:root {
  --color-primary: #880830;
  --color-primary-dark: #4f061e;
  --color-bg: #fbfaf8;
  --color-accent: #f36f21;
  --color-accent-hover: #d95d17;
  --color-surface: #f2eee9;
  --color-line: #e5ded6;
  --color-text: #2f2d2c;
  --color-text-light: #6f6864;
  --color-white: #ffffff;
  --font-heading: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --max-width: 1200px;
  --nav-height: 76px;
  --radius: 8px;
  --shadow-sm: 0 2px 12px rgba(73, 35, 20, 0.07);
  --shadow-md: 0 14px 32px rgba(73, 35, 20, 0.12);
  --transition: 0.25s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

h1, h2, h3 {
  font-family: var(--font-heading);
  color: var(--color-primary-dark);
  line-height: 1.16;
  letter-spacing: 0;
}
h1 { font-size: clamp(2.4rem, 5vw, 4.5rem); font-weight: 800; }
h2 { font-size: clamp(2rem, 3.4vw, 2.9rem); font-weight: 800; }
h3 { font-size: clamp(1.15rem, 2vw, 1.45rem); font-weight: 700; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 82px 0; }
main { padding-top: var(--nav-height); }
.section-label {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-lead {
  max-width: 720px;
  color: var(--color-text-light);
  font-size: 1.05rem;
  margin-top: 14px;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
  backdrop-filter: blur(12px);
  transition: box-shadow var(--transition);
}
.navbar.scrolled { box-shadow: var(--shadow-sm); }
.navbar .container {
  max-width: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 20px;
  padding-inline: clamp(24px, 3.8vw, 78px);
}
.navbar-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  color: var(--color-primary);
  font-size: 1rem;
  font-weight: 900;
  letter-spacing: 0;
}
.navbar-logo img { width: 40px; height: 40px; object-fit: contain; }
.navbar-logo span { color: var(--color-primary); white-space: nowrap; }
.navbar-links { display: flex; gap: 22px; align-items: center; }
.navbar-links a {
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--color-text);
  position: relative;
  padding: 7px 0;
  white-space: nowrap;
}
.navbar-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}
.navbar-links a:hover::after, .navbar-links a.active::after { width: 100%; }
.navbar-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 4px; }
.navbar-toggle span { display: block; width: 24px; height: 2px; background: var(--color-primary); transition: var(--transition); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 13px 28px;
  border-radius: var(--radius);
  font-size: 0.94rem;
  font-weight: 800;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
}
.btn-primary { background: var(--color-accent); color: var(--color-white); }
.btn-primary:hover { background: var(--color-accent-hover); transform: translateY(-1px); box-shadow: 0 8px 20px rgba(243, 111, 33, 0.25); }
.btn-outline { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: var(--color-white); }
.btn-white { background: var(--color-white); color: var(--color-primary); }
.btn-white:hover { background: var(--color-accent); color: var(--color-white); }
.btn-white-outline { color: var(--color-white); border-color: rgba(255, 255, 255, 0.82); }
.btn-white-outline:hover { background: var(--color-white); color: var(--color-primary); }

.hero-slider { position: relative; height: calc(100vh - var(--nav-height)); min-height: 620px; overflow: hidden; background: var(--color-primary-dark); }
.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1s ease;
}
.hero-slide.active { opacity: 1; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(64, 4, 24, 0.82) 0%, rgba(64, 4, 24, 0.52) 45%, rgba(64, 4, 24, 0.18) 100%); }
.hero-content { position: relative; z-index: 2; display: flex; flex-direction: column; justify-content: center; height: 100%; max-width: 720px; }
.hero-content h1 { color: var(--color-white); margin-bottom: 20px; }
.hero-content p { color: rgba(255, 255, 255, 0.88); font-size: 1.13rem; max-width: 600px; margin-bottom: 34px; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-proof { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 34px; color: rgba(255, 255, 255, 0.86); font-weight: 700; font-size: 0.92rem; }
.hero-proof span { border-left: 3px solid var(--color-accent); padding-left: 10px; }
.hero-dots { position: absolute; bottom: 34px; left: 50%; transform: translateX(-50%); display: flex; gap: 12px; z-index: 3; }
.hero-dots .dot { width: 34px; height: 4px; border-radius: 99px; border: none; background: rgba(255,255,255,0.4); cursor: pointer; transition: all var(--transition); }
.hero-dots .dot.active { background: var(--color-white); }

