/* ============================================================
   PREMIUM PRINT & PACK MANUFACTURER - Custom Styles
   Design: European/American High-End Minimalist
   ============================================================ */

/* --- CSS Variables / Design Tokens --- */
:root {
  --color-primary: #0F172A;
  --color-gold: #D4AF37;
  --color-blue: #2563EB;
  --color-slate: #1E293B;
  --color-muted: #64748B;
  --color-light: #F8FAFC;
  --font-heading: 'Inter', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --transition-fast: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 260ms cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-card: 0 1px 3px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.04);
  --shadow-card-hover: 0 2px 8px rgba(0,0,0,0.08), 0 8px 32px rgba(0,0,0,0.06);
  --shadow-nav: 0 1px 0 rgba(0,0,0,0.06);
}

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

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-slate);
  background-color: #FFFFFF;
  overflow-x: hidden;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--color-primary);
  margin: 0;
}

h1 { font-size: clamp(2.25rem, 5vw, 3rem); line-height: 1.15; }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); line-height: 1.2; }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); line-height: 1.3; }

p {
  margin: 0;
  color: var(--color-muted);
}

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

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

/* --- Container --- */
.container-main {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

@media (min-width: 768px) {
  .container-main {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
  transition: all var(--transition-base);
}

.navbar.scrolled {
  box-shadow: var(--shadow-nav);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 768px) {
  .navbar-inner {
    padding: 0 2rem;
  }
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.3px;
  white-space: nowrap;
}

.nav-logo span {
  color: var(--color-gold);
}

.nav-links {
  display: none;
  align-items: center;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

@media (min-width: 1024px) {
  .nav-links {
    display: flex;
  }
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-muted);
  letter-spacing: 0.2px;
  position: relative;
  padding: 4px 0;
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-gold);
  transition: width var(--transition-base);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
}

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

/* Mobile Menu Toggle */
.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

@media (min-width: 1024px) {
  .menu-toggle {
    display: none;
  }
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-primary);
  position: relative;
  transition: background var(--transition-fast);
}

.menu-toggle span::before,
.menu-toggle span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  transition: transform var(--transition-base);
}

.menu-toggle span::before { top: -6px; }
.menu-toggle span::after { top: 6px; }

.menu-toggle.active span { background: transparent; }
.menu-toggle.active span::before { transform: translateY(6px) rotate(45deg); }
.menu-toggle.active span::after { transform: translateY(-6px) rotate(-45deg); }

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: #FFFFFF;
  z-index: 999;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transform: translateX(100%);
  transition: transform var(--transition-base);
}

.mobile-menu.open {
  transform: translateX(0);
}

.mobile-menu a {
  display: block;
  padding: 0.875rem 0;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-primary);
  border-bottom: 1px solid rgba(0,0,0,0.05);
  transition: color var(--transition-fast);
}

.mobile-menu a:hover {
  color: var(--color-gold);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.3px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  border-radius: 0;
}

.btn-primary {
  background: var(--color-primary);
  color: #FFFFFF;
}

.btn-primary:hover {
  background: #1a2540;
  transform: translateY(-1px);
}

.btn-gold {
  background: var(--color-gold);
  color: var(--color-primary);
}

.btn-gold:hover {
  background: #c4a02f;
  transform: translateY(-1px);
}

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

.btn-outline:hover {
  background: var(--color-primary);
  color: #FFFFFF;
}

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

.btn-outline-gold:hover {
  background: var(--color-gold);
  color: var(--color-primary);
}

.btn-white {
  background: #FFFFFF;
  color: var(--color-primary);
}

.btn-white:hover {
  background: var(--color-light);
}

.btn-lg {
  padding: 1rem 2.25rem;
  font-size: 15px;
}

/* --- Section Spacing --- */
.section {
  padding: 3rem 0;
}

@media (min-width: 768px) {
  .section {
    padding: 5rem 0;
  }
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .section-header {
    margin-bottom: 4rem;
  }
}

.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 0.75rem;
}

.section-title {
  margin-bottom: 1rem;
}

.section-desc {
  max-width: 560px;
  margin: 0 auto;
  font-size: 16px;
  color: var(--color-muted);
  line-height: 1.6;
}

/* Gold divider */
.gold-divider {
  width: 48px;
  height: 3px;
  background: var(--color-gold);
  margin: 0 auto 1.25rem;
}

/* --- Hero / Banner --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-primary);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 70% 20%, rgba(212,175,55,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 30% 80%, rgba(37,99,235,0.06) 0%, transparent 50%);
}

.hero-bg-texture {
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255,255,255,0.5) 2px, rgba(255,255,255,0.5) 4px),
    repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(255,255,255,0.5) 2px, rgba(255,255,255,0.5) 4px);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 6rem 1rem 4rem;
}

