/* =============================================
   乐恩® 官网样式表
   品牌色系: 深青绿 #0B7A6E / 暖白 #FAFAF8 / 浅绿 #E8F5F3
   字体: Noto Sans SC (界面) / Noto Serif SC (标题)
============================================= */

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-primary: #0B7A6E;
  --color-primary-dark: #085E54;
  --color-primary-light: #E8F5F3;
  --color-accent: #F5A623;
  --color-bg: #FAFAF8;
  --color-bg-alt: #F4F6F4;
  --color-text: #1A1A1A;
  --color-text-muted: #6B7280;
  --color-border: #E5E7EB;
  --font-sans: 'Noto Sans SC', 'PingFang SC', sans-serif;
  --font-serif: 'Noto Serif SC', 'STSong', serif;
  --max-width: 1280px;
  --section-pad: 96px;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.07), 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.05);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.1), 0 4px 12px rgba(0,0,0,0.06);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

a { text-decoration: none; color: inherit; }
img { display: block; width: 100%; height: auto; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ---- Scroll Reveal ---- */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--transition), transform 0.7s var(--transition);
}
[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================
   NAVBAR
============================================= */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: background var(--transition), padding var(--transition), box-shadow var(--transition);
}
.navbar.scrolled {
  background: rgba(250, 250, 248, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 14px 0;
  box-shadow: 0 1px 0 var(--color-border);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar__logo {
  display: flex;
  align-items: center;
  position: relative;
}
.logo-img {
  height: 40px;
  width: auto;
  display: block;
  transition: filter 0.3s ease;
}
/* White logo filter - turns dark logo to white */
.logo-white-filter {
  filter: brightness(0) saturate(100%) invert(1);
}
.logo-img-footer {
  height: 36px;
  width: auto;
  display: block;
  margin-bottom: 12px;
}

.navbar__nav {
  display: flex;
  align-items: center;
  gap: 36px;
}
.navbar__nav a {
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--color-text);
  opacity: 0.75;
  transition: opacity var(--transition), color var(--transition);
  position: relative;
}
.navbar__nav a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0; right: 0;
  height: 1.5px;
  background: var(--color-primary);
  transform: scaleX(0);
  transition: transform var(--transition);
}
.navbar__nav a:hover { opacity: 1; }
.navbar__nav a:hover::after { transform: scaleX(1); }

.navbar.hero-mode .navbar__nav a { color: rgba(255,255,255,0.85); }
.navbar.hero-mode .navbar__nav a:hover { color: #fff; opacity: 1; }
.navbar.hero-mode .navbar__nav a::after { background: #fff; }

.navbar__mobile-toggle { display: none; flex-direction: column; gap: 5px; padding: 4px; }
.navbar__mobile-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--color-text);
  transition: var(--transition);
  border-radius: 2px;
}
.navbar.hero-mode .navbar__mobile-toggle span { background: #fff; }

/* =============================================
   HERO CAROUSEL
============================================= */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
}

.hero__carousel { height: 100%; position: relative; }

/* -- Slide Base -- */
.hero__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.9s ease;
}
.hero__slide.active { opacity: 1; }

/* -- Slide Background Container -- */
.hero__slide-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

/* -- Gradients -- */
.hero__gradient {
  position: absolute;
  inset: 0;
}
.hero__gradient--sunrise {
  background: linear-gradient(135deg, #FEF5E7 0%, #FADBD8 30%, #F5CBA7 60%, #F0E6D3 100%);
}
.hero__gradient--ocean {
  background: linear-gradient(135deg, #E8F5F3 0%, #D6EAF8 30%, #A9CCE3 65%, #D4E6F1 100%);
}
.hero__gradient--teal {
  background: linear-gradient(135deg, #E0F2F1 0%, #B2DFDB 25%, #80CBC4 55%, #4DB6AC 85%, #26A69A 100%);
}
.hero__gradient--golden {
  background: linear-gradient(135deg, #FFF3E0 0%, #FFE0B2 25%, #FFCC02 55%, #FFB74D 80%, #F5F0E0 100%);
}
.hero__gradient--night {
  background: linear-gradient(135deg, #0D1B2A 0%, #1B2838 30%, #0F4C5C 65%, #0B3D4A 100%);
}

