/* ============================================
   Jiangshi Precision — Industrial Minimalist
   Design System v3 — Bright Yellow Edition
   ============================================ */

/* ---- Design Tokens ---- */
:root {
  /* Colors */
  --color-white: #ffffff;
  --color-bg: #f8f8f6;
  --color-bg-alt: #f0f0ed;
  --color-bg-dark: #0f0f0f;
  --color-bg-dark-2: #161616;
  --color-text: #1a1a1a;
  --color-text-soft: #5a5a55;
  --color-text-muted: #8a8a85;
  --color-border: #e2e2dd;
  --color-border-light: #ececea;
  --color-accent: #FFE100;

  /* Typography */
  --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;

  /* Layout */
  --container: 1280px;
  --container-wide: 1440px;
  --section-py: 160px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease: var(--ease-out);
  --t-fast: 0.25s;
  --t-base: 0.5s;
  --t-slow: 0.9s;
  --t-slower: 1.2s;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.65;
  letter-spacing: -0.01em;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}

img, video {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}

ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
button:focus-visible, a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.mono {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.8125em;
  letter-spacing: 0.04em;
}

/* ---- Layout ---- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 48px;
}

.container-wide {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 48px;
}

.section {
  padding: var(--section-py) 0;
  position: relative;
}

/* ---- Section Header ---- */
.section-header {
  max-width: 720px;
  margin-bottom: 80px;
}

.section-header.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-header.light .section-title,
.section-header.light .section-desc {
  color: var(--color-white);
}

.section-header.light .section-label {
  color: var(--color-accent);
  border-color: rgba(255, 225, 0, 0.4);
}

.section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding-bottom: 12px;
  margin-bottom: 24px;
  border-bottom: 2px solid var(--color-accent);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(34px, 4.8vw, 60px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  color: var(--color-text);
  text-wrap: pretty;
}

.section-desc {
  margin-top: 24px;
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-text-soft);
  max-width: 560px;
}

.section-header.center .section-desc {
  margin-left: auto;
  margin-right: auto;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 30px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  border: none;
  border-radius: 0;
  cursor: pointer;
  transition: all var(--t-base) var(--ease);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.btn svg {
  width: 18px;
  height: 18px;
  transition: transform var(--t-base) var(--ease);
}

.btn:hover svg {
  transform: translateX(5px);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-text);
  box-shadow: 0 2px 8px rgba(255, 225, 0, 0.2);
}

.btn-primary:hover {
  filter: brightness(0.92);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 225, 0, 0.25);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-text);
}

.btn-outline:hover {
  background: var(--color-text);
  color: var(--color-bg);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

.btn-block {
  width: 100%;
  justify-content: center;
}

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 24px 0;
  transition: padding var(--t-base) var(--ease),
              background var(--t-base) var(--ease),
              border var(--t-base) var(--ease),
              backdrop-filter var(--t-base) var(--ease);
}

.nav.scrolled {
  padding: 16px 0;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--color-border-light);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.02);
}

.nav-inner {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 11px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.nav-logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--color-text);
  color: var(--color-accent);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0;
  transition: all var(--t-base) var(--ease);
}

.nav-logo:hover .nav-logo-mark {
  background: var(--color-accent);
  color: var(--color-text);
  transform: rotate(-6deg);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 38px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
  letter-spacing: -0.01em;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--t-base) var(--ease);
}

.nav-links a:hover::after { width: 100%; }

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 11px 24px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  background: var(--color-accent);
  color: var(--color-text);
  transition: all var(--t-base) var(--ease);
  box-shadow: 0 2px 8px rgba(255, 225, 0, 0.15);
}

.nav-cta:hover {
  filter: brightness(0.92);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(255, 225, 0, 0.25);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
  width: 34px;
  height: 34px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  transition: all var(--t-base) var(--ease);
}

/* ---- Hero ---- */
.hero {
  position: relative;
  height: 100vh;
  min-height: 760px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-slider {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero-slides {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--t-slower) var(--ease);
  pointer-events: none;
}