.categories-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 40px; }
.category-card { position: relative; aspect-ratio: 4 / 3; overflow: hidden; border-radius: var(--radius); background: var(--color-white); box-shadow: var(--shadow-sm); }
.category-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.category-card:hover img { transform: scale(1.04); }
.category-card-overlay { position: absolute; inset: 0; background: linear-gradient(0deg, rgba(53, 6, 24, 0.76) 0%, rgba(53, 6, 24, 0.08) 68%); display: flex; flex-direction: column; justify-content: flex-end; padding: 22px; }
.category-card-overlay h3 { color: var(--color-white); margin-bottom: 4px; font-size: 1.15rem; }
.category-card-overlay p { color: rgba(255,255,255,0.82); font-size: 0.9rem; }

.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; margin-top: 44px; text-align: center; }
.stat-item { background: var(--color-white); border: 1px solid var(--color-line); border-radius: var(--radius); padding: 28px 20px; }
.stat-number { font-size: 2.55rem; font-weight: 900; color: var(--color-primary); line-height: 1; margin-bottom: 8px; }
.stat-label { font-size: 0.94rem; color: var(--color-text-light); font-weight: 700; }

.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 34px; }
.product-card { background: var(--color-white); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid rgba(136, 8, 48, 0.08); transition: transform var(--transition), box-shadow var(--transition); }
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.product-card-img {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: linear-gradient(180deg, #f8f4ef 0%, #ffffff 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--color-line);
}
.product-card-img img { width: 100%; height: 100%; object-fit: contain; padding: 12px; transition: transform 0.5s ease; }
.product-card:hover .product-card-img img { transform: scale(1.03); }
.product-card-body { padding: 20px; }
.product-card-body h3 { font-size: 1.12rem; margin-bottom: 10px; }
.product-card-body .material { color: var(--color-accent); font-weight: 800; font-size: 0.78rem; text-transform: uppercase; margin-bottom: 7px; }
.tag-row { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.tag-row span { color: var(--color-primary); background: rgba(136, 8, 48, 0.08); padding: 4px 9px; border-radius: 999px; font-size: 0.75rem; font-weight: 800; }
.product-card-body .specs { display: flex; flex-wrap: wrap; gap: 8px; font-size: 0.82rem; color: var(--color-text-light); margin-bottom: 16px; }
.product-card-body .specs span { background: var(--color-bg); border: 1px solid var(--color-line); padding: 4px 9px; border-radius: 4px; }
.product-card .btn-inquiry { display: inline-flex; justify-content: center; width: 100%; text-align: center; padding: 10px; background: var(--color-primary); color: var(--color-white); font-weight: 800; font-size: 0.88rem; border-radius: 6px; transition: background var(--transition); }
.product-card .btn-inquiry:hover { background: var(--color-accent); }

.filter-tabs { display: flex; gap: 8px; margin: 20px 0 16px; flex-wrap: wrap; }
.filter-tab { padding: 10px 18px; border: 1px solid var(--color-line); background: var(--color-white); font-size: 0.88rem; font-weight: 800; color: var(--color-text); border-radius: 999px; cursor: pointer; transition: all var(--transition); box-shadow: var(--shadow-sm); }
.filter-tab.active { background: var(--color-primary); color: var(--color-white); border-color: var(--color-primary); }
.filter-tab:hover:not(.active) { background: var(--color-surface); }
.filter-group { margin-top: 28px; }
.filter-group h3 { font-size: 0.88rem; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 10px; color: var(--color-text-light); }
.catalog-toolbar { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; flex-wrap: wrap; margin-bottom: 16px; }
.product-count { color: var(--color-text-light); font-size: 0.92rem; font-weight: 700; }