/* -- Decorative Shapes -- */
.hero__shapes {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero__shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.12;
}
.hero__shape--circle {
  background: var(--color-primary);
  animation: shapeFloat 8s ease-in-out infinite;
  opacity: 0.08;
}
.hero__shape--blob {
  background: var(--color-primary);
  animation: shapePulse 6s ease-in-out infinite alternate;
  opacity: 0.06;
  border-radius: 60% 40% 65% 35% / 45% 55% 35% 65%;
}
.hero__slide--golden .hero__shape--blob,
.hero__slide--golden .hero__shape--circle,
.hero__slide--golden .hero__shape--ring {
  background: #E67E22;
  border-color: #E67E22;
}
.hero__slide--fresh .hero__shape--blob,
.hero__slide--fresh .hero__shape--circle,
.hero__slide--fresh .hero__shape--ring {
  background: #2980B9;
  border-color: #2980B9;
}
.hero__shape--ring {
  background: transparent;
  border: 2px solid var(--color-primary);
  animation: shapeRotate 20s linear infinite;
  opacity: 0.1;
}
.hero__shape--dot-grid {
  width: 300px; height: 300px;
  border-radius: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.15) 1px, transparent 1px);
  background-size: 20px 20px;
  opacity: 0.4;
  animation: shapeFloat 10s ease-in-out infinite;
}

@keyframes shapeFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  33% { transform: translateY(-15px) scale(1.02); }
  66% { transform: translateY(10px) scale(0.98); }
}
@keyframes shapePulse {
  0% { transform: scale(1) rotate(0deg); border-radius: 60% 40% 65% 35% / 45% 55% 35% 65%; }
  33% { transform: scale(1.05) rotate(3deg); border-radius: 40% 60% 50% 50% / 55% 45% 55% 45%; }
  66% { transform: scale(0.95) rotate(-2deg); border-radius: 55% 45% 40% 60% / 40% 55% 60% 45%; }
  100% { transform: scale(1.03) rotate(1deg); border-radius: 50% 50% 55% 45% / 45% 55% 50% 50%; }
}
@keyframes shapeRotate {
  to { transform: rotate(360deg); }
}

/* -- Overlays -- */
.hero__overlay {
  position: absolute;
  inset: 0;
}
.hero__overlay--warm {
  background: linear-gradient(
    105deg,
    rgba(62, 39, 35, 0.55) 0%,
    rgba(62, 39, 35, 0.2) 55%,
    rgba(62, 39, 35, 0.02) 100%
  );
}
.hero__overlay--fresh {
  background: linear-gradient(
    105deg,
    rgba(20, 50, 70, 0.55) 0%,
    rgba(20, 50, 70, 0.2) 55%,
    rgba(20, 50, 70, 0.02) 100%
  );
}
.hero__overlay--medical {
  background: linear-gradient(
    105deg,
    rgba(5, 40, 35, 0.6) 0%,
    rgba(5, 40, 35, 0.25) 55%,
    rgba(5, 40, 35, 0.05) 100%
  );
}
.hero__overlay--golden {
  background: linear-gradient(
    105deg,
    rgba(50, 40, 20, 0.55) 0%,
    rgba(50, 40, 20, 0.22) 55%,
    rgba(50, 40, 20, 0.03) 100%
  );
}
.hero__overlay--tech {
  background: linear-gradient(
    105deg,
    rgba(5, 20, 30, 0.7) 0%,
    rgba(5, 20, 30, 0.3) 55%,
    rgba(5, 20, 30, 0.08) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 80px;
  max-width: 620px;
}

.hero__eyebrow {
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 16px;
  opacity: 0;
  transform: translateY(12px);
  animation: heroFadeUp 0.7s 0.2s forwards;
}
.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 20px;
  opacity: 0;
  transform: translateY(16px);
  animation: heroFadeUp 0.7s 0.35s forwards;
}
.hero__desc {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.82);
  max-width: 480px;
  line-height: 1.7;
  margin-bottom: 36px;
  opacity: 0;
  transform: translateY(16px);
  animation: heroFadeUp 0.7s 0.5s forwards;
}
.hero__actions {
  display: flex;
  gap: 16px;
  opacity: 0;
  transform: translateY(16px);
  animation: heroFadeUp 0.7s 0.65s forwards;
}

@keyframes heroFadeUp {
  to { opacity: 1; transform: translateY(0); }
}

/* Re-trigger on slide change */
.hero__slide.active .hero__eyebrow,
.hero__slide.active .hero__title,
.hero__slide.active .hero__desc,
.hero__slide.active .hero__actions {
  animation-play-state: running;
}

.hero__indicators {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}
.indicator {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  transition: background var(--transition), width var(--transition);
  border: none;
}
.indicator.active {
  width: 28px;
  border-radius: 4px;
  background: #fff;
}

.hero__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(8px);
  color: #fff;
  font-size: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
  line-height: 1;
}
.hero__arrow:hover { background: rgba(255,255,255,0.28); }
.hero__arrow--prev { left: 28px; }
.hero__arrow--next { right: 28px; }

/* =============================================
   BUTTONS
============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 28px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn--primary {
  background: #fff;
  color: var(--color-primary);
}
.btn--primary:hover { background: #f0f0ee; transform: translateY(-1px); }