.hero-slide.active {
  opacity: 1;
  pointer-events: auto;
}

.hero-slide video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1s var(--ease);
}

.hero-slide video.loaded {
  opacity: 1;
}

.hero-slide-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      100deg,
      rgba(255, 255, 255, 0.94) 0%,
      rgba(248, 248, 246, 0.86) 40%,
      rgba(248, 248, 246, 0.60) 70%,
      rgba(248, 248, 246, 0.40) 100%
    );
}

.hero-slide-label {
  position: absolute;
  bottom: 80px;
  right: 48px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  color: var(--color-text);
  font-size: 11px;
  letter-spacing: 0.12em;
  border-left: 3px solid var(--color-accent);
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  transition-delay: 0.5s;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.hero-slide.active .hero-slide-label {
  opacity: 1;
  transform: translateX(0);
}

.label-dot {
  width: 7px;
  height: 7px;
  background: var(--color-accent);
  border-radius: 50%;
  flex-shrink: 0;
}

/* Slider Navigation Buttons */
.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 4;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.9);
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--t-base) var(--ease);
  padding: 0;
}

.slider-btn:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-text);
  transform: translateY(-50%) scale(1.06);
  box-shadow: 0 6px 20px rgba(255, 225, 0, 0.3);
}

.slider-btn:active {
  transform: translateY(-50%) scale(0.97);
}

.slider-btn svg {
  width: 22px;
  height: 22px;
  stroke-width: 1.5;
}

.slider-prev {
  left: 28px;
}

.slider-next {
  right: 28px;
}

/* Slider Dots */
.slider-dots {
  position: absolute;
  bottom: 44px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 14px;
}

.slider-dot {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 24px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}

.slider-dot span {
  display: block;
  width: 26px;
  height: 2px;
  background: rgba(26, 26, 26, 0.2);
  transition: all var(--t-base) var(--ease);
  border-radius: 1px;
}

.slider-dot:hover span {
  background: rgba(26, 26, 26, 0.45);
}

.slider-dot.active span {
  width: 36px;
  background: var(--color-accent);
  box-shadow: 0 0 8px rgba(255, 225, 0, 0.5);
}

/* Hero Content */
.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 48px;
  width: 100%;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--color-text-soft);
  margin-bottom: 36px;
}

.pulse-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  position: relative;
}

.pulse-dot::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.5;
  animation: pulse 2.2s ease-out infinite;
}

@keyframes pulse {
  0% { transform: scale(1); opacity: 0.5; }
  100% { transform: scale(2.8); opacity: 0; }
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 3.75vw, 54px);
  line-height: 1.1;
  letter-spacing: -0.035em;
  margin-bottom: 22px;
  text-wrap: balance;
}

.hero-title .accent-text {
  background: var(--color-text);
  color: var(--color-accent);
  padding: 0 10px;
  display: inline-block;
  margin-top: 6px;
  font-weight: 700;
}

.hero-subtitle {
  font-size: 18px;
  line-height: 1.65;
  color: var(--color-text-soft);
  max-width: 580px;
  margin-bottom: 48px;
  letter-spacing: -0.01em;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.hero-stats {
  display: flex;
  gap: 56px;
  padding-top: 36px;
  border-top: 1px solid var(--color-border);
  max-width: 640px;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.hero-stat-num {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 500;
  letter-spacing: -0.03em;
  color: var(--color-text);
  line-height: 1.1;
}

.hero-stat-num .unit {
  font-size: 15px;
  font-weight: 400;
  color: var(--color-text-muted);
  margin-left: 3px;
  letter-spacing: 0;
}

.hero-stat-label {
  font-size: 12px;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  font-weight: 500;
}

.hero-scroll-hint {
  position: absolute;
  bottom: 44px;
  left: 48px;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--color-text-muted);
  font-weight: 500;
}