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 9px;
  color: var(--color-text-light);
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 24px;
}
.breadcrumb a { color: var(--color-primary); }
.breadcrumb strong { color: var(--color-text); }
.product-detail-shell {
  padding: 28px 0 58px;
}
.product-detail-shell .container {
  max-width: min(1640px, calc(100vw - 80px));
}
.product-detail-layout {
  display: grid;
  grid-template-columns: 390px minmax(0, 1fr) 150px;
  gap: 34px;
  align-items: start;
}
.detail-sidebar {
  position: sticky;
  top: 96px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.detail-sidebar h1 {
  font-size: clamp(2.75rem, 3vw, 4.35rem);
  line-height: 0.98;
  color: var(--color-primary-dark);
  letter-spacing: 0;
  margin-bottom: -4px;
}
.detail-title-dash {
  width: 48px;
  height: 3px;
  background: var(--color-accent);
  margin: -4px 0 4px;
}
.detail-main-column {
  display: grid;
  align-content: start;
  gap: 10px;
}
.product-gallery-card {
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.product-main-image {
  height: 740px;
  background: var(--color-white);
  border: 0;
  border-top: 1px solid var(--color-line);
  border-radius: 0;
  box-shadow: none;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.product-main-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 22px;
}
.product-main-image img.is-rotated {
  width: min(130%, 720px);
  height: auto;
  max-width: none;
  transform: rotate(-90deg);
  transform-origin: center;
}
.image-note {
  border: 0;
  border-radius: 0;
  background: #fffdfb;
  padding: 14px 18px;
  color: var(--color-text-light);
  font-size: 0.92rem;
  font-weight: 700;
}
.image-note strong {
  display: block;
  color: var(--color-primary-dark);
  margin-bottom: 2px;
}
.image-note span {
  display: block;
}
.detail-thumbs {
  position: sticky;
  top: 96px;
}
.detail-thumbs p {
  color: var(--color-text-light);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.product-thumbs {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.product-thumb-section {
  display: grid;
  gap: 10px;
}
.product-thumb-section + .product-thumb-section {
  margin-top: 8px;
}
.product-thumb-group {
  color: var(--color-text-light);
  font-size: 0.65rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.product-thumbs button {
  position: relative;
  aspect-ratio: 1 / 1;
  border: 2px solid transparent;
  border-radius: 6px;
  background: var(--color-white);
  cursor: pointer;
  overflow: hidden;
  padding: 0;
}
.product-thumbs button.active { border-color: var(--color-accent); }
.product-thumbs img { width: 100%; height: 100%; object-fit: contain; padding: 6px; }
.product-thumbs img.is-rotated {
  width: auto;
  height: 78%;
  max-width: none;
  transform: rotate(-90deg);
  transform-origin: center;
}
.product-thumb-index {
  position: absolute;
  top: 6px;
  left: 6px;
  z-index: 1;
  min-width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  background: rgba(79, 6, 30, 0.72);
  color: var(--color-white);
  font-size: 0.68rem;
  font-weight: 900;
}
.product-thumb-name {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  padding: 16px 5px 5px;
  background: linear-gradient(180deg, rgba(79, 6, 30, 0) 0%, rgba(79, 6, 30, 0.72) 100%);
  color: var(--color-white);
  font-size: 0.62rem;
  line-height: 1.15;
  font-weight: 800;
  text-align: center;
}
.product-intro {
  color: var(--color-text-light);
  font-size: 1.16rem;
  line-height: 1.72;
}
.detail-highlight-icons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 2px 0 2px;
  text-align: center;
}
.detail-highlight-icons > div {
  min-width: 0;
}
.detail-highlight-icon {
  width: 50px;
  height: 50px;
  border: 2px solid var(--color-primary-dark);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 8px;