.btn--outline {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.55);
}
.btn--outline:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.8); }

.btn--primary-teal {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(11, 122, 110, 0.3);
}
.btn--primary-teal:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(11, 122, 110, 0.4);
}
.btn--full { width: 100%; }

/* =============================================
   STATS
============================================= */
.stats {
  background: var(--color-primary);
  padding: 48px 0;
}
.stats__grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
}
.stat-item {
  flex: 1;
  text-align: center;
  padding: 12px 24px;
}
.stat-number {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 700;
  color: #fff;
  line-height: 1;
}
.stat-unit {
  font-size: 1.2rem;
  font-weight: 500;
  color: rgba(255,255,255,0.8);
}
.stat-label {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.65);
  margin-top: 6px;
  letter-spacing: 0.04em;
}
.stat-divider {
  width: 1px;
  height: 48px;
  background: rgba(255,255,255,0.2);
  flex-shrink: 0;
}

/* =============================================
   SECTION COMMONS
============================================= */
.section { padding: var(--section-pad) 0; }

.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
  display: block;
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
}

/* ---- Slogan Badge ---- */
.slogan-badge {
  margin-bottom: 28px;
}
.slogan-img {
  height: 48px;
  width: auto;
  display: block;
}
.about { background: var(--color-bg); }

.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about__text .section-title { text-align: left; }
.about__text .section-eyebrow { text-align: left; }
.about__body {
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-top: 16px;
  font-size: 1rem;
}

.about__card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.about__card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px 20px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.about__card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.about__card-icon {
  width: 44px; height: 44px;
  margin-bottom: 14px;
}
.about__card-icon svg { width: 100%; height: 100%; }
.about__card h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.about__card p {
  font-size: 0.825rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* =============================================
   PRODUCTS
============================================= */
.products { background: var(--color-bg-alt); }

.products__tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
}
.prod-tab {
  padding: 10px 28px;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 500;
  border: 1.5px solid var(--color-border);
  background: #fff;
  color: var(--color-text-muted);
  transition: all var(--transition);
}
.prod-tab.active, .prod-tab:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.products__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.prod-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition), transform var(--transition);
  position: relative;
}
.prod-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
}
.prod-card__badge {
  position: absolute;
  top: 14px; left: 14px;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 100px;
  z-index: 2;
}
.prod-card__img-wrap {
  background: var(--color-primary-light);
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.prod-card__img-wrap img { width: 100%; height: 100%; object-fit: cover; }
.prod-card__img-placeholder {
  width: 80px; height: 80px;
  opacity: 0.7;
}
.prod-card__img-placeholder svg { width: 100%; height: 100%; }
.prod-card__body { padding: 20px; }
.prod-card__tag {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.06em;
  display: block;
  margin-bottom: 6px;
}
.prod-card__name {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.3;
}
.prod-card__desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

.products__cta {
  text-align: center;
  margin-top: 48px;
}

/* =============================================
   EXPERTISE
============================================= */
.expertise { background: var(--color-bg); }

.expertise__block { margin-bottom: 64px; }

.expertise__subtitle {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 28px;
  position: relative;
  padding-left: 18px;
}
.expertise__subtitle::before {
  content: '';
  position: absolute;
  left: 0; top: 50%; transform: translateY(-55%);
  width: 4px; height: 22px;
  background: var(--color-primary);
  border-radius: 2px;
}

/* Certificate Cards */
.expertise__cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.cert-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition), transform var(--transition);
}
.cert-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.cert-card__img {
  width: 100%;
  height: 200px;
  background-size: cover;
  background-position: center;
  position: relative;
}
.cert-card__badge {
  position: absolute;
  top: 12px; right: 12px;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 100px;
  letter-spacing: 0.04em;
}
.cert-card h4 {
  font-size: 0.95rem;
  font-weight: 700;
  padding: 18px 18px 4px;
}
.cert-card p {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  padding: 0 18px 20px;
  line-height: 1.55;
}

/* Patent Gallery */
.expertise__patent-gallery {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  grid-template-rows: 220px 220px;
  gap: 12px;
}
.patent-img--main {
  grid-row: 1 / 3;
}
.patent-img {
  background-size: cover;
  background-position: center;
  border-radius: var(--radius);
  transition: transform var(--transition);
}
.patent-img:hover { transform: scale(1.025); }

.expertise__patent-desc {
  text-align: center;
  margin-top: 20px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}
}

/* =============================================
   WHY LEAN
============================================= */
.why { background: var(--color-primary); }
.why .section-eyebrow { color: rgba(255,255,255,0.6); }
.why .section-title { color: #fff; }