.scroll-bar {
  width: 48px;
  height: 2px;
  background: var(--color-border);
  position: relative;
  overflow: hidden;
  border-radius: 1px;
}

.scroll-bar span {
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: var(--color-accent);
  border-radius: 1px;
  animation: scrollHint 2.4s ease-in-out infinite;
}

@keyframes scrollHint {
  0% { left: -50%; }
  60% { left: 60%; }
  100% { left: 100%; }
}

/* ---- About ---- */
.about {
  background: var(--color-white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 100px;
  align-items: start;
}

.about-lead {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 500;
  line-height: 1.35;
  color: var(--color-text);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.about-text p {
  color: var(--color-text-soft);
  margin-bottom: 24px;
  font-size: 15.5px;
  line-height: 1.75;
  letter-spacing: -0.005em;
}

.about-capabilities {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 36px;
}

.capability-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  font-size: 13px;
  font-weight: 500;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text-soft);
  transition: all var(--t-base) var(--ease);
  letter-spacing: -0.01em;
}

.capability-tag:hover {
  border-color: var(--color-accent);
  background: var(--color-white);
  color: var(--color-text);
  transform: translateY(-1px);
}

.tag-dot {
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

.visual-frame {
  position: relative;
  overflow: hidden;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: all var(--t-slow) var(--ease);
}

.visual-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.5s var(--ease);
}

.visual-frame:hover img {
  transform: scale(1.05);
}

.about-visual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 16px;
}

.about-visual-card {
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  overflow: hidden;
  transition: all var(--t-base) var(--ease);
}

.about-visual-card:first-child {
  grid-column: 1 / 3;
}

.about-visual-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.06);
}

.about-visual-media {
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--color-bg-alt);
}

.about-visual-card:first-child .about-visual-media {
  aspect-ratio: 16 / 9;
}

.about-visual-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.4s var(--ease);
}

.about-visual-card:hover img {
  transform: scale(1.04);
}

.about-visual-caption {
  padding: 14px 18px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-text);
  border-top: 1px solid var(--color-border);
  font-family: var(--font-display);
}

/* ---- Partners ---- */
.partners {
  margin-top: 80px;
  padding: 56px 48px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  text-align: center;
}

.partners-header {
  margin-bottom: 36px;
}

.partners-label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 10px;
}

.partners-subtitle {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin: 0;
}

.partners-logo {
  max-width: 900px;
  margin: 0 auto;
}

.partners-logo img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.3s ease;
}

.partners-logo img:hover {
  transform: scale(1.02);
}

/* ---- Processes ---- */
.processes {
  background: var(--color-bg);
}

.process-card {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 72px;
  align-items: center;
  padding: 100px 0;
  border-top: 1px solid var(--color-border);
}

.process-card:first-of-type {
  border-top: none;
  padding-top: 0;
}

.process-card.reverse {
  grid-template-columns: 1fr 1.15fr;
}

.process-card.reverse .process-media {
  order: 2;
}

.process-card.reverse .process-info {
  order: 1;
}

.process-media {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 14px;
}

.process-main-media {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  position: relative;
}

.process-main-media::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-accent);
  z-index: 2;
  opacity: 0;
  transition: opacity var(--t-base) var(--ease);
}

.process-card:hover .process-main-media::after {
  opacity: 1;
}

.process-main-media img,
.process-main-media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.4s var(--ease);
}

.process-card:hover .process-main-media img,
.process-card:hover .process-main-media video {
  transform: scale(1.04);
}

.process-sub-media {
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  align-self: end;
  margin-bottom: 0;
  transition: transform var(--t-base) var(--ease);
}

.process-sub-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.4s var(--ease);
}

.process-card:hover .process-sub-media img {
  transform: scale(1.06);
}

.process-header {
  margin-bottom: 24px;
}

.process-code {
  display: inline-block;
  padding: 7px 14px;
  background: var(--color-text);
  color: var(--color-accent);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  margin-bottom: 20px;
}

.process-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 3.8vw, 48px);
  line-height: 1;
  letter-spacing: -0.03em;
}

