/* ===== Design tokens (Figma) ===== */
:root {
  --color-primary: #1e5bbf;
  --color-navy: #0b1a30;
  --color-navy-deep: #081324;
  --color-navy-overlay: rgba(8, 19, 36, 0.95);
  --color-text: #475569;
  --color-text-muted: #64748b;
  --color-text-light: #94a3b8;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;
  --color-bg-soft: #f8fafc;
  --color-bg-section: #f8fafd;
  --color-white: #fff;
  --font-cn: "PingFang SC", "Microsoft YaHei", "WenQuanYi Zen Hei", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --font-display: "Space Grotesk", var(--font-cn);
  --container-max: 1400px;
  --header-h: 80px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 1px rgba(0, 0, 0, 0.05);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-cn);
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.25s var(--ease), opacity 0.25s var(--ease); }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4, p { margin: 0; }
.mono { font-family: var(--font-mono); }
.space { font-family: var(--font-display); }

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 48px;
  padding-right: 48px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: transform 0.2s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease);
}
.btn:active { transform: scale(0.98); }
.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: #184da3; box-shadow: 0 4px 14px rgba(30, 91, 191, 0.35); }
.btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(2px);
  padding: 15px 29px;
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.15); border-color: rgba(255, 255, 255, 0.5); }
.btn-dark {
  background: var(--color-navy);
  color: var(--color-white);
  padding: 10px 20px;
  font-size: 12px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
}
.btn-dark:hover { background: #152a4a; }
.btn-sm { padding: 10px 20px; font-size: 12px; }
.btn-block { width: 100%; padding: 14px 24px; }
.btn-outline-light {
  background: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 15px 25px;
}
.btn-outline-light:hover { border-color: rgba(255, 255, 255, 0.45); background: rgba(255, 255, 255, 0.06); }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--color-primary);
  font-weight: 500;
}
.link-arrow:hover { opacity: 0.85; gap: 10px; }