  background: var(--color-white);
}
.detail-highlight-icon svg {
  width: 25px;
  height: 25px;
  fill: none;
  stroke: var(--color-primary-dark);
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.detail-highlight-icons span:last-child {
  display: block;
  color: var(--color-text);
  font-size: 0.78rem;
  font-weight: 850;
  line-height: 1.25;
}
.custom-summary {
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-white);
  overflow: hidden;
}
.custom-summary h3 {
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 0.92rem;
  text-transform: uppercase;
  padding: 12px 15px;
}
.custom-summary .btn { width: calc(100% - 28px); margin: 0 14px 14px; }
.custom-summary .btn-primary {
  background: #17a34a;
  border-color: #17a34a;
  box-shadow: 0 10px 24px rgba(23, 163, 74, 0.22);
}
.custom-summary .btn-primary:hover {
  background: #11833a;
  border-color: #11833a;
  box-shadow: 0 12px 26px rgba(23, 163, 74, 0.28);
}
.custom-summary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 14px;
}
.custom-summary-grid span {
  min-height: 68px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  text-align: center;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
  line-height: 1.2;
}
.custom-summary-grid svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: var(--color-primary);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.quick-contact {
  display: grid;
  gap: 8px;
}
.quick-contact-card {
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-white);
  padding: 12px 14px;
  transition: border-color var(--transition), transform var(--transition);
}
.quick-contact-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-1px);
}
.quick-contact-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.quick-contact-icon.email {
  background: #eef4ff;
  color: #2f5f9f;
}
.quick-contact-icon.chat {
  background: #e8f5e9;
  color: #178b49;
}
.quick-contact-icon svg {
  width: 19px;
  height: 19px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.quick-contact strong {
  display: block;
  color: var(--color-primary-dark);
  font-size: 0.96rem;
}
.quick-contact-text > span {
  color: var(--color-text-light);
  font-size: 0.88rem;
}
.product-info-table {
  margin-top: 8px;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
}
.product-info-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 22px;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-line);
}
.product-info-head h2 {
  font-size: 1.28rem;
}
.product-info-head p {
  color: var(--color-text-light);
  font-size: 0.96rem;
  font-weight: 700;
  max-width: 360px;
}
.product-detail-block {
  padding: 20px 22px;
}
.product-detail-block + .product-detail-block {
  border-top: 1px solid var(--color-line);
}
.product-detail-block h3 {
  font-size: 1.08rem;
  margin-bottom: 14px;
}
.product-feature-list {
  display: grid;
  gap: 8px;
}
.product-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 650;
  line-height: 1.5;
}
.feature-check {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(243, 111, 33, 0.13);
  color: var(--color-accent);
  font-size: 0.82rem;
  font-weight: 900;
  margin-top: 1px;
}
.feature-check::before {
  content: '✓';
}
.product-spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 1rem;
  border: 1px solid var(--color-line);
}
.product-spec-table tr {
  border-bottom: 1px solid var(--color-line);
}
.product-spec-table tr:last-child {
  border-bottom: 0;
}
.product-spec-table th,
.product-spec-table td {
  padding: 11px 14px;
  text-align: left;
  vertical-align: top;
}
.product-spec-table th {
  width: 32%;
  background: #f6f2ee;
  color: var(--color-primary-dark);
  font-size: 0.9rem;
  font-weight: 900;
}
.product-spec-table td {
  color: var(--color-text);
  font-weight: 600;
}