.why__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.why__item {
  border-top: 2px solid rgba(255,255,255,0.2);
  padding-top: 28px;
}
.why__num {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 700;
  color: rgba(255,255,255,0.15);
  display: block;
  line-height: 1;
  margin-bottom: 12px;
}
.why__item h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}
.why__item p {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.65;
}

/* =============================================
   NEWS
============================================= */
.news { background: var(--color-bg-alt); }

.news__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.news-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition), transform var(--transition);
}
.news-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.news-card__date {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}
.news-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 12px;
}
.news-card__excerpt {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 20px;
}
.news-card__link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  transition: opacity var(--transition);
}
.news-card__link:hover { opacity: 0.7; }

/* =============================================
   CONTACT
============================================= */
.contact { background: var(--color-bg); }

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}
.contact__info .section-title { text-align: left; font-size: 2rem; margin-bottom: 32px; }
.contact__info .section-eyebrow { text-align: left; }

.contact__details { display: flex; flex-direction: column; gap: 18px; }
.contact__row {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.95rem;
}
.contact__icon { width: 22px; height: 22px; flex-shrink: 0; }

.contact__form { display: flex; flex-direction: column; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
}
.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(11, 122, 110, 0.1);
}
.form-group textarea { resize: vertical; min-height: 100px; }

/* =============================================
   FOOTER
============================================= */
.footer {
  background: #111714;
  color: rgba(255,255,255,0.7);
}
.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding: 64px 32px;
  max-width: var(--max-width);
  margin: 0 auto;
}
.footer__brand p {
  font-size: 0.875rem;
  line-height: 1.6;
  margin-top: 12px;
  opacity: 0.6;
}
.footer__copy {
  font-size: 0.8rem;
  margin-top: 20px;
  opacity: 0.4;
}
.footer__links h4 {
  font-size: 0.825rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.footer__links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer__links a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.5);
  transition: color var(--transition);
}
.footer__links a:hover { color: #fff; }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 18px 0;
}
.footer__bottom .container {
  display: flex;
  justify-content: center;
  gap: 32px;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.3);
}
.footer__bottom a { color: rgba(255,255,255,0.3); transition: color var(--transition); }
.footer__bottom a:hover { color: rgba(255,255,255,0.6); }

/* =============================================
   RESPONSIVE
============================================= */
@media (max-width: 1024px) {
  .products__grid { grid-template-columns: repeat(2, 1fr); }
  .expertise__cert-grid { grid-template-columns: repeat(2, 1fr); }
  .expertise__patent-gallery { grid-template-columns: 1fr 1fr; grid-template-rows: 200px 200px 200px; }
  .patent-img--main { grid-row: 1 / 2; grid-column: 1 / 3; }
  .why__grid { grid-template-columns: repeat(2, 1fr); }
  .about__inner { grid-template-columns: 1fr; gap: 48px; }
  .about__card-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --section-pad: 64px; }
  .container { padding: 0 20px; }

  .navbar__nav { display: none; }
  .navbar__mobile-toggle { display: flex; }

  .navbar__nav.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--color-bg);
    align-items: center;
    justify-content: center;
    gap: 32px;
    z-index: 999;
  }
  .navbar__nav.open a {
    font-size: 1.2rem;
    color: var(--color-text);
    opacity: 1;
  }

  .hero__content { max-width: 100%; }
  .hero__arrow { display: none; }
  .stats__grid { flex-wrap: wrap; gap: 0; }
  .stat-item { min-width: 50%; }
  .stat-divider { display: none; }

  .about__inner { grid-template-columns: 1fr; }
  .about__card-grid { grid-template-columns: 1fr 1fr; }

  .products__grid { grid-template-columns: repeat(2, 1fr); }
  .expertise__cert-grid { grid-template-columns: 1fr 1fr; }
  .expertise__patent-gallery { grid-template-columns: 1fr 1fr; grid-template-rows: auto auto auto; }
  .patent-img--main { grid-row: auto; grid-column: 1 / 3; }
  .patent-img { height: 180px; }
  .why__grid { grid-template-columns: 1fr 1fr; }

  .news__grid { grid-template-columns: 1fr; }
  .contact__inner { grid-template-columns: 1fr; gap: 48px; }

  .footer__inner { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 480px) {
  .products__grid { grid-template-columns: 1fr; }
  .expertise__cert-grid { grid-template-columns: 1fr; }
  .expertise__patent-gallery { grid-template-columns: 1fr; grid-template-rows: auto; }
  .patent-img--main { grid-column: auto; }
  .patent-img { height: 160px; }
  .why__grid { grid-template-columns: 1fr; }
  .about__card-grid { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; }
  .hero__actions { flex-direction: column; }
  .stats__grid { flex-direction: column; }
  .stat-item { min-width: 100%; }
}

/* =============================================
   PREFERS REDUCED MOTION
============================================= */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}