@media (min-width: 768px) {
  .hero-content {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

@media (min-width: 1024px) {
  .hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
  }
}

.hero-text {
  max-width: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 1rem;
  background: rgba(212,175,55,0.1);
  border: 1px solid rgba(212,175,55,0.2);
  color: var(--color-gold);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(2.5rem, 5.5vw, 3.75rem);
  color: #FFFFFF;
  line-height: 1.1;
  margin-bottom: 1.25rem;
}

.hero-title span {
  color: var(--color-gold);
}

.hero-desc {
  font-size: 17px;
  color: rgba(255,255,255,0.65);
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 480px;
}

.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-visual {
  display: none;
}

@media (min-width: 1024px) {
  .hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
  }
}

.hero-visual-inner {
  position: relative;
  width: 100%;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, rgba(212,175,55,0.1), rgba(37,99,235,0.08));
  border: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-visual-placeholder {
  text-align: center;
  padding: 2rem;
}

.hero-visual-placeholder .icon-box {
  width: 80px;
  height: 80px;
  margin: 0 auto 1rem;
  border: 2px solid rgba(212,175,55,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gold);
  font-size: 2rem;
}

.hero-visual-placeholder p {
  color: rgba(255,255,255,0.4);
  font-size: 13px;
  letter-spacing: 1px;
}

/* Hero stats row */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.hero-stat-value {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: -0.5px;
}

.hero-stat-label {
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  margin-top: 0.25rem;
}

/* --- Cards --- */
.card {
  background: #FFFFFF;
  border: 1px solid rgba(0,0,0,0.06);
  box-shadow: var(--shadow-card);
  transition: all var(--transition-base);
}

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

.card-image {
  aspect-ratio: 4/3;
  background: var(--color-light);
  overflow: hidden;
  position: relative;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

.card-image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-light), #eef1f5);
  color: var(--color-muted);
  font-size: 2.5rem;
}

.card-body {
  padding: 1.5rem;
}

@media (min-width: 768px) {
  .card-body {
    padding: 1.75rem;
  }
}

.card-tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 0.5rem;
}

.card-title {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.card-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  margin-top: 1rem;
  transition: color var(--transition-fast);
}

.card-link:hover {
  color: var(--color-gold);
}

.card-link svg {
  transition: transform var(--transition-fast);
}

.card-link:hover svg {
  transform: translateX(3px);
}

/* --- Feature / Advantage Cards --- */
.feature-card {
  text-align: center;
  padding: 2rem 1.5rem;
  background: #FFFFFF;
  border: 1px solid rgba(0,0,0,0.05);
  transition: all var(--transition-base);
}

.feature-card:hover {
  border-color: var(--color-gold);
}

.feature-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  background: rgba(212,175,55,0.08);
  color: var(--color-gold);
}

.feature-card h3 {
  font-size: 1.0625rem;
  margin-bottom: 0.625rem;
}

.feature-card p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

/* --- About Block --- */
.about-grid {
  display: grid;
  gap: 3rem;
}

@media (min-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

.about-image {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--color-light), #e8ecf1);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-image-inner {
  text-align: center;
  padding: 2rem;
}

.about-image-inner .fab-icon {
  font-size: 4rem;
  color: var(--color-gold);
  margin-bottom: 1rem;
  opacity: 0.6;
}

.about-image-inner p {
  font-size: 13px;
  color: var(--color-muted);
}

.about-text h2 {
  margin-bottom: 1.25rem;
}

.about-text .lead {
  font-size: 17px;
  color: var(--color-slate);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.about-text p {
  margin-bottom: 1rem;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(0,0,0,0.06);
}

.about-stat-num {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-gold);
}

.about-stat-label {
  font-size: 12px;
  color: var(--color-muted);
  margin-top: 0.25rem;
}

/* --- Product Grid --- */
.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* --- Cases Grid --- */
.cases-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .cases-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.case-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.case-card .card-image {
  aspect-ratio: 1/1;
}

.case-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15,23,42,0.85) 0%, rgba(15,23,42,0.2) 50%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.case-card:hover .case-overlay {
  opacity: 1;
}

.case-overlay h3 {
  color: #FFFFFF;
  font-size: 1.125rem;
  margin-bottom: 0.25rem;
}

.case-overlay p {
  color: rgba(255,255,255,0.7);
  font-size: 13px;
}

/* --- Quality Section --- */
.quality-list {
  display: grid;
  gap: 1rem;
}

.quality-item {
  display: flex;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--color-light);
  border-left: 3px solid var(--color-gold);
  transition: all var(--transition-fast);
}

.quality-item:hover {
  background: #FFFFFF;
  box-shadow: var(--shadow-card);
}

.quality-item-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(212,175,55,0.1);
  color: var(--color-gold);
  font-size: 1.25rem;
}

