/* ============================================
   FASHION APPAREL MANUFACTURER — Design System
   European & American Minimalist Luxury Style
   ============================================ */

/* --- CSS Variables --- */
:root {
  --color-primary: #121212;
  --color-accent: #BFA88A;
  --color-cool: #64748B;
  --color-dark: #1F1F1F;
  --color-gray: #9CA3AF;
  --color-light: #F6F6F6;
  --color-white: #FFFFFF;
  --color-border: #E5E5E5;

  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.10);
  --shadow-xl: 0 12px 60px rgba(0,0,0,0.12);

  --radius-none: 0px;
  --radius-sm: 2px;
  --radius-md: 4px;

  --transition-fast: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 280ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-primary);
  background: var(--color-white);
  overflow-x: hidden;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.2;
  color: var(--color-primary);
}

h1 { font-size: clamp(2.25rem, 5vw, 3rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }
h4 { font-size: 1.125rem; }

.section-label {
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.section-title {
  margin-bottom: 16px;
}

.section-desc {
  font-size: 16px;
  color: var(--color-cool);
  max-width: 640px;
  line-height: 1.7;
}

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

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

.section-padding {
  padding-top: 3rem;
  padding-bottom: 3rem;
}

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

/* --- Header / Navigation --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: background var(--transition-base), box-shadow var(--transition-base);
  padding: 20px 0;
}

.site-header.scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
  padding: 12px 0;
}

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

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

.logo {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--color-white);
  text-decoration: none;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.site-header.scrolled .logo {
  color: var(--color-primary);
}

.logo-accent {
  color: var(--color-accent);
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  padding: 4px 0;
  position: relative;
  transition: color var(--transition-fast);
}

.site-header.scrolled .nav-link {
  color: var(--color-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

.nav-link:hover { color: var(--color-accent); }
.nav-link:hover::after { width: 100%; }

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  transition: all var(--transition-base);
}

.site-header.scrolled .nav-toggle span {
  background: var(--color-primary);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
  background: var(--color-primary);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
  background: var(--color-primary);
}

/* Mobile Nav */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 400px;
  height: 100vh;
  background: var(--color-white);
  z-index: 999;
  padding: 100px 40px 40px;
  transition: right var(--transition-base);
  overflow-y: auto;
}

.mobile-nav.active {
  right: 0;
}

.mobile-nav .nav-link {
  display: block;
  color: var(--color-primary);
  font-size: 15px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav .nav-link::after { display: none; }

.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 998;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.mobile-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

@media (max-width: 768px) {
  .nav-list { display: none; }
  .nav-toggle { display: flex; }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  text-decoration: none;
  padding: 14px 36px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

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

.btn-primary:hover {
  background: var(--color-white);
  color: var(--color-primary);
  box-shadow: inset 0 0 0 1px var(--color-primary);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.5);
}

.btn-outline:hover {
  background: var(--color-white);
  color: var(--color-primary);
  box-shadow: inset 0 0 0 1px var(--color-white);
}

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

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

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

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

.btn-sm {
  padding: 10px 24px;
  font-size: 11px;
}

.btn-lg {
  padding: 18px 48px;
  font-size: 14px;
}

/* --- Cards --- */
.card {
  background: var(--color-white);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-image {
  position: relative;
  overflow: hidden;
  background: var(--color-light);
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-hover:hover .card-image img {
  transform: scale(1.05);
}

.card-body {
  padding: 24px;
}

.card-tag {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.card-title {
  font-size: 18px;
  margin-bottom: 8px;
  transition: color var(--transition-fast);
}

.card-hover:hover .card-title {
  color: var(--color-accent);
}

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

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;

  background: linear-gradient(rgba(18,18,18,0.5), rgba(18,18,18,0.65)), url('../images/b2.jpg?v=3') center/cover no-repeat;
  overflow: hidden;

}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(18,18,18,0.4) 0%, rgba(18,18,18,0.7) 100%);
  z-index: 1;
}

.hero-bg-placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.6);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 120px 1rem 80px;
  width: 100%;
}

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

.hero-eyebrow {
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 24px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s ease forwards 0.2s;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--color-white);
  line-height: 1.08;
  margin-bottom: 24px;
  max-width: 800px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s ease forwards 0.4s;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: rgba(255,255,255,0.7);
  line-height: 1.7;
  max-width: 520px;
  margin-bottom: 40px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s ease forwards 0.6s;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s ease forwards 0.8s;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.5);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  animation: bounceDown 2s ease infinite;
}