.process-desc {
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text-soft);
  margin-bottom: 36px;
  max-width: 520px;
  letter-spacing: -0.005em;
}

.spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px 36px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.spec-item {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.spec-item .spec-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  font-weight: 500;
}

.spec-item .spec-value {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.spec-item .spec-value.mono {
  font-family: var(--font-mono);
  font-weight: 400;
  color: var(--color-text);
  font-size: 14px;
}

/* ---- Factory Tour ---- */
.factory {
  background: var(--color-white);
}

.factory-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.factory-card {
  border: 1px solid var(--color-border);
  overflow: hidden;
  background: var(--color-bg);
  transition: all var(--t-base) var(--ease);
}

.factory-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.08);
}

.factory-card-media {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-bg-alt);
}

.factory-card-media video,
.factory-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.1s var(--ease);
}

.factory-card:hover video,
.factory-card:hover img {
  transform: scale(1.04);
}

.factory-card-body {
  padding: 20px 24px;
  border-top: 1px solid var(--color-border);
}

.factory-card-body h4 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.015em;
  color: var(--color-text);
}

/* ---- Products ---- */
.products {
  background: var(--color-bg);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 290px;
  gap: 18px;
}

.product-item {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  cursor: pointer;
  transition: all var(--t-base) var(--ease);
}

.product-item:hover {
  border-color: var(--color-accent);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.07);
  transform: translateY(-3px);
}

.product-item.featured {
  grid-column: span 2;
  grid-row: span 2;
}

.product-item.featured-row {
  grid-column: span 2;
}

.product-item img,
.product-item video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.3s var(--ease);
}

.product-item:hover img,
.product-item:hover video {
  transform: scale(1.07);
}

.product-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
  background: linear-gradient(
    180deg,
    transparent 35%,
    rgba(15, 15, 15, 0.88) 100%
  );
  color: var(--color-white);
  opacity: 0;
  transition: opacity var(--t-base) var(--ease);
}

.product-item:hover .product-overlay {
  opacity: 1;
}

.product-cat {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--color-accent);
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-weight: 500;
}

.product-overlay h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 4px;
  letter-spacing: -0.02em;
}

.product-overlay p {
  font-size: 13.5px;
  opacity: 0.7;
  letter-spacing: -0.005em;
}

/* ---- Surface Finishing ---- */
.finishing {
  background: var(--color-white);
}

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

.finish-card {
  padding: 36px 30px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: all var(--t-base) var(--ease);
  position: relative;
  overflow: hidden;
}

.finish-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-base) var(--ease);
}

.finish-card:hover::before {
  transform: scaleX(1);
}

.finish-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-5px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.06);
}

.finish-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  margin-bottom: 28px;
  transition: color var(--t-base) var(--ease);
}

.finish-icon svg {
  width: 36px;
  height: 36px;
  stroke-width: 1.4;
}

.finish-card:hover .finish-icon {
  color: var(--color-accent);
  filter: drop-shadow(0 0 8px rgba(255, 225, 0, 0.4));
}

.finish-content h4 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.finish-content p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-soft);
  margin-bottom: 24px;
  letter-spacing: -0.005em;
}

.finish-sample {
  height: 36px;
  border: 1px solid var(--color-border);
  transition: border-color var(--t-base) var(--ease);
}

.finish-card:hover .finish-sample {
  border-color: var(--color-accent);
}

/* ---- Industries ---- */
.industries {
  background: var(--color-bg-dark);
  color: var(--color-white);
}

.industries-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.industry-card {
  padding: 56px 48px;
  background: var(--color-bg-dark);
  transition: all var(--t-base) var(--ease);
  position: relative;
  overflow: hidden;
}

.industry-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--color-accent);
  transition: width var(--t-base) var(--ease);
}

.industry-card:hover::before {
  width: 100%;
}

.industry-card:hover {
  background: var(--color-bg-dark-2);
}

.industry-icon {
  width: 52px;
  height: 52px;
  margin-bottom: 32px;
  color: var(--color-accent);
  transition: all var(--t-base) var(--ease);
}