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(4px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow 0.3s var(--ease), background 0.3s var(--ease);
}
.site-header.is-scrolled {
  box-shadow: 0 4px 24px rgba(11, 26, 48, 0.08);
}
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo img {
  height: 68px;
  width: auto;
  max-width: min(560px, 55vw);
  object-fit: contain;
  object-position: left center;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 0;
  flex: 1;
  justify-content: center;
}
.nav-link {
  position: relative;
  padding: 8px 16px;
  font-size: 14px;
  color: var(--color-text);
  white-space: nowrap;
}
.nav-link:hover { color: var(--color-navy); }
.nav-link.is-active {
  color: var(--color-navy);
  font-weight: 500;
}
.nav-link.is-active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 4px;
  height: 2px;
  background: var(--color-primary);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-shrink: 0;
}
.header-phone {
  display: flex;
  align-items: center;
  gap: 8px;
}
.header-phone-label { font-size: 12px; color: var(--color-text-muted); }
.header-phone-num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 14px;
  color: var(--color-navy);
  letter-spacing: -0.35px;
}
.header-phone-num:hover { color: var(--color-primary); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-white);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-navy);
  transition: transform 0.3s var(--ease), opacity 0.3s;
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 760px;
  margin-top: var(--header-h);
  display: grid;
  grid-template-rows: 1fr auto;
  overflow: hidden;
  background: var(--color-navy);
}
.hero-slides {
  position: absolute;
  inset: 0;
}
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s var(--ease);
  pointer-events: none;
}
.hero-slide.is-active {
  opacity: 1;
  pointer-events: auto;
}
.hero-bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  transform: scale(1.05);
  transition: transform 8s linear;
}
.hero-slide.is-active .hero-bg { transform: scale(1); }
.hero-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-overlay-h {
  background: linear-gradient(90deg, rgba(8, 19, 36, 0.95) 0%, rgba(11, 26, 48, 0.8) 50%, rgba(11, 26, 48, 0) 100%);
}
.hero-overlay-v {
  background: linear-gradient(0deg, rgba(8, 19, 36, 0.9) 0%, rgba(8, 19, 36, 0) 50%, rgba(8, 19, 36, 0.3) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  grid-row: 1;
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 0;
  padding-top: 0;
  padding-bottom: 0;
}
.hero-copy { max-width: 672px; }
.hero-tag {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-left: 14px;
  border-left: 2px solid var(--color-primary);
  font-size: 12px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: #cbd5e1;
  margin-bottom: 16px;
}
.tag-muted { color: var(--color-text-muted); }
.tag-cn { text-transform: none; letter-spacing: 1.2px; }
.hero-title {
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1;
  letter-spacing: -1.2px;
  color: var(--color-white);
  font-weight: 500;
  margin-bottom: 8px;
}
.hero-title-line { display: block; }
.hero-desc {
  max-width: 576px;
  font-size: clamp(15px, 2vw, 18px);
  line-height: 1.55;
  color: #cbd5e1;
  margin-top: 8px;
  min-height: 3.1em;
  transition: opacity 0.4s var(--ease);
}
.hero-desc.is-fading { opacity: 0; }
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 24px;
}
.hero-bar {
  position: relative;
  z-index: 2;
  grid-row: 2;
  backdrop-filter: blur(6px);
  background: rgba(8, 19, 36, 0.4);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.hero-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 48px;
}
.hero-tabs {
  display: flex;
  flex: 1;
  max-width: 768px;
  gap: 48px;
}
.hero-tab {
  flex: 1;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  text-align: left;
  color: #cbd5e1;
}
.hero-tab-bar {
  display: block;
  height: 4px;
  width: 100%;
  background: rgba(255, 255, 255, 0.2);
  margin-bottom: 10px;
  transition: background 0.35s var(--ease);
}
.hero-tab.is-active .hero-tab-bar { background: var(--color-primary); }
.hero-tab-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  transition: color 0.35s;
}
.hero-tab.is-active .hero-tab-label { color: var(--color-white); }
.hero-tab.is-active .tab-num {
  color: var(--color-primary);
  font-weight: 700;
}
.hero-tab:not(.is-active) .tab-num {
  color: var(--color-text-light);
  font-weight: 400;
}
.hero-nav { display: flex; gap: 8px; }
.hero-nav-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
  transition: background 0.25s, border-color 0.25s;
}
.hero-nav-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.35);
}

/* ===== Sections ===== */
.section {
  padding: 96px 0;
}
.section-products {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border-light);
}
.section-industries {
  background: var(--color-bg-section);
  border-bottom: 1px solid var(--color-border);
}
.section-quality {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border-light);
}
.section-cta {
  background: var(--color-navy);
  padding: 80px 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  padding-bottom: 25px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 64px;
}
.section-kicker {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 7px;
}
.section-kicker.muted { color: var(--color-text-light); }
.section-title {
  font-size: clamp(24px, 3vw, 30px);
  letter-spacing: -0.75px;
  color: var(--color-navy);
  font-weight: 500;
  line-height: 1.2;
}
.section-title.light { color: var(--color-white); }
.section-intro {
  max-width: 448px;
  font-size: 14px;
  line-height: 1.625;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

/* ===== Products carousel ===== */
.products-wrap {
  position: relative;
}
.products-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  transition: transform 0.5s var(--ease);
}
.product-card {
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-white);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(11, 26, 48, 0.1);
  border-color: rgba(30, 91, 191, 0.25);
}
.product-img-wrap {
  margin: 24px 24px 0;
  height: 192px;
  background: var(--color-bg-soft);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
}
.product-img-wrap img {
  max-height: 168px;
  max-width: 100%;
  width: auto;
  object-fit: contain;
}
.product-series {
  margin: 16px 24px 0;
  font-size: 12px;
  color: var(--color-text-light);
}
.product-name {
  margin: 4px 24px 0;
  font-size: 18px;
  color: var(--color-navy);
  font-weight: 500;
  line-height: 1.4;
}
.product-desc {
  margin: 8px 24px 0;
  font-size: 12px;
  line-height: 1.625;
  color: var(--color-text-muted);
  min-height: 39px;
}
.product-card-foot {
  padding: 24px;
  margin-top: auto;
}
.product-specs {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding-top: 17px;
  border-top: 1px solid var(--color-border-light);
  font-size: 12px;
  color: #475569;
  margin-bottom: 19px;
  flex-wrap: wrap;
}
.carousel-btn {
  display: none;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-white);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 2;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}
.carousel-prev { left: -12px; }
.carousel-next { right: -12px; }
.products-dots {
  display: none;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
}
.products-dots button {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background: var(--color-border);
  cursor: pointer;
  padding: 0;
  transition: background 0.3s, transform 0.3s;
}
.products-dots button.is-active {
  background: var(--color-primary);
  transform: scale(1.25);
}