.hero-scroll-line {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.3);
}

/* --- Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes bounceDown {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* Scroll-triggered animations */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* --- Page Header --- */
.page-header {
  padding: 160px 0 80px;
  background: var(--color-primary);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(18,18,18,0.3) 0%, rgba(18,18,18,0.8) 100%);
}

.page-header-content {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

.page-header .hero-eyebrow,
.page-header .hero-title,
.page-header .hero-subtitle {
  opacity: 1;
  transform: none;
  animation: none;
}

.page-header .hero-title {
  color: var(--color-white);
  font-size: clamp(2rem, 5vw, 3.5rem);
}

.page-header .hero-subtitle {
  margin-left: auto;
  margin-right: auto;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
  font-size: 13px;
  color: rgba(255,255,255,0.6);
}

.breadcrumb a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb a:hover { color: var(--color-white); }

/* --- About Section --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
}

.about-image-wrap {
  position: relative;
  overflow: hidden;
}

.about-image-wrap img {
  width: 100%;
  display: block;
}

.about-image-accent {
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 200px;
  height: 200px;
  border: 1px solid var(--color-accent);
  z-index: -1;
}

@media (max-width: 768px) {
  .about-image-accent { display: none; }
}

/* --- Stats --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  background: var(--color-border);
}

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

.stat-item {
  background: var(--color-white);
  text-align: center;
  padding: 40px 24px;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: -0.5px;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 13px;
  color: var(--color-cool);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* --- Product Grid --- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .product-grid { grid-template-columns: 1fr; }
}

.product-card .card-image {
  aspect-ratio: 3/4;
  background: var(--color-light);
}

/* --- Filter Bar --- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.filter-btn {
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 10px 24px;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-cool);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

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

@media (max-width: 1024px) {
  .advantage-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .advantage-grid { grid-template-columns: 1fr; }
}

.advantage-card {
  text-align: center;
  padding: 40px 28px;
  background: var(--color-white);
  transition: all var(--transition-base);
}

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

.advantage-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-light);
  transition: background var(--transition-fast);
}

.advantage-card:hover .advantage-icon {
  background: var(--color-primary);
}

.advantage-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

.advantage-card:hover .advantage-icon svg {
  color: var(--color-accent);
}

.advantage-title {
  font-size: 16px;
  margin-bottom: 8px;
}

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

/* --- Process / Timeline --- */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

@media (max-width: 768px) {
  .process-steps { grid-template-columns: 1fr; gap: 32px; }
}

.process-step {
  text-align: center;
  padding: 0 24px;
  position: relative;
}

.process-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 28px;
  right: -50%;
  width: 100%;
  height: 1px;
  background: var(--color-border);
  z-index: 0;
}

@media (max-width: 768px) {
  .process-step:not(:last-child)::after {
    top: auto;
    bottom: -16px;
    left: 50%;
    right: auto;
    width: 1px;
    height: 32px;
    transform: translateX(-50%);
  }
}

.process-number {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: var(--color-accent);
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  position: relative;
  z-index: 1;
}

.process-title {
  font-size: 16px;
  margin-bottom: 4px;
}

.process-desc {
  font-size: 13px;
  color: var(--color-cool);
}

/* --- CTA Section --- */
.cta-section {
  background: var(--color-primary);
  text-align: center;
  padding: 80px 0;
}

.cta-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  color: var(--color-white);
  margin-bottom: 16px;
}

.cta-text {
  color: rgba(255,255,255,0.6);
  max-width: 520px;
  margin: 0 auto 32px;
  font-size: 16px;
}

/* --- Contact Form --- */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 14px 16px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--color-primary);
  background: var(--color-light);
  border: 1px solid transparent;
  outline: none;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-primary);
  background: var(--color-white);
}

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

/* --- Contact Info Card --- */
.contact-info-card {
  padding: 40px;
  background: var(--color-light);
}

.contact-info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
}

.contact-info-icon svg {
  width: 18px;
  height: 18px;
  color: var(--color-accent);
}

.contact-info-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-cool);
  margin-bottom: 4px;
}