.industry-card:hover .industry-icon {
  transform: scale(1.1);
  filter: drop-shadow(0 0 12px rgba(255, 225, 0, 0.4));
}

.industry-icon svg {
  width: 100%;
  height: 100%;
  stroke-width: 1.5;
}

.industry-card h4 {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 600;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

.industry-card p {
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: -0.005em;
}

/* ---- Quality Control ---- */
.quality {
  background: var(--color-bg);
}

.quality-layout {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 24px;
}

.quality-main {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}

.quality-main video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 420px;
  transition: transform 1.3s var(--ease);
}

.quality-main:hover video {
  transform: scale(1.03);
}

.quality-main-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px 32px;
  background: linear-gradient(transparent, rgba(26, 26, 26, 0.9));
  color: var(--color-white);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.quality-code {
  padding: 5px 12px;
  background: var(--color-accent);
  color: var(--color-text);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  font-family: var(--font-mono);
  flex-shrink: 0;
}

.quality-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.quality-item {
  flex: 1;
  display: flex;
  gap: 22px;
  padding: 22px;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  transition: all var(--t-base) var(--ease);
}

.quality-item:hover {
  border-color: var(--color-accent);
  transform: translateX(5px);
  box-shadow: -4px 8px 24px rgba(0, 0, 0, 0.04);
}

.quality-video {
  width: 140px;
  min-width: 140px;
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.quality-video video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.1s var(--ease);
}

.quality-item:hover .quality-video video {
  transform: scale(1.06);
}

.quality-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
}

.quality-info .quality-code {
  display: inline-block;
  width: fit-content;
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  padding: 3px 8px;
  font-size: 10px;
  transition: all var(--t-base) var(--ease);
}

.quality-item:hover .quality-info .quality-code {
  border-color: var(--color-accent);
  color: var(--color-text);
  background: var(--color-accent);
}

.quality-info h4 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.quality-info p {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--color-text-soft);
  letter-spacing: -0.005em;
}

/* ---- Certifications ---- */
.certifications {
  margin-top: 80px;
  padding: 56px 48px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
}

.certifications-header {
  text-align: center;
  margin-bottom: 40px;
}

.certifications-label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.certifications-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--color-text);
}

.certifications-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}

.cert-card {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cert-image {
  position: relative;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
  transition: box-shadow var(--t-base) var(--ease), transform var(--t-base) var(--ease);
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cert-image:hover {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.cert-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 16px;
}

.cert-caption {
  text-align: center;
  font-size: 13px;
  color: var(--color-text-secondary);
  letter-spacing: -0.005em;
}

/* ---- Advantages / Stats ---- */
.advantages {
  background: var(--color-white);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
}

.stat-card {
  padding: 64px 48px;
  background: var(--color-white);
  text-align: center;
  transition: all var(--t-base) var(--ease);
  position: relative;
  overflow: hidden;
}

.stat-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 3px;
  background: var(--color-accent);
  opacity: 0;
  transition: all var(--t-base) var(--ease);
}

.stat-card:hover::after {
  opacity: 1;
  width: 80px;
}

.stat-card:hover {
  background: var(--color-bg);
}

.stat-card.highlight {
  background: var(--color-text);
  color: var(--color-white);
}

.stat-card.highlight:hover {
  background: #0a0a0a;
}

.stat-card.highlight .stat-label {
  color: var(--color-accent);
}

.stat-card.highlight .stat-sub {
  color: rgba(255, 255, 255, 0.5);
}

.stat-card.highlight::after {
  background: var(--color-accent);
  opacity: 1;
  width: 80px;
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 72px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--color-text);
  margin-bottom: 18px;
}

.stat-card.highlight .stat-number {
  color: var(--color-accent);
}

.stat-number small {
  font-size: 22px;
  font-weight: 400;
  display: block;
  margin-top: 8px;
  letter-spacing: 0.06em;
  line-height: 1.2;
}

