body .banner > .container.banner-content > .breadcrumb .sep {
  color: var(--color-accent);
}

html[lang="en"] body .banner > .container.banner-content > h1,
html[lang="ru"] body .banner > .container.banner-content > h1 {
  max-width: min(100%, 32ch);
}

@media (max-width: 63.9375rem) {
  body .banner > .container.banner-content {
    min-height: 0;
    padding-block: var(--space-md) var(--space-lg);
  }

  body .banner > .container.banner-content > h1 {
    font-size: clamp(1.75rem, 6.8vw, 2rem);
  }

  body .banner > .container.banner-content > h1::before {
    margin-block-end: var(--space-xs);
  }

  html[lang="en"] body .banner > .container.banner-content > h1,
  html[lang="ru"] body .banner > .container.banner-content > h1 {
    font-size: var(--text-lg);
  }

  html[lang="ru"] body .banner > .container.banner-content > h1 {
    letter-spacing: -0.015em;
  }
}

@media (max-width: 30rem) {
  html[lang="ru"] body .banner > .container.banner-content > h1 {
    font-size: var(--text-md);
  }
}

@media (min-width: 64rem) {
  body .banner > .container.banner-content {
    padding-block: var(--space-lg) var(--space-xl);
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    row-gap: var(--space-sm);
    align-items: start;
  }

  body .banner > .container.banner-content > h1 {
    grid-column: 1;
    align-self: start;
  }

  body .banner > .container.banner-content > p {
    grid-column: 1;
    align-self: start;
    display: block;
  }

  body .banner > .container.banner-content > .breadcrumb {
    grid-column: 1;
    display: flex;
  }

  html[lang="en"] body .banner > .container.banner-content > h1 {
    font-size: var(--text-2xl);
  }

  html[lang="ru"] body .banner > .container.banner-content > h1 {
    font-size: var(--text-xl);
    letter-spacing: -0.015em;
  }
}

/* Note */
.page-banner {
  position: relative;
  background: #2d2d3d;
  overflow: hidden;
  margin-top: var(--site-header-height);
}

.page-banner-bg {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #3a3a4a;
}

.page-banner-bg .placeholder-icon {
  opacity: 0.15;
}

.page-banner-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-size: auto;
  background-position: center center;
  background-repeat: no-repeat;
}

.page-banner-overlay::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(to right, rgb(0, 0, 0), rgba(18, 18, 20, 0.9), rgba(26, 26, 46, 0));
}

.page-banner-content {
  position: relative;
  z-index: 2;
  width: min(100% - 64px, var(--site-container-max));
  max-width: var(--site-container-max);
  margin-left: auto;
  margin-right: auto;
  padding: 64px 0 60px;
}

/* Note */
@media (min-width: 1025px) {
  .page-banner-content {
    padding-left: clamp(4rem, 6vw, 8rem);
    padding-right: 2rem;
  }

  .page-banner-content h1 {
    letter-spacing: -0.01em;
  }
}

@media (min-width: 1280px) {
  .page-banner-content {
    padding-left: clamp(5rem, 7vw, 10rem);
  }
}

@media (min-width: 1536px) {
  .page-banner-content {
    padding-left: clamp(6rem, 8vw, 12rem);
  }
}

.page-banner-content h1 {
  font-size: 38px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  line-height: 1.2;
  min-width: 0;
  overflow-wrap: anywhere;
}

.page-banner-content p {
  font-size: 17px;
  color: #c0c0c8;
  margin-bottom: 28px;
  font-weight: 400;
}

@media (max-width: 768px) {
  .page-banner-content h1 {
    font-size: 28px;
  }

  .page-banner-content p {
    font-size: 15px;
  }
}

@media (max-width: 480px) {
  .page-banner-content {
    width: calc(100% - 32px);
    padding: 40px 0;
  }

  .page-banner-content h1 {
    font-size: 24px;
  }
}

/* Note */
.site-header + .container.breadcrumb,
.site-header + .container.page-title-section {
  margin-top: var(--site-header-height);
}