.contact-info-value {
  font-size: 15px;
  color: var(--color-primary);
  text-decoration: none;
  display: block;
}

/* --- Detail Page --- */
.detail-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.detail-gallery-main {
  grid-row: span 2;
  background: var(--color-light);
  aspect-ratio: 3/4;
  overflow: hidden;
}

.detail-gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.detail-gallery-thumb {
  background: var(--color-light);
  aspect-ratio: 1;
  overflow: hidden;
  cursor: pointer;
  transition: opacity var(--transition-fast);
}

.detail-gallery-thumb:hover { opacity: 0.8; }

.detail-gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.detail-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.detail-spec-item {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
}

.detail-spec-label {
  color: var(--color-cool);
}

.detail-spec-value {
  font-weight: 500;
}

/* --- Article Content --- */
.article-content {
  max-width: 720px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-dark);
}

.article-content p {
  margin-bottom: 24px;
}

.article-content h2 {
  font-size: 24px;
  margin: 48px 0 16px;
}

.article-content h3 {
  font-size: 20px;
  margin: 32px 0 12px;
}

.article-content ul,
.article-content ol {
  margin-bottom: 24px;
  padding-left: 24px;
}

.article-content li {
  margin-bottom: 8px;
}

.article-content blockquote {
  border-left: 2px solid var(--color-accent);
  padding: 16px 24px;
  margin: 32px 0;
  font-style: italic;
  color: var(--color-cool);
  background: var(--color-light);
}

.article-content img {
  width: 100%;
  margin: 32px 0;
}

/* --- Related Posts --- */
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 768px) {
  .related-grid { grid-template-columns: 1fr; }
}

/* --- Pagination --- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
}

.page-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-primary);
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
}

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

/* --- Footer --- */
.site-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.6);
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
}

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

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}

.footer-logo {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--color-white);
  margin-bottom: 16px;
}

.footer-about {
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 320px;
}

.footer-heading {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
}

.footer-links li { margin-bottom: 10px; }

.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  margin-top: 60px;
  padding: 24px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
}

@media (max-width: 480px) {
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* --- Floating Customer Service --- */
.floating-cs {
  position: fixed;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 990;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.floating-cs-btn {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  position: relative;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.floating-cs-btn:hover {
  background: var(--color-primary);
}

.floating-cs-btn svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

.floating-cs-btn:hover svg {
  color: var(--color-accent);
}

.floating-cs-tooltip {
  position: absolute;
  right: 60px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 12px;
  font-weight: 500;
  padding: 8px 16px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.floating-cs-btn:hover .floating-cs-tooltip {
  opacity: 1;
}

.wechat-qr {
  position: absolute;
  right: 60px;
  bottom: 0;
  width: 160px;
  height: 160px;
  background: var(--color-white);
  box-shadow: var(--shadow-lg);
  padding: 12px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 8px;
}

.floating-cs-btn:hover .wechat-qr {
  opacity: 1;
}

.wechat-qr-placeholder {
  width: 100px;
  height: 100px;
  background: var(--color-light);
  display: flex;
  align-items: center;
  justify-content: center;
}

.wechat-qr-placeholder svg {
  width: 48px;
  height: 48px;
  color: var(--color-cool);
}

.wechat-qr-text {
  font-size: 11px;
  color: var(--color-cool);
  text-align: center;
}

/* --- Back to Top --- */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 990;
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

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

.back-to-top svg {
  width: 18px;
  height: 18px;
}

/* --- Quality Page --- */
.qc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 768px) {
  .qc-grid { grid-template-columns: 1fr; }
}

.qc-card {
  padding: 40px 32px;
  background: var(--color-white);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.qc-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.qc-card-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-light);
}

.qc-card-icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-accent);
}

/* --- Case Study Cards --- */
.case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

@media (max-width: 768px) {
  .case-grid { grid-template-columns: 1fr; }
}

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

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

.case-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.case-card:hover .case-card-image img {
  transform: scale(1.05);
}

.case-card-body {
  padding: 24px 0;
}

.case-card-brand {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
}

/* --- Tabs --- */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 40px;
}

.tab-btn {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 14px 32px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--color-cool);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn:hover,
.tab-btn.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

@media (max-width: 480px) {
  .tab-btn { padding: 12px 16px; font-size: 11px; }
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}