/* ===== Industries ===== */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.industry-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 33px;
  display: flex;
  flex-direction: column;
  min-height: 100%;
  transition: transform 0.35s var(--ease), box-shadow 0.35s;
}
.industry-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(11, 26, 48, 0.08);
}
.industry-icon {
  width: 48px;
  height: 48px;
  border: 1px solid var(--color-border-light);
  background: var(--color-bg-soft);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.industry-card h3 {
  margin-top: 24px;
  font-size: 18px;
  color: var(--color-navy);
  font-weight: 500;
}
.industry-card p {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.625;
  color: #475569;
  flex: 1;
}
.industry-foot {
  margin-top: 24px;
  padding-top: 33px;
  border-top: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.link-text {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--color-primary);
  font-weight: 500;
}

/* ===== Quality ===== */
.quality-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 64px;
  align-items: center;
}
.quality-media {
  position: relative;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  overflow: hidden;
}
.quality-media img {
  width: 100%;
  aspect-ratio: 732 / 409;
  object-fit: cover;
}
.quality-badge {
  position: absolute;
  left: 16px;
  bottom: 16px;
  padding: 6px 12px;
  background: rgba(11, 26, 48, 0.9);
  backdrop-filter: blur(4px);
  border-radius: 4px;
  font-size: 12px;
  color: var(--color-white);
}
.quality-content .section-title { margin: 4px 0 24px; }
.quality-text {
  font-size: 14px;
  line-height: 1.625;
  color: #475569;
  margin-bottom: 32px;
}
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  padding-top: 33px;
  border-top: 1px solid var(--color-border);
}
.stat-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: -0.6px;
  line-height: 1.3;
}
.stat-unit {
  font-size: 14px;
  font-weight: 400;
  color: var(--color-text-muted);
}
.stat-label {
  margin-top: 4px;
  font-size: 12px;
  color: #334155;
}
.stat-sub {
  font-size: 12px;
  color: var(--color-text-light);
}

/* ===== CTA ===== */
.cta-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}
.cta-copy { max-width: 672px; flex: 1; }
.cta-desc {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.625;
  color: #cbd5e1;
}
.cta-contacts {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 20px 32px;
  margin-top: 21px;
}
.cta-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  flex: 1 1 280px;
  min-width: min(100%, 280px);
  max-width: 100%;
}
.cta-contact-item > img {
  flex: 0 0 auto;
  width: 14px;
  height: 16px;
  max-width: none;
  margin-top: 2px;
}
.cta-contact-item > img[width="13"] {
  width: 13px;
  height: 18px;
}
.cta-contact-item > div { min-width: 0; }
.cta-contact-label { font-size: 12px; color: var(--color-text-light); }
.cta-contact-value {
  font-size: 16px;
  color: var(--color-white);
  margin-top: 2px;
}
.cta-contact-value a:hover { color: var(--color-primary); }
.cta-panel {
  flex: 1;
  max-width: 448px;
  padding: 33px;
  background: rgba(8, 19, 36, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.cta-panel h3 {
  font-size: 16px;
  color: var(--color-white);
  font-weight: 500;
}
.cta-panel-sub {
  font-size: 12px;
  color: var(--color-text-light);
}
.cta-panel .btn { margin-top: 8px; }