.site-header + .container.breadcrumb {
  gap: 6px;
  padding-top: 16px;
  padding-bottom: 8px;
  color: #888;
}

.site-header + .container.breadcrumb a:hover {
  color: #f0a500;
}

.site-header + .container.breadcrumb span {
  color: #333;
}

.container.breadcrumb + .container.page-title-section {
  margin-top: 0;
}

/* Note */
.page-title-section {
  padding-bottom: 24px;
}

.page-title {
  font-size: 36px;
  font-weight: 700;
  color: #111;
  margin-bottom: 8px;
  line-height: 1.2;
  min-width: 0;
  overflow-wrap: anywhere;
}

.page-desc {
  color: #666;
  font-size: 15px;
}

@media (max-width: 768px) {
  .page-title {
    font-size: 30px;
  }
}

/* ========== Breadcrumb ========== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: #999;
}

.breadcrumb a {
  color: #999;
  transition: color 0.2s;
}

.breadcrumb a:hover {
  color: #fff;
}

.breadcrumb .sep {
  display: flex;
  align-items: center;
}

.breadcrumb .sep svg {
  width: 14px;
  height: 14px;
  color: #666;
}

.breadcrumb .current,
.breadcrumb .separator {
  color: #ddd;
}

/* International brand partnership: keep the localized navigation label intact. */
.footer-col a[href="/products/brands/index.html"] {
  white-space: nowrap;
  font-size: 0.8125rem;
}

@media (max-width: 1023px) {
  .footer-grid > .footer-col:has(a[href="/products/brands/index.html"]) {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1024px) {
  .footer-grid:has(a[href="/products/brands/index.html"]) {
    grid-template-columns: 1.7fr 1.2fr 1fr 0.9fr 1.35fr;
  }
}

/* ============================================================
   MOSINTER GROUP NETWORK
   Industrial dark treatment with MOSLUBE gold/green accents.
   ============================================================ */
.group-network {
  width: 100%;
  color: var(--color-on-dark);
  background: linear-gradient(180deg, var(--color-dark-2), var(--color-dark));
  border-block: 1px solid rgba(240, 165, 0, 0.2);
  font-family: var(--font-body);
}

.group-network__inner {
  padding-top: 28px;
  padding-bottom: 30px;
}

.group-network__title {
  margin: 0 0 16px;
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.group-network__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  width: 100%;
  margin: 0;
  padding: 0;
  list-style: none;
}

.group-network__grid > li {
  min-width: 0;
  margin: 0;
}

.group-network__item {
  display: flex;
  min-width: 0;
  min-height: 78px;
  padding: 13px 14px;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  color: var(--color-on-dark-muted);
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition:
    color var(--dur-short) var(--ease-out),
    background-color var(--dur-short) var(--ease-out),
    border-color var(--dur-short) var(--ease-out),
    transform var(--dur-short) var(--ease-out);
}

a.group-network__item:hover {
  color: var(--color-on-dark);
  background: var(--color-dark-3);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

a.group-network__item:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.group-network__item.is-current {
  color: var(--color-on-dark);
  background: rgba(240, 165, 0, 0.14);
  border-color: var(--color-accent);
  box-shadow: inset 3px 0 0 var(--color-success);
}

.group-network__name {
  min-width: 0;
  font-size: 0.85rem;
  font-weight: 700;
  line-height: 1.3;
  overflow-wrap: anywhere;
}

.group-network__domain {
  min-width: 0;
  color: inherit;
  font-size: 0.72rem;
  line-height: 1.35;
  opacity: 0.72;
  overflow-wrap: anywhere;
}

@media (max-width: 1024px) {
  .group-network__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .group-network__inner {
    padding-top: 24px;
    padding-bottom: 26px;
  }

  .group-network__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 360px) {
  .group-network__grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .group-network__item {
    transition: none;
  }
}