.cta-banner { position: relative; background-size: cover; background-position: center; padding: 96px 0; overflow: hidden; }
.cta-banner-content { position: relative; z-index: 2; text-align: center; }
.cta-banner-content h2 { color: var(--color-white); margin-bottom: 12px; }
.cta-banner-content p { color: rgba(255,255,255,0.84); font-size: 1.08rem; margin-bottom: 30px; }

.split-panel { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.split-panel img { width: 100%; border-radius: var(--radius); background: var(--color-white); box-shadow: var(--shadow-sm); }
.feature-list { display: grid; gap: 14px; margin-top: 26px; }
.feature-list li { background: var(--color-white); border: 1px solid var(--color-line); border-radius: var(--radius); padding: 16px 18px; }
.feature-list strong { color: var(--color-primary-dark); display: block; margin-bottom: 3px; }
.feature-list span { color: var(--color-text-light); font-size: 0.94rem; }

.factory-hero {
  min-height: calc(100vh - var(--nav-height));
  padding: 0;
  background: var(--color-primary-dark);
}
.factory-hero .container {
  max-width: none;
  padding: 0;
}
.factory-hero-grid {
  position: relative;
  min-height: calc(100vh - var(--nav-height));
  display: grid;
  align-content: end;
  gap: 26px;
  overflow: hidden;
  border-radius: 0;
  padding: clamp(34px, 5.2vw, 66px);
  box-shadow: none;
}
.factory-hero-copy {
  position: relative;
  z-index: 1;
  max-width: 820px;
  min-width: 0;
}
.factory-hero-copy h1 {
  color: var(--color-white);
  font-size: clamp(2.55rem, 5.1vw, 5.15rem);
  max-width: 900px;
  text-shadow: 0 10px 34px rgba(35, 5, 16, 0.32);
}
.factory-hero-copy .section-lead {
  max-width: 720px;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(1rem, 1.35vw, 1.18rem);
}
.factory-hero-media {
  position: absolute;
  inset: 0;
  aspect-ratio: auto;
  min-height: 0;
  max-height: none;
  overflow: hidden;
  background: var(--color-primary-dark);
  box-shadow: none;
}
.factory-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.factory-hero-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(42, 4, 18, 0.82) 0%, rgba(42, 4, 18, 0.52) 42%, rgba(42, 4, 18, 0.1) 100%),
    linear-gradient(180deg, rgba(42, 4, 18, 0.08) 0%, rgba(42, 4, 18, 0.72) 100%);
  pointer-events: none;
}
.factory-hero-media figcaption {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 20px;
  z-index: 1;
  color: var(--color-white);
  font-size: 0.9rem;
  font-weight: 800;
}
.factory-hero-features {
  position: relative;
  z-index: 1;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 0;
}
.factory-hero-features li {
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(255, 255, 255, 0.34);
  backdrop-filter: blur(10px);
  box-shadow: 0 16px 42px rgba(35, 5, 16, 0.18);
}
.section-heading-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
}
.section-heading-row h2 {
  max-width: 620px;
}
.section-heading-row p {
  max-width: 430px;
  color: var(--color-text-light);
  font-weight: 600;
}
.section-heading-centered {
  display: grid;
  justify-content: center;
  text-align: center;
}
.section-heading-centered h2,
.section-heading-centered p {
  max-width: 680px;
}
.factory-focus-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 24px;
  margin-top: 38px;
}
.factory-focus-card {
  min-height: 318px;
  display: grid;
  grid-template-rows: minmax(190px, 1fr) auto;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--color-white);
  border: 1px solid var(--color-line);
  box-shadow: var(--shadow-sm);
}
.factory-focus-card-large {
  grid-row: span 2;
  grid-template-rows: minmax(420px, 1fr) auto;
}
.factory-focus-card img {
  width: 100%;
  height: 100%;
  min-height: 190px;
  object-fit: cover;
}
.factory-focus-card > div {
  padding: 24px;
}
.factory-focus-card h3 {
  margin-bottom: 8px;
}
.factory-focus-card p:not(.material) {
  color: var(--color-text-light);
}
.material {
  color: var(--color-accent);
  font-weight: 800;
  font-size: 0.78rem;
  text-transform: uppercase;
  margin-bottom: 7px;
}
.factory-quality-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 38px;
}
.factory-quality-card {
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--color-white);
  border: 1px solid rgba(136, 8, 48, 0.08);
  box-shadow: var(--shadow-sm);
}
.factory-quality-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--color-surface);
}
.factory-quality-card > div {
  padding: 22px;
}
.factory-quality-card h3 {
  margin-bottom: 12px;
}
.factory-quality-card .specs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--color-text-light);
}
.factory-quality-card .specs span {
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  padding: 4px 9px;
  border-radius: 4px;
}

.about-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; margin-top: 16px; }
.about-intro-text h2 { margin-bottom: 20px; }
.about-intro-text p { margin-bottom: 16px; font-size: 1.04rem; color: var(--color-text-light); }
.about-intro-img { border-radius: var(--radius); overflow: hidden; background: var(--color-white); box-shadow: var(--shadow-sm); }
.about-intro-img img { width: 100%; height: 100%; min-height: 340px; object-fit: cover; }

.advantages-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }
.advantage-card { background: var(--color-white); padding: 32px 28px; border-radius: var(--radius); box-shadow: var(--shadow-sm); border: 1px solid var(--color-line); }
.advantage-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 18px;
  background: var(--color-surface);
}
.advantage-icon { width: 42px; height: 42px; border-radius: 8px; background: rgba(243, 111, 33, 0.12); color: var(--color-accent); display: flex; align-items: center; justify-content: center; font-weight: 900; margin-bottom: 16px; }
.advantage-card h3 { margin-bottom: 8px; }
.advantage-card p { font-size: 0.95rem; color: var(--color-text-light); }