/* ===== Footer ===== */
.site-footer {
  background: var(--color-navy-deep);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 49px 0 48px;
  color: var(--color-text-light);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
}
.footer-name {
  font-size: 14px;
  color: var(--color-white);
  letter-spacing: -0.35px;
  margin-bottom: 11px;
}
.footer-about {
  font-size: 12px;
  line-height: 1.625;
  max-width: 384px;
  margin-bottom: 8px;
}
.footer-en {
  font-size: 12px;
  color: var(--color-text-muted);
}
.footer-col h4 {
  font-size: 12px;
  color: var(--color-white);
  letter-spacing: 0.6px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.footer-col li { margin-bottom: 8px; }
.footer-col a {
  font-size: 12px;
  color: var(--color-text-light);
}
.footer-col a:hover { color: var(--color-white); }
.footer-addr { font-family: var(--font-cn); }
.footer-bottom {
  margin-top: 48px;
  padding-top: 33px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 12px;
  color: var(--color-text-muted);
}
.footer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.footer-meta a:hover { color: var(--color-white); }

/* ===== About page ===== */
.page-hero {
  position: relative;
  margin-top: var(--header-h);
  min-height: 560px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: var(--color-navy);
}
.page-hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
}
.page-hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  min-width: 0;
  padding-top: 120px;
  padding-bottom: 72px;
}
.page-hero .hero-copy { max-width: 720px; }
.page-hero .hero-desc { min-height: 0; }
.page-hero .hero-title { line-height: 1.15; }

.about-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px 32px;
  margin-top: 8px;
  padding-top: 33px;
  border-top: 1px solid var(--color-border);
}
.about-fact-kicker {
  font-size: 12px;
  letter-spacing: 0.4px;
  color: var(--color-text-light);
}
.about-fact-value {
  margin-top: 4px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-navy);
}

.about-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.about-shot {
  position: relative;
  margin: 0;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  overflow: hidden;
  background: var(--color-navy);
}
.about-shot img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  object-position: center 42%;
}
.about-shot figcaption {
  position: absolute;
  left: 16px;
  bottom: 16px;
  max-width: calc(100% - 32px);
  padding: 6px 12px;
  background: rgba(11, 26, 48, 0.9);
  backdrop-filter: blur(4px);
  border-radius: 4px;
  font-size: 12px;
  color: var(--color-white);
}

.about-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.about-step {
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-white);
  padding: 33px;
  min-height: 100%;
}
.about-step-num {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.6px;
  color: var(--color-primary);
}
.industry-card .about-step-num {
  flex: none;
  margin-top: 0;
  line-height: 1.4;
}
.industry-card .about-step-num + h3 { margin-top: 16px; }
.about-step h3 {
  margin-top: 16px;
  font-size: 18px;
  font-weight: 500;
  color: var(--color-navy);
}
.about-step p {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.625;
  color: #475569;
}

/* ===== Products page ===== */
#catalog,
#dl,
#ex,
#cx,
#airknife,
#select {
  scroll-margin-top: calc(var(--header-h) + 12px);
}
.series-jump {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.series-link {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 100%;
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-white);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s;
}
.series-link:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(11, 26, 48, 0.08);
  border-color: rgba(30, 91, 191, 0.25);
}
.series-link strong {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-navy);
  line-height: 1.4;
}
.series-link-meta {
  font-size: 12px;
  line-height: 1.5;
  color: var(--color-text-muted);
}
.product-band {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 64px;
  align-items: center;
}
.product-band.is-flip { grid-template-columns: 7fr 5fr; }
.product-stage {
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  min-height: 440px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}
.product-stage img {
  width: auto;
  max-width: 100%;
  max-height: 360px;
  object-fit: contain;
}
.product-copy .section-title { margin: 4px 0 24px; }
.product-copy .quality-text:last-of-type { margin-bottom: 0; }
.product-copy .about-facts { margin-top: 28px; }
.product-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin-top: 28px;
}
.product-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
a.product-card { color: inherit; }
.detail-page { margin-top: var(--header-h); }
.crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 32px;
  font-size: 12px;
  color: var(--color-text-muted);
}
.crumb a { color: var(--color-primary); }
.crumb a:hover { opacity: 0.8; }
.crumb-current { color: var(--color-navy); }
.related-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
#ferment,
#water,
#vacuum,
#powder {
  scroll-margin-top: calc(var(--header-h) + 12px);
}
.industry-panel {
  padding: 40px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-bg-section);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}
.industry-panel h2 {
  margin: 20px 0 0;
  font-size: clamp(24px, 3vw, 30px);
  font-weight: 500;
  letter-spacing: -0.75px;
  line-height: 1.2;
  color: var(--color-navy);
}
.industry-panel .link-text { margin-top: 16px; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.contact-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  min-height: 100%;
  padding: 33px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-white);
  color: inherit;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s;
}
a.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(11, 26, 48, 0.08);
  border-color: rgba(30, 91, 191, 0.25);
}
.contact-card h2 {
  font-family: var(--font-mono);
  font-size: clamp(22px, 2vw, 28px);
  font-weight: 600;
  letter-spacing: -0.4px;
  line-height: 1.3;
  color: var(--color-navy);
}
.contact-card p {
  font-size: 14px;
  line-height: 1.625;
  color: #475569;
}
.contact-card .link-arrow { margin-top: auto; padding-top: 16px; }
.contact-card .contact-address {
  font-family: var(--font-cn);
  font-size: clamp(20px, 2vw, 24px);
  font-weight: 500;
}