.quality-item h3 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.quality-item p {
  font-size: 14px;
  color: var(--color-muted);
}

/* --- Form --- */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
  letter-spacing: 0.3px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--color-primary);
  background: #FFFFFF;
  border: 1px solid rgba(0,0,0,0.12);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  border-radius: 0;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(212,175,55,0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 140px;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M6 8L1 3h10z' fill='%2364748B'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

/* --- Contact Info --- */
.contact-info-card {
  padding: 2rem;
  background: var(--color-primary);
  color: #FFFFFF;
}

.contact-info-card h3 {
  color: #FFFFFF;
  margin-bottom: 1.5rem;
}

.contact-info-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.contact-info-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(212,175,55,0.15);
  color: var(--color-gold);
  font-size: 1.125rem;
}

.contact-info-text h4 {
  color: rgba(255,255,255,0.7);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.contact-info-text p {
  color: #FFFFFF;
  font-size: 15px;
}

/* --- Footer --- */
.footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.6);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer-brand h3 {
  color: #FFFFFF;
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.footer-brand span {
  color: var(--color-gold);
}

.footer-brand p {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  line-height: 1.7;
  max-width: 320px;
}

.footer-col h4 {
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-col li {
  margin-bottom: 0.625rem;
}

.footer-col a {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
  font-size: 13px;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer-bottom p {
  color: rgba(255,255,255,0.35);
}

/* --- Floating Customer Service --- */
.float-service {
  position: fixed;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 900;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.float-service-item {
  position: relative;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: #FFFFFF;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 1.125rem;
}

.float-service-item:hover {
  background: var(--color-gold);
  color: var(--color-primary);
}

.float-service-tooltip {
  position: absolute;
  right: 60px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--color-primary);
  color: #FFFFFF;
  padding: 0.5rem 0.875rem;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  pointer-events: none;
}

.float-service-item:hover .float-service-tooltip {
  opacity: 1;
  visibility: visible;
}

.float-service-tooltip::after {
  content: '';
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  border: 6px solid transparent;
  border-left-color: var(--color-primary);
}

.float-qr-popup {
  position: absolute;
  right: 60px;
  bottom: 0;
  width: 160px;
  padding: 1rem;
  background: #FFFFFF;
  box-shadow: var(--shadow-card-hover);
  text-align: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  pointer-events: none;
}

.float-service-item.wechat:hover .float-qr-popup {
  opacity: 1;
  visibility: visible;
}

.float-qr-popup .qr-placeholder {
  width: 120px;
  height: 120px;
  margin: 0 auto;
  background: var(--color-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--color-muted);
}

.float-qr-popup p {
  font-size: 11px;
  color: var(--color-muted);
  margin-top: 0.5rem;
}

/* --- Page Header --- */
.page-header {
  padding: 8rem 0 3rem;
  background: var(--color-primary);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(212,175,55,0.08) 0%, transparent 60%);
}

@media (min-width: 768px) {
  .page-header {
    padding: 9rem 0 4rem;
  }
}

.page-header h1 {
  color: #FFFFFF;
  position: relative;
  z-index: 1;
  margin-bottom: 0.75rem;
}

.page-header .breadcrumb {
  position: relative;
  z-index: 1;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}

.page-header .breadcrumb a {
  color: var(--color-gold);
  transition: color var(--transition-fast);
}

.page-header .breadcrumb a:hover {
  color: #c4a02f;
}

/* --- News Card --- */
.news-card {
  background: #FFFFFF;
  border: 1px solid rgba(0,0,0,0.06);
  transition: all var(--transition-base);
}

.news-card:hover {
  box-shadow: var(--shadow-card-hover);
}

.news-card-body {
  padding: 1.5rem;
}

.news-card-date {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--color-gold);
  text-transform: uppercase;
}

.news-card h3 {
  margin: 0.5rem 0;
  font-size: 1.125rem;
}

.news-card p {
  font-size: 14px;
}

/* --- Detail Content --- */
.detail-content {
  max-width: 800px;
  margin: 0 auto;
}

.detail-content h2 {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.detail-content h3 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.detail-content p {
  margin-bottom: 1.25rem;
  line-height: 1.8;
}

.detail-content ul {
  margin-bottom: 1.25rem;
  padding-left: 1.25rem;
  color: var(--color-muted);
}

.detail-content li {
  margin-bottom: 0.5rem;
  line-height: 1.7;
}

.detail-image {
  aspect-ratio: 16/9;
  background: var(--color-light);
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.detail-image-placeholder {
  font-size: 4rem;
  color: var(--color-muted);
  opacity: 0.5;
}