.timeline { position: relative; margin-top: 48px; padding-left: 24px; }
.timeline::before { content: ''; position: absolute; left: 8px; top: 0; bottom: 0; width: 2px; background: var(--color-line); }
.timeline-item { display: grid; grid-template-columns: 80px auto 1fr; gap: 16px; margin-bottom: 36px; align-items: start; }
.timeline-year { font-size: 1.35rem; font-weight: 900; color: var(--color-primary); text-align: right; }
.timeline-dot { width: 16px; height: 16px; border-radius: 50%; background: var(--color-accent); margin-top: 5px; position: relative; z-index: 1; }
.timeline-content h4 { font-size: 1.1rem; margin-bottom: 4px; color: var(--color-primary-dark); }
.timeline-content p { font-size: 0.95rem; color: var(--color-text-light); }

.service-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-top: 44px; }
.service-step { background: var(--color-white); padding: 30px 22px; border-radius: var(--radius); box-shadow: var(--shadow-sm); border: 1px solid var(--color-line); }
.step-number { font-size: 2.3rem; font-weight: 900; color: rgba(136, 8, 48, 0.16); line-height: 1; margin-bottom: 12px; }
.service-step h3 { margin-bottom: 8px; }
.service-step p { font-size: 0.94rem; color: var(--color-text-light); }

.capabilities-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 38px; }
.capability-item { background: var(--color-white); padding: 24px 20px; border-radius: var(--radius); text-align: left; border: 1px solid var(--color-line); }
.capability-item strong { display: block; font-size: 1.04rem; color: var(--color-primary); margin-bottom: 8px; }
.capability-item p { font-size: 0.9rem; color: var(--color-text-light); }

.contact-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 56px; }
.contact-form { background: var(--color-white); padding: 36px; border-radius: var(--radius); box-shadow: var(--shadow-sm); border: 1px solid var(--color-line); }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-weight: 800; font-size: 0.88rem; margin-bottom: 6px; color: var(--color-primary-dark); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(243, 111, 33, 0.12);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.contact-info { display: flex; flex-direction: column; gap: 18px; }
.contact-info-card { display: flex; gap: 14px; align-items: flex-start; background: var(--color-white); padding: 22px; border-radius: var(--radius); box-shadow: var(--shadow-sm); border: 1px solid var(--color-line); }
.contact-info-icon { flex-shrink: 0; width: 42px; height: 42px; display: flex; align-items: center; justify-content: center; background: rgba(136, 8, 48, 0.09); color: var(--color-primary); border-radius: var(--radius); font-weight: 900; }
.contact-info-card h4 { font-size: 0.9rem; font-weight: 900; margin-bottom: 4px; color: var(--color-primary-dark); }
.contact-info-card p { font-size: 0.9rem; color: var(--color-text-light); }
.contact-info-card p + p { margin-top: 10px; }

.footer { background: var(--color-primary-dark); color: rgba(255,255,255,0.7); padding: 62px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.2fr 1.2fr; gap: 42px; }
.footer h4 { color: var(--color-white); font-size: 0.82rem; font-weight: 900; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 18px; }
.footer-logo { display: flex; align-items: center; gap: 10px; font-size: 1rem; font-weight: 900; color: var(--color-white); margin-bottom: 14px; }
.footer-logo img { width: 42px; height: 42px; object-fit: contain; background: var(--color-white); border-radius: 4px; padding: 3px; }
.footer-about p { font-size: 0.9rem; line-height: 1.7; margin-bottom: 8px; }
.footer-links li { margin-bottom: 10px; font-size: 0.9rem; }
.footer-links a { transition: color var(--transition); }
.footer-links a:hover { color: var(--color-accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); margin-top: 46px; padding-top: 24px; text-align: center; font-size: 0.84rem; }