.stat-suffix {
  font-family: var(--font-mono);
  font-size: 36px;
  color: var(--color-accent);
  margin-left: 2px;
}

.stat-card.highlight .stat-suffix {
  color: var(--color-accent);
}

.stat-label {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 6px;
  letter-spacing: -0.015em;
}

.stat-sub {
  font-size: 13.5px;
  color: var(--color-text-muted);
  letter-spacing: -0.005em;
}

/* ---- CTA ---- */
.cta {
  background: var(--color-bg);
}

.cta-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  padding: 80px;
  background: var(--color-bg-dark);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-accent);
}

.cta-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--color-accent);
  margin-bottom: 24px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
  font-family: var(--font-mono);
}

.cta-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(34px, 4.2vw, 56px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  margin-bottom: 22px;
  text-wrap: balance;
}

.cta-desc {
  font-size: 16px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 40px;
  letter-spacing: -0.005em;
}

.cta-features {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.cta-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14.5px;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: -0.005em;
}

.cta-feature svg {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.cta-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-field label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.45);
  font-family: var(--font-mono);
}

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 15px 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 14.5px;
  transition: border-color var(--t-fast) var(--ease),
              background var(--t-fast) var(--ease);
  resize: vertical;
  letter-spacing: -0.01em;
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  background: rgba(255, 255, 255, 0.07);
  box-shadow: 0 0 0 3px rgba(255, 225, 0, 0.1);
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: rgba(255, 255, 255, 0.25);
}

.cta-form .btn-primary {
  margin-top: 4px;
  padding: 17px 28px;
  font-weight: 600;
  font-size: 15px;
}

.cta-form .btn-primary:hover {
  filter: brightness(0.92);
  background: var(--color-accent);
}

.btn .btn-loading {
  display: none;
}

.btn.is-loading .btn-text,
.btn.is-loading .btn-icon {
  display: none;
}

.btn.is-loading .btn-loading {
  display: inline;
}

.btn.is-loading {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none !important;
}

.form-status {
  display: none;
  padding: 16px 44px 16px 20px !important;
  border-radius: 10px !important;
  font-size: 15px !important;
  line-height: 1.55 !important;
  margin-bottom: 16px !important;
  border: 1px solid transparent !important;
  position: relative !important;
  font-weight: 500 !important;
  animation: formStatusIn 0.35s ease-out !important;
  z-index: 10 !important;
}

@keyframes formStatusIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.form-status .form-status-text {
  display: block;
  padding-left: 30px;
  position: relative;
}

.form-status .form-status-text::before {
  content: '';
  position: absolute;
  left: 0;
  top: 2px;
  width: 20px;
  height: 20px;
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
}

.form-status .form-status-close {
  position: absolute !important;
  top: 50% !important;
  right: 10px !important;
  transform: translateY(-50%) !important;
  background: none !important;
  border: none !important;
  font-size: 20px !important;
  font-weight: 700 !important;
  cursor: pointer !important;
  padding: 2px 8px !important;
  line-height: 1 !important;
  border-radius: 4px !important;
  transition: opacity 0.2s !important;
  opacity: 0.6 !important;
  width: auto !important;
  height: auto !important;
  margin: 0 !important;
  box-shadow: none !important;
  text-transform: none !important;
  letter-spacing: normal !important;
}

.form-status .form-status-close:hover {
  opacity: 1 !important;
  background: rgba(0, 0, 0, 0.05) !important;
}

/* ---- Success state ---- */
.form-status.form-success {
  display: block !important;
  background: #d4edda !important;
  border-color: #28a745 !important;
  color: #155724 !important;
}

.form-status.form-success .form-status-text::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23155724' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
}

.form-status.form-success .form-status-close {
  color: #155724 !important;
}

/* ---- Error state ---- */
.form-status.form-error {
  display: block !important;
  background: #f8d7da !important;
  border-color: #dc3545 !important;
  color: #721c24 !important;
}