/* --- Spec Table --- */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
}

.spec-table th,
.spec-table td {
  padding: 0.875rem 1rem;
  text-align: left;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  font-size: 14px;
}

.spec-table th {
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-light);
  width: 35%;
}

.spec-table td {
  color: var(--color-muted);
}

/* --- Certification Badges --- */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .cert-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.cert-item {
  text-align: center;
  padding: 2rem 1rem;
  background: #FFFFFF;
  border: 1px solid rgba(0,0,0,0.06);
  transition: all var(--transition-base);
}

.cert-item:hover {
  border-color: var(--color-gold);
}

.cert-icon {
  font-size: 2.5rem;
  color: var(--color-gold);
  margin-bottom: 0.75rem;
}

.cert-item h3 {
  font-size: 0.9375rem;
  margin-bottom: 0.25rem;
}

.cert-item p {
  font-size: 12px;
  color: var(--color-muted);
}

/* --- Related Products --- */
.related-title {
  font-size: 1.25rem;
  margin: 3rem 0 1.5rem;
}

/* --- Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeInUp 260ms cubic-bezier(0.4, 0, 0.2, 1) both;
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 260ms cubic-bezier(0.4, 0, 0.2, 1),
              transform 260ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* --- Utility --- */
.text-gold { color: var(--color-gold); }
.text-muted { color: var(--color-muted); }
.bg-primary { background: var(--color-primary); }
.bg-light { background: var(--color-light); }
.bg-gold { background: var(--color-gold); }

.gap-section { margin-top: 3rem; }
@media (min-width: 768px) { .gap-section { margin-top: 5rem; } }

/* --- Page-specific: Quality Timeline --- */
.quality-process {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .quality-process {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .quality-process {
    grid-template-columns: repeat(4, 1fr);
  }
}

.process-step {
  text-align: center;
  position: relative;
}

.process-step-num {
  width: 48px;
  height: 48px;
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--color-gold);
  color: var(--color-gold);
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
}

.process-step h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.process-step p {
  font-size: 13px;
}

/* --- Equipment List --- */
.equipment-list {
  display: grid;
  gap: 1rem;
}

.equipment-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: #FFFFFF;
  border: 1px solid rgba(0,0,0,0.06);
  transition: all var(--transition-fast);
}

.equipment-item:hover {
  border-color: var(--color-gold);
}

.equipment-item .eq-icon {
  font-size: 1.5rem;
  color: var(--color-gold);
  flex-shrink: 0;
}

.equipment-item h4 {
  font-size: 0.9375rem;
  margin-bottom: 0.125rem;
}

.equipment-item p {
  font-size: 13px;
}

/* --- Inquiry Page --- */
.inquiry-layout {
  display: grid;
  gap: 2.5rem;
}

@media (min-width: 1024px) {
  .inquiry-layout {
    grid-template-columns: 1fr 1fr;
  }
}

.inquiry-info {
  padding: 2rem;
  background: var(--color-light);
}

.inquiry-info h2 {
  margin-bottom: 1rem;
}

.inquiry-info p {
  margin-bottom: 1.5rem;
}

.inquiry-benefits {
  list-style: none;
  padding: 0;
  margin: 0;
}

.inquiry-benefits li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
  font-size: 15px;
  color: var(--color-slate);
}

.inquiry-benefits .check-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(212,175,55,0.15);
  color: var(--color-gold);
  font-size: 0.75rem;
}

/* --- Full-width CTA Banner --- */
.cta-banner {
  background: var(--color-primary);
  padding: 4rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(212,175,55,0.06) 0%, transparent 60%);
}

.cta-banner h2 {
  color: #FFFFFF;
  margin-bottom: 1rem;
  position: relative;
}

.cta-banner p {
  color: rgba(255,255,255,0.6);
  max-width: 520px;
  margin: 0 auto 1.5rem;
  position: relative;
}

.cta-banner .btn {
  position: relative;
}

/* --- Filter Bar --- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 2.5rem;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-muted);
  background: transparent;
  border: 1px solid rgba(0,0,0,0.1);
  cursor: pointer;
  transition: all var(--transition-fast);
  border-radius: 0;
}

.filter-btn:hover,
.filter-btn.active {
  color: var(--color-primary);
  border-color: var(--color-gold);
  background: rgba(212,175,55,0.05);
}

/* --- Pagination --- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 3rem;
}

.page-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-muted);
  background: #FFFFFF;
  border: 1px solid rgba(0,0,0,0.08);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.page-btn:hover,
.page-btn.active {
  color: #FFFFFF;
  background: var(--color-primary);
  border-color: var(--color-primary);
}

/* --- Back to top --- */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 1rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: #FFFFFF;
  cursor: pointer;
  z-index: 800;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  border: none;
  font-size: 1.125rem;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--color-gold);
  color: var(--color-primary);
}