@media (min-width: 1440px) {
  .product-detail-shell .container {
    max-width: min(1760px, calc(100vw - 80px));
  }
  .product-detail-layout {
    grid-template-columns: 400px minmax(0, 1fr) 150px;
    gap: 32px;
  }
  .detail-sidebar {
    gap: 20px;
  }
  .product-main-image img {
    padding: 20px;
  }
  .product-main-image {
    height: 800px;
  }
  .product-main-image img.is-rotated {
    width: min(130%, 780px);
  }
  .product-thumbs {
    gap: 14px;
  }
  .product-thumb-section {
    gap: 12px;
  }
  .product-thumb-name {
    font-size: 0.68rem;
  }
}

@media (max-width: 1120px) {
  .navbar-links { gap: 14px; }
  .navbar-links a { font-size: 0.72rem; }
  .product-detail-layout { grid-template-columns: 280px minmax(0, 1fr) 92px; gap: 18px; }
  .product-main-image { height: 620px; }
  .product-main-image img.is-rotated { width: min(130%, 600px); }
}
@media (max-width: 1023px) {
  .categories-grid, .stats-grid, .capabilities-grid, .service-steps { grid-template-columns: repeat(2, 1fr); }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .split-panel, .about-intro { grid-template-columns: 1fr; gap: 34px; }
  .factory-hero { padding: 0; }
  .factory-hero-grid {
    min-height: calc(100vh - var(--nav-height));
    padding: 32px;
  }
  .factory-hero-grid, .factory-focus-grid { grid-template-columns: 1fr; }
  .factory-hero-features { grid-template-columns: 1fr; }
  .factory-focus-card-large { grid-row: auto; grid-template-rows: minmax(280px, 1fr) auto; }
  .factory-quality-grid { grid-template-columns: 1fr; }
  .section-heading-row { align-items: flex-start; flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .navbar-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
    gap: 16px;
    box-shadow: var(--shadow-md);
  }
  .navbar-links.active { display: flex; }
  .navbar-toggle { display: flex; }
  .product-detail-layout {
    grid-template-columns: minmax(0, 1fr) 82px;
    grid-template-areas:
      "main thumbs"
      "sidebar sidebar";
  }
  .detail-main-column { grid-area: main; }
  .detail-thumbs { grid-area: thumbs; position: static; }
  .detail-sidebar { grid-area: sidebar; position: static; }
  .product-info-head { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 767px) {
  .container { padding: 0 18px; }
  .navbar .container { padding-inline: 18px; }
  .section { padding: 58px 0; }
  .factory-hero { padding: 0; }
  .factory-hero-grid {
    min-height: calc(100vh - var(--nav-height));
    padding: 24px 18px;
    gap: 18px;
  }
  .factory-hero-copy h1 { font-size: clamp(2rem, 10vw, 3rem); }
  .factory-hero-media figcaption { display: none; }
  .factory-focus-card, .factory-focus-card-large { min-height: 0; grid-template-rows: auto auto; }
  .factory-focus-card img, .factory-quality-card img { aspect-ratio: 4 / 3; min-height: 0; }
  .factory-focus-card > div, .factory-quality-card > div { padding: 20px; }
  .hero-slider { height: auto; min-height: 560px; }
  .hero-content { min-height: 560px; padding: 48px 18px 70px; }
  .hero-content h1 { font-size: 2.35rem; }
  .hero-content p { font-size: 1rem; }
  .categories-grid, .stats-grid, .products-grid, .advantages-grid, .service-steps, .capabilities-grid, .footer-grid, .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 26px 20px; }
  .timeline-item { grid-template-columns: 56px auto 1fr; }
  .timeline-year { font-size: 1rem; }
  .catalog-toolbar { align-items: flex-start; }
  .navbar-logo span { font-size: 0.92rem; }
  .product-detail-shell { padding-top: 22px; }
  .product-detail-block { padding: 18px; }
  .product-spec-table th,
  .product-spec-table td { padding: 11px 12px; }
  .product-spec-table th { width: 36%; }
  .product-detail-layout {
    grid-template-columns: minmax(0, 1fr) 66px;
    gap: 12px;
  }
  .product-main-image { height: 420px; }
  .product-main-image img.is-rotated { width: min(126%, 400px); }
  .product-thumbs { gap: 8px; }
  .custom-summary-grid { grid-template-columns: repeat(2, 1fr); }
}