.form-status.form-error .form-status-text::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23721c24' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cline x1='12' y1='8' x2='12' y2='12'/%3E%3Cline x1='12' y1='16' x2='12.01' y2='16'/%3E%3C/svg%3E");
}

.form-status.form-error .form-status-close {
  color: #721c24 !important;
}

/* ---- Footer ---- */
.footer {
  background: var(--color-bg-dark);
  color: var(--color-white);
  padding: 96px 0 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 56px;
  padding-bottom: 64px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-brand {
  max-width: 360px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 11px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -0.025em;
  margin-bottom: 22px;
}

.footer-logo .nav-logo-mark {
  background: var(--color-accent);
  color: var(--color-text);
}

.footer-brand p {
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 24px;
  letter-spacing: -0.005em;
}

.footer-cert {
  display: flex;
  gap: 12px;
  font-size: 11px;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  font-weight: 500;
}

.footer-col h5 {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--color-accent);
  margin-bottom: 24px;
  font-family: var(--font-mono);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-col li {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.55;
  letter-spacing: -0.005em;
}

.footer-col a:hover {
  color: var(--color-accent);
}

.footer-contact-address {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.footer-contact-address svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-accent);
}

.footer-contact-address span {
  flex: 1;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.28);
  letter-spacing: -0.005em;
}

/* ---- Reveal Animations ---- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.85s var(--ease),
              transform 0.85s var(--ease);
  will-change: opacity, transform;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Image fade-in on load */
img, video {
  opacity: 0;
  transition: opacity 0.8s var(--ease);
}

img.loaded, video.loaded {
  opacity: 1;
}

/* Keep hero content visible immediately */
.hero-content img,
.hero-content video,
.nav img,
.nav video {
  opacity: 1;
}

/* ---- Responsive ---- */
@media (max-width: 1200px) {
  :root {
    --section-py: 120px;
  }

  .container,
  .container-wide,
  .nav-inner,
  .hero-content {
    padding-left: 32px;
    padding-right: 32px;
  }

  .product-grid {
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 250px;
  }

  .product-item.featured {
    grid-column: span 2;
  }

  .finishing-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat-card:nth-child(3) {
    border-top: 1px solid var(--color-border);
  }

  .about-grid {
    gap: 60px;
  }

  .cta-box {
    padding: 56px;
  }
}

@media (max-width: 900px) {
  :root {
    --section-py: 96px;
  }

  .container,
  .container-wide,
  .nav-inner,
  .hero-content {
    padding-left: 24px;
    padding-right: 24px;
  }

  /* Mobile nav: more compact */
  .nav {
    padding: 14px 0;
  }

  .nav.scrolled {
    padding: 10px 0;
  }

  .nav-logo {
    font-size: 12px;
    gap: 9px;
  }

  .nav-logo-mark {
    width: 34px;
    height: 34px;
    font-size: 13px;
  }

  /* Push hero content below fixed nav */
  .hero-content {
    padding-top: 80px;
  }

  /* Long company name: hide text on tablets to save space */
  .nav-logo-text {
    display: none;
  }

  .nav-links,
  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .about-grid,
  .process-card,
  .process-card.reverse,
  .cta-box,
  .quality-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  /* On tablet, about image grid stays 2-col for compact mosaic */
  .about-visual-grid {
    gap: 12px;
  }

  .partners {
    margin-top: 48px;
    padding: 36px 24px;
  }

  .certifications {
    margin-top: 48px;
    padding: 36px 24px;
  }

  .certifications-header {
    margin-bottom: 28px;
  }

  .certifications-title {
    font-size: 18px;
  }

  .certifications-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .partners-header {
    margin-bottom: 24px;
  }

  .partners-subtitle {
    font-size: 14px;
  }

  .partners-logo {
    max-width: 100%;
  }

  .process-card.reverse .process-media {
    order: initial;
  }
  .process-card.reverse .process-info {
    order: initial;
  }