/* ===== Scroll reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1200px) {
  .products-track { grid-template-columns: repeat(2, 1fr); }
  .product-list { grid-template-columns: repeat(2, 1fr); }
  .industries-grid { grid-template-columns: repeat(2, 1fr); }
  .quality-grid { grid-template-columns: 1fr; }
  .header-phone-label { display: none; }
}

@media (max-width: 992px) {
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.35s var(--ease), opacity 0.35s;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
  }
  .main-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-link { padding: 12px 8px; }
  .nav-toggle { display: flex; }
  .header-actions .btn-dark { display: none; }
  .hero-tabs { gap: 16px; }
  .cta-grid { flex-direction: column; }
  .cta-panel { max-width: 100%; width: 100%; }
  .about-steps { grid-template-columns: 1fr; }
  .series-jump { grid-template-columns: 1fr 1fr; }
  .product-band,
  .product-band.is-flip { grid-template-columns: 1fr; }
  .product-band.is-flip .product-stage { order: -1; }
  .product-band.is-flip .industry-panel { order: -1; }
  .product-stage { min-height: 320px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .container { padding-left: 20px; padding-right: 20px; }
  .hero-bar-inner { padding: 16px 20px; flex-wrap: wrap; }
  .hero-tabs { flex-direction: column; gap: 12px; max-width: 100%; }
  .hero-nav { width: 100%; justify-content: flex-end; }
  .section { padding: 64px 0; }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 40px;
  }
  .products-wrap { padding: 0 8px; }
  .products-track {
    display: flex;
    gap: 16px;
    overflow: hidden;
    grid-template-columns: unset;
  }
  .product-card {
    flex: 0 0 calc(100% - 32px);
    min-width: calc(100% - 32px);
  }
  .carousel-btn { display: flex; }
  .products-dots { display: flex; }
  .industries-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; gap: 24px; }
  .about-facts { grid-template-columns: 1fr; }
  .about-steps { grid-template-columns: 1fr; }
  .about-gallery { grid-template-columns: 1fr; }
  .about-shot img { height: 220px; }
  .series-jump { grid-template-columns: 1fr; }
  .product-list { grid-template-columns: 1fr; }
  .product-list .product-card { flex: none; min-width: 0; }
  .related-list { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .page-hero { min-height: 460px; }
  .page-hero-content { padding-top: 88px; padding-bottom: 48px; }
  .page-hero .hero-overlay-h {
    background: linear-gradient(180deg, rgba(8, 19, 36, 0.55) 0%, rgba(8, 19, 36, 0.82) 42%, rgba(8, 19, 36, 0.92) 100%);
  }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .logo img { height: 52px; max-width: min(360px, 62vw); }
}

@media (max-width: 480px) {
  .hero { min-height: 640px; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .header-phone { display: none; }
}