  .factory-grid {
    grid-template-columns: 1fr;
  }

  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 230px;
    gap: 14px;
  }

  .product-item.featured,
  .product-item.featured-row {
    grid-column: span 2;
    grid-row: span 1;
  }

  .industries-grid {
    grid-template-columns: 1fr 1fr;
  }

  .industry-card {
    padding: 40px 32px;
  }

  .quality-list {
    flex-direction: column;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .cta-box {
    padding: 48px 32px;
    gap: 48px;
  }

  .hero-scroll-hint {
    left: 24px;
  }

  .hero-stats {
    gap: 36px;
  }

  .slider-btn {
    width: 42px;
    height: 42px;
  }
  .slider-btn svg {
    width: 18px;
    height: 18px;
  }
  .slider-prev { left: 14px; }
  .slider-next { right: 14px; }

  .slider-dots {
    bottom: 32px;
    gap: 10px;
  }

  .slider-dot {
    width: 22px;
    height: 20px;
  }

  .slider-dot span {
    width: 20px;
  }

  .slider-dot.active span {
    width: 28px;
  }

  .hero-slide-label {
    right: 24px;
    bottom: 84px;
    font-size: 10px;
    padding: 8px 14px;
    max-width: 65%;
  }

  .hero {
    min-height: 680px;
  }

  /* Mobile nav */
  .nav-links.mobile-open {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    background: var(--color-white);
    z-index: 99;
    padding: 80px 24px;
  }

  .nav-links.mobile-open a {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 600;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
  .nav-toggle {
    z-index: 100;
  }
}

@media (max-width: 600px) {
  :root {
    --section-py: 72px;
  }

  .section-header {
    margin-bottom: 52px;
  }

  .hero {
    min-height: 660px;
  }

  /* Small mobile: show full company name at compact size */
  .nav-logo-text {
    display: inline;
    font-size: 10.5px;
    letter-spacing: -0.025em;
    line-height: 1.15;
    max-width: 42vw;
    white-space: normal;
  }

  .nav-logo {
    gap: 7px;
    font-size: 10.5px;
  }

  .nav-logo-mark {
    width: 30px;
    height: 30px;
    font-size: 11px;
    flex-shrink: 0;
  }

  .nav {
    padding: 10px 0;
  }

  .nav.scrolled {
    padding: 7px 0;
  }

  .nav-right {
    gap: 12px;
  }

  .hero-content {
    padding-top: 72px;
  }

  .hero-eyebrow {
    margin-bottom: 24px;
    font-size: 11px;
  }

  .hero-title {
    font-size: 30px;
  }

  .hero-subtitle {
    font-size: 15px;
    margin-bottom: 32px;
  }

  .hero-actions {
    margin-bottom: 40px;
    gap: 12px;
  }

  .hero-actions .btn {
    padding: 13px 22px;
    font-size: 14px;
  }

  .hero-stats {
    flex-direction: column;
    gap: 22px;
    padding-top: 28px;
  }

  .process-media {
    grid-template-columns: 1fr;
  }

  .process-sub-media {
    display: none;
  }

  .spec-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .product-grid {
    grid-template-columns: 1fr;
    grid-auto-rows: 280px;
  }

  .product-item.featured,
  .product-item.featured-row {
    grid-column: span 1;
  }

  .finishing-grid {
    grid-template-columns: 1fr;
  }

  .industries-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .stat-card {
    padding: 48px 32px;
  }

  .stat-number {
    font-size: 56px;
  }

  .form-grid-2 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .quality-item {
    flex-direction: column;
  }

  .quality-video {
    width: 100%;
    min-width: 100%;
  }

  .factory-card-body {
    padding: 16px 20px;
  }

  .factory-card-body h4 {
    font-size: 16px;
  }

  .finish-card {
    padding: 32px 26px;
  }

  .stat-number {
    font-size: 56px;
  }
}

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

  .reveal {
    opacity: 1;
    transform: none